X-Git-Url: https://git.phdru.name/?p=xsetbg.git;a=blobdiff_plain;f=xsetbg.py;h=ac55e25f4271ae60c300ead1650c5287e88009a8;hp=6fe73a8c5444b0ba3b648755ce4ab3b1bf38d492;hb=21192b521520392055185f65e5764800edb41f32;hpb=5da2f9851abc6ac5e00de55de009cb826385f7b5 diff --git a/xsetbg.py b/xsetbg.py index 6fe73a8..ac55e25 100755 --- a/xsetbg.py +++ b/xsetbg.py @@ -3,33 +3,30 @@ Select a random image from a (list of) directory(s) and set it as the desktop wallpaper (display it in the root window) -using xli or xsetbg programs. +using xli program. """ -__version__ = "$Revision$"[11:-2] -__revision__ = "$Id$"[5:-2] -__date__ = "$Date$"[7:-2] - -__author__ = "Oleg Broytman " -__copyright__ = "Copyright (C) 2000-2010 PhiloSoft Design" +__author__ = "Oleg Broytman " +__copyright__ = "Copyright (C) 2000-2014 PhiloSoft Design" __license__ = "GNU GPL" +__all__ = ['host', 'port', 'change'] -import sys, os -from ConfigParser import SafeConfigParser import anydbm +from fcntl import flock, LOCK_EX, LOCK_UN, LOCK_NB +from datetime import timedelta +import os import random +import re import shelve import subprocess +import sys from time import time -from fcntl import flock, LOCK_EX, LOCK_UN, LOCK_NB -from wsgiref import simple_server -from wsgiref.handlers import SimpleHandler -from wsgiref.simple_server import WSGIServer, make_server -simple_server.ServerHandler = SimpleHandler # Stop logging to stdout +from xsetbg_conf import xsetbg_dir, xsetbg_conf +from xsetbg_db import xsetbg_db def error(error_str, error_code=1): @@ -37,27 +34,21 @@ def error(error_str, error_code=1): sys.exit(error_code) -xsetbg_dir = os.path.dirname(os.path.abspath(__file__)) -os.chdir(xsetbg_dir) - -config = SafeConfigParser() -config.read("xsetbg.conf") - -if config.has_option("images", "directory") or \ - config.has_option("images", "directory0") or \ - config.has_option("images", "directory1"): +if xsetbg_conf.has_option("images", "directory") or \ + xsetbg_conf.has_option("images", "directory0") or \ + xsetbg_conf.has_option("images", "directory1"): image_dirs = [] - if config.has_option("images", "directory"): - image_dirs.append(config.get("images", "directory")) - if config.has_option("images", "directory0"): - image_dirs.append(config.get("images", "directory0")) - if config.has_option("images", "directory1"): - image_dirs.append(config.get("images", "directory1")) + if xsetbg_conf.has_option("images", "directory"): + image_dirs.append(xsetbg_conf.get("images", "directory")) + if xsetbg_conf.has_option("images", "directory0"): + image_dirs.append(xsetbg_conf.get("images", "directory0")) + if xsetbg_conf.has_option("images", "directory1"): + image_dirs.append(xsetbg_conf.get("images", "directory1")) i = 2 while True: option = "directory%d" % i - if config.has_option("images", option): - image_dirs.append(config.get("images", option)) + if xsetbg_conf.has_option("images", option): + image_dirs.append(xsetbg_conf.get("images", option)) i += 1 else: break @@ -70,41 +61,48 @@ image_dirs = [os.path.join(xsetbg_dir, ] # minimum time in seconds between background image changes -if config.has_option("xsetbg", "min_pause"): - min_pause = config.getint("xsetbg", "min_pause") +if xsetbg_conf.has_option("xsetbg", "min_pause"): + min_pause = xsetbg_conf.getint("xsetbg", "min_pause") else: min_pause = 60 -borders = config.get("xsetbg", "borders").split(',') -if config.has_option("xsetbg", "borders"): - borders = [border.strip() for border in config.get("xsetbg", "borders").split(',')] +borders = xsetbg_conf.get("xsetbg", "borders").split(',') +if xsetbg_conf.has_option("xsetbg", "borders"): + borders = [border.strip() for border in xsetbg_conf.get("xsetbg", "borders").split(',')] else: borders = ["darkcyan", "steelblue", "midnightblue"] # minimum time in seconds between occurences of the same image -if config.has_option("xsetbg", "min_delay"): - min_delay = config.getint("xsetbg", "min_delay") +if xsetbg_conf.has_option("xsetbg", "min_delay"): + min_delay = xsetbg_conf.get("xsetbg", "min_delay") + + # Borrowed from http://stackoverflow.com/a/2765366 + td_re = re.compile('(?:(?P\d+)y)?(?:(?P\d+)m)?(?:(?P\d+)d)?(?:T(?:(?P\d+)h)?(?:(?P\d+)m)?(?:(?P\d+)s)?)?') + td_dict = td_re.match(min_delay).groupdict(0) + delta = timedelta(days=int(td_dict['days']) + (int(td_dict['months']) * 30) + (int(td_dict['years']) * 365), + hours=int(td_dict['hours']), + minutes=int(td_dict['minutes']), + seconds=int(td_dict['seconds'])) + + if delta: + min_delay = delta.days * 24*3600 + delta.seconds + else: + min_delay = int(min_delay) + else: min_delay = 3600*24 # 24 hours # httpd settings -if config.has_option("httpd", "host"): - host = config.get("httpd", "host") +if xsetbg_conf.has_option("httpd", "host"): + host = xsetbg_conf.get("httpd", "host") else: host = 'localhost' -if config.has_option("httpd", "port"): - port = config.getint("httpd", "port") +if xsetbg_conf.has_option("httpd", "port"): + port = xsetbg_conf.getint("httpd", "port") else: error("Config must specify a port to listen. Abort.") -del config - - -os.umask(0066) # octal; -rw-------; make the global persistent dictionary - # readable only by the user -global_db_name = "xsetbg.db" - # DB keys timestamp_key = "timestamp" @@ -114,28 +112,31 @@ old_filename_key = "old_filename" # Create the database if it is not exists yet. +os.umask(0066) # octal; -rw-------; make the global persistent dictionary + # readable only by the user + try: - global_db = shelve.open(global_db_name, flag='c') + xsetbg_db = shelve.open(xsetbg_db_path, flag='c') except anydbm.error, msg: if str(msg) == "db type could not be determined": - os.remove(global_db_name) - global_db = shelve.open(global_db_name, flag='c') + os.remove(xsetbg_db_path) + xsetbg_db = shelve.open(xsetbg_db_path, flag='c') # Remove old filenames old_time = time() - min_delay to_delete = [timestamp_key] -for key in global_db.keys(): - if key.startswith('/') and global_db[key] < old_time: +for key in xsetbg_db.keys(): + if key.startswith('/') and xsetbg_db[key] < old_time: to_delete.append(key) for key in to_delete: try: - del global_db[key] + del xsetbg_db[key] except KeyError: pass -global_db.close() # Close DB in the parent process +xsetbg_db.close() # Close DB in the parent process images = [] @@ -149,12 +150,7 @@ if not images: error("No images found. Abort.") -def published(func): - func._wsgi_published = True - return func - -@published -def ping(force=False): +def change(force=False): # Use the program's file as the lock file: # lock it to prevent two processes run in parallel. lock_file = open("xsetbg.py", 'r') @@ -165,12 +161,12 @@ def ping(force=False): return - global_db = None + xsetbg_db = None try: # Reopen the global persistent dictionary - global_db = shelve.open(global_db_name, 'w') + xsetbg_db = shelve.open(xsetbg_db_path, 'w') - timestamp = global_db.get(timestamp_key) + timestamp = xsetbg_db.get(timestamp_key) current_time = time() if not force and timestamp is not None and \ @@ -178,24 +174,24 @@ def ping(force=False): return # Save current time - global_db[timestamp_key] = current_time + xsetbg_db[timestamp_key] = current_time # Select a random image and check if we've seen it recently; # loop until we can find a new image (never seen before) or old enough. for i in xrange(len(images)): # ensure the loop is not infinite image_name = random.choice(images) - if global_db.has_key(image_name): - image_time = global_db[image_name] + if xsetbg_db.has_key(image_name): + image_time = xsetbg_db[image_name] if current_time - image_time > min_delay: break else: break - global_db[image_name] = current_time + xsetbg_db[image_name] = current_time # Save filename - if global_db.has_key(filename_key): - global_db[old_filename_key] = global_db[filename_key] - global_db[filename_key] = image_name + if xsetbg_db.has_key(filename_key): + xsetbg_db[old_filename_key] = xsetbg_db[filename_key] + xsetbg_db[filename_key] = image_name program_options = ["xli", "-onroot", "-quiet"] + \ ["-center", "-border", random.choice(borders), "-zoom", "auto", @@ -210,50 +206,4 @@ def ping(force=False): flock(lock_file, LOCK_UN) lock_file.close() # Flush and close the global persistent dictionary - if global_db: global_db.close() - -@published -def force(): - ping(force=True) - -@published -def stop(): - QuitWSGIServer._quit_flag = True - - -g = globals().copy() -commands = dict([(name, g[name]) for name in g - if getattr(g[name], '_wsgi_published', False)]) -del g - -class QuitWSGIServer(WSGIServer): - _quit_flag = False - - def serve_forever(self): - while not self._quit_flag: - self.handle_request() - -def app(env, start_response): - command = env['PATH_INFO'][1:] # Remove the leading slash - if command not in commands: - status = '404 Not found' - response_headers = [('Content-type', 'text/plain')] - start_response(status, response_headers) - return ['The command was not found.\n'] - - try: - commands[command]() - except: - status = '500 Error' - response_headers = [('Content-type', 'text/plain')] - start_response(status, response_headers) - return ['Error occured!\n'] - - status = '200 OK' - response_headers = [('Content-type', 'text/plain')] - start_response(status, response_headers) - return ['Ok\n'] - -force() -httpd = make_server(host, port, app, server_class=QuitWSGIServer) -httpd.serve_forever() + if xsetbg_db: xsetbg_db.close()