pysteve/www/htdocs/js/steve_monitor.js

/*
 Licensed to the Apache Software Foundation (ASF) under one or more
 contributor license agreements.  See the NOTICE file distributed with
 this work for additional information regarding copyright ownership.
 The ASF licenses this file to You under the Apache License, Version 2.0
 (the "License"); you may not use this file except in compliance with
 the License.  You may obtain a copy of the License at

     http://www.apache.org/licenses/LICENSE-2.0

 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
*/

// Function for fetching JSON from the REST API
function getJSON(theUrl, xstate, callback) {
    var xmlHttp = null;
    if (window.XMLHttpRequest) {
        xmlHttp = new XMLHttpRequest();
    } else {
        xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
    }
    xmlHttp.open("GET", theUrl, true);
    xmlHttp.send(null);
    xmlHttp.onreadystatechange = function(state) {
        if (xmlHttp.readyState == 4 && xmlHttp.status && xmlHttp.status >= 200) {
            if (callback) {
                window.setTimeout(callback, 0.01, xmlHttp.status, (xmlHttp.responseText && xmlHttp.responseText.length > 1) ? JSON.parse(xmlHttp.responseText) : null, xstate);
            }
        }
    }
}

var firstTime = true
function getIssues() {
    election = document.location.search.substr(1)
    if (firstTime) {
        fetchData(election)
        firstTime = false
    }
    getJSON("/steve/admin/view/" + election, election, listIssues)
}

var ehash = null
var eid = null
var issues = []
var basedata = {}
var votes = {}
var oldvotes = {}
var recasts = {}
var recasters = {}
var rigged = false
var riggedIssues = {}
var backlog = {}
var oldbacklog = {}

function saveData(election) {
    if (typeof(window.localStorage) !== "undefined" ) {
        var js = {
            issues: issues,
            basedata: basedata,
            votes: votes,
            oldvotes: oldvotes,
            recasts: recasts,
            recasters: recasters,
            rigged: rigged,
            riggedIssues: riggedIssues,
            backlog: backlog,
            oldbacklog: oldbacklog
        }
        try {
            window.localStorage.setItem("monitor_" + election, JSON.stringify(js))
        } catch(e) {
            
        }
    }
}

function fetchData(election) {
    if (typeof(window.localStorage) !== "undefined" ) {
        var d = window.localStorage.getItem("monitor_" + election)
        if (d) {
            var js = JSON.parse(d)
            issues = js.issues
            basedata = js.basedata
            votes = js.votes
            oldvotes = js.oldvotes
            recasts = js.recasts
            recasters = js.recasters
            rigged = js.rigged
            riggedIssues = js.riggedIssues,
            backlog = js.backlog || {},
            oldbacklog = js.oldbacklog || {}
        }
    }
}

function listIssues(code, response, election) {
    if (code == 200) {
        eid = election
        issues = response.issues
        basedata = response.base_data
        document.getElementById('title').innerHTML += " " + basedata.title
        var obj = document.getElementById('preloaderWrapper')
        obj.innerHTML = ""
        obj.setAttribute("id", "contents")
        for (i in issues) {
            window.setTimeout(showChanges, 1000, issues[i])
        }
    } else {
        alert(response.message)
    }
}

function updateVotes(code, response, issue) {
    if (code == 200) {
        recasters[issue] = recasters[issue] ? recasters[issue] : {}
        oldvotes[issue] = votes[issue] ? votes[issue] : {}
        oldbacklog[issue] = backlog[issue]
        backlog[issue] = response.history
        votes[issue] = {}
        var founduid = {}
        recasts[issue] = 0
        for (var i in backlog[issue]) {
            var vote = backlog[issue][i]
            if (founduid[vote.uid]) {
                recasts[issue]++;
            }
            founduid[vote.uid] = true
            votes[issue][vote.uid] = {
                timestamp: vote.timestamp,
                vote: vote.vote
            }
        }
        var is = {}
        for (i in issues) {
            if (issues[i].id == issue) {
                is = issues[i]
                break
            }
        }
        if (is.hash && response.issue.hash != is.hash) {
            riggedIssues[issue] = "WAS: " + JSON.stringify(is) + " - IS NOW: " + JSON.stringify(response.issue)
        }
        if (ehash == null) {
            ehash = response.hash
        }
        if (ehash != response.hash) {
            rigged = true
        }
        
    } else if (response.message == "Issue not found") {
        var header = document.getElementById('issue_' + issue + "_header")
        header.innerHTML = "<font color='red'><b>Issue deleted?: " + response.message + "</b></font>"
    }
}

var timeouts = {}

function showDetails(issueid, update) {
    var obj = document.getElementById('issue_' + issueid + '_details')
    if (obj.innerHTML.length > 0 && !update) {
        obj.innerHTML = ""
        window.clearTimeout(timeouts[issueid])
    } else {
        obj.innerHTML = ""
        for (i in votes[issueid]) {
            var rawvote = votes[issueid][i]
            var vote = null
            var nrc = -1
            for (var n in backlog[issueid]) {
                if (backlog[issueid][n].uid == i) {
                    nrc++
                }
            }
            var add = ""
            if (rawvote.timestamp) {
                vote = rawvote.vote
                add = ". Cast at " + new Date(rawvote.timestamp*1000).toLocaleString()
            } else {
                vote = rawvote
            }
            if (nrc > 0) {
                nrc = "Vote recast " + nrc + " time(s)"
            } else {
                nrc = "No recasts yet"
            }
            obj.innerHTML += "<b>" + i + ": </b> " + vote + " - " + nrc + add + "<br/>"
        }
        timeouts[issueid] = window.setTimeout(showDetails, 2500, issueid, true)
    }
    
}


function showChanges(issue) {
    var parent = document.getElementById('issue_' + issue.id)
    var header = document.getElementById('issue_' + issue.id + "_header")
    if (rigged) {
        document.getElementById('title').innerHTML = "<font color='red'>ELECTION HAS BEEN CHANGED SINCE IT OPENED, POSSIBLE RIGGING ATTEMPT!</font>"
    }
    if (!parent) {
        parent = document.createElement('div')
        parent.setAttribute("id", "issue_" + issue.id)
        parent.setAttribute("class", "monitor_issue")
        document.getElementById('contents').appendChild(parent)
        
        parent.innerHTML = "<h3>Issue #" + issue.id + ": " + issue.title + "</h3>"
        
        header = document.createElement('div')
        header.setAttribute("id", "issue_" + issue.id + "_header")
        header.innerHTML = "Awaiting vote data...hang on!"
        parent.appendChild(header)
        
        details = document.createElement('div')
        details.setAttribute("id", "issue_" + issue.id + "_details")
        details.setAttribute("class", "monitor_details")
        parent.appendChild(details)
        
        window.setTimeout(showChanges, 2000, issue)
    } else {
        window.setTimeout(showChanges, 15000, issue)
        numvotes = 0;
        if (votes[issue.id]) {
            for (i in votes[issue.id]) numvotes++;
        }
        if (numvotes > 0) {
            var v = votes[issue.id]
            sinceLast = (backlog[issue.id] || []).length - (oldbacklog[issue.id] || []).length
            nrc = 0
            var fuid = {}
            for (var z in backlog[issue.id]) {
                var v = backlog[issue.id][z]
                fuid[v.uid] = fuid[v.uid] ? fuid[v.uid] : 0
                fuid[v.uid]++
            }
            for (var x in fuid) {
                if (fuid[x] > 1) nrc++;
            }
            header.innerHTML = ""
            if (riggedIssues[issue.id] && riggedIssues[issue.id].length > 0) {
                header.innerHTML += "<a href='#' onclick=\"alert(riggedIssues['" + issue.id + "']);\"><font color='red'>ISSUE POSSIBLY RIGGED! </font></a><br/> "
            }
            header.innerHTML += numvotes + " voters have cast, " + sinceLast + " new votes cast since last update. " + recasts[issue.id] + " votes have been recast, split among " + nrc + " voters."
            header.innerHTML += " <a href='javascript:void(showDetails(\"" + issue.id + "\"));'>Show details</a>"
            header.innerHTML += " &nbsp; <a href='/steve/admin/monitor/" + eid + "/" + issue.id + "' target='_blank'>Get JSON</a>"
        } else {
            header.innerHTML = "No votes cast yet..!"
        }
    }
    saveData(eid)
    getJSON("/steve/admin/backlog/" + eid + "/" + issue.id, issue.id, updateVotes)
    
}


function disableF5(e) {
    if ((e.which || e.keyCode) == 116 || (e.which || e.keyCode) == 82) {
        e.preventDefault();
        alert("PLEASE...Do not refresh this page")
    }
}

//window.onkeydown = disableF5