#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# This file is part of the LibreOffice project.
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
#

#This digs through a pile of bugzilla's and populates the cwd with a big
#collection of bug-docs in per-filetype dirs with bug-ids as names with
#prefixes to indicate which bug-tracker, e.g.
#
#fdo-bugid-X.suffix
#rhbz-bugid-X.suffix
#moz-bugid-X.suffix
#
#where X is the n'th attachment of that type in the bug

import urllib
import feedparser
import base64
import re
import os, os.path
import sys
import xmlrpclib
from xml.dom import minidom
from xml.sax.saxutils import escape

def urlopen_retry(url):
    maxretries = 3
    for i in range(maxretries + 1):
        try:
            return urllib.urlopen(url)
        except IOError as e:
            print "caught IOError: ", e
            if maxretries == i:
                raise
            print "retrying..."

def get_from_bug_url_via_xml(url, mimetype, prefix, suffix):
    id = url.rsplit('=', 2)[1]
    print "id is", prefix, id, suffix
    if os.path.isfile(suffix + '/' + prefix + id + '-1.' + suffix):
        print "assuming", id, "is up to date"
    else:
        print "parsing", id
        sock = urlopen_retry(url+"&ctype=xml")
        dom = minidom.parse(sock)
        sock.close()
        attachmentid=0
        for attachment in dom.getElementsByTagName('attachment'):
            attachmentid += 1
            print " mimetype is",
            for node in attachment.childNodes:
                if node.nodeName == 'type':
                    print node.firstChild.nodeValue,
                    if node.firstChild.nodeValue.lower() != mimetype.lower():
                        print 'skipping'
                        break
                elif node.nodeName == 'data':
                    # check if attachment is deleted (i.e. https://bugs.kde.org/show_bug.cgi?id=53343&ctype=xml)
                    if not node.firstChild:
                        print 'deleted attachment, skipping'
                        continue

                    download = suffix + '/' +prefix + id + '-' + str(attachmentid) + '.' + suffix
                    print 'downloading as', download
                    f = open(download, 'w')
                    f.write(base64.b64decode(node.firstChild.nodeValue))
                    f.close()
                    break

def get_novell_bug_via_xml(url, mimetype, prefix, suffix):
    id = url.rsplit('=', 2)[1]
    print "id is", prefix, id, suffix
    if os.path.isfile(suffix + '/' + prefix + id + '-1.' + suffix):
        print "assuming", id, "is up to date"
    else:
        print "parsing", id
        sock = urlopen_retry(url+"&ctype=xml")
        dom = minidom.parse(sock)
        sock.close()
        attachmentid=0
        for comment in dom.getElementsByTagName('thetext'):
            commentText = comment.firstChild.nodeValue
            match = re.search(r".*Created an attachment \(id=([0-9]+)\)", commentText)
            if not match:
                continue

            attachmentid += 1

            realAttachmentId = match.group(1)
            handle = urlopen_retry(novellattach + realAttachmentId)
            if not handle:
                print "attachment %s is not accessible", realAttachmentId
                continue 
            print " mimetype is",

            remoteMime = handle.info().gettype()
            print remoteMime,
            if remoteMime != mimetype:
                print "skipping"
                continue

            download = suffix + '/' + prefix + id + '-' + str(attachmentid) + '.' + suffix
            print 'downloading as', download
            f = open(download, 'w')
            f.write(handle.read())
            f.close()

def get_through_rpc_query(rpcurl, showurl, mimetype, prefix, suffix):
    try:
        proxy = xmlrpclib.ServerProxy(rpcurl)
        query = dict()
        query['column_list']='bug_id'
        query['query_format']='advanced'
        query['field0-0-0']='attachments.mimetype'
        query['type0-0-0']='equals'
        query['value0-0-0']=mimetype
        result = proxy.Bug.search(query)
        bugs = result['bugs']
        print len(bugs), 'bugs to process'
        for bug in bugs:
            url = showurl + str(bug['id'])
            get_from_bug_url_via_xml(url, mimetype, prefix, suffix)
    except xmlrpclib.Fault, err:
        print "A fault occurred"
        print "Fault code: %s" % err.faultCode
        print err.faultString

def get_through_rss_query_url(url, mimetype, prefix, suffix):
    try:
        os.mkdir(suffix)
    except:
        pass
    d = feedparser.parse(url)

    #Getting detailed bug information and downloading an attachment body is not possible without logging in to Novell bugzilla
    #get_novell_bug_via_xml function is a workaround for that situation
    get_bug_function = get_novell_bug_via_xml if prefix == "novell" else get_from_bug_url_via_xml

    for entry in d['entries']:
        try:
            get_bug_function(entry['id'], mimetype, prefix, suffix)
        except:
            print entry['id'], "failed:", sys.exc_info()[0]
            pass

def get_through_rss_query(queryurl, mimetype, prefix, suffix):
    url = queryurl + '?query_format=advanced&field0-0-0=attachments.mimetype&type0-0-0=equals&value0-0-0=' + escape(mimetype) + '&ctype=rss'
    print 'url is', url
    get_through_rss_query_url(url, mimetype, prefix, suffix)

def get_launchpad_bugs(prefix):
    #launchpadlib python module is required to download launchpad attachments
    from launchpadlib.launchpad import Launchpad

    launchpad = Launchpad.login_anonymously("attachmentdownload", "production")
    ubuntu = launchpad.distributions["ubuntu"]

    #since searching bugs having attachments with specific mimetypes is not available in launchpad API
    #we're iterating over all bugs of the libreoffice source package
    libo = ubuntu.getSourcePackage(name="libreoffice")
    libobugs = libo.getBugTasks()

    for bugtask in libobugs:
        bug = bugtask.bug
        id = str(bug.id)
        print "parsing ", id, "status:", bugtask.status, "title:", bug.title[:50]
        attachmentid = 0
        for attachment in bug.attachments:
            attachmentid += 1
            handle = attachment.data.open()
            if not handle.content_type in mimetypes:
                #print "skipping"
                continue

            suffix = mimetypes[handle.content_type]
            if not os.path.isdir(suffix):
                try:
                    os.mkdir(suffix)
                except:
                    pass

            download = suffix + '/' + prefix + id + '-' + str(attachmentid) + '.' + suffix

            if os.path.isfile(download):
                print "assuming", id, "is up to date"
                break

            print 'mimetype is', handle.content_type, 'downloading as', download

            f = open(download, "w")
            f.write(handle.read())
            f.close()

freedesktop = 'http://bugs.freedesktop.org/buglist.cgi'
abisource = 'http://bugzilla.abisource.com/buglist.cgi' #added for abiword
gnome = 'http://bugzilla.gnome.org/buglist.cgi' # added for gnumeric
kde = 'http://bugs.kde.org/buglist.cgi' # added for koffice/calligra
openoffice = 'https://issues.apache.org/ooo/buglist.cgi'
redhatrpc = 'https://bugzilla.redhat.com/xmlrpc.cgi'
redhatbug = 'https://bugzilla.redhat.com/show_bug.cgi?id='
mozilla = 'https://bugzilla.mozilla.org/buglist.cgi'

#Novell Bugzilla requires users to log in in order to get details of the bugs such as attachment bodies etc.
#As a dirty workaround, we parse comments containing "Created an attachment (id=xxxxxx)" and download attachments manually
#python-bugzilla claims that it supports Novell bugzilla login but it's not working right now and novell bugzilla login
#system is a nightmare
novellattach = 'https://bugzilla.novell.com/attachment.cgi?id='
novell = 'https://bugzilla.novell.com/buglist.cgi'

mimetypes = {
# ODF
    'application/vnd.oasis.opendocument.base': 'odb',
    'application/vnd.oasis.opendocument.database': 'odb',
    'application/vnd.oasis.opendocument.chart': 'odc',
    'application/vnd.oasis.opendocument.chart-template': 'otc',
    'application/vnd.oasis.opendocument.formula': 'odf',
    'application/vnd.oasis.opendocument.formula-template': 'otf',
    'application/vnd.oasis.opendocument.graphics': 'odg',
    'application/vnd.oasis.opendocument.graphics-template': 'otg',
    'application/vnd.oasis.opendocument.graphics-flat-xml': 'fodg',
    'application/vnd.oasis.opendocument.presentation': 'odp',
    'application/vnd.oasis.opendocument.presentation-template': 'otp',
    'application/vnd.oasis.opendocument.presentation-flat-xml': 'fodp',
    'application/vnd.oasis.opendocument.spreadsheet': 'ods',
    'application/vnd.oasis.opendocument.spreadsheet-template': 'ots',
    'application/vnd.oasis.opendocument.spreadsheet-flat-xml': 'fods',
    'application/vnd.oasis.opendocument.text': 'odt',
    'application/vnd.oasis.opendocument.text-flat-xml': 'fodt',
    'application/vnd.oasis.opendocument.text-master': 'odm',
    'application/vnd.oasis.opendocument.text-template': 'ott',
    'application/vnd.oasis.opendocument.text-web': 'oth',
# OOo XML
    'application/vnd.sun.xml.base': 'odb',
    'application/vnd.sun.xml.calc': 'sxc',
    'application/vnd.sun.xml.calc.template': 'stc',
    'application/vnd.sun.xml.chart': 'sxs',
    'application/vnd.sun.xml.draw': 'sxd',
    'application/vnd.sun.xml.draw.template': 'std',
    'application/vnd.sun.xml.impress': 'sxi',
    'application/vnd.sun.xml.impress.template': 'sti',
    'application/vnd.sun.xml.math': 'sxm',
    'application/vnd.sun.xml.writer': 'sxw',
    'application/vnd.sun.xml.writer.global': 'sxg',
    'application/vnd.sun.xml.writer.template': 'stw',
    'application/vnd.sun.xml.writer.web': 'stw',
# MSO
    'application/rtf': 'rtf',
    'text/rtf': 'rtf',
    'application/msword': 'doc',
    'application/vnd.ms-powerpoint': 'ppt',
    'application/vnd.ms-excel': 'xls',
    'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet': 'xlsx',
    'application/vnd.openxmlformats-officedocument.spreadsheetml.template': 'xltx',
    'application/vnd.openxmlformats-officedocument.presentationml.presentation': 'pptx',
    'application/vnd.openxmlformats-officedocument.presentationml.template': 'ppotx',
    'application/vnd.openxmlformats-officedocument.presentationml.slideshow': 'ppsx',
    'application/vnd.openxmlformats-officedocument.wordprocessingml.document': 'docx',
    'application/vnd.openxmlformats-officedocument.wordprocessingml.template': 'dotx',
    'application/vnd.visio': 'vsd',
    'application/vnd.visio.xml': 'vdx',
    'application/x-mspublisher': 'pub',
# W3C
    'application/xhtml+xml': 'xhtml',
    'application/mathml+xml': 'mml',
    'text/html': 'html',
    'application/docbook+xml': 'docbook',
# misc
    'text/spreadsheet': 'slk',
    'application/vnd.corel-draw': 'cdr',
    'application/vnd.lotus-wordpro': 'lwp',
    'application/vnd.lotus-1-2-3': 'wks',
    'application/vnd.wordperfect': 'wpd',
    'application/vnd.ms-works': 'wps',
    'application/x-hwp': 'hwp',
    'application/x-aportisdoc': 'pdb',
    'application/x-pocket-word': 'psw',
    'application/x-t602': '602',
# binfilter
    'application/x-starcalc': 'sdc',
    'application/vnd.stardivision.calc': 'sdc5',
    'application/x-starchart': 'sds',
    'application/vnd.stardivision.chart': 'sds5',
    'application/x-stardraw': 'sdd_d',
    'application/vnd.stardivision.draw': 'sda5',
    'application/x-starimpress': 'sdd_i',
    'application/vnd.stardivision.impress': 'sdd5',
    'application/vnd.stardivision.impress-packed': 'sdp5',
    'application/x-starmath': 'smf',
    'application/vnd.stardivision.math': 'smf5',
    'application/x-starwriter': 'sdw',
    'application/vnd.stardivision.writer': 'sdw5',
    'application/vnd.stardivision.writer-global': 'sgl5',
# relatively uncommon image mimetypes
    'image/cgm': 'cgm',
    'image/tiff': 'tiff',
    'image/vnd.dxf': 'dxf',
    'image/x-emf': 'emf',
    'image/x-targa': 'tga',
    'image/x-sgf': 'sgf',
    'image/x-svm': 'svm',
    'image/x-wmf': 'wmf',
    'image/x-pict': 'pict',
}

# disabled for now, this would download gigs of pngs/jpegs...
common_noncore_mimetypes = [
# graphics
    ('image/svg+xml', 'svg'),
    ('image/x-MS-bmp', 'bmp'),
    ('image/x-wpg', 'wpg'),
    ('image/x-eps', 'eps'),
    ('image/x-met', 'met'),
    ('image/x-portable-bitmap', 'pbm'),
    ('image/x-photo-cd', 'pcd'),
    ('image/x-pcx', 'pcx'),
    ('image/x-portable-graymap', 'pgm'),
    ('image/x-portable-pixmap', 'ppm'),
    ('image/vnd.adobe.photoshop', 'psd'),
    ('image/x-cmu-raster', 'ras'),
    ('image/x-xbitmap', 'xbm'),
    ('image/x-xpixmap', 'xpm'),
    ('image/gif', 'gif'),
    ('image/jpeg', 'jpeg'),
    ('image/png', 'png'),
# pdf, etc.
    ('application/pdf', 'pdf'),
]

for (mimetype,extension) in mimetypes.items():
    get_through_rss_query(freedesktop, mimetype, "fdo", extension)

for (mimetype,extension) in mimetypes.items():
    get_through_rpc_query(redhatrpc, redhatbug, mimetype, "rhbz", extension)

for (mimetype,extension) in mimetypes.items():
    get_through_rss_query(openoffice, mimetype, "ooo", extension)

for (mimetype,extension) in mimetypes.items():
    get_through_rss_query(novell, mimetype, "novell", extension)

for (mimetype,extension) in mimetypes.items():
    get_through_rss_query(gnome, mimetype, "gnome", extension)

for (mimetype,extension) in mimetypes.items():
    get_through_rss_query(abisource, mimetype, "abi", extension)

for (mimetype,extension) in mimetypes.items():
    get_through_rss_query(kde, mimetype, "kde", extension)

try:
    get_launchpad_bugs("lp")
except ImportError:
    print "launchpadlib unavailable, skipping Ubuntu tracker"

# vim:set shiftwidth=4 softtabstop=4 expandtab: