epicyon/blog.py

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__filename__ = "blog.py"
__author__ = "Bob Mottram"
__license__ = "AGPL3+"
__version__ = "1.1.0"
__maintainer__ = "Bob Mottram"
__email__ = "bob@freedombone.net"
__status__ = "Production"
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import os
from datetime import datetime
from content import replaceEmojiFromTags
from webinterface import contentWarningScriptOpen
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from webinterface import getIconsDir
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from webinterface import getPostAttachmentsAsHtml
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from webinterface import htmlHeader
from webinterface import htmlFooter
from webinterface import addEmbeddedElements
from utils import getNicknameFromActor
from utils import getDomainFromActor
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from utils import locatePost
from utils import loadJson
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from posts import createBlogsTimeline
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def noOfBlogReplies(baseDir: str, httpPrefix: str, translate: {},
nickname: str, domain: str, domainFull: str,
postId: str, depth=0) -> int:
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"""Returns the number of replies on the post
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This is recursive, so can handle replies to replies
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"""
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if depth > 4:
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return 0
if not postId:
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return 0
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tryPostBox = ('tlblogs', 'inbox', 'outbox')
boxFound = False
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for postBox in tryPostBox:
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postFilename = baseDir + '/accounts/' + \
nickname + '@' + domain + '/' + postBox + '/' + \
postId.replace('/', '#') + '.replies'
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if os.path.isfile(postFilename):
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boxFound = True
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break
if not boxFound:
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# post may exist but has no replies
for postBox in tryPostBox:
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postFilename = baseDir + '/accounts/' + \
nickname + '@' + domain + '/' + postBox + '/' + \
postId.replace('/', '#')
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if os.path.isfile(postFilename):
return 1
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return 0
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removals = []
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replies = 0
lines = []
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with open(postFilename, "r") as f:
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lines = f.readlines()
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for replyPostId in lines:
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replyPostId = replyPostId.replace('\n', '').replace('.json', '')
if locatePost(baseDir, nickname, domain, replyPostId):
replyPostId = replyPostId.replace('.replies', '')
replies += 1 + noOfBlogReplies(baseDir, httpPrefix, translate,
nickname, domain, domainFull,
replyPostId, depth+1)
else:
# remove post which no longer exists
removals.append(replyPostId)
# remove posts from .replies file if they don't exist
if lines and removals:
print('Rewriting ' + postFilename + ' to remove ' +
str(len(removals)) + ' entries')
with open(postFilename, "w") as f:
for replyPostId in lines:
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replyPostId = replyPostId.replace('\n', '')
if replyPostId not in removals:
f.write(replyPostId + '\n')
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return replies
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def getBlogReplies(baseDir: str, httpPrefix: str, translate: {},
nickname: str, domain: str, domainFull: str,
postId: str, depth=0) -> str:
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"""Returns a string containing html blog posts
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"""
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if depth > 4:
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return ''
if not postId:
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return ''
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tryPostBox = ('tlblogs', 'inbox', 'outbox')
boxFound = False
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for postBox in tryPostBox:
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postFilename = baseDir + '/accounts/' + \
nickname + '@' + domain + '/' + postBox + '/' + \
postId.replace('/', '#') + '.replies'
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if os.path.isfile(postFilename):
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boxFound = True
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break
if not boxFound:
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# post may exist but has no replies
for postBox in tryPostBox:
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postFilename = baseDir + '/accounts/' + \
nickname + '@' + domain + '/' + postBox + '/' + \
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postId.replace('/', '#') + '.json'
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if os.path.isfile(postFilename):
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postFilename = baseDir + '/accounts/' + \
nickname + '@' + domain + \
'/postcache/' + \
postId.replace('/', '#') + '.html'
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if os.path.isfile(postFilename):
with open(postFilename, "r") as postFile:
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return postFile.read() + '\n'
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return ''
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with open(postFilename, "r") as f:
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lines = f.readlines()
repliesStr = ''
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for replyPostId in lines:
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replyPostId = replyPostId.replace('\n', '').replace('.json', '')
replyPostId = replyPostId.replace('.replies', '')
postFilename = baseDir + '/accounts/' + \
nickname + '@' + domain + \
'/postcache/' + \
replyPostId.replace('\n', '').replace('/', '#') + '.html'
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if not os.path.isfile(postFilename):
continue
with open(postFilename, "r") as postFile:
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repliesStr += postFile.read() + '\n'
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rply = getBlogReplies(baseDir, httpPrefix, translate,
nickname, domain, domainFull,
replyPostId, depth+1)
if rply not in repliesStr:
repliesStr += rply
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# indicate the reply indentation level
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indentStr = '>'
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for indentLevel in range(depth):
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indentStr += ' >'
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repliesStr = repliesStr.replace(translate['SHOW MORE'], indentStr)
return repliesStr.replace('?tl=outbox', '?tl=tlblogs')
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return ''
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def htmlBlogPostContent(authorized: bool,
baseDir: str, httpPrefix: str, translate: {},
nickname: str, domain: str, domainFull: str,
postJsonObject: {},
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handle: str, restrictToDomain: bool,
blogSeparator='<hr>') -> str:
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"""Returns the content for a single blog post
"""
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linkedAuthor = False
actor = ''
blogStr = ''
messageLink = ''
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if postJsonObject['object'].get('id'):
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messageLink = postJsonObject['object']['id'].replace('/statuses/', '/')
titleStr = ''
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if postJsonObject['object'].get('summary'):
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titleStr = postJsonObject['object']['summary']
blogStr += '<h1><a href="' + messageLink + '">' + \
titleStr + '</a></h1>\n'
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# get the handle of the author
if postJsonObject['object'].get('attributedTo'):
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actor = postJsonObject['object']['attributedTo']
authorNickname = getNicknameFromActor(actor)
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if authorNickname:
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authorDomain, authorPort = getDomainFromActor(actor)
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if authorDomain:
# author must be from the given domain
if restrictToDomain and authorDomain != domain:
return ''
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handle = authorNickname + '@' + authorDomain
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else:
# posts from the domain are expected to have an attributedTo field
if restrictToDomain:
return ''
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if postJsonObject['object'].get('published'):
if 'T' in postJsonObject['object']['published']:
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blogStr += '<h3>' + \
postJsonObject['object']['published'].split('T')[0]
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if handle:
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if handle.startswith(nickname + '@' + domain):
blogStr += ' <a href="' + httpPrefix + '://' + \
domainFull + \
'/users/' + nickname + '">' + handle + '</a>'
linkedAuthor = True
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else:
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if actor:
blogStr += ' <a href="' + actor + '">' + \
handle + '</a>'
linkedAuthor = True
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else:
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blogStr += ' ' + handle
blogStr += '</h3>\n'
avatarLink = ''
replyStr = ''
announceStr = ''
likeStr = ''
bookmarkStr = ''
deleteStr = ''
muteStr = ''
isMuted = False
attachmentStr, galleryStr = getPostAttachmentsAsHtml(postJsonObject,
'tlblogs', translate,
isMuted, avatarLink,
replyStr, announceStr,
likeStr, bookmarkStr,
deleteStr, muteStr)
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if attachmentStr:
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blogStr += '<br><center>' + attachmentStr + '</center>'
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if postJsonObject['object'].get('content'):
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contentStr = addEmbeddedElements(translate,
postJsonObject['object']['content'])
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if postJsonObject['object'].get('tag'):
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contentStr = replaceEmojiFromTags(contentStr,
postJsonObject['object']['tag'],
'content')
blogStr += '<br>' + contentStr + '\n'
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blogStr += '<br>\n'
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if not linkedAuthor:
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blogStr += '<p class="about"><a class="about" href="' + \
httpPrefix + '://' + domainFull + \
'/users/' + nickname + '">' + translate['About the author'] + \
'</a></p>\n'
replies = noOfBlogReplies(baseDir, httpPrefix, translate,
nickname, domain, domainFull,
postJsonObject['object']['id'])
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# separator between blogs should be centered
if '<center>' not in blogSeparator:
blogSeparator = '<center>' + blogSeparator + '</center>'
if replies == 0:
blogStr += blogSeparator + '\n'
return blogStr
if not authorized:
blogStr += '<p class="blogreplies">' + \
translate['Replies'].lower() + ': ' + str(replies) + '</p>'
blogStr += '<br><br><br>' + blogSeparator + '\n'
else:
blogStr += blogSeparator + '<h1>' + translate['Replies'] + '</h1>\n'
blogStr += '<script>' + contentWarningScriptOpen() + '</script>\n'
if not titleStr:
blogStr += getBlogReplies(baseDir, httpPrefix, translate,
nickname, domain, domainFull,
postJsonObject['object']['id'])
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else:
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blogRepliesStr = getBlogReplies(baseDir, httpPrefix, translate,
nickname, domain, domainFull,
postJsonObject['object']['id'])
blogStr += blogRepliesStr.replace('>' + titleStr + '<', '')
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return blogStr
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def htmlBlogPostRSS(authorized: bool,
baseDir: str, httpPrefix: str, translate: {},
nickname: str, domain: str, domainFull: str,
postJsonObject: {},
handle: str, restrictToDomain: bool) -> str:
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"""Returns the RSS feed for a single blog post
"""
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messageLink = ''
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if postJsonObject['object'].get('id'):
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messageLink = postJsonObject['object']['id'].replace('/statuses/', '/')
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if not restrictToDomain or \
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(restrictToDomain and '/' + domain in messageLink):
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if postJsonObject['object'].get('summary'):
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published = postJsonObject['object']['published']
pubDate = datetime.strptime(published, "%Y-%m-%dT%H:%M:%SZ")
titleStr = postJsonObject['object']['summary']
rssDateStr = pubDate.strftime("%a, %d %b %Y %H:%M:%S UT")
rssStr = ' <item>'
rssStr += ' <title>' + titleStr + '</title>'
rssStr += ' <link>' + messageLink + '</link>'
rssStr += ' <pubDate>' + rssDateStr + '</pubDate>'
rssStr += ' </item>'
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return rssStr
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def htmlBlogPost(authorized: bool,
baseDir: str, httpPrefix: str, translate: {},
nickname: str, domain: str, domainFull: str,
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postJsonObject: {}) -> str:
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"""Returns a html blog post
"""
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blogStr = ''
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cssFilename = baseDir + '/epicyon-blog.css'
if os.path.isfile(baseDir + '/blog.css'):
cssFilename = baseDir + '/blog.css'
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with open(cssFilename, 'r') as cssFile:
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blogCSS = cssFile.read()
blogStr = htmlHeader(cssFilename, blogCSS)
blogStr = blogStr.replace('.cwText', '.cwTextInactive')
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blogStr += htmlBlogPostContent(authorized, baseDir,
httpPrefix, translate,
nickname, domain,
domainFull, postJsonObject,
None, False)
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# show rss link
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iconsDir = getIconsDir(baseDir)
blogStr += '<p class="rssfeed">'
blogStr += '<a href="' + httpPrefix + '://' + \
domainFull + '/blog/' + nickname + '/rss.xml">'
blogStr += '<img loading="lazy" alt="RSS" title="RSS" src="/' + \
iconsDir + '/rss.png" />'
blogStr += '</a></p>'
return blogStr + htmlFooter()
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return None
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def htmlBlogPage(authorized: bool, session,
baseDir: str, httpPrefix: str, translate: {},
nickname: str, domain: str, port: int,
noOfItems: int, pageNumber: int) -> str:
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"""Returns a html blog page containing posts
"""
if ' ' in nickname or '@' in nickname or '\n' in nickname:
return None
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blogStr = ''
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cssFilename = baseDir + '/epicyon-profile.css'
if os.path.isfile(baseDir + '/epicyon.css'):
cssFilename = baseDir + '/epicyon.css'
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with open(cssFilename, 'r') as cssFile:
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blogCSS = cssFile.read()
blogStr = htmlHeader(cssFilename, blogCSS)
blogStr = blogStr.replace('.cwText', '.cwTextInactive')
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blogsIndex = baseDir + '/accounts/' + \
nickname + '@' + domain + '/tlblogs.index'
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if not os.path.isfile(blogsIndex):
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return blogStr + htmlFooter()
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timelineJson = createBlogsTimeline(session, baseDir,
nickname, domain, port,
httpPrefix,
noOfItems, False, False,
pageNumber)
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if not timelineJson:
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return blogStr + htmlFooter()
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domainFull = domain
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if port:
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if port != 80 and port != 443:
domainFull = domain + ':' + str(port)
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# show previous and next buttons
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if pageNumber is not None:
iconsDir = getIconsDir(baseDir)
navigateStr = '<p>'
if pageNumber > 1:
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# show previous button
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navigateStr += '<a href="' + httpPrefix + '://' + \
domainFull + '/blog/' + \
nickname + '?page=' + str(pageNumber-1) + '">' + \
'<img loading="lazy" alt="<" title="<" ' + \
'src="/' + iconsDir + \
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'/prev.png" class="buttonprev"/></a>\n'
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if len(timelineJson['orderedItems']) >= noOfItems:
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# show next button
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navigateStr += '<a href="' + httpPrefix + '://' + \
domainFull + '/blog/' + nickname + \
'?page=' + str(pageNumber + 1) + '">' + \
'<img loading="lazy" alt=">" title=">" ' + \
'src="/' + iconsDir + \
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'/prev.png" class="buttonnext"/></a>\n'
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navigateStr += '</p>'
blogStr += navigateStr
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for item in timelineJson['orderedItems']:
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if item['type'] != 'Create':
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continue
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blogStr += htmlBlogPostContent(authorized, baseDir,
httpPrefix, translate,
nickname, domain,
domainFull, item,
None, True)
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if len(timelineJson['orderedItems']) >= noOfItems:
blogStr += navigateStr
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# show rss link
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blogStr += '<p class="rssfeed">'
blogStr += '<a href="' + httpPrefix + '://' + \
domainFull + '/blog/' + nickname + '/rss.xml">'
blogStr += '<img loading="lazy" alt="RSS" title="RSS" src="/' + \
iconsDir + '/rss.png" />'
blogStr += '</a></p>'
return blogStr + htmlFooter()
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return None
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def rssHeader(httpPrefix: str,
nickname: str, domainFull: str, translate: {}) -> str:
rssStr = "<?xml version=\"1.0\" encoding=\"UTF-8\" ?>"
rssStr += "<rss version=\"2.0\">"
rssStr += '<channel>'
rssStr += ' <title>' + translate['Blog'] + '</title>'
rssStr += ' <link>' + httpPrefix + '://' + domainFull + \
'/users/' + nickname + '/rss.xml' + '</link>'
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return rssStr
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def rssFooter() -> str:
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rssStr = '</channel>'
rssStr += '</rss>'
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return rssStr
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def htmlBlogPageRSS(authorized: bool, session,
baseDir: str, httpPrefix: str, translate: {},
nickname: str, domain: str, port: int,
noOfItems: int, pageNumber: int) -> str:
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"""Returns an rss feed containing posts
"""
if ' ' in nickname or '@' in nickname or '\n' in nickname:
return None
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domainFull = domain
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if port:
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if port != 80 and port != 443:
domainFull = domain + ':' + str(port)
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blogRSS = rssHeader(httpPrefix, nickname, domainFull, translate)
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blogsIndex = baseDir + '/accounts/' + \
nickname + '@' + domain + '/tlblogs.index'
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if not os.path.isfile(blogsIndex):
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return blogRSS + rssFooter()
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timelineJson = createBlogsTimeline(session, baseDir,
nickname, domain, port,
httpPrefix,
noOfItems, False, False,
pageNumber)
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if not timelineJson:
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return blogRSS + rssFooter()
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if pageNumber is not None:
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for item in timelineJson['orderedItems']:
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if item['type'] != 'Create':
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continue
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blogRSS += htmlBlogPostRSS(authorized, baseDir,
httpPrefix, translate,
nickname, domain,
domainFull, item,
None, True)
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return blogRSS + rssFooter()
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def getBlogIndexesForAccounts(baseDir: str) -> {}:
""" Get the index files for blogs for each account
and add them to a dict
"""
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blogIndexes = {}
for subdir, dirs, files in os.walk(baseDir + '/accounts'):
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for acct in dirs:
if '@' not in acct:
continue
if 'inbox@' in acct:
continue
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accountDir = os.path.join(baseDir + '/accounts', acct)
blogsIndex = accountDir + '/tlblogs.index'
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if os.path.isfile(blogsIndex):
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blogIndexes[acct] = blogsIndex
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return blogIndexes
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def noOfBlogAccounts(baseDir: str) -> int:
"""Returns the number of blog accounts
"""
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ctr = 0
for subdir, dirs, files in os.walk(baseDir + '/accounts'):
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for acct in dirs:
if '@' not in acct:
continue
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if 'inbox@' in acct:
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continue
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accountDir = os.path.join(baseDir + '/accounts', acct)
blogsIndex = accountDir + '/tlblogs.index'
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if os.path.isfile(blogsIndex):
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ctr += 1
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return ctr
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def singleBlogAccountNickname(baseDir: str) -> str:
"""Returns the nickname of a single blog account
"""
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for subdir, dirs, files in os.walk(baseDir + '/accounts'):
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for acct in dirs:
if '@' not in acct:
continue
if 'inbox@' in acct:
continue
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accountDir = os.path.join(baseDir + '/accounts', acct)
blogsIndex = accountDir + '/tlblogs.index'
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if os.path.isfile(blogsIndex):
return acct.split('@')[0]
return None
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def htmlBlogView(authorized: bool,
session, baseDir: str, httpPrefix: str,
translate: {}, domain: str, port: int,
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noOfItems: int) -> str:
"""Show the blog main page
"""
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blogStr = ''
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cssFilename = baseDir + '/epicyon-profile.css'
if os.path.isfile(baseDir + '/epicyon.css'):
cssFilename = baseDir + '/epicyon.css'
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with open(cssFilename, 'r') as cssFile:
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blogCSS = cssFile.read()
blogStr = htmlHeader(cssFilename, blogCSS)
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if noOfBlogAccounts(baseDir) <= 1:
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nickname = singleBlogAccountNickname(baseDir)
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if nickname:
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return htmlBlogPage(authorized, session,
baseDir, httpPrefix, translate,
nickname, domain, port,
noOfItems, 1)
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domainFull = domain
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if port:
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if port != 80 and port != 443:
domainFull = domain + ':' + str(port)
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for subdir, dirs, files in os.walk(baseDir + '/accounts'):
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for acct in dirs:
if '@' not in acct:
continue
if 'inbox@' in acct:
continue
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accountDir = os.path.join(baseDir + '/accounts', acct)
blogsIndex = accountDir + '/tlblogs.index'
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if os.path.isfile(blogsIndex):
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blogStr += '<p class="blogaccount">'
blogStr += '<a href="' + \
httpPrefix + '://' + domainFull + '/blog/' + \
acct.split('@')[0] + '">' + acct + '</a>'
blogStr += '</p>'
return blogStr + htmlFooter()
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return None
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def htmlEditBlog(mediaInstance: bool, translate: {},
baseDir: str, httpPrefix: str,
path: str,
pageNumber: int,
nickname: str, domain: str,
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postUrl: str) -> str:
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"""Edit a blog post after it was created
"""
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postFilename = locatePost(baseDir, nickname, domain, postUrl)
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if not postFilename:
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print('Edit blog: Filename not found for ' + postUrl)
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return None
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postJsonObject = loadJson(postFilename)
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if not postJsonObject:
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print('Edit blog: json not loaded for ' + postFilename)
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return None
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iconsDir = getIconsDir(baseDir)
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editBlogText = '<p class="new-post-text">' + \
translate['Write your post text below.'] + '</p>'
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if os.path.isfile(baseDir + '/accounts/newpost.txt'):
with open(baseDir + '/accounts/newpost.txt', 'r') as file:
editBlogText = '<p class="new-post-text">' + file.read() + '</p>'
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cssFilename = baseDir + '/epicyon-profile.css'
if os.path.isfile(baseDir + '/epicyon.css'):
cssFilename = baseDir + '/epicyon.css'
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with open(cssFilename, 'r') as cssFile:
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editBlogCSS = cssFile.read()
if httpPrefix != 'https':
editBlogCSS = editBlogCSS.replace('https://', httpPrefix+'://')
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if '?' in path:
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path = path.split('?')[0]
pathBase = path
editBlogImageSection = ' <div class="container">'
editBlogImageSection += ' <label class="labels">' + \
translate['Image description'] + '</label>'
editBlogImageSection += ' <input type="text" name="imageDescription">'
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editBlogImageSection += \
' <input type="file" id="attachpic" name="attachpic"'
editBlogImageSection += \
' accept=".png, .jpg, .jpeg, .gif, .webp, ' + \
'.mp4, .webm, .ogv, .mp3, .ogg">'
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editBlogImageSection += ' </div>'
placeholderMessage = translate['Write something'] + '...'
endpoint = 'editblogpost'
placeholderSubject = translate['Title']
scopeIcon = 'scope_blog.png'
scopeDescription = translate['Blog']
dateAndLocation = ''
dateAndLocation = '<div class="container">'
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dateAndLocation += \
'<p><input type="checkbox" class="profilecheckbox" ' + \
'name="schedulePost"><label class="labels">' + \
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translate['This is a scheduled post.'] + '</label></p>'
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dateAndLocation += \
'<p><img loading="lazy" alt="" title="" ' + \
'class="emojicalendar" src="/' + \
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iconsDir + '/calendar.png"/>'
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dateAndLocation += \
'<label class="labels">' + translate['Date'] + ': </label>'
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dateAndLocation += '<input type="date" name="eventDate">'
dateAndLocation += '<label class="labelsright">' + translate['Time'] + ':'
dateAndLocation += '<input type="time" name="eventTime"></label></p>'
dateAndLocation += '</div>'
dateAndLocation += '<div class="container">'
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dateAndLocation += \
'<br><label class="labels">' + translate['Location'] + ': </label>'
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dateAndLocation += '<input type="text" name="location">'
dateAndLocation += '</div>'
editBlogForm = htmlHeader(cssFilename, editBlogCSS)
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editBlogForm += \
'<form enctype="multipart/form-data" method="POST" ' + \
'accept-charset="UTF-8" action="' + \
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pathBase + '?' + endpoint + '?page=' + str(pageNumber) + '">'
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editBlogForm += \
' <input type="hidden" name="postUrl" value="' + postUrl + '">'
editBlogForm += \
' <input type="hidden" name="pageNumber" value="' + \
str(pageNumber) + '">'
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editBlogForm += ' <div class="vertical-center">'
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editBlogForm += \
' <label for="nickname"><b>' + editBlogText + '</b></label>'
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editBlogForm += ' <div class="container">'
editBlogForm += ' <div class="dropbtn">'
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editBlogForm += \
' <img loading="lazy" alt="" title="" src="/' + iconsDir + \
'/' + scopeIcon + '"/><b class="scope-desc">' + \
scopeDescription + '</b>'
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editBlogForm += ' </div>'
editBlogForm += ' <a href="' + pathBase + \
'/searchemoji"><img loading="lazy" ' + \
'class="emojisearch" src="/emoji/1F601.png" title="' + \
translate['Search for emoji'] + '" alt="' + \
translate['Search for emoji'] + '"/></a>'
editBlogForm += ' </div>'
editBlogForm += ' <div class="container"><center>'
editBlogForm += ' <a href="' + pathBase + \
'/inbox"><button class="cancelbtn">' + \
translate['Cancel'] + '</button></a>'
editBlogForm += ' <input type="submit" name="submitPost" value="' + \
translate['Submit'] + '">'
editBlogForm += ' </center></div>'
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if mediaInstance:
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editBlogForm += editBlogImageSection
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editBlogForm += \
' <label class="labels">' + placeholderSubject + '</label><br>'
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titleStr = ''
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if postJsonObject['object'].get('summary'):
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titleStr = postJsonObject['object']['summary']
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editBlogForm += \
' <input type="text" name="subject" value="' + titleStr + '">'
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editBlogForm += ''
editBlogForm += ' <br><label class="labels">' + \
placeholderMessage + '</label>'
messageBoxHeight = 800
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contentStr = postJsonObject['object']['content']
contentStr = contentStr.replace('<p>', '').replace('</p>', '\n')
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editBlogForm += \
' <textarea id="message" name="message" style="height:' + \
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str(messageBoxHeight) + 'px">' + contentStr + '</textarea>'
editBlogForm += dateAndLocation
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if not mediaInstance:
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editBlogForm += editBlogImageSection
editBlogForm += ' </div>'
editBlogForm += '</form>'
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editBlogForm = editBlogForm.replace('<body>',
'<body onload="focusOnMessage()">')
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editBlogForm += htmlFooter()
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return editBlogForm