js/functions.js

   1 /* global dijit, __ */
   2
   3 var loading_progress = 0;
   4 var sanity_check_done = false;
   5 var init_params = {};
   6 var _label_base_index = -1024;
   7 var notify_hide_timerid = false;
   8
   9 Ajax.Base.prototype.initialize = Ajax.Base.prototype.initialize.wrap(
  10         function (callOriginal, options) {
  11
  12                 if (getInitParam("csrf_token") != undefined) {
  13                         Object.extend(options, options || { });
  14
  15                         if (Object.isString(options.parameters))
  16                                 options.parameters = options.parameters.toQueryParams();
  17                         else if (Object.isHash(options.parameters))
  18                                 options.parameters = options.parameters.toObject();
  19
  20                         options.parameters["csrf_token"] = getInitParam("csrf_token");
  21                 }
  22
  23                 return callOriginal(options);
  24         }
  25 );
  26
  27 /* add method to remove element from array */
  28
  29 Array.prototype.remove = function(s) {
  30         for (let i=0; i < this.length; i++) {
  31                 if (s == this[i]) this.splice(i, 1);
  32         }
  33 };
  34
  35 function report_error(message, filename, lineno, colno, error) {
  36         exception_error(error, null, filename, lineno);
  37 }
  38
  39 function exception_error(e, e_compat, filename, lineno, colno) {
  40         if (typeof e == "string") e = e_compat;
  41
  42         if (!e) return; // no exception object, nothing to report.
  43
  44         try {
  45                 console.error(e);
  46                 const msg = e.toString();
  47
  48                 try {
  49                         new Ajax.Request("backend.php", {
  50                                 parameters: {op: "rpc", method: "log",
  51                                         file: e.fileName ? e.fileName : filename,
  52                                         line: e.lineNumber ? e.lineNumber : lineno,
  53                                         msg: msg, context: e.stack},
  54                                 onComplete: function (transport) {
  55                                         console.warn(transport.responseText);
  56                                 } });
  57
  58                 } catch (e) {
  59                         console.error("Exception while trying to log the error.", e);
  60                 }
  61
  62                 let content = "<div class='fatalError'><p>" + msg + "</p>";
  63
  64                 if (e.stack) {
  65                         content += "<div><b>Stack trace:</b></div>" +
  66                                 "<textarea name=\"stack\" readonly=\"1\">" + e.stack + "</textarea>";
  67                 }
  68
  69                 content += "</div>";
  70
  71                 content += "<div class='dlgButtons'>";
  72
  73                 content += "<button dojoType=\"dijit.form.Button\" "+
  74                                 "onclick=\"dijit.byId('exceptionDlg').hide()\">" +
  75                                 __('Close') + "</button>";
  76                 content += "</div>";
  77
  78                 if (dijit.byId("exceptionDlg"))
  79                         dijit.byId("exceptionDlg").destroyRecursive();
  80
  81                 const dialog = new dijit.Dialog({
  82                         id: "exceptionDlg",
  83                         title: "Unhandled exception",
  84                         style: "width: 600px",
  85                         content: content});
  86
  87                 dialog.show();
  88
  89         } catch (ei) {
  90                 console.error("Exception while trying to report an exception:", ei);
  91                 console.error("Original exception:", e);
  92
  93                 alert("Exception occured while trying to report an exception.\n" +
  94                         ei.stack + "\n\nOriginal exception:\n" + e.stack);
  95         }
  96
  97 }
  98
  99 function param_escape(arg) {
 100         return encodeURIComponent(arg);
 101 }
 102
 103 function notify_real(msg, no_hide, n_type) {
 104
 105         const n = $("notify");
 106
 107         if (!n) return;
 108
 109         if (notify_hide_timerid) {
 110                 window.clearTimeout(notify_hide_timerid);
 111         }
 112
 113         if (msg == "") {
 114                 if (n.hasClassName("visible")) {
 115                         notify_hide_timerid = window.setTimeout(function() {
 116                                 n.removeClassName("visible") }, 0);
 117                 }
 118                 return;
 119         }
 120
 121         /* types:
 122
 123                 1 - generic
 124                 2 - progress
 125                 3 - error
 126                 4 - info
 127
 128         */
 129
 130         msg = "<span class=\"msg\"> " + __(msg) + "</span>";
 131
 132         if (n_type == 2) {
 133                 msg = "<span><img src=\""+getInitParam("icon_indicator_white")+"\"></span>" + msg;
 134                 no_hide = true;
 135         } else if (n_type == 3) {
 136                 msg = "<span><img src=\""+getInitParam("icon_alert")+"\"></span>" + msg;
 137         } else if (n_type == 4) {
 138                 msg = "<span><img src=\""+getInitParam("icon_information")+"\"></span>" + msg;
 139         }
 140
 141         msg += " <span><img src=\""+getInitParam("icon_cross")+"\" class=\"close\" title=\"" +
 142                 __("Click to close") + "\" onclick=\"notify('')\"></span>";
 143
 144         n.innerHTML = msg;
 145
 146         window.setTimeout(function() {
 147                 // goddamnit firefox
 148                 if (n_type == 2) {
 149                 n.className = "notify notify_progress visible";
 150                         } else if (n_type == 3) {
 151                         n.className = "notify notify_error visible";
 152                         msg = "<span><img src='images/alert.png'></span>" + msg;
 153                 } else if (n_type == 4) {
 154                         n.className = "notify notify_info visible";
 155                 } else {
 156                         n.className = "notify visible";
 157                 }
 158
 159                 if (!no_hide) {
 160                         notify_hide_timerid = window.setTimeout(function() {
 161                                 n.removeClassName("visible") }, 5*1000);
 162                 }
 163
 164         }, 10);
 165
 166 }
 167
 168 function notify(msg, no_hide) {
 169         notify_real(msg, no_hide, 1);
 170 }
 171
 172 function notify_progress(msg, no_hide) {
 173         notify_real(msg, no_hide, 2);
 174 }
 175
 176 function notify_error(msg, no_hide) {
 177         notify_real(msg, no_hide, 3);
 178
 179 }
 180
 181 function notify_info(msg, no_hide) {
 182         notify_real(msg, no_hide, 4);
 183 }
 184
 185 function setCookie(name, value, lifetime, path, domain, secure) {
 186
 187         let d = false;
 188
 189         if (lifetime) {
 190                 d = new Date();
 191                 d.setTime(d.getTime() + (lifetime * 1000));
 192         }
 193
 194         console.log("setCookie: " + name + " => " + value + ": " + d);
 195
 196         int_setCookie(name, value, d, path, domain, secure);
 197
 198 }
 199
 200 function int_setCookie(name, value, expires, path, domain, secure) {
 201         document.cookie= name + "=" + escape(value) +
 202                 ((expires) ? "; expires=" + expires.toGMTString() : "") +
 203                 ((path) ? "; path=" + path : "") +
 204                 ((domain) ? "; domain=" + domain : "") +
 205                 ((secure) ? "; secure" : "");
 206 }
 207
 208 function delCookie(name, path, domain) {
 209         if (getCookie(name)) {
 210                 document.cookie = name + "=" +
 211                 ((path) ? ";path=" + path : "") +
 212                 ((domain) ? ";domain=" + domain : "" ) +
 213                 ";expires=Thu, 01-Jan-1970 00:00:01 GMT";
 214         }
 215 }
 216
 217
 218 function getCookie(name) {
 219
 220         const dc = document.cookie;
 221         const prefix = name + "=";
 222         let begin = dc.indexOf("; " + prefix);
 223         if (begin == -1) {
 224             begin = dc.indexOf(prefix);
 225             if (begin != 0) return null;
 226         }
 227         else {
 228             begin += 2;
 229         }
 230         let end = document.cookie.indexOf(";", begin);
 231         if (end == -1) {
 232             end = dc.length;
 233         }
 234         return unescape(dc.substring(begin + prefix.length, end));
 235 }
 236
 237 function gotoPreferences() {
 238         document.location.href = "prefs.php";
 239 }
 240
 241 function gotoLogout() {
 242         document.location.href = "backend.php?op=logout";
 243 }
 244
 245 function gotoMain() {
 246         document.location.href = "index.php";
 247 }
 248
 249 function toggleSelectRowById(sender, id) {
 250         const row = $(id);
 251         return toggleSelectRow(sender, row);
 252 }
 253
 254 /* this is for dijit Checkbox */
 255 function toggleSelectListRow2(sender) {
 256         const row = sender.domNode.parentNode;
 257         return toggleSelectRow(sender, row);
 258 }
 259
 260 /* this is for dijit Checkbox */
 261 function toggleSelectRow2(sender, row, is_cdm) {
 262
 263         if (!row)
 264                 if (!is_cdm)
 265                         row = sender.domNode.parentNode.parentNode;
 266                 else
 267                         row = sender.domNode.parentNode.parentNode.parentNode; // oh ffs
 268
 269         if (sender.checked && !row.hasClassName('Selected'))
 270                 row.addClassName('Selected');
 271         else
 272                 row.removeClassName('Selected');
 273
 274         if (typeof updateSelectedPrompt != undefined)
 275                 updateSelectedPrompt();
 276 }
 277
 278
 279 function toggleSelectRow(sender, row) {
 280
 281         if (!row) row = sender.parentNode.parentNode;
 282
 283         if (sender.checked && !row.hasClassName('Selected'))
 284                 row.addClassName('Selected');
 285         else
 286                 row.removeClassName('Selected');
 287
 288         if (typeof updateSelectedPrompt != undefined)
 289                 updateSelectedPrompt();
 290 }
 291
 292 function checkboxToggleElement(elem, id) {
 293         if (elem.checked) {
 294                 Effect.Appear(id, {duration : 0.5});
 295         } else {
 296                 Effect.Fade(id, {duration : 0.5});
 297         }
 298 }
 299
 300 function getURLParam(param){
 301         return String(window.location.href).parseQuery()[param];
 302 }
 303
 304 function closeInfoBox() {
 305         const dialog = dijit.byId("infoBox");
 306
 307         if (dialog)     dialog.hide();
 308
 309         return false;
 310 }
 311
 312
 313 function displayDlg(title, id, param, callback) {
 314
 315         notify_progress("Loading, please wait...", true);
 316
 317         const query = "?op=dlg&method=" +
 318                 param_escape(id) + "&param=" + param_escape(param);
 319
 320         new Ajax.Request("backend.php", {
 321                 parameters: query,
 322                 onComplete: function (transport) {
 323                         infobox_callback2(transport, title);
 324                         if (callback) callback(transport);
 325                 } });
 326
 327         return false;
 328 }
 329
 330 function infobox_callback2(transport, title) {
 331         let dialog = false;
 332
 333         if (dijit.byId("infoBox")) {
 334                 dialog = dijit.byId("infoBox");
 335         }
 336
 337         //console.log("infobox_callback2");
 338         notify('');
 339
 340         const content = transport.responseText;
 341
 342         if (!dialog) {
 343                 dialog = new dijit.Dialog({
 344                         title: title,
 345                         id: 'infoBox',
 346                         style: "width: 600px",
 347                         onCancel: function() {
 348                                 return true;
 349                         },
 350                         onExecute: function() {
 351                                 return true;
 352                         },
 353                         onClose: function() {
 354                                 return true;
 355                                 },
 356                         content: content});
 357         } else {
 358                 dialog.attr('title', title);
 359                 dialog.attr('content', content);
 360         }
 361
 362         dialog.show();
 363
 364         notify("");
 365 }
 366
 367 function getInitParam(key) {
 368         return init_params[key];
 369 }
 370
 371 function setInitParam(key, value) {
 372         init_params[key] = value;
 373 }
 374
 375 function fatalError(code, msg, ext_info) {
 376         if (code == 6) {
 377                 window.location.href = "index.php";
 378         } else if (code == 5) {
 379                 window.location.href = "public.php?op=dbupdate";
 380         } else {
 381
 382                 if (msg == "") msg = "Unknown error";
 383
 384                 if (ext_info) {
 385                         if (ext_info.responseText) {
 386                                 ext_info = ext_info.responseText;
 387                         }
 388                 }
 389
 390                 if (ERRORS && ERRORS[code] && !msg) {
 391                         msg = ERRORS[code];
 392                 }
 393
 394                 let content = "<div><b>Error code:</b> " + code + "</div>" +
 395                         "<p>" + msg + "</p>";
 396
 397                 if (ext_info) {
 398                         content = content + "<div><b>Additional information:</b></div>" +
 399                                 "<textarea style='width: 100%' readonly=\"1\">" +
 400                                 ext_info + "</textarea>";
 401                 }
 402
 403                 const dialog = new dijit.Dialog({
 404                         title: "Fatal error",
 405                         style: "width: 600px",
 406                         content: content});
 407
 408                 dialog.show();
 409
 410         }
 411
 412         return false;
 413
 414 }
 415
 416 function filterDlgCheckAction(sender) {
 417         const action = sender.value;
 418
 419         const action_param = $("filterDlg_paramBox");
 420
 421         if (!action_param) {
 422                 console.log("filterDlgCheckAction: can't find action param box!");
 423                 return;
 424         }
 425
 426         // if selected action supports parameters, enable params field
 427         if (action == 4 || action == 6 || action == 7 || action == 9) {
 428                 new Effect.Appear(action_param, {duration : 0.5});
 429
 430                 Element.hide(dijit.byId("filterDlg_actionParam").domNode);
 431                 Element.hide(dijit.byId("filterDlg_actionParamLabel").domNode);
 432                 Element.hide(dijit.byId("filterDlg_actionParamPlugin").domNode);
 433
 434                 if (action == 7) {
 435                         Element.show(dijit.byId("filterDlg_actionParamLabel").domNode);
 436                 } else if (action == 9) {
 437                         Element.show(dijit.byId("filterDlg_actionParamPlugin").domNode);
 438                 } else {
 439                         Element.show(dijit.byId("filterDlg_actionParam").domNode);
 440                 }
 441
 442         } else {
 443                 Element.hide(action_param);
 444         }
 445 }
 446
 447
 448 function explainError(code) {
 449         return displayDlg(__("Error explained"), "explainError", code);
 450 }
 451
 452 function loading_set_progress(p) {
 453         loading_progress += p;
 454
 455         if (dijit.byId("loading_bar"))
 456                 dijit.byId("loading_bar").update({progress: loading_progress});
 457
 458         if (loading_progress >= 90)
 459                 remove_splash();
 460
 461 }
 462
 463 function remove_splash() {
 464         Element.hide("overlay");
 465 }
 466
 467 function strip_tags(s) {
 468         return s.replace(/<\/?[^>]+(>|$)/g, "");
 469 }
 470
 471 function hotkey_prefix_timeout() {
 472
 473         const date = new Date();
 474         const ts = Math.round(date.getTime() / 1000);
 475
 476         if (hotkey_prefix_pressed && ts - hotkey_prefix_pressed >= 5) {
 477                 console.log("hotkey_prefix seems to be stuck, aborting");
 478                 hotkey_prefix_pressed = false;
 479                 hotkey_prefix = false;
 480                 Element.hide('cmdline');
 481         }
 482
 483         setTimeout(hotkey_prefix_timeout, 1000);
 484
 485 }
 486
 487 function uploadIconHandler(rc) {
 488         switch (rc) {
 489                 case 0:
 490                         notify_info("Upload complete.");
 491                         if (inPreferences()) {
 492                                 updateFeedList();
 493                         } else {
 494                                 setTimeout('updateFeedList(false, false)', 50);
 495                         }
 496                         break;
 497                 case 1:
 498                         notify_error("Upload failed: icon is too big.");
 499                         break;
 500                 case 2:
 501                         notify_error("Upload failed.");
 502                         break;
 503         }
 504 }
 505
 506 function removeFeedIcon(id) {
 507         if (confirm(__("Remove stored feed icon?"))) {
 508                 const query = "backend.php?op=pref-feeds&method=removeicon&feed_id=" + param_escape(id);
 509
 510                 console.log(query);
 511
 512                 notify_progress("Removing feed icon...", true);
 513
 514                 new Ajax.Request("backend.php", {
 515                         parameters: query,
 516                         onComplete: function(transport) {
 517                                 notify_info("Feed icon removed.");
 518                                 if (inPreferences()) {
 519                                         updateFeedList();
 520                                 } else {
 521                                         setTimeout('updateFeedList(false, false)', 50);
 522                                 }
 523                         } });
 524         }
 525
 526         return false;
 527 }
 528
 529 function uploadFeedIcon() {
 530         const file = $("icon_file");
 531
 532         if (file.value.length == 0) {
 533                 alert(__("Please select an image file to upload."));
 534         } else if (confirm(__("Upload new icon for this feed?"))) {
 535                         notify_progress("Uploading, please wait...", true);
 536                         return true;
 537                 }
 538
 539         return false;
 540 }
 541
 542 function addLabel(select, callback) {
 543
 544         const caption = prompt(__("Please enter label caption:"), "");
 545
 546         if (caption != undefined) {
 547
 548                 if (caption == "") {
 549                         alert(__("Can't create label: missing caption."));
 550                         return false;
 551                 }
 552
 553                 let query = "?op=pref-labels&method=add&caption=" +
 554                         param_escape(caption);
 555
 556                 if (select)
 557                         query += "&output=select";
 558
 559                 notify_progress("Loading, please wait...", true);
 560
 561                 new Ajax.Request("backend.php", {
 562                         parameters: query,
 563                         onComplete: function(transport) {
 564                                 if (callback) {
 565                                         callback(transport);
 566                                 } else if (inPreferences()) {
 567                                         updateLabelList();
 568                                 } else {
 569                                         updateFeedList();
 570                                 }
 571                 } });
 572
 573         }
 574
 575 }
 576
 577 function quickAddFeed() {
 578         const query = "backend.php?op=feeds&method=quickAddFeed";
 579
 580         // overlapping widgets
 581         if (dijit.byId("batchSubDlg")) dijit.byId("batchSubDlg").destroyRecursive();
 582         if (dijit.byId("feedAddDlg"))   dijit.byId("feedAddDlg").destroyRecursive();
 583
 584         const dialog = new dijit.Dialog({
 585                 id: "feedAddDlg",
 586                 title: __("Subscribe to Feed"),
 587                 style: "width: 600px",
 588                 show_error: function(msg) {
 589                         const elem = $("fadd_error_message");
 590
 591                         elem.innerHTML = msg;
 592
 593                         if (!Element.visible(elem))
 594                                 new Effect.Appear(elem);
 595
 596                 },
 597                 execute: function() {
 598                         if (this.validate()) {
 599                                 console.log(dojo.objectToQuery(this.attr('value')));
 600
 601                                 const feed_url = this.attr('value').feed;
 602
 603                                 Element.show("feed_add_spinner");
 604                                 Element.hide("fadd_error_message");
 605
 606                                 new Ajax.Request("backend.php", {
 607                                         parameters: dojo.objectToQuery(this.attr('value')),
 608                                         onComplete: function(transport) {
 609                                                 try {
 610
 611                                                         try {
 612                                                                 var reply = JSON.parse(transport.responseText);
 613                                                         } catch (e) {
 614                                                                 Element.hide("feed_add_spinner");
 615                                                                 alert(__("Failed to parse output. This can indicate server timeout and/or network issues. Backend output was logged to browser console."));
 616                                                                 console.log('quickAddFeed, backend returned:' + transport.responseText);
 617                                                                 return;
 618                                                         }
 619
 620                                                         const rc = reply['result'];
 621
 622                                                         notify('');
 623                                                         Element.hide("feed_add_spinner");
 624
 625                                                         console.log(rc);
 626
 627                                                         switch (parseInt(rc['code'])) {
 628                                                         case 1:
 629                                                                 dialog.hide();
 630                                                                 notify_info(__("Subscribed to %s").replace("%s", feed_url));
 631
 632                                                                 updateFeedList();
 633                                                                 break;
 634                                                         case 2:
 635                                                                 dialog.show_error(__("Specified URL seems to be invalid."));
 636                                                                 break;
 637                                                         case 3:
 638                                                                 dialog.show_error(__("Specified URL doesn't seem to contain any feeds."));
 639                                                                 break;
 640                                                         case 4:
 641                                                                 var feeds = rc['feeds'];
 642
 643                                                                 Element.show("fadd_multiple_notify");
 644
 645                                                                 var select = dijit.byId("feedDlg_feedContainerSelect");
 646
 647                                                                 while (select.getOptions().length > 0)
 648                                                                         select.removeOption(0);
 649
 650                                                                 select.addOption({value: '', label: __("Expand to select feed")});
 651
 652                                                                 var count = 0;
 653                                                                 for (const feedUrl in feeds) {
 654                                                                         select.addOption({value: feedUrl, label: feeds[feedUrl]});
 655                                                                         count++;
 656                                                                 }
 657
 658                                                                 Effect.Appear('feedDlg_feedsContainer', {duration : 0.5});
 659
 660                                                                 break;
 661                                                         case 5:
 662                                                                 dialog.show_error(__("Couldn't download the specified URL: %s").
 663                                                                                 replace("%s", rc['message']));
 664                                                                 break;
 665                                                         case 6:
 666                                                                 dialog.show_error(__("XML validation failed: %s").
 667                                                                                 replace("%s", rc['message']));
 668                                                                 break;
 669                                                         case 0:
 670                                                                 dialog.show_error(__("You are already subscribed to this feed."));
 671                                                                 break;
 672                                                         }
 673
 674                                                 } catch (e) {
 675                                                         console.error(transport.responseText);
 676                                                         exception_error(e);
 677                                                 }
 678
 679                                         } });
 680
 681                                 }
 682                 },
 683                 href: query});
 684
 685         dialog.show();
 686 }
 687
 688 function createNewRuleElement(parentNode, replaceNode) {
 689         const form = document.forms["filter_new_rule_form"];
 690
 691         //form.reg_exp.value = form.reg_exp.value.replace(/(<([^>]+)>)/ig,"");
 692
 693         const query = "backend.php?op=pref-filters&method=printrulename&rule="+
 694                 param_escape(dojo.formToJson(form));
 695
 696         console.log(query);
 697
 698         new Ajax.Request("backend.php", {
 699                 parameters: query,
 700                 onComplete: function (transport) {
 701                         try {
 702                                 const li = dojo.create("li");
 703
 704                                 const cb = dojo.create("input", { type: "checkbox" }, li);
 705
 706                                 new dijit.form.CheckBox({
 707                                         onChange: function() {
 708                                                 toggleSelectListRow2(this) },
 709                                 }, cb);
 710
 711                                 dojo.create("input", { type: "hidden",
 712                                         name: "rule[]",
 713                                         value: dojo.formToJson(form) }, li);
 714
 715                                 dojo.create("span", {
 716                                         onclick: function() {
 717                                                 dijit.byId('filterEditDlg').editRule(this);
 718                                         },
 719                                         innerHTML: transport.responseText }, li);
 720
 721                                 if (replaceNode) {
 722                                         parentNode.replaceChild(li, replaceNode);
 723                                 } else {
 724                                         parentNode.appendChild(li);
 725                                 }
 726                         } catch (e) {
 727                                 exception_error(e);
 728                         }
 729         } });
 730 }
 731
 732 function createNewActionElement(parentNode, replaceNode) {
 733         const form = document.forms["filter_new_action_form"];
 734
 735         if (form.action_id.value == 7) {
 736                 form.action_param.value = form.action_param_label.value;
 737         } else if (form.action_id.value == 9) {
 738                 form.action_param.value = form.action_param_plugin.value;
 739         }
 740
 741         const query = "backend.php?op=pref-filters&method=printactionname&action="+
 742                 param_escape(dojo.formToJson(form));
 743
 744         console.log(query);
 745
 746         new Ajax.Request("backend.php", {
 747                 parameters: query,
 748                 onComplete: function (transport) {
 749                         try {
 750                                 const li = dojo.create("li");
 751
 752                                 const cb = dojo.create("input", { type: "checkbox" }, li);
 753
 754                                 new dijit.form.CheckBox({
 755                                         onChange: function() {
 756                                                 toggleSelectListRow2(this) },
 757                                 }, cb);
 758
 759                                 dojo.create("input", { type: "hidden",
 760                                         name: "action[]",
 761                                         value: dojo.formToJson(form) }, li);
 762
 763                                 dojo.create("span", {
 764                                         onclick: function() {
 765                                                 dijit.byId('filterEditDlg').editAction(this);
 766                                         },
 767                                         innerHTML: transport.responseText }, li);
 768
 769                                 if (replaceNode) {
 770                                         parentNode.replaceChild(li, replaceNode);
 771                                 } else {
 772                                         parentNode.appendChild(li);
 773                                 }
 774
 775                         } catch (e) {
 776                                 exception_error(e);
 777                         }
 778                 } });
 779 }
 780
 781
 782 function addFilterRule(replaceNode, ruleStr) {
 783         if (dijit.byId("filterNewRuleDlg"))
 784                 dijit.byId("filterNewRuleDlg").destroyRecursive();
 785
 786         const query = "backend.php?op=pref-filters&method=newrule&rule=" +
 787                 param_escape(ruleStr);
 788
 789         const rule_dlg = new dijit.Dialog({
 790                 id: "filterNewRuleDlg",
 791                 title: ruleStr ? __("Edit rule") : __("Add rule"),
 792                 style: "width: 600px",
 793                 execute: function() {
 794                         if (this.validate()) {
 795                                 createNewRuleElement($("filterDlg_Matches"), replaceNode);
 796                                 this.hide();
 797                         }
 798                 },
 799                 href: query});
 800
 801         rule_dlg.show();
 802 }
 803
 804 function addFilterAction(replaceNode, actionStr) {
 805         if (dijit.byId("filterNewActionDlg"))
 806                 dijit.byId("filterNewActionDlg").destroyRecursive();
 807
 808         const query = "backend.php?op=pref-filters&method=newaction&action=" +
 809                 param_escape(actionStr);
 810
 811         const rule_dlg = new dijit.Dialog({
 812                 id: "filterNewActionDlg",
 813                 title: actionStr ? __("Edit action") : __("Add action"),
 814                 style: "width: 600px",
 815                 execute: function() {
 816                         if (this.validate()) {
 817                                 createNewActionElement($("filterDlg_Actions"), replaceNode);
 818                                 this.hide();
 819                         }
 820                 },
 821                 href: query});
 822
 823         rule_dlg.show();
 824 }
 825
 826 function editFilterTest(query) {
 827
 828         if (dijit.byId("filterTestDlg"))
 829                 dijit.byId("filterTestDlg").destroyRecursive();
 830
 831         var test_dlg = new dijit.Dialog({
 832                 id: "filterTestDlg",
 833                 title: "Test Filter",
 834                 style: "width: 600px",
 835                 results: 0,
 836                 limit: 100,
 837                 max_offset: 10000,
 838                 getTestResults: function(query, offset) {
 839                         const updquery = query + "&offset=" + offset + "&limit=" + test_dlg.limit;
 840
 841                         console.log("getTestResults:" + offset);
 842
 843                         new Ajax.Request("backend.php", {
 844                                 parameters: updquery,
 845                                 onComplete: function (transport) {
 846                                         try {
 847                                                 const result = JSON.parse(transport.responseText);
 848
 849                                                 if (result && dijit.byId("filterTestDlg") && dijit.byId("filterTestDlg").open) {
 850                                                         test_dlg.results += result.length;
 851
 852                                                         console.log("got results:" + result.length);
 853
 854                                                         $("prefFilterProgressMsg").innerHTML = __("Looking for articles (%d processed, %f found)...")
 855                                                                 .replace("%f", test_dlg.results)
 856                                                                 .replace("%d", offset);
 857
 858                                                         console.log(offset + " " + test_dlg.max_offset);
 859
 860                                                         for (let i = 0; i < result.length; i++) {
 861                                                                 const tmp = new Element("table");
 862                                                                 tmp.innerHTML = result[i];
 863                                                                 dojo.parser.parse(tmp);
 864
 865                                                                 $("prefFilterTestResultList").innerHTML += tmp.innerHTML;
 866                                                         }
 867
 868                                                         if (test_dlg.results < 30 && offset < test_dlg.max_offset) {
 869
 870                                                                 // get the next batch
 871                                                                 window.setTimeout(function () {
 872                                                                         test_dlg.getTestResults(query, offset + test_dlg.limit);
 873                                                                 }, 0);
 874
 875                                                         } else {
 876                                                                 // all done
 877
 878                                                                 Element.hide("prefFilterLoadingIndicator");
 879
 880                                                                 if (test_dlg.results == 0) {
 881                                                                         $("prefFilterTestResultList").innerHTML = "<tr><td align='center'>No recent articles matching this filter have been found.</td></tr>";
 882                                                                         $("prefFilterProgressMsg").innerHTML = "Articles matching this filter:";
 883                                                                 } else {
 884                                                                         $("prefFilterProgressMsg").innerHTML = __("Found %d articles matching this filter:")
 885                                                                                 .replace("%d", test_dlg.results);
 886                                                                 }
 887
 888                                                         }
 889
 890                                                 } else if (!result) {
 891                                                         console.log("getTestResults: can't parse results object");
 892
 893                                                         Element.hide("prefFilterLoadingIndicator");
 894
 895                                                         notify_error("Error while trying to get filter test results.");
 896
 897                                                 } else {
 898                                                         console.log("getTestResults: dialog closed, bailing out.");
 899                                                 }
 900                                         } catch (e) {
 901                                                 exception_error(e);
 902                                         }
 903
 904                                 } });
 905                 },
 906                 href: query});
 907
 908         dojo.connect(test_dlg, "onLoad", null, function(e) {
 909                 test_dlg.getTestResults(query, 0);
 910         });
 911
 912         test_dlg.show();
 913
 914 }
 915
 916 function quickAddFilter() {
 917         let query = "";
 918         if (!inPreferences()) {
 919                 query = "backend.php?op=pref-filters&method=newfilter&feed=" +
 920                         param_escape(getActiveFeedId()) + "&is_cat=" +
 921                         param_escape(activeFeedIsCat());
 922         } else {
 923                 query = "backend.php?op=pref-filters&method=newfilter";
 924         }
 925
 926         console.log(query);
 927
 928         if (dijit.byId("feedEditDlg"))
 929                 dijit.byId("feedEditDlg").destroyRecursive();
 930
 931         if (dijit.byId("filterEditDlg"))
 932                 dijit.byId("filterEditDlg").destroyRecursive();
 933
 934         const dialog = new dijit.Dialog({
 935                 id: "filterEditDlg",
 936                 title: __("Create Filter"),
 937                 style: "width: 600px",
 938                 test: function() {
 939                         const query = "backend.php?" + dojo.formToQuery("filter_new_form") + "&savemode=test";
 940
 941                         editFilterTest(query);
 942                 },
 943                 selectRules: function(select) {
 944                         $$("#filterDlg_Matches input[type=checkbox]").each(function(e) {
 945                                 e.checked = select;
 946                                 if (select)
 947                                         e.parentNode.addClassName("Selected");
 948                                 else
 949                                         e.parentNode.removeClassName("Selected");
 950                         });
 951                 },
 952                 selectActions: function(select) {
 953                         $$("#filterDlg_Actions input[type=checkbox]").each(function(e) {
 954                                 e.checked = select;
 955
 956                                 if (select)
 957                                         e.parentNode.addClassName("Selected");
 958                                 else
 959                                         e.parentNode.removeClassName("Selected");
 960
 961                         });
 962                 },
 963                 editRule: function(e) {
 964                         const li = e.parentNode;
 965                         const rule = li.getElementsByTagName("INPUT")[1].value;
 966                         addFilterRule(li, rule);
 967                 },
 968                 editAction: function(e) {
 969                         const li = e.parentNode;
 970                         const action = li.getElementsByTagName("INPUT")[1].value;
 971                         addFilterAction(li, action);
 972                 },
 973                 addAction: function() { addFilterAction(); },
 974                 addRule: function() { addFilterRule(); },
 975                 deleteAction: function() {
 976                         $$("#filterDlg_Actions li[class*=Selected]").each(function(e) { e.parentNode.removeChild(e) });
 977                 },
 978                 deleteRule: function() {
 979                         $$("#filterDlg_Matches li[class*=Selected]").each(function(e) { e.parentNode.removeChild(e) });
 980                 },
 981                 execute: function() {
 982                         if (this.validate()) {
 983
 984                                 const query = dojo.formToQuery("filter_new_form");
 985
 986                                 console.log(query);
 987
 988                                 new Ajax.Request("backend.php", {
 989                                         parameters: query,
 990                                         onComplete: function (transport) {
 991                                                 if (inPreferences()) {
 992                                                         updateFilterList();
 993                                                 }
 994
 995                                                 dialog.hide();
 996                                 } });
 997                         }
 998                 },
 999                 href: query});
1000
1001         if (!inPreferences()) {
1002                 const selectedText = getSelectionText();
1003
1004                 var lh = dojo.connect(dialog, "onLoad", function(){
1005                         dojo.disconnect(lh);
1006
1007                         if (selectedText != "") {
1008
1009                                 const feed_id = activeFeedIsCat() ? 'CAT:' + parseInt(getActiveFeedId()) :
1010                                         getActiveFeedId();
1011
1012                                 const rule = { reg_exp: selectedText, feed_id: [feed_id], filter_type: 1 };
1013
1014                                 addFilterRule(null, dojo.toJson(rule));
1015
1016                         } else {
1017
1018                                 const query = "op=rpc&method=getlinktitlebyid&id=" + getActiveArticleId();
1019
1020                                 new Ajax.Request("backend.php", {
1021                                 parameters: query,
1022                                 onComplete: function(transport) {
1023                                         const reply = JSON.parse(transport.responseText);
1024
1025                                         let title = false;
1026
1027                                         if (reply && reply.title) title = reply.title;
1028
1029                                         if (title || getActiveFeedId() || activeFeedIsCat()) {
1030
1031                                                 console.log(title + " " + getActiveFeedId());
1032
1033                                                 const feed_id = activeFeedIsCat() ? 'CAT:' + parseInt(getActiveFeedId()) :
1034                                                         getActiveFeedId();
1035
1036                                                 const rule = { reg_exp: title, feed_id: [feed_id], filter_type: 1 };
1037
1038                                                 addFilterRule(null, dojo.toJson(rule));
1039                                         }
1040
1041                                 } });
1042
1043                         }
1044
1045                 });
1046         }
1047
1048         dialog.show();
1049
1050 }
1051
1052 function unsubscribeFeed(feed_id, title) {
1053
1054         const msg = __("Unsubscribe from %s?").replace("%s", title);
1055
1056         if (title == undefined || confirm(msg)) {
1057                 notify_progress("Removing feed...");
1058
1059                 const query = "?op=pref-feeds&quiet=1&method=remove&ids=" + feed_id;
1060
1061                 new Ajax.Request("backend.php", {
1062                         parameters: query,
1063                         onComplete: function(transport) {
1064
1065                                         if (dijit.byId("feedEditDlg")) dijit.byId("feedEditDlg").hide();
1066
1067                                         if (inPreferences()) {
1068                                                 updateFeedList();
1069                                         } else {
1070                                                 if (feed_id == getActiveFeedId())
1071                                                         setTimeout(function() { viewfeed({feed:-5}) }, 100);
1072
1073                                                 if (feed_id < 0) updateFeedList();
1074                                         }
1075
1076                                 } });
1077         }
1078
1079         return false;
1080 }
1081
1082
1083 function backend_sanity_check_callback(transport) {
1084
1085         if (sanity_check_done) {
1086                 fatalError(11, "Sanity check request received twice. This can indicate "+
1087                   "presence of Firebug or some other disrupting extension. "+
1088                         "Please disable it and try again.");
1089                 return;
1090         }
1091
1092         const reply = JSON.parse(transport.responseText);
1093
1094         if (!reply) {
1095                 fatalError(3, "Sanity check: invalid RPC reply", transport.responseText);
1096                 return;
1097         }
1098
1099         const error_code = reply['error']['code'];
1100
1101         if (error_code && error_code != 0) {
1102                 return fatalError(error_code, reply['error']['message']);
1103         }
1104
1105         console.log("sanity check ok");
1106
1107         const params = reply['init-params'];
1108
1109         if (params) {
1110                 console.log('reading init-params...');
1111
1112                 for (const k in params) {
1113                         console.log("IP: " + k + " => " + JSON.stringify(params[k]));
1114                         if (k == "label_base_index") _label_base_index = parseInt(params[k]);
1115                 }
1116
1117                 init_params = params;
1118
1119                 // PluginHost might not be available on non-index pages
1120                 window.PluginHost && PluginHost.run(PluginHost.HOOK_PARAMS_LOADED, init_params);
1121         }
1122
1123         sanity_check_done = true;
1124
1125         init_second_stage();
1126
1127 }
1128
1129 function genUrlChangeKey(feed, is_cat) {
1130         const ok = confirm(__("Generate new syndication address for this feed?"));
1131
1132         if (ok) {
1133
1134                 notify_progress("Trying to change address...", true);
1135
1136                 const query = "?op=pref-feeds&method=regenFeedKey&id=" + param_escape(feed) +
1137                         "&is_cat=" + param_escape(is_cat);
1138
1139                 new Ajax.Request("backend.php", {
1140                         parameters: query,
1141                         onComplete: function(transport) {
1142                                         const reply = JSON.parse(transport.responseText);
1143                                         const new_link = reply.link;
1144
1145                                         const e = $('gen_feed_url');
1146
1147                                         if (new_link) {
1148
1149                                                 e.innerHTML = e.innerHTML.replace(/\&amp;key=.*$/,
1150                                                         "&amp;key=" + new_link);
1151
1152                                                 e.href = e.href.replace(/\&key=.*$/,
1153                                                         "&key=" + new_link);
1154
1155                                                 new Effect.Highlight(e);
1156
1157                                                 notify('');
1158
1159                                         } else {
1160                                                 notify_error("Could not change feed URL.");
1161                                         }
1162                         } });
1163         }
1164         return false;
1165 }
1166
1167 // mode = all, none, invert
1168 function selectTableRows(id, mode) {
1169         const rows = $(id).rows;
1170
1171         for (let i = 0; i < rows.length; i++) {
1172                 const row = rows[i];
1173                 let cb = false;
1174                 let dcb = false;
1175
1176                 if (row.id && row.className) {
1177                         const bare_id = row.id.replace(/^[A-Z]*?-/, "");
1178                         const inputs = rows[i].getElementsByTagName("input");
1179
1180                         for (let j = 0; j < inputs.length; j++) {
1181                                 const input = inputs[j];
1182
1183                                 if (input.getAttribute("type") == "checkbox" &&
1184                                                 input.id.match(bare_id)) {
1185
1186                                         cb = input;
1187                                         dcb = dijit.getEnclosingWidget(cb);
1188                                         break;
1189                                 }
1190                         }
1191
1192                         if (cb || dcb) {
1193                                 const issel = row.hasClassName("Selected");
1194
1195                                 if (mode == "all" && !issel) {
1196                                         row.addClassName("Selected");
1197                                         cb.checked = true;
1198                                         if (dcb) dcb.set("checked", true);
1199                                 } else if (mode == "none" && issel) {
1200                                         row.removeClassName("Selected");
1201                                         cb.checked = false;
1202                                         if (dcb) dcb.set("checked", false);
1203
1204                                 } else if (mode == "invert") {
1205
1206                                         if (issel) {
1207                                                 row.removeClassName("Selected");
1208                                                 cb.checked = false;
1209                                                 if (dcb) dcb.set("checked", false);
1210                                         } else {
1211                                                 row.addClassName("Selected");
1212                                                 cb.checked = true;
1213                                                 if (dcb) dcb.set("checked", true);
1214                                         }
1215                                 }
1216                         }
1217                 }
1218         }
1219
1220 }
1221
1222 function getSelectedTableRowIds(id) {
1223         const rows = [];
1224
1225         const elem_rows = $(id).rows;
1226
1227         for (let i = 0; i < elem_rows.length; i++) {
1228                 if (elem_rows[i].hasClassName("Selected")) {
1229                         const bare_id = elem_rows[i].id.replace(/^[A-Z]*?-/, "");
1230                         rows.push(bare_id);
1231                 }
1232         }
1233
1234         return rows;
1235 }
1236
1237 function editFeed(feed) {
1238         if (feed <= 0)
1239                 return alert(__("You can't edit this kind of feed."));
1240
1241         const query = "backend.php?op=pref-feeds&method=editfeed&id=" +
1242                 param_escape(feed);
1243
1244         console.log(query);
1245
1246         if (dijit.byId("filterEditDlg"))
1247                 dijit.byId("filterEditDlg").destroyRecursive();
1248
1249         if (dijit.byId("feedEditDlg"))
1250                 dijit.byId("feedEditDlg").destroyRecursive();
1251
1252         const dialog = new dijit.Dialog({
1253                 id: "feedEditDlg",
1254                 title: __("Edit Feed"),
1255                 style: "width: 600px",
1256                 execute: function() {
1257                         if (this.validate()) {
1258 //                                      console.log(dojo.objectToQuery(this.attr('value')));
1259
1260                                 notify_progress("Saving data...", true);
1261
1262                                 new Ajax.Request("backend.php", {
1263                                         parameters: dojo.objectToQuery(dialog.attr('value')),
1264                                         onComplete: function(transport) {
1265                                                 dialog.hide();
1266                                                 notify('');
1267                                                 updateFeedList();
1268                                 }});
1269                         }
1270                 },
1271                 href: query});
1272
1273         dialog.show();
1274 }
1275
1276 function feedBrowser() {
1277         const query = "backend.php?op=feeds&method=feedBrowser";
1278
1279         if (dijit.byId("feedAddDlg"))
1280                 dijit.byId("feedAddDlg").hide();
1281
1282         if (dijit.byId("feedBrowserDlg"))
1283                 dijit.byId("feedBrowserDlg").destroyRecursive();
1284
1285         const dialog = new dijit.Dialog({
1286                 id: "feedBrowserDlg",
1287                 title: __("More Feeds"),
1288                 style: "width: 600px",
1289                 getSelectedFeedIds: function () {
1290                         const list = $$("#browseFeedList li[id*=FBROW]");
1291                         const selected = [];
1292
1293                         list.each(function (child) {
1294                                 const id = child.id.replace("FBROW-", "");
1295
1296                                 if (child.hasClassName('Selected')) {
1297                                         selected.push(id);
1298                                 }
1299                         });
1300
1301                         return selected;
1302                 },
1303                 getSelectedFeeds: function () {
1304                         const list = $$("#browseFeedList li.Selected");
1305                         const selected = [];
1306
1307                         list.each(function (child) {
1308                                 const title = child.getElementsBySelector("span.fb_feedTitle")[0].innerHTML;
1309                                 const url = child.getElementsBySelector("a.fb_feedUrl")[0].href;
1310
1311                                 selected.push([title, url]);
1312
1313                         });
1314
1315                         return selected;
1316                 },
1317
1318                 subscribe: function () {
1319                         const mode = this.attr('value').mode;
1320                         let selected = [];
1321
1322                         if (mode == "1")
1323                                 selected = this.getSelectedFeeds();
1324                         else
1325                                 selected = this.getSelectedFeedIds();
1326
1327                         if (selected.length > 0) {
1328                                 dijit.byId("feedBrowserDlg").hide();
1329
1330                                 notify_progress("Loading, please wait...", true);
1331
1332                                 // we use dojo.toJson instead of JSON.stringify because
1333                                 // it somehow escapes everything TWICE, at least in Chrome 9
1334
1335                                 const query = "?op=rpc&method=massSubscribe&payload=" +
1336                                         param_escape(dojo.toJson(selected)) + "&mode=" + param_escape(mode);
1337
1338                                 console.log(query);
1339
1340                                 new Ajax.Request("backend.php", {
1341                                         parameters: query,
1342                                         onComplete: function (transport) {
1343                                                 notify('');
1344                                                 updateFeedList();
1345                                         }
1346                                 });
1347
1348                         } else {
1349                                 alert(__("No feeds are selected."));
1350                         }
1351
1352                 },
1353                 update: function () {
1354                         const query = dojo.objectToQuery(dialog.attr('value'));
1355
1356                         Element.show('feed_browser_spinner');
1357
1358                         new Ajax.Request("backend.php", {
1359                                 parameters: query,
1360                                 onComplete: function (transport) {
1361                                         notify('');
1362
1363                                         Element.hide('feed_browser_spinner');
1364
1365                                         const reply = JSON.parse(transport.responseText);
1366                                         const mode = reply['mode'];
1367
1368                                         if ($("browseFeedList") && reply['content']) {
1369                         $("browseFeedList").innerHTML = reply['content'];
1370                                         }
1371
1372                                         dojo.parser.parse("browseFeedList");
1373
1374                                         if (mode == 2) {
1375                                                 Element.show(dijit.byId('feed_archive_remove').domNode);
1376                                         } else {
1377                                                 Element.hide(dijit.byId('feed_archive_remove').domNode);
1378                                         }
1379
1380                                 }
1381                         });
1382                 },
1383                 removeFromArchive: function () {
1384                         const selected = this.getSelectedFeedIds();
1385
1386                         if (selected.length > 0) {
1387
1388                                 const pr = __("Remove selected feeds from the archive? Feeds with stored articles will not be removed.");
1389
1390                                 if (confirm(pr)) {
1391                                         Element.show('feed_browser_spinner');
1392
1393                                         const query = "?op=rpc&method=remarchive&ids=" +
1394                                                 param_escape(selected.toString());
1395
1396
1397                                         new Ajax.Request("backend.php", {
1398                                                 parameters: query,
1399                                                 onComplete: function (transport) {
1400                                                         dialog.update();
1401                                                 }
1402                                         });
1403                                 }
1404                         }
1405                 },
1406                 execute: function () {
1407                         if (this.validate()) {
1408                                 this.subscribe();
1409                         }
1410                 },
1411                 href: query
1412         });
1413
1414         dialog.show();
1415 }
1416
1417 function showFeedsWithErrors() {
1418         const query = "backend.php?op=pref-feeds&method=feedsWithErrors";
1419
1420         if (dijit.byId("errorFeedsDlg"))
1421                 dijit.byId("errorFeedsDlg").destroyRecursive();
1422
1423         const dialog = new dijit.Dialog({
1424                 id: "errorFeedsDlg",
1425                 title: __("Feeds with update errors"),
1426                 style: "width: 600px",
1427                 getSelectedFeeds: function() {
1428                         return getSelectedTableRowIds("prefErrorFeedList");
1429                 },
1430                 removeSelected: function() {
1431                         const sel_rows = this.getSelectedFeeds();
1432
1433                         console.log(sel_rows);
1434
1435                         if (sel_rows.length > 0) {
1436                                 const ok = confirm(__("Remove selected feeds?"));
1437
1438                                 if (ok) {
1439                                         notify_progress("Removing selected feeds...", true);
1440
1441                                         const query = "?op=pref-feeds&method=remove&ids="+
1442                                                 param_escape(sel_rows.toString());
1443
1444                                         new Ajax.Request("backend.php", {
1445                                                 parameters: query,
1446                                                 onComplete: function(transport) {
1447                                                         notify('');
1448                                                         dialog.hide();
1449                                                         updateFeedList();
1450                                                 } });
1451                                 }
1452
1453                         } else {
1454                                 alert(__("No feeds are selected."));
1455                         }
1456                 },
1457                 execute: function() {
1458                         if (this.validate()) {
1459                         }
1460                 },
1461                 href: query});
1462
1463         dialog.show();
1464 }
1465
1466 function get_timestamp() {
1467         const date = new Date();
1468         return Math.round(date.getTime() / 1000);
1469 }
1470
1471 function helpDialog(topic) {
1472         const query = "backend.php?op=backend&method=help&topic=" + param_escape(topic);
1473
1474         if (dijit.byId("helpDlg"))
1475                 dijit.byId("helpDlg").destroyRecursive();
1476
1477         const dialog = new dijit.Dialog({
1478                 id: "helpDlg",
1479                 title: __("Help"),
1480                 style: "width: 600px",
1481                 href: query,
1482         });
1483
1484         dialog.show();
1485 }
1486
1487 function htmlspecialchars_decode (string, quote_style) {
1488   // http://kevin.vanzonneveld.net
1489   // +   original by: Mirek Slugen
1490   // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
1491   // +   bugfixed by: Mateusz "loonquawl" Zalega
1492   // +      input by: ReverseSyntax
1493   // +      input by: Slawomir Kaniecki
1494   // +      input by: Scott Cariss
1495   // +      input by: Francois
1496   // +   bugfixed by: Onno Marsman
1497   // +    revised by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
1498   // +   bugfixed by: Brett Zamir (http://brett-zamir.me)
1499   // +      input by: Ratheous
1500   // +      input by: Mailfaker (http://www.weedem.fr/)
1501   // +      reimplemented by: Brett Zamir (http://brett-zamir.me)
1502   // +    bugfixed by: Brett Zamir (http://brett-zamir.me)
1503   // *     example 1: htmlspecialchars_decode("<p>this -&gt; &quot;</p>", 'ENT_NOQUOTES');
1504   // *     returns 1: '<p>this -> &quot;</p>'
1505   // *     example 2: htmlspecialchars_decode("&amp;quot;");
1506   // *     returns 2: '&quot;'
1507   let optTemp = 0,
1508     i = 0,
1509     noquotes = false;
1510   if (typeof quote_style === 'undefined') {
1511     quote_style = 2;
1512   }
1513   string = string.toString().replace(/&lt;/g, '<').replace(/&gt;/g, '>');
1514   const OPTS = {
1515     'ENT_NOQUOTES': 0,
1516     'ENT_HTML_QUOTE_SINGLE': 1,
1517     'ENT_HTML_QUOTE_DOUBLE': 2,
1518     'ENT_COMPAT': 2,
1519     'ENT_QUOTES': 3,
1520     'ENT_IGNORE': 4
1521   };
1522   if (quote_style === 0) {
1523     noquotes = true;
1524   }
1525   if (typeof quote_style !== 'number') { // Allow for a single string or an array of string flags
1526     quote_style = [].concat(quote_style);
1527     for (i = 0; i < quote_style.length; i++) {
1528       // Resolve string input to bitwise e.g. 'PATHINFO_EXTENSION' becomes 4
1529       if (OPTS[quote_style[i]] === 0) {
1530         noquotes = true;
1531       } else if (OPTS[quote_style[i]]) {
1532         optTemp = optTemp | OPTS[quote_style[i]];
1533       }
1534     }
1535     quote_style = optTemp;
1536   }
1537   if (quote_style & OPTS.ENT_HTML_QUOTE_SINGLE) {
1538     string = string.replace(/&#0*39;/g, "'"); // PHP doesn't currently escape if more than one 0, but it should
1539     // string = string.replace(/&apos;|&#x0*27;/g, "'"); // This would also be useful here, but not a part of PHP
1540   }
1541   if (!noquotes) {
1542     string = string.replace(/&quot;/g, '"');
1543   }
1544   // Put this in last place to avoid escape being double-decoded
1545   string = string.replace(/&amp;/g, '&');
1546
1547   return string;
1548 }
1549
1550
1551 function label_to_feed_id(label) {
1552         return _label_base_index - 1 - Math.abs(label);
1553 }
1554
1555 function feed_to_label_id(feed) {
1556         return _label_base_index - 1 + Math.abs(feed);
1557 }
1558
1559 // http://stackoverflow.com/questions/6251937/how-to-get-selecteduser-highlighted-text-in-contenteditable-element-and-replac
1560
1561 function getSelectionText() {
1562         let text = "";
1563
1564         if (typeof window.getSelection != "undefined") {
1565                 const sel = window.getSelection();
1566                 if (sel.rangeCount) {
1567                         const container = document.createElement("div");
1568                         for (let i = 0, len = sel.rangeCount; i < len; ++i) {
1569                                 container.appendChild(sel.getRangeAt(i).cloneContents());
1570                         }
1571                         text = container.innerHTML;
1572                 }
1573         } else if (typeof document.selection != "undefined") {
1574                 if (document.selection.type == "Text") {
1575                         text = document.selection.createRange().textText;
1576                 }
1577         }
1578
1579         return text.stripTags();
1580 }
1581
1582 function openUrlPopup(url) {
1583         const w = window.open("");
1584
1585         w.opener = null;
1586         w.location = url;
1587 }
1588 function openArticlePopup(id) {
1589         const w = window.open("",
1590                 "ttrss_article_popup",
1591                 "height=900,width=900,resizable=yes,status=no,location=no,menubar=no,directories=no,scrollbars=yes,toolbar=no");
1592
1593         w.opener = null;
1594         w.location = "backend.php?op=article&method=view&mode=raw&html=1&zoom=1&id=" + id + "&csrf_token=" + getInitParam("csrf_token");
1595 }