mapUpdate.py

## @package gmapcatcher.mapUpdate
# All the update related logic

from mapConst import *
import gtk
from widgets.customMsgBox import updateMsgBox
import openanything
from threading import Timer


## Class used to get latest version info
class MapUpdate():
    def __init__(self, strURL):
        self.latest_version = "0.0.0.0"
        self.latest_installer = ""
        self.html_data = self.get_data(strURL)
        if self.html_data:
            splitList = self.html_data.split(SEPARATOR)
            if len(splitList) == 2:
                self.latest_version = splitList[0]
                self.latest_installer = splitList[1]

    ## Return the data from the given URL
    def get_data(self, strURL):
        try:
            oa = openanything.fetch(strURL)
            if oa['status'] == 200:
                return oa['data']
        except Exception:
            return False


## Class that should be called to check for updates
class CheckForUpdates():
    def __init__(self, intDelay, strURL):
        #Start after a few second delay
        self.update = None
        self.strURL = strURL
        self.myThread = Timer(intDelay, self.UpdateThread)
        self.myThread.start()

    ## Launch the MapUpdate in a thread to prevent any slowdowns
    def UpdateThread(self):
        self.update = MapUpdate(self.strURL)

    ## Finish the Thread and
    def finish(self):
        self.myThread.cancel()
        if self.update:
            if self.update.latest_version > VERSION:
                updateMsgBox(
                        "Update detected! \n" +
                        ("A new version of %s is available \n\n" % NAME) +
                        ("Your version is %s \n" % VERSION) +
                        ("Current version is %s" %
                        self.update.latest_version),
                        WEB_ADDRESS,
                        self.update.latest_installer
                )
                gtk.main()

if __name__ == "__main__":
    # Test some URLs
    URL_list = ["http://googlecode.com", "", "HTtp://Fake.url", None,
                "http://htmltab.kb-creative.net",
                "http://gmapcatcher.googlecode.com/svn/trunk/Changelog",
                "http://gmapcatcher.googlecode.com/svn/wiki/version.wiki"]

    # Once the version is up Test should "fail" for all but the last one!
    for myURL in URL_list:
        upd = MapUpdate(myURL)
        print "|------------------------------------------------"
        print "| Testing URL: ", myURL
        print "| "
        newVersionAvailable = upd.latest_version > VERSION
        if newVersionAvailable:
            print "| Your Version: ", VERSION
            print "| "
            print "| Latest Version: ", upd.latest_version
            print "| Latest Installer: ", upd.latest_installer
            if upd.html_data:
                print "| HTML data: ", upd.html_data[:50]
            print "| "
        print "| New Version Available = ", newVersionAvailable
        print "| "