477 lines
13 KiB
JavaScript
477 lines
13 KiB
JavaScript
/*
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* Copyright © Jordan Lee, Dave Perrett and Malcolm Jarvis
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* This code is licensed under the GPL version 2.
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* For details, see http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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*
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* Class Torrent
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*/
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function Torrent(data)
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{
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this.initialize(data);
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}
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/***
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****
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**** Constants
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****
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***/
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// Torrent.fields.status
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Torrent._StatusStopped = 0;
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Torrent._StatusCheckWait = 1;
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Torrent._StatusCheck = 2;
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Torrent._StatusDownloadWait = 3;
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Torrent._StatusDownload = 4;
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Torrent._StatusSeedWait = 5;
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Torrent._StatusSeed = 6;
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// Torrent.fields.seedRatioMode
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Torrent._RatioUseGlobal = 0;
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Torrent._RatioUseLocal = 1;
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Torrent._RatioUnlimited = 2;
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// Torrent.fields.error
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Torrent._ErrNone = 0;
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Torrent._ErrTrackerWarning = 1;
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Torrent._ErrTrackerError = 2;
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Torrent._ErrLocalError = 3;
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// TrackerStats' announceState
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Torrent._TrackerInactive = 0;
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Torrent._TrackerWaiting = 1;
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Torrent._TrackerQueued = 2;
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Torrent._TrackerActive = 3;
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Torrent.Fields = { };
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// commonly used fields which only need to be loaded once,
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// either on startup or when a magnet finishes downloading its metadata
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// finishes downloading its metadata
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Torrent.Fields.Metadata = [
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'addedDate',
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'name',
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'totalSize'
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];
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// commonly used fields which need to be periodically refreshed
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Torrent.Fields.Stats = [
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'error',
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'errorString',
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'eta',
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'isFinished',
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'isStalled',
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'leftUntilDone',
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'metadataPercentComplete',
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'peersConnected',
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'peersGettingFromUs',
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'peersSendingToUs',
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'percentDone',
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'queuePosition',
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'rateDownload',
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'rateUpload',
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'recheckProgress',
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'seedRatioMode',
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'sizeWhenDone',
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'status',
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'trackers',
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'uploadedEver',
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'uploadRatio'
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];
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// fields used by the inspector which only need to be loaded once
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Torrent.Fields.InfoExtra = [
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'comment',
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'creator',
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'dateCreated',
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'files',
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'hashString',
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'isPrivate',
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'pieceCount',
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'pieceSize'
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];
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// fields used in the inspector which need to be periodically refreshed
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Torrent.Fields.StatsExtra = [
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'desiredAvailable',
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'downloadDir',
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'downloadedEver',
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'fileStats',
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'haveUnchecked',
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'haveValid',
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'peers',
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'seedRatioLimit',
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'trackerStats',
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'webseedsSendingToUs'
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];
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/***
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****
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**** Methods
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****
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***/
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Torrent.prototype =
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{
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initialize: function(data)
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{
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this.fields = {};
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this.refresh (data);
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},
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setField: function(o, name, value)
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{
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if (o[name] === value)
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return false;
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o[name] = value;
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return true;
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},
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// fields.files is an array of unions of RPC's "files" and "fileStats" objects.
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updateFiles: function(files)
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{
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var changed = false,
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myfiles = this.fields.files || [],
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keys = [ 'length', 'name', 'bytesCompleted', 'wanted', 'priority' ],
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i, f, j, key, myfile;
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for (i=0; f=files[i]; ++i) {
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myfile = myfiles[i] || {};
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for (j=0; key=keys[j]; ++j)
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if(key in f)
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changed |= this.setField(myfile,key,f[key]);
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myfiles[i] = myfile;
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}
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this.fields.files = myfiles;
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return changed;
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},
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collateTrackers: function(trackers)
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{
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var i, t, announces = [];
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for (i=0; t=trackers[i]; ++i)
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announces.push(t.announce.toLowerCase());
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return announces.join('\t');
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},
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refreshFields: function(data)
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{
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var key,
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changed = false;
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for (key in data) {
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switch (key) {
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case 'files':
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case 'fileStats': // merge files and fileStats together
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changed |= this.updateFiles(data[key]);
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break;
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case 'trackerStats': // 'trackerStats' is a superset of 'trackers'...
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changed |= this.setField(this.fields,'trackers',data[key]);
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break;
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case 'trackers': // ...so only save 'trackers' if we don't have it already
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if (!(key in this.fields))
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changed |= this.setField(this.fields,key,data[key]);
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break;
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default:
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changed |= this.setField(this.fields,key,data[key]);
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}
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}
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return changed;
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},
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refresh: function(data)
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{
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if (this.refreshFields(data))
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$(this).trigger('dataChanged', this);
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},
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/****
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*****
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****/
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// simple accessors
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getComment: function() { return this.fields.comment; },
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getCreator: function() { return this.fields.creator; },
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getDateAdded: function() { return this.fields.addedDate; },
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getDateCreated: function() { return this.fields.dateCreated; },
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getDesiredAvailable: function() { return this.fields.desiredAvailable; },
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getDownloadDir: function() { return this.fields.downloadDir; },
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getDownloadSpeed: function() { return this.fields.rateDownload; },
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getDownloadedEver: function() { return this.fields.downloadedEver; },
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getError: function() { return this.fields.error; },
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getErrorString: function() { return this.fields.errorString; },
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getETA: function() { return this.fields.eta; },
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getFile: function(i) { return this.fields.files[i]; },
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getFileCount: function() { return this.fields.files ? this.fields.files.length : 0; },
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getHashString: function() { return this.fields.hashString; },
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getHaveValid: function() { return this.fields.haveValid; },
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getHave: function() { return this.getHaveValid() + this.fields.haveUnchecked; },
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getId: function() { return this.fields.id; },
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getLeftUntilDone: function() { return this.fields.leftUntilDone; },
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getMetadataPercentComplete: function() { return this.fields.metadataPercentComplete; },
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getName: function() { return this.fields.name || 'Unknown'; },
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getPeers: function() { return this.fields.peers; },
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getPeersConnected: function() { return this.fields.peersConnected; },
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getPeersGettingFromUs: function() { return this.fields.peersGettingFromUs; },
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getPeersSendingToUs: function() { return this.fields.peersSendingToUs; },
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getPieceCount: function() { return this.fields.pieceCount; },
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getPieceSize: function() { return this.fields.pieceSize; },
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getPrivateFlag: function() { return this.fields.isPrivate; },
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getQueuePosition: function() { return this.fields.queuePosition; },
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getRecheckProgress: function() { return this.fields.recheckProgress; },
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getSeedRatioLimit: function() { return this.fields.seedRatioLimit; },
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getSeedRatioMode: function() { return this.fields.seedRatioMode; },
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getSizeWhenDone: function() { return this.fields.sizeWhenDone; },
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getStatus: function() { return this.fields.status; },
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getTotalSize: function() { return this.fields.totalSize; },
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getTrackers: function() { return this.fields.trackers; },
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getUploadSpeed: function() { return this.fields.rateUpload; },
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getUploadRatio: function() { return this.fields.uploadRatio; },
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getUploadedEver: function() { return this.fields.uploadedEver; },
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getWebseedsSendingToUs: function() { return this.fields.webseedsSendingToUs; },
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isFinished: function() { return this.fields.isFinished; },
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// derived accessors
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isSeeding: function() { return this.getStatus() === Torrent._StatusSeed; },
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isStopped: function() { return this.getStatus() === Torrent._StatusStopped; },
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isChecking: function() { return this.getStatus() === Torrent._StatusCheck; },
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isDownloading: function() { return this.getStatus() === Torrent._StatusDownload; },
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isDone: function() { return this.getLeftUntilDone() < 1; },
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needsMetaData: function(){ return this.getMetadataPercentComplete() < 1; },
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getActivity: function() { return this.getDownloadSpeed() + this.getUploadSpeed(); },
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getPercentDoneStr: function() { return Transmission.fmt.percentString(100*this.getPercentDone()); },
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getPercentDone: function() { return this.fields.percentDone; },
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getStateString: function() {
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switch(this.getStatus()) {
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case Torrent._StatusStopped: return this.isFinished() ? 'Seeding complete' : 'Paused';
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case Torrent._StatusCheckWait: return 'Queued for verification';
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case Torrent._StatusCheck: return 'Verifying local data';
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case Torrent._StatusDownloadWait: return 'Queued for download';
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case Torrent._StatusDownload: return 'Downloading';
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case Torrent._StatusSeedWait: return 'Queued for seeding';
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case Torrent._StatusSeed: return 'Seeding';
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case null:
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case undefined: return 'Unknown';
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default: return 'Error';
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}
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},
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seedRatioLimit: function(controller){
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switch(this.getSeedRatioMode()) {
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case Torrent._RatioUseGlobal: return controller.seedRatioLimit();
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case Torrent._RatioUseLocal: return this.getSeedRatioLimit();
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default: return -1;
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}
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},
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getErrorMessage: function() {
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var str = this.getErrorString();
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switch(this.getError()) {
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case Torrent._ErrTrackerWarning:
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return 'Tracker returned a warning: ' + str;
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case Torrent._ErrTrackerError:
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return 'Tracker returned an error: ' + str;
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case Torrent._ErrLocalError:
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return 'Error: ' + str;
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default:
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return null;
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}
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},
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getCollatedName: function() {
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var f = this.fields;
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if (!f.collatedName && f.name)
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f.collatedName = f.name.toLowerCase();
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return f.collatedName || '';
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},
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getCollatedTrackers: function() {
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var f = this.fields;
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if (!f.collatedTrackers && f.trackers)
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f.collatedTrackers = this.collateTrackers(f.trackers);
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return f.collatedTrackers || '';
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},
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/****
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*****
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****/
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testState: function(state)
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{
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var s = this.getStatus();
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switch(state)
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{
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case Prefs._FilterActive:
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return this.getPeersGettingFromUs() > 0
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|| this.getPeersSendingToUs() > 0
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|| this.getWebseedsSendingToUs() > 0
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|| this.isChecking();
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case Prefs._FilterSeeding:
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return (s === Torrent._StatusSeed)
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|| (s === Torrent._StatusSeedWait);
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case Prefs._FilterDownloading:
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return (s === Torrent._StatusDownload)
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|| (s === Torrent._StatusDownloadWait);
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case Prefs._FilterPaused:
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return this.isStopped();
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case Prefs._FilterFinished:
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return this.isFinished();
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default:
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return true;
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}
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},
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/**
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* @param filter one of Prefs._Filter*
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* @param search substring to look for, or null
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* @return true if it passes the test, false if it fails
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*/
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test: function(state, search, tracker)
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{
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// flter by state...
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var pass = this.testState(state);
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// maybe filter by text...
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if (pass && search && search.length)
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pass = this.getCollatedName().indexOf(search.toLowerCase()) !== -1;
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// maybe filter by tracker...
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if (pass && tracker && tracker.length)
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pass = this.getCollatedTrackers().indexOf(tracker) !== -1;
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return pass;
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}
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};
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/***
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****
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**** SORTING
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****
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***/
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Torrent.compareById = function(ta, tb)
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{
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return ta.getId() - tb.getId();
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};
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Torrent.compareByName = function(ta, tb)
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{
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return ta.getCollatedName().compareTo(tb.getCollatedName())
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|| Torrent.compareById(ta, tb);
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};
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Torrent.compareByQueue = function(ta, tb)
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{
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return ta.getQueuePosition() - tb.getQueuePosition();
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};
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Torrent.compareByAge = function(ta, tb)
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{
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var a = ta.getDateAdded(),
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b = tb.getDateAdded();
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return (b - a) || Torrent.compareByQueue(ta, tb);
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};
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Torrent.compareByState = function(ta, tb)
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{
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var a = ta.getStatus(),
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b = tb.getStatus();
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return (b - a) || Torrent.compareByQueue(ta, tb);
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};
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Torrent.compareByActivity = function(ta, tb)
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{
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var a = ta.getActivity(),
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b = tb.getActivity();
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return (b - a) || Torrent.compareByState(ta, tb);
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};
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Torrent.compareByRatio = function(ta, tb)
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{
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var a = ta.getUploadRatio(),
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b = tb.getUploadRatio();
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if (a < b) return 1;
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if (a > b) return -1;
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return Torrent.compareByState(ta, tb);
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};
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Torrent.compareByProgress = function(ta, tb)
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{
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var a = ta.getPercentDone(),
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b = tb.getPercentDone();
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return (a - b) || Torrent.compareByRatio(ta, tb);
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};
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Torrent.compareTorrents = function(a, b, sortMethod, sortDirection)
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{
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var i;
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switch(sortMethod)
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{
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case Prefs._SortByActivity:
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i = Torrent.compareByActivity(a,b);
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break;
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case Prefs._SortByAge:
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i = Torrent.compareByAge(a,b);
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break;
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case Prefs._SortByQueue:
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i = Torrent.compareByQueue(a,b);
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break;
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case Prefs._SortByProgress:
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i = Torrent.compareByProgress(a,b);
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break;
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case Prefs._SortByState:
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i = Torrent.compareByState(a,b);
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break;
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case Prefs._SortByRatio:
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i = Torrent.compareByRatio(a,b);
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break;
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default:
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i = Torrent.compareByName(a,b);
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break;
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}
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if (sortDirection === Prefs._SortDescending)
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i = -i;
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return i;
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};
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/**
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* @param torrents an array of Torrent objects
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* @param sortMethod one of Prefs._SortBy*
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* @param sortDirection Prefs._SortAscending or Prefs._SortDescending
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*/
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Torrent.sortTorrents = function(torrents, sortMethod, sortDirection)
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{
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switch(sortMethod)
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{
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case Prefs._SortByActivity:
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torrents.sort(this.compareByActivity);
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break;
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case Prefs._SortByAge:
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torrents.sort(this.compareByAge);
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break;
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case Prefs._SortByQueue:
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torrents.sort(this.compareByQueue);
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break;
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case Prefs._SortByProgress:
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torrents.sort(this.compareByProgress);
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break;
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case Prefs._SortByState:
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torrents.sort(this.compareByState);
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break;
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case Prefs._SortByRatio:
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torrents.sort(this.compareByRatio);
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break;
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default:
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torrents.sort(this.compareByName);
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break;
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}
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if (sortDirection === Prefs._SortDescending)
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torrents.reverse();
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return torrents;
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};
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