addon-sdk/source/lib/sdk/net/url.js@6474c204b198 (annotated)
addon-sdk/source/lib/sdk/net/url.js
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 2 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 3 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 4 | |
| michael@0 | 5 | "use strict"; |
| michael@0 | 6 | |
| michael@0 | 7 | module.metadata = { |
| michael@0 | 8 | "stability": "experimental" |
| michael@0 | 9 | }; |
| michael@0 | 10 | |
| michael@0 | 11 | const { Cu, components } = require("chrome"); |
| michael@0 | 12 | const { defer } = require("../core/promise"); |
| michael@0 | 13 | const { merge } = require("../util/object"); |
| michael@0 | 14 | |
| michael@0 | 15 | const { NetUtil } = Cu.import("resource://gre/modules/NetUtil.jsm", {}); |
| michael@0 | 16 | |
| michael@0 | 17 | /** |
| michael@0 | 18 | * Reads a URI and returns a promise. |
| michael@0 | 19 | * |
| michael@0 | 20 | * @param uri {string} The URI to read |
| michael@0 | 21 | * @param [options] {object} This parameter can have any or all of the following |
| michael@0 | 22 | * fields: `charset`. By default the `charset` is set to 'UTF-8'. |
| michael@0 | 23 | * |
| michael@0 | 24 | * @returns {promise} The promise that will be resolved with the content of the |
| michael@0 | 25 | * URL given. |
| michael@0 | 26 | * |
| michael@0 | 27 | * @example |
| michael@0 | 28 | * let promise = readURI('resource://gre/modules/NetUtil.jsm', { |
| michael@0 | 29 | * charset: 'US-ASCII' |
| michael@0 | 30 | * }); |
| michael@0 | 31 | */ |
| michael@0 | 32 | function readURI(uri, options) { |
| michael@0 | 33 | options = options || {}; |
| michael@0 | 34 | let charset = options.charset || 'UTF-8'; |
| michael@0 | 35 | |
| michael@0 | 36 | let channel = NetUtil.newChannel(uri, charset, null); |
| michael@0 | 37 | |
| michael@0 | 38 | let { promise, resolve, reject } = defer(); |
| michael@0 | 39 | |
| michael@0 | 40 | try { |
| michael@0 | 41 | NetUtil.asyncFetch(channel, function (stream, result) { |
| michael@0 | 42 | if (components.isSuccessCode(result)) { |
| michael@0 | 43 | let count = stream.available(); |
| michael@0 | 44 | let data = NetUtil.readInputStreamToString(stream, count, { charset : charset }); |
| michael@0 | 45 | |
| michael@0 | 46 | resolve(data); |
| michael@0 | 47 | } else { |
| michael@0 | 48 | reject("Failed to read: '" + uri + "' (Error Code: " + result + ")"); |
| michael@0 | 49 | } |
| michael@0 | 50 | }); |
| michael@0 | 51 | } |
| michael@0 | 52 | catch (e) { |
| michael@0 | 53 | reject("Failed to read: '" + uri + "' (Error: " + e.message + ")"); |
| michael@0 | 54 | } |
| michael@0 | 55 | |
| michael@0 | 56 | return promise; |
| michael@0 | 57 | } |
| michael@0 | 58 | |
| michael@0 | 59 | exports.readURI = readURI; |
| michael@0 | 60 | |
| michael@0 | 61 | /** |
| michael@0 | 62 | * Reads a URI synchronously. |
| michael@0 | 63 | * This function is intentionally undocumented to favorites the `readURI` usage. |
| michael@0 | 64 | * |
| michael@0 | 65 | * @param uri {string} The URI to read |
| michael@0 | 66 | * @param [charset] {string} The character set to use when read the content of |
| michael@0 | 67 | * the `uri` given. By default is set to 'UTF-8'. |
| michael@0 | 68 | * |
| michael@0 | 69 | * @returns {string} The content of the URI given. |
| michael@0 | 70 | * |
| michael@0 | 71 | * @example |
| michael@0 | 72 | * let data = readURISync('resource://gre/modules/NetUtil.jsm'); |
| michael@0 | 73 | */ |
| michael@0 | 74 | function readURISync(uri, charset) { |
| michael@0 | 75 | charset = typeof charset === "string" ? charset : "UTF-8"; |
| michael@0 | 76 | |
| michael@0 | 77 | let channel = NetUtil.newChannel(uri, charset, null); |
| michael@0 | 78 | let stream = channel.open(); |
| michael@0 | 79 | |
| michael@0 | 80 | let count = stream.available(); |
| michael@0 | 81 | let data = NetUtil.readInputStreamToString(stream, count, { charset : charset }); |
| michael@0 | 82 | |
| michael@0 | 83 | stream.close(); |
| michael@0 | 84 | |
| michael@0 | 85 | return data; |
| michael@0 | 86 | } |
| michael@0 | 87 | |
| michael@0 | 88 | exports.readURISync = readURISync; |
