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			459 lines
		
	
	
		
			17 KiB
		
	
	
	
		
			JavaScript
		
	
			
		
		
	
	
			459 lines
		
	
	
		
			17 KiB
		
	
	
	
		
			JavaScript
		
	
| /*
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|  * vim: ts=4:sw=4:expandtab
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|  */
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| 
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| var TextSecureServer = (function() {
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|     'use strict';
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| 
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|     function validateResponse(response, schema) {
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|         try {
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|             for (var i in schema) {
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|                 switch (schema[i]) {
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|                     case 'object':
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|                     case 'string':
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|                     case 'number':
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|                         if (typeof response[i] !== schema[i]) {
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|                             return false;
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|                         }
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|                         break;
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|                 }
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|             }
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|         } catch(ex) {
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|             return false;
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|         }
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|         return true;
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|     }
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| 
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|     function createSocket(url) {
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|       var proxyUrl = window.config.proxyUrl;
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|       var requestOptions;
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|       if (proxyUrl) {
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|         requestOptions = {
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|             ca: window.config.certificateAuthorities,
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|             agent: new ProxyAgent(proxyUrl),
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|         };
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|       } else {
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|         requestOptions = {
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|             ca: window.config.certificateAuthorities,
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|         };
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|       }
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| 
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|       return new nodeWebSocket(url, null, null, null, requestOptions);
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|     }
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| 
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|     window.setImmediate = nodeSetImmediate;
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| 
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|     function promise_ajax(url, options) {
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|       return new Promise(function (resolve, reject) {
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|         if (!url) {
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|             url = options.host +  '/' + options.path;
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|         }
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|         console.log(options.type, url);
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|         var timeout = typeof options.timeout !== 'undefined' ? options.timeout : 10000;
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| 
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|         var proxyUrl = window.config.proxyUrl;
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|         var agent;
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|         if (proxyUrl) {
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|             agent = new ProxyAgent(proxyUrl);
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|         }
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| 
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|         var fetchOptions = {
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|           method: options.type,
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|           body: options.data || null,
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|           headers: { 'X-Signal-Agent': 'OWD' },
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|           agent: agent,
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|           ca: options.certificateAuthorities,
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|           timeout: timeout,
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|         };
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| 
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|         if (fetchOptions.body instanceof ArrayBuffer) {
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|           // node-fetch doesn't support ArrayBuffer, only node Buffer
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|           var contentLength = fetchOptions.body.byteLength;
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|           fetchOptions.body = nodeBuffer.from(fetchOptions.body);
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| 
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|           // node-fetch doesn't set content-length like S3 requires
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|           fetchOptions.headers["Content-Length"] = contentLength;
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|         }
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| 
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|         if (options.user && options.password) {
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|           fetchOptions.headers["Authorization"] =
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|             "Basic " + btoa(getString(options.user) + ":" + getString(options.password));
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|         }
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|         if (options.contentType) {
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|           fetchOptions.headers["Content-Type"] = options.contentType;
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|         }
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|         window.nodeFetch(url, fetchOptions).then(function(response) {
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|           var resultPromise;
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|           if (options.responseType === 'json'
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|               && response.headers.get('Content-Type') === 'application/json') {
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|             resultPromise = response.json();
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|           } else if (options.responseType === 'arraybuffer') {
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|             resultPromise = response.buffer();
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|           } else {
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|             resultPromise = response.text();
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|           }
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|           return resultPromise.then(function(result) {
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|             if (options.responseType === 'arraybuffer') {
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|               result = result.buffer.slice(
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|                 result.byteOffset,
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|                 result.byteOffset + result.byteLength
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|               );
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|             }
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|             if (options.responseType === 'json') {
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|               if (options.validateResponse) {
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|                 if (!validateResponse(result, options.validateResponse)) {
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|                   console.log(options.type, url, response.status, 'Error');
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|                   reject(HTTPError(
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|                     'promise_ajax: invalid response',
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|                     response.status,
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|                     result,
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|                     options.stack
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|                   ));
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|                 }
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|               }
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|             }
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|             if (0 <= response.status && response.status < 400) {
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|               console.log(options.type, url, response.status, 'Success');
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|               resolve(result, response.status);
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|             } else {
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|               console.log(options.type, url, response.status, 'Error');
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|               reject(HTTPError(
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|                 'promise_ajax: error response',
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|                 response.status,
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|                 result,
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|                 options.stack
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|               ));
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|             }
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|           });
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|         }).catch(function(e) {
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|           console.log(options.type, url, 0, 'Error');
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|           var stack = e.stack + '\nInitial stack:\n' + options.stack;
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|           reject(HTTPError('promise_ajax catch', 0, e.toString(), stack));
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|         });
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|       });
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|     }
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| 
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|     function retry_ajax(url, options, limit, count) {
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|         count = count || 0;
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|         limit = limit || 3;
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|         count++;
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|         return promise_ajax(url, options).catch(function(e) {
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|             if (e.name === 'HTTPError' && e.code === -1 && count < limit) {
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|                 return new Promise(function(resolve) {
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|                     setTimeout(function() {
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|                         resolve(retry_ajax(url, options, limit, count));
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|                     }, 1000);
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|                 });
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|             } else {
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|                 throw e;
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|             }
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|         });
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|     }
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| 
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|     function ajax(url, options) {
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|         options.stack = new Error().stack; // just in case, save stack here.
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|         return retry_ajax(url, options);
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|     }
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| 
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|     function HTTPError(message, code, response, stack) {
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|         if (code > 999 || code < 100) {
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|             code = -1;
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|         }
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|         var e = new Error(message + '; code: ' + code);
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|         e.name     = 'HTTPError';
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|         e.code     = code;
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|         e.stack   += '\nOriginal stack:\n' + stack;
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|         if (response) {
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|             e.response = response;
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|         }
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|         return e;
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|     }
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| 
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|     var URL_CALLS = {
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|         accounts   : "v1/accounts",
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|         devices    : "v1/devices",
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|         keys       : "v2/keys",
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|         signed     : "v2/keys/signed",
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|         messages   : "v1/messages",
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|         attachment : "v1/attachments",
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|         profile    : "v1/profile"
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|     };
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| 
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|     function TextSecureServer(url, username, password, cdn_url) {
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|         if (typeof url !== 'string') {
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|             throw new Error('Invalid server url');
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|         }
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|         this.url = url;
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|         this.cdn_url = cdn_url;
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|         this.username = username;
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|         this.password = password;
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|     }
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| 
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|     TextSecureServer.prototype = {
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|         constructor: TextSecureServer,
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|         ajax: function(param) {
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|             if (!param.urlParameters) {
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|                 param.urlParameters = '';
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|             }
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|             return ajax(null, {
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|                     host         : this.url,
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|                     path         : URL_CALLS[param.call] + param.urlParameters,
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|                     type         : param.httpType,
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|                     data         : param.jsonData && textsecure.utils.jsonThing(param.jsonData),
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|                     contentType  : 'application/json; charset=utf-8',
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|                     responseType : param.responseType,
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|                     user         : this.username,
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|                     password     : this.password,
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|                     validateResponse: param.validateResponse,
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|                     certificateAuthorities: window.config.certificateAuthorities,
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|                     timeout      : param.timeout
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|             }).catch(function(e) {
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|                 var code = e.code;
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|                 if (code === 200) {
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|                     // happens sometimes when we get no response
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|                     // (TODO: Fix server to return 204? instead)
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|                     return null;
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|                 }
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|                 var message;
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|                 switch (code) {
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|                 case -1:
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|                     message = "Failed to connect to the server, please check your network connection.";
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|                     break;
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|                 case 413:
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|                     message = "Rate limit exceeded, please try again later.";
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|                     break;
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|                 case 403:
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|                     message = "Invalid code, please try again.";
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|                     break;
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|                 case 417:
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|                     // TODO: This shouldn't be a thing?, but its in the API doc?
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|                     message = "Number already registered.";
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|                     break;
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|                 case 401:
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|                     message = "Invalid authentication, most likely someone re-registered and invalidated our registration.";
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|                     break;
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|                 case 404:
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|                     message = "Number is not registered.";
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|                     break;
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|                 default:
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|                     message = "The server rejected our query, please file a bug report.";
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|                 }
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|                 e.message = message
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|                 throw e;
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|             });
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|         },
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|         getProfile: function(number) {
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|             return this.ajax({
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|                 call                : 'profile',
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|                 httpType            : 'GET',
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|                 urlParameters       : '/' + number,
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|                 responseType        : 'json',
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|             });
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|         },
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|         getAvatar: function(path) {
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|             return ajax(this.cdn_url + '/' + path, {
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|                 type        : "GET",
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|                 responseType: "arraybuffer",
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|                 contentType : "application/octet-stream",
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|                 certificateAuthorities: window.config.certificateAuthorities,
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|                 timeout: 0
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|             });
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|         },
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|         requestVerificationSMS: function(number) {
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|             return this.ajax({
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|                 call                : 'accounts',
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|                 httpType            : 'GET',
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|                 urlParameters       : '/sms/code/' + number,
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|             });
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|         },
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|         requestVerificationVoice: function(number) {
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|             return this.ajax({
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|                 call                : 'accounts',
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|                 httpType            : 'GET',
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|                 urlParameters       : '/voice/code/' + number,
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|             });
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|         },
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|         confirmCode: function(number, code, password, signaling_key, registrationId, deviceName) {
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|             var jsonData = {
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|                 signalingKey    : btoa(getString(signaling_key)),
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|                 supportsSms     : false,
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|                 fetchesMessages : true,
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|                 registrationId  : registrationId,
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|             };
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| 
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|             var call, urlPrefix, schema, responseType;
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|             if (deviceName) {
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|                 jsonData.name = deviceName;
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|                 call = 'devices';
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|                 urlPrefix = '/';
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|                 schema = { deviceId: 'number' };
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|                 responseType = 'json'
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|             } else {
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|                 call = 'accounts';
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|                 urlPrefix = '/code/';
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|             }
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| 
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|             this.username = number;
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|             this.password = password;
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|             return this.ajax({
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|                 call                : call,
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|                 httpType            : 'PUT',
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|                 urlParameters       : urlPrefix + code,
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|                 jsonData            : jsonData,
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|                 responseType        : responseType,
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|                 validateResponse    : schema
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|             });
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|         },
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|         getDevices: function(number) {
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|             return this.ajax({
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|                 call         : 'devices',
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|                 httpType     : 'GET',
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|             });
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|         },
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|         registerKeys: function(genKeys) {
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|             var keys = {};
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|             keys.identityKey = btoa(getString(genKeys.identityKey));
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|             keys.signedPreKey = {
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|                 keyId: genKeys.signedPreKey.keyId,
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|                 publicKey: btoa(getString(genKeys.signedPreKey.publicKey)),
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|                 signature: btoa(getString(genKeys.signedPreKey.signature))
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|             };
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| 
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|             keys.preKeys = [];
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|             var j = 0;
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|             for (var i in genKeys.preKeys) {
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|                 keys.preKeys[j++] = {
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|                     keyId: genKeys.preKeys[i].keyId,
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|                     publicKey: btoa(getString(genKeys.preKeys[i].publicKey))
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|                 };
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|             }
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| 
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|             // This is just to make the server happy
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|             // (v2 clients should choke on publicKey)
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|             keys.lastResortKey = {keyId: 0x7fffFFFF, publicKey: btoa("42")};
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| 
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|             return this.ajax({
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|                 call                : 'keys',
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|                 httpType            : 'PUT',
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|                 jsonData            : keys,
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|             });
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|         },
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|         setSignedPreKey: function(signedPreKey) {
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|             return this.ajax({
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|                 call                : 'signed',
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|                 httpType            : 'PUT',
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|                 jsonData            : {
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|                     keyId: signedPreKey.keyId,
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|                     publicKey: btoa(getString(signedPreKey.publicKey)),
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|                     signature: btoa(getString(signedPreKey.signature))
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|                 }
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|             });
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|         },
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|         getMyKeys: function(number, deviceId) {
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|             return this.ajax({
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|                 call                : 'keys',
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|                 httpType            : 'GET',
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|                 responseType        : 'json',
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|                 validateResponse    : {count: 'number'}
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|             }).then(function(res) {
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|                 return res.count;
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|             });
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|         },
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|         getKeysForNumber: function(number, deviceId) {
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|             if (deviceId === undefined)
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|                 deviceId = "*";
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| 
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|             return this.ajax({
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|                 call                : 'keys',
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|                 httpType            : 'GET',
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|                 urlParameters       : "/" + number + "/" + deviceId,
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|                 responseType        : 'json',
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|                 validateResponse    : {identityKey: 'string', devices: 'object'}
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|             }).then(function(res) {
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|                 if (res.devices.constructor !== Array) {
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|                     throw new Error("Invalid response");
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|                 }
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|                 res.identityKey = StringView.base64ToBytes(res.identityKey);
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|                 res.devices.forEach(function(device) {
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|                     if ( !validateResponse(device, {signedPreKey: 'object'}) ||
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|                          !validateResponse(device.signedPreKey, {publicKey: 'string', signature: 'string'}) ) {
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|                         throw new Error("Invalid signedPreKey");
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|                     }
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|                     if ( device.preKey ) {
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|                         if ( !validateResponse(device, {preKey: 'object'}) ||
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|                              !validateResponse(device.preKey, {publicKey: 'string'})) {
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|                             throw new Error("Invalid preKey");
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|                         }
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|                         device.preKey.publicKey = StringView.base64ToBytes(device.preKey.publicKey);
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|                     }
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|                     device.signedPreKey.publicKey = StringView.base64ToBytes(device.signedPreKey.publicKey);
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|                     device.signedPreKey.signature = StringView.base64ToBytes(device.signedPreKey.signature);
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|                 });
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|                 return res;
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|             });
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|         },
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|         sendMessages: function(destination, messageArray, timestamp, silent) {
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|             var jsonData = { messages: messageArray, timestamp: timestamp};
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| 
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|             if (silent) {
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|               jsonData.silent = true;
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|             }
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| 
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|             return this.ajax({
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|                 call                : 'messages',
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|                 httpType            : 'PUT',
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|                 urlParameters       : '/' + destination,
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|                 jsonData            : jsonData,
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|                 responseType        : 'json',
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|             });
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|         },
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|         getAttachment: function(id) {
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|             return this.ajax({
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|                 call                : 'attachment',
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|                 httpType            : 'GET',
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|                 urlParameters       : '/' + id,
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|                 responseType        : 'json',
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|                 validateResponse    : {location: 'string'},
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|             }).then(function(response) {
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|                 return ajax(response.location, {
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|                     timeout     : 0,
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|                     type        : "GET",
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|                     responseType: "arraybuffer",
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|                     contentType : "application/octet-stream"
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|                 });
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|             }.bind(this));
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|         },
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|         putAttachment: function(encryptedBin) {
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|             return this.ajax({
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|                 call         : 'attachment',
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|                 httpType     : 'GET',
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|                 responseType : 'json',
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|             }).then(function(response) {
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|                 return ajax(response.location, {
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|                     timeout     : 0,
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|                     type        : "PUT",
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|                     contentType : "application/octet-stream",
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|                     data        : encryptedBin,
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|                     processData : false,
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|                 }).then(function() {
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|                     return response.idString;
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|                 }.bind(this));
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|             }.bind(this));
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|         },
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|         getMessageSocket: function() {
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|             console.log('opening message socket', this.url);
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|             return createSocket(this.url.replace('https://', 'wss://').replace('http://', 'ws://')
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|                     + '/v1/websocket/?login=' + encodeURIComponent(this.username)
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|                     + '&password=' + encodeURIComponent(this.password)
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|                     + '&agent=OWD');
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|         },
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|         getProvisioningSocket: function () {
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|             console.log('opening provisioning socket', this.url);
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|             return createSocket(this.url.replace('https://', 'wss://').replace('http://', 'ws://')
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|                     + '/v1/websocket/provisioning/?agent=OWD');
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|         }
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|     };
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| 
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|     return TextSecureServer;
 | |
| })();
 |