New submission from Michael Brooks <firealwayswo...@gmail.com>:
The HTML tag at the bottom of this page correctly identified has having cdata
like properties and trigger set_cdata_mode(). Due to the cdata properties of
this tag, the only way to end the data segment is with a closing </script>
tag, NO OTHER tag can close this data segment. Currently in cdata mode the
HTMLParser will use this regular expression to close this script tag:
re.compile(r'<(/|\Z)'), however this script tag is setting a variable with
data that contains "</b>" which will terminate this script tag prematurely.
I have written and tested the following patch on my system:
#used to terminate cdata elements
endtagfind_script = re.compile('(?i)</\s*script\s*>')
endtagfind_style = re.compile('(?i)</\s*style\s*>')
class html_patch(HTMLParser.HTMLParser):
# Internal -- sets the proper tag terminator based on cdata element type
def set_cdata_mode(self, tag):
#We check if the script is either a style or a script
#based on self.CDATA_CONTENT_ELEMENTS
if tag=="style":
self.interesting = endtagfind_style
elif tag=="script":
self.interesting = endtagfind_script
else:
self.error("Unknown cdata type:"+tag) # should never happen
self.cdata_tag = tag
This cdata tag isn't parsed properly by HTMLParser, but it works fine in a
browser:
<script>
pwa.setup(
pwa.searchview,
'lhid_searchheader',
'lhid_content',
'lhid_trayhandle',
'lhid_tray',
{'query': 'test',
'tagQuery': '',
'searchScope': '',
'owner': '',
'doCrowding': false,
'isOwner': false,
'albumId': ''
,'experimentalsearchquality': true},
'firealwaysworks'
,
{feedUrl:
'https://picasaweb.google.com/data/feed/tiny/all?alt=jsonm&kind=photo&access=public&filter=1&q=test',
feedPreload: null},
{NEW_HOMEPAGE:1,NEW_ONE_BAR:1,fr:1,tags:1,search:1,globalsearch:1,globalsearchpromo:1,newfeatureslink:1,cart:1,contentcaching:1,developerlink:1,payments:1,newStrings:1,cccquota:1,signups:1,flashSlideshow:1,URL_SHORTENER_VISIBILITY:1,emailupload:1,photopickeralbumview:1,PWA_NEWUI:1,WILDCARD_QUERY_FEED:1,recentphotos:1,editinpicasa:1,imagesearch:1,froptin:1,FR_CONTINUOUS_CLUSTERING:1,asyncUploads:1,PERFORMANCE_EXPERIMENTS:1,BAKED_PRELOAD_FEEDS:1,albumviewlimit:1,HQ_VIDEOS:1,VIDEO_INFO_DISPLAY:1,CSI:1,EXPERIMENTAL_SEARCH_QUALITY:1,COMMENT_TRANSLATION:1,NEW_COMMENT_STYLE:1,ENABLE_NEW_FLAG_ABUSE_FORM:1,QRCODE:1,CHINA:1,GWS_URL_REDIRECTION:1,FEATURED_PHOTOS:1,COMMENT_SUBSCRIPTION:1,COMMENT_SUBSCRIPTION_SETTING:1,PICASA_MAC:1,AD_ON_SEARCHPAGE:1,API_AUTO_ACCOUNTS:1,FOCUS_GROUP_ACL:1,PHOTOSTREAM:1,BACKEND_ACL:1,ADVANCED_SEARCH:1,FACE_SEARCH:1,CAMERA_SEARCH:1,NOTIFICATION:1,PIXELATED_PREVIEW:1,TRANSPARENT_PIXELATED_PREVIEW:1,NEW_SETTINGS_PAGE:1,VIEW_STARRERS:1,FR_FOCUS_MERGE:1,AD_ON_SEARCH_ONE
UP:1,GALLERY_COMMENTS:1,COMMENT_ABUSE_BLOCKING:1,FAVORITE_NOTIFICATION:1,IMAGE_ONLY_LINK:1,RECENT_PHOTOS_SLIDESHOW:1,HEART:1,SMALLER_IMAGE:1,FAST_SLIDESHOW:1,VIEW_CONTACTS:1,COLLABORATIVE_ALBUMS:1,PRINT_MARKETPLACE:1,PRINT_MARKETPLACE_REPLACEMENT:1,VIEW_COUNT:1,POST_TO:1,GAPLUS:1,PICASA_PROMO:1,DOUBLECLICK_PREMIUM_ADS:1,DOUBLECLICK_EXPLORE_MAIN:1,DOUBLECLICK_MYPHOTOS:1,DOUBLECLICK_PUBLIC_GALLERY:1,DOUBLECLICK_USER_ALBUM:1,DOUBLECLICK_USER_PHOTO:1,DOUBLECLICK_VISITOR_ADS:1,PRODUCTION:1,NOSCRIPT:1,UNLISTED_GALLERY:1,GA_TRACKING:1,UNLIMITED_GALLERY:1,PICNIK_EDIT:1,MICROSCOPE_ZOOM:1,FR_V2:1,FAVORITE_SUGGESTION:1,FAVORITE_UPDATE:1,MERGED_PROFILES_SOFTLAUNCH:1,MERGED_PROFILES:1,MERGED_PROFILES_ASYNC:1,NEW_FR_UI:1,GAPLUS_UNMERGED_SOCIALIZATION:1,OPTOUT_ACL_NOTIFICATION:1,HTTPS_VISIBILITY:1,DEFAULT_HTTPS:1,EXTENDED_EXIF:1,DOUBLECLICK_MULTISLOT:1,ONEPICK:1,PER_ALBUM_GEO_VISIBILITY:1,FOCUS_MERGE_LINK_DIALOG_VISIBILITY:1,SHAREBOX_VISIBILITY:1,AUTO_DOWNSIZE:1,BULK_ALBUM_EDITOR_VISIBILITY:1,PROF
ILE_NAME_CHECK:1,COLLABORATIVE_NAMETAGS:1,NOT_FOUND_404:1,REDIRECT_TO_PLUS:1},
{
'gdataVersion': '4.0',
'updateCartPath': '\x2Flh\x2FupdateCart?rtok=b8S9ibYqrTMF',
'editCaptionsPath': '',
'albumMapPath': '',
'albumKmlUrl': '',
'selectedPhotosPath':
'\x2Flh\x2FselectedPhotos?tok=QUI1UGxRYk9fNmw1Q2tVeS1DWnY3UlFoTTY1RzRNNWphdzoxMzIwNjAyMzA3NDYx',
'setLicensePath': '',
'setStarPath':
'\x2Flh\x2FsetStar?tok=QUI1UGxRWW4zY1ZKb3U0TzROZU5tUHhIV3hhRW9HcUYwQToxMzIwNjAyMzA3NDYx',
'peopleManagerPath': '',
'peopleSearchPath': '',
'clusterViewPath': '',
'frOptStatus': 'OptedIn',
'isNameTagsVisible': '','authUserIsPhotosUser': true,
'authUserNickname': 'Some Nickname',
'authUserPortraitUrl':
'https:\x2F\x2Flh4.googleusercontent.com\x2F-UI9ZfIFfyQI\x2FAAAAAAAAAAI\x2FAAAAAAAAAAA\x2Fm0enLvZXYbI\x2Fs32-c\x2Ffirealwaysworks.jpg',
'authUserProfileUrl':'https:\x2F\x2Fprofiles.google.com\x2F115162402406836485912',
'authUser':{name:'firealwaysworks',isProfileUser:1,isLoggedIn:1,user:1,isOwner:1
,'showGeo': 0
},
'foreignNickname': '',
'subjects': [
]
,
'owner': {name:'firealwaysworks',nickname:'Michael
Brooks',portrait:'https:\x2F\x2Flh4.googleusercontent.com\x2F-UI9ZfIFfyQI\x2FAAAAAAAAAAI\x2FAAAAAAAAAAA\x2Fm0enLvZXYbI\x2Fs32-c\x2Ffirealwaysworks.jpg',link:'https:\x2F\x2Fpicasaweb.google.com\x2F115162402406836485912',defaultalbumnametagsvisibility:'2'
,isnewstorageuser:false},
'album':
{id:'',link:'',name:'',title:'',titleshort:'',kmlLink:'',mapLink:'',showGeo:0},
'picnikHandlerUrl':
'https:\x2F\x2Fpicasaweb.google.com\x2Flh\x2FpicnikHandler?tok=QUI1UGxRYWJYZVVueTE2SjJJLTBjRUliWVlaaU42S0NRQToxMzIwNjAyMzA3NDYx',
'picnikCloseUrl': 'https:\x2F\x2Fpicasaweb.google.com\x2Flh\x2FpicnikClose',
'picnikLocale': 'en_US',
'authUserIsProfileUser': true,
'ownerIsEsUser': false,
'profileServerUrl': '',
'profileSignupUrl': 'https:\x2F\x2Fplus.google.com\x2Fup\x2F?type=st',
'profileName': 'Google+'
});
function google_afs_request_done(google_ads) {
var google_num_ads = google_ads.length;
if (google_num_ads <= 0)
return;
var wideAds = '<table width="100%" cellspacing="0" cellpadding="8"' +
'border="0" class="lhcl_search_ad_tbl"><tbody><tr>';
for(var i = 0; i < google_num_ads; i++){
if (google_ads[i].type=="text/wide"){
wideAds += '<td>';
wideAds += '<table width="100%" cellspacing="0" ' +
'cellpadding="0" border="0"><tbody><tr><td>';
wideAds+='<a href="' + google_ads[i].url + '" ' +
'onmouseout="window.status=\'\';return true" ' +
'onmouseover="window.status=\'go to ' +
google_ads[i].visible_url + '\';return true" ' +
'style="text-decoration:none">' +
'<span style="text-decoration:underline">' +
'<b>' + google_ads[i].line1 + '</b><br></span>' +
'<span style="color:#000000">' +
google_ads[i].line2 + '<br></span>' +
'<span style="color:#008000">' +
google_ads[i].visible_url + '</span></a><BR>';
wideAds += '</td>';
if (i == google_num_ads - 1) {
wideAds += '<td valign="top">' +
'<div id="lhid_search_ad_spl">Sponsored Links</div></td>';
}
wideAds += '</tr></tbody></table>';
wideAds += '</td>';
}
}
wideAds += '</tr></tbody></table>';
document.getElementById("lhid_search_ad_unit").innerHTML = wideAds;
}
google_afs_query = 'test';
google_afs_ad = 'w3'; // specify the number of ads you are requesting
google_afs_client = 'google-picasa_js'; // substitute your client ID
// google_afs_channel = ''; // enter your comma-separated channel IDs
google_afs_ie = 'utf8'; // select input encoding scheme
google_afs_oe = 'utf8'; // select output encoding scheme
google_afs_adsafe = 'high'; // specify level for filtering non-family-safe ads
google_afs_adtest = 'off'; // ** set parameter to off before launch to
production
document.write('<' +
'script src="https://www.google.com/afsonline/show_afs_ads.js";></' +
'script>');
</script>
----------
components: Library (Lib)
messages: 147175
nosy: Michael.Brooks
priority: normal
severity: normal
status: open
title: HTMLParser incorrectly handles cdata elements.
versions: Python 2.7
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue13358>
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