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(function (window) {
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var factory = function (Util, Crypto, Nacl) {
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var Hash = window.CryptPad_Hash = {};
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var uint8ArrayToHex = Util.uint8ArrayToHex;
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var hexToBase64 = Util.hexToBase64;
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var base64ToHex = Util.base64ToHex;
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Hash.encodeBase64 = Nacl.util.encodeBase64;
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Hash.decodeBase64 = Nacl.util.decodeBase64;
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// This implementation must match that on the server
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// it's used for a checksum
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Hash.hashChannelList = function (list) {
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return Nacl.util.encodeBase64(Nacl.hash(Nacl.util
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.decodeUTF8(JSON.stringify(list))));
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};
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var getEditHashFromKeys = Hash.getEditHashFromKeys = function (secret) {
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var version = secret.version;
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var data = secret.keys;
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if (version === 0) {
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return secret.channel + secret.key;
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}
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if (version === 1) {
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if (!data.editKeyStr) { return; }
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return '/1/edit/' + hexToBase64(secret.channel) +
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'/' + Crypto.b64RemoveSlashes(data.editKeyStr) + '/';
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}
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if (version === 2) {
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if (!data.editKeyStr) { return; }
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var pass = secret.password ? 'p/' : '';
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return '/2/' + secret.type + '/edit/' + Crypto.b64RemoveSlashes(data.editKeyStr) + '/' + pass;
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}
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};
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var getViewHashFromKeys = Hash.getViewHashFromKeys = function (secret) {
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var version = secret.version;
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var data = secret.keys;
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if (version === 0) { return; }
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if (version === 1) {
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if (!data.viewKeyStr) { return; }
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return '/1/view/' + hexToBase64(secret.channel) +
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'/'+Crypto.b64RemoveSlashes(data.viewKeyStr)+'/';
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}
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if (version === 2) {
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if (!data.viewKeyStr) { return; }
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var pass = secret.password ? 'p/' : '';
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return '/2/' + secret.type + '/view/' + Crypto.b64RemoveSlashes(data.viewKeyStr) + '/' + pass;
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}
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};
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var getFileHashFromKeys = Hash.getFileHashFromKeys = function (secret) {
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var version = secret.version;
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var data = secret.keys;
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if (version === 0) { return; }
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if (version === 1) {
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return '/1/' + hexToBase64(secret.channel) + '/' +
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Crypto.b64RemoveSlashes(data.fileKeyStr) + '/';
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}
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if (version === 2) {
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if (!data.fileKeyStr) { return; }
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var pass = secret.password ? 'p/' : '';
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return '/2/' + secret.type + '/' + Crypto.b64RemoveSlashes(data.fileKeyStr) + '/' + pass;
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}
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};
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Hash.getUserHrefFromKeys = function (origin, username, pubkey) {
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return origin + '/user/#/1/' + username + '/' + pubkey.replace(/\//g, '-');
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};
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var fixDuplicateSlashes = function (s) {
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return s.replace(/\/+/g, '/');
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};
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Hash.ephemeralChannelLength = 34;
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Hash.createChannelId = function (ephemeral) {
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var id = uint8ArrayToHex(Crypto.Nacl.randomBytes(ephemeral? 17: 16));
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if ([32, 34].indexOf(id.length) === -1 || /[^a-f0-9]/.test(id)) {
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throw new Error('channel ids must consist of 32 hex characters');
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}
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return id;
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};
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/* Given a base64-encoded public key, deterministically derive a channel id
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Used for support mailboxes
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*/
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Hash.getChannelIdFromKey = function (publicKey) {
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if (!publicKey) { return; }
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return uint8ArrayToHex(Hash.decodeBase64(publicKey).subarray(0,16));
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};
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/* Given a base64-encoded asymmetric private key
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derive the corresponding public key
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*/
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Hash.getBoxPublicFromSecret = function (priv) {
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if (!priv) { return; }
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var u8_priv = Hash.decodeBase64(priv);
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var pair = Nacl.box.keyPair.fromSecretKey(u8_priv);
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return Hash.encodeBase64(pair.publicKey);
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};
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/* Given a base64-encoded private key and public key
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check that the keys are part of a valid keypair
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*/
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Hash.checkBoxKeyPair = function (priv, pub) {
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if (!pub || !priv) { return false; }
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var u8_priv = Hash.decodeBase64(priv);
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var pair = Nacl.box.keyPair.fromSecretKey(u8_priv);
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return pub === Hash.encodeBase64(pair.publicKey);
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};
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Hash.createRandomHash = function (type, password) {
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var cryptor;
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if (type === 'file') {
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cryptor = Crypto.createFileCryptor2(void 0, password);
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return getFileHashFromKeys({
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password: Boolean(password),
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version: 2,
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type: type,
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keys: cryptor
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});
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}
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cryptor = Crypto.createEditCryptor2(void 0, void 0, password);
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return getEditHashFromKeys({
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password: Boolean(password),
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version: 2,
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type: type,
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keys: cryptor
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});
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};
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/*
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Version 0
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/pad/#67b8385b07352be53e40746d2be6ccd7XAYSuJYYqa9NfmInyHci7LNy
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Version 1
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/code/#/1/edit/3Ujt4F2Sjnjbis6CoYWpoQ/usn4+9CqVja8Q7RZOGTfRgqI
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*/
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var parseTypeHash = Hash.parseTypeHash = function (type, hash) {
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if (!hash) { return; }
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var options;
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var parsed = {};
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var hashArr = fixDuplicateSlashes(hash).split('/');
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if (['media', 'file', 'user', 'invite'].indexOf(type) === -1) {
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parsed.type = 'pad';
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parsed.getHash = function () { return hash; };
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if (hash.slice(0,1) !== '/' && hash.length >= 56) { // Version 0
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// Old hash
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parsed.channel = hash.slice(0, 32);
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parsed.key = hash.slice(32, 56);
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parsed.version = 0;
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return parsed;
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}
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if (hashArr[1] && hashArr[1] === '1') { // Version 1
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parsed.version = 1;
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parsed.mode = hashArr[2];
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parsed.channel = hashArr[3];
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parsed.key = Crypto.b64AddSlashes(hashArr[4]);
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options = hashArr.slice(5);
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parsed.present = options.indexOf('present') !== -1;
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parsed.embed = options.indexOf('embed') !== -1;
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parsed.getHash = function (opts) {
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var hash = hashArr.slice(0, 5).join('/') + '/';
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if (opts.embed) { hash += 'embed/'; }
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if (opts.present) { hash += 'present/'; }
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return hash;
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};
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return parsed;
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}
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if (hashArr[1] && hashArr[1] === '2') { // Version 2
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parsed.version = 2;
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parsed.app = hashArr[2];
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parsed.mode = hashArr[3];
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parsed.key = hashArr[4];
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options = hashArr.slice(5);
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parsed.password = options.indexOf('p') !== -1;
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parsed.present = options.indexOf('present') !== -1;
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parsed.embed = options.indexOf('embed') !== -1;
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parsed.getHash = function (opts) {
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var hash = hashArr.slice(0, 5).join('/') + '/';
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if (parsed.password) { hash += 'p/'; }
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if (opts.embed) { hash += 'embed/'; }
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if (opts.present) { hash += 'present/'; }
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return hash;
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};
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return parsed;
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}
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return parsed;
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}
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parsed.getHash = function () { return hashArr.join('/'); };
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if (['media', 'file'].indexOf(type) !== -1) {
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parsed.type = 'file';
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if (hashArr[1] && hashArr[1] === '1') {
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parsed.version = 1;
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parsed.channel = hashArr[2].replace(/-/g, '/');
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parsed.key = hashArr[3].replace(/-/g, '/');
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return parsed;
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}
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if (hashArr[1] && hashArr[1] === '2') { // Version 2
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parsed.version = 2;
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parsed.app = hashArr[2];
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parsed.key = hashArr[3];
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options = hashArr.slice(4);
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parsed.password = options.indexOf('p') !== -1;
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parsed.present = options.indexOf('present') !== -1;
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parsed.embed = options.indexOf('embed') !== -1;
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parsed.getHash = function (opts) {
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var hash = hashArr.slice(0, 4).join('/') + '/';
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if (parsed.password) { hash += 'p/'; }
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if (opts.embed) { hash += 'embed/'; }
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if (opts.present) { hash += 'present/'; }
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return hash;
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};
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return parsed;
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}
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return parsed;
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}
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if (['user'].indexOf(type) !== -1) {
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parsed.type = 'user';
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if (hashArr[1] && hashArr[1] === '1') {
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parsed.version = 1;
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parsed.user = hashArr[2];
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parsed.pubkey = hashArr[3].replace(/-/g, '/');
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return parsed;
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}
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return parsed;
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}
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if (['invite'].indexOf(type) !== -1) {
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parsed.type = 'invite';
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if (hashArr[1] && hashArr[1] === '1') {
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parsed.version = 1;
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parsed.channel = hashArr[2];
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parsed.pubkey = hashArr[3].replace(/-/g, '/');
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return parsed;
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}
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return parsed;
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}
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return;
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};
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var parsePadUrl = Hash.parsePadUrl = function (href) {
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var patt = /^https*:\/\/([^\/]*)\/(.*?)\//i;
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var ret = {};
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if (!href) { return ret; }
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if (href.slice(-1) !== '/' && href.slice(-1) !== '#') { href += '/'; }
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href = href.replace(/\/\?[^#]+#/, '/#');
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var idx;
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ret.getUrl = function (options) {
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options = options || {};
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var url = '/';
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if (!ret.type) { return url; }
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url += ret.type + '/';
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if (!ret.hashData) { return url; }
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if (ret.hashData.type !== 'pad') { return url + '#' + ret.hash; }
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if (ret.hashData.version === 0) { return url + '#' + ret.hash; }
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var hash = ret.hashData.getHash(options);
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url += '#' + hash;
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return url;
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};
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if (!/^https*:\/\//.test(href)) {
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idx = href.indexOf('/#');
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ret.type = href.slice(1, idx);
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if (idx === -1) { return ret; }
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ret.hash = href.slice(idx + 2);
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ret.hashData = parseTypeHash(ret.type, ret.hash);
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return ret;
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}
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href.replace(patt, function (a, domain, type) {
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ret.domain = domain;
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ret.type = type;
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return '';
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});
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idx = href.indexOf('/#');
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if (idx === -1) { return ret; }
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ret.hash = href.slice(idx + 2);
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ret.hashData = parseTypeHash(ret.type, ret.hash);
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return ret;
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};
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Hash.getRelativeHref = function (href) {
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if (!href) { return; }
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if (href.indexOf('#') === -1) { return; }
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var parsed = parsePadUrl(href);
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return '/' + parsed.type + '/#' + parsed.hash;
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};
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/*
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* Returns all needed keys for a realtime channel
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* - no argument: use the URL hash or create one if it doesn't exist
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* - secretHash provided: use secretHash to find the keys
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*/
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Hash.getSecrets = function (type, secretHash, password) {
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var secret = {};
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var generate = function () {
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secret.keys = Crypto.createEditCryptor2(void 0, void 0, password);
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secret.channel = base64ToHex(secret.keys.chanId);
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secret.version = 2;
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secret.type = type;
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};
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if (!secretHash && !window.location.hash) { //!/#/.test(window.location.href)) {
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generate();
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return secret;
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} else {
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var parsed;
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var hash;
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if (secretHash) {
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if (!type) { throw new Error("getSecrets with a hash requires a type parameter"); }
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parsed = parseTypeHash(type, secretHash);
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hash = secretHash;
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} else {
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var pHref = parsePadUrl(window.location.href);
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parsed = pHref.hashData;
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hash = pHref.hash;
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}
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//var hash = secretHash || window.location.hash.slice(1);
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if (hash.length === 0) {
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generate();
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return secret;
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}
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// old hash system : #{hexChanKey}{cryptKey}
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// new hash system : #/{hashVersion}/{b64ChanKey}/{cryptKey}
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if (parsed.version === 0) {
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// Old hash
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secret.channel = parsed.channel;
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secret.key = parsed.key;
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secret.version = 0;
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} else if (parsed.version === 1) {
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// New hash
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secret.version = 1;
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if (parsed.type === "pad") {
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secret.channel = base64ToHex(parsed.channel);
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if (parsed.mode === 'edit') {
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secret.keys = Crypto.createEditCryptor(parsed.key);
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secret.key = secret.keys.editKeyStr;
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if (secret.channel.length !== 32 || secret.key.length !== 24) {
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throw new Error("The channel key and/or the encryption key is invalid");
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}
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}
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else if (parsed.mode === 'view') {
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secret.keys = Crypto.createViewCryptor(parsed.key);
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if (secret.channel.length !== 32) {
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throw new Error("The channel key is invalid");
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}
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}
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} else if (parsed.type === "file") {
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secret.channel = base64ToHex(parsed.channel);
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secret.keys = {
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fileKeyStr: parsed.key,
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cryptKey: Nacl.util.decodeBase64(parsed.key)
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};
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} else if (parsed.type === "user") {
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throw new Error("User hashes can't be opened (yet)");
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}
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} else if (parsed.version === 2) {
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// New hash
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secret.version = 2;
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secret.type = type;
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secret.password = password;
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if (parsed.type === "pad") {
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if (parsed.mode === 'edit') {
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secret.keys = Crypto.createEditCryptor2(parsed.key, void 0, password);
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secret.channel = base64ToHex(secret.keys.chanId);
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secret.key = secret.keys.editKeyStr;
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if (secret.channel.length !== 32 || secret.key.length !== 24) {
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throw new Error("The channel key and/or the encryption key is invalid");
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}
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}
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else if (parsed.mode === 'view') {
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secret.keys = Crypto.createViewCryptor2(parsed.key, password);
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secret.channel = base64ToHex(secret.keys.chanId);
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if (secret.channel.length !== 32) {
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throw new Error("The channel key is invalid");
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}
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}
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} else if (parsed.type === "file") {
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secret.keys = Crypto.createFileCryptor2(parsed.key, password);
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secret.channel = base64ToHex(secret.keys.chanId);
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secret.key = secret.keys.fileKeyStr;
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if (secret.channel.length !== 48 || secret.key.length !== 24) {
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throw new Error("The channel key and/or the encryption key is invalid");
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}
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} else if (parsed.type === "user") {
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throw new Error("User hashes can't be opened (yet)");
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}
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}
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}
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return secret;
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};
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Hash.getHashes = function (secret) {
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var hashes = {};
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secret = JSON.parse(JSON.stringify(secret));
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if (!secret.keys && !secret.key) {
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console.error('e');
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return hashes;
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} else if (!secret.keys) {
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secret.keys = {};
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}
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if (secret.keys.editKeyStr || (secret.version === 0 && secret.key)) {
|
|
|
hashes.editHash = getEditHashFromKeys(secret);
|
|
|
}
|
|
|
if (secret.keys.viewKeyStr) {
|
|
|
hashes.viewHash = getViewHashFromKeys(secret);
|
|
|
}
|
|
|
if (secret.keys.fileKeyStr) {
|
|
|
hashes.fileHash = getFileHashFromKeys(secret);
|
|
|
}
|
|
|
return hashes;
|
|
|
};
|
|
|
|
|
|
// STORAGE
|
|
|
Hash.findWeaker = function (href, channel, recents) {
|
|
|
var parsed = parsePadUrl(href);
|
|
|
if (!parsed.hash) { return false; }
|
|
|
// We can't have a weaker hash if we're already in view mode
|
|
|
if (parsed.hashData && parsed.hashData.mode === 'view') { return; }
|
|
|
var weaker;
|
|
|
Object.keys(recents).some(function (id) {
|
|
|
var pad = recents[id];
|
|
|
if (pad.href || !pad.roHref) {
|
|
|
// This pad has an edit link, so it can't be weaker
|
|
|
return;
|
|
|
}
|
|
|
var p = parsePadUrl(pad.roHref);
|
|
|
if (p.type !== parsed.type) { return; } // Not the same type
|
|
|
if (p.hash === parsed.hash) { return; } // Same hash, not stronger
|
|
|
if (channel !== pad.channel) { return; } // Not the same channel
|
|
|
|
|
|
var pHash = p.hashData;
|
|
|
var parsedHash = parsed.hashData;
|
|
|
if (!parsedHash || !pHash) { return; }
|
|
|
|
|
|
// We don't have stronger/weaker versions of files or users
|
|
|
if (pHash.type !== 'pad' && parsedHash.type !== 'pad') { return; }
|
|
|
|
|
|
if (pHash.version !== parsedHash.version) { return; }
|
|
|
if (pHash.mode === 'view' && parsedHash.mode === 'edit') {
|
|
|
weaker = pad;
|
|
|
return true;
|
|
|
}
|
|
|
return;
|
|
|
});
|
|
|
return weaker;
|
|
|
};
|
|
|
Hash.findStronger = function (href, channel, recents) {
|
|
|
var parsed = parsePadUrl(href);
|
|
|
if (!parsed.hash) { return false; }
|
|
|
var parsedHash = parsed.hashData;
|
|
|
|
|
|
// We can't have a stronger hash if we're already in edit mode
|
|
|
if (!parsedHash || parsedHash.mode === 'edit') { return; }
|
|
|
|
|
|
// We don't have stronger/weaker versions of files or users
|
|
|
if (parsedHash.type !== 'pad') { return; }
|
|
|
|
|
|
var stronger;
|
|
|
Object.keys(recents).some(function (id) {
|
|
|
var pad = recents[id];
|
|
|
|
|
|
// Not the same channel? reject
|
|
|
if (channel !== pad.channel) { return; }
|
|
|
|
|
|
// If this pad doesn't have an edit link, it can't be stronger
|
|
|
if (!pad.href || !pad.roHref) { return; }
|
|
|
|
|
|
// This is a pad with an EDIT href and using the same channel as our target
|
|
|
// ==> it is stronger
|
|
|
stronger = pad;
|
|
|
return true;
|
|
|
});
|
|
|
return stronger;
|
|
|
};
|
|
|
|
|
|
Hash.hrefToHexChannelId = function (href, password) {
|
|
|
var parsed = Hash.parsePadUrl(href);
|
|
|
if (!parsed || !parsed.hash) { return; }
|
|
|
var secret = Hash.getSecrets(parsed.type, parsed.hash, password);
|
|
|
return secret.channel;
|
|
|
};
|
|
|
|
|
|
Hash.getBlobPathFromHex = function (id) {
|
|
|
return '/blob/' + id.slice(0,2) + '/' + id;
|
|
|
};
|
|
|
|
|
|
Hash.serializeHash = function (hash) {
|
|
|
if (hash && hash.slice(-1) !== "/") { hash += "/"; }
|
|
|
return hash;
|
|
|
};
|
|
|
|
|
|
Hash.createInviteUrl = function (curvePublic, channel) {
|
|
|
channel = channel || Hash.createChannelId();
|
|
|
return window.location.origin + '/invite/#/1/' + channel +
|
|
|
'/' + curvePublic.replace(/\//g, '-') + '/';
|
|
|
};
|
|
|
|
|
|
Hash.isValidHref = function (href) {
|
|
|
// Non-empty href?
|
|
|
if (!href) { return; }
|
|
|
var parsed = Hash.parsePadUrl(href);
|
|
|
// Can be parsed?
|
|
|
if (!parsed) { return; }
|
|
|
// Link to a CryptPad app?
|
|
|
if (!parsed.type) { return; }
|
|
|
// Valid hash?
|
|
|
if (parsed.hash) {
|
|
|
if (!parsed.hashData) { return; }
|
|
|
// Version should be a number
|
|
|
if (typeof(parsed.hashData.version) === "undefined") { return; }
|
|
|
// pads and files should have a base64 (or hex) key
|
|
|
if (parsed.hashData.type === 'pad' || parsed.hashData.type === 'file') {
|
|
|
if (!parsed.hashData.key) { return; }
|
|
|
if (!/^[a-zA-Z0-9+-/=]+$/.test(parsed.hashData.key)) { return; }
|
|
|
}
|
|
|
}
|
|
|
return true;
|
|
|
};
|
|
|
|
|
|
return Hash;
|
|
|
};
|
|
|
|
|
|
if (typeof(module) !== 'undefined' && module.exports) {
|
|
|
module.exports = factory(require("./common-util"), require("chainpad-crypto"), require("tweetnacl/nacl-fast"));
|
|
|
} else if ((typeof(define) !== 'undefined' && define !== null) && (define.amd !== null)) {
|
|
|
define([
|
|
|
'/common/common-util.js',
|
|
|
'/bower_components/chainpad-crypto/crypto.js',
|
|
|
'/bower_components/tweetnacl/nacl-fast.min.js'
|
|
|
], function (Util, Crypto) {
|
|
|
return factory(Util, Crypto, window.nacl);
|
|
|
});
|
|
|
} else {
|
|
|
// unsupported initialization
|
|
|
}
|
|
|
}(typeof(window) !== 'undefined'? window : {}));
|