our own crutchy solution for https://jira.atlassian.com/browse/JSDSERVER-170 linking a additional confluence space into jira issues

jira2confluence.js

//
// a hackish way to link a additional confluence space into jira issues
// if you like to use this, pls search for all TODO tags and adjust at least these to your needs
//
// requires: js-combinatorics
//
// I publish this code snippet in the hope someone might find it useful and with the express note:
//   * no warranty
//   * use at your own risk
//   * ugly code combined with cerebral diarrhea: you might risk to vomit
//

// TODO: the confluence space key to search in
var cspacekey = "CONFSPACEKEY"

// TODO: define the Confluence APPlikation link ID
// find this via /rest/applinks/1.0/applicationlink
var cappid = "00000000-6666-0000-1111-000000000000"

// TODO: define list of keywords that should be ignored
var IGNOREWORDS = [
      'computer', 'test', 'problem'
    ]

// TODO: define list of keywords that should be used as negative search args
var NEGATIVESEARCHWORDS = [ "XXX", "TODO" ]


// +++++++++++++++++++ //
// REST ajax functions //
// +++++++++++++++++++ //
function isAssignableUser() {
  ret = false;
  AJS.$.ajax({
    url: contextPath+"/rest/api/2/mypermissions",
    type: 'get',
    dataType: 'json',
    jsonp: false,
    async: false,
    success: function(data) {
      ret = data.permissions.ASSIGNABLE_USER.havePermission
    },
    error: function(o, err, exx) {
      console.error(err+":"+exx)
    }
  });
  return ret;
}
function getUser() {
  AJS.$.ajax({
    url: contextPath+"/rest/auth/1/session",
    type: 'get',
    dataType: 'json',
    jsonp: false,
    async: false,
    success: function(data) {
      ret = data.name
    },
    error: function(o, err, exx) {
      console.error(err+":"+exx)
    }
  });
  return ret;
}

// +++++++++++++++++++++++ //
// jira 2 confluence link  //
// +++++++++++++++++++++++ //
var cqlSearchAndDisplayResults = []
function cqlSearchAndDisplay(cql, maxResults) {
  var maxResults = maxResults || 10
  var ret = 0
  var restURL = AJS.params.baseURL+"/rest/confluenceIssueLink/1/confluence/search?query="+encodeURIComponent(cql)+"&appId="+cappid+"&maxResults="+maxResults+"&spaceKey="+cspacekey
  AJS.$("#JIRA2CONFLUENCEcont").append("<!-- // "+restURL+" // -->")
  var singleLineH = 20
  AJS.$.ajax({
    url: restURL,
    type: 'get',
    dataType: 'json',
    async: false,
    success: function(data) {
      results = data.values
      for (var r=0; r<results.length; r++) {
        res = results[r]
        if ( cqlSearchAndDisplayResults.indexOf(res.url) >= 0) {
          // avoid duplicates
          continue
        }
        cqlSearchAndDisplayResults.push(res.url)
        AJS.$("#JIRA2CONFLUENCEcont").append("<div id='JIRA2CONFLUENCEcont"+r+"' style='margin:2px;height:"+singleLineH+"px;overflow:hidden;'>"
                                             +"<a href='"+res.url+"' target='_blank'>"+res.title+"</a> <span style='font-size: small;color:grey'>"
                                             +res.excerpt+"</span></div>\n")
        AJS.$("#JIRA2CONFLUENCEcont"+r).click(function() {
          var currentH = AJS.$(this).height();
          console.log("currentH:"+currentH)
          if (currentH == singleLineH) {
            AJS.$(this).css('height', 'auto');
            var fullHeight = AJS.$(this).height();
            AJS.$(this).height(currentH);
            AJS.$(this).animate({height: fullHeight}, 500);
          } else {
            AJS.$(this).animate({height: singleLineH}, 500);
          }
        })
      }
      ret = results.length
    },
    error: function(o, err, exx) {
      AJS.$("#JIRA2CONFLUENCEcont").append('<div style="color:red"><b>'+err+'</b><br />'+exx+'</div>')
    }
  })
  return ret
}


var assignableUser = isAssignableUser()
var jiraUser = getUser()
function Jira2ConfDo() {
  if ( AJS.$("#JIRA2CONFLUENCEcont").length > 0 ) {
    // avoid duplicated calls
    return true
  }
  // TODO: define condition to match the jira project key where to display the additional list of links
  if ( WRM._unparsedData["projectKey"]="\"JIRAPROJECTKEY\"" && assignableUser && AJS.$("#summary-val").text()) {
    console.log("jira2confluence start ...")
    // keep this lowercase
    AJS.$('<div id="JIRA2CONFLUENCE" class="module toggle-wrap expanded">'
          +'<div class="mod-header"><h2 class="toggle-title">Confluence Links</h2></div>'
          +'<div class="mod-content" id="JIRA2CONFLUENCEcont"></div></div>').insertBefore( AJS.$('#knowledgebase-issueview-panel') );
    console.log("jira2confluence  JIRA2CONFLUENCE created ...")
    summarywords = AJS.$("#summary-val").text().split(/[- \/,.]/)
    var sumwordarr = []
    for (var i=0; i < summarywords.length; i++) {
      // strip non word chars
      sumword = summarywords[i].replace(/\W+/g, '').toLowerCase();
      // ignore numbers only
      if ( /^\d+$/.test(sumword) ) {
        continue
      }
      if (sumword.length < 3 || AJS.$.inArray(sumword, IGNOREWORDS) > -1) {
        continue
      }
      //console.log("jira2confluence sumword: "+sumword)
      sumwordarr.push(sumword)
    }
    // add issuetype, labels and components
    var components = AJS.$('#components-field').text().split(/[ ,]+/)
    for (var i=0; i < components.length; i++) {
      kw = components[i].trim().toLowerCase()
      if (kw.length == 0) continue
      if (kw == 'none') continue
      if ( AJS.$.inArray(kw, sumwordarr) == -1) {
        sumwordarr.push(kw)
      }
    }
    var labels = AJS.$("#wrap-labels").text().trim().split(/[ ,:]+/)
    labels.splice(0,1)
    labels.splice(-1,1)
    for (var i=0; i < labels.length; i++) {
      kw = labels[i].trim().toLowerCase()
      if (kw.length == 0) continue
      if (kw == 'none') continue
      if ( AJS.$.inArray(kw, sumwordarr) == -1) {
        sumwordarr.push(kw)
      }
    }
    var issuetype = AJS.$("#type-val").text().trim().toLowerCase()
    var ignoreIssueTypesAsKeyword = [ "incident", "change", "problem" ]
    if (ignoreIssueTypesAsKeyword.indexOf(issuetype) >= 0) {
      sumwordarr.push(issuetype)
    }

    var cqlresults = 0
    if (sumwordarr.length > 1) {
      // match min. 2 summary words
      // js-combinatorics loaded via Announcement Banner: version 0.5.4 
      sumwordarrcomb = Combinatorics.combination(sumwordarr, 2)
      var cql = ""
      while(cmb = sumwordarrcomb.next()) {
        if ( cql.length > 0 ) {
          cql += " OR "
        }
        cql += "("+cmb.join(" ")+")"
      }
      if (cql.length > 0) {
        // ignore NEGATIVESEARCHWORDS
        cql = "("+cql+") -"+NEGATIVESEARCHWORDS.join(" -")
        cqlresults = cqlSearchAndDisplay(cql)
      }
    }
    if ( cqlresults <= 3) {
      // if the search matching 2 words did not find sufficient results
      // fall back to simple search
      cql = "("+sumwordarr.join(" OR ")+")-"+NEGATIVESEARCHWORDS.join("-")
      if (cqlSearchAndDisplay(cql, 10-cqlresults) == 0) {
        AJS.$("#JIRA2CONFLUENCEcont").append('<b>no results</b>')
        console.log("jira2confluence : no results")
      }
    }
    console.log("jira2confluence done")
  }
}
// hackish way to fix the late load in servicedesk view
function Jira2ConfLoadTry() {
  if (!($("#knowledgebase-issueview-panel").size() && AJS.params.baseURL)) {
    window.requestAnimationFrame(Jira2ConfLoadTry);
  } else {
    Jira2ConfDo()
  }
}
Jira2ConfLoadTry()

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