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| Original file line number | Diff line number | Diff line change |
|---|---|---|
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@@ -11,4 +11,7 @@ module.exports = { | |
| "env": { | ||
| "es6": true | ||
| }, | ||
| "parserOptions": { | ||
| "ecmaVersion": 8, | ||
| }, | ||
| }; | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,154 @@ | ||
| "use strict"; | ||
|
|
||
| const { classes: Cc, interfaces: Ci, utils: Cu } = Components; | ||
|
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| Cu.import("resource://gre/modules/XPCOMUtils.jsm"); | ||
| Cu.import("resource://gre/modules/Services.jsm"); | ||
|
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| this.EXPORTED_SYMBOLS = [ | ||
| "SiteDataManager" | ||
| ]; | ||
|
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| this.SiteDataManager = { | ||
|
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| _qms: Services.qms, | ||
|
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| _diskCache: Services.cache2.diskCacheStorage(Services.loadContextInfo.default, false), | ||
|
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| _appCache: Cc["@mozilla.org/network/application-cache-service;1"].getService(Ci.nsIApplicationCacheService), | ||
|
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| // A Map of sites using the persistent-storage API (have requested persistent-storage permission) | ||
| // Key is site's origin. | ||
| // Value is one object holding: | ||
| // - perm: persistent-storage permision; instance of nsIPermission | ||
| // - status: the permission granted/rejected status | ||
| // - quotaUsage: the usage of indexedDB and localStorage. | ||
| // - appCacheList: an array of app cache; instances of nsIApplicationCache | ||
| // - diskCacheList: an array. Each element is object holding metadata of http cache: | ||
| // - dataSize: that http cache size | ||
| // - idEnhance: the id extension of that http cache | ||
| _sites: new Map(), | ||
|
|
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| _updateQuotaPromise: null, | ||
|
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| _updateDiskCachePromise: null, | ||
|
|
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| _quotaUsageRequests: null, | ||
|
|
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| updateSites() { | ||
| // Clear old data and requests first | ||
| this._sites.clear(); | ||
| this._cancelQuotaUpdate(); | ||
|
|
||
| // Collect sites granted/rejected with the persistent-storage permission | ||
| let perm = null; | ||
| let status = null; | ||
| let e = Services.perms.enumerator; | ||
| while (e.hasMoreElements()) { | ||
| perm = e.getNext(); | ||
| status = Services.perms.testExactPermissionFromPrincipal(perm.principal, "persistent-storage"); | ||
| if (status === Ci.nsIPermissionManager.ALLOW_ACTION || | ||
| status === Ci.nsIPermissionManager.DENY_ACTION) { | ||
| this._sites.set(perm.principal.origin, { | ||
| perm: perm, | ||
| status: status, | ||
| quotaUsage: 0, | ||
| appCacheList: [], | ||
| diskCacheList: [] | ||
| }); | ||
| } | ||
| } | ||
|
|
||
| this._updateQuota(); | ||
| this._updateAppCache(); | ||
| this._updateDiskCache(); | ||
| }, | ||
|
|
||
| _updateQuota() { | ||
| this._quotaUsageRequests = []; | ||
| let promises = []; | ||
| for (let [key, site] of this._sites) { // eslint-disable-line no-unused-vars | ||
| promises.push(new Promise(resolve => { | ||
| let callback = { | ||
| onUsageResult: function(request) { | ||
| site.quotaUsage = request.usage; | ||
| resolve(); | ||
| } | ||
| }; | ||
| // XXX: The work of integrating localStorage into Quota Manager is in progress. | ||
| // After the bug 742822 and 1286798 landed, localStorage usage will be included. | ||
| // So currently only get indexedDB usage. | ||
| this._quotaUsageRequests.push( | ||
| this._qms.getUsageForPrincipal(site.perm.principal, callback)); | ||
| })); | ||
| } | ||
| this._updateQuotaPromise = Promise.all(promises); | ||
| }, | ||
|
|
||
| _cancelQuotaUpdate() { | ||
| if (this._quotaUsageRequests) { | ||
| for (let request of this._quotaUsageRequests) { | ||
| request.cancel(); | ||
| } | ||
| this._quotaUsageRequests = null; | ||
| } | ||
| }, | ||
|
|
||
| _updateAppCache() { | ||
| let groups = this._appCache.getGroups(); | ||
| for (let [key, site] of this._sites) { // eslint-disable-line no-unused-vars | ||
| for (let group of groups) { | ||
| let uri = Services.io.newURI(group, null, null); | ||
| if (site.perm.matchesURI(uri, true)) { | ||
| let cache = this._appCache.getActiveCache(group); | ||
| site.appCacheList.push(cache); | ||
| } | ||
| } | ||
| } | ||
| }, | ||
|
|
||
| _updateDiskCache() { | ||
| this._updateDiskCachePromise = new Promise(resolve => { | ||
| if (this._sites.size) { | ||
| let sites = this._sites; | ||
| let visitor = { | ||
| onCacheEntryInfo: function(uri, idEnhance, dataSize) { | ||
| for (let [key, site] of sites) { // eslint-disable-line no-unused-vars | ||
| if (site.perm.matchesURI(uri, true)) { | ||
| site.diskCacheList.push({ | ||
| dataSize, | ||
| idEnhance | ||
| }); | ||
| break; | ||
| } | ||
| } | ||
| }, | ||
| onCacheEntryVisitCompleted: function() { | ||
| resolve(); | ||
| } | ||
| }; | ||
| this._diskCache.asyncVisitStorage(visitor, true); | ||
| } else { | ||
| resolve(); | ||
| } | ||
| }); | ||
| }, | ||
|
|
||
| getTotalUsage() { | ||
| return Promise.all([this._updateQuotaPromise, this._updateDiskCachePromise]) | ||
| .then(() => { | ||
| let usage = 0; | ||
| for (let [key, site] of this._sites) { // eslint-disable-line no-unused-vars | ||
| let cache = null; | ||
| for (cache of site.appCacheList) { | ||
| usage += cache.usage; | ||
| } | ||
| for (cache of site.diskCacheList) { | ||
| usage += cache.dataSize; | ||
| } | ||
| usage += site.quotaUsage; | ||
| } | ||
| return usage; | ||
| }); | ||
| }, | ||
| }; |
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