Changelog

Apply uri-root-path change to coffee/sass files and regenerate.

.dockerignore

@@ -0,0 +1,6 @@
+.git
+.gitignore
+.dockerignore
+Dockerfile
+README.md
+butterfly.png

.gitignore

@@ -0,0 +1,13 @@
+*.crt
+*.key
+*.p12
+*.pyc
+node_modules/
+*.src.coffee
+*.map
+sass/scss
+*.egg-info/
+build/
+.cache/
+.env*
+.pytest_cache

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "butterfly/themes"]
+	path = butterfly/themes
+	url = https://github.com/paradoxxxzero/butterfly-themes

.isort.cfg

@@ -0,0 +1,2 @@
+[settings]
+multi_line_output=4

CHANGELOG.md

@@ -0,0 +1,46 @@
+[3.2.5](https://github.com/paradoxxxzero/butterfly/compare/3.2.4...3.2.5)
+=====
+
+* Fix #155 again (PR #179)
+
+
+[3.2.4](https://github.com/paradoxxxzero/butterfly/compare/3.2.3...3.2.4)
+=====
+
+* Fix up --uri-root-path so behaves as one would expect for this. Fix #155 (PR #173 thanks @GrahamDumpleton)
+* Fix websocket keepalive. Fix #167 (PR #172 thanks @fzumstein)
+
+[3.2.3](https://github.com/paradoxxxzero/butterfly/compare/3.2.2...3.2.3)
+=====
+
+* Complete support for IME & CJK rendering (#168 thanks @PeterCxy)
+
+3.2.2
+=====
+
+* Fix unescaping entities when linkifying
+
+3.2.1
+=====
+
+* Issue correct X.509 v3 certificates (you will need to re-generate your certs)
+
+3.1.5
+=====
+
+* Fix new option in older tornado version. (#146 thanks @warpkwd)
+
+3.1.4
+=====
+
+* Add --i-hereby-declare-i-dont-want-any-security-whatsoever option (#143)
+
+3.1.3
+=====
+
+* Fix lsof parsing crash on python 2
+
+3.1.0
+=====
+
+* Start a changelog

Dockerfile

@@ -0,0 +1,28 @@
+FROM ubuntu:16.04
+
+RUN apt-get update \
+ && apt-get install -y -q --no-install-recommends \
+    build-essential \
+    libffi-dev \
+    libssl-dev \
+    python-dev \
+    python-setuptools \
+    ca-certificates \
+ && easy_install pip \
+ && pip install --upgrade setuptools \
+ && apt-get clean \
+ && rm -r /var/lib/apt/lists/*
+
+WORKDIR /opt
+ADD . /opt/app
+WORKDIR /opt/app
+
+RUN python setup.py build \
+ && python setup.py install
+
+ADD docker/run.sh /opt/run.sh
+
+EXPOSE 57575
+
+CMD ["butterfly.server.py", "--unsecure", "--host=0.0.0.0"]
+ENTRYPOINT ["docker/run.sh"]

Gruntfile.coffee

@@ -0,0 +1,68 @@
+module.exports = (grunt) ->
+
+  grunt.initConfig
+    pkg: grunt.file.readJSON('package.json')
+
+    uglify:
+      options:
+        banner: '/*! <%= pkg.name %>
+           <%= grunt.template.today("yyyy-mm-dd") %> */\n'
+        sourceMap: true
+
+      butterfly:
+        files:
+          'butterfly/static/main.min.js': 'butterfly/static/main.js'
+          'butterfly/static/ext.min.js': 'butterfly/static/ext.js'
+
+    sass:
+      options:
+        includePaths: ['butterfly/sass/']
+
+      butterfly:
+        expand: true
+        cwd: 'butterfly/sass/'
+        src: '*.sass'
+        dest: 'butterfly/static/'
+        ext: '.css'
+
+    coffee:
+      options:
+        sourceMap: true
+
+      butterfly:
+        files:
+          'butterfly/static/main.js': 'coffees/*.coffee'
+          'butterfly/static/ext.js':  'coffees/ext/*.coffee'
+
+    coffeelint:
+      butterfly:
+        'coffees/**/*.coffee'
+
+    watch:
+      options:
+        livereload: true
+      coffee:
+        files: [
+          'coffees/ext/*.coffee'
+          'coffees/*.coffee'
+          'Gruntfile.coffee'
+        ]
+        tasks: ['coffeelint', 'coffee']
+
+      sass:
+        files: [
+          'butterfly/sass/*.sass'
+        ]
+        tasks: ['sass']
+
+  grunt.loadNpmTasks 'grunt-contrib-coffee'
+  grunt.loadNpmTasks 'grunt-contrib-watch'
+  grunt.loadNpmTasks 'grunt-contrib-uglify'
+  grunt.loadNpmTasks 'grunt-contrib-cssmin'
+  grunt.loadNpmTasks 'grunt-coffeelint'
+  grunt.loadNpmTasks 'grunt-sass'
+  grunt.registerTask 'dev', [
+    'coffeelint', 'coffee', 'sass', 'watch']
+  grunt.registerTask 'css', ['sass']
+  grunt.registerTask 'default', [
+    'coffeelint', 'coffee', 'sass', 'uglify']

LICENSE

@@ -1,4 +1,4 @@
-butterfly Copyright (C) 2014  Florian Mounier, Kozea
+butterfly Copyright(C) 2015-2017 Florian Mounier, Kozea
 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation, either version 3 of the License, or

Makefile

@@ -0,0 +1,37 @@
+include Makefile.config
+-include Makefile.custom.config
+
+all: install lint check-outdated run-debug
+
+install:
+	test -d $(VENV) || virtualenv $(VENV) -p $(PYTHON_VERSION)
+	$(PIP) install --upgrade --no-cache pip setuptools -e .[lint,themes] devcore
+	$(NPM) install
+
+clean:
+	rm -fr $(NODE_MODULES)
+	rm -fr $(VENV)
+	rm -fr *.egg-info
+
+lint:
+	$(PYTEST) --flake8 -m flake8 $(PROJECT_NAME)
+	$(PYTEST) --isort -m isort $(PROJECT_NAME)
+
+check-outdated:
+	$(PIP) list --outdated --format=columns
+
+ARGS ?= --port=1212 --unsecure --debug
+run-debug:
+	$(PYTHON) ./butterfly.server.py $(ARGS)
+
+build-coffee:
+	$(NODE_MODULES)/.bin/grunt
+
+release: build-coffee
+	git pull
+	$(eval VERSION := $(shell PROJECT_NAME=$(PROJECT_NAME) $(VENV)/bin/devcore bump $(LEVEL)))
+	git commit -am "Bump $(VERSION)"
+	git tag $(VERSION)
+	$(PYTHON) setup.py sdist bdist_wheel upload
+	git push
+	git push --tags

Makefile.config

@@ -0,0 +1,10 @@
+PROJECT_NAME = butterfly
+
+# Python env
+PYTHON_VERSION ?= python
+VENV = $(PWD)/.env$(if $(filter $(PYTHON_VERSION),python),,-$(PYTHON_VERSION))
+PIP = $(VENV)/bin/pip
+PYTHON = $(VENV)/bin/python
+PYTEST = $(VENV)/bin/py.test
+NODE_MODULES = $(PWD)/node_modules
+NPM = yarn

README.md

@@ -1,45 +1,141 @@
-# ƸӜƷ butterfly
+# ƸӜƷ butterfly 3.0
 
-![](https://raw.github.com/paradoxxxzero/butterfly/master/butterfly.png)
+![](http://paradoxxxzero.github.io/assets/butterfly_2.0_1.gif)
 
 
 ## Description
 
-Butterfly is a tornado web server written in python which powers a full featured web terminal.
+Butterfly is a xterm compatible terminal that runs in your browser.
 
-The js part is heavily based on [term.js](https://github.com/chjj/term.js/) which is heavily based on [jslinux](http://bellard.org/jslinux/).
 
+## Features
+
+* xterm compatible (support a lot of unused features!)
+* Native browser scroll and search
+* Theming in css / sass [(20 preset themes)](https://github.com/paradoxxxzero/butterfly-themes) endless possibilities!
+* HTML in your terminal! cat images and use <table>
+* Multiple sessions support (à la screen -x) to simultaneously access a terminal from several places on the planet!
+* Secure authentication with X509 certificates!
+* 16,777,216 colors support!
+* Keyboard text selection!
+* Desktop notifications on terminal output!
+* Geolocation from browser!
+* May work on firefox too!
 
 ## Try it
 
-```bash
-    $ pip install butterfly
-    $ butterfly.server.py
+``` bash
+$ pip install butterfly
+$ pip install butterfly[themes]  # If you want to use themes
+$ pip install butterfly[systemd]  # If you want to use systemd
+$ butterfly
 ```
 
-Then open [localhost:57575](http://localhost:57575) in your favorite browser and done.
+A new tab should appear in your browser. Then type
+
+``` bash
+$ butterfly help
+```
+
+To get an overview of butterfly features.
 
 
+## Run it as a server
+
+``` bash
+$ butterfly.server.py --host=myhost --port=57575
+```
+
+Or with login prompt
+
+```bash
+$ butterfly.server.py --host=myhost --port=57575 --login
+```
+
+Or with PAM authentication (ROOT required)
+
+```bash
+# butterfly.server.py --host=myhost --port=57575 --login --pam_profile=sshd
+```
+
+You can change `sshd` to your preferred PAM profile.
+
+The first time it will ask you to generate the certificates (see: [here](http://paradoxxxzero.github.io/2014/03/21/butterfly-with-ssl-auth.html))
+
+
+## Run it with systemd (linux)
+
+Systemd provides a way to automatically activate daemons when needed (socket activation):
+
+``` bash
+$ cd /etc/systemd/system
+$ curl -O https://raw.githubusercontent.com/paradoxxxzero/butterfly/master/butterfly.service
+$ curl -O https://raw.githubusercontent.com/paradoxxxzero/butterfly/master/butterfly.socket
+$ systemctl enable butterfly.socket
+$ systemctl start butterfly.socket
+```
+
+Don't forget to update the /etc/butterfly/butterfly.conf file with your server options (host, port, shell, ...) and to install butterfly with the [systemd] flag.
+
+
+## Contribute
+
+and make the world better (or just butterfly).
+
+Don't hesitate to fork the repository and start hacking on it, I am very open to pull requests.
+
+If you don't know what to do go to the github issues and pick one you like.
+
+If you want to motivate me to continue working on this project you can tip me, see: http://paradoxxxzero.github.io/about/
+
+Client side development use [grunt](http://gruntjs.com/) and [bower](http://bower.io/).
+
+## Credits
+
+The js part is based on [term.js](https://github.com/chjj/term.js/) which is based on [jslinux](http://bellard.org/jslinux/).
 ## Author
 
-[Florian Mounier](http://github.com/paradoxxxzero)
-
+[Florian Mounier](http://paradoxxxzero.github.io/)
 
 ## License
 
 ```
-    butterfly Copyright (C) 2014  Florian Mounier
+butterfly Copyright (C) 2015-2017  Florian Mounier
 
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
 
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
 
-    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+```
+
+## Docker
+There is a docker repository created for this project that is set to automatically rebuild when there is a push
+into this repository: https://registry.hub.docker.com/u/garland/butterfly/
+
+### Example usage
+
+Starting with login and password
+
+``` bash
+docker run --env PASSWORD=password -d garland/butterfly --login
+```
+
+Starting with no password
+
+``` bash
+docker run -d -p 57575:57575 garland/butterfly
+```
+
+Starting with a different port
+
+``` bash
+docker run -d -p 12345:12345 garland/butterfly --port=12345
 ```

bin/hr

@@ -1,4 +0,0 @@
-#!/usr/bin/env python
-
-
-print('\x1b]99;<hr />\x07')

bin/ils

@@ -1,31 +0,0 @@
-#!/usr/bin/env python
-#Depends: pillow
-#Broken: Too slow !
-from PIL import Image
-import os
-import mimetypes
-import base64
-import io
-print('\x1b]99;')
-
-out = ''
-
-for f in os.listdir(os.getcwd()):
-    mime = mimetypes.guess_type(f)[0]
-    if 'image' in (mime or ''):
-        try:
-            im = Image.open(f)
-            im.thumbnail((100, 100), Image.ANTIALIAS)
-            buf = io.BytesIO()
-            im.save(buf, im.format)
-            buf.seek(0)
-            out += '<img src="data:%s;base64,%s" alt="%s" />' % (
-                mime,
-                base64.b64encode(buf.read()).decode('ascii'),
-                f)
-        except:
-            pass
-
-print(out)
-
-print('\x07')

bin/month

@@ -1,13 +0,0 @@
-#!/usr/bin/env python
-
-from calendar import LocaleHTMLCalendar
-from datetime import datetime
-import locale
-now = datetime.now()
-calendar = LocaleHTMLCalendar(locale=locale.getlocale())
-calendar_table = calendar.formatmonth(now.year, now.month)
-calendar_table = calendar_table.replace('border="0"', 'border="1"')
-
-print('\x1b]99;')
-print(calendar_table)
-print('\x07')

bin/nt

@@ -1,4 +0,0 @@
-#!/usr/bin/env python
-import os
-import webbrowser
-webbrowser.open('%swd%s' % (os.getenv('LOCATION'), os.getcwd()))

bower.json

@@ -0,0 +1,20 @@
+{
+  "name": "butterfly",
+  "version": "1.0.0",
+  "authors": [
+    "Florian Mounier <florian.mounier@kozea.fr>"
+  ],
+  "description": "A sleek web based terminal emulator",
+  "license": "None",
+  "private": true,
+  "ignore": [
+    "**/.*",
+    "node_modules",
+    "bower_components",
+    "test",
+    "tests"
+  ],
+  "dependencies": {
+    "google-caja": "*"
+  }
+}

butterfly.server.py

@@ -3,7 +3,7 @@
 
 # This file is part of butterfly
 #
-# butterfly Copyright (C) 2014  Florian Mounier
+# butterfly Copyright(C) 2015-2017 Florian Mounier
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
@@ -19,46 +19,368 @@
 
 import tornado.options
 import tornado.ioloop
-
-tornado.options.define("secret", default='secret', help="Secret")
-tornado.options.define("debug", default=False, help="Debug mode")
-tornado.options.define("host", default='127.0.0.1', help="Server host")
-tornado.options.define("port", default=57575, type=int, help="Server port")
-tornado.options.define("shell", help="Shell to execute at login")
-
-tornado.options.parse_command_line()
-
+import tornado.httpserver
+try:
+    from tornado_systemd import SystemdHTTPServer as HTTPServer
+except ImportError:
+    from tornado.httpserver import HTTPServer
 
 import logging
+import webbrowser
+import uuid
+import ssl
+import getpass
+import os
+import shutil
+import stat
+import socket
+import sys
+
+tornado.options.define("debug", default=False, help="Debug mode")
+tornado.options.define("more", default=False,
+                       help="Debug mode with more verbosity")
+tornado.options.define("unminified", default=False,
+                       help="Use the unminified js (for development only)")
+
+tornado.options.define("host", default='localhost', help="Server host")
+tornado.options.define("port", default=57575, type=int, help="Server port")
+tornado.options.define("keepalive_interval", default=30, type=int,
+                       help="Interval between ping packets sent from server "
+                       "to client (in seconds)")
+tornado.options.define("one_shot", default=False,
+                       help="Run a one-shot instance. Quit at term close")
+tornado.options.define("shell", help="Shell to execute at login")
+tornado.options.define("motd", default='motd', help="Path to the motd file.")
+tornado.options.define("cmd",
+                       help="Command to run instead of shell, f.i.: 'ls -l'")
+tornado.options.define("unsecure", default=False,
+                       help="Don't use ssl not recommended")
+tornado.options.define("i_hereby_declare_i_dont_want_any_security_whatsoever",
+                       default=False,
+                       help="Remove all security and warnings. There are some "
+                       "use cases for that. Use this if you really know what "
+                       "you are doing.")
+tornado.options.define("login", default=False,
+                       help="Use login screen at start")
+tornado.options.define("pam_profile", default="", type=str,
+                       help="When --login=True provided and running as ROOT, "
+                       "use PAM with the specified PAM profile for "
+                       "authentication and then execute the user's default "
+                       "shell. Will override --shell.")
+tornado.options.define("force_unicode_width",
+                       default=False,
+                       help="Force all unicode characters to the same width."
+                       "Useful for avoiding layout mess.")
+tornado.options.define("ssl_version", default=None,
+                       help="SSL protocol version")
+tornado.options.define("generate_certs", default=False,
+                       help="Generate butterfly certificates")
+tornado.options.define("generate_current_user_pkcs", default=False,
+                       help="Generate current user pfx for client "
+                       "authentication")
+tornado.options.define("generate_user_pkcs", default='',
+                       help="Generate user pfx for client authentication "
+                       "(Must be root to create for another user)")
+tornado.options.define("uri_root_path", default='',
+                       help="Sets the servier root path: "
+                       "example.com/<uri_root_path>/static/")
+
+
+if os.getuid() == 0:
+    ev = os.getenv('XDG_CONFIG_DIRS', '/etc')
+else:
+    ev = os.getenv(
+        'XDG_CONFIG_HOME', os.path.join(
+            os.getenv('HOME', os.path.expanduser('~')),
+            '.config'))
+
+butterfly_dir = os.path.join(ev, 'butterfly')
+conf_file = os.path.join(butterfly_dir, 'butterfly.conf')
+ssl_dir = os.path.join(butterfly_dir, 'ssl')
+
+tornado.options.define("conf", default=conf_file,
+                       help="Butterfly configuration file. "
+                       "Contains the same options as command line.")
+
+tornado.options.define("ssl_dir", default=ssl_dir,
+                       help="Force SSL directory location")
+
+# Do it once to get the conf path
+tornado.options.parse_command_line()
+
+if os.path.exists(tornado.options.options.conf):
+    tornado.options.parse_config_file(tornado.options.options.conf)
+
+# Do it again to overwrite conf with args
+tornado.options.parse_command_line()
+
+# For next time, create them a conf file from template.
+# Need to do this after parsing options so we do not trigger
+# code import for butterfly module, in case that code is
+# dependent on the set of parsed options.
+if not os.path.exists(conf_file):
+    try:
+        import butterfly
+        shutil.copy(
+            os.path.join(
+                os.path.abspath(os.path.dirname(butterfly.__file__)),
+                'butterfly.conf.default'), conf_file)
+        print('butterfly.conf installed in %s' % conf_file)
+    except:
+        pass
+
+options = tornado.options.options
+
 for logger in ('tornado.access', 'tornado.application',
                'tornado.general', 'butterfly'):
-    logging.getLogger(logger).setLevel(
-        logging.DEBUG if tornado.options.options.debug else logging.WARNING)
+    level = logging.WARNING
+    if options.debug:
+        level = logging.INFO
+        if options.more:
+            level = logging.DEBUG
+    logging.getLogger(logger).setLevel(level)
 
 log = logging.getLogger('butterfly')
-log.debug('Starting server')
-ioloop = tornado.ioloop.IOLoop.instance()
 
+host = options.host
+port = options.port
+
+if options.i_hereby_declare_i_dont_want_any_security_whatsoever:
+    options.unsecure = True
+
+
+if not os.path.exists(options.ssl_dir):
+    os.makedirs(options.ssl_dir)
+
+
+def to_abs(file):
+    return os.path.join(options.ssl_dir, file)
+
+
+ca, ca_key, cert, cert_key, pkcs12 = map(to_abs, [
+    'butterfly_ca.crt', 'butterfly_ca.key',
+    'butterfly_%s.crt', 'butterfly_%s.key',
+    '%s.p12'])
+
+
+def fill_fields(subject):
+    subject.C = 'WW'
+    subject.O = 'Butterfly'
+    subject.OU = 'Butterfly Terminal'
+    subject.ST = 'World Wide'
+    subject.L = 'Terminal'
+
+
+def write(file, content):
+    with open(file, 'wb') as fd:
+        fd.write(content)
+    print('Writing %s' % file)
+
+
+def read(file):
+    print('Reading %s' % file)
+    with open(file, 'rb') as fd:
+        return fd.read()
+
+def b(s):
+    return s.encode('utf-8')
+
+
+if options.generate_certs:
+    from OpenSSL import crypto
+    print('Generating certificates for %s (change it with --host)\n' % host)
+
+    if not os.path.exists(ca) and not os.path.exists(ca_key):
+        print('Root certificate not found, generating it')
+        ca_pk = crypto.PKey()
+        ca_pk.generate_key(crypto.TYPE_RSA, 2048)
+        ca_cert = crypto.X509()
+        ca_cert.set_version(2)
+        ca_cert.get_subject().CN = 'Butterfly CA on %s' % socket.gethostname()
+        fill_fields(ca_cert.get_subject())
+        ca_cert.set_serial_number(uuid.uuid4().int)
+        ca_cert.gmtime_adj_notBefore(0)  # From now
+        ca_cert.gmtime_adj_notAfter(315360000)  # to 10y
+        ca_cert.set_issuer(ca_cert.get_subject())  # Self signed
+        ca_cert.set_pubkey(ca_pk)
+        ca_cert.add_extensions([
+            crypto.X509Extension(
+                b('basicConstraints'), True, b('CA:TRUE, pathlen:0')),
+            crypto.X509Extension(
+                b('keyUsage'), True, b('keyCertSign, cRLSign')),
+            crypto.X509Extension(
+                b('subjectKeyIdentifier'), False, b('hash'), subject=ca_cert),
+        ])
+        ca_cert.add_extensions([
+            crypto.X509Extension(
+                b('authorityKeyIdentifier'), False,
+                b('issuer:always, keyid:always'),
+                issuer=ca_cert, subject=ca_cert
+            )
+        ])
+        ca_cert.sign(ca_pk, 'sha512')
+
+        write(ca, crypto.dump_certificate(crypto.FILETYPE_PEM, ca_cert))
+        write(ca_key, crypto.dump_privatekey(crypto.FILETYPE_PEM, ca_pk))
+        os.chmod(ca_key, stat.S_IRUSR | stat.S_IWUSR)  # 0o600 perms
+    else:
+        print('Root certificate found, using it')
+        ca_cert = crypto.load_certificate(crypto.FILETYPE_PEM, read(ca))
+        ca_pk = crypto.load_privatekey(crypto.FILETYPE_PEM, read(ca_key))
+
+    server_pk = crypto.PKey()
+    server_pk.generate_key(crypto.TYPE_RSA, 2048)
+    server_cert = crypto.X509()
+    server_cert.set_version(2)
+    server_cert.get_subject().CN = host
+    server_cert.add_extensions([
+        crypto.X509Extension(
+            b('basicConstraints'), False, b('CA:FALSE')),
+        crypto.X509Extension(
+            b('subjectKeyIdentifier'), False, b('hash'), subject=server_cert),
+        crypto.X509Extension(
+            b('subjectAltName'), False, b('DNS:%s' % host)),
+    ])
+    server_cert.add_extensions([
+        crypto.X509Extension(
+            b('authorityKeyIdentifier'), False,
+            b('issuer:always, keyid:always'),
+            issuer=ca_cert, subject=ca_cert
+        )
+    ])
+    fill_fields(server_cert.get_subject())
+    server_cert.set_serial_number(uuid.uuid4().int)
+    server_cert.gmtime_adj_notBefore(0)  # From now
+    server_cert.gmtime_adj_notAfter(315360000)  # to 10y
+    server_cert.set_issuer(ca_cert.get_subject())  # Signed by ca
+    server_cert.set_pubkey(server_pk)
+    server_cert.sign(ca_pk, 'sha512')
+
+    write(cert % host, crypto.dump_certificate(
+        crypto.FILETYPE_PEM, server_cert))
+    write(cert_key % host, crypto.dump_privatekey(
+        crypto.FILETYPE_PEM, server_pk))
+    os.chmod(cert_key % host, stat.S_IRUSR | stat.S_IWUSR)  # 0o600 perms
+
+    print('\nNow you can run --generate-user-pkcs=user '
+          'to generate user certificate.')
+    sys.exit(0)
+
+
+if (options.generate_current_user_pkcs or
+        options.generate_user_pkcs):
+    from butterfly import utils
+    try:
+        current_user = utils.User()
+    except Exception:
+        current_user = None
+
+    from OpenSSL import crypto
+    if not all(map(os.path.exists, [ca, ca_key])):
+        print('Please generate certificates using --generate-certs before')
+        sys.exit(1)
+
+    if options.generate_current_user_pkcs:
+        user = current_user.name
+    else:
+        user = options.generate_user_pkcs
+
+    if user != current_user.name and current_user.uid != 0:
+        print('Cannot create certificate for another user with '
+              'current privileges.')
+        sys.exit(1)
+
+    ca_cert = crypto.load_certificate(crypto.FILETYPE_PEM, read(ca))
+    ca_pk = crypto.load_privatekey(crypto.FILETYPE_PEM, read(ca_key))
+
+    client_pk = crypto.PKey()
+    client_pk.generate_key(crypto.TYPE_RSA, 2048)
+
+    client_cert = crypto.X509()
+    client_cert.set_version(2)
+    client_cert.get_subject().CN = user
+    fill_fields(client_cert.get_subject())
+    client_cert.set_serial_number(uuid.uuid4().int)
+    client_cert.gmtime_adj_notBefore(0)  # From now
+    client_cert.gmtime_adj_notAfter(315360000)  # to 10y
+    client_cert.set_issuer(ca_cert.get_subject())  # Signed by ca
+    client_cert.set_pubkey(client_pk)
+    client_cert.sign(client_pk, 'sha512')
+    client_cert.sign(ca_pk, 'sha512')
+
+    pfx = crypto.PKCS12()
+    pfx.set_certificate(client_cert)
+    pfx.set_privatekey(client_pk)
+    pfx.set_ca_certificates([ca_cert])
+    pfx.set_friendlyname(('%s cert for butterfly' % user).encode('utf-8'))
+
+    while True:
+        password = getpass.getpass('\nPKCS12 Password (can be blank): ')
+        password2 = getpass.getpass('Verify Password (can be blank): ')
+        if password == password2:
+            break
+        print('Passwords do not match.')
+
+    print('')
+    write(pkcs12 % user, pfx.export(password.encode('utf-8')))
+    os.chmod(pkcs12 % user, stat.S_IRUSR | stat.S_IWUSR)  # 0o600 perms
+    sys.exit(0)
+
+
+if options.unsecure:
+    ssl_opts = None
+else:
+    if not all(map(os.path.exists, [cert % host, cert_key % host, ca])):
+        print("Unable to find butterfly certificate for host %s" % host)
+        print(cert % host)
+        print(cert_key % host)
+        print(ca)
+        print("Can't run butterfly without certificate.\n")
+        print("Either generate them using --generate-certs --host=host "
+              "or run as --unsecure (NOT RECOMMENDED)\n")
+        print("For more information go to http://paradoxxxzero.github.io/"
+              "2014/03/21/butterfly-with-ssl-auth.html\n")
+        sys.exit(1)
+
+    ssl_opts = {
+        'certfile': cert % host,
+        'keyfile': cert_key % host,
+        'ca_certs': ca,
+        'cert_reqs': ssl.CERT_REQUIRED
+    }
+    if options.ssl_version is not None:
+        if not hasattr(
+                ssl, 'PROTOCOL_%s' % options.ssl_version):
+            print(
+                "Unknown SSL protocol %s" %
+                options.ssl_version)
+            sys.exit(1)
+        ssl_opts['ssl_version'] = getattr(
+            ssl, 'PROTOCOL_%s' % options.ssl_version)
 
 from butterfly import application
-application.listen(tornado.options.options.port)
+application.butterfly_dir = butterfly_dir
+log.info('Starting server')
+http_server = HTTPServer(application, ssl_options=ssl_opts)
+http_server.listen(port, address=host)
 
+if getattr(http_server, 'systemd', False):
+    os.environ.pop('LISTEN_PID')
+    os.environ.pop('LISTEN_FDS')
 
-url = "http://%s:%d/*" % (
-    tornado.options.options.host, tornado.options.options.port)
+log.info('Starting loop')
 
-# This is for debugging purpose
-try:
-    from wsreload.client import sporadic_reload, watch
-except ImportError:
-    log.debug('wsreload not found')
-else:
-    sporadic_reload({'url': url})
+ioloop = tornado.ioloop.IOLoop.instance()
 
-    files = ['butterfly/static/javascripts/',
-             'butterfly/static/stylesheets/',
-             'butterfly/templates/']
-    watch({'url': url}, files, unwatch_at_exit=True)
+if port == 0:
+    port = list(http_server._sockets.values())[0].getsockname()[1]
+
+url = "http%s://%s:%d/%s" % (
+    "s" if not options.unsecure else "", host, port,
+    (options.uri_root_path.strip('/') + '/') if options.uri_root_path else ''
+)
+
+if not options.one_shot or not webbrowser.open(url):
+    log.warn('Butterfly is ready, open your browser to: %s' % url)
 
-log.debug('Starting loop')
 ioloop.start()

butterfly.service

@@ -1,10 +1,5 @@
 [Unit]
 Description=Butterfly Terminal Server
-After=syslog.target
 
 [Service]
 ExecStart=/usr/bin/butterfly.server.py
-Restart=on-abort
-
-[Install]
-WantedBy=multi-user.target

butterfly.socket

@@ -0,0 +1,5 @@
+[Socket]
+ListenStream=57575
+
+[Install]
+WantedBy=sockets.target

butterfly/__about__.py

@@ -0,0 +1,15 @@
+__title__ = "butterfly"
+__version__ = "3.2.5"
+
+__summary__ = "A sleek web based terminal emulator"
+__uri__ = "https://github.com/paradoxxxzero/butterfly"
+__author__ = "Florian Mounier"
+__email__ = "paradoxxx.zero@gmail.com"
+
+__license__ = "GPLv3"
+__copyright__ = "Copyright 2017 %s" % __author__
+
+__all__ = [
+    '__title__', '__version__', '__summary__', '__uri__', '__author__',
+    '__email__', '__license__', '__copyright__'
+]

butterfly/__init__.py

@@ -1,7 +1,7 @@
 # *-* coding: utf-8 *-*
 # This file is part of butterfly
 #
-# butterfly Copyright (C) 2014  Florian Mounier
+# butterfly Copyright(C) 2015-2017 Florian Mounier
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
@@ -14,8 +14,7 @@
 #
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
-__version__ = '1.1.2'
-
+from .__about__ import *  # noqa: F401,F403
 
 import os
 import tornado.web
@@ -23,6 +22,7 @@ import tornado.options
 import tornado.web
 from logging import getLogger
 
+
 log = getLogger('butterfly')
 
 
@@ -31,10 +31,15 @@ class url(object):
         self.url = url
 
     def __call__(self, cls):
+        if tornado.options.options.uri_root_path:
+            url = '/' + tornado.options.options.uri_root_path.strip('/') + self.url
+        else:
+            url = self.url
         application.add_handlers(
             r'.*$',
-            (tornado.web.url(self.url, cls, name=cls.__name__),)
+            (tornado.web.url(url, cls, name=cls.__name__),)
         )
+
         return cls
 
 
@@ -43,19 +48,38 @@ class Route(tornado.web.RequestHandler):
     def log(self):
         return log
 
+    @property
+    def builtin_themes_dir(self):
+        return os.path.join(
+            os.path.dirname(__file__), 'themes')
+
+    @property
+    def themes_dir(self):
+        return os.path.join(
+            self.application.butterfly_dir, 'themes')
+
+    @property
+    def local_js_dir(self):
+        return os.path.join(
+            self.application.butterfly_dir, 'js')
+
+    def get_theme_dir(self, theme):
+        if theme.startswith('built-in-'):
+            return os.path.join(
+                self.builtin_themes_dir, theme[len('built-in-'):])
+        return os.path.join(
+            self.themes_dir, theme)
+
+
+# Imported from executable
 if hasattr(tornado.options.options, 'debug'):
-    opts = dict(
+    application = tornado.web.Application(
+        static_path=os.path.join(os.path.dirname(__file__), "static"),
+        template_path=os.path.join(os.path.dirname(__file__), "templates"),
         debug=tornado.options.options.debug,
-        cookie_secret=tornado.options.options.secret)
-else:
-    opts = {}
+        static_url_prefix='%s/static/' % (
+            '/%s' % tornado.options.options.uri_root_path.strip('/')
+            if tornado.options.options.uri_root_path else '')
+    )
 
-
-application = tornado.web.Application(
-    static_path=os.path.join(os.path.dirname(__file__), "static"),
-    template_path=os.path.join(os.path.dirname(__file__), "templates"),
-    **opts
-)
-
-
-import butterfly.routes
+    import butterfly.routes  # noqa: F401

butterfly/bin/cat.py

@@ -0,0 +1,33 @@
+#!/usr/bin/env python
+import argparse
+import base64
+import mimetypes
+import os
+import subprocess
+import sys
+
+from butterfly.escapes import image
+
+parser = argparse.ArgumentParser(description='Butterfly cat wrapper.')
+parser.add_argument('-o', action="store_true",
+                    dest='original', help='Force original cat')
+parser.add_argument(
+    'files', metavar='FILES', nargs='+',
+    help='Force original cat')
+
+args, remaining = parser.parse_known_args()
+if args.original:
+    os.execvp('/usr/bin/cat', remaining + args.files)
+
+
+for file in args.files:
+    if (not os.path.exists(sys.argv[1])):
+        print('%s: No such file' % file)
+    else:
+        mime = mimetypes.guess_type(file)[0]
+        if mime and 'image' in mime:
+            with image(mime):
+                with open(file, 'rb') as f:
+                    print(base64.b64encode(f.read()).decode('ascii'))
+        else:
+            subprocess.call(['cat'] + remaining + [file])

butterfly/bin/colors.py

@@ -0,0 +1,146 @@
+#!/usr/bin/env python
+import argparse
+import sys
+
+parser = argparse.ArgumentParser(
+    description='Butterfly terminal color tester.')
+parser.add_argument(
+    '--colors',
+    default='16',
+    choices=['8', '16', '256', '16M'],
+    help='Set the color mode to test')
+args = parser.parse_args()
+
+print()
+
+
+if args.colors in ['8', '16']:
+    print('Background\n')
+    for l in range(3):
+        sys.stdout.write(' ')
+        for i in range(8):
+            sys.stdout.write('\x1b[%dm      \x1b[m ' % (40 + i))
+        sys.stdout.write('\n')
+        sys.stdout.flush()
+
+    if args.colors == '16':
+        print()
+        for l in range(3):
+            sys.stdout.write(' ')
+            for i in range(8):
+                sys.stdout.write('\x1b[%dm      \x1b[m ' % (100 + i))
+            sys.stdout.write('\n')
+            sys.stdout.flush()
+
+    print('\nForeground\n')
+
+    for l in range(3):
+        sys.stdout.write(' ')
+        for i in range(8):
+            sys.stdout.write('\x1b[%dm ░▒▓██\x1b[m ' % (30 + i))
+        sys.stdout.write('\n')
+        sys.stdout.flush()
+
+    if args.colors == '16':
+        print()
+        for l in range(3):
+            sys.stdout.write(' ')
+            for i in range(8):
+                sys.stdout.write('\x1b[1;%dm ░▒▓██\x1b[m ' % (30 + i))
+            sys.stdout.write('\n')
+            sys.stdout.flush()
+
+if args.colors == '256':
+    for i in range(16):
+        sys.stdout.write('\x1b[48;5;%dm    \x1b[m' % (i))
+    print()
+    for i in range(16):
+        sys.stdout.write('\x1b[48;5;%dm %03d\x1b[m' % (i, i))
+    print()
+
+    for j in range(6):
+        for i in range(36):
+            sys.stdout.write('\x1b[48;5;%dm    \x1b[m' % (16 + j * 36 + i))
+        print()
+        for i in range(36):
+            sys.stdout.write('\x1b[48;5;%dm %03d\x1b[m' % (
+                16 + j * 36 + i, 16 + j * 36 + i))
+        print()
+    for i in range(24):
+        sys.stdout.write('\x1b[48;5;%dm    \x1b[m' % (232 + i))
+    print()
+    for i in range(24):
+        sys.stdout.write('\x1b[48;5;%dm %03d\x1b[m' % (232 + i, 232 + i))
+
+if args.colors == '16M':
+    b = 0
+    g = 0
+    for r in range(256):
+        if r == 128:
+            print()
+        sys.stdout.write('\x1b[48;2;%d;%d;%dm \x1b[m' % (r, g, b))
+    print()
+
+    r = 255
+    b = 0
+    for g in range(256):
+        if g == 128:
+            print()
+        sys.stdout.write('\x1b[48;2;%d;%d;%dm \x1b[m' % (r, g, b))
+    print()
+
+    r = 255
+    g = 255
+    for b in range(256):
+        if b == 128:
+            print()
+        sys.stdout.write('\x1b[48;2;%d;%d;%dm \x1b[m' % (r, g, b))
+    print()
+
+    r = 255
+    b = 255
+    for g in reversed(range(256)):
+        if g == 127:
+            print()
+        sys.stdout.write('\x1b[48;2;%d;%d;%dm \x1b[m' % (r, g, b))
+    print()
+
+    g = 0
+    b = 255
+    for r in reversed(range(256)):
+        if r == 127:
+            print()
+        sys.stdout.write('\x1b[48;2;%d;%d;%dm \x1b[m' % (r, g, b))
+    print()
+
+    r = 0
+    g = 0
+    for b in reversed(range(256)):
+        if b == 127:
+            print()
+        sys.stdout.write('\x1b[48;2;%d;%d;%dm \x1b[m' % (r, g, b))
+    print()
+
+    r = 0
+    b = 0
+    for g in range(256):
+        if g == 128:
+            print()
+        sys.stdout.write('\x1b[48;2;%d;%d;%dm \x1b[m' % (r, g, b))
+    print()
+
+    r = 0
+    g = 255
+    for b in range(256):
+        if b == 128:
+            print()
+        sys.stdout.write('\x1b[48;2;%d;%d;%dm \x1b[m' % (r, g, b))
+    print()
+
+    b = 255
+    g = 255
+    for r in range(256):
+        if r == 128:
+            print()
+        sys.stdout.write('\x1b[48;2;%d;%d;%dm \x1b[m' % (r, g, b))
+    print()

butterfly/bin/help.py

@@ -0,0 +1,63 @@
+#!/usr/bin/env python
+import base64
+import os
+import subprocess
+
+import butterfly
+from butterfly.escapes import image
+from butterfly.utils import ansi_colors
+
+print(ansi_colors.white + "Welcome to the butterfly help." + ansi_colors.reset)
+path = os.getenv('BUTTERFLY_PATH')
+if path:
+    path = os.path.join(path, '../static/images/favicon.png')
+
+if path and os.path.exists(path):
+    with image('image/png'):
+        with open(path, 'rb') as i:
+            print(base64.b64encode(i.read()).decode('ascii'))
+print("""
+Butterfly is a xterm compliant terminal built with python and javascript.
+
+{title}Terminal functionalities:{reset}
+  {strong}[ScrollLock]            : {reset}Lock the scrolling to the current position. Press again to release.
+  {strong}[Ctrl] + [c] <<hold>>   : {reset}Cut the output when [Ctrl] + [c] is not enough.
+  {strong}[Ctrl] + [Shift] + [Up] : {reset}Trigger visual selection mode. Hitting [Enter] inserts the selection in the prompt.
+  {strong}[Alt] + [a]             : {reset}Set an alarm which sends a notification when a modification is detected. (Ring on regexp match with [Shift])
+  {strong}[Alt] + [s]             : {reset}Open theme selection prompt. Use [Alt] + [Shift] + [s] to refresh current theme.
+  {strong}[Alt] + [e]             : {reset}List open user sessions. (Only available in secure mode)
+  {strong}[Alt] + [o]             : {reset}Open new terminal (As a popup)
+  {strong}[Alt] + [z]             : {reset}Escape: don't catch the next pressed key.
+                            Useful for using native search for example. ([Alt] + [z] then [Ctrl] + [f]).
+
+
+{title}Butterfly programs:{reset}
+  {strong}b         : {reset}Alias for {strong}butterfly{reset} executable. Takes a comand in parameter or launch a butterfly server for one shot use (if outside butterfly).
+  {strong}b cat     : {reset}A wrapper around cat allowing to display images as <img> instead of binary.
+  {strong}b open    : {reset}Open a new terminal at specified location.
+  {strong}b session : {reset}Open or rattach a butterfly session. Multiplexing is supported.
+  {strong}b colors  : {reset}Test the terminal colors (16, 256 and 16777216 colors)
+  {strong}b html    : {reset}Output in html standard input.
+
+  For more butterfly programs check out: https://github.com/paradoxxxzero/butterfly-demos
+
+
+{title}Styling butterfly:{reset}
+  To style butterfly in sass, you need to have the libsass python library installed.
+
+  Theming is done by overriding the default sass files located in {code}{main}{reset} in your theme directory.
+  This directory can include images and custom fonts.
+  Please take a look at official themes here:  https://github.com/paradoxxxzero/butterfly-themes
+  and submit your best themes as pull request!
+
+  \x1b[{rcol}G\x1b[3m{dark}butterfly @ 2015 Mounier Florian{reset}\
+""".format(
+    title=ansi_colors.light_blue,
+    dark=ansi_colors.light_black,
+    strong=ansi_colors.white,
+    code=ansi_colors.light_yellow,
+    comment=ansi_colors.light_magenta,
+    reset=ansi_colors.reset,
+    rcol=int(subprocess.check_output(['stty', 'size']).split()[1]) - 31,
+    main=os.path.normpath(os.path.join(
+        os.path.abspath(os.path.dirname(butterfly.__file__)), 'sass'))))

butterfly/bin/html.py

@@ -0,0 +1,19 @@
+#!/usr/bin/env python
+import argparse
+import fileinput
+import sys
+
+from butterfly.escapes import html
+
+parser = argparse.ArgumentParser(
+    description="Butterfly html converter.\n\n"
+    "Output in html standard input.\n"
+    "Example: $ echo \"<b>Bold</b>\" | b html",
+    formatter_class=argparse.RawTextHelpFormatter)
+
+parser.parse_known_args()
+
+
+with html():
+    for line in fileinput.input():
+        sys.stdout.write(line)

butterfly/bin/open.py

@@ -0,0 +1,27 @@
+#!/usr/bin/env python
+import argparse
+import os
+import webbrowser
+
+try:
+    from urllib.parse import urlparse, parse_qs, urlencode, urlunparse
+except ImportError:
+    from urlparse import urlparse, parse_qs, urlunparse
+    from urllib import urlencode
+
+
+parser = argparse.ArgumentParser(description='Butterfly tab opener.')
+parser.add_argument(
+    'location',
+    nargs='?',
+    default=os.getcwd(),
+    help='Directory to open the new tab in. (Defaults to current)')
+args = parser.parse_args()
+
+url_parts = urlparse(os.getenv('LOCATION', '/'))
+query = parse_qs(url_parts.query)
+query['path'] = os.path.abspath(args.location)
+
+url = urlunparse(url_parts._replace(path='')._replace(query=urlencode(query)))
+if not webbrowser.open(url):
+    print('Unable to open browser, please go to %s' % url)

butterfly/bin/session.py

@@ -0,0 +1,15 @@
+#!/usr/bin/env python
+import argparse
+import os
+import webbrowser
+
+parser = argparse.ArgumentParser(description='Butterfly session opener.')
+parser.add_argument(
+    'session',
+    help='Open or rattach a butterfly session. '
+    '(Only in secure mode or in user unsecure mode (no su login))')
+args = parser.parse_args()
+
+url = '%ssession/%s' % (os.getenv('LOCATION', '/'), args.session)
+if not webbrowser.open(url):
+    print('Unable to open browser, please go to %s' % url)

butterfly/butterfly.conf.default

@@ -0,0 +1,58 @@
+# Butterfly autogenerated config file
+
+# Activate debug mode
+#
+#debug=False
+
+# In debug mode produce more verbose output
+#
+#more=False
+
+# Use unminified version of js for development
+#
+#unminified=False
+
+# Server host
+# Use 'localhost' for local only
+# Use your ip to share over your network
+# Use '0.0.0.0' to listen to every network
+#
+#host='localhost'
+
+# Server port
+#
+#port=57575
+
+# Shell to launch at start (defaults to user shell)
+#
+#shell=None # shell='/bin/bash' for instance
+
+# Motd, path to custom message of the day file
+#
+#motd='motd'
+
+# Command to run instead of shell
+#
+#cmd=None # cmd='ls -l'
+
+
+# Unsecure mode
+# This mode use http without ssl and is therefore NOT RECOMMENDED
+# Please generate yourself a certificate using the butterfly.server.py command
+#
+#unsecure=False
+
+# Force user login in unsecure mode
+#
+#login=False
+
+# Force unicode width
+# This mode force every character to be the same width
+# Which can be useful in some case
+# But this breaks unicode display of varying width character
+#
+#force_unicode_width=False
+
+# SSL version defaults to auto
+#
+#ssl_version=None

butterfly/escapes.py

@@ -0,0 +1,70 @@
+import sys
+import termios
+import tty
+from contextlib import contextmanager
+
+from butterfly.utils import ansi_colors as colors  # noqa: F401
+
+
+@contextmanager
+def html():
+    sys.stdout.write('\x1bP;HTML|')
+    yield
+    sys.stdout.write('\x1bP')
+    sys.stdout.flush()
+
+
+@contextmanager
+def image(mime='image'):
+    sys.stdout.write('\x1bP;IMAGE|%s;' % mime)
+    yield
+    sys.stdout.write('\x1bP\n')
+    sys.stdout.flush()
+
+
+@contextmanager
+def prompt():
+    sys.stdout.write('\x1bP;PROMPT|')
+    yield
+    sys.stdout.write('\x1bP')
+    sys.stdout.flush()
+
+
+@contextmanager
+def text():
+    sys.stdout.write('\x1bP;TEXT|')
+    yield
+    sys.stdout.write('\x1bP')
+    sys.stdout.flush()
+
+
+def geolocation():
+    sys.stdout.write('\x1b[?99n')
+    sys.stdout.flush()
+
+    fd = sys.stdin.fileno()
+    old_settings = termios.tcgetattr(fd)
+    try:
+        tty.setraw(sys.stdin.fileno())
+        rv = sys.stdin.read(1)
+        if rv != '\x1b':
+            raise
+        rv = sys.stdin.read(1)
+        if rv != '[':
+            raise
+        rv = sys.stdin.read(1)
+        if rv != '?':
+            raise
+
+        loc = ''
+        while rv != 'R':
+            rv = sys.stdin.read(1)
+            if rv != 'R':
+                loc += rv
+    except Exception:
+        return
+    finally:
+        termios.tcsetattr(fd, termios.TCSADRAIN, old_settings)
+    if not loc or ';' not in loc:
+        return
+    return tuple(map(float, loc.split(';')))

butterfly/pam.py

@@ -0,0 +1,192 @@
+# (c) 2007 Chris AtLee <chris@atlee.ca>
+# Licensed under the MIT license:
+# http://www.opensource.org/licenses/mit-license.php
+#
+# Original author: Chris AtLee
+#
+# Modified by David Ford, 2011-12-6
+# added py3 support and encoding
+# added pam_end
+# added pam_setcred to reset credentials after seeing Leon Walker's remarks
+# added byref as well
+# use readline to prestuff the getuser input
+# Modified by Peter Cai, 2017-02-10
+# interactive login for Butterfly
+
+'''
+PAM module for python
+Provides an authenticate function that will allow the caller to authenticate
+a user against the Pluggable Authentication Modules (PAM) on the system.
+Implemented using ctypes, so no compilation is necessary.
+'''
+
+import os
+import sys
+from ctypes import (
+    CDLL, CFUNCTYPE, POINTER, Structure, byref, c_char_p, c_int, c_size_t,
+    c_void_p)
+from ctypes.util import find_library
+
+
+class PamHandle(Structure):
+    """wrapper class for pam_handle_t pointer"""
+    _fields_ = [("handle", c_void_p)]
+
+    def __init__(self):
+        Structure.__init__(self)
+        self.handle = 0
+
+
+class PamMessage(Structure):
+    """wrapper class for pam_message structure"""
+    _fields_ = [("msg_style", c_int), ("msg", c_char_p)]
+
+    def __repr__(self):
+        return "<PamMessage %i '%s'>" % (self.msg_style, self.msg)
+
+
+class PamResponse(Structure):
+    """wrapper class for pam_response structure"""
+    _fields_ = [("resp", c_char_p), ("resp_retcode", c_int)]
+
+    def __repr__(self):
+        return "<PamResponse %i '%s'>" % (self.resp_retcode, self.resp)
+
+
+conv_func = CFUNCTYPE(
+    c_int, c_int, POINTER(POINTER(PamMessage)),
+    POINTER(POINTER(PamResponse)), c_void_p)
+
+
+class PamConv(Structure):
+    """wrapper class for pam_conv structure"""
+    _fields_ = [("conv", conv_func), ("appdata_ptr", c_void_p)]
+
+
+# Various constants
+PAM_PROMPT_ECHO_OFF = 1
+PAM_PROMPT_ECHO_ON = 2
+PAM_ERROR_MSG = 3
+PAM_TEXT_INFO = 4
+PAM_REINITIALIZE_CRED = 8
+
+libc = CDLL(find_library("c"))
+libpam = CDLL(find_library("pam"))
+libpam_misc = CDLL(find_library("pam_misc"))
+
+calloc = libc.calloc
+calloc.restype = c_void_p
+calloc.argtypes = [c_size_t, c_size_t]
+
+pam_end = libpam.pam_end
+pam_end.restype = c_int
+pam_end.argtypes = [PamHandle, c_int]
+
+pam_start = libpam.pam_start
+pam_start.restype = c_int
+pam_start.argtypes = [c_char_p, c_char_p, POINTER(PamConv), POINTER(PamHandle)]
+
+pam_setcred = libpam.pam_setcred
+pam_setcred.restype = c_int
+pam_setcred.argtypes = [PamHandle, c_int]
+
+pam_strerror = libpam.pam_strerror
+pam_strerror.restype = c_char_p
+pam_strerror.argtypes = [PamHandle, c_int]
+
+pam_authenticate = libpam.pam_authenticate
+pam_authenticate.restype = c_int
+pam_authenticate.argtypes = [PamHandle, c_int]
+
+misc_conv = libpam_misc.misc_conv
+
+
+class PAM():
+    code = 0
+    reason = None
+
+    def __init__(self):
+        pass
+
+    def authenticate(
+            self, username,
+            service='login', encoding='utf-8', resetcreds=True):
+        """PAM authentication through standard input for the given service.
+           Returns True for success, or False for failure.
+           self.code (integer) and self.reason (string) are always stored
+           and may be referenced for the reason why authentication failed.
+           0/'Success' will be stored for success.
+           Python3 expects bytes() for ctypes inputs.  This function will make
+           necessary conversions using the supplied encoding.
+        Inputs:
+          username: username to authenticate
+          service:  PAM service to authenticate against, defaults to 'login'
+        Returns:
+          success:  True
+          failure:  False
+        """
+
+        # python3 ctypes prefers bytes
+        if sys.version_info >= (3,):
+            if isinstance(username, str):
+                username = username.encode(encoding)
+            if isinstance(service, str):
+                service = service.encode(encoding)
+        else:
+            if isinstance(username, unicode):  # noqa: F821
+                username = username.encode(encoding)
+            if isinstance(service, unicode):  # noqa: F821
+                service = service.encode(encoding)
+
+        if b'\x00' in username or b'\x00' in service:
+            self.code = 4  # PAM_SYSTEM_ERR in Linux-PAM
+            self.reason = 'strings may not contain NUL'
+            return False
+
+        handle = PamHandle()
+        conv = PamConv(conv_func(misc_conv), 0)
+        retval = pam_start(service, username, byref(conv), byref(handle))
+
+        if retval != 0:
+            # This is not an authentication error,
+            # something has gone wrong starting up PAM
+            self.code = retval
+            self.reason = "pam_start() failed"
+            return False
+
+        retval = pam_authenticate(handle, 0)
+        auth_success = retval == 0
+
+        if auth_success and resetcreds:
+            retval = pam_setcred(handle, PAM_REINITIALIZE_CRED)
+
+        # store information to inform the caller why we failed
+        self.code = retval
+        self.reason = pam_strerror(handle, retval)
+        if sys.version_info >= (3,):
+            self.reason = self.reason.decode(encoding)
+
+        pam_end(handle, retval)
+
+        return auth_success
+
+
+def login_prompt(username, profile, env):
+    pam = PAM()
+
+    success = pam.authenticate(username, profile)
+    print('{} {}'.format(pam.code, pam.reason))
+
+    if success:
+        su = '/usr/bin/su'
+        if not os.path.exists(su):
+            su = '/bin/su'
+        os.execvpe(su, [su, '-l', username], env)
+    return success
+
+
+if __name__ == "__main__":
+    if login_prompt(sys.argv[1], sys.argv[2], os.environ):
+        exit(0)
+    else:
+        exit(1)

butterfly/routes.py

@@ -1,7 +1,7 @@
 # *-* coding: utf-8 *-*
 # This file is part of butterfly
 #
-# butterfly Copyright (C) 2014  Florian Mounier
+# butterfly Copyright(C) 2015-2017 Florian Mounier
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
@@ -16,234 +16,385 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 
-import pty
+import json
 import os
-import io
 import struct
-import fcntl
-import termios
-import tornado.websocket
-import tornado.process
-import tornado.ioloop
-import tornado.options
 import sys
-from butterfly import url, Route, utils
+import time
+from collections import defaultdict
+from mimetypes import guess_type
+from uuid import uuid4
 
-ioloop = tornado.ioloop.IOLoop.instance()
+import tornado.escape
+import tornado.options
+import tornado.process
+import tornado.web
+import tornado.websocket
 
-server = utils.User()
-daemon = utils.User(name='daemon')
+from butterfly import Route, url, utils
+from butterfly.terminal import Terminal
 
 
-def motd(socket, caller, callee):
-    return (
-'''
-B                   `         '
-   ;,,,             `       '             ,,,;
-   `Y888888bo.       :     :       .od888888Y'
-     8888888888b.     :   :     .d8888888888      AWelcome to RbutterflyB
-     88888Y'  `Y8b.   `   '   .d8Y'  `Y88888
-    j88888  R.db.B  Yb. '   ' .dY  R.db.B  88888k     AServer running as G%rB
-      `888  RY88YB    `b ( ) d'    RY88YB  888'
-       888b  R'"B        ,',        R"'B  d888        AConnecting to:B
-      j888888bd8gf"'   ':'   `"?g8bd888888k         AHost: G%sB
-        R'Y'B   .8'     d' 'b     '8.   R'Y'X           AUser: G%rB
-         R!B   .8' RdbB  d'; ;`b  RdbB '8.   R!B
-            d88  R`'B  8 ; ; 8  R`'B  88b             AFrom:B
-           d888b   .g8 ',' 8g.   d888b              AHost: G%sB
-          :888888888Y'     'Y888888888:             AUser: G%rB
-          '! 8888888'       `8888888 !'
-             '8Y  R`Y         Y'B  Y8'
-R              Y                   Y
-              !                   !X
-
-'''
-        .replace('B', '\x1b[34;1m')
-        .replace('G', '\x1b[32;1m')
-        .replace('R', '\x1b[37;1m')
-        .replace('A', '\x1b[37;0m')
-        .replace('X', '\x1b[0m')
-        .replace('\n', '\r\n')
-        % (
-            server,
-            '%s:%d' % (socket.remote_addr, socket.remote_port),
-            callee,
-            '%s:%d' % (socket.local_addr, socket.local_port),
-            caller or '?'))
+def u(s):
+    if sys.version_info[0] == 2:
+        return s.decode('utf-8')
+    return s
 
 
-@url(r'/(?:user/(.+))?/?(?:wd/(.+))?')
+@url(r'/(?:session/(?P<session>[^/]+)/?)?')
 class Index(Route):
-    def get(self, user, path):
-        return self.render('index.html')
+    def get(self, session):
+        user = self.request.query_arguments.get(
+            'user', [b''])[0].decode('utf-8')
+        if not tornado.options.options.unsecure and user:
+            raise tornado.web.HTTPError(400)
+        return self.render(
+            'index.html', session=session or str(uuid4()))
 
 
-@url(r'/ws(?:/user/([^/]+))?/?(?:/wd/(.+))?')
-class TermWebSocket(Route, tornado.websocket.WebSocketHandler):
-
-    def pty(self):
-        self.pid, self.fd = pty.fork()
-        if self.pid == 0:
-            try:
-                os.closerange(3, 256)
-            except:
-                pass
-            self.shell()
-        else:
-            self.communicate()
-
-    def shell(self):
-        while self.callee is None:
-            user = input('login: ')
-            try:
-                self.callee = utils.User(name=user)
-            except:
-                print('User %s not found' % user)
+@url(r'/theme/([^/]+)/style.css')
+class Theme(Route):
 
+    def get(self, theme):
+        self.log.info('Getting style')
         try:
-            os.chdir(self.path or self.callee.dir)
-        except:
-            pass
+            import sass
+            sass.CompileError
+        except Exception:
+            self.log.error(
+                'You must install libsass to use sass '
+                '(pip install libsass)')
+            return
+        base_dir = self.get_theme_dir(theme)
 
-        env = os.environ
-        env.update(self.socket.env)
+        style = None
+        for ext in ['css', 'scss', 'sass']:
+            probable_style = os.path.join(base_dir, 'style.%s' % ext)
+            if os.path.exists(probable_style):
+                style = probable_style
 
-        env["TERM"] = "xterm-256color"
-        env["COLORTERM"] = "butterfly"
-        env["HOME"] = self.callee.dir
-        env["SHELL"] = self.callee.shell
-        env["LOCATION"] = "http://%s:%d/" % (
-            tornado.options.options.host, tornado.options.options.port)
-        env["PATH"] = '%s:%s' % (os.path.abspath(os.path.join(
-            os.path.dirname(__file__), '..', 'bin')), env.get("PATH"))
-        args = ['butterfly']
+        if not style:
+            raise tornado.web.HTTPError(404)
 
-        if self.socket.local:
-            # All users are the same -> launch shell
-            if self.caller == self.callee and server == self.callee:
-                args.append('-i')
-                os.execvpe(
-                    tornado.options.options.shell or self.callee.shell,
-                    args, env)
-                # This process has been replaced
-                return
+        sass_path = os.path.join(
+            os.path.dirname(__file__), 'sass')
 
-            if server.root:
-                if self.callee != self.caller:
-                    # Force password prompt by dropping rights
-                    # to the daemon user
-                    os.setuid(daemon.uid)
-        else:
-            # We are not local so we should always get a password prompt
-            if server.root:
-                if self.callee == daemon:
-                    # No logging from daemon
-                    sys.exit(1)
-                os.setuid(daemon.uid)
+        css = None
+        try:
+            css = sass.compile(filename=style, include_paths=[
+                base_dir, sass_path])
+        except sass.CompileError:
+            self.log.error(
+                'Unable to compile style (filename: %s, paths: %r) ' % (
+                    style, [base_dir, sass_path]), exc_info=True)
+            if not style:
+                raise tornado.web.HTTPError(500)
 
-        args.append('-p')
-        if tornado.options.options.shell:
-            args.append('-s')
-            args.append(tornado.options.options.shell)
-        args.append(self.callee.name)
-        os.execvpe('/bin/su', args, env)
+        self.log.debug('Style ok')
+        self.set_header("Content-Type", "text/css")
+        self.write(css)
+        self.finish()
 
-    def communicate(self):
-        self.log.debug('Adding handler')
-        fcntl.fcntl(self.fd, fcntl.F_SETFL, os.O_NONBLOCK)
 
-        def utf8_error(e):
-            self.log.error(e)
+@url(r'/theme/([^/]+)/(.+)')
+class ThemeStatic(Route):
+    def get(self, theme, name):
+        if '..' in name:
+            raise tornado.web.HTTPError(403)
 
-        self.reader = io.open(
-            self.fd,
-            'rb',
-            buffering=0,
-            closefd=False
-        )
-        self.writer = io.open(
-            self.fd,
-            'wt',
-            encoding='utf-8',
-            closefd=False
-        )
-        ioloop.add_handler(
-            self.fd, self.shell_handler, ioloop.READ | ioloop.ERROR)
+        base_dir = self.get_theme_dir(theme)
 
-    def open(self, user, path):
-        self.socket = utils.Socket(self.ws_connection.stream.socket)
-        self.set_nodelay(True)
-        self.log.info('Websocket opened %r' % self.socket)
-        self.path = path
-        self.user = user.decode('utf-8') if user else None
-        self.caller = self.callee = None
-        if self.socket.local:
-            self.caller = utils.User(uid=self.socket.uid)
-        else:
-            # We don't know uid is on the other machine
-            pass
+        fn = os.path.normpath(os.path.join(base_dir, name))
+        if not fn.startswith(base_dir):
+            raise tornado.web.HTTPError(403)
 
-        if self.user:
-            try:
-                self.callee = utils.User(name=self.user)
-            except LookupError:
-                print('User %s not found' % self.user)
-                self.callee = None
+        if os.path.exists(fn):
+            type = guess_type(fn)[0]
+            if type is None:
+                # Fallback if there's no mimetypes on the system
+                type = {
+                    'png': 'image/png',
+                    'jpg': 'image/jpeg',
+                    'jpeg': 'image/jpeg',
+                    'gif': 'image/gif',
+                    'woff': 'application/font-woff',
+                    'ttf': 'application/x-font-ttf'
+                }.get(fn.split('.')[-1], 'text/plain')
 
-        # If no user where given and we are local, keep the same user
-        # as the one who opened the socket
-        # ie: the one openning a terminal in borwser
-        if not self.callee and not self.user and self.socket.local:
-            self.callee = self.caller
-        self.write_message(motd(self.socket, self.caller, self.callee))
-        self.pty()
+            self.set_header("Content-Type", type)
+            with open(fn, 'rb') as s:
+                while True:
+                    data = s.read(16384)
+                    if data:
+                        self.write(data)
+                    else:
+                        break
+            self.finish()
+        raise tornado.web.HTTPError(404)
 
-    def on_message(self, message):
-        if message[0] == 'R':
-            cols, rows = map(int, message[1:].split(','))
-            s = struct.pack("HHHH", rows, cols, 0, 0)
-            fcntl.ioctl(self.fd, termios.TIOCSWINSZ, s)
-            self.log.info('SIZE (%d, %d)' % (cols, rows))
-        elif message[0] == 'S':
-            self.log.info('WRIT<%r' % message)
-            self.writer.write(message[1:])
-            self.writer.flush()
 
-    def shell_handler(self, fd, events):
-        if events & ioloop.READ:
-            try:
-                read = self.reader.read()
-            except IOError:
-                self.log.info('READ>%r' % read)
-                self.write_message('DIE')
-                return
+class KeptAliveWebSocketHandler(tornado.websocket.WebSocketHandler):
+    keepalive_timer = None
 
-            self.log.info('READ>%r' % read)
-            self.write_message(read.decode('utf-8', 'replace'))
+    def open(self, *args, **kwargs):
+        self.keepalive_timer = tornado.ioloop.PeriodicCallback(
+            self.send_ping, tornado.options.options.keepalive_interval * 1000)
+        self.keepalive_timer.start()
 
-        if events & ioloop.ERROR:
-            self.log.info('Closing due to ioloop fd handler error')
-            ioloop.remove_handler(self.fd)
-
-            # Terminated
-            self.on_close()
-            self.close()
+    def send_ping(self):
+        t = int(time.time())
+        frame = struct.pack('<I', t)  # A ping frame based on time
+        self.log.info("Sending ping frame %s" % t)
+        try:
+            self.ping(frame)
+        except tornado.websocket.WebSocketClosedError:
+            self.keepalive_timer.stop()
 
     def on_close(self):
-        if self.pid == 0:
-            self.log.warning('pid is 0')
+        if self.keepalive_timer is not None:
+            self.keepalive_timer.stop()
+
+
+@url(r'/ctl/session/(?P<session>[^/]+)')
+class TermCtlWebSocket(Route, KeptAliveWebSocketHandler):
+    sessions = defaultdict(list)
+    sessions_secure_users = {}
+
+    def open(self, session):
+        super(TermCtlWebSocket, self).open(session)
+        self.session = session
+        self.closed = False
+        self.log.info('Websocket /ctl opened %r' % self)
+
+    def create_terminal(self):
+        socket = utils.Socket(self.ws_connection.stream.socket)
+        user = self.request.query_arguments.get(
+            'user', [b''])[0].decode('utf-8')
+        path = self.request.query_arguments.get(
+            'path', [b''])[0].decode('utf-8')
+        secure_user = None
+
+        if not tornado.options.options.unsecure:
+            user = utils.parse_cert(
+                self.ws_connection.stream.socket.getpeercert())
+            assert user, 'No user in certificate'
+            try:
+                user = utils.User(name=user)
+            except LookupError:
+                raise Exception('Invalid user in certificate')
+
+            # Certificate authed user
+            secure_user = user
+
+        elif socket.local and socket.user == utils.User() and not user:
+            # Local to local returning browser user
+            secure_user = socket.user
+        elif user:
+            try:
+                user = utils.User(name=user)
+            except LookupError:
+                raise Exception('Invalid user')
+
+        if secure_user:
+            user = secure_user
+            if self.session in self.sessions and self.session in (
+                    self.sessions_secure_users):
+                if user.name != self.sessions_secure_users[self.session]:
+                    # Restrict to authorized users
+                    raise tornado.web.HTTPError(403)
+            else:
+                self.sessions_secure_users[self.session] = user.name
+
+        self.sessions[self.session].append(self)
+
+        terminal = Terminal.sessions.get(self.session)
+        # Handling terminal session
+        if terminal:
+            TermWebSocket.last.write_message(terminal.history)
+            # And returning, we don't want another terminal
             return
-        try:
-            self.writer.write('')
-            self.writer.flush()
-        except OSError:
-            self.log.warning('closing term fail', exc_info=True)
-        try:
-            os.close(self.fd)
-        except OSError:
-            self.log.warning('closing fd fail', exc_info=True)
-        try:
-            os.waitpid(self.pid, 0)
-        except OSError:
-            self.log.warning('waitpid fail', exc_info=True)
-        self.log.info('Websocket closed')
+
+        # New session, opening terminal
+        terminal = Terminal(
+            user, path, self.session, socket,
+            self.request.full_url().replace('/ctl/', '/'), self.render_string,
+            TermWebSocket.broadcast)
+
+        terminal.pty()
+        self.log.info('Openning session %s for secure user %r' % (
+            self.session, user))
+
+    @classmethod
+    def broadcast(cls, session, message, emitter=None):
+        for wsocket in cls.sessions[session]:
+            try:
+                if wsocket != emitter:
+                    wsocket.write_message(message)
+            except Exception:
+                wsocket.log.exception('Error on broadcast')
+                wsocket.close()
+
+    def on_message(self, message):
+        cmd = json.loads(message)
+        if cmd['cmd'] == 'open':
+            self.create_terminal()
+        else:
+            try:
+                Terminal.sessions[self.session].ctl(cmd)
+            except Exception:
+                # FF strange bug
+                pass
+        self.broadcast(self.session, message, self)
+
+    def on_close(self):
+        super(TermCtlWebSocket, self).on_close()
+        if self.closed:
+            return
+        self.closed = True
+        self.log.info('Websocket /ctl closed %r' % self)
+        if self in self.sessions[self.session]:
+            self.sessions[self.session].remove(self)
+
+        if tornado.options.options.one_shot or (
+                getattr(self.application, 'systemd', False) and
+                not sum([
+                    len(wsockets)
+                    for session, wsockets in self.sessions.items()])):
+            sys.exit(0)
+
+
+@url(r'/ws/session/(?P<session>[^/]+)')
+class TermWebSocket(Route, KeptAliveWebSocketHandler):
+    # List of websockets per session
+    sessions = defaultdict(list)
+
+    # Last is kept for session shared history send
+    last = None
+
+    # Session history
+    history = {}
+
+    def open(self, session):
+        super(TermWebSocket, self).open(session)
+        self.set_nodelay(True)
+        self.session = session
+        self.closed = False
+        self.sessions[session].append(self)
+        self.__class__.last = self
+        self.log.info('Websocket /ws opened %r' % self)
+
+    @classmethod
+    def close_session(cls, session):
+        wsockets = (cls.sessions.get(session, []) +
+                    TermCtlWebSocket.sessions.get(session, []))
+        for wsocket in wsockets:
+            wsocket.on_close()
+
+            wsocket.close()
+
+        if session in cls.sessions:
+            del cls.sessions[session]
+        if session in TermCtlWebSocket.sessions_secure_users:
+            del TermCtlWebSocket.sessions_secure_users[session]
+        if session in TermCtlWebSocket.sessions:
+            del TermCtlWebSocket.sessions[session]
+
+    @classmethod
+    def broadcast(cls, session, message, emitter=None):
+        if message is None:
+            cls.close_session(session)
+            return
+
+        wsockets = cls.sessions.get(session)
+        for wsocket in wsockets:
+            try:
+                if wsocket != emitter:
+                    wsocket.write_message(message)
+            except Exception:
+                wsocket.log.exception('Error on broadcast')
+                wsocket.close()
+
+    def on_message(self, message):
+        Terminal.sessions[self.session].write(message)
+
+    def on_close(self):
+        super(TermWebSocket, self).on_close()
+        if self.closed:
+            return
+        self.closed = True
+        self.log.info('Websocket /ws closed %r' % self)
+        self.sessions[self.session].remove(self)
+
+
+@url(r'/sessions/list.json')
+class SessionsList(Route):
+    """Get the theme list"""
+
+    def get(self):
+        if tornado.options.options.unsecure:
+            raise tornado.web.HTTPError(403)
+
+        cert = self.request.get_ssl_certificate()
+        user = utils.parse_cert(cert)
+
+        if not user:
+            raise tornado.web.HTTPError(403)
+
+        self.set_header('Content-Type', 'application/json')
+        self.write(tornado.escape.json_encode({
+            'sessions': sorted(
+                TermWebSocket.sessions),
+            'user': user
+        }))
+
+
+@url(r'/themes/list.json')
+class ThemesList(Route):
+    """Get the theme list"""
+
+    def get(self):
+
+        if os.path.exists(self.themes_dir):
+            themes = [
+                theme
+                for theme in os.listdir(self.themes_dir)
+                if os.path.isdir(os.path.join(self.themes_dir, theme)) and
+                not theme.startswith('.')]
+        else:
+            themes = []
+
+        if os.path.exists(self.builtin_themes_dir):
+            builtin_themes = [
+                'built-in-%s' % theme
+                for theme in os.listdir(self.builtin_themes_dir)
+                if os.path.isdir(os.path.join(
+                    self.builtin_themes_dir, theme)) and
+                not theme.startswith('.')]
+        else:
+            builtin_themes = []
+
+        self.set_header('Content-Type', 'application/json')
+        self.write(tornado.escape.json_encode({
+            'themes': sorted(themes),
+            'builtin_themes': sorted(builtin_themes),
+            'dir': self.themes_dir
+        }))
+
+
+@url('/local.js')
+class LocalJsStatic(Route):
+    def get(self):
+        self.set_header("Content-Type", 'application/javascript')
+        if os.path.exists(self.local_js_dir):
+            for fn in os.listdir(self.local_js_dir):
+                if not fn.endswith('.js'):
+                    continue
+                with open(os.path.join(self.local_js_dir, fn), 'rb') as s:
+                    while True:
+                        data = s.read(16384)
+                        if data:
+                            self.write(data)
+                        else:
+                            self.write(';')
+                            break
+        self.finish()

butterfly/sass/_16_colors.sass

@@ -0,0 +1,36 @@
+/* *-* coding: utf-8 *-* */
+/* This file is part of butterfly */
+
+/* butterfly Copyright(C) 2015-2017 Florian Mounier */
+/* This program is free software: you can redistribute it and/or modify */
+/* it under the terms of the GNU General Public License as published by */
+/* the Free Software Foundation, either version 3 of the License, or */
+/* (at your option) any later version. */
+
+/* This program is distributed in the hope that it will be useful, */
+/* but WITHOUT ANY WARRANTY; without even the implied warranty of */
+/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the */
+/* GNU General Public License for more details. */
+
+/* You should have received a copy of the GNU General Public License */
+/* along with this program.  If not, see <http://www.gnu.org/licenses/>. */
+
+
+/* Here are the 16 "normal" colors for theming */
+
++termcolor(0,  nth($colors, 1))
++termcolor(1,  nth($colors, 2))
++termcolor(2,  nth($colors, 3))
++termcolor(3,  nth($colors, 4))
++termcolor(4,  nth($colors, 5))
++termcolor(5,  nth($colors, 6))
++termcolor(6,  nth($colors, 7))
++termcolor(7,  nth($colors, 8))
++termcolor(8,  nth($colors, 9))
++termcolor(9,  nth($colors, 10))
++termcolor(10, nth($colors, 11))
++termcolor(11, nth($colors, 12))
++termcolor(12, nth($colors, 13))
++termcolor(13, nth($colors, 14))
++termcolor(14, nth($colors, 15))
++termcolor(15, nth($colors, 16))

butterfly/sass/_256_colors.sass

@@ -0,0 +1,34 @@
+/* *-* coding: utf-8 *-* */
+/* This file is part of butterfly */
+
+/* butterfly Copyright(C) 2015-2017 Florian Mounier */
+/* This program is free software: you can redistribute it and/or modify */
+/* it under the terms of the GNU General Public License as published by */
+/* the Free Software Foundation, either version 3 of the License, or */
+/* (at your option) any later version. */
+
+/* This program is distributed in the hope that it will be useful, */
+/* but WITHOUT ANY WARRANTY; without even the implied warranty of */
+/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the */
+/* GNU General Public License for more details. */
+
+/* You should have received a copy of the GNU General Public License */
+/* along with this program.  If not, see <http://www.gnu.org/licenses/>. */
+
+/* Here are the 240 xterm colors */
+/* See http://upload.wikimedia.org/wikipedia/en/1/15/Xterm_256color_chart.svg */
+
+$st: 00, 95, 135, 175, 215, 255
+
+@for $i from 0 through 215
+  $r: nth($st, 1 + floor(($i / 36) % 6))
+  $g: nth($st, 1 + floor(($i / 6) % 6))
+  $b: nth($st, 1 + $i % 6)
+  +termcolor($i + 16, rgb($r, $g, $b))
+
+@for $i from 0 through 23
+  $l: 8 + $i * 10
+  +termcolor($i + 232, rgb($l, $l, $l))
+
++termcolor(256, $default-bg)
++termcolor(257, $default-fg)

butterfly/sass/_all_fx.sass

@@ -0,0 +1,6 @@
+body
+  &.copied
+    transform: scale(1.05)
+
+  &.pasted
+    transform: scale(.95)

butterfly/sass/_colors.sass

@@ -0,0 +1,33 @@
+/* *-* coding: utf-8 *-* */
+/* This file is part of butterfly */
+
+/* butterfly Copyright(C) 2015-2017 Florian Mounier */
+/* This program is free software: you can redistribute it and/or modify */
+/* it under the terms of the GNU General Public License as published by */
+/* the Free Software Foundation, either version 3 of the License, or */
+/* (at your option) any later version. */
+
+/* This program is distributed in the hope that it will be useful, */
+/* but WITHOUT ANY WARRANTY; without even the implied warranty of */
+/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the */
+/* GNU General Public License for more details. */
+
+/* You should have received a copy of the GNU General Public License */
+/* along with this program.  If not, see <http://www.gnu.org/licenses/>. */
+
+=termcolor($i, $color)
+  .bg-color-#{$i}
+    background-color: $color
+    &.reverse-video
+      @if $color == transparent
+        color: $reverse-transparent !important
+      @else
+        color: $color !important
+
+  .fg-color-#{$i}
+    color: $color
+    &.reverse-video
+      background-color: $color !important
+
+    @if $shadow != 0
+      text-shadow: 0 0 $shadow rgba($color, $shadow-alpha)

butterfly/sass/_cursor.sass

@@ -0,0 +1,22 @@
+/* *-* coding: utf-8 *-* */
+/* This file is part of butterfly */
+
+/* butterfly Copyright(C) 2015-2017 Florian Mounier */
+/* This program is free software: you can redistribute it and/or modify */
+/* it under the terms of the GNU General Public License as published by */
+/* the Free Software Foundation, either version 3 of the License, or */
+/* (at your option) any later version. */
+
+/* This program is distributed in the hope that it will be useful, */
+/* but WITHOUT ANY WARRANTY; without even the implied warranty of */
+/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the */
+/* GNU General Public License for more details. */
+
+/* You should have received a copy of the GNU General Public License */
+/* along with this program.  If not, see <http://www.gnu.org/licenses/>. */
+
+.focus .cursor
+  transition: 300ms
+
+.cursor.reverse-video
+  box-shadow: 0 0 $shadow-alpha $fg

butterfly/sass/_font.sass

@@ -0,0 +1,32 @@
+/* *-* coding: utf-8 *-* */
+/* This file is part of butterfly */
+
+/* butterfly Copyright(C) 2015-2017 Florian Mounier */
+/* This program is free software: you can redistribute it and/or modify */
+/* it under the terms of the GNU General Public License as published by */
+/* the Free Software Foundation, either version 3 of the License, or */
+/* (at your option) any later version. */
+
+/* This program is distributed in the hope that it will be useful, */
+/* but WITHOUT ANY WARRANTY; without even the implied warranty of */
+/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the */
+/* GNU General Public License for more details. */
+
+/* You should have received a copy of the GNU General Public License */
+/* along with this program.  If not, see <http://www.gnu.org/licenses/>. */
+
+$weights: (ExtraLight 100) (Light 300) (Regular 400) (Medium 500) (Semibold 600) (Bold 700) (Black 900)
+
+@if $font-family == "SourceCodePro"
+  @each $weight in $weights
+    $weight_name: nth($weight, 1)
+
+    @font-face
+      font-family: "SourceCodePro"
+      src: url("fonts/SourceCodePro-#{$weight_name}.otf") format("woff")
+      font-weight: nth($weight, 2)
+
+body
+  font-family: $font-family
+  font-size: $font-size
+  line-height: $font-line-height

butterfly/sass/_layout.sass

@@ -0,0 +1,112 @@
+/* *-* coding: utf-8 *-* */
+/* This file is part of butterfly */
+
+/* butterfly Copyright(C) 2015-2017 Florian Mounier */
+/* This program is free software: you can redistribute it and/or modify */
+/* it under the terms of the GNU General Public License as published by */
+/* the Free Software Foundation, either version 3 of the License, or */
+/* (at your option) any later version. */
+
+/* This program is distributed in the hope that it will be useful, */
+/* but WITHOUT ANY WARRANTY; without even the implied warranty of */
+/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the */
+/* GNU General Public License for more details. */
+
+/* You should have received a copy of the GNU General Public License */
+/* along with this program.  If not, see <http://www.gnu.org/licenses/>. */
+
+html, body
+  margin: 0
+  padding: 0
+  background-color: $bg
+  color: $fg
+
+body
+  padding-bottom: .5em
+  white-space: nowrap
+  overflow-x: hidden
+  overflow-y: scroll
+  a
+    text-decoration: underline rgba($fg, .2)
+    transition: text-decoration-color 500ms
+    &:hover
+      text-decoration: underline
+
+  .line.active
+    background-color: $active-bg
+
+  .line.extended
+    cursor: zoom-in
+    background-image: linear-gradient(90deg, rgba(darken($bg, 3%), 0), 95%, darken($bg, 3%))
+
+    .extra
+      display: none
+
+    &:not(.expanded):hover
+      background-color: lighten($bg, 2%)
+
+    &.expanded
+      cursor: zoom-out
+      background-color: darken($bg, 3%)
+
+      .extra
+        display: block
+        white-space: pre-wrap
+        word-break: break-all
+
+  &::-webkit-scrollbar
+    background: $scroll-bg
+    width: $scroll-width
+
+  &::-webkit-scrollbar-thumb
+    background: $scroll-fg
+
+  &::-webkit-scrollbar-thumb:hover
+    background: $scroll-fg-hover
+
+  /* Pop ups */
+  .hidden
+    display: none !important
+
+  #popup
+    position: fixed
+    display: flex
+    align-items: center
+    justify-content: center
+    width: 100%
+    height: 100%
+
+    form, > div
+      padding: 1.5em
+      background: $popup-bg
+      color: $popup-fg
+      font-size: $popup-fs
+
+      h2
+        margin: 0 .5em .5em .5em
+      select
+        min-width: 300px
+        padding: .5em
+        width: 100%
+      label
+        display: block
+        padding: .5em
+        font-size: .75em
+
+  #input-view
+    position: fixed
+    z-index: 100
+    padding: 0
+    margin: 0
+    text-decoration: underline
+
+  #input-helper
+    position: fixed
+    z-index: -100
+    opacity: 0
+    white-space: nowrap
+    overflow: hidden
+    resize: none
+
+.terminal
+  outline: none

butterfly/sass/_light_fx.sass

@@ -0,0 +1,60 @@
+/* *-* coding: utf-8 *-* */
+/* This file is part of butterfly */
+
+/* butterfly Copyright(C) 2015-2017 Florian Mounier */
+/* This program is free software: you can redistribute it and/or modify */
+/* it under the terms of the GNU General Public License as published by */
+/* the Free Software Foundation, either version 3 of the License, or */
+/* (at your option) any later version. */
+
+/* This program is distributed in the hope that it will be useful, */
+/* but WITHOUT ANY WARRANTY; without even the implied warranty of */
+/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the */
+/* GNU General Public License for more details. */
+
+/* You should have received a copy of the GNU General Public License */
+/* along with this program.  If not, see <http://www.gnu.org/licenses/>. */
+
+body
+  transition: filter 200ms
+  transform-origin: bottom
+
+  &.bell
+    filter: blur(2px)
+
+  &.skip
+    filter: sepia(1)
+
+  &.selection
+    filter: saturate(2)
+
+  &.alarm
+    filter: hue-rotate(150deg)
+
+  &.dead
+    filter: grayscale(1)
+
+    &:after
+      content: "CLOSED"
+      font-size: 15em
+      display: flex
+      justify-content: center
+      align-items: center
+      position: fixed
+      top: 0
+      left: 0
+      width: 100%
+      height: 100%
+      transform: rotate(-45deg)
+      opacity: .2
+      font-weight: 900
+
+  &.stopped
+    filter: brightness(50%)
+
+  &.locked
+    &::-webkit-scrollbar-thumb
+      background: rgba(red, .7)
+
+    &::-webkit-scrollbar-thumb:hover
+      background: rgba(red, .8)

butterfly/sass/_styles.sass

@@ -0,0 +1,38 @@
+/* *-* coding: utf-8 *-* */
+/* This file is part of butterfly */
+
+/* butterfly Copyright(C) 2015-2017 Florian Mounier */
+/* This program is free software: you can redistribute it and/or modify */
+/* it under the terms of the GNU General Public License as published by */
+/* the Free Software Foundation, either version 3 of the License, or */
+/* (at your option) any later version. */
+
+/* This program is distributed in the hope that it will be useful, */
+/* but WITHOUT ANY WARRANTY; without even the implied warranty of */
+/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the */
+/* GNU General Public License for more details. */
+
+/* You should have received a copy of the GNU General Public License */
+/* along with this program.  If not, see <http://www.gnu.org/licenses/>. */
+
+/* Theses are the various imported style files
+/* THIS NEEDS the python `libsass` library to be installed.
+/* You can copy the imported files in the theme dir, they will be imported prioritarily.
+
+/* You can change this file to import any webfont:
+@import font
+
+/* You can comment / uncomment the following to enable/disable terminal effects.
+@import light_fx
+/* Comment this one to remove the blurry text:
+@import text_fx
+/* @import all_fx
+
+@import colors
+/* The color theme is defined in this one:
+@import 16_colors
+@import 256_colors
+
+@import layout
+@import cursor
+@import term_styles

butterfly/sass/_term_styles.sass

@@ -0,0 +1,73 @@
+/* *-* coding: utf-8 *-* */
+/* This file is part of butterfly */
+
+/* butterfly Copyright(C) 2015-2017 Florian Mounier */
+/* This program is free software: you can redistribute it and/or modify */
+/* it under the terms of the GNU General Public License as published by */
+/* the Free Software Foundation, either version 3 of the License, or */
+/* (at your option) any later version. */
+
+/* This program is distributed in the hope that it will be useful, */
+/* but WITHOUT ANY WARRANTY; without even the implied warranty of */
+/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the */
+/* GNU General Public License for more details. */
+
+/* You should have received a copy of the GNU General Public License */
+/* along with this program.  If not, see <http://www.gnu.org/licenses/>. */
+
+.bold
+  font-weight: bold
+
+.underline
+  text-decoration: underline
+
+.italic
+  font-style: italic
+
+.faint
+  opacity: .6
+
+.crossed
+  text-decoration: line-through
+
+/* Not supported, emulated
+/* .blink
+/*   text-decoration: blink
+.blink
+  animation: blink 1s ease-in-out infinite
+
+.blink-fast
+  animation: blink 250ms ease-in-out infinite
+
+@keyframes blink
+  0%
+    opacity: 1
+  50%
+    opacity: 0
+  100%
+    opacity: 1
+
+.invisible
+  visibility: hidden
+
+.reverse-video
+  color: $bg
+  background-color: $fg
+
+.blur .cursor
+  border: 1px solid $fg
+  background: none
+
+.nbsp
+  @extend .underline
+  @extend .fg-color-1
+
+.inline-html
+  overflow: hidden
+
+.inline-image
+  max-width: 100%
+  max-height: 50vh
+
+a
+  color: inherit

butterfly/sass/_text_fx.sass

@@ -0,0 +1,6 @@
+$fg: #fff !default
+$shadow: 6px !default
+$shadow-alpha: .5 !default
+
+body
+  text-shadow: 0 0 $shadow rgba($fg, $shadow-alpha)

butterfly/sass/_variables.sass

@@ -0,0 +1,54 @@
+/* *-* coding: utf-8 *-* */
+/* This file is part of butterfly */
+
+/* butterfly Copyright(C) 2015-2017 Florian Mounier */
+/* This program is free software: you can redistribute it and/or modify */
+/* it under the terms of the GNU General Public License as published by */
+/* the Free Software Foundation, either version 3 of the License, or */
+/* (at your option) any later version. */
+
+/* This program is distributed in the hope that it will be useful, */
+/* but WITHOUT ANY WARRANTY; without even the implied warranty of */
+/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the */
+/* GNU General Public License for more details. */
+
+/* Variables */
+
+/** Font
+$font-family: "SourceCodePro" !default
+$font-size: 1em !default
+$font-line-height: 1.2 !default
+
+/** Colors */
+/* Foreground */
+$fg: #f4ead5 !default
+/* Background */
+$bg: #110f13 !default
+
+$default-bg: transparent !default
+$active-bg: transparent !default
+$default-fg: $fg !default
+
+$reverse-transparent: $bg !default
+
+/* 16 Colors in this orders: Black, Red, Green, Yellow, Blue, Magenta, Cyan, White, Bright Black, Bright Red, Bright Green, Bright Yellow, Bright Blue, Bright Magenta, Bright Cyan, Bright White */
+$colors: #2e3436, #cc0000, #4e9a06, #c4a000, #3465a4, #75507b, #06989a, #d3d7cf, #555753, #ef2929, #8ae234, #fce94f, #729fcf, #ad7fa8, #34e2e2, #eeeeec !default
+
+/** Text effects */
+
+/* The shadow is the size of the blur (in px for instance)
+$shadow: 0 !default
+/* The shadow alpha is the opacity of the shadow
+$shadow-alpha: 0 !default
+
+/** Scroll */
+$scroll-bg: $bg !default
+$scroll-fg: rgba($fg, .1) !default
+$scroll-fg-hover: rgba($fg, .1) !default
+$scroll-width: .75em !default
+
+/** Popup */
+$popup-bg: rgba(127, 127, 127, .5) !default
+$popup-fg: $fg !default
+$popup-fs: 1em !default
+

butterfly/sass/main.sass

@@ -0,0 +1,26 @@
+/* *-* coding: utf-8 *-* */
+/* This file is part of butterfly */
+
+/* butterfly Copyright(C) 2015-2017 Florian Mounier */
+/* This program is free software: you can redistribute it and/or modify */
+/* it under the terms of the GNU General Public License as published by */
+/* the Free Software Foundation, either version 3 of the License, or */
+/* (at your option) any later version. */
+
+/* This program is distributed in the hope that it will be useful, */
+/* but WITHOUT ANY WARRANTY; without even the implied warranty of */
+/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the */
+/* GNU General Public License for more details. */
+
+/* You should have received a copy of the GNU General Public License */
+/* along with this program.  If not, see <http://www.gnu.org/licenses/>. */
+
+/* Theses are the various imported style files
+/* THIS NEEDS the python `libsass` library to be installed.
+/* You can copy the imported files in the theme dir, they will be imported prioritarily.
+
+/* These a the default variables */
+@import variables
+
+/* These are all imported files */
+@import styles

butterfly/static/coffees/backsel.coffee

@@ -1,41 +0,0 @@
-# *-* coding: utf-8 *-*
-# This file is part of butterfly
-#
-# butterfly Copyright (C) 2014  Florian Mounier
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-state =
-    x: null
-    y: null
-
-document.addEventListener 'keydown', (e) ->
-    if e.shiftKey and (37 <= e.keyCode <= 40)
-        if state.y == null
-            state.y = term.ybase + term.y
-        if e.keyCode == 38
-            state.y--
-            if state.y < term.ybase
-                state.y = term.ybase
-        else if e.keyCode == 40
-            state.y++
-            if state.y > term.ybase + term.y
-                state.y = term.ybase + term.y
-
-        term.emit('data', ' \x0b\x15')
-        if state.y != term.ybase + term.y
-            term.emit('data', term.grabText(0, term.cols - 1, state.y, state.y).replace('\n', ''))
-        e.stopPropagation()
-        return false
-    else
-        state.x = state.y = null

butterfly/static/coffees/main.coffee

@@ -1,79 +0,0 @@
-# *-* coding: utf-8 *-*
-# This file is part of butterfly
-#
-# butterfly Copyright (C) 2014  Florian Mounier
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-cols = rows = null
-quit = false
-
-$ = document.querySelectorAll.bind(document)
-
-send = (data) ->
-    ws.send 'S' + data
-
-ctl = (type, args...) ->
-    params = args.join(',')
-    if type == 'Resize'
-        ws.send 'R' + params
-
-ws_url = 'ws://' + document.location.host + '/ws' + location.pathname
-ws = new WebSocket ws_url
-
-ws.addEventListener 'open', ->
-    console.log "WebSocket open", arguments
-    ws.send 'R' + term.cols + ',' + term.rows
-    if location.hash
-        setTimeout ->
-            ws.send 'S' + location.hash.slice(1) + '\n'
-        , 100
-
-ws.addEventListener 'error', ->
-    console.log "WebSocket error", arguments
-
-ws.addEventListener 'message', (e) ->
-    setTimeout ->
-        term.write e.data
-    , 1
-
-ws.addEventListener 'close', ->
-    console.log "WebSocket closed", arguments
-    quit = true
-    open('','_self').close()
-
-
-term = new Terminal $('#wrapper')[0], send, ctl
-addEventListener 'beforeunload', ->
-    if not quit
-        'This will exit the terminal session'
-
-bench = (n=100000000) ->
-    rnd = ''
-    while rnd.length < n
-        rnd += Math.random().toString(36).substring(2)
-
-    t0 = (new Date()).getTime()
-    term.write rnd
-    console.log "#{n} chars in #{(new Date()).getTime() - t0} ms"
-
-
-cbench = (n=100000000) ->
-    rnd = ''
-    while rnd.length < n
-        rnd += "\x1b[#{30 + parseInt(Math.random() * 20)}m"
-        rnd += Math.random().toString(36).substring(2)
-
-    t0 = (new Date()).getTime()
-    term.write rnd
-    console.log "#{n} chars + colors in #{(new Date()).getTime() - t0} ms"

butterfly/static/coffees/virtual_input.coffee

@@ -1,79 +0,0 @@
-# *-* coding: utf-8 *-*
-# This file is part of butterfly
-#
-# butterfly Copyright (C) 2014  Florian Mounier
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-
-if /Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test navigator.userAgent
-    ctrl = false
-    alt = false
-    first = true
-    virtual_input = document.createElement 'input'
-    virtual_input.type = 'password'
-    virtual_input.style.position = 'fixed'
-    virtual_input.style.top = 0
-    virtual_input.style.left = 0
-    virtual_input.style.border = 'none'
-    virtual_input.style.outline = 'none'
-    virtual_input.style.opacity = 0
-    virtual_input.value = '0'
-    document.body.appendChild virtual_input
-
-    virtual_input.addEventListener 'blur', ->
-        setTimeout((=> @focus()), 10)
-
-    addEventListener 'click', ->
-        virtual_input.focus()
-
-    addEventListener 'touchstart', (e) ->
-        if e.touches.length == 1
-            ctrl = true
-        else if e.touches.length == 2
-            ctrl = false
-            alt = true
-        else if e.touches.length == 3
-            ctrl = true
-            alt = true
-
-    virtual_input.addEventListener 'keydown', (e) ->
-         term.keyDown(e)
-         return true
-
-    virtual_input.addEventListener 'input', (e) ->
-        len = @value.length
-
-        if len == 0
-            e.keyCode = 8
-            term.keyDown e
-            @value = '0'
-            return true
-
-        e.keyCode = @value.charAt(1).charCodeAt(0)
-
-        if (ctrl or alt) and not first
-            e.keyCode = @value.charAt(1).charCodeAt(0)
-            e.ctrlKey = ctrl
-            e.altKey = alt
-            if e.keyCode >= 97 && e.keyCode <= 122
-                e.keyCode -= 32
-            term.keyDown e
-            @value = '0'
-            ctrl = alt = false
-            return true
-
-        term.keyPress e
-        first = false
-        @value = '0'
-        true

butterfly/static/ext.js

@@ -0,0 +1,813 @@
+(function() {
+  var Popup, Selection, _set_theme_href, _theme, alt, cancel, clean_ansi, copy, ctrl, escape, histSize, linkify, maybePack, nextLeaf, packSize, popup, previousLeaf, selection, setAlarm, tags, tid, walk,
+    indexOf = [].indexOf || function(item) { for (var i = 0, l = this.length; i < l; i++) { if (i in this && this[i] === item) return i; } return -1; };
+
+  clean_ansi = function(data) {
+    var c, i, out, state;
+    if (data.indexOf('\x1b') < 0) {
+      return data;
+    }
+    i = -1;
+    out = '';
+    state = 'normal';
+    while (i < data.length - 1) {
+      c = data.charAt(++i);
+      switch (state) {
+        case 'normal':
+          if (c === '\x1b') {
+            state = 'escaped';
+            break;
+          }
+          out += c;
+          break;
+        case 'escaped':
+          if (c === '[') {
+            state = 'csi';
+            break;
+          }
+          if (c === ']') {
+            state = 'osc';
+            break;
+          }
+          if ('#()%*+-./'.indexOf(c) >= 0) {
+            i++;
+          }
+          state = 'normal';
+          break;
+        case 'csi':
+          if ("?>!$\" '".indexOf(c) >= 0) {
+            break;
+          }
+          if (('0' <= c && c <= '9')) {
+            break;
+          }
+          if (c === ';') {
+            break;
+          }
+          state = 'normal';
+          break;
+        case 'osc':
+          if (c === "\x1b" || c === "\x07") {
+            if (c === "\x1b") {
+              i++;
+            }
+            state = 'normal';
+          }
+      }
+    }
+    return out;
+  };
+
+  setAlarm = function(notification, cond) {
+    var alarm;
+    alarm = function(data) {
+      var message, note, notif;
+      message = clean_ansi(data.data.slice(1));
+      if (cond !== null && !cond.test(message)) {
+        return;
+      }
+      butterfly.body.classList.remove('alarm');
+      note = "Butterfly [" + butterfly.title + "]";
+      if (notification) {
+        notif = new Notification(note, {
+          body: message,
+          icon: '/static/images/favicon.png'
+        });
+        notif.onclick = function() {
+          window.focus();
+          return notif.close();
+        };
+      } else {
+        alert(note + '\n' + message);
+      }
+      return butterfly.ws.shell.removeEventListener('message', alarm);
+    };
+    butterfly.ws.shell.addEventListener('message', alarm);
+    return butterfly.body.classList.add('alarm');
+  };
+
+  cancel = function(ev) {
+    if (ev.preventDefault) {
+      ev.preventDefault();
+    }
+    if (ev.stopPropagation) {
+      ev.stopPropagation();
+    }
+    ev.cancelBubble = true;
+    return false;
+  };
+
+  document.addEventListener('keydown', function(e) {
+    var cond;
+    if (!(e.altKey && e.keyCode === 65)) {
+      return true;
+    }
+    cond = null;
+    if (e.shiftKey) {
+      cond = prompt('Ring alarm when encountering the following text: (can be a regexp)');
+      if (!cond) {
+        return;
+      }
+      cond = new RegExp(cond);
+    }
+    if (Notification && Notification.permission === 'default') {
+      Notification.requestPermission(function() {
+        return setAlarm(Notification.permission === 'granted', cond);
+      });
+    } else {
+      setAlarm(Notification.permission === 'granted', cond);
+    }
+    return cancel(e);
+  });
+
+  addEventListener('copy', copy = function(e) {
+    var data, end, j, len, line, ref, sel;
+    document.getElementsByTagName('body')[0].contentEditable = false;
+    butterfly.bell("copied");
+    e.clipboardData.clearData();
+    sel = getSelection().toString().replace(/\u00A0/g, ' ').replace(/\u2007/g, ' ');
+    data = '';
+    ref = sel.split('\n');
+    for (j = 0, len = ref.length; j < len; j++) {
+      line = ref[j];
+      if (line.slice(-1) === '\u23CE') {
+        end = '';
+        line = line.slice(0, -1);
+      } else {
+        end = '\n';
+      }
+      data += line.replace(/\s*$/, '') + end;
+    }
+    e.clipboardData.setData('text/plain', data.slice(0, -1));
+    return e.preventDefault();
+  });
+
+  addEventListener('paste', function(e) {
+    var data, send, size;
+    document.getElementsByTagName('body')[0].contentEditable = false;
+    butterfly.bell("pasted");
+    data = e.clipboardData.getData('text/plain');
+    data = data.replace(/\r\n/g, '\n').replace(/\n/g, '\r');
+    size = 1024;
+    send = function() {
+      butterfly.send(data.substring(0, size));
+      data = data.substring(size);
+      if (data.length) {
+        return setTimeout(send, 25);
+      }
+    };
+    send();
+    return e.preventDefault();
+  });
+
+  addEventListener('beforeunload', function(e) {
+    if (!(butterfly.body.classList.contains('dead') || location.href.indexOf('session') > -1)) {
+      return e.returnValue = 'This terminal is active and not in session. Are you sure you want to kill it?';
+    }
+  });
+
+  Terminal.on('change', function(line) {
+    if (indexOf.call(line.classList, 'extended') >= 0) {
+      return line.addEventListener('click', (function(line) {
+        return function() {
+          var after, before;
+          if (indexOf.call(line.classList, 'expanded') >= 0) {
+            return line.classList.remove('expanded');
+          } else {
+            before = line.getBoundingClientRect().height;
+            line.classList.add('expanded');
+            after = line.getBoundingClientRect().height;
+            return document.body.scrollTop += after - before;
+          }
+        };
+      })(line));
+    }
+  });
+
+  walk = function(node, callback) {
+    var child, j, len, ref, results;
+    ref = node.childNodes;
+    results = [];
+    for (j = 0, len = ref.length; j < len; j++) {
+      child = ref[j];
+      callback.call(child);
+      results.push(walk(child, callback));
+    }
+    return results;
+  };
+
+  linkify = function(text) {
+    var emailAddressPattern, pseudoUrlPattern, urlPattern;
+    urlPattern = /\b(?:https?|ftp):\/\/[a-z0-9-+&@#\/%?=~_|!:,.;]*[a-z0-9-+&@#\/%=~_|]/gim;
+    pseudoUrlPattern = /(^|[^\/])(www\.[\S]+(\b|$))/gim;
+    emailAddressPattern = /[\w.]+@[a-zA-Z_-]+?(?:\.[a-zA-Z]{2,6})+/gim;
+    return text.replace(urlPattern, '<a href="$&">$&</a>').replace(pseudoUrlPattern, '$1<a href="http://$2">$2</a>').replace(emailAddressPattern, '<a href="mailto:$&">$&</a>');
+  };
+
+  tags = {
+    '&': '&amp;',
+    '<': '&lt;',
+    '>': '&gt;'
+  };
+
+  escape = function(s) {
+    return s.replace(/[&<>]/g, function(tag) {
+      return tags[tag] || tag;
+    });
+  };
+
+  Terminal.on('change', function(line) {
+    return walk(line, function() {
+      var linkified, newNode, val;
+      if (this.nodeType === 3) {
+        val = this.nodeValue;
+        linkified = linkify(escape(val));
+        if (linkified !== val) {
+          newNode = document.createElement('span');
+          newNode.innerHTML = linkified;
+          this.parentElement.replaceChild(newNode, this);
+          return true;
+        }
+      }
+    });
+  });
+
+  ctrl = false;
+
+  alt = false;
+
+  addEventListener('touchstart', function(e) {
+    if (e.touches.length === 2) {
+      return ctrl = true;
+    } else if (e.touches.length === 3) {
+      ctrl = false;
+      return alt = true;
+    } else if (e.touches.length === 4) {
+      ctrl = true;
+      return alt = true;
+    }
+  });
+
+  window.mobileKeydown = function(e) {
+    var _altKey, _ctrlKey, _keyCode;
+    if (ctrl || alt) {
+      _ctrlKey = ctrl;
+      _altKey = alt;
+      _keyCode = e.keyCode;
+      if (e.keyCode >= 97 && e.keyCode <= 122) {
+        _keyCode -= 32;
+      }
+      e = new KeyboardEvent('keydown', {
+        ctrlKey: _ctrlKey,
+        altKey: _altKey,
+        keyCode: _keyCode
+      });
+      ctrl = alt = false;
+      setTimeout(function() {
+        return window.dispatchEvent(e);
+      }, 0);
+      return true;
+    } else {
+      return false;
+    }
+  };
+
+  document.addEventListener('keydown', function(e) {
+    if (!(e.altKey && e.keyCode === 79)) {
+      return true;
+    }
+    open(location.origin);
+    return cancel(e);
+  });
+
+  tid = null;
+
+  packSize = 1000;
+
+  histSize = 100;
+
+  maybePack = function() {
+    var hist, i, j, pack, packfrag, ref;
+    if (!(butterfly.term.childElementCount > packSize + butterfly.rows)) {
+      return;
+    }
+    hist = document.getElementById('packed');
+    packfrag = document.createDocumentFragment('fragment');
+    for (i = j = 0, ref = packSize; 0 <= ref ? j <= ref : j >= ref; i = 0 <= ref ? ++j : --j) {
+      packfrag.appendChild(butterfly.term.firstChild);
+    }
+    pack = document.createElement('div');
+    pack.classList.add('pack');
+    pack.appendChild(packfrag);
+    hist.appendChild(pack);
+    if (hist.childElementCount > histSize) {
+      hist.firstChild.remove();
+    }
+    return tid = setTimeout(maybePack);
+  };
+
+  Terminal.on('refresh', function() {
+    if (tid) {
+      clearTimeout(tid);
+    }
+    return maybePack();
+  });
+
+  Terminal.on('clear', function() {
+    var hist, newHist;
+    newHist = document.createElement('div');
+    newHist.id = 'packed';
+    hist = document.getElementById('packed');
+    return butterfly.body.replaceChild(newHist, hist);
+  });
+
+  Popup = (function() {
+    function Popup() {
+      this.el = document.getElementById('popup');
+      this.bound_click_maybe_close = this.click_maybe_close.bind(this);
+      this.bound_key_maybe_close = this.key_maybe_close.bind(this);
+    }
+
+    Popup.prototype.open = function(html) {
+      this.el.innerHTML = html;
+      this.el.classList.remove('hidden');
+      addEventListener('click', this.bound_click_maybe_close);
+      return addEventListener('keydown', this.bound_key_maybe_close);
+    };
+
+    Popup.prototype.close = function() {
+      removeEventListener('click', this.bound_click_maybe_close);
+      removeEventListener('keydown', this.bound_key_maybe_close);
+      this.el.classList.add('hidden');
+      return this.el.innerHTML = '';
+    };
+
+    Popup.prototype.click_maybe_close = function(e) {
+      var t;
+      t = e.target;
+      while (t.parentElement) {
+        if (Array.prototype.slice.call(this.el.children).indexOf(t) > -1) {
+          return true;
+        }
+        t = t.parentElement;
+      }
+      this.close();
+      return cancel(e);
+    };
+
+    Popup.prototype.key_maybe_close = function(e) {
+      if (e.keyCode !== 27) {
+        return true;
+      }
+      this.close();
+      return cancel(e);
+    };
+
+    return Popup;
+
+  })();
+
+  popup = new Popup();
+
+  selection = null;
+
+  cancel = function(ev) {
+    if (ev.preventDefault) {
+      ev.preventDefault();
+    }
+    if (ev.stopPropagation) {
+      ev.stopPropagation();
+    }
+    ev.cancelBubble = true;
+    return false;
+  };
+
+  previousLeaf = function(node) {
+    var previous;
+    previous = node.previousSibling;
+    if (!previous) {
+      previous = node.parentNode.previousSibling;
+    }
+    if (!previous) {
+      previous = node.parentNode.parentNode.previousSibling;
+    }
+    while (previous.lastChild) {
+      previous = previous.lastChild;
+    }
+    return previous;
+  };
+
+  nextLeaf = function(node) {
+    var next;
+    next = node.nextSibling;
+    if (!next) {
+      next = node.parentNode.nextSibling;
+    }
+    if (!next) {
+      next = node.parentNode.parentNode.nextSibling;
+    }
+    while (next != null ? next.firstChild : void 0) {
+      next = next.firstChild;
+    }
+    return next;
+  };
+
+  Selection = (function() {
+    function Selection() {
+      butterfly.body.classList.add('selection');
+      this.selection = getSelection();
+    }
+
+    Selection.prototype.reset = function() {
+      var fakeRange, ref, results;
+      this.selection = getSelection();
+      fakeRange = document.createRange();
+      fakeRange.setStart(this.selection.anchorNode, this.selection.anchorOffset);
+      fakeRange.setEnd(this.selection.focusNode, this.selection.focusOffset);
+      this.start = {
+        node: this.selection.anchorNode,
+        offset: this.selection.anchorOffset
+      };
+      this.end = {
+        node: this.selection.focusNode,
+        offset: this.selection.focusOffset
+      };
+      if (fakeRange.collapsed) {
+        ref = [this.end, this.start], this.start = ref[0], this.end = ref[1];
+      }
+      this.startLine = this.start.node;
+      while (!this.startLine.classList || indexOf.call(this.startLine.classList, 'line') < 0) {
+        this.startLine = this.startLine.parentNode;
+      }
+      this.endLine = this.end.node;
+      results = [];
+      while (!this.endLine.classList || indexOf.call(this.endLine.classList, 'line') < 0) {
+        results.push(this.endLine = this.endLine.parentNode);
+      }
+      return results;
+    };
+
+    Selection.prototype.clear = function() {
+      return this.selection.removeAllRanges();
+    };
+
+    Selection.prototype.destroy = function() {
+      butterfly.body.classList.remove('selection');
+      return this.clear();
+    };
+
+    Selection.prototype.text = function() {
+      return this.selection.toString().replace(/\u00A0/g, ' ').replace(/\u2007/g, ' ');
+    };
+
+    Selection.prototype.up = function() {
+      return this.go(-1);
+    };
+
+    Selection.prototype.down = function() {
+      return this.go(+1);
+    };
+
+    Selection.prototype.go = function(n) {
+      var index;
+      index = Array.prototype.indexOf.call(butterfly.term.childNodes, this.startLine) + n;
+      if (!((0 <= index && index < butterfly.term.childElementCount))) {
+        return;
+      }
+      while (!butterfly.term.childNodes[index].textContent.match(/\S/)) {
+        index += n;
+        if (!((0 <= index && index < butterfly.term.childElementCount))) {
+          return;
+        }
+      }
+      return this.selectLine(index);
+    };
+
+    Selection.prototype.apply = function() {
+      var range;
+      this.clear();
+      range = document.createRange();
+      range.setStart(this.start.node, this.start.offset);
+      range.setEnd(this.end.node, this.end.offset);
+      return this.selection.addRange(range);
+    };
+
+    Selection.prototype.selectLine = function(index) {
+      var line, lineEnd, lineStart;
+      line = butterfly.term.childNodes[index];
+      lineStart = {
+        node: line.firstChild,
+        offset: 0
+      };
+      lineEnd = {
+        node: line.lastChild,
+        offset: line.lastChild.textContent.length
+      };
+      this.start = this.walk(lineStart, /\S/);
+      return this.end = this.walk(lineEnd, /\S/, true);
+    };
+
+    Selection.prototype.collapsed = function(start, end) {
+      var fakeRange;
+      fakeRange = document.createRange();
+      fakeRange.setStart(start.node, start.offset);
+      fakeRange.setEnd(end.node, end.offset);
+      return fakeRange.collapsed;
+    };
+
+    Selection.prototype.shrinkRight = function() {
+      var end, node;
+      node = this.walk(this.end, /\s/, true);
+      end = this.walk(node, /\S/, true);
+      if (!this.collapsed(this.start, end)) {
+        return this.end = end;
+      }
+    };
+
+    Selection.prototype.shrinkLeft = function() {
+      var node, start;
+      node = this.walk(this.start, /\s/);
+      start = this.walk(node, /\S/);
+      if (!this.collapsed(start, this.end)) {
+        return this.start = start;
+      }
+    };
+
+    Selection.prototype.expandRight = function() {
+      var node;
+      node = this.walk(this.end, /\S/);
+      return this.end = this.walk(node, /\s/);
+    };
+
+    Selection.prototype.expandLeft = function() {
+      var node;
+      node = this.walk(this.start, /\S/, true);
+      return this.start = this.walk(node, /\s/, true);
+    };
+
+    Selection.prototype.walk = function(needle, til, backward) {
+      var i, node, text;
+      if (backward == null) {
+        backward = false;
+      }
+      if (needle.node.firstChild) {
+        node = needle.node.firstChild;
+      } else {
+        node = needle.node;
+      }
+      text = node != null ? node.textContent : void 0;
+      i = needle.offset;
+      if (backward) {
+        while (node) {
+          while (i > 0) {
+            if (text[--i].match(til)) {
+              return {
+                node: node,
+                offset: i + 1
+              };
+            }
+          }
+          node = previousLeaf(node);
+          text = node != null ? node.textContent : void 0;
+          i = text.length;
+        }
+      } else {
+        while (node) {
+          while (i < text.length) {
+            if (text[i++].match(til)) {
+              return {
+                node: node,
+                offset: i - 1
+              };
+            }
+          }
+          node = nextLeaf(node);
+          text = node != null ? node.textContent : void 0;
+          i = 0;
+        }
+      }
+      return needle;
+    };
+
+    return Selection;
+
+  })();
+
+  document.addEventListener('keydown', function(e) {
+    var r, ref, ref1;
+    if (ref = e.keyCode, indexOf.call([16, 17, 18, 19], ref) >= 0) {
+      return true;
+    }
+    if (e.shiftKey && e.keyCode === 13 && !selection && !getSelection().isCollapsed) {
+      butterfly.send(getSelection().toString());
+      getSelection().removeAllRanges();
+      return cancel(e);
+    }
+    if (selection) {
+      selection.reset();
+      if (!e.ctrlKey && e.shiftKey && (37 <= (ref1 = e.keyCode) && ref1 <= 40)) {
+        return true;
+      }
+      if (e.shiftKey && e.ctrlKey) {
+        if (e.keyCode === 38) {
+          selection.up();
+        } else if (e.keyCode === 40) {
+          selection.down();
+        }
+      } else if (e.keyCode === 39) {
+        selection.shrinkLeft();
+      } else if (e.keyCode === 38) {
+        selection.expandLeft();
+      } else if (e.keyCode === 37) {
+        selection.shrinkRight();
+      } else if (e.keyCode === 40) {
+        selection.expandRight();
+      } else {
+        return cancel(e);
+      }
+      if (selection != null) {
+        selection.apply();
+      }
+      return cancel(e);
+    }
+    if (!selection && e.ctrlKey && e.shiftKey && e.keyCode === 38) {
+      r = Math.max(butterfly.term.childElementCount - butterfly.rows, 0);
+      selection = new Selection();
+      selection.selectLine(r + butterfly.y - 1);
+      selection.apply();
+      return cancel(e);
+    }
+    return true;
+  });
+
+  document.addEventListener('keyup', function(e) {
+    var ref, ref1;
+    if (ref = e.keyCode, indexOf.call([16, 17, 18, 19], ref) >= 0) {
+      return true;
+    }
+    if (selection) {
+      if (e.keyCode === 13) {
+        butterfly.send(selection.text());
+        selection.destroy();
+        selection = null;
+        return cancel(e);
+      }
+      if (ref1 = e.keyCode, indexOf.call([37, 38, 39, 40], ref1) < 0) {
+        selection.destroy();
+        selection = null;
+        return true;
+      }
+    }
+    return true;
+  });
+
+  document.addEventListener('dblclick', function(e) {
+    var anchorNode, anchorOffset, newRange, range, sel;
+    if (e.ctrlKey || e.altkey) {
+      return;
+    }
+    sel = getSelection();
+    if (sel.isCollapsed || sel.toString().match(/\s/)) {
+      return;
+    }
+    range = document.createRange();
+    range.setStart(sel.anchorNode, sel.anchorOffset);
+    range.setEnd(sel.focusNode, sel.focusOffset);
+    if (range.collapsed) {
+      sel.removeAllRanges();
+      newRange = document.createRange();
+      newRange.setStart(sel.focusNode, sel.focusOffset);
+      newRange.setEnd(sel.anchorNode, sel.anchorOffset);
+      sel.addRange(newRange);
+    }
+    while (!(sel.toString().match(/\s/) || !sel.toString())) {
+      sel.modify('extend', 'forward', 'character');
+    }
+    sel.modify('extend', 'backward', 'character');
+    anchorNode = sel.anchorNode;
+    anchorOffset = sel.anchorOffset;
+    sel.collapseToEnd();
+    sel.extend(anchorNode, anchorOffset);
+    while (!(sel.toString().match(/\s/) || !sel.toString())) {
+      sel.modify('extend', 'backward', 'character');
+    }
+    return sel.modify('extend', 'forward', 'character');
+  });
+
+  document.addEventListener('keydown', function(e) {
+    var oReq;
+    if (!(e.altKey && e.keyCode === 69)) {
+      return true;
+    }
+    oReq = new XMLHttpRequest();
+    oReq.addEventListener('load', function() {
+      var j, len, out, ref, response, session;
+      response = JSON.parse(this.responseText);
+      out = '<div>';
+      out += '<h2>Session list</h2>';
+      if (response.sessions.length === 0) {
+        out += "No current session for user " + response.user;
+      } else {
+        out += '<ul>';
+        ref = response.sessions;
+        for (j = 0, len = ref.length; j < len; j++) {
+          session = ref[j];
+          out += "<li><a href=\"/session/" + session + "\">" + session + "</a></li>";
+        }
+        out += '</ul>';
+      }
+      out += '</div>';
+      return popup.open(out);
+    });
+    oReq.open("GET", "/sessions/list.json");
+    oReq.send();
+    return cancel(e);
+  });
+
+  _set_theme_href = function(href) {
+    var img;
+    document.getElementById('style').setAttribute('href', href);
+    img = document.createElement('img');
+    img.onerror = function() {
+      return setTimeout((function() {
+        return typeof butterfly !== "undefined" && butterfly !== null ? butterfly.resize() : void 0;
+      }), 250);
+    };
+    return img.src = href;
+  };
+
+  _theme = typeof localStorage !== "undefined" && localStorage !== null ? localStorage.getItem('theme') : void 0;
+
+  if (_theme) {
+    _set_theme_href(_theme);
+  }
+
+  this.set_theme = function(theme) {
+    _theme = theme;
+    if (typeof localStorage !== "undefined" && localStorage !== null) {
+      localStorage.setItem('theme', theme);
+    }
+    if (theme) {
+      return _set_theme_href(theme);
+    }
+  };
+
+  document.addEventListener('keydown', function(e) {
+    var oReq, style;
+    if (!(e.altKey && e.keyCode === 83)) {
+      return true;
+    }
+    if (e.shiftKey) {
+      style = document.getElementById('style').getAttribute('href');
+      style = style.split('?')[0];
+      _set_theme_href(style + '?' + (new Date().getTime()));
+      return cancel(e);
+    }
+    oReq = new XMLHttpRequest();
+    oReq.addEventListener('load', function() {
+      var builtin_themes, inner, j, k, len, len1, option, response, theme, theme_list, themes, url;
+      response = JSON.parse(this.responseText);
+      builtin_themes = response.builtin_themes;
+      themes = response.themes;
+      inner = "<form>\n  <h2>Pick a theme:</h2>\n  <select id=\"theme_list\">";
+      option = function(url, theme) {
+        inner += '<option ';
+        if (_theme === url) {
+          inner += 'selected ';
+        }
+        inner += "value=\"" + url + "\">";
+        inner += theme;
+        return inner += '</option>';
+      };
+      option("/static/main.css", 'default');
+      if (themes.length) {
+        inner += '<optgroup label="Local themes">';
+        for (j = 0, len = themes.length; j < len; j++) {
+          theme = themes[j];
+          url = "/theme/" + theme + "/style.css";
+          option(url, theme);
+        }
+        inner += '</optgroup>';
+      }
+      inner += '<optgroup label="Built-in themes">';
+      for (k = 0, len1 = builtin_themes.length; k < len1; k++) {
+        theme = builtin_themes[k];
+        url = "/theme/" + theme + "/style.css";
+        option(url, theme.slice('built-in-'.length));
+      }
+      inner += '</optgroup>';
+      inner += "  </select>\n  <label>You can create yours in " + response.dir + ".</label>\n</form>";
+      popup.open(inner);
+      theme_list = document.getElementById('theme_list');
+      return theme_list.addEventListener('change', function() {
+        return set_theme(theme_list.value);
+      });
+    });
+    oReq.open("GET", "/themes/list.json");
+    oReq.send();
+    return cancel(e);
+  });
+
+}).call(this);
+
+//# sourceMappingURL=ext.js.map

butterfly/static/sass/main.sass

@@ -1,147 +0,0 @@
-/* *-* coding: utf-8 *-*
-/* This file is part of butterfly
-/*
-/* butterfly Copyright (C) 2014  Florian Mounier
-/* This program is free software: you can redistribute it and/or modify
-/* it under the terms of the GNU General Public License as published by
-/* the Free Software Foundation, either version 3 of the License, or
-/* (at your option) any later version.
-/*
-/* This program is distributed in the hope that it will be useful,
-/* but WITHOUT ANY WARRANTY; without even the implied warranty of
-/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-/* GNU General Public License for more details.
-/*
-/* You should have received a copy of the GNU General Public License
-/* along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-@import compass/css3
-
-+font-face("SourceCodePro", font-files("SourceCodePro-ExtraLight.otf"), "", 100, normal)
-+font-face("SourceCodePro", font-files("SourceCodePro-Light.otf"), "", 300, normal)
-+font-face("SourceCodePro", font-files("SourceCodePro-Regular.otf"), "", 400, normal)
-+font-face("SourceCodePro", font-files("SourceCodePro-Medium.otf"), "", 500, normal)
-+font-face("SourceCodePro", font-files("SourceCodePro-Semibold.otf"), "", 600, normal)
-+font-face("SourceCodePro", font-files("SourceCodePro-Bold.otf"), "", 700, normal)
-+font-face("SourceCodePro", font-files("SourceCodePro-Black.otf"), "", 900, normal)
-
-$bg: #110f13
-$fg: #f4ead5
-
-$shadow: 6px
-$shadow-alpha: .5
-
-
-html, body
-  height: 100%
-  font-family: "SourceCodePro"
-  margin: 0
-  padding: 0
-  line-height: 1.2
-
-
-#wrapper
-  height: 100%
-  background-color: $bg
-  overflow: hidden
-  white-space: nowrap
-
-.terminal
-  outline: none
-  background-color: $bg
-  color: $fg
-  text-shadow: 0 0 $shadow rgba($fg, $shadow-alpha)
-  +transition(200ms)
-
-  &.bell
-    +filter(blur(2px))
-
-  &.skip
-    +filter(sepia(1))
-
-.line
-  overflow: visible
-
-  .inline-html
-    white-space: normal
-
-
-.focus .cursor
-  +transition(300ms)
-
-::selection
-  background-color: black
-
-::-moz-selection
-  background-color: black
-
-.cursor.reverse-video
-  box-shadow: 0 0 10px $fg
-
-/* Terminal styles
-.bold
-  font-weight: bold
-
-.underline
-  text-decoration: underline
-
-.blink
-  text-decoration: blink
-
-.invisible
-  visibility: hidden
-
-.reverse-video
-  color: $bg
-  background-color: $fg
-
-.blur .cursor.reverse-video
-  background: none
-
-=termcolor($i, $color)
-  .bg-color-#{$i}
-    background-color: $color
-    &.reverse-video
-      color: $color !important
-
-  .fg-color-#{$i}
-    color: $color
-    &.reverse-video
-      background-color: $color !important
-
-    text-shadow: 0 0 $shadow rgba($color, $shadow-alpha)
-
-
-+termcolor(0, #2e3436)
-+termcolor(1, #cc0000)
-+termcolor(2, #4e9a06)
-+termcolor(3, #c4a000)
-+termcolor(4, #3465a4)
-+termcolor(5, #75507b)
-+termcolor(6, #06989a)
-+termcolor(7, #d3d7cf)
-+termcolor(8, #555753)
-+termcolor(9, #ef2929)
-+termcolor(10, #8ae234)
-+termcolor(11, #fce94f)
-+termcolor(12, #729fcf)
-+termcolor(13, #ad7fa8)
-+termcolor(14, #34e2e2)
-+termcolor(15, #eeeeec)
-
-$st: 00, 95, 135, 175, 215, 255
-
-@for $i from 0 through 215
-  $r: nth($st, 1 + floor(($i / 36) % 6))
-  $g: nth($st, 1 + floor(($i / 6) % 6))
-  $b: nth($st, 1 + $i % 6)
-  +termcolor($i + 16, rgb($r, $g, $b))
-
-@for $i from 0 through 23
-  $l: 8 + $i * 10
-  +termcolor($i + 232, rgb($l, $l, $l))
-
-
-/* ??
-+termcolor(256, $bg)
-+termcolor(257, $fg)

butterfly/static/stylesheets/fonts/glyphicons-halflings-regular.svg

@@ -1,229 +0,0 @@
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-<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd" >
-<svg xmlns="http://www.w3.org/2000/svg">
-<metadata></metadata>
-<defs>
-<font id="glyphicons_halflingsregular" horiz-adv-x="1200" >
-<font-face units-per-em="1200" ascent="960" descent="-240" />
-<missing-glyph horiz-adv-x="500" />
-<glyph />
-<glyph />
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-<glyph unicode="+" d="M0 400v300h400v400h300v-400h400v-300h-400v-400h-300v400h-400z" />
-<glyph unicode="&#xa0;" />
-<glyph unicode="&#x2000;" horiz-adv-x="652" />
-<glyph unicode="&#x2001;" horiz-adv-x="1304" />
-<glyph unicode="&#x2002;" horiz-adv-x="652" />
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-</defs></svg> 

butterfly/templates/index.html

@@ -1,4 +1,6 @@
 <!DOCTYPE html>
+{% from tornado.options import options %}
+{% from uuid import uuid4 %}
 <html>
   <head>
     <meta charset="utf-8">
@@ -9,11 +11,26 @@
     <link rel="shortcut icon" href="{{ static_url('images/favicon.png') }}">
 
     <title>Butterfly</title>
-    <link href="{{ static_url('stylesheets/main.css') }}" rel="stylesheet">
+    <link href="{{ static_url('main.css') }}" rel="stylesheet" id="style">
   </head>
 
-  <body spellcheck="false">
-    <main id="wrapper"> </main>
-    <script src="{{ static_url('javascripts/main.js') }}"></script>
+  <body spellcheck="false"
+        data-force-unicode-width="{{ 'yes' if options.force_unicode_width else 'no' }}"
+        data-root-path="{{ options.uri_root_path }}"
+        data-session-token={{ session }}>
+    <textarea id="input-helper">
+    </textarea>
+    <div id="input-view" class="hidden">
+    </div>
+    <div id="popup" class="hidden">
+    </div>
+    <script src="{{ static_url('html-sanitizer.js') }}"></script>
+    <script src="{{ static_url('main.%sjs' % (
+                 '' if options.unminified else 'min.')) }}"></script>
+    <script src="{{ static_url('ext.%sjs' % (
+                 '' if options.unminified else 'min.')) }}"></script>
+    <script src="{{ reverse_url('LocalJsStatic') }}"></script>
+    <div id="packed"></div>
+    <div id="term"></div>
   </body>
 </html>

butterfly/templates/motd

@@ -0,0 +1,26 @@
+
+{{ colors.blue }}                   `         '
+   ;,,,             `       '             ,,,;
+   `Y888888bo.       :     :       .od888888Y'
+     8888888888b.     :   :     .d8888888888
+     88888Y'  `Y8b.   `   '   .d8Y'  `Y88888
+    j88888  {{ colors.white }}.db.{{ colors.blue }}  Yb. '   ' .dY  {{ colors.white }}.db.{{ colors.blue }}  88888k
+      `888  {{ colors.white }}Y88Y{{ colors.blue }}    `b ( ) d'    {{ colors.white }}Y88Y{{ colors.blue }}  888'
+       888b  {{ colors.white }}'"{{ colors.blue }}        ,',        {{ colors.white }}"'{{ colors.blue }}  d888
+      j888888bd8gf"'   ':'   `"?g8bd888888k
+        {{ colors.white }}'Y'{{ colors.blue }}   .8'     d' 'b     '8.   {{ colors.white }}'Y'{{ colors.reset }}
+         {{ colors.white }}!{{ colors.blue }}   .8' {{ colors.white }}db{{ colors.blue }}  d'; ;`b  {{ colors.white }}db{{ colors.blue }} '8.   {{ colors.white }}!{{ colors.blue }}
+            d88  {{ colors.white }}`'{{ colors.blue }}  8 ; ; 8  {{ colors.white }}`'{{ colors.blue }}  88b             {{ colors.white }}butterfly {{ colors.yellow }}v {{ version }}{{ colors.blue }}
+           d888b   .g8 ',' 8g.   d888b
+          :888888888Y'     'Y888888888:           {{ colors.light_white }}Connecting to:{{ colors.blue }}
+          '! 8888888'       `8888888 !'              {{ colors.red if opts.unsecure else colors.green }}{{ butterfly.socket.local_addr }}:{{ butterfly.socket.local_port }}{{ colors.blue }}
+             '8Y  {{ colors.white }}`Y         Y'{{ colors.blue }}  Y8'
+{{ colors.white }}              Y                   Y               {{ colors.light_white }}From:{{ colors.white }}
+              !                   !                  {{ colors.red if opts.unsecure else colors.green }}{{ butterfly.socket.remote_addr }}:{{ butterfly.socket.remote_port }}{{ colors.reset }}
+
+For more information type: {{ colors.white }}$ {{ colors.green }}butterfly help{{ colors.reset }}
+{% if opts.unsecure and not opts.i_hereby_declare_i_dont_want_any_security_whatsoever %}{{ colors.light_red + '\x1b[5m' }}/!\{{ colors.reset }} {{ colors.red }}This session is UNSECURE everyone can access you terminal at:
+{{ uri }}
+{% else %}You can share your session with the following uri:
+{{ uri }}
+{% end %}

butterfly/terminal.py

@@ -0,0 +1,360 @@
+# *-* coding: utf-8 *-*
+# This file is part of butterfly
+#
+# butterfly Copyright(C) 2015-2017 Florian Mounier
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import fcntl
+import io
+import os
+import pty
+import random
+import signal
+import string
+import struct
+import sys
+import termios
+from logging import getLogger
+
+import tornado.ioloop
+import tornado.options
+import tornado.process
+import tornado.web
+import tornado.websocket
+
+from butterfly import __version__, utils
+
+log = getLogger('butterfly')
+ioloop = tornado.ioloop.IOLoop.instance()
+server = utils.User()
+daemon = utils.User(name='daemon')
+
+
+# Python 2 backward compatibility
+try:
+    input = raw_input
+except NameError:
+    pass
+
+
+class Terminal(object):
+    sessions = {}
+
+    def __init__(self, user, path, session, socket, uri, render_string,
+                 broadcast):
+        self.sessions[session] = self
+        self.history_size = 50000
+        self.history = ''
+        self.uri = uri
+        self.session = session
+        self.broadcast = broadcast
+        self.fd = None
+        self.closed = False
+        self.socket = socket
+        log.info('Terminal opening with session: %s and socket %r' % (
+            self.session, self.socket))
+        self.path = path
+        self.user = user if user else None
+        self.caller = self.callee = None
+
+        # If local we have the user connecting
+        if self.socket.local and self.socket.user is not None:
+            self.caller = self.socket.user
+
+        if tornado.options.options.unsecure:
+            if self.user:
+                try:
+                    self.callee = self.user
+                except LookupError:
+                    log.debug(
+                        "Can't switch to user %s" % self.user, exc_info=True)
+                    self.callee = None
+
+            # If no user where given and we are local, keep the same
+            # user as the one who opened the socket ie: the one
+            # openning a terminal in browser
+            if not self.callee and not self.user and self.socket.local:
+                self.user = self.callee = self.caller
+        else:
+            # Authed user
+            self.callee = self.user
+
+        if tornado.options.options.motd != '':
+            motd = (render_string(
+                tornado.options.options.motd,
+                butterfly=self,
+                version=__version__,
+                opts=tornado.options.options,
+                uri=self.uri,
+                colors=utils.ansi_colors
+            ).decode('utf-8')
+             .replace('\r', '')
+             .replace('\n', '\r\n'))
+            self.send(motd)
+
+        log.info('Forking pty for user %r' % self.user)
+
+    def send(self, message):
+        if message is not None:
+            self.history += message
+            if len(self.history) > self.history_size:
+                self.history = self.history[-self.history_size:]
+        self.broadcast(self.session, message)
+
+    def pty(self):
+        # Make a "unique" id in 4 bytes
+        self.uid = ''.join(
+            random.choice(
+                string.ascii_lowercase + string.ascii_uppercase +
+                string.digits)
+            for _ in range(4))
+
+        self.pid, self.fd = pty.fork()
+        if self.pid == 0:
+            self.determine_user()
+            log.debug('Pty forked for user %r caller %r callee %r' % (
+                self.user, self.caller, self.callee))
+            self.shell()
+        else:
+            self.communicate()
+
+    def determine_user(self):
+        if not tornado.options.options.unsecure:
+            # Secure mode we must have already a callee
+            assert self.callee is not None
+            return
+
+        # If we should login, login
+        if tornado.options.options.login:
+            user = ''
+            while user == '':
+                try:
+                    user = input('login: ')
+                except (KeyboardInterrupt, EOFError):
+                    log.debug("Error in login input", exc_info=True)
+                    pass
+
+            try:
+                self.callee = utils.User(name=user)
+            except Exception:
+                log.debug("Can't switch to user %s" % user, exc_info=True)
+                self.callee = utils.User(name='nobody')
+            return
+
+        # if login is not required, we will use the same user as
+        # butterfly is executed
+        self.callee = self.callee or utils.User()
+
+    def shell(self):
+        try:
+            os.chdir(self.path or self.callee.dir)
+        except Exception:
+            log.debug(
+                "Can't chdir to %s" % (self.path or self.callee.dir),
+                exc_info=True)
+
+        # If local and local user is the same as login user
+        # We set the env of the user from the browser
+        # Usefull when running as root
+        if self.caller == self.callee:
+            env = os.environ
+            env.update(self.socket.env)
+        else:
+            # May need more?
+            env = {}
+        env["TERM"] = "xterm-256color"
+        env["COLORTERM"] = "butterfly"
+        env["HOME"] = self.callee.dir
+        env["LOCATION"] = self.uri
+        env['BUTTERFLY_PATH'] = os.path.abspath(os.path.join(
+            os.path.dirname(__file__), 'bin'))
+
+        try:
+            tty = os.ttyname(0).replace('/dev/', '')
+        except Exception:
+            log.debug("Can't get ttyname", exc_info=True)
+            tty = ''
+        if self.caller != self.callee:
+            try:
+                os.chown(os.ttyname(0), self.callee.uid, -1)
+            except Exception:
+                log.debug("Can't chown ttyname", exc_info=True)
+
+        utils.add_user_info(
+            self.uid,
+            tty, os.getpid(),
+            self.callee.name, self.uri)
+
+        local_login = (
+            self.socket.local and self.caller == self.callee and
+            server == self.callee)
+        secure = not tornado.options.options.unsecure
+        force_login = tornado.options.options.login
+        ignore_security = (
+            tornado.options.options.
+            i_hereby_declare_i_dont_want_any_security_whatsoever)
+
+        if not force_login and (ignore_security or secure or local_login):
+            # User has been auth with ssl or is the same user as server
+            # or login is explicitly turned off
+            if secure and not local_login:
+                # User is authed by ssl, setting groups
+                try:
+                    os.initgroups(self.callee.name, self.callee.gid)
+                    os.setgid(self.callee.gid)
+                    os.setuid(self.callee.uid)
+                    # Apparently necessary for some cmd
+                    env['LOGNAME'] = env['USER'] = self.callee.name
+                except Exception:
+                    log.error(
+                        'The server must be run as root '
+                        'if you want to log as different user\n',
+                        exc_info=True)
+                    sys.exit(1)
+
+            if tornado.options.options.cmd:
+                args = tornado.options.options.cmd.split(' ')
+            else:
+                args = [tornado.options.options.shell or self.callee.shell]
+                args.append('-il')
+
+            # In some cases some shells don't export SHELL var
+            env['SHELL'] = args[0]
+            os.execvpe(args[0], args, env)
+            # This process has been replaced
+
+        if tornado.options.options.pam_profile:
+            if not server.root:
+                print('You must be root to use pam_profile option.')
+                sys.exit(3)
+            pam_path = os.path.join(
+                os.path.dirname(os.path.realpath(__file__)), 'pam.py')
+            os.execvpe(sys.executable, [
+                sys.executable, pam_path, self.callee.name,
+                tornado.options.options.pam_profile], env)
+
+        # Unsecure connection with su
+        if server.root:
+            if self.socket.local:
+                if self.callee != self.caller:
+                    # Force password prompt by dropping rights
+                    # to the daemon user
+                    os.setuid(daemon.uid)
+            else:
+                # We are not local so we should always get a password prompt
+                if self.callee == daemon:
+                    # No logging from daemon
+                    sys.exit(1)
+                os.setuid(daemon.uid)
+
+        if os.path.exists('/usr/bin/su'):
+            args = ['/usr/bin/su']
+        else:
+            args = ['/bin/su']
+
+        args.append('-l')
+        if sys.platform.startswith('linux') and tornado.options.options.shell:
+            args.append('-s')
+            args.append(tornado.options.options.shell)
+        args.append(self.callee.name)
+        os.execvpe(args[0], args, env)
+
+    def communicate(self):
+        fcntl.fcntl(self.fd, fcntl.F_SETFL, os.O_NONBLOCK)
+
+        def utf8_error(e):
+            log.error(e)
+
+        self.reader = io.open(
+            self.fd,
+            'rb',
+            buffering=0,
+            closefd=False
+        )
+        self.writer = io.open(
+            self.fd,
+            'wt',
+            encoding='utf-8',
+            closefd=False
+        )
+        ioloop.add_handler(
+            self.fd, self.shell_handler, ioloop.READ | ioloop.ERROR)
+
+    def write(self, message):
+        if not hasattr(self, 'writer'):
+            self.on_close()
+            self.close()
+
+        log.debug('WRIT<%r' % message)
+        self.writer.write(message)
+        self.writer.flush()
+
+    def ctl(self, message):
+        if message['cmd'] == 'size':
+            cols = message['cols']
+            rows = message['rows']
+            s = struct.pack("HHHH", rows, cols, 0, 0)
+            fcntl.ioctl(self.fd, termios.TIOCSWINSZ, s)
+            log.info('SIZE (%d, %d)' % (cols, rows))
+
+    def shell_handler(self, fd, events):
+        if events & ioloop.READ:
+            try:
+                read = self.reader.read()
+            except IOError:
+                read = ''
+
+            log.debug('READ>%r' % read)
+            if read and len(read) != 0:
+                self.send(read.decode('utf-8', 'replace'))
+            else:
+                events = ioloop.ERROR
+
+        if events & ioloop.ERROR:
+            log.info('Error on fd %d, closing' % fd)
+            # Terminated
+            self.send(None)  # Close all
+            self.close()
+
+    def close(self):
+        if self.closed:
+            return
+        self.closed = True
+        if self.fd is not None:
+            log.info('Closing fd %d' % self.fd)
+
+        if getattr(self, 'pid', 0) == 0:
+            log.info('pid is 0')
+            return
+
+        utils.rm_user_info(self.uid, self.pid)
+
+        try:
+            ioloop.remove_handler(self.fd)
+        except Exception:
+            log.error('handler removal fail', exc_info=True)
+
+        try:
+            os.close(self.fd)
+        except Exception:
+            log.debug('closing fd fail', exc_info=True)
+
+        try:
+            os.kill(self.pid, signal.SIGHUP)
+            os.kill(self.pid, signal.SIGCONT)
+            os.waitpid(self.pid, 0)
+        except Exception:
+            log.debug('waitpid fail', exc_info=True)
+
+        del self.sessions[self.session]

butterfly/utils.py

@@ -1,7 +1,7 @@
 # *-* coding: utf-8 *-*
 # This file is part of butterfly
 #
-# butterfly Copyright (C) 2014  Florian Mounier
+# butterfly Copyright(C) 2015-2017 Florian Mounier
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
@@ -18,15 +18,61 @@
 
 import os
 import pwd
+import re
+import struct
+import subprocess
+import sys
+import time
+from collections import namedtuple
 from logging import getLogger
 
-
 log = getLogger('butterfly')
 
 
+def get_hex_ip_port(remote):
+    ip, port = remote
+    if ip.startswith('::ffff:'):
+        ip = ip[len('::ffff:'):]
+    splits = ip.split('.')
+    if ':' not in ip and len(splits) == 4:
+        # Must be an ipv4
+        return '%02X%02X%02X%02X:%04X' % (
+            int(splits[3]),
+            int(splits[2]),
+            int(splits[1]),
+            int(splits[0]),
+            int(port)
+        )
+    try:
+        import ipaddress
+    except ImportError:
+        print('Please install ipaddress backport for ipv6 user detection')
+        return ''
+
+    # Endian reverse:
+    ipv6_parts = ipaddress.IPv6Address(ip).exploded.split(':')
+    for i in range(0, 8, 2):
+        ipv6_parts[i], ipv6_parts[i + 1] = (
+            ipv6_parts[i + 1][2:] + ipv6_parts[i + 1][:2],
+            ipv6_parts[i][2:] + ipv6_parts[i][:2])
+
+    return ''.join(ipv6_parts) + ':%04X' % port
+
+
+def parse_cert(cert):
+    user = None
+
+    for elt in cert['subject']:
+        user = dict(elt).get('commonName', None)
+        if user:
+            break
+
+    return user
+
+
 class User(object):
     def __init__(self, uid=None, name=None):
-        if not uid and not name:
+        if uid is None and not name:
             uid = os.getuid()
         if uid is not None:
             self.pw = pwd.getpwuid(uid)
@@ -39,6 +85,10 @@ class User(object):
     def uid(self):
         return self.pw.pw_uid
 
+    @property
+    def gid(self):
+        return self.pw.pw_gid
+
     @property
     def name(self):
         return self.pw.pw_name
@@ -56,38 +106,139 @@ class User(object):
         return self.uid == 0
 
     def __eq__(self, other):
+        if other is None:
+            return False
         return self.uid == other.uid
 
     def __repr__(self):
         return "%s [%r]" % (self.name, self.uid)
 
 
-def get_socket_line(port):
+class Socket(object):
+
+    def __init__(self, socket):
+        sn = socket.getsockname()
+        self.local_addr = sn[0]
+        self.local_port = sn[1]
+        try:
+            pn = socket.getpeername()
+            self.remote_addr = pn[0]
+            self.remote_port = pn[1]
+        except Exception:
+            log.debug("Can't get peer name", exc_info=True)
+            self.remote_addr = '???'
+            self.remote_port = 0
+        self.user = None
+        self.env = {}
+
+        if not self.local:
+            return
+
+        # If there is procfs, get as much info as we can
+        if os.path.exists('/proc/net'):
+            try:
+                line = get_procfs_socket_line(get_hex_ip_port(pn[:2]))
+                self.user = User(uid=int(line[7]))
+                self.env = get_socket_env(line[9], self.user)
+            except Exception:
+                log.debug('procfs was no good, aight', exc_info=True)
+
+        if self.user is None:
+            # Try with lsof
+            try:
+                self.user = User(name=get_lsof_socket_line(
+                    self.remote_addr, self.remote_port)[1])
+            except Exception:
+                log.debug('lsof was no good', exc_info=True)
+
+    @property
+    def local(self):
+        return (self.remote_addr in ['127.0.0.1', '::1', '::ffff:127.0.0.1'] or
+                self.local_addr == self.remote_addr)
+
+    def __repr__(self):
+        return '<Socket L: %s:%d R: %s:%d User: %r>' % (
+            self.local_addr, self.local_port,
+            self.remote_addr, self.remote_port,
+            self.user)
+
+
+# Portable way to get the user, if lsof is installed
+def get_lsof_socket_line(addr, port):
+    # May want to make this into a dictionary in the future...
+    regex = "\w+\s+(?P<pid>\d+)\s+(?P<user>\w+).*\s" \
+            "(?P<laddr>.*?):(?P<lport>\d+)->(?P<raddr>.*?):(?P<rport>\d+)"
+    output = subprocess.check_output(['lsof', '-Pni']).decode('utf-8')
+    lines = output.split('\n')
+    for line in lines:
+        # Look for local address with peer port
+        match = re.findall(regex, line)
+        if len(match):
+            match = match[0]
+            if int(match[5]) == port:
+                return match
+    raise Exception("Couldn't find a match!")
+
+
+# Linux only socket line get
+def get_procfs_socket_line(hex_ip_port):
+    fn = None
+    if len(hex_ip_port) == 13:  # ipv4
+        fn = '/proc/net/tcp'
+    elif len(hex_ip_port) == 37:  # ipv6
+        fn = '/proc/net/tcp6'
+    if not fn:
+        return
     try:
-        with open('/proc/net/tcp') as k:
+        with open(fn) as k:
             lines = k.readlines()
         for line in lines:
             # Look for local address with peer port
-            if line.split()[1] == '0100007F:%X' % port:
+            if line.split()[1] == hex_ip_port:
                 # We got the socket
                 return line.split()
-    except:
-        log.error('getting socket inet4 line fail', exc_info=True)
-
-    try:
-        with open('/proc/net/tcp6') as k:
-            lines = k.readlines()
-        for line in lines:
-            # Look for local address with peer port
-            if line.split()[1] == (
-                    '00000000000000000000000001000000:%X' % port):
-                # We got the socket
-                return line.split()
-    except:
-        log.error('getting socket inet6 line fail', exc_info=True)
+    except Exception:
+        log.debug('getting socket %s line fail' % fn, exc_info=True)
 
 
-def get_env(inode):
+# Linux only browser environment far fetch
+def get_socket_env(inode, user):
+    for pid in os.listdir("/proc/"):
+        if not pid.isdigit():
+            continue
+        try:
+            with open('/proc/%s/cmdline' % pid) as c:
+                command = c.read().split('\x00')
+                executable = command[0].split('/')[-1]
+                if executable in ('sh', 'bash', 'zsh'):
+                    executable = command[1].split('/')[-1]
+                if executable in [
+                        'gnome-session',
+                        'gnome-session-binary',
+                        'startkde',
+                        'startdde',
+                        'xfce4-session']:
+                    with open('/proc/%s/status' % pid) as e:
+                        uid = None
+                        for line in e.read().splitlines():
+                            parts = line.split('\t')
+                            if parts[0] == 'Uid:':
+                                uid = int(parts[1])
+                                break
+                        if not uid or uid != user.uid:
+                            continue
+
+                    with open('/proc/%s/environ' % pid) as e:
+                        keyvals = e.read().split('\x00')
+                        env = {}
+                        for keyval in keyvals:
+                            if '=' in keyval:
+                                key, val = keyval.split('=', 1)
+                                env[key] = val
+                        return env
+        except Exception:
+            continue
+
     for pid in os.listdir("/proc/"):
         if not pid.isdigit():
             continue
@@ -110,36 +261,153 @@ def get_env(inode):
                                 return env
 
 
-class Socket(object):
+utmp_struct = struct.Struct('hi32s4s32s256shhiii4i20s')
 
-    def __init__(self, socket):
-        sn = socket.getsockname()
-        self.local_addr = sn[0]
-        self.local_port = sn[1]
-        pn = socket.getpeername()
-        self.remote_addr = pn[0]
-        self.remote_port = pn[1]
-        line = get_socket_line(self.remote_port)
-        if line:
-            self.uid = int(line[7])
-            self.inode = line[9]
-        else:
-            self.uid = None
-            self.inode = None
 
-        self.env = {}
-        if self.local:
-            try:
-                self.env = get_env(self.inode)
-            except:
-                log.warning('Unable to get env', exc_info=True)
+if sys.version_info[0] == 2:
+    b = lambda x: x
+else:
+    def b(x):
+        if isinstance(x, str):
+            return x.encode('utf-8')
+        return x
 
-    @property
-    def local(self):
-        return self.remote_addr in ['127.0.0.1', '::1']
 
-    def __repr__(self):
-        return '<Socket L: %s:%d R: %s:%d Uid: %r Inode: %s %d>' % (
-            self.local_addr, self.local_port,
-            self.remote_addr, self.remote_port,
-            self.uid, self.inode, len(self.env))
+def get_utmp_file():
+    for file in (
+            '/var/run/utmp',
+            '/var/adm/utmp',
+            '/var/adm/utmpx',
+            '/etc/utmp',
+            '/etc/utmpx',
+            '/var/run/utx.active'):
+        if os.path.exists(file):
+            return file
+
+
+def get_wtmp_file():
+    for file in (
+            '/var/log/wtmp',
+            '/var/adm/wtmp',
+            '/var/adm/wtmpx',
+            '/var/run/utx.log'):
+        if os.path.exists(file):
+            return file
+
+
+UTmp = namedtuple(
+    'UTmp',
+    ['type', 'pid', 'line', 'id', 'user', 'host',
+     'exit0', 'exit1', 'session',
+     'sec', 'usec', 'addr0', 'addr1', 'addr2', 'addr3', 'unused'])
+
+
+def utmp_line(id, type, pid, fd, user, host, ts):
+    return UTmp(
+        type,  # Type, 7 : user process
+        pid,  # pid
+        b(fd),  # line
+        b(id),  # id
+        b(user),  # user
+        b(host),  # host
+        0,  # exit 0
+        0,  # exit 1
+        0,  # session
+        int(ts),  # sec
+        int(10 ** 6 * (ts - int(ts))),  # usec
+        0,  # addr 0
+        0,  # addr 1
+        0,  # addr 2
+        0,  # addr 3
+        b('')  # unused
+    )
+
+
+def add_user_info(id, fd, pid, user, host):
+    # Freebsd format is not yet supported.
+    # Please submit PR
+    if sys.platform != 'linux':
+        return
+    utmp = utmp_line(id, 7, pid, fd, user, host, time.time())
+    for kind, file in {
+            'utmp': get_utmp_file(),
+            'wtmp': get_wtmp_file()}.items():
+        if not file:
+            continue
+        try:
+            with open(file, 'rb+') as f:
+                s = f.read(utmp_struct.size)
+                while s:
+                    entry = UTmp(*utmp_struct.unpack(s))
+                    if kind == 'utmp' and entry.id == utmp.id:
+                        # Same id recycling
+                        f.seek(f.tell() - utmp_struct.size)
+                        f.write(utmp_struct.pack(*utmp))
+                        break
+                    s = f.read(utmp_struct.size)
+                else:
+                    f.write(utmp_struct.pack(*utmp))
+        except Exception:
+            log.debug('Unable to write utmp info to ' + file, exc_info=True)
+
+
+def rm_user_info(id, pid):
+    if sys.platform != 'linux':
+        return
+    utmp = utmp_line(id, 8, pid, '', '', '', time.time())
+    for kind, file in {
+            'utmp': get_utmp_file(),
+            'wtmp': get_wtmp_file()}.items():
+        if not file:
+            continue
+        try:
+            with open(file, 'rb+') as f:
+                s = f.read(utmp_struct.size)
+                while s:
+                    entry = UTmp(*utmp_struct.unpack(s))
+                    if entry.id == utmp.id:
+                        if kind == 'utmp':
+                            # Same id closing
+                            f.seek(f.tell() - utmp_struct.size)
+                            f.write(utmp_struct.pack(*utmp))
+                            break
+                        else:
+                            utmp = utmp_line(
+                                id, 8, pid, entry.line, entry.user, '',
+                                time.time())
+
+                    s = f.read(utmp_struct.size)
+                else:
+                    f.write(utmp_struct.pack(*utmp))
+
+        except Exception:
+            log.debug('Unable to update utmp info to ' + file, exc_info=True)
+
+
+class AnsiColors(object):
+    colors = {
+        'black': 30,
+        'red': 31,
+        'green': 32,
+        'yellow': 33,
+        'blue': 34,
+        'magenta': 35,
+        'cyan': 36,
+        'white': 37
+    }
+
+    def __getattr__(self, key):
+        bold = True
+        if key.startswith('light_'):
+            bold = False
+            key = key[len('light_'):]
+        if key in self.colors:
+            return '\x1b[%d%sm' % (
+                self.colors[key],
+                ';1' if bold else '')
+        if key == 'reset':
+            return '\x1b[0m'
+        return ''
+
+
+ansi_colors = AnsiColors()

coffees/ext/alarm.coffee

@@ -0,0 +1,94 @@
+clean_ansi = (data) ->
+  # Fast ansi clean (not complete)
+
+  if data.indexOf('\x1b') < 0
+    return data
+  i = -1
+  out = ''
+  state = 'normal'
+  while i < data.length - 1
+    c = data.charAt ++i
+    switch state
+      when 'normal'
+        if c is '\x1b'
+          state = 'escaped'
+          break
+        out += c
+
+      when 'escaped'
+        if c is '['
+          state = 'csi'
+          break
+
+        if c is ']'
+          state = 'osc'
+          break
+
+        if '#()%*+-./'.indexOf(c) >= 0
+          i++
+        state = 'normal'
+
+      when 'csi'
+        if "?>!$\" '".indexOf(c) >= 0
+          break
+        if '0' <= c <= '9'
+          break
+        break if c is ';'
+        state = 'normal'
+      when 'osc'
+        if c is "\x1b" or c is "\x07"
+          i++ if c is "\x1b"
+          state = 'normal'
+
+  return out
+
+
+setAlarm = (notification, cond) ->
+  alarm = (data) ->
+    message = clean_ansi data.data.slice(1)
+    return if cond isnt null and not cond.test(message)
+
+    butterfly.body.classList.remove 'alarm'
+    note = "Butterfly [#{ butterfly.title }]"
+
+    if notification
+      notif = new Notification(
+        note,
+        body: message,
+        icon: '/static/images/favicon.png')
+      notif.onclick = ->
+        window.focus()
+        notif.close()
+    else
+      alert(note + '\n' + message)
+
+    butterfly.ws.shell.removeEventListener 'message', alarm
+
+  butterfly.ws.shell.addEventListener 'message', alarm
+  butterfly.body.classList.add 'alarm'
+
+
+cancel = (ev) ->
+  ev.preventDefault() if ev.preventDefault
+  ev.stopPropagation() if ev.stopPropagation
+  ev.cancelBubble = true
+  false
+
+
+document.addEventListener 'keydown', (e) ->
+  return true unless e.altKey and e.keyCode is 65
+
+  cond = null
+  if e.shiftKey
+    cond = prompt('Ring alarm when encountering the following text:
+     (can be a regexp)')
+    return unless cond
+    cond = new RegExp(cond)
+
+  if Notification and Notification.permission is 'default'
+    Notification.requestPermission ->
+      setAlarm(Notification.permission is 'granted', cond)
+  else
+    setAlarm(Notification.permission is 'granted', cond)
+
+  cancel(e)

coffees/ext/clipboard.coffee

@@ -0,0 +1,52 @@
+# *-* coding: utf-8 *-*
+# This file is part of butterfly
+#
+# butterfly Copyright(C) 2015-2017 Florian Mounier
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+addEventListener 'copy', copy = (e) ->
+  document.getElementsByTagName('body')[0].contentEditable = false
+  butterfly.bell "copied"
+  e.clipboardData.clearData()
+  sel = getSelection().toString().replace(
+    /\u00A0/g, ' ').replace(/\u2007/g, ' ')
+
+  data = ''
+  for line in sel.split('\n')
+    if line.slice(-1) is '\u23CE'
+      end = ''
+      line = line.slice(0, -1)
+    else
+      end = '\n'
+    data += line.replace(/\s*$/, '') + end
+
+  e.clipboardData.setData 'text/plain', data.slice(0, -1)
+  e.preventDefault()
+
+
+addEventListener 'paste', (e) ->
+  document.getElementsByTagName('body')[0].contentEditable = false
+  butterfly.bell "pasted"
+  data = e.clipboardData.getData 'text/plain'
+  data = data.replace(/\r\n/g, '\n').replace(/\n/g, '\r')
+  # Send big data in chunks to prevent data loss
+  size = 1024
+  send = ->
+    butterfly.send data.substring(0, size)
+    data = data.substring(size)
+    if data.length
+      setTimeout send, 25
+  send()
+
+  e.preventDefault()

coffees/ext/close_confirm.coffee

@@ -0,0 +1,5 @@
+addEventListener 'beforeunload', (e) ->
+  unless (butterfly.body.classList.contains('dead') or
+    location.href.indexOf('session') > -1)
+      e.returnValue = 'This terminal is active and not in session.
+      Are you sure you want to kill it?'

coffees/ext/expand_extended.coffee

@@ -0,0 +1,10 @@
+Terminal.on 'change', (line) ->
+  if 'extended' in line.classList
+    line.addEventListener 'click', do (line) -> ->
+      if 'expanded' in line.classList
+        line.classList.remove 'expanded'
+      else
+        before = line.getBoundingClientRect().height
+        line.classList.add 'expanded'
+        after = line.getBoundingClientRect().height
+        document.body.scrollTop += after - before

coffees/ext/linkify.coffee

@@ -0,0 +1,33 @@
+walk = (node, callback) ->
+  for child in node.childNodes
+    callback.call(child)
+    walk child, callback
+
+linkify = (text) ->
+  # http://stackoverflow.com/questions/37684/how-to-replace-plain-urls-with-links
+  urlPattern = (
+    /\b(?:https?|ftp):\/\/[a-z0-9-+&@#\/%?=~_|!:,.;]*[a-z0-9-+&@#\/%=~_|]/gim)
+  pseudoUrlPattern = /(^|[^\/])(www\.[\S]+(\b|$))/gim
+  emailAddressPattern = /[\w.]+@[a-zA-Z_-]+?(?:\.[a-zA-Z]{2,6})+/gim
+  text
+    .replace(urlPattern, '<a href="$&">$&</a>')
+    .replace(pseudoUrlPattern, '$1<a href="http://$2">$2</a>')
+    .replace(emailAddressPattern, '<a href="mailto:$&">$&</a>')
+
+tags =
+  '&': '&amp;'
+  '<': '&lt;'
+  '>': '&gt;'
+
+escape = (s) -> s.replace(/[&<>]/g, (tag) -> tags[tag] or tag)
+
+Terminal.on 'change', (line) ->
+  walk line, ->
+    if @nodeType is 3
+      val = @nodeValue
+      linkified = linkify escape(val)
+      if linkified isnt val
+        newNode = document.createElement('span')
+        newNode.innerHTML = linkified
+        @parentElement.replaceChild newNode, @
+        true

coffees/ext/mobile.coffee

@@ -0,0 +1,52 @@
+# *-* coding: utf-8 *-*
+# This file is part of butterfly
+#
+# butterfly Copyright(C) 2015-2017 Florian Mounier
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+ctrl = false
+alt = false
+
+addEventListener 'touchstart', (e) ->
+  if e.touches.length == 2
+    ctrl = true
+  else if e.touches.length == 3
+    ctrl = false
+    alt = true
+  else if e.touches.length == 4
+    ctrl = true
+    alt = true
+
+# Dispatch a new event if the current event need to
+# be modified with ctrlKey and altKey from touch events
+# If so, this function will return true and dispatch the new event.
+# The caller should return immediately upon receiving true.
+window.mobileKeydown = (e) ->
+  if ctrl or alt
+    _ctrlKey = ctrl
+    _altKey = alt
+    _keyCode = e.keyCode
+    if e.keyCode >= 97 && e.keyCode <= 122
+      _keyCode -= 32
+    e = new KeyboardEvent 'keydown',
+      ctrlKey: _ctrlKey,
+      altKey: _altKey,
+      keyCode: _keyCode
+    ctrl = alt = false
+    setTimeout ->
+      window.dispatchEvent e
+    , 0
+    return true
+  else
+    return false

coffees/ext/new_term.coffee

@@ -0,0 +1,4 @@
+document.addEventListener 'keydown', (e) ->
+  return true unless e.altKey and e.keyCode is 79
+  open(location.origin)
+  cancel e

coffees/ext/pack.coffee

@@ -0,0 +1,29 @@
+tid = null
+packSize = 1000
+histSize = 100
+
+maybePack = ->
+  return unless butterfly.term.childElementCount > packSize + butterfly.rows
+  hist = document.getElementById 'packed'
+  packfrag = document.createDocumentFragment 'fragment'
+  for i in [0..packSize]
+    packfrag.appendChild butterfly.term.firstChild
+  pack = document.createElement 'div'
+  pack.classList.add 'pack'
+  pack.appendChild packfrag
+  hist.appendChild pack
+
+  hist.firstChild.remove() if hist.childElementCount > histSize
+
+  tid = setTimeout maybePack
+
+
+Terminal.on 'refresh', ->
+  clearTimeout tid if tid
+  maybePack()
+
+Terminal.on 'clear', ->
+  newHist = document.createElement 'div'
+  newHist.id = 'packed'
+  hist = document.getElementById 'packed'
+  butterfly.body.replaceChild newHist, hist

coffees/ext/popup.coffee

@@ -0,0 +1,36 @@
+
+class Popup
+  constructor: ->
+    @el = document.getElementById('popup')
+    @bound_click_maybe_close = @click_maybe_close.bind(@)
+    @bound_key_maybe_close = @key_maybe_close.bind(@)
+
+  open: (html) ->
+    @el.innerHTML = html
+    @el.classList.remove 'hidden'
+
+    addEventListener 'click', @bound_click_maybe_close
+    addEventListener 'keydown', @bound_key_maybe_close
+
+  close: ->
+    removeEventListener 'click', @bound_click_maybe_close
+    removeEventListener 'keydown', @bound_key_maybe_close
+
+    @el.classList.add 'hidden'
+    @el.innerHTML = ''
+
+  click_maybe_close: (e) ->
+    t = e.target
+    while t.parentElement
+      return true if Array.prototype.slice.call(@el.children).indexOf(t) > -1
+      t = t.parentElement
+    @close()
+    cancel e
+
+  key_maybe_close: (e) ->
+    return true unless e.keyCode is 27
+    @close()
+    cancel e
+
+popup = new Popup()
+

coffees/ext/selection.coffee

@@ -0,0 +1,259 @@
+# *-* coding: utf-8 *-*
+# This file is part of butterfly
+#
+# butterfly Copyright (C) 2015  Florian Mounier
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+selection = null
+
+cancel = (ev) ->
+  ev.preventDefault() if ev.preventDefault
+  ev.stopPropagation() if ev.stopPropagation
+  ev.cancelBubble = true
+  false
+
+previousLeaf = (node) ->
+  previous = node.previousSibling
+  if not previous
+    previous = node.parentNode.previousSibling
+  if not previous
+    previous = node.parentNode.parentNode.previousSibling
+  while previous.lastChild
+    previous = previous.lastChild
+  previous
+
+nextLeaf = (node) ->
+  next = node.nextSibling
+  if not next
+    next = node.parentNode.nextSibling
+  if not next
+    next = node.parentNode.parentNode.nextSibling
+  while next?.firstChild
+    next = next.firstChild
+  next
+
+class Selection
+  constructor: ->
+    butterfly.body.classList.add('selection')
+    @selection = getSelection()
+
+  reset: ->
+    @selection = getSelection()
+    fakeRange = document.createRange()
+    fakeRange.setStart(@selection.anchorNode, @selection.anchorOffset)
+    fakeRange.setEnd(@selection.focusNode, @selection.focusOffset)
+    @start =
+      node: @selection.anchorNode
+      offset: @selection.anchorOffset
+    @end =
+      node: @selection.focusNode
+      offset: @selection.focusOffset
+
+    if fakeRange.collapsed
+      [@start, @end] = [@end, @start]
+
+    @startLine = @start.node
+    while not @startLine.classList or 'line' not in @startLine.classList
+      @startLine = @startLine.parentNode
+
+    @endLine = @end.node
+    while not @endLine.classList or 'line' not in @endLine.classList
+      @endLine = @endLine.parentNode
+
+  clear: ->
+    @selection.removeAllRanges()
+
+  destroy: ->
+    butterfly.body.classList.remove('selection')
+    @clear()
+
+  text: ->
+    @selection.toString().replace(/\u00A0/g, ' ').replace(/\u2007/g, ' ')
+
+  up: ->
+    @go -1
+
+  down: ->
+    @go +1
+
+  go: (n) ->
+    index = Array.prototype.indexOf.call(
+      butterfly.term.childNodes, @startLine) + n
+    return unless 0 <= index < butterfly.term.childElementCount
+
+    until butterfly.term.childNodes[index].textContent.match /\S/
+      index += n
+      return unless 0 <= index < butterfly.term.childElementCount
+
+    @selectLine index
+
+  apply: ->
+    @clear()
+    range = document.createRange()
+    range.setStart @start.node, @start.offset
+    range.setEnd @end.node, @end.offset
+    @selection.addRange range
+
+  selectLine: (index) ->
+    line = butterfly.term.childNodes[index]
+    lineStart =
+      node: line.firstChild
+      offset: 0
+
+    lineEnd =
+      node: line.lastChild
+      offset: line.lastChild.textContent.length
+
+    @start = @walk lineStart, /\S/
+    @end = @walk lineEnd, /\S/, true
+
+  collapsed: (start, end) ->
+    fakeRange = document.createRange()
+    fakeRange.setStart(start.node, start.offset)
+    fakeRange.setEnd(end.node, end.offset)
+    fakeRange.collapsed
+
+  shrinkRight: ->
+    node = @walk @end, /\s/, true
+    end = @walk node, /\S/, true
+    if not @collapsed(@start, end)
+      @end = end
+
+  shrinkLeft: ->
+    node = @walk @start, /\s/
+    start = @walk node, /\S/
+    if not @collapsed(start, @end)
+      @start = start
+
+  expandRight: ->
+    node = @walk @end, /\S/
+    @end = @walk node, /\s/
+
+  expandLeft: ->
+    node = @walk @start, /\S/, true
+    @start = @walk node, /\s/, true
+
+  walk: (needle, til, backward=false) ->
+    if needle.node.firstChild
+      node = needle.node.firstChild
+    else
+      node = needle.node
+
+    text = node?.textContent
+    i = needle.offset
+    if backward
+      while node
+        while i > 0
+          if text[--i].match til
+            return node: node, offset: i + 1
+        node = previousLeaf node
+        text = node?.textContent
+        i = text.length
+    else
+      while node
+        while i < text.length
+          if text[i++].match til
+            return node: node, offset: i - 1
+        node = nextLeaf node
+        text = node?.textContent
+        i = 0
+
+    return needle
+
+document.addEventListener 'keydown', (e) ->
+  return true if e.keyCode in [16..19]
+
+  # Paste natural selection too if shiftkey
+  if e.shiftKey and e.keyCode is 13 and
+      not selection and not getSelection().isCollapsed
+    butterfly.send getSelection().toString()
+    getSelection().removeAllRanges()
+    return cancel e
+
+  if selection
+    selection.reset()
+    if not e.ctrlKey and e.shiftKey and 37 <= e.keyCode <= 40
+      return true
+    if e.shiftKey and e.ctrlKey
+      if e.keyCode == 38
+        selection.up()
+      else if e.keyCode == 40
+        selection.down()
+    else if e.keyCode == 39
+      selection.shrinkLeft()
+    else if e.keyCode == 38
+      selection.expandLeft()
+    else if e.keyCode == 37
+      selection.shrinkRight()
+    else if e.keyCode == 40
+      selection.expandRight()
+    else
+      return cancel e
+
+    selection?.apply()
+    return cancel e
+
+  # Start selection mode with shift up
+  if not selection and e.ctrlKey and e.shiftKey and e.keyCode == 38
+    r = Math.max butterfly.term.childElementCount - butterfly.rows, 0
+    selection = new Selection()
+    selection.selectLine r + butterfly.y - 1
+    selection.apply()
+    return cancel e
+  true
+
+document.addEventListener 'keyup', (e) ->
+  return true if e.keyCode in [16..19]
+
+  if selection
+    if e.keyCode == 13
+      butterfly.send selection.text()
+      selection.destroy()
+      selection = null
+      return cancel e
+    if e.keyCode not in [37..40]
+      selection.destroy()
+      selection = null
+      return true
+  true
+
+document.addEventListener 'dblclick', (e) ->
+  return if e.ctrlKey or e.altkey
+  sel = getSelection()
+  return if sel.isCollapsed or sel.toString().match /\s/
+
+  range = document.createRange()
+  range.setStart(sel.anchorNode, sel.anchorOffset)
+  range.setEnd(sel.focusNode, sel.focusOffset)
+  if range.collapsed
+    sel.removeAllRanges()
+    newRange = document.createRange()
+    newRange.setStart(sel.focusNode, sel.focusOffset)
+    newRange.setEnd(sel.anchorNode, sel.anchorOffset)
+    sel.addRange(newRange)
+
+  until sel.toString().match(/\s/) or not sel.toString()
+    sel.modify 'extend', 'forward', 'character'
+
+  sel.modify 'extend', 'backward', 'character'
+
+  # Return selection
+  anchorNode = sel.anchorNode
+  anchorOffset = sel.anchorOffset
+  sel.collapseToEnd()
+  sel.extend(anchorNode, anchorOffset)
+
+  until sel.toString().match(/\s/) or not sel.toString()
+    sel.modify 'extend', 'backward', 'character'
+
+  sel.modify 'extend', 'forward', 'character'

coffees/ext/sessions.coffee

@@ -0,0 +1,22 @@
+document.addEventListener 'keydown', (e) ->
+  return true unless e.altKey and e.keyCode is 69
+  oReq = new XMLHttpRequest()
+  oReq.addEventListener 'load', ->
+    response = JSON.parse(@responseText)
+    out = '<div>'
+    out += '<h2>Session list</h2>'
+    if response.sessions.length is 0
+      out += "No current session for user #{response.user}"
+    else
+      out += '<ul>'
+      for session in response.sessions
+        out += "<li><a href=\"/session/#{session}\">#{session}</a></li>"
+      out += '</ul>'
+
+    out += '</div>'
+
+    popup.open out
+
+  oReq.open("GET", "/sessions/list.json")
+  oReq.send()
+  cancel e

coffees/ext/theme.coffee

@@ -0,0 +1,80 @@
+_set_theme_href = (href) ->
+  document.getElementById('style').setAttribute('href', href)
+  img = document.createElement('img')
+  img.onerror = ->
+    setTimeout (-> butterfly?.resize()), 250
+  img.src = href
+
+_theme = localStorage?.getItem('theme')
+_set_theme_href(_theme) if _theme
+
+@set_theme = (theme) ->
+  _theme = theme
+  localStorage?.setItem('theme', theme)
+  _set_theme_href(theme) if theme
+
+document.addEventListener 'keydown', (e) ->
+  return true unless e.altKey and e.keyCode is 83
+  if e.shiftKey
+    style = document.getElementById('style').getAttribute('href')
+    style = style.split('?')[0]
+    _set_theme_href style + '?' + (new Date().getTime())
+    return cancel(e)
+
+
+  oReq = new XMLHttpRequest()
+  oReq.addEventListener 'load', ->
+    response = JSON.parse(@responseText)
+    builtin_themes = response.builtin_themes
+    themes = response.themes
+
+    # if themes.length is 0
+    #   alert("No themes found in #{response.dir}.\n
+    #   Please install themes with butterfly.server.py --install-themes")
+    #   return
+
+    inner = """
+        <form>
+          <h2>Pick a theme:</h2>
+          <select id="theme_list">
+    """
+    option = (url, theme) ->
+      inner += '<option '
+
+      if _theme is url
+        inner += 'selected '
+
+      inner += "value=\"#{url}\">"
+      inner += theme
+      inner += '</option>'
+
+    option "/static/main.css", 'default'
+
+    if themes.length
+      inner += '<optgroup label="Local themes">'
+      for theme in themes
+        url = "/theme/#{theme}/style.css"
+        option url, theme
+      inner += '</optgroup>'
+
+    inner += '<optgroup label="Built-in themes">'
+    for theme in builtin_themes
+      url = "/theme/#{theme}/style.css"
+      option url, theme.slice('built-in-'.length)
+    inner += '</optgroup>'
+
+    inner += """
+        </select>
+        <label>You can create yours in #{response.dir}.</label>
+      </form>
+    """
+    popup.open inner
+
+    theme_list = document.getElementById('theme_list')
+
+    theme_list.addEventListener 'change', -> set_theme theme_list.value
+
+  oReq.open("GET", "/themes/list.json")
+  oReq.send()
+
+  cancel e

coffees/main.coffee

@@ -0,0 +1,125 @@
+# *-* coding: utf-8 *-*
+# This file is part of butterfly
+#
+# butterfly Copyright(C) 2015-2017 Florian Mounier
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+cols = rows = null
+quit = false
+openTs = (new Date()).getTime()
+
+ws =
+  shell: null
+  ctl: null
+
+$ = document.querySelectorAll.bind(document)
+
+document.addEventListener 'DOMContentLoaded', ->
+  term = null
+
+  if location.protocol == 'https:'
+    wsUrl = 'wss://'
+  else
+    wsUrl = 'ws://'
+
+  rootPath = document.body.getAttribute('data-root-path')
+  rootPath = rootPath.replace(/^\/+|\/+$/g, '')
+  if rootPath.length
+    rootPath = "/#{rootPath}"
+
+  wsUrl += document.location.host + rootPath
+  path = '/'
+  if path.indexOf('/session') < 0
+    path += "session/#{document.body.getAttribute('data-session-token')}"
+
+  path += location.search
+
+  ws.shell = new WebSocket wsUrl + '/ws' + path
+  ws.ctl = new WebSocket wsUrl + '/ctl' + path
+
+  open = ->
+    console.log "WebSocket open", arguments
+
+    if term
+      term.body.classList.remove 'stopped'
+      term.out = ws.shell.send.bind(ws.shell)
+      term.out '\x03\n'
+      return
+
+    if (ws.shell.readyState is WebSocket.OPEN and
+        ws.ctl.readyState is WebSocket.OPEN)
+
+      term = new Terminal(
+        document.body, ws.shell.send.bind(ws.shell), ws.ctl.send.bind(ws.ctl))
+      term.ws = ws
+      window.butterfly = term
+      ws.ctl.send JSON.stringify(cmd: 'open')
+      ws.ctl.send JSON.stringify(
+        cmd: 'size', cols: term.cols, rows: term.rows)
+      openTs = (new Date()).getTime()
+    console.log "WebSocket open end", arguments
+
+  error = ->
+    console.error "WebSocket error", arguments
+
+  close = ->
+    console.log "WebSocket closed", arguments
+    return if quit
+    quit = true
+
+    term.write 'Closed'
+    # Allow quick reload
+    term.skipNextKey = true
+    term.body.classList.add('dead')
+    # Don't autoclose if websocket didn't last 1 minute
+    if (new Date()).getTime() - openTs > 60 * 1000
+      window.open('','_self').close()
+
+  reopenOnClose = ->
+    setTimeout ->
+      return if quit
+      ws.shell = new WebSocket wsUrl + '/ws' + path
+      init_shell_ws()
+    , 100
+
+  write = (data) ->
+    if term
+      term.write data
+
+  write_request = (e) ->
+    setTimeout write, 1, e.data
+
+  ctl = (e) ->
+    cmd = JSON.parse(e.data)
+    if cmd.cmd is 'size'
+      term.resize cmd.cols, cmd.rows, true
+
+  init_shell_ws = ->
+    ws.shell.addEventListener 'open', open
+    ws.shell.addEventListener 'message', write_request
+    ws.shell.addEventListener 'error', error
+    ws.shell.addEventListener 'close', reopenOnClose
+
+  init_ctl_ws = ->
+    ws.ctl.addEventListener 'open', open
+    ws.ctl.addEventListener 'message', ctl
+    ws.ctl.addEventListener 'error', error
+    ws.ctl.addEventListener 'close', close
+
+  init_shell_ws()
+  init_ctl_ws()
+
+  addEventListener 'beforeunload', ->
+    if not quit
+      'This will exit the terminal session'

dev.py

@@ -1,49 +0,0 @@
-#!/usr/bin/env python
-from multiprocessing import Process
-from subprocess import Popen
-from glob import glob
-import time
-import sys
-import shlex
-
-commands = [
-    'coffee -wcb -j butterfly/static/javascripts/main.js ' +
-    'butterfly/static/coffees/term.coffee ' +
-    'butterfly/static/coffees/backsel.coffee ' +
-    'butterfly/static/coffees/virtual_input.coffee ' +
-    'butterfly/static/coffees/main.coffee ',
-    'coffee -wcb -o butterfly/static/javascripts/ ' +
-    'butterfly/static/coffees/worker.coffee',
-    'compass watch butterfly/static',
-    'python butterfly.server.py ' + ' '.join(sys.argv[1:])
-]
-
-
-class Run(Process):
-    daemon = True
-
-    def __init__(self, command, *args, **kwargs):
-        super(Run, self).__init__(*args, **kwargs)
-        self.cmd = command
-
-    def run(self):
-        try:
-            while True:
-                self.proc = Popen(shlex.split(self.cmd))
-                self.proc.wait()
-                print(self.cmd + ' exited. Relaunching in 250ms')
-                time.sleep(.25)
-        except KeyboardInterrupt:
-            pass
-
-process = [Run(cmd) for cmd in commands]
-for proc in process:
-    print('Lauching %s' % proc.cmd.split(' ')[0])
-    proc.start()
-
-try:
-    for proc in process:
-        proc.join()
-    print('Joined')
-except KeyboardInterrupt:
-    print('\nGot [ctrl]+[c] -- bye bye')

docker/run.sh

@@ -0,0 +1,14 @@
+#!/bin/bash -e
+
+# if command starts with an option, prepend the default command and options
+if [ "${1:0:1}" = '-' ]; then
+  set -- butterfly.server.py --unsecure --host=0.0.0.0 --port=${PORT:-57575} "$@"
+elif [ "$1" = 'butterfly.server.py' ]; then
+  shift
+  set -- butterfly.server.py --unsecure --host=0.0.0.0 --port=${PORT:-57575} "$@"
+fi
+
+# Set password
+echo "root:${PASSWORD:-password}" | chpasswd
+
+exec "$@"

package.json

@@ -0,0 +1,25 @@
+{
+  "name": "butterfly",
+  "version": "3.0.0",
+  "description": "A sleek web based terminal emulator",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/paradoxxxzero/butterfly.git"
+  },
+  "private": true,
+  "license": "GPLv3",
+  "bugs": {
+    "url": "https://github.com/paradoxxxzero/butterfly/issues"
+  },
+  "homepage": "https://github.com/paradoxxxzero/butterfly",
+  "devDependencies": {
+    "coffeelint": "^1.15.7",
+    "grunt": "^1.0.1",
+    "grunt-coffeelint": "0.0.15",
+    "grunt-contrib-coffee": "^1.0.0",
+    "grunt-contrib-cssmin": "^1.0.1",
+    "grunt-contrib-uglify": "^1.0.1",
+    "grunt-contrib-watch": "^1.0.0",
+    "grunt-sass": "^2.1.0"
+  }
+}

requirements.txt

@@ -1 +1 @@
-tornado
+tornado>=3.2

scripts/b

@@ -0,0 +1 @@
+butterfly

scripts/butterfly

@@ -0,0 +1,43 @@
+#!/usr/bin/env python
+import os
+import sys
+import argparse
+
+if (os.getenv('COLORTERM', '') != 'butterfly' and
+    len(sys.argv) == 1) or (
+        os.getenv('COLORTERM', '') == 'butterfly' and
+        len(sys.argv) > 1 and sys.argv[1] == 'run'):
+    os.execvp('butterfly.server.py', [
+        'butterfly', '--unsecure', '--port=0', '--one-shot'])
+
+path = os.getenv('BUTTERFLY_PATH')
+if not path:
+    try:
+        import butterfly
+        path = os.path.join(
+            os.path.dirname(butterfly.__file__), 'bin')
+    except Exception:
+        pass
+    os.putenv('BUTTERFLY_PATH', path)
+if path is None:
+    print("Can't get butterfly path. Aborting.")
+    sys.exit(1)
+
+parser = argparse.ArgumentParser(
+    add_help=False,
+    description='Butterfly launcher. Please specify a command')
+parser.add_argument('-h', '--help', action="store_true",
+                    help="show this help message and exit")
+parser.add_argument(
+    'command',
+    nargs='?',
+    choices=[x[:-3] for x in os.listdir(path) if x.endswith('.py')])
+
+args, _ = parser.parse_known_args()
+
+if not args.command:
+    parser.print_help()
+else:
+    file_ = os.path.join(path, '%s.py' % args.command)
+    sys.argv = sys.argv[1:]
+    exec(compile(open(file_).read(), file_, 'exec'))

setup.cfg

@@ -0,0 +1,7 @@
+[bdist_wheel]
+universal = 1
+
+[tool:pytest]
+flake8-ignore =
+  *.py E731 E402
+  butterfly/bin/help.py E501

setup.py

@@ -5,41 +5,53 @@
 Butterfly - A sleek web based terminal emulator
 """
 import os
-import re
+
 from setuptools import setup
 
-ROOT = os.path.dirname(__file__)
-with open(os.path.join(ROOT, 'butterfly', '__init__.py')) as fd:
-    __version__ = re.search("__version__ = '([^']+)'", fd.read()).group(1)
+about = {}
+with open(os.path.join(
+        os.path.dirname(__file__), "butterfly", "__about__.py")) as f:
+    exec(f.read(), about)
 
-options = dict(
-    name="butterfly",
-    version=__version__,
-    description="A sleek web based terminal emulator",
-    long_description="See http://github.com/paradoxxxzero/butterfly",
-    author="Florian Mounier",
-    author_email="paradoxxx.zero@gmail.com",
-    url="http://github.com/paradoxxxzero/butterfly",
-    license="GPLv3",
+setup(
+    name=about['__title__'],
+    version=about['__version__'],
+    description=about['__summary__'],
+    url=about['__uri__'],
+    author=about['__author__'],
+    author_email=about['__email__'],
+    license=about['__license__'],
     platforms="Any",
-    scripts=['butterfly.server.py'],
+    scripts=['butterfly.server.py', 'scripts/butterfly', 'scripts/b'],
     packages=['butterfly'],
-    install_requires=["tornado"],
+    install_requires=["tornado>=3.2", "pyOpenSSL"],
+    extras_require={
+        'themes': ["libsass"],
+        'systemd': ['tornado_systemd'],
+        'lint': ['pytest', 'pytest-flake8', 'pytest-isort']
+    },
     package_data={
         'butterfly': [
+            'sass/*.sass',
+            'themes/*.*',
+            'themes/*/*.*',
+            'themes/*/*/*.*',
             'static/fonts/*',
-            'static/stylesheets/main.css',
-            'static/javascripts/main.js',
-            'templates/index.html'
+            'static/images/favicon.png',
+            'static/main.css',
+            'static/html-sanitizer.js',
+            'static/*.min.js',
+            'templates/index.html',
+            'bin/*',
+            'templates/motd',
+            'butterfly.conf.default'
         ]
     },
     classifiers=[
-        "Development Status :: 4 - Beta",
+        "Development Status :: 5 - Production/Stable",
         "Intended Audience :: Developers",
         "License :: OSI Approved :: GNU General Public License v3 (GPLv3)",
         "Operating System :: POSIX :: Linux",
         "Programming Language :: Python :: 2",
         "Programming Language :: Python :: 3",
         "Topic :: Terminals"])
-
-setup(**options)