From a8479f9936c6c9fa6ca007814f64ba869a777835 Mon Sep 17 00:00:00 2001 From: nemobis Date: Sun, 20 May 2012 08:08:28 +0000 Subject: [PATCH] Get namespaces and images info from API. Code badly copied around, we should probably use modules such as http://packages.python.org/simplemediawiki/ to use API. Tested, seems to work. Fixed some typos. git-svn-id: https://wikiteam.googlecode.com/svn/trunk@668 31edc4fc-5e31-b4c4-d58b-c8bc928bcb95 --- dumpgenerator.py | 109 ++++++++++++++++++++++++++++++++++++++++++----- 1 file changed, 98 insertions(+), 11 deletions(-) diff --git a/dumpgenerator.py b/dumpgenerator.py index 83854b0..d7e9c6d 100644 --- a/dumpgenerator.py +++ b/dumpgenerator.py @@ -62,14 +62,12 @@ def cleanHTML(raw=''): raw = raw.split('
')[1].split('
')[0] else: print raw[:250] - print 'This wiki doesn\'t use marks to split contain' + print 'This wiki doesn\'t use marks to split content' sys.exit() return raw def getNamespaces(config={}): - """ """ - #fix get namespaces from a random Special:Export page, it is better - #too from API http://wikiindex.org/api.php?action=query&meta=siteinfo&siprop=general|namespaces + """ Hackishly gets the list of namespaces names and ids from the dropdown in the HTML of Special:AllPages. Function called if no API is available. """ namespaces = config['namespaces'] namespacenames = {0:''} # main is 0, no prefix if namespaces: @@ -99,14 +97,45 @@ def getNamespaces(config={}): namespaces = [i for i in set(namespaces)] #uniques print '%d namespaces found' % (len(namespaces)) return namespaces, namespacenames + +def getNamespacesAPI(config={}): + """ Uses the API to get the list of namespaces names and ids """ + namespaces = config['namespaces'] + namespacenames = {0:''} # main is 0, no prefix + if namespaces: + req = urllib2.Request(url=config['api'], data=urllib.urlencode({'action': 'query', 'meta': 'siteinfo', 'siprop': 'namespaces', 'format': 'xml'}), headers={'User-Agent': getUserAgent()}) + f = urllib2.urlopen(req) + raw = f.read() + f.close() + + m = re.compile(r']*?/?>(?P[^<]+)?()?').finditer(raw) # [^>]*? to include case="first-letter" canonical= etc. + if 'all' in namespaces: + namespaces = [] + for i in m: + namespaces.append(int(i.group("namespaceid"))) + namespacenames[int(i.group("namespaceid"))] = i.group("namespacename") + else: + #check if those namespaces really exist in this wiki + namespaces2 = [] + for i in m: + if int(i.group("namespaceid")) in namespaces: + namespaces2.append(int(i.group("namespaceid"))) + namespacenames[int(i.group("namespaceid"))] = i.group("namespacename") + namespaces = namespaces2 + else: + namespaces = [0] + + namespaces = [i for i in set(namespaces)] #uniques + print '%d namespaces found' % (len(namespaces)) + return namespaces, namespacenames def getPageTitlesAPI(config={}): - """ """ + """ Uses the API to get the list of page titles """ titles = [] - namespaces, namespacenames = getNamespaces(config=config) + namespaces, namespacenames = getNamespacesAPI(config=config) for namespace in namespaces: if namespace in config['exnamespaces']: - print ' Skiping namespace =', namespace + print ' Skipping namespace =', namespace continue c = 0 @@ -456,7 +485,7 @@ def getImageFilenamesURL(config={}): f = urllib2.urlopen(req) raw = f.read() f.close() - if re.search(ur'(?i)(allowed memory size of \d+ bytes exhausted|Call to a member function getURL)', raw): # delicated wiki + if re.search(ur'(?i)(allowed memory size of \d+ bytes exhausted|Call to a member function getURL)', raw): # delicate wiki if limit > 10: print 'Error: listing %d images in a chunk is not possible, trying tiny chunks' % (limit) limit = limit/10 @@ -520,6 +549,58 @@ def getImageFilenamesURL(config={}): images.sort() return images +def getImageFilenamesURLAPI(config={}): + """ Retrieve file list: filename, url, uploader """ + print 'Retrieving image filenames' + headers = {'User-Agent': getUserAgent()} + aifrom = '!' + images = [] + while aifrom: + sys.stderr.write('.') #progress + params = {'action': 'query', 'list': 'allimages', 'aiprop': 'url|user', 'aifrom': aifrom, 'format': 'xml', 'ailimit': 500} + data = urllib.urlencode(params) + req = urllib2.Request(url=config['api'], data=data, headers=headers) + try: + f = urllib2.urlopen(req) + except: + try: + print 'Server is slow... Waiting some seconds and retrying...' + time.sleep(10) + f = urllib2.urlopen(req) + except: + print 'An error has occurred while retrieving page titles with API' + print 'Please, resume the dump, --resume' + sys.exit() + xml = f.read() + f.close() + m = re.findall(r'', xml) + if m: + aifrom = undoHTMLEntities(text=m[0]) #" = ", etc + else: + aifrom = '' + m = re.compile(r'(?im)]*user="(?P[^"]+)"[^>]* url="(?P[^"]+)"[^>]*/>').finditer(xml) # Retrieves a filename, uploader, url triple from the name, user, url field of the xml line; space before url needed to avoid getting the descriptionurl field instead. + for i in m: + url = i.group('url') + if url[0] == '/' or (not url.startswith('http://') and not url.startswith('https://')): #is it a relative URL? + if url[0] == '/': #slash is added later + url = url[1:] + domainalone = config['index'].split('://')[1].split('/')[0] #remove from :// (http or https) until the first / after domain + url = '%s://%s/%s' % (config['index'].split('://')[0], domainalone, url) # concat http(s) + domain + relative url + url = undoHTMLEntities(text=url) + #url = urllib.unquote(url) #do not use unquote with url, it break some urls with odd chars + url = re.sub(' ', '_', url) + filename = re.sub('_', ' ', i.group('filename')) + filename = undoHTMLEntities(text=filename) + filename = urllib.unquote(filename) + uploader = re.sub('_', ' ', i.group('uploader')) + uploader = undoHTMLEntities(text=uploader) + uploader = urllib.unquote(uploader) + images.append([filename, url, uploader]) + + print ' Found %d images' % (len(images)) + images.sort() + return images + def undoHTMLEntities(text=''): """ """ text = re.sub('<', '<', text) # i guess only < > & " need conversion http://www.w3schools.com/html/html_entities.asp @@ -951,7 +1032,10 @@ def main(params=[]): else: print 'Image list is incomplete. Reloading...' #do not resume, reload, to avoid inconsistences, deleted images or so - images = getImageFilenamesURL(config=config) + if config['api']: + images=getImageFilenamesURLAPI(config=config) + else: + images = getImageFilenamesURL(config=config) saveImageFilenamesURL(config=config, images=images) #checking images directory listdir = [] @@ -991,7 +1075,10 @@ def main(params=[]): saveTitles(config=config, titles=titles) generateXMLDump(config=config, titles=titles) if config['images']: - images += getImageFilenamesURL(config=config) + if config['api']: + images += getImageFilenamesURLAPI(config=config) + else: + images += getImageFilenamesURL(config=config) saveImageFilenamesURL(config=config, images=images) generateImageDump(config=config, other=other, images=images) if config['logs']: @@ -1028,4 +1115,4 @@ def main(params=[]): bye() if __name__ == "__main__": - main() + main() \ No newline at end of file