dbmakefakelib 1.0

dbmakefakelib is an experimental Python script that generates stub GUI libraries for the Linux version of Dropbox.<br /><br />You may want to use this if installing Dropbox on a Linux machine that doesn't have any of the following GUI libraries:<br /><br />libgtk-x11-2.0.so.0<br />libgdk-x11-2.0.so.0<br />libatk-1.0.so.0<br />libgdk_pixbuf-2.0.so.0<br />libpango-1.0.so.0<br /><br />This is quite common on server installations of Linux, which may be deliberately headless or with only a text console.<br /><br />By repeatedly executing the Dropbox daemon and seeing how it fails to start, the script uses gcc to build a fake library full of functions that do nothing. This seems to be sufficient to fool the Dropbox daemon into thinking the real libraries are there, so it starts up. It can then be set up to run as a background process as usual.<br /><br />Usage Example<br /><br />$ python dbmakefakelib.py<br />adding library libgtk-x11-2.0.so.0<br />adding library libgdk-x11-2.0.so.0<br />adding library libatk-1.0.so.0<br />adding library libgdk_pixbuf-2.0.so.0<br />adding library libpango-1.0.so.0<br />adding library libgobject-2.0.so.0<br />adding library libgmodule-2.0.so.0<br />adding library libgthread-2.0.so.0<br />adding library libglib-2.0.so.0<br />adding function gtk_tree_view_new<br />adding function gtk_toolbar_new<br />adding function g_threads_got_initialized<br />adding function gtk_grab_remove<br />adding function gtk_button_new<br />adding function gtk_frame_new<br />adding function gtk_major_version<br />... lots more of this ...<br />adding function g_static_rw_lock_writer_unlock<br />adding function g_value_set_boxed_take_ownership<br />adding function g_boxed_type_register_static<br />adding function g_datalist_clear<br />dropboxd ran for 15 seconds without quitting - success?<br /><br />(Note that this will take some time as dropboxd will likely be unsuccessfully executed almost 800 times before the fake library file is complete.)<br /><br />Source Code<br /><br />dbmakefakelib.py<br /><br />import commands, re, os, threading, time, sys<br /><br />WAIT_TIME = 15<br /><br />class monitor_thread(threading.Thread):<br /> def __init__(self):<br /> self.pulse()<br /> threading.Thread.__init__ (self)<br /><br /> def run(self):<br /> while time.time() - self.lasttime < WAIT_TIME:<br /> time.sleep(1)<br /> if self.lasttime > 0:<br /> print "dropboxd ran for %u seconds without quitting - success?" % WAIT_TIME<br /> commands.getstatusoutput("killall dropboxd")<br /><br /> def pulse(self):<br /> self.lasttime = time.time()<br /><br /> def stop(self):<br /> self.lasttime = 0<br /><br />mon = monitor_thread()<br />mon.start()<br /><br />try:<br /> r_undef = re.compile('ImportError: /.*/.dropbox-dist/(.*?): undefined symbol: (.*)')<br /> r_noso = re.compile('ImportError: (.*): cannot open shared object file: No such file or directory')<br /> ok = True<br /> errmsg = ""<br /> dropboxd = os.path.expanduser("~/.dropbox-dist/dropboxd")<br /><br /> def compile_fakelib():<br /> ret = commands.getstatusoutput("gcc -fPIC -shared -o ~/.dropbox-dist/fakelib fakelib.c")<br /> if ret[0] != 0:<br /> raise Exception, ret[1]<br /><br /> commands.getstatusoutput('echo "#define E(f) int f() {return 0;}" > fakelib.c')<br /> compile_fakelib()<br /><br /> while ok:<br /> ok = False<br /> mon.pulse()<br /> errmsg = commands.getoutput(dropboxd)<br /><br /> found = r_noso.findall(errmsg.split("n")[-1])<br /> if found != []:<br /> print "adding library " + found[0]<br /> commands.getstatusoutput("ln -s fakelib ~/.dropbox-dist/" + found[0])<br /> ok = True<br /><br /> found = r_undef.findall(errmsg.split("n")[-1])<br /> if found != []:<br /> print "adding function "+ found[0][1]<br /> ret = commands.getstatusoutput('echo "E(' + found[0][1] + ')" >> fakelib.c')<br /> compile_fakelib()<br /> ok = True<br />except:<br /> mon.stop()<br /> raise<br /><br />print errmsg<br />mon.stop()

Requirements:	No special requirements
Platforms:	*nix, Linux
Keyword:	Commandsgetstatusoutput Echo,  Compile Fakelib,  Daemon,  Dropbox,  Errmsg,  Fakelibc,  Found,  Function,  Library,  Linux,  Print,  Quotadding,  Recompile Importerror,  Script,  Selflasttime,  Shared,  Timetime,  Wait Time
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