Issue 3225 - Make Diagnostics compatible with the upcoming Adblock Plus 2.7 release

chrome/content/watcher.js

 /*
  * This Source Code is subject to the terms of the Mozilla Public License
  * version 2.0 (the "License"). You can obtain a copy of the License at
  * http://mozilla.org/MPL/2.0/.
  */
 
 const Cc = Components.classes;
 const Ci = Components.interfaces;
 const Cr = Components.results;
 const Cu = Components.utils;
 
 Cu.import("resource://gre/modules/Services.jsm");
 
 function abprequire(module)
 {
   let result = {};
   result.wrappedJSObject = result;
   Services.obs.notifyObservers(result, "adblockplus-require", module);
   return result.exports;
 }
 
 let {Policy} = abprequire("contentPolicy");
 let {RequestNotifier} = abprequire("requestNotifier");
 let {Filter} = abprequire("filterClasses");
 
-let policyGlobal = Cu.getGlobalForObject(Policy);
-let PolicyPrivate = null;
-
-if ("PolicyImplementation" in policyGlobal)  // ABP 2.1+ with scope separation
-  PolicyPrivate = policyGlobal.PolicyImplementation;
-else if ("require" in policyGlobal)               // ABP 2.1+ without scope separation
-  PolicyPrivate = policyGlobal.require.scopes.contentPolicy.PolicyImplementation;
-else
+let origShouldAllow = Policy.shouldAllow;
+if (!origShouldAllow)
   window.close();
 
-let origShouldLoad = PolicyPrivate.shouldLoad;
-let origProcessNode = Policy.processNode;
-
 let currentData = null;
 let processingQueue = [];
 let notifier = null;
 
 // Randomize URI to work around bug 719376
 let stringBundle = Services.strings.createBundle("chrome://abpwatcher/locale/global.properties?" + Math.random());
 
 let clipboardHelper = Cc["@mozilla.org/widget/clipboardhelper;1"].getService(Ci.nsIClipboardHelper);
 
 function init()
 {
   let list = document.getElementById("list");
   list.view = treeView;
   list.focus();
 
   treeView.addObserver(updateProcessingTime);
   updateProcessingTime(treeView, "refresh");
 
   // Make sure the tree view has correct filters
-  document.getElementById("ignore-early").doCommand();
   document.getElementById("filterText").doCommand();
 
   notifier = new RequestNotifier(null, handleFilterHit);

[Wladimir Palant, 2015/12/07 12:17:55]

I realized that I didn't test the Filter column - this wasn't actually working.
RequestNotifier no longer supports null as parameter that used to mean "track
all windows." Luckily, using RequestNotifier isn't even necessary - the result
of the shouldAllow call already contains all the hits. So the new patchsets
extracts the filters from this data structure now.

 
-  PolicyPrivate.shouldLoad = replacementShouldLoad;
-  Policy.processNode = replacementProcessNode;
+  Policy.shouldAllow = replacementShouldAllow;
   setInterval(processQueue, 200);
 }
 
 function E(id)
 {
   return document.getElementById(id);
 }
 
-function replacementShouldLoad(contentType, contentLocation, requestOrigin, node, mimeTypeGuess, extra)
+function replacementShouldAllow({contentType, location, frames, isPrivate})
 {
   let startTime = null;
   try
   {
-    currentData = {internal: false, earlyReturn: true, filters: []};
+    currentData = {
+      filters: [],
+      type: contentType,
+      location: location,
+      frames: frames,
+      isPrivate: isPrivate
+    };
     startTime = Date.now();
-
-    if (contentLocation)
-      currentData.location = contentLocation.spec;
-    if (requestOrigin)
-      currentData.origin = requestOrigin.spec;
-
-    currentData.type = contentType;
-  } catch(e) {}
-
-  let ret;
-  try
-  {
-    ret = origShouldLoad.apply(this, arguments);
-    return ret;
-  }
-  finally
-  {
-    if (startTime !== null)
-      currentData.processingTime = (Date.now() - startTime);
-    currentData.result = (ret == Ci.nsIContentPolicy.ACCEPT);
-
-    processingQueue.push(currentData);
-    currentData = null;
-  }
-}
-
-function replacementProcessNode(wnd, node, contentType, location, collapse)
-{
-  let startTime = null;
-  try
-  {
-    if (currentData && !("context" in currentData))
-    {
-      currentData.earlyReturn = false;
-      currentData.context = node;
-      currentData.window = wnd;
-      currentData.internalType = contentType;
-      if (location)
-          currentData.internalLocation = location.spec;
-    }
-    else
-    {
-      // shouldLoad wasn't called - this isn't being called by content policy
-      let locationString = (location instanceof Filter ? location.text : location.spec);
-
-      currentData = {
-        internal: true,
-        earlyReturn: false,
-        filters: [],
-        location: locationString,
-        internalLocation: locationString,
-        context: node,
-        window: wnd,
-        type: contentType,
-        internalType: contentType
-      };
-      startTime = Date.now();
-    }
   }
   catch(e)
   {
     Cu.reportError(e);
   }
 
   let ret;
   try
   {
-    ret = origProcessNode.apply(this, arguments);
+    ret = origShouldAllow.apply(this, arguments);
     return ret;
   }
   finally
   {
     if (startTime !== null)
     {
       currentData.processingTime = (Date.now() - startTime);
-      currentData.result = (ret == true);
+      currentData.result = ret;
 
       processingQueue.push(currentData);
       currentData = null;
     }
   }
 }
 
 function destroy()
 {
   if (notifier)
     notifier.shutdown();
-  if (origShouldLoad)
-    PolicyPrivate.shouldLoad = origShouldLoad;
-  if (origProcessNode)
-    Policy.processNode = origProcessNode;
+  if (origShouldAllow)
+    Policy.shouldAllow = origShouldAllow;
 }
 
-function handleFilterHit(wnd, node, data)
+function handleFilterHit(data)
 {
   if (data.filter && currentData)
-    currentData.filters.push(data.filter.text);
+    currentData.filters.push(data.filter);
 }
 
 function processQueue()
 {
   if (!processingQueue.length)
     return;
 
+  function stringify(value)
+  {
+    if (typeof value == "undefined" || value == null)
+      return "";
+    else
+      return String(value);
+  }
+
   for each (let entry in processingQueue)
   {
-    entry.cols = {};
-    if (typeof entry.location != "undefined")
-      entry.cols.address = String(entry.location);
-    if (typeof entry.type != "undefined")
-    {
-      entry.cols.type = String(entry.type);
-      try {
-        // Nasty hack: try to get type name from ABP
-        if (entry.type in Policy.localizedDescr)
-          entry.cols.type = String(Policy.localizedDescr[entry.type]);
-      } catch(e) {}
-    }
-    entry.cols.result = stringBundle.GetStringFromName(entry.result ? "decision.allow" : "decision.block");
-    if (typeof entry.context != "undefined")
-      entry.cols.context = (entry.context ? getNodeLabel(entry.context) : String(entry.context));
-    if (typeof entry.window != "undefined")
-      entry.cols.document = (entry.window ? getNodeLabel(entry.window) : String(entry.window));
-    if (typeof entry.origin != "undefined")
-      entry.cols.origin = String(entry.origin);
-    if (entry.filters.length)
-      entry.cols.filter = entry.filters.join(", ");
-    if (typeof entry.processingTime != "undefined")
-      entry.cols.time = String(entry.processingTime);
-
-    let additional = [];
-    if (entry.internal)
-      additional.push(stringBundle.GetStringFromName("additional.internalInvocation"));
-    if (typeof entry.internalType != "undefined" && entry.type != entry.internalType)
-    {
-      let internalType = String(entry.internalType);
-      try {
-        // Nasty hack: try to get type name from ABP
-        if (entry.internalType in Policy.localizedDescr)
-          internalType = String(Policy.localizedDescr[entry.internalType]);
-      } catch(e) {}
-      additional.push(stringBundle.formatStringFromName("additional.typeChanged", [internalType], 1));
-    }
-    if (typeof entry.internalLocation != "undefined" && entry.location != entry.internalLocation)
-      additional.push(stringBundle.formatStringFromName("additional.locationChanged", [String(entry.internalLocation)], 1));
-
-    if (additional.length > 0)
-      entry.cols.additional = additional.join(", ");
-
+    entry.cols = {
+      address: stringify(entry.location),
+      type: stringify(entry.type),
+      result: stringBundle.GetStringFromName(entry.result && entry.result.allow ? "decision.allow" : "decision.block"),
+      origin: stringify(entry.frames && entry.frames[0] && entry.frames[0].location),
+      filters: stringify(entry.filters && entry.filters.join(", ")),
+      time: stringify(entry.processingTime)
+    };
     treeView.add(entry);
   }
 
   processingQueue = [];
 }
 
-function getNodeLabel(node)
-{
-  try
-  {
-    if (node instanceof Ci.nsIDOMWindow)
-      return stringBundle.formatStringFromName("NodeLabel.window", [node.location.href], 1);
-    if (node instanceof Ci.nsIDOMDocument)
-      return stringBundle.formatStringFromName("NodeLabel.document", [node.URL], 1);
-    else if (node instanceof Ci.nsIDOMXULElement)
-      return stringBundle.formatStringFromName("NodeLabel.xulElement", [node.tagName], 1);
-    else if (node instanceof Ci.nsIDOMHTMLElement)
-      return stringBundle.formatStringFromName("NodeLabel.htmlElement", [node.tagName], 1);
-    else if (node instanceof Ci.nsIDOMSVGElement)
-      return stringBundle.formatStringFromName("NodeLabel.svgElement", [node.tagName], 1);
-    else if (node instanceof Ci.nsIDOMElement)
-      return stringBundle.formatStringFromName("NodeLabel.element", [node.tagName], 1);
-    else
-      return stringBundle.formatStringFromName("NodeLabel.unknown", [String(node)], 1);
-  }
-  catch (e)
-  {
-    Cu.reportError(e);
-    return stringBundle.formatStringFromName("NodeLabel.unknown", [""], 1);
-  }
-}
-
 function fillInTooltip(event)
 {
   let entry = treeView.getEntryAt(event.clientX, event.clientY);
   if (!entry)
     return false;
 
   let rows = document.getElementById("tooltip-rows");
   while (rows.firstChild)
     rows.removeChild(rows.firstChild);
 
   let cols = document.getElementById("list").getElementsByTagName("treecol");
   for (let i = 0; i < cols.length; i++)
   {
     let col = cols[i].id;
     if (col && col in entry.cols)
     {
       let row = document.createElement("row");
 
       let label = document.createElement("description");
       label.setAttribute("class", "tooltip-label");
       label.setAttribute("value", cols[i].getAttribute("label"));
       row.appendChild(label);
 
       let value = document.createElement("vbox");
-      setMultilineContent(value, entry.cols[col]);
+      let data = entry.cols[col];
+      if (col == "origin")
+        data = entry.frames.map(f => f.location).join("\n");
+      setMultilineContent(value, data);
       row.appendChild(value);
 
       rows.appendChild(row);
     }
   }
 
   return true;
 }
 
 function updateContextMenu(event)
@@ skipping 14 matching lines @@
     clipboardHelper.copyString(String(entry.location));
 }
 
 function copyFilters()
 {
   let entry = treeView.getCurrentEntry();
   if (entry && entry.filters.length)
     clipboardHelper.copyString(entry.filters.join("\n"));
 }
 
-function setMultilineContent(box, text) {
-  // The following is sufficient in Gecko 1.9 but Gecko 1.8 fails on multiline
-  // text fields in tooltips
-  // box.textContent = text.replace(/\S{80}(?=\S)/g, "$& ");
-
-  for (let i = 0; i < text.length; i += 80) {
+function setMultilineContent(box, text)
+{
+  let lines = text.split(/\n+/);
+  for (let line of lines)
+  {
     let description = document.createElement("description");
-    description.setAttribute("value", text.substr(i, 80));
+    description.textContent = line.replace(/\S{80}(?=\S)/g, "$& ");
     box.appendChild(description);
   }
 }
 
 var totalProcessingTime = 0;
 function updateProcessingTime(view, operation, entry)
 {
   if (operation == "add")
     totalProcessingTime += entry.processingTime;
   else {
     totalProcessingTime = 0;
     for each (let entry in view.displayedItems)
       totalProcessingTime += entry.processingTime;
   }
 
   let numItems = view.displayedItems.length;
 
   let summary = document.getElementById("summary");
   let template = summary.getAttribute("_template");
   summary.textContent = template.replace(/\*NUMITEMS\*/g, numItems).replace(/\*TIME\*/, (totalProcessingTime / 1000).toFixed(3));
 }
 
 var treeView = {
   currentItems: [],
   displayedItems: [],
-  _ignoreEarlyReturns: false,
   _filterString: "",
   _sortColumn: null,
   _sortDirection: null,
   boxObject: null,
   atoms: {},
   observers: [],
 
   //
   // nsISupports implementation
   //
@@ skipping 15 matching lines @@
   selection: null,
 
   setTree: function(boxObject)
   {
     if (!boxObject)
       return;
 
     this.boxObject = boxObject;
 
     let atomService = Cc["@mozilla.org/atom-service;1"].getService(Ci.nsIAtomService);
-    for each (let col in ["address", "type", "result", "context", "document", "origin", "additional", "filter", "time"])
+    for each (let col in ["address", "type", "result", "origin", "filter", "time"])
     {
       let atomStr = "col-" + col;
       this.atoms[atomStr] = atomService.getAtom(atomStr);
     }
     for each (let flag in ["selected", "blocked"])
     {
       let atomStr = flag + "-true";
       this.atoms[atomStr] = atomService.getAtom(atomStr);
 
       atomStr = flag + "-false";
@@ skipping 54 matching lines @@
   },
 
   getRowProperties: function(row, properties)
   {
     if (row < 0 || row >= this.displayedItems.length)
       return "";
 
     let entry = this.displayedItems[row];
     return this.generateProperties([
         "selected-" + this.selection.isSelected(row),
-        "blocked-" + !entry.result
+        "blocked-" + !(entry.result && entry.result.allow)
       ], properties);
   },
 
   getCellProperties: function(row, col, properties)
   {
     return this.getRowProperties(row, properties) + " " + this.getColumnProperties(col, properties);
   },
 
   cycleHeader: function(col)
   {
@@ skipping 49 matching lines @@
   cycleCell: function() {},
   performAction: function() {},
   performActionOnRow: function() {},
   performActionOnCell: function() {},
   selectionChanged: function() {},
 
   //
   // Custom methods
   //
 
-  get ignoreEarlyReturns()
-  {
-    return this._ignoreEarlyReturns;
-  },
-  set ignoreEarlyReturns(value)
-  {
-    this._ignoreEarlyReturns = value;
-    this.refilter();
-  },
-
   get filterString()
   {
     return this._filterString;
   },
   set filterString(value)
   {
     this._filterString = value.toLowerCase();
     this.refilter();
   },
 
   filter: function(entry)
   {
-    if (this._ignoreEarlyReturns && entry.earlyReturn)
-      return false;
-
     if (this._filterString)
     {
       let foundMatch = false;
       for each (let label in entry.cols)
         if (label.toLowerCase().indexOf(this._filterString) >= 0)
           foundMatch = true;
 
       if (!foundMatch)
         return false;
     }
@@ skipping 109 matching lines @@
     for (let i = 0; i < this.observers.length; i++)
       if (this.observers[i] == observer)
         this.observers.splice(i--, 1);
   },
   notifyObservers: function(operation, entry)
   {
     for each (let observer in this.observers)
       observer(this, operation, entry);
   }
 };