/usr/share/pyshared/pida/utils/pywebbrowser.py is in pida 0.5.1-6.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 | """Interfaces for launching and remotely controlling Web browsers."""
import os
import sys
__all__ = ["Error", "open", "get", "register"]
class Error(Exception):
pass
_browsers = {} # Dictionary of available browser controllers
_tryorder = [] # Preference order of available browsers
def register(name, klass, instance=None):
"""Register a browser connector and, optionally, connection."""
_browsers[name.lower()] = [klass, instance]
def get(using=None):
"""Return a browser launcher instance appropriate for the environment."""
if using is not None:
alternatives = [using]
else:
alternatives = _tryorder
for browser in alternatives:
if '%s' in browser:
# User gave us a command line, don't mess with it.
return GenericBrowser(browser)
else:
# User gave us a browser name.
try:
command = _browsers[browser.lower()]
except KeyError:
command = _synthesize(browser)
if command[1] is None:
return command[0]()
else:
return command[1]
raise Error("could not locate runnable browser")
# Please note: the following definition hides a builtin function.
def open(url, new=0, autoraise=1):
get().open(url, new, autoraise)
def open_new(url):
get().open(url, 1)
def _synthesize(browser):
"""Attempt to synthesize a controller base on existing controllers.
This is useful to create a controller when a user specifies a path to
an entry in the BROWSER environment variable -- we can copy a general
controller to operate using a specific installation of the desired
browser in this way.
If we can't create a controller in this way, or if there is no
executable for the requested browser, return [None, None].
"""
if not os.path.exists(browser):
return [None, None]
name = os.path.basename(browser)
try:
command = _browsers[name.lower()]
except KeyError:
return [None, None]
# now attempt to clone to fit the new name:
controller = command[1]
if controller and name.lower() == controller.basename:
import copy
controller = copy.copy(controller)
controller.name = browser
controller.basename = os.path.basename(browser)
register(browser, None, controller)
return [None, controller]
return [None, None]
def _iscommand(cmd):
"""Return True if cmd can be found on the executable search path."""
path = os.environ.get("PATH")
if not path:
return False
for d in path.split(os.pathsep):
exe = os.path.join(d, cmd)
if os.path.isfile(exe):
return True
return False
PROCESS_CREATION_DELAY = 4
class GenericBrowser:
def __init__(self, cmd):
self.name, self.args = cmd.split(None, 1)
self.basename = os.path.basename(self.name)
def open(self, url, new=0, autoraise=1):
assert "'" not in url
command = "%s %s" % (self.name, self.args)
os.system(command % url)
def open_new(self, url):
self.open(url)
class Netscape:
"Launcher class for Netscape browsers."
def __init__(self, name):
self.name = name
self.basename = os.path.basename(name)
def _remote(self, action, autoraise):
raise_opt = ("-noraise", "-raise")[autoraise]
cmd = "%s %s -remote '%s' >/dev/null 2>&1" % (self.name,
raise_opt,
action)
rc = os.system(cmd)
if rc:
import time
os.system("%s &" % self.name)
time.sleep(PROCESS_CREATION_DELAY)
rc = os.system(cmd)
return not rc
def open(self, url, new=0, autoraise=1):
if new:
self._remote("openURL(%s,new-window)"%url, autoraise)
else:
self._remote("openURL(%s)" % url, autoraise)
def open_new(self, url):
self.open(url, 1)
class Galeon:
"""Launcher class for Galeon browsers."""
def __init__(self, name):
self.name = name
self.basename = os.path.basename(name)
def _remote(self, action, autoraise):
raise_opt = ("--noraise", "")[autoraise]
cmd = "%s %s %s >/dev/null 2>&1" % (self.name, raise_opt, action)
rc = os.system(cmd)
if rc:
import time
os.system("%s >/dev/null 2>&1 &" % self.name)
time.sleep(PROCESS_CREATION_DELAY)
rc = os.system(cmd)
return not rc
def open(self, url, new=0, autoraise=1):
if new:
self._remote("-w '%s'" % url, autoraise)
else:
self._remote("-n '%s'" % url, autoraise)
def open_new(self, url):
self.open(url, 1)
class Konqueror:
"""Controller for the KDE File Manager (kfm, or Konqueror).
See http://developer.kde.org/documentation/other/kfmclient.html
for more information on the Konqueror remote-control interface.
"""
def __init__(self):
if _iscommand("konqueror"):
self.name = self.basename = "konqueror"
else:
self.name = self.basename = "kfm"
def _remote(self, action):
cmd = "kfmclient %s >/dev/null 2>&1" % action
rc = os.system(cmd)
if rc:
import time
if self.basename == "konqueror":
os.system(self.name + " --silent &")
else:
os.system(self.name + " -d &")
time.sleep(PROCESS_CREATION_DELAY)
rc = os.system(cmd)
return not rc
def open(self, url, new=1, autoraise=1):
# XXX Currently I know no way to prevent KFM from
# opening a new win.
assert "'" not in url
self._remote("openURL '%s'" % url)
open_new = open
class Grail:
# There should be a way to maintain a connection to Grail, but the
# Grail remote control protocol doesn't really allow that at this
# point. It probably neverwill!
def _find_grail_rc(self):
import glob
import pwd
import socket
import tempfile
tempdir = os.path.join(tempfile.gettempdir(),
".grail-unix")
user = pwd.getpwuid(os.getuid())[0]
filename = os.path.join(tempdir, user + "-*")
maybes = glob.glob(filename)
if not maybes:
return None
s = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
for fn in maybes:
# need to PING each one until we find one that's live
try:
s.connect(fn)
except socket.error:
# no good; attempt to clean it out, but don't fail:
try:
os.unlink(fn)
except IOError:
pass
else:
return s
def _remote(self, action):
s = self._find_grail_rc()
if not s:
return 0
s.send(action)
s.close()
return 1
def open(self, url, new=0, autoraise=1):
if new:
self._remote("LOADNEW " + url)
else:
self._remote("LOAD " + url)
def open_new(self, url):
self.open(url, 1)
class WindowsDefault:
def open(self, url, new=0, autoraise=1):
os.startfile(url)
def open_new(self, url):
self.open(url)
#
# Platform support for Unix
#
# This is the right test because all these Unix browsers require either
# a console terminal of an X display to run. Note that we cannot split
# the TERM and DISPLAY cases, because we might be running Python from inside
# an xterm.
if os.environ.get("TERM") or os.environ.get("DISPLAY"):
_tryorder = ["links", "lynx", "w3m"]
# Easy cases first -- register console browsers if we have them.
if os.environ.get("TERM"):
# The Links browser <http://artax.karlin.mff.cuni.cz/~mikulas/links/>
if _iscommand("links"):
register("links", None, GenericBrowser("links '%s'"))
# The Lynx browser <http://lynx.browser.org/>
if _iscommand("lynx"):
register("lynx", None, GenericBrowser("lynx '%s'"))
# The w3m browser <http://ei5nazha.yz.yamagata-u.ac.jp/~aito/w3m/eng/>
if _iscommand("w3m"):
register("w3m", None, GenericBrowser("w3m '%s'"))
# X browsers have more in the way of options
if os.environ.get("DISPLAY"):
_tryorder = ["galeon", "skipstone",
"mozilla-firefox", "mozilla-firebird", "mozilla", "netscape",
"kfm", "grail"] + _tryorder
# First, the Netscape series
for browser in ("mozilla-firefox", "mozilla-firebird",
"mozilla", "netscape"):
if _iscommand(browser):
register(browser, None, Netscape(browser))
# Next, Mosaic -- old but still in use.
if _iscommand("mosaic"):
register("mosaic", None, GenericBrowser(
"mosaic '%s' >/dev/null &"))
# Gnome's Galeon
if _iscommand("galeon"):
register("galeon", None, Galeon("galeon"))
# Skipstone, another Gtk/Mozilla based browser
if _iscommand("skipstone"):
register("skipstone", None, GenericBrowser(
"skipstone '%s' >/dev/null &"))
# Konqueror/kfm, the KDE browser.
if _iscommand("kfm") or _iscommand("konqueror"):
register("kfm", Konqueror, Konqueror())
# Grail, the Python browser.
if _iscommand("grail"):
register("grail", Grail, None)
class InternetConfig:
def open(self, url, new=0, autoraise=1):
ic.launchurl(url)
def open_new(self, url):
self.open(url)
#
# Platform support for Windows
#
if sys.platform[:3] == "win":
_tryorder = ["netscape", "windows-default"]
register("windows-default", WindowsDefault)
#
# Platform support for MacOS
#
try:
import ic
except ImportError:
pass
else:
# internet-config is the only supported controller on MacOS,
# so don't mess with the default!
_tryorder = ["internet-config"]
register("internet-config", InternetConfig)
#
# Platform support for OS/2
#
if sys.platform[:3] == "os2" and _iscommand("netscape.exe"):
_tryorder = ["os2netscape"]
register("os2netscape", None,
GenericBrowser("start netscape.exe %s"))
# OK, now that we know what the default preference orders for each
# platform are, allow user to override them with the BROWSER variable.
#
if "BROWSER" in os.environ:
# It's the user's responsibility to register handlers for any unknown
# browser referenced by this value, before calling open().
_tryorder[0:0] = os.environ["BROWSER"].split(os.pathsep)
for cmd in _tryorder:
if not cmd.lower() in _browsers:
if _iscommand(cmd.lower()):
register(cmd.lower(), None, GenericBrowser(
"%s '%%s'" % cmd.lower()))
cmd = None # to make del work if _tryorder was empty
del cmd
_tryorder = filter(lambda x: x.lower() in _browsers
or x.find("%s") > -1, _tryorder)
# what to do if _tryorder is now empty?
|