Mercurial > libervia-backend
annotate frontends/src/jp/base.py @ 1605:0aded9648c5c
jp (base): added a self.disp method which manage verbosity and stderr + verbosity property
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Sun, 15 Nov 2015 23:25:58 +0100 |
| parents | 9ac78437000d |
| children | de785fcf9a7b |
| rev | line source |
|---|---|
| 0 | 1 #! /usr/bin/python |
| 2 # -*- coding: utf-8 -*- | |
| 3 | |
|
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4 # jp: a SAT command line tool |
| 1396 | 5 # Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015 Jérôme Poisson (goffi@goffi.org) |
| 0 | 6 |
|
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7 # This program is free software: you can redistribute it and/or modify |
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8 # it under the terms of the GNU Affero General Public License as published by |
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9 # the Free Software Foundation, either version 3 of the License, or |
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10 # (at your option) any later version. |
| 0 | 11 |
|
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12 # This program is distributed in the hope that it will be useful, |
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13 # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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15 # GNU Affero General Public License for more details. |
| 0 | 16 |
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17 # You should have received a copy of the GNU Affero General Public License |
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18 # along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 0 | 19 |
| 771 | 20 from sat.core.i18n import _ |
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21 |
| 0 | 22 global pbar_available |
| 23 pbar_available = True #checked before using ProgressBar | |
| 24 | |
| 25 ### logging ### | |
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26 import logging as log |
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27 log.basicConfig(level=log.DEBUG, |
| 0 | 28 format='%(message)s') |
| 29 ### | |
| 30 | |
| 31 import sys | |
| 817 | 32 import locale |
| 33 import os.path | |
| 34 import argparse | |
| 964 | 35 from gi.repository import GLib, GObject |
| 817 | 36 from glob import iglob |
| 37 from importlib import import_module | |
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38 from sat_frontends.tools.jid import JID |
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39 from sat_frontends.bridge.DBus import DBusBridgeFrontend |
| 817 | 40 from sat.core import exceptions |
| 41 import sat_frontends.jp | |
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42 from sat_frontends.jp.constants import Const as C |
| 0 | 43 try: |
| 817 | 44 import progressbar |
| 45 except ImportError: | |
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46 log.info (_('ProgressBar not available, please download it at http://pypi.python.org/pypi/progressbar')) |
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47 log.info (_('Progress bar deactivated\n--\n')) |
| 817 | 48 progressbar=None |
| 49 | |
| 50 #consts | |
| 51 prog_name = u"jp" | |
| 52 description = """This software is a command line tool for XMPP. | |
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53 Get the latest version at """ + C.APP_URL |
| 817 | 54 |
| 1396 | 55 copyleft = u"""Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015 Jérôme Poisson (aka Goffi) |
| 817 | 56 This program comes with ABSOLUTELY NO WARRANTY; |
| 57 This is free software, and you are welcome to redistribute it under certain conditions. | |
| 58 """ | |
| 0 | 59 |
| 60 | |
| 817 | 61 def unicode_decoder(arg): |
| 62 # Needed to have unicode strings from arguments | |
| 63 return arg.decode(locale.getpreferredencoding()) | |
| 814 | 64 |
| 0 | 65 |
| 817 | 66 class Jp(object): |
| 814 | 67 """ |
| 68 This class can be use to establish a connection with the | |
| 69 bridge. Moreover, it should manage a main loop. | |
| 70 | |
| 71 To use it, you mainly have to redefine the method run to perform | |
| 72 specify what kind of operation you want to perform. | |
| 73 | |
| 74 """ | |
| 817 | 75 def __init__(self): |
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76 try: |
| 817 | 77 self.bridge = DBusBridgeFrontend() |
| 78 except exceptions.BridgeExceptionNoService: | |
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79 print(_(u"Can't connect to SàT backend, are you sure it's launched ?")) |
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80 sys.exit(1) |
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81 except exceptions.BridgeInitError: |
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82 print(_(u"Can't init bridge")) |
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83 sys.exit(1) |
| 814 | 84 |
| 817 | 85 self.parser = argparse.ArgumentParser(formatter_class=argparse.RawDescriptionHelpFormatter, |
| 86 description=description) | |
| 87 | |
| 88 self._make_parents() | |
| 89 self.add_parser_options() | |
| 90 self.subparsers = self.parser.add_subparsers(title=_('Available commands'), dest='subparser_name') | |
| 91 self._auto_loop = False # when loop is used for internal reasons | |
| 92 self.need_loop = False # to set by commands when loop is needed | |
| 93 self._progress_id = None # TODO: manage several progress ids | |
| 94 self.quit_on_progress_end = True # set to False if you manage yourself exiting, or if you want the user to stop by himself | |
| 95 | |
| 96 @property | |
| 97 def version(self): | |
| 98 return self.bridge.getVersion() | |
| 814 | 99 |
| 817 | 100 @property |
| 101 def progress_id(self): | |
| 102 return self._progress_id | |
| 103 | |
| 104 @progress_id.setter | |
| 105 def progress_id(self, value): | |
| 106 self._progress_id = value | |
| 107 | |
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108 |
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109 @property |
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110 def verbosity(self): |
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111 try: |
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112 return self.args.verbose |
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113 except AttributeError: |
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114 return 0 |
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115 |
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116 def disp(self, msg, verbosity=0, error=False): |
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117 """Print a message to user |
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118 |
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119 @param msg(unicode): message to print |
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120 @param verbosity(int): minimal verbosity to display the message |
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121 @param error(bool): if True, print to stderr instead of stdout |
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122 """ |
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123 if self.verbosity >= verbosity: |
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124 if error: |
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125 print >>sys.stderr,msg |
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126 else: |
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127 print msg |
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128 |
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129 def addOnQuitCallback(self, callback, *args, **kwargs): |
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130 """Add a callback which will be called on quit command |
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131 |
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132 @param callback(callback): method to call |
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133 """ |
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134 try: |
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135 callbacks_list = self._onQuitCallbacks |
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136 except AttributeError: |
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137 callbacks_list = self._onQuitCallbacks = [] |
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138 finally: |
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139 callbacks_list.append((callback, args, kwargs)) |
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140 |
| 817 | 141 def _make_parents(self): |
| 142 self.parents = {} | |
| 143 | |
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144 # we have a special case here as the start-session option is present only if connection is not needed, |
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145 # so we create two similar parents, one with the option, the other one without it |
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146 for parent_name in ('profile', 'profile_session'): |
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147 parent = self.parents[parent_name] = argparse.ArgumentParser(add_help=False) |
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148 parent.add_argument("-p", "--profile", action="store", type=str, default='@DEFAULT@', help=_("Use PROFILE profile key (default: %(default)s)")) |
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149 parent.add_argument("--pwd", action="store", type=unicode, default='', metavar='PASSWORD', help=_("Password used to connect profile, if necessary")) |
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150 |
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151 profile_parent, profile_session_parent = self.parents['profile'], self.parents['profile_session'] |
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152 |
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153 connect_short, connect_long, connect_action, connect_help = "-c", "--connect", "store_true", _(u"Connect the profile before doing anything else") |
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154 profile_parent.add_argument(connect_short, connect_long, action=connect_action, help=connect_help) |
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155 |
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156 profile_session_connect_group = profile_session_parent.add_mutually_exclusive_group() |
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157 profile_session_connect_group.add_argument(connect_short, connect_long, action=connect_action, help=connect_help) |
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158 profile_session_connect_group.add_argument("--start-session", action="store_true", help=_("Start a profile session without connecting")) |
| 817 | 159 |
| 160 progress_parent = self.parents['progress'] = argparse.ArgumentParser(add_help=False) | |
| 161 if progressbar: | |
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162 progress_parent.add_argument("-P", "--progress", action="store_true", help=_("Show progress bar")) |
| 0 | 163 |
| 1600 | 164 verbose_parent = self.parents['verbose'] = argparse.ArgumentParser(add_help=False) |
| 165 verbose_parent.add_argument('--verbose', '-v', action='count', help=_(u"Add a verbosity level (can be used multiple times)")) | |
| 166 | |
| 817 | 167 def add_parser_options(self): |
| 168 self.parser.add_argument('--version', action='version', version=("%(name)s %(version)s %(copyleft)s" % {'name': prog_name, 'version': self.version, 'copyleft': copyleft})) | |
| 169 | |
| 170 def import_commands(self): | |
| 171 """ Automaticaly import commands to jp | |
| 172 looks from modules names cmd_*.py in jp path and import them | |
| 173 | |
| 174 """ | |
| 175 path = os.path.dirname(sat_frontends.jp.__file__) | |
| 176 modules = (os.path.splitext(module)[0] for module in map(os.path.basename, iglob(os.path.join(path, "cmd_*.py")))) | |
| 177 for module_name in modules: | |
| 178 module = import_module("sat_frontends.jp."+module_name) | |
| 179 try: | |
| 180 self.import_command_module(module) | |
| 181 except ImportError: | |
| 182 continue | |
| 0 | 183 |
| 817 | 184 def import_command_module(self, module): |
| 185 """ Add commands from a module to jp | |
| 186 @param module: module containing commands | |
| 187 | |
| 188 """ | |
| 189 try: | |
| 190 for classname in module.__commands__: | |
| 191 cls = getattr(module, classname) | |
| 192 except AttributeError: | |
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193 log.warning(_("Invalid module %s") % module) |
| 817 | 194 raise ImportError |
| 195 cls(self) | |
| 196 | |
| 197 def run(self, args=None): | |
| 198 self.args = self.parser.parse_args(args) | |
| 199 self.args.func() | |
| 200 if self.need_loop or self._auto_loop: | |
| 201 self._start_loop() | |
| 202 | |
| 203 def _start_loop(self): | |
|
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204 self.loop = GLib.MainLoop() |
| 814 | 205 try: |
| 206 self.loop.run() | |
| 207 except KeyboardInterrupt: | |
|
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208 log.info(_("User interruption: good bye")) |
| 0 | 209 |
| 817 | 210 def stop_loop(self): |
| 211 try: | |
| 212 self.loop.quit() | |
| 213 except AttributeError: | |
| 214 pass | |
|
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215 |
|
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216 def quitFromSignal(self, errcode=0): |
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217 """Same as self.quit, but from a signal handler |
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218 |
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219 /!\: return must be used after calling this method ! |
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220 """ |
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221 assert self.need_loop |
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222 # XXX: python-dbus will show a traceback if we exit in a signal handler with an error code |
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223 # so we use this little timeout trick to avoid it |
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224 GLib.timeout_add(0, self.quit, errcode) |
|
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225 |
| 817 | 226 def quit(self, errcode=0): |
|
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227 # first the onQuitCallbacks |
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228 try: |
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229 callbacks_list = self._onQuitCallbacks |
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230 except AttributeError: |
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231 pass |
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232 else: |
|
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233 for callback, args, kwargs in callbacks_list: |
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234 callback(*args, **kwargs) |
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235 |
| 817 | 236 self.stop_loop() |
| 237 if errcode: | |
| 238 sys.exit(errcode) | |
|
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239 |
| 814 | 240 def check_jids(self, jids): |
| 241 """Check jids validity, transform roster name to corresponding jids | |
|
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242 |
| 817 | 243 @param profile: profile name |
| 244 @param jids: list of jids | |
| 245 @return: List of jids | |
| 246 | |
| 814 | 247 """ |
|
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248 names2jid = {} |
|
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249 nodes2jid = {} |
| 393 | 250 |
| 814 | 251 for contact in self.bridge.getContacts(self.profile): |
|
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252 jid_s, attr, groups = contact |
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253 _jid = JID(jid_s) |
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254 try: |
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255 names2jid[attr["name"].lower()] = jid_s |
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256 except KeyError: |
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257 pass |
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258 |
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259 if _jid.node: |
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260 nodes2jid[_jid.node.lower()] = jid_s |
|
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261 |
| 817 | 262 def expand_jid(jid): |
|
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263 _jid = jid.lower() |
|
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264 if _jid in names2jid: |
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265 expanded = names2jid[_jid] |
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266 elif _jid in nodes2jid: |
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267 expanded = nodes2jid[_jid] |
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268 else: |
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269 expanded = jid |
| 965 | 270 return expanded.decode('utf-8') |
|
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271 |
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272 def check(jid): |
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273 if not jid.is_valid: |
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274 log.error (_("%s is not a valid JID !"), jid) |
| 817 | 275 self.quit(1) |
|
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276 |
| 814 | 277 dest_jids=[] |
|
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278 try: |
| 814 | 279 for i in range(len(jids)): |
| 817 | 280 dest_jids.append(expand_jid(jids[i])) |
| 814 | 281 check(dest_jids[i]) |
|
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282 except AttributeError: |
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283 pass |
| 0 | 284 |
| 814 | 285 return dest_jids |
| 0 | 286 |
| 817 | 287 def connect_profile(self, callback): |
|
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288 """ Check if the profile is connected and do it if requested |
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289 |
| 817 | 290 @param callback: method to call when profile is connected |
| 291 @exit: - 1 when profile is not connected and --connect is not set | |
| 292 - 1 when the profile doesn't exists | |
| 293 - 1 when there is a connection error | |
| 294 """ | |
| 295 # FIXME: need better exit codes | |
| 296 | |
|
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297 def cant_connect(failure): |
|
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298 log.error(_(u"Can't connect profile: {reason}").format(reason=failure)) |
|
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299 self.quit(1) |
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300 |
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301 def cant_start_session(failure): |
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302 log.error(_(u"Can't start {profile}'s session: {reason}").format(profile=self.profile, reason=failure)) |
| 817 | 303 self.quit(1) |
|
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304 |
| 817 | 305 self.profile = self.bridge.getProfileName(self.args.profile) |
| 0 | 306 |
| 817 | 307 if not self.profile: |
|
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308 log.error(_("The profile [{profile}] doesn't exist").format(profile=self.args.profile)) |
| 817 | 309 self.quit(1) |
| 310 | |
|
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311 try: |
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312 start_session = self.args.start_session |
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313 except AttributeError: |
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314 pass |
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315 else: |
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316 if start_session: |
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317 self.bridge.profileStartSession(self.args.pwd, self.profile, lambda dummy: callback(), cant_start_session) |
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318 self._auto_loop = True |
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319 return |
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320 elif not self.bridge.profileIsSessionStarted(self.profile): |
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321 if not self.args.connect: |
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322 log.error(_(u"Session for [{profile}] is not started, please start it before using jp, or use either --start-session or --connect option").format(profile=self.profile)) |
|
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323 self.quit(1) |
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324 else: |
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325 callback() |
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326 return |
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327 |
|
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328 |
|
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329 if not hasattr(self.args, 'connect'): |
|
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330 # a profile can be present without connect option (e.g. on profile creation/deletion) |
|
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331 return |
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332 elif self.args.connect is True: # if connection is asked, we connect the profile |
|
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|
333 self.bridge.asyncConnect(self.profile, self.args.pwd, lambda dummy: callback(), cant_connect) |
| 817 | 334 self._auto_loop = True |
| 814 | 335 return |
|
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336 else: |
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337 if not self.bridge.isConnected(self.profile): |
|
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338 log.error(_(u"Profile [{profile}] is not connected, please connect it before using jp, or use --connect option").format(profile=self.profile)) |
|
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|
339 self.quit(1) |
| 0 | 340 |
| 817 | 341 callback() |
| 342 | |
| 343 def get_full_jid(self, param_jid): | |
|
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|
344 """Return the full jid if possible (add main resource when find a bare jid)""" |
|
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345 _jid = JID(param_jid) |
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346 if not _jid.resource: |
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|
347 #if the resource is not given, we try to add the last known resource |
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348 last_resource = self.bridge.getMainResource(param_jid, self.profile) |
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349 if last_resource: |
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350 return "%s/%s" % (_jid.bare, last_resource) |
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351 return param_jid |
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352 |
| 817 | 353 def watch_progress(self): |
| 354 self.pbar = None | |
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355 GObject.timeout_add(10, self._progress_cb) |
| 0 | 356 |
| 817 | 357 def _progress_cb(self): |
| 358 if self.progress_id: | |
| 359 data = self.bridge.getProgress(self.progress_id, self.profile) | |
| 360 if data: | |
| 361 if not data['position']: | |
| 362 data['position'] = '0' | |
| 363 if not self.pbar: | |
| 364 #first answer, we must construct the bar | |
| 365 self.pbar = progressbar.ProgressBar(int(data['size']), | |
| 366 [_("Progress: "),progressbar.Percentage(), | |
| 367 " ", | |
| 368 progressbar.Bar(), | |
| 369 " ", | |
| 370 progressbar.FileTransferSpeed(), | |
| 371 " ", | |
| 372 progressbar.ETA()]) | |
| 373 self.pbar.start() | |
| 374 | |
| 375 self.pbar.update(int(data['position'])) | |
| 376 | |
| 377 elif self.pbar: | |
| 378 self.pbar.finish() | |
| 379 if self.quit_on_progress_end: | |
| 380 self.quit() | |
| 381 return False | |
| 382 | |
| 383 return True | |
| 814 | 384 |
| 385 | |
| 817 | 386 class CommandBase(object): |
| 814 | 387 |
| 1600 | 388 def __init__(self, host, name, use_profile=True, use_progress=False, use_verbose=False, need_connect=None, help=None, **kwargs): |
| 817 | 389 """ Initialise CommandBase |
| 390 @param host: Jp instance | |
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391 @param name(unicode): name of the new command |
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392 @param use_profile(bool): if True, add profile selection/connection commands |
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393 @param use_progress(bool): if True, add progress bar activation commands |
| 1600 | 394 @param use_verbose(bool): if True, add verbosity command |
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395 @param need_connect(bool, None): True if profile connection is needed |
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396 False else (profile session must still be started) |
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397 None to set auto value (i.e. True if use_profile is set) |
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398 Can't be set if use_profile is False |
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399 @param help(unicode): help message to display |
| 817 | 400 @param **kwargs: args passed to ArgumentParser |
| 401 | |
| 814 | 402 """ |
| 817 | 403 try: # If we have subcommands, host is a CommandBase and we need to use host.host |
| 404 self.host = host.host | |
| 405 except AttributeError: | |
| 406 self.host = host | |
| 407 | |
| 408 parents = kwargs.setdefault('parents', set()) | |
| 409 if use_profile: | |
| 410 #self.host.parents['profile'] is an ArgumentParser with profile connection arguments | |
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411 if need_connect is None: |
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412 need_connect = True |
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413 parents.add(self.host.parents['profile' if need_connect else 'profile_session']) |
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414 else: |
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415 assert need_connect is None |
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416 |
| 817 | 417 if use_progress: |
| 418 parents.add(self.host.parents['progress']) | |
| 419 | |
| 1600 | 420 if use_verbose: |
| 421 parents.add(self.host.parents['verbose']) | |
| 422 | |
| 817 | 423 self.parser = host.subparsers.add_parser(name, help=help, **kwargs) |
| 424 if hasattr(self, "subcommands"): | |
| 425 self.subparsers = self.parser.add_subparsers() | |
| 426 else: | |
| 427 self.parser.set_defaults(func=self.run) | |
| 428 self.add_parser_options() | |
| 429 | |
| 430 @property | |
| 431 def args(self): | |
| 432 return self.host.args | |
| 433 | |
| 434 @property | |
| 435 def need_loop(self): | |
| 436 return self.host.need_loop | |
| 437 | |
| 438 @need_loop.setter | |
| 439 def need_loop(self, value): | |
| 440 self.host.need_loop = value | |
| 441 | |
| 442 @property | |
| 443 def profile(self): | |
| 444 return self.host.profile | |
| 445 | |
| 446 @property | |
| 447 def progress_id(self): | |
| 448 return self.host.progress_id | |
| 814 | 449 |
| 817 | 450 @progress_id.setter |
| 451 def progress_id(self, value): | |
| 452 self.host.progress_id = value | |
| 453 | |
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454 def disp(self, msg, verbosity=0, error=False): |
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455 return self.host.disp(msg, verbosity, error) |
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456 |
| 817 | 457 def add_parser_options(self): |
| 458 try: | |
| 459 subcommands = self.subcommands | |
| 460 except AttributeError: | |
| 461 # We don't have subcommands, the class need to implements add_parser_options | |
| 462 raise NotImplementedError | |
| 463 | |
| 464 # now we add subcommands to ourself | |
| 465 for cls in subcommands: | |
| 466 cls(self) | |
| 814 | 467 |
| 817 | 468 def run(self): |
| 469 try: | |
| 470 if self.args.profile: | |
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471 connect_profile = self.host.connect_profile |
| 817 | 472 except AttributeError: |
| 473 # the command doesn't need to connect profile | |
| 474 pass | |
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475 else: |
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476 connect_profile(self.connected) |
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477 |
| 817 | 478 try: |
| 479 if self.args.progress: | |
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480 watch_progress = self.host.watch_progress |
| 817 | 481 except AttributeError: |
| 482 # the command doesn't use progress bar | |
| 483 pass | |
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parents:
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484 else: |
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485 watch_progress() |
| 817 | 486 |
| 487 def connected(self): | |
| 488 if not self.need_loop: | |
| 489 self.host.stop_loop() | |
| 490 | |
| 491 | |
| 492 class CommandAnswering(CommandBase): | |
| 493 #FIXME: temp, will be refactored when progress_bar/confirmations will be refactored | |
| 494 | |
| 495 def _ask_confirmation(self, confirm_id, confirm_type, data, profile): | |
| 496 """ Callback used for file transfer, accept files depending on parameters""" | |
|
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497 if profile != self.profile: |
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498 debug("Ask confirmation ignored: not our profile") |
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499 return |
| 817 | 500 if confirm_type == self.confirm_type: |
| 501 if self.dest_jids and not JID(data['from']).bare in [JID(_jid).bare for _jid in self.dest_jids()]: | |
| 0 | 502 return #file is not sent by a filtered jid |
| 503 else: | |
| 817 | 504 self.ask(data, confirm_id) |
| 0 | 505 |
| 814 | 506 def ask(self): |
| 507 """ | |
| 508 The return value is used to answer to the bridge. | |
| 817 | 509 @return: bool or dict |
| 814 | 510 """ |
| 511 raise NotImplementedError | |
|
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parents:
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changeset
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512 |
| 817 | 513 def connected(self): |
|
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514 """Auto reply to confirmations requests""" |
| 817 | 515 self.need_loop = True |
| 516 super(CommandAnswering, self).connected() | |
| 517 # we watch confirmation signals | |
| 518 self.host.bridge.register("ask_confirmation", self._ask_confirmation) | |
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519 |
|
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520 #and we ask those we have missed |
| 817 | 521 for confirm_id, confirm_type, data in self.host.bridge.getWaitingConf(self.profile): |
| 522 self._ask_confirmation(confirm_id, confirm_type, data, self.profile) |