User:Js/urldecoder.js
< User:Js
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 | This user script seems to have a documentation page at User:Js/urldecoder. |
//[[user:js/urldecoder]]
function urlDecoderButton(){
var tlb = document.getElementById('toolbar')
if (!tlb) return
var bt = document.createElement('input')
bt.type = 'button'; bt.onclick = urlDecoderRun; bt.id = 'urlDecoder'
bt.value = '→[\[]]';
bt.title = 'Decode URL before cursor or all URLs in selected text'
bt.style.cssText = 'background:#adbede; height:22px; vertical-align:top; padding:0'
tlb.appendChild(bt)
if (!window.urlDecoderKey) return
bt.accessKey = urlDecoderKey
bt.title += ' ['+urlDecoderKey+']'
updateTooltipAccessKeys([bt])
}
if (wgAction=='edit' || wgAction=='submit') addOnloadHook(urlDecoderButton)
function urlDecoderRun(){ //main function
var httpRegExp = '(https?:\\/\\/[^\\]\\[\\n\\r<>" ]+)' // except []<>"
var beforeCursor = new RegExp('(\\[{0,2})'+httpRegExp+'( +[^\\]\n]+)?\\]{0,2}$', 'i')
var localPrefix = WMPrefixes(unSecure(wgServer+wgScript))
var newText, linkSize, txtarea = document.editform.wpTextbox1
var isBeforeCursor = false
if (document.selection) { //IE/Opera
var scrollTop = document.documentElement.scrollTop
txtarea.focus()
range = document.selection.createRange()
if (!range.moveStart) return
if (range.text){
newText = processSelText(range.text)
}else { //no selection
if (!(rr=range.duplicate())) return
rr.moveStart('character', - 1500)
linkSize = processBeforeCursor(rr.text)
if (!linkSize) return
range.moveStart('character', - linkSize) //select matched
}
//replace text
if (newText != range.text){
range.text = newText
if (navigator.userAgent.indexOf('MSIE') != -1) newText = newText.replace(/\r/g,'') //for IE: do not count \r
range.moveStart('character', - newText.length)
range.select()
}
document.documentElement.scrollTop = scrollTop //restore window scroll position
}else if (txtarea.selectionStart || txtarea.selectionStart == '0') { // Mozilla
var scrollTop = txtarea.scrollTop, txt = txtarea.value
txtarea.focus()
var startPos = txtarea.selectionStart, endPos = txtarea.selectionEnd
if (startPos != endPos){
newText = processSelText(txt.substring(startPos, endPos))
}else{ //no selection
linkSize = processBeforeCursor(txt.substring((endPos-1500>0?endPos-1500:0), endPos))
if (!linkSize) return
startPos = endPos - linkSize //select matched
}
//replace text
if (newText != txt.substring(startPos, endPos)){
txtarea.value = txt.substring(0, startPos) + newText + txt.substring(endPos, txtarea.value.length)
txtarea.selectionEnd = startPos + newText.length
txtarea.selectionStart = startPos
}
txtarea.scrollTop = scrollTop
}//end of main function
function processBeforeCursor(str){//finds http:.* in string, returns its length and also newText var
isBeforeCursor = true
var pos = str.lastIndexOf('http://')
if (pos == -1) pos = str.lastIndexOf('https://')
if (pos == -1) return 0
if (pos >= 2) str = str.substring(pos-2) //move left to include leading [s
var ma = str.match(beforeCursor) // result: (whole string)' '[', 'http:...', ' name]'
if (!ma) return 0
if (ma[3]) //link with name: automatically add brackets
newText = simplifyMatched(ma[0], '[', ma[2], ma[3]+']')
else //just url: add closing bracket only if there is leading bracket
newText = simplifyMatched(ma[0], ma[1], ma[2], ma[1]?']':'')
return ma[0].length
}
function processSelText(txt){
txt = txt.replace(RegExp('(\\[{0,2})' + httpRegExp + '([^\\]\\[\\n\\r]*?\\]\\]?)?', 'ig'),
simplifyMatched)
if (window.urlDecoderIntLinks) txt = txt.replace(/\[\[[^\]\|\n]+/g,
function(lnk){//skip user_talk
return /^\[\[user_talk:[^#]+$/i.test(lnk) ? lnk : decodeAnchor(lnk)
})
return txt
}
function simplifyMatched(str, bracket, url, rest){//arguments: (whole string), '[', url, ' name]'; calls decodeUrl
var pos = url.indexOf("''")
if (pos != -1) url = url.substring(0, pos) // double ' is not allowed inside urls
if (!bracket){//no brackets, just url
var trail = url.match(RegExp('[,;\\\\\.:!\\?' //trailing punctuation, per Parser.php
+ (!/\(/.test(url) ? '\\)' : '') + ']+$' )) //trailing no-matching )
if (trail) url = url.substring(0, url.length-trail[0].length) //move these out of url
if (/(\}\}|\|)$/.test(url)) return str //trailing | or }} can be a part of template, skip to be safe
return decodeUrl(url) + str.substring(url.length)
}else if (rest) //both brackets and possibly name
return decodeUrl(url, rest.replace(/\]+$|^ +| +$/g,'')) //trim ending brackets and spaces in 'name]'
else return str //probably broken wikicode in selected text
}
function decodeUrl(url, name){ //url -> %-decoded -> [[link|name]] (if possible); name is optional
url = unSecure(url)
if (url.indexOf('%') != -1) try { url = decodeURI(url) } catch(e){} //decode %
url = url.replace(/%(3B|2F|2C|3A)/g, decodeURIComponent) //decode ;/,:
url = url.replace(/[ <>"\[\]]/g, encodeURIComponent) //" disallowed chars
if (isBeforeCursor)
for (var n in window.urlDecoderEngNames) //to eng keywords
url = url.replace(RegExp('(title=|wiki\/)('+urlDecoderEngNames[n]+':)'), '$1' + n + ':')
var link = toWikilink(url)
if (!link && window.urlDecoderCustom
&& (link = urlDecoderCustom(url)) && /^(https?:\/\/|\{\{)/.test(link))
{url = link; link = null} //still external
if (link){
link = link.replace(/%(3f|26)/ig, decodeURIComponent) //decode ?&
link = link.replace(/%3f/ig,'?') //decode ?
if (wgNamespaceNumber==0 || wgNamespaceNumber==14) link=link.replace(/^:/,'') //interwiki?
return '[\[' + link + (name?'|'+name:'') + ']]'
}else if (typeof name == 'string') return '[' + url + (name?' '+name:'') + ']' //empty name
else return url
}
function toWikilink(url){//url -> wikilink, otherwise null
//try bugzilla and user-defined prefixes
if (!window.urlDecoderPrefixes) urlDecoderPrefixes = {}
urlDecoderPrefixes['https://bugzilla.wikimedia.org/show_bug.cgi?id=']='mediazilla'
for (var key in urlDecoderPrefixes)
if (url.toLowerCase().indexOf(key)!=-1)
return urlDecoderPrefixes[key]+':'+ url.substring(url.indexOf(key)+key.length)
//try WM prefixes
var parts = url.substring(7).split('/')
if (parts[1]!='wiki' || url.indexOf('?')!=-1) return null
var linkPrefix = WMPrefixes(url.toLowerCase()), prefixes = ''
if (!linkPrefix) return null
var title = url.substring(parts[0].length + parts[1].length + 9) //get part after /wiki/
title = decodeAnchor(title)
if (linkPrefix[0] && (linkPrefix[0] != localPrefix[0])) prefixes = linkPrefix[0]
if (linkPrefix[1] && (linkPrefix[1] != localPrefix[1])) prefixes += ':' + linkPrefix[1]
if (prefixes || isColonNeeded(title)) prefixes += ':' //dividing colon or cat/file leading colon
return prefixes + title
}
function decodeAnchor(link){//simplify internal link: replace %20 and _ then decode anchor
link = link.replace(/(_|%20)/g, ' ').replace(/^ +| +$/g, '')
var parts = link.split('#')
if (parts.length != 2) return link //no anchor
var anchor = parts[1], hidIdx = -1, hidden = []
//decode 4, 3 and 2-byte: http://en.wikipedia.org/wiki/UTF-8
anchor = anchor.replace(/\.F[0-4]\.[89AB][\dA-F]\.[89AB][\dA-F]\.[89AB][\dA-F]/g, deChar)
anchor = anchor.replace(/\.E[\dA-F]\.[89AB][\dA-F]\.[89AB][\dA-F]/g, deChar)
anchor = anchor.replace(/\.[CD][\dA-F]\.[89AB][\dA-F]/g, deChar)
anchor = anchor.replace( //hide IPs
/(?:^|[^0-9A-F\.])(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)/,
function(s){ hidden[++hidIdx] = s; return '\x01' + hidIdx + '\x02' }
)
//decode 1-byte chars: all symbols except -.:_ and []{} prohibited in links
anchor = anchor.replace(/\.[2-7][0-9A-F]/g, function(hhh){
var ch = deChar(hhh)
if ('!"#$%&\'()*+,/;<=>?@\\^`~'.indexOf(ch) >= 0) return ch; else return hhh
})
//unhide IPs and return
for (var i=hidIdx; i>=0; i--) anchor = anchor.replace('\x01'+i+'\x02', hidden[i])
if (anchor.indexOf("''") != -1) return link //cannot have double '' in link
else return parts[0] + '#' + anchor
function deChar(ss){
try{ss = decodeURIComponent(ss.replace(/\.([0-9A-F][0-9A-F])/g, '%$1'))} catch(e){}
return ss
}
}
function WMPrefixes(url){ // htp://en.wikipedia.org/wiki/... -> [ 'w', 'en']
var dd = url.substring(7).split('/')[0].split('.') // -> ['en','wikipedia','org']
if (dd.pop() != 'org') return null
var proj='', lang = '', part = dd.pop()
if (proj = {'mediawiki':'mw','wikimediafoundation':'foundation'}[part]);
else if (proj = {'wikipedia':'w','wikibooks':'b','wikinews':'n','wikiquote':'q',
'wikisource':'s','wikiversity':'v','wiktionary':'wikt'}[part]){
lang = dd.pop()
if (!lang || lang=='www') lang = ''
else if (lang=='test') {lang=''; proj='testwiki'}
}else if (part == 'wikimedia'){
part = dd.pop()
if (!part || part=='www') proj = 'foundation'
else if (/^(meta|commons|incubator|species|strategy)$/.test(part)) proj = part
else return null
}else return null
return [proj, lang]
}
function unSecure(url){
return url.replace(/https:\/\/secure\.wikimedia\.org\/(\w+)\/(\w+)\/([^\]\|\n\r ]+)/,
'http://$2.$1.org/$3')
}
function isColonNeeded(pg){
if (pg.indexOf(':')==-1) return false
urlDecoderNS = window.urlDecoderNS || {}
urlDecoderNS.en = 'image'
var ns = urlDecoderNS[wgContentLanguage]
if (typeof ns != 'string') ns = requestColonNS()
return RegExp('^('+ns+'|file|category) *:','i').test(pg)
}
function requestColonNS(){
var whatsthis = ' <a href="http://en.wikipedia.org/wiki/user:js/urldecoder#Localization" target=_blank>(?)</a>'
showMsg('Requesting namespaces...'+whatsthis)
var aj = sajax_init_object(), q = null, ns = []
aj.open('GET', '/w/api.php?format=json&action=query&meta=siteinfo&siprop=namespaces|namespacealiases', false)
aj.send(null)
try { eval('q='+aj.responseText); q = q.query
} catch(e){return null}
ns.push(q.namespaces[6]['*']); ns.push(q.namespaces[14]['*'])
for (var k in q.namespacealiases)
if (q.namespacealiases[k].id==6 || q.namespacealiases[k].id==14)
ns.push(q.namespacealiases[k]['*'])
ns = ns.join('|').toLowerCase()
urlDecoderNS[wgContentLanguage] = ns
showMsg("<code>urlDecoderNS = {'"+wgContentLanguage+"':'"+ns+"'}<code>"+whatsthis)
return ns
}
function showMsg(htm){
var dv = document.getElementById('edit-msg')
if (!dv){
dv = document.createElement('div')
dv.id = 'edit-msg'; dv.style.cssText = 'margin:5px; border:1px solid gray'
var tbox = document.getElementById('wpTextbox1')
tbox.parentNode.insertBefore(dv, tbox)
}
dv.innerHTML = htm; dv.style.display = ''
setTimeout(hideMsg, 15000)
}
function hideMsg(){
var dv = document.getElementById('edit-msg')
dv.style.display = 'none'
}
}