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Edit File: pastebinit

#!/usr/bin/env python3
# -*- coding: utf-8 -*-

# Author: Stéphane Graber <stgraber@ubuntu.com>
# Written by Stéphane Graber <stgraber@stgraber.org>
#            Daniel Bartlett <dan@f-box.org>

# 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 2 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, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

from __future__ import print_function

import sys
from configparser import ConfigParser, NoOptionError
from urllib.parse import urlencode
from urllib import request

# Set the default pastebin
defaultPB = "dpaste.com"

# Now try to override it with a distributor pastebin
try:
    import distro
    release = distro.id()
    if release in ('debian', 'raspbian'):
        defaultPB = "paste.debian.net"
    elif release in ('fedora', 'centos', 'rhel', 'rocky'):
        defaultPB = "paste.centos.org"
except ImportError:
    pass

try:
    import getopt
    import gettext
    import os
    import re
    import socket
    import xml.dom.minidom

try:
        import json
    except ImportError:
        json = None

_ = gettext.gettext
    gettext.textdomain("pastebinit")

# Timeout after 5s
    socket.setdefaulttimeout(15)

# Version number to show in the usage
    version = "1.6.2"
    configfiles = []

for conffile in list(reversed(os.environ.get(
            'XDG_CONFIG_DIRS', '').split(':'))) + ['/etc', '/usr/local/etc',
               os.environ.get('XDG_CONFIG_HOME',
                   os.path.expanduser('~/.config')),
               os.path.expanduser('~/.pastebinit.xml')]:

conffile = conffile.rstrip('/')
        if not conffile.endswith('pastebinit.xml'):
            conffile = os.path.join(conffile, 'pastebinit.xml')
        if conffile not in configfiles:
            configfiles.append(conffile)

class PasteRequest(request.Request):
        version = "Pastebinit v%s" % version

def __init__(self, *args, **opts):
            super(PasteRequest, self).__init__(*args, **opts)
            if 'User-Agent' not in self.headers:
                self.add_header('User-Agent', self.version)

def preloadPastebins():
        # Check several places for config files:
        #  - global config in /etc/pastebin.d
        #  - for source checkout, config in the checkout
        #  - user's overrides in ~/.pastebin.d
        # Files found later override files found earlier.
        pastebind = {}
        confdirs = []
        for confdir in ['/usr/share', '/usr/local/share'] \
                + list(reversed(os.environ.get('XDG_DATA_DIRS', '').split(':'))) \
                + list(reversed(os.environ.get('XDG_CONFIG_DIRS', '').split(':'))) \
                + ['/etc', '/usr/local/etc',
                   os.environ.get('XDG_CONFIG_HOME',
                       os.path.expanduser('~/.config')),
                   os.path.expanduser('~/.pastebin.d')]:

confdir = confdir.rstrip('/')
            if not confdir.endswith('pastebin.d'):
                confdir = os.path.join(confdir, 'pastebin.d')
            if confdir not in confdirs:
                confdirs.append(confdir)

for confdir in confdirs:
            try:
                confdirlist = os.listdir(confdir)
            except OSError:
                continue

for fileitem in confdirlist:
                if fileitem.startswith('.') or not fileitem.endswith('.conf'):
                    continue

filename = os.path.join(confdir, fileitem)
                instance = ConfigParser()
                try:
                    instance.read(filename)
                except UnicodeError:
                    continue

if not instance.has_section('pastebin'):
                    print(_('%s: no section [pastebin]') % filename,
                          file=sys.stderr)
                    continue

if not instance.has_option('pastebin', 'basename'):
                    print(_("%s: no 'basename' in [pastebin]") % filename,
                          file=sys.stderr)
                    continue

pastebind[instance.get('pastebin', 'basename')] = instance
        return pastebind

# Return the configuration depending of the pastebin used
    def getConfig(website):
        for config in list(pastebind.values()):
            basename = config.get('pastebin', 'basename')
            try:
                https = config.get('pastebin', 'https')
            except:
                https = False

if basename == website:
                if https:
                    website = "https://%s/" % basename
                else:
                    website = "http://%s/" % basename
                return website, config['pastebin']

print(_("Unknown website, please post a bugreport to request "
                "this pastebin to be added (%s)") % website,
              file=sys.stderr)
        sys.exit(1)

# Return the parameters depending of the pastebin used
    def getParameters(website, content):
        config = pastebind[website]
        params = {}
        for param in config.options('format'):
            paramname = config.get('format', param)
            if param == 'content':
                params[paramname] = content
            else:
                params[paramname] = config.get('defaults', param,
                    vars=spec_opts, fallback=inline_opts.get(param))
        return params

# XML Handling methods
    def getText(nodelist):
        rc = ""
        for node in nodelist:
            if node.nodeType == node.TEXT_NODE:
                rc = rc + node.data
        return rc

def getNodes(nodes, title):
        return nodes.getElementsByTagName(title)

def getFirstNode(nodes, title):
        return getNodes(nodes, title)[0]

def getFirstNodeText(nodes, title):
        return getText(getFirstNode(nodes, title).childNodes)

# Display usage instructions
    def Usage(fd=sys.stdout):
        print("pastebinit v" + version, file=fd)
        print(_("\nReads on stdin for input or takes a list of files "
                "as parameters"), file=fd)
        print(_("\nUsage:\tpastebinit [OPTION...] [FILE...]"), file=fd)
        print(_("\nGeneral arguments:\n"), file=fd)
        print(_("\t-b <pastebin> (default is '%s')") % website, file=fd)
        print(_("\t-i <input file>"), file=fd)
        print(_("\t-l List all supported pastebins"), file=fd)
        print(_("\t-E Print the content to stdout too"), file=fd)
        print(_("\t-h Print this help screen"), file=fd)
        print(_("\t-v Print the version number"), file=fd)
        print(_("\t-V Print verbose output to stderr"), file=fd)
        print(_("\nOptional arguments (not supported by all pastebins):\n"),
              file=fd)
        print(_("\t-a <author> (default is '%s')") %
              inline_opts['user'], file=fd)
        print(_("\t-t <title of paste> (default is none)"), file=fd)
        print(_("\t-f <format of paste> (default is '%s')") %
              inline_opts['format'], file=fd)
        print(_("\t-j <jabberid> (default is '%s')") %
              inline_opts['jabberid'], file=fd)
        print(_("\t-m <permatag> (default is none)"),
              file=fd)
        print(_("\t-P <private level> (default is '%s')") %
              inline_opts['private'], file=fd)
        print(_("\t-u <username> -p <password>"), file=fd)

# Set defaults
    website = defaultPB
    inline_opts = {
        'user'      : os.environ.get('USER', os.environ.get('LOGNAME')),
        'jabberid'  : "",
        'title'     : "",
        'permatag'  : "",
        'format'    : "text",
        'private'   : 1,
        'username'  : "",
        'password'  : ""
    }
    spec_opts = {}
    filenames = []
    verbose = False
    echo = False

# Example configuration file string
    configexample = """\
<pastebinit>
    <pastebin>paste.debian.net</pastebin>
    <author>A pastebinit user</author>
    <jabberid>nobody@nowhere.org</jabberid>
    <format>text</format>
    <private>1</private>
</pastebinit>
"""

for configfile in configfiles:
        # Open configuration file if it exists
        try:
            f = open(configfile)
            configtext = f.read()
            f.close()
            gotconfigxml = True
        except KeyboardInterrupt:
            print(_("KeyboardInterrupt caught."), file=sys.stderr)
            sys.exit(1)
        except:
            gotconfigxml = False

# Parse configuration file
        if gotconfigxml:
            try:
                configxml = xml.dom.minidom.parseString(configtext)
                for variable, key in (('pastebin', 'website'),
                                      ('author', 'user'),
                                      ('format', 'format'),
                                      ('private', 'private'),
                                      ('jabberid', 'jabberid')):
                    try:
                        value = getFirstNodeText(configxml, variable)
                        if variable == 'pastebin':
                            website = value
                        else:
                            spec_opts[key] = value
                    except:
                        pass
            except KeyboardInterrupt:
                print(_("KeyboardInterrupt caught."), file=sys.stderr)
                sys.exit(1)
            except:
                print(_("Error parsing configuration file!"), file=sys.stderr)
                print(_("Please ensure that your configuration file looks "
                        "similar to the following:"), file=sys.stderr)
                print(configexample, file=sys.stderr)
                sys.exit(1)

# Get options
    try:
        optlist, arglist = getopt.getopt(sys.argv[1:],
                                         'EVP:hlva:b:f:i:t:j:m:u:p:')
    except KeyboardInterrupt:
        print(_("KeyboardInterrupt caught."), file=sys.stderr)
        sys.exit(1)
    except getopt.GetoptError as e:
        print((_("Invalid arguments: %s!") % e) + "\n", file=sys.stderr)
        Usage(sys.stderr)
        sys.exit(1)

# Get the configuration of all pastebins
    pastebind = preloadPastebins()

# Iterate through options
    for opt in optlist:
        if opt[0] == "-h":
            Usage()
            sys.exit(0)
        elif opt[0] == "-v":
            print("pastebinit v" + version)
            sys.exit(0)
        elif opt[0] == "-l":
            print(_("Supported pastebins:"))
            for pastebin in sorted(list(pastebind.keys())):
                print("- %s" % pastebin)
            sys.exit(0)
        elif opt[0] == "-b":
            website = opt[1]
        elif opt[0] == "-i":
            filenames.append(opt[1])
        elif opt[0] == "-a":
            spec_opts['user'] = opt[1]
        elif opt[0] == "-t":
            spec_opts['title'] = opt[1]
        elif opt[0] == "-f":
            spec_opts['format'] = opt[1]
        elif opt[0] == "-j":
            spec_opts['jabberid'] = opt[1]
        elif opt[0] == "-m":
            spec_opts['permatag'] = opt[1]
        elif opt[0] == "-P":
            spec_opts['private'] = opt[1]
        elif opt[0] == "-u":
            spec_opts['username'] = opt[1]
        elif opt[0] == "-p":
            spec_opts['password'] = opt[1]
        elif opt[0] == "-E":
            echo = True
        elif opt[0] == "-V":
            verbose = True

# Get the configuration
    if '://' in website:
        website = website.split('://')[1]
    website = website.strip('/')
    website, config = getConfig(website)

filenames += arglist

if not filenames:
        filenames.append("-")

contents = []
    for filename in filenames:
        # If - is specified as a filename read from stdin
        # otherwise load the specified files.
        content = ""
        if filename == "-":
            content = sys.stdin.read().rstrip()
        else:
            try:
                with open(filename, "r") as fd:
                    content = fd.read().rstrip()
            except KeyboardInterrupt:
                print(_("KeyboardInterrupt caught."), file=sys.stderr)
                sys.exit(1)
            except:
                print(_("Unable to read from: %s") % filename, file=sys.stderr)
                sys.exit(1)

if not content:
            print(_("You are trying to send an empty document, exiting."),
                  file=sys.stderr)
            sys.exit(1)

contents.append(content)
        if echo:
            print(content)

if "post_page" in config:
        # Use post page, without leading slash, website has a trailing one.
        post_url = website + config['post_page'].lstrip('/')
    else:
        post_url = website

if "paste_regexp" in config:
        reLink = config['paste_regexp']
    else:
        reLink = False

# Get target_page for replacement, only used with reLink.
    if "target_page" in config:
        relink_target_url = website + config['target_page'].lstrip('/')
        if not reLink:
            print("Warning: using target_page without paste_regexp.",
                  file=sys.stderr)
    elif reLink:
        relink_target_url = website

if "post_format" in config:
        post_format = config['post_format']
    else:
        post_format = 'standard'

if "user_length" in config:
        user_length = int(config['user_length'])
        user = pastebind[config['basename']].get('defaults', 'user',
                vars=spec_opts, fallback=inline_opts.get('user'))
        spec_opts['user'] = "%s~" % user[:user_length-1]

for content in contents:
        # Get the parameters
        params = getParameters(config['basename'], content)

if "sizelimit" in config:
            if len(content) > int(config['sizelimit']):
                print(_("The content you are trying to send exceeds "
                        "the pastebin's size limit."), file=sys.stderr)
                sys.exit(1)

req = PasteRequest(post_url)

if post_format == 'json':
            if json:
                params = bytes(json.dumps(params), encoding='US-ASCII')
                req.add_header('Content-Type', 'text/json')
            else:
                print(_("Could not find any JSON library."), file=sys.stderr)
                sys.exit(1)
        else:
            # Convert to a format usable with the HTML POST
            params = bytes(urlencode(params), encoding='US-ASCII')

# Send the informations and be redirected to the final page
        if verbose:
            print("POSTing to: %s\nParams: %s" % (
                  post_url, str(params)), file=sys.stderr)
        try:
            page = request.urlopen(req, params)
        except Exception as e:
            print(_("Failed to contact the server: %s") % e, file=sys.stderr)
            sys.exit(1)

try:
            # Check if we have to apply a regexp
            paste_url = ""
            if reLink:
                result = page.read().decode('utf-8').strip()
                if reLink == '(.*)':
                    paste_url = result
                else:
                    # Print the result of the regexp
                    result = re.split(reLink, result)[1]
                    if '%s' not in relink_target_url:
                        paste_url = relink_target_url + result
                    else:
                        paste_url = relink_target_url % result
            else:
                # Get the final page
                paste_url = page.url

# Print the paste URL
            if echo:
                print("-" * len(paste_url))
            print(paste_url)
        except KeyboardInterrupt:
            print(_("KeyboardInterrupt caught."), file=sys.stderr)
            sys.exit(1)
        except:
            print(_("Unable to read or parse the result page, it could be a "
                    "server timeout or a change server side, "
                    "try with another pastebin."), file=sys.stderr)
            sys.exit(1)

except KeyboardInterrupt:
    print(_("KeyboardInterrupt caught."), file=sys.stderr)
    sys.exit(1)