/usr/share/GNUstep/SOGo/WebServerResources/SOGoMailDataSource.js is in sogo-common 2.2.17a-1.1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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SOGoMailDataSource = Class.create({
initialize: function(dataTable, url) {
// Instance variables
this.dataTable = dataTable;
this.id = url;
this.url = url;
this.uids = new Array();
this.threaded = false;
this.cache = new Hash();
this.loaded = false;
this.delayedGetData = false;
this.ajaxGetData = false;
// Constants
this.overflow = 50; // must be higher or equal to the overflow of the data table class
},
destroy: function() {
this.uids.clear();
var keys = this.cache.keys();
for (var i = 0; i < keys.length; i++)
this.cache.unset(keys[i]);
},
invalidate: function(uid) {
this.cache.unset(uid);
var index = this.indexOf(uid);
// log ("MailDataSource.invalidate(" + uid + ") at index " + index);
return index;
},
remove: function(uid) {
// log ("MailDataSource.remove(" + uid + ")");
var index = this.invalidate(uid);
if (index >= 0) {
this.uids.splice(index, 1);
}
return index;
},
init: function(uids, threaded, headers, quotas) {
this.uids = uids;
if (typeof threaded != "undefined") {
this.threaded = threaded;
if (threaded)
this.uids.shift(); // drop key fields
}
// log ("MailDataSource.init() " + this.uids.length + " uids loaded");
if (quotas && Object.isFunction(updateQuotas))
updateQuotas(quotas);
if (headers) {
var keys = headers[0];
for (var i = 1; i < headers.length; i++) {
var header = [];
for (var j = 0; j < keys.length; j++)
header[keys[j]] = headers[i][j];
this.cache.set(header["uid"], header);
}
// log ("MailDataSource.init() " + this.cache.keys().length + " headers loaded");
}
this.loaded = true;
// log ("MailDataSource.init() " + this.uids.length + " UIDs, " + this.cache.keys().length + " headers");
},
load: function(content) {
this.loaded = false;
triggerAjaxRequest(this.url + "/uids",
this._loadCallback.bind(this),
null,
content,
{ "content-type": "application/json" });
},
_loadCallback: function(http) {
if (http.status == 200) {
if (http.responseText.length > 0) {
var data = http.responseText.evalJSON(true);
if (data.uids)
this.init(data.uids, data.threaded, data.headers, data.quotas);
else
this.init(data);
if (this.delayedGetData) {
this.delayedGetData();
this.delayedGetData = false;
}
}
}
else {
log("SOGoMailDataSource._loadCallback Error " + http.status + ": " + http.responseText);
}
},
getData: function(id, index, count, callbackFunction, delay) {
if (this.loaded == false) {
// UIDs are not yet loaded -- delay the call until loading the data is completed.
// log ("MailDataSource.getData() delaying data fetching while waiting for UIDs");
this.delayedGetData = this.getData.bind(this, id, index, count, callbackFunction, delay);
return;
}
var start, end;
if (count > 1) {
// Compute last index depending on number of UIDs
start = index - (this.overflow/2);
if (start < 0) start = 0;
end = index + count + this.overflow - (index - start);
if (end > this.uids.length) {
start -= end - this.uids.length;
end = this.uids.length;
if (start < 0) start = 0;
}
}
else {
// Count is 1; don't fetch more data since the caller is
// SOGoDataTable.invalide() and asks for only one data row.
start = index;
end = index + count;
}
// log ("MailDataSource._getData() from " + index + " to " + (index + count) + " boosted from " + start + " to " + end);
var missingUids = [];
for (var j = start; j < end; j++) {
var uid = this.threaded? this.uids[j][0] : this.uids[j];
if (!this.cache.get(uid)) {
// log ("MailDataSource._getData missing headers of uid " + uid + " at index " + j + (this.threaded? " (":" (non-") + "threaded)");
missingUids.push(uid);
}
}
if (this.delayed_getRemoteData) window.clearTimeout(this.delayed_getRemoteData);
if (missingUids.length > 0) {
var params = "uids=" + missingUids.join(",");
this.delayed_getRemoteData = this._getRemoteData.bind(this,
{ callbackFunction: callbackFunction,
start: start, end: end,
id: id },
params).delay(delay);
}
else if (callbackFunction)
this._returnData(callbackFunction, id, start, end);
},
_getRemoteData: function(callbackData, urlParams) {
if (this.ajaxGetData) {
this.ajaxGetData.aborted = true;
this.ajaxGetData.abort();
// log ("MailDataSource._getRemoteData() aborted previous AJAX request");
}
// log ("MailDataSource._getRemoteData() fetching headers of " + urlParams);
this.ajaxGetData = triggerAjaxRequest(this.url + "/headers",
this._getRemoteDataCallback.bind(this),
callbackData,
urlParams,
{ "Content-type": "application/x-www-form-urlencoded" });
},
_getRemoteDataCallback: function(http) {
if (http.status == 200) {
if (http.responseText.length > 0) {
// We receives an array of hashes
var headers = $A(http.responseText.evalJSON(true));
var data = http.callbackData;
var keys = headers[0];
for (var i = 1; i < headers.length; i++) {
var header = [];
for (var j = 0; j < keys.length; j++)
header[keys[j]] = headers[i][j];
this.cache.set(header["uid"], header);
}
if (data["callbackFunction"])
this._returnData(data["callbackFunction"], data["id"], data["start"], data["end"]);
}
}
else {
log("SOGoMailDataSource._getRemoteDataCallback Error " + http.status + ": " + http.responseText);
}
},
_returnData: function(callbackFunction, id, start, end) {
var i, j;
var data = new Array();
for (i = start, j = 0; i < end; i++, j++) {
if (this.threaded) {
data[j] = this.cache.get(this.uids[i][0]);
// Add thread-related data
if (parseInt(this.uids[i][2]) > 0) {
var mailbox = Mailer.currentMailbox;
if ((UserSettings.Mail.threadsCollapsed != undefined) &&
(UserSettings.Mail.threadsCollapsed[Mailer.currentMailbox] != undefined) &&
(UserSettings.Mail.threadsCollapsed[Mailer.currentMailbox].indexOf((this.uids[i][0]).toString())) != -1) {
data[j]['Thread'] = '<img class="messageThread" src="' + ResourcesURL + '/arrow-right.png">';
}
else
data[j]['Thread'] = '<img class="messageThread" src="' + ResourcesURL + '/arrow-down.png">';
}
else if (data[j]['Thread'])
delete data[j]['Thread'];
if (parseInt(this.uids[i][1]) > -1)
data[j]['ThreadLevel'] = this.uids[i][1];
else
delete data[j]['ThreadLevel'];
}
else {
data[j] = this.cache.get(this.uids[i]);
}
}
callbackFunction(id, start, this.uids.length, data);
},
indexOf: function(uid) {
var index = -1;
if (this.threaded) {
for (var i = 0; i < this.uids.length; i++)
if (this.uids[i][0] == uid) {
index = i;
break;
}
}
else
index = this.uids.indexOf(parseInt(uid));
return index;
},
uidAtIndex: function(index) {
if (this.threaded)
return this.uids[index][0];
else
return this.uids[index];
}
});
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