25 |
26 |
27 |
How does BlockVote works?
28 |
29 |
30 |
31 | by
32 | Election Commission of India
33 |
34 |
35 |
36 |
37 |
38 |
Posted on May 1, 2020 at 12:00 PM
39 |
40 |
41 |
42 |
43 |
45 |
46 |
47 |
48 |
49 |
Standing in the queue and waiting for your turn to cast vote is a part of a history now.
50 |
51 |
Election Commission of India proposes a new system of voting where everything is transparent and no question
52 | of tampering the voting machine as it doesn't exists in first place.
53 |
54 |
BlockVote is the upcoming way of casting vote where all the votes will be stored in the Blockchain, which
55 | makes the system tamper proof and fully transparent.
56 |
57 |
58 | This is still under various trials! Please expect few bugs.
59 |
60 |
How to use?
61 |
62 |
1. Install MetaMask Browser Extension.
63 |
2. Make sure that the Ethereum Account which you've been assigned is imported into MetaMask.
64 |
3. Visit the Cast Vote Page and cast your vote
65 |
Regards,
66 |
68 |
69 |
70 |
71 |
72 |
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/src/img/banner.jpg:
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https://raw.githubusercontent.com/0xSumitBanik/BlockVote/30f7fc24aad0d9c58350cc13effcda8a564fb692/src/img/banner.jpg
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/src/img/eci.png:
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https://raw.githubusercontent.com/0xSumitBanik/BlockVote/30f7fc24aad0d9c58350cc13effcda8a564fb692/src/img/eci.png
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/src/img/favicon.svg:
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1 |
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/src/img/vote-side-image.jpg:
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https://raw.githubusercontent.com/0xSumitBanik/BlockVote/30f7fc24aad0d9c58350cc13effcda8a564fb692/src/img/vote-side-image.jpg
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/src/index.html:
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1 |
2 |
3 |
4 |
5 |
6 |
7 |
BlockVote
8 |
9 |
10 |
11 |
12 |
13 |
16 |
17 |
18 |
19 |
20 |
Hello, Voter!
21 |
Welcome to new age of voting.
22 |
23 |
24 |
Learn more
25 |
26 |
27 |
28 |
29 |
30 |
31 |
32 |
33 |
34 |
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/src/js/app.js:
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1 | App = {
2 | web3Provider: null,
3 | contracts: {},
4 | account: '0x0',
5 | hasVoted: false,
6 |
7 | init: function () {
8 | return App.initWeb3();
9 | },
10 |
11 | initWeb3: function () {
12 | // TODO: refactor conditional
13 | if (typeof web3 !== 'undefined') {
14 | // If a web3 instance is already provided by Meta Mask.
15 | App.web3Provider = web3.currentProvider;
16 | web3 = new Web3(web3.currentProvider);
17 | } else {
18 | // Specify default instance if no web3 instance provided
19 | App.web3Provider = new Web3.providers.HttpProvider('http://localhost:8545');
20 | ethereum.enable();
21 | web3 = new Web3(App.web3Provider);
22 | }
23 | return App.initContract();
24 | },
25 |
26 | initContract: function () {
27 | $.getJSON("Election.json", function (election) {
28 | // Instantiate a new truffle contract from the artifact
29 | App.contracts.Election = TruffleContract(election);
30 | // Connect provider to interact with contract
31 | App.contracts.Election.setProvider(App.web3Provider);
32 |
33 | App.listenForEvents();
34 | App.listenForAccountChange();
35 |
36 | return App.render();
37 | });
38 | },
39 |
40 | // Listen for events emitted from the contract
41 | listenForEvents: function () {
42 | App.contracts.Election.deployed().then(function (instance) {
43 | // Restart Chrome if you are unable to receive this event
44 | // This is a known issue with Metamask
45 | // https://github.com/MetaMask/metamask-extension/issues/2393
46 | instance.votedEvent({}, {
47 | fromBlock: 'latest',
48 | toBlock: 'latest'
49 | }).watch(function (error, event) {
50 | console.log("event triggered", event)
51 | // Reload when a new vote is recorded
52 | App.render();
53 | });
54 | });
55 | },
56 | listenForAccountChange: function () {
57 | ethereum.on('accountsChanged', function (accounts) {
58 | App.account = accounts[0];
59 | App.render();
60 | })
61 | },
62 |
63 | render: function () {
64 | var electionInstance;
65 | var loader = $("#loader");
66 | var content = $("#content");
67 |
68 | loader.show();
69 | content.hide();
70 |
71 | // Load account data
72 |
73 | web3.eth.getAccounts(function (err, account) {
74 | $("#accountAddress").html(`
Your Voter's Address:
75 | ${account[0]}
76 |
(Refresh the page if you've migrated to new account) `);
77 | App.account = account[0];
78 | $('#bv-address').text(`${App.account}`)
79 | document.getElementById("bv-qr-code").innerHTML = "";
80 |
81 | new QRCode(document.getElementById("bv-qr-code"), {
82 | text: `${App.account}`,
83 | width: 170,
84 | height: 170,
85 | colorDark: "#000000",
86 | colorLight: "#ffffff",
87 | correctLevel: QRCode.CorrectLevel.H
88 | });
89 | });
90 |
91 | // Load contract data
92 | App.contracts.Election.deployed().then(function (instance) {
93 | electionInstance = instance;
94 | return electionInstance.candidatesCount();
95 | }).then(function (candidatesCount) {
96 | var candidatesResults = $("#candidatesResults");
97 | candidatesResults.empty();
98 |
99 | var candidatesSelect = $('#candidatesSelect');
100 | candidatesSelect.empty();
101 |
102 | for (var i = 1; i <= candidatesCount; i++) {
103 | electionInstance.candidates(i).then(function (candidate) {
104 | var id = candidate[0];
105 | var name = candidate[1];
106 | var voteCount = candidate[3];
107 | var party = candidate[2];
108 | // Render candidate Result
109 | var candidateTemplate =
110 | `
${id} ${name} ${party} ${voteCount} `;
111 | candidatesResults.append(candidateTemplate);
112 |
113 | // Render candidate ballot option
114 | var candidateOption = `
${name} (${party}) `
115 | candidatesSelect.append(candidateOption);
116 | });
117 | }
118 | return electionInstance.voters(App.account);
119 | }).then(function (hasVoted) {
120 | // Do not allow a user to vote
121 | if (hasVoted) {
122 | $('form').hide();
123 | $('#vote-msg').html(`
124 |
125 | You have already voted!
126 |
127 |
`)
128 | $('#bv-voted').text(`Yes`)
129 | }
130 | else {
131 | $('#bv-voted').text(`No`)
132 |
133 | }
134 | loader.hide();
135 | content.show();
136 | }).catch(function (error) {
137 | //console.warn(error);
138 | });
139 | },
140 |
141 | castVote: function () {
142 | var candidateId = $('#candidatesSelect').val();
143 | App.contracts.Election.deployed().then(function (instance) {
144 | return instance.vote(candidateId, { from: App.account });
145 | }).then(function (result) {
146 | // Wait for votes to update
147 | $("#content").hide();
148 | $("#loader").show();
149 | alert("Thanks for voting")
150 | }).catch(function (err) {
151 | console.error(err);
152 | });
153 | }
154 | };
155 |
156 | $(function () {
157 | $(window).load(function () {
158 | App.init();
159 | });
160 | });
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',trigger:"hover focus",title:"",delay:0,html:!1,container:!1,viewport:{selector:"body",padding:0}},c.prototype.init=function(b,c,d){if(this.enabled=!0,this.type=b,this.$element=a(c),this.options=this.getOptions(d),this.$viewport=this.options.viewport&&a(a.isFunction(this.options.viewport)?this.options.viewport.call(this,this.$element):this.options.viewport.selector||this.options.viewport),this.inState={click:!1,hover:!1,focus:!1},this.$element[0]instanceof document.constructor&&!this.options.selector)throw new Error("`selector` option must be specified when initializing "+this.type+" on the window.document object!");for(var e=this.options.trigger.split(" "),f=e.length;f--;){var g=e[f];if("click"==g)this.$element.on("click."+this.type,this.options.selector,a.proxy(this.toggle,this));else if("manual"!=g){var h="hover"==g?"mouseenter":"focusin",i="hover"==g?"mouseleave":"focusout";this.$element.on(h+"."+this.type,this.options.selector,a.proxy(this.enter,this)),this.$element.on(i+"."+this.type,this.options.selector,a.proxy(this.leave,this))}}this.options.selector?this._options=a.extend({},this.options,{trigger:"manual",selector:""}):this.fixTitle()},c.prototype.getDefaults=function(){return c.DEFAULTS},c.prototype.getOptions=function(b){return b=a.extend({},this.getDefaults(),this.$element.data(),b),b.delay&&"number"==typeof b.delay&&(b.delay={show:b.delay,hide:b.delay}),b},c.prototype.getDelegateOptions=function(){var b={},c=this.getDefaults();return this._options&&a.each(this._options,function(a,d){c[a]!=d&&(b[a]=d)}),b},c.prototype.enter=function(b){var c=b instanceof this.constructor?b:a(b.currentTarget).data("bs."+this.type);return c||(c=new this.constructor(b.currentTarget,this.getDelegateOptions()),a(b.currentTarget).data("bs."+this.type,c)),b instanceof a.Event&&(c.inState["focusin"==b.type?"focus":"hover"]=!0),c.tip().hasClass("in")||"in"==c.hoverState?void(c.hoverState="in"):(clearTimeout(c.timeout),c.hoverState="in",c.options.delay&&c.options.delay.show?void(c.timeout=setTimeout(function(){"in"==c.hoverState&&c.show()},c.options.delay.show)):c.show())},c.prototype.isInStateTrue=function(){for(var a in this.inState)if(this.inState[a])return!0;return!1},c.prototype.leave=function(b){var c=b instanceof this.constructor?b:a(b.currentTarget).data("bs."+this.type);if(c||(c=new this.constructor(b.currentTarget,this.getDelegateOptions()),a(b.currentTarget).data("bs."+this.type,c)),b instanceof a.Event&&(c.inState["focusout"==b.type?"focus":"hover"]=!1),!c.isInStateTrue())return clearTimeout(c.timeout),c.hoverState="out",c.options.delay&&c.options.delay.hide?void(c.timeout=setTimeout(function(){"out"==c.hoverState&&c.hide()},c.options.delay.hide)):c.hide()},c.prototype.show=function(){var b=a.Event("show.bs."+this.type);if(this.hasContent()&&this.enabled){this.$element.trigger(b);var d=a.contains(this.$element[0].ownerDocument.documentElement,this.$element[0]);if(b.isDefaultPrevented()||!d)return;var e=this,f=this.tip(),g=this.getUID(this.type);this.setContent(),f.attr("id",g),this.$element.attr("aria-describedby",g),this.options.animation&&f.addClass("fade");var h="function"==typeof this.options.placement?this.options.placement.call(this,f[0],this.$element[0]):this.options.placement,i=/\s?auto?\s?/i,j=i.test(h);j&&(h=h.replace(i,"")||"top"),f.detach().css({top:0,left:0,display:"block"}).addClass(h).data("bs."+this.type,this),this.options.container?f.appendTo(this.options.container):f.insertAfter(this.$element),this.$element.trigger("inserted.bs."+this.type);var k=this.getPosition(),l=f[0].offsetWidth,m=f[0].offsetHeight;if(j){var n=h,o=this.getPosition(this.$viewport);h="bottom"==h&&k.bottom+m>o.bottom?"top":"top"==h&&k.top-m
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