ajax: improved error messages for failed ajax calls.

rhodecode/public/js/src/rhodecode/codemirror.js

@@ -1,594 +1,595 b''
 // # Copyright (C) 2010-2017 RhodeCode GmbH
 // #
 // # This program is free software: you can redistribute it and/or modify
 // # it under the terms of the GNU Affero General Public License, version 3
 // # (only), as published by the Free Software Foundation.
 // #
 // # This program is distributed in the hope that it will be useful,
 // # but WITHOUT ANY WARRANTY; without even the implied warranty of
 // # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 // # GNU General Public License for more details.
 // #
 // # You should have received a copy of the GNU Affero General Public License
 // # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 // #
 // # This program is dual-licensed. If you wish to learn more about the
 // # RhodeCode Enterprise Edition, including its added features, Support services,
 // # and proprietary license terms, please see https://rhodecode.com/licenses/
 
 /**
  * Code Mirror
  */
 // global code-mirror logger;, to enable run
 // Logger.get('CodeMirror').setLevel(Logger.DEBUG)
 
 cmLog = Logger.get('CodeMirror');
 cmLog.setLevel(Logger.OFF);
 
 
 //global cache for inline forms
 var userHintsCache = {};
 
 // global timer, used to cancel async loading
 var CodeMirrorLoadUserHintTimer;
 
 var escapeRegExChars = function(value) {
   return value.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, "\\$&");
 };
 
 /**
  * Load hints from external source returns an array of objects in a format
  * that hinting lib requires
  * @returns {Array}
  */
 var CodeMirrorLoadUserHints = function(query, triggerHints) {
   cmLog.debug('Loading mentions users via AJAX');
   var _users = [];
   $.ajax({
     type: 'GET',
     data: {query: query},
     url: pyroutes.url('user_autocomplete_data'),
     headers: {'X-PARTIAL-XHR': true},
     async: true
   })
   .done(function(data) {
     var tmpl = '<img class="gravatar" src="{0}"/>{1}';
     $.each(data.suggestions, function(i) {
       var userObj = data.suggestions[i];
 
       if (userObj.username !== "default") {
         _users.push({
           text: userObj.username + " ",
           org_text: userObj.username,
           displayText: userObj.value_display, // search that field
           // internal caches
           _icon_link: userObj.icon_link,
           _text: userObj.value_display,
 
           render: function(elt, data, completion) {
             var el = document.createElement('div');
             el.className = "CodeMirror-hint-entry";
             el.innerHTML = tmpl.format(
                 completion._icon_link, completion._text);
             elt.appendChild(el);
           }
         });
       }
     });
     cmLog.debug('Mention users loaded');
     // set to global cache
     userHintsCache[query] = _users;
     triggerHints(userHintsCache[query]);
   })
   .fail(function(data, textStatus, xhr) {
-    alert("error processing request: " + textStatus);
+      alert("error processing request. \n" +
+            "Error code {0} ({1}).".format(data.status, data.statusText));
   });
 };
 
 /**
  * filters the results based on the current context
  * @param users
  * @param context
  * @returns {Array}
  */
 var CodeMirrorFilterUsers = function(users, context) {
   var MAX_LIMIT = 10;
   var filtered_users = [];
   var curWord = context.string;
 
   cmLog.debug('Filtering users based on query:', curWord);
   $.each(users, function(i) {
     var match = users[i];
     var searchText = match.displayText;
 
     if (!curWord ||
         searchText.toLowerCase().lastIndexOf(curWord) !== -1) {
       // reset state
       match._text = match.displayText;
       if (curWord) {
         // do highlighting
         var pattern = '(' + escapeRegExChars(curWord) + ')';
         match._text = searchText.replace(
             new RegExp(pattern, 'gi'), '<strong>$1<\/strong>');
       }
 
       filtered_users.push(match);
     }
     // to not return to many results, use limit of filtered results
     if (filtered_users.length > MAX_LIMIT) {
       return false;
     }
   });
 
   return filtered_users;
 };
 
 var CodeMirrorMentionHint = function(editor, callback, options) {
   var cur = editor.getCursor();
   var curLine = editor.getLine(cur.line).slice(0, cur.ch);
 
   // match on @ +1char
   var tokenMatch = new RegExp(
       '(^@| @)([a-zA-Z0-9]{1}[a-zA-Z0-9\-\_\.]*)$').exec(curLine);
 
   var tokenStr = '';
   if (tokenMatch !== null && tokenMatch.length > 0){
     tokenStr = tokenMatch[0].strip();
   } else {
     // skip if we didn't match our token
     return;
   }
 
   var context = {
     start: (cur.ch - tokenStr.length) + 1,
     end: cur.ch,
     string: tokenStr.slice(1),
     type: null
   };
 
   // case when we put the @sign in fron of a string,
   // eg <@ we put it here>sometext then we need to prepend to text
   if (context.end > cur.ch) {
     context.start = context.start + 1; // we add to the @ sign
     context.end = cur.ch; // don't eat front part just append
     context.string = context.string.slice(1, cur.ch - context.start);
   }
 
   cmLog.debug('Mention context', context);
 
   var triggerHints = function(userHints){
     return callback({
       list: CodeMirrorFilterUsers(userHints, context),
       from: CodeMirror.Pos(cur.line, context.start),
       to: CodeMirror.Pos(cur.line, context.end)
     });
   };
 
   var queryBasedHintsCache = undefined;
   // if we have something in the cache, try to fetch the query based cache
   if (userHintsCache !== {}){
     queryBasedHintsCache = userHintsCache[context.string];
   }
 
   if (queryBasedHintsCache !== undefined) {
     cmLog.debug('Users loaded from cache');
     triggerHints(queryBasedHintsCache);
   } else {
     // this takes care for async loading, and then displaying results
     // and also propagates the userHintsCache
     window.clearTimeout(CodeMirrorLoadUserHintTimer);
     CodeMirrorLoadUserHintTimer = setTimeout(function() {
       CodeMirrorLoadUserHints(context.string, triggerHints);
     }, 300);
   }
 };
 
 var CodeMirrorCompleteAfter = function(cm, pred) {
   var options = {
     completeSingle: false,
     async: true,
     closeOnUnfocus: true
   };
   var cur = cm.getCursor();
   setTimeout(function() {
     if (!cm.state.completionActive) {
       cmLog.debug('Trigger mentions hinting');
       CodeMirror.showHint(cm, CodeMirror.hint.mentions, options);
     }
   }, 100);
 
   // tell CodeMirror we didn't handle the key
   // trick to trigger on a char but still complete it
   return CodeMirror.Pass;
 };
 
 var initCodeMirror = function(textAreadId, resetUrl, focus, options) {
   var ta = $('#' + textAreadId).get(0);
   if (focus === undefined) {
       focus = true;
   }
 
   // default options
   var codeMirrorOptions = {
     mode: "null",
     lineNumbers: true,
     indentUnit: 4,
     autofocus: focus
   };
 
   if (options !== undefined) {
     // extend with custom options
     codeMirrorOptions = $.extend(true, codeMirrorOptions, options);
   }
 
   var myCodeMirror = CodeMirror.fromTextArea(ta, codeMirrorOptions);
 
   $('#reset').on('click', function(e) {
     window.location = resetUrl;
   });
 
   return myCodeMirror;
 };
 
 var initCommentBoxCodeMirror = function(CommentForm, textAreaId, triggerActions){
   var initialHeight = 100;
 
   if (typeof userHintsCache === "undefined") {
     userHintsCache = {};
     cmLog.debug('Init empty cache for mentions');
   }
   if (!$(textAreaId).get(0)) {
     cmLog.debug('Element for textarea not found', textAreaId);
     return;
   }
     /**
      * Filter action based on typed in text
      * @param actions
      * @param context
      * @returns {Array}
      */
 
     var filterActions = function(actions, context){
 
       var MAX_LIMIT = 10;
       var filtered_actions = [];
       var curWord = context.string;
 
       cmLog.debug('Filtering actions based on query:', curWord);
       $.each(actions, function(i) {
         var match = actions[i];
         var searchText = match.searchText;
 
         if (!curWord ||
           searchText.toLowerCase().lastIndexOf(curWord) !== -1) {
           // reset state
           match._text = match.displayText;
           if (curWord) {
             // do highlighting
             var pattern = '(' + escapeRegExChars(curWord) + ')';
             match._text = searchText.replace(
               new RegExp(pattern, 'gi'), '<strong>$1<\/strong>');
           }
 
           filtered_actions.push(match);
         }
         // to not return to many results, use limit of filtered results
         if (filtered_actions.length > MAX_LIMIT) {
             return false;
         }
       });
 
       return filtered_actions;
     };
 
     var submitForm = function(cm, pred) {
       $(cm.display.input.textarea.form).submit();
       return CodeMirror.Pass;
     };
 
     var completeActions = function(actions){
 
         var registeredActions = [];
         var allActions = [
         {
           text: "approve",
           searchText: "status approved",
           displayText: _gettext('Set status to Approved'),
           hint: function(CodeMirror, data, completion) {
             CodeMirror.replaceRange("", completion.from || data.from,
                         completion.to || data.to, "complete");
             $(CommentForm.statusChange).select2("val", 'approved').trigger('change');
           },
           render: function(elt, data, completion) {
             var el = document.createElement('div');
             el.className = "flag_status flag_status_comment_box approved pull-left";
             elt.appendChild(el);
 
             el = document.createElement('span');
             el.innerHTML = completion.displayText;
             elt.appendChild(el);
           }
         },
         {
           text: "reject",
           searchText: "status rejected",
           displayText: _gettext('Set status to Rejected'),
           hint: function(CodeMirror, data, completion) {
               CodeMirror.replaceRange("", completion.from || data.from,
                           completion.to || data.to, "complete");
               $(CommentForm.statusChange).select2("val", 'rejected').trigger('change');
           },
           render: function(elt, data, completion) {
               var el = document.createElement('div');
               el.className = "flag_status flag_status_comment_box rejected pull-left";
               elt.appendChild(el);
 
               el = document.createElement('span');
               el.innerHTML = completion.displayText;
               elt.appendChild(el);
           }
         },
         {
           text: "as_todo",
           searchText: "todo comment",
           displayText: _gettext('TODO comment'),
           hint: function(CodeMirror, data, completion) {
               CodeMirror.replaceRange("", completion.from || data.from,
                           completion.to || data.to, "complete");
 
               $(CommentForm.commentType).val('todo');
           },
           render: function(elt, data, completion) {
               var el = document.createElement('div');
               el.className = "pull-left";
               elt.appendChild(el);
 
               el = document.createElement('span');
               el.innerHTML = completion.displayText;
               elt.appendChild(el);
           }
         },
         {
           text: "as_note",
           searchText: "note comment",
           displayText: _gettext('Note Comment'),
           hint: function(CodeMirror, data, completion) {
               CodeMirror.replaceRange("", completion.from || data.from,
                           completion.to || data.to, "complete");
 
               $(CommentForm.commentType).val('note');
           },
           render: function(elt, data, completion) {
               var el = document.createElement('div');
               el.className = "pull-left";
               elt.appendChild(el);
 
               el = document.createElement('span');
               el.innerHTML = completion.displayText;
               elt.appendChild(el);
           }
         }
         ];
 
         $.each(allActions, function(index, value){
             var actionData = allActions[index];
             if (actions.indexOf(actionData['text']) != -1) {
                 registeredActions.push(actionData);
             }
         });
 
         return function(cm, pred) {
             var cur = cm.getCursor();
             var options = {
                 closeOnUnfocus: true,
                 registeredActions: registeredActions
             };
             setTimeout(function() {
                 if (!cm.state.completionActive) {
                     cmLog.debug('Trigger actions hinting');
                     CodeMirror.showHint(cm, CodeMirror.hint.actions, options);
                 }
             }, 100);
 
             // tell CodeMirror we didn't handle the key
             // trick to trigger on a char but still complete it
             return CodeMirror.Pass;
         }
     };
 
     var extraKeys = {
       "'@'": CodeMirrorCompleteAfter,
       Tab: function(cm) {
         // space indent instead of TABS
         var spaces = new Array(cm.getOption("indentUnit") + 1).join(" ");
         cm.replaceSelection(spaces);
       }
     };
     // submit form on Meta-Enter
     if (OSType === "mac") {
       extraKeys["Cmd-Enter"] = submitForm;
     }
     else {
       extraKeys["Ctrl-Enter"] = submitForm;
     }
 
     if (triggerActions) {
       // register triggerActions for this instance
       extraKeys["'/'"] = completeActions(triggerActions);
     }
 
     var cm = CodeMirror.fromTextArea($(textAreaId).get(0), {
       lineNumbers: false,
       indentUnit: 4,
       viewportMargin: 30,
       // this is a trick to trigger some logic behind codemirror placeholder
       // it influences styling and behaviour.
       placeholder: " ",
       extraKeys: extraKeys,
       lineWrapping: true
     });
 
     cm.setSize(null, initialHeight);
     cm.setOption("mode", DEFAULT_RENDERER);
     CodeMirror.autoLoadMode(cm, DEFAULT_RENDERER); // load rst or markdown mode
     cmLog.debug('Loading codemirror mode', DEFAULT_RENDERER);
     // start listening on changes to make auto-expanded editor
     cm.on("change", function(self) {
       var height = initialHeight;
       var lines = self.lineCount();
       if ( lines > 6 && lines < 20) {
         height = "auto";
       }
       else if (lines >= 20){
         zheight = 20*15;
       }
       self.setSize(null, height);
     });
 
     var actionHint = function(editor, options) {
 
       var cur = editor.getCursor();
       var curLine = editor.getLine(cur.line).slice(0, cur.ch);
 
       // match  only on /+1 character minimum
       var tokenMatch = new RegExp('(^/\|/\)([a-zA-Z]*)$').exec(curLine);
 
       var tokenStr = '';
       if (tokenMatch !== null && tokenMatch.length > 0){
         tokenStr = tokenMatch[2].strip();
       }
 
       var context = {
         start: (cur.ch - tokenStr.length) - 1,
         end: cur.ch,
         string: tokenStr,
         type: null
       };
 
       return {
         list: filterActions(options.registeredActions, context),
         from: CodeMirror.Pos(cur.line, context.start),
         to: CodeMirror.Pos(cur.line, context.end)
       };
 
     };
     CodeMirror.registerHelper("hint", "mentions", CodeMirrorMentionHint);
     CodeMirror.registerHelper("hint", "actions", actionHint);
     return cm;
 };
 
 var setCodeMirrorMode = function(codeMirrorInstance, mode) {
   CodeMirror.autoLoadMode(codeMirrorInstance, mode);
   codeMirrorInstance.setOption("mode", mode);
 };
 
 var setCodeMirrorLineWrap = function(codeMirrorInstance, line_wrap) {
   codeMirrorInstance.setOption("lineWrapping", line_wrap);
 };
 
 var setCodeMirrorModeFromSelect = function(
   targetSelect, targetFileInput, codeMirrorInstance, callback){
 
   $(targetSelect).on('change', function(e) {
     cmLog.debug('codemirror select2 mode change event !');
     var selected = e.currentTarget;
     var node = selected.options[selected.selectedIndex];
     var mimetype = node.value;
     cmLog.debug('picked mimetype', mimetype);
     var new_mode = $(node).attr('mode');
     setCodeMirrorMode(codeMirrorInstance, new_mode);
     cmLog.debug('set new mode', new_mode);
 
     //propose filename from picked mode
     cmLog.debug('setting mimetype', mimetype);
     var proposed_ext = getExtFromMimeType(mimetype);
     cmLog.debug('file input', $(targetFileInput).val());
     var file_data = getFilenameAndExt($(targetFileInput).val());
     var filename = file_data.filename || 'filename1';
     $(targetFileInput).val(filename + proposed_ext);
     cmLog.debug('proposed file', filename + proposed_ext);
 
 
     if (typeof(callback) === 'function') {
       try {
         cmLog.debug('running callback', callback);
         callback(filename, mimetype, new_mode);
       } catch (err) {
         console.log('failed to run callback', callback, err);
       }
     }
     cmLog.debug('finish iteration...');
   });
 };
 
 var setCodeMirrorModeFromInput = function(
   targetSelect, targetFileInput, codeMirrorInstance, callback) {
 
   // on type the new filename set mode
   $(targetFileInput).on('keyup', function(e) {
     var file_data = getFilenameAndExt(this.value);
     if (file_data.ext === null) {
       return;
     }
 
     var mimetypes = getMimeTypeFromExt(file_data.ext, true);
     cmLog.debug('mimetype from file', file_data, mimetypes);
     var detected_mode;
     var detected_option;
     for (var i in mimetypes) {
       var mt = mimetypes[i];
       if (!detected_mode) {
         detected_mode = detectCodeMirrorMode(this.value, mt);
       }
 
       if (!detected_option) {
         cmLog.debug('#mimetype option[value="{0}"]'.format(mt));
         if ($(targetSelect).find('option[value="{0}"]'.format(mt)).length) {
           detected_option = mt;
         }
       }
     }
 
     cmLog.debug('detected mode', detected_mode);
     cmLog.debug('detected option', detected_option);
     if (detected_mode && detected_option){
 
       $(targetSelect).select2("val", detected_option);
       setCodeMirrorMode(codeMirrorInstance, detected_mode);
 
       if(typeof(callback) === 'function'){
         try{
           cmLog.debug('running callback', callback);
           var filename = file_data.filename + "." + file_data.ext;
           callback(filename, detected_option, detected_mode);
         }catch (err){
           console.log('failed to run callback', callback, err);
         }
       }
     }
 
   });
 };
 
 var fillCodeMirrorOptions = function(targetSelect) {
   //inject new modes, based on codeMirrors modeInfo object
   var modes_select = $(targetSelect);
   for (var i = 0; i < CodeMirror.modeInfo.length; i++) {
     var m = CodeMirror.modeInfo[i];
     var opt = new Option(m.name, m.mime);
     $(opt).attr('mode', m.mode);
     modes_select.append(opt);
   }
 };
 
 var CodeMirrorPreviewEnable = function(edit_mode) {
   // in case it a preview enabled mode enable the button
   if (['markdown', 'rst', 'gfm'].indexOf(edit_mode) !== -1) {
     $('#render_preview').removeClass('hidden');
   }
   else {
     if (!$('#render_preview').hasClass('hidden')) {
       $('#render_preview').addClass('hidden');
     }
   }
 };

rhodecode/public/js/src/rhodecode/utils/ajax.js

@@ -1,70 +1,72 b''
 // # Copyright (C) 2010-2017 RhodeCode GmbH
 // #
 // # This program is free software: you can redistribute it and/or modify
 // # it under the terms of the GNU Affero General Public License, version 3
 // # (only), as published by the Free Software Foundation.
 // #
 // # This program is distributed in the hope that it will be useful,
 // # but WITHOUT ANY WARRANTY; without even the implied warranty of
 // # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 // # GNU General Public License for more details.
 // #
 // # You should have received a copy of the GNU Affero General Public License
 // # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 // #
 // # This program is dual-licensed. If you wish to learn more about the
 // # RhodeCode Enterprise Edition, including its added features, Support services,
 // # and proprietary license terms, please see https://rhodecode.com/licenses/
 
 /**
 * turns objects into GET query string
 */
 var toQueryString = function(o) {
   if(typeof o === 'string') {
     return o;
   }
   if(typeof o !== 'object') {
     return false;
   }
   var _p, _qs = [];
   for(_p in o) {
     _qs.push(encodeURIComponent(_p) + '=' + encodeURIComponent(o[_p]));
   }
   return _qs.join('&');
 };
 
 /**
 * ajax call wrappers
 */
 var ajaxGET = function(url, success, failure) {
   var sUrl = url;
   var request = $.ajax({url: sUrl, headers: {'X-PARTIAL-XHR': true}})
   .done(function(data){
     success(data);
   })
   .fail(function(data, textStatus, xhr) {
     if (failure) {
       failure(data, textStatus, xhr);
     } else {
-      alert("error processing request: " + textStatus);
+      alert("Error processing request. \n" +
+            "Error code {0} ({1}).".format(data.status, data.statusText));
     }
   });
   return request;
 };
 var ajaxPOST = function(url, postData, success, failure) {
   var sUrl = url;
   var postData = toQueryString(postData);
   var request = $.ajax({type: 'POST', data: postData, url: sUrl,
     headers: {'X-PARTIAL-XHR': true}})
   .done(function(data){
     success(data);
   })
   .fail(function(data, textStatus, xhr){
     if (failure) {
       failure(data, textStatus, xhr);
     } else {
-      alert("error processing request: " + textStatus);
+      alert("Error processing request. \n" +
+            "Error code {0} ({1}).".format(data.status, data.statusText));
     }
   });
   return request;
 };