[Notification Jobs] Enforce plain text and escape HTML

QtQuick Text auto-interprets HTML tags when it finds them, this can lead
to unexpected results if a file is named e.g. `<h1>foo</h1>`.

Since notifications do interpret HTML tags by design, we manually escape
them there.

Differential Revision: https://phabricator.kde.org/D5706

applets/notifications/package/contents/ui/JobDelegate.qml

@@ -52,6 +52,7 @@ Column {
         opacity: 0.6
         level: 3
         text: jobItem.isSuspended ? i18nc("Placeholder is job name, eg. 'Copying'", "%1 (Paused)", infoMessage) : infoMessage
+        textFormat: Text.PlainText
     }
 
     RowLayout {
@@ -65,6 +66,7 @@ Column {
                 var labelSplit = label0.split("/")
                 return labelSplit[labelSplit.length-1]
             }
+            textFormat: Text.PlainText
         }
 
         PlasmaComponents.ToolButton {

applets/notifications/package/contents/ui/JobDetailsItem.qml

@@ -92,6 +92,7 @@ Column {
                 font: theme.smallestFont
                 text: jobItem["labelName" + index] ? i18nc("placeholder is row description, such as Source or Destination", "%1:", jobItem["labelName" + index]) : ""
                 horizontalAlignment: Text.AlignRight
+                textFormat: Text.PlainText
             }
 
             PlasmaComponents.Label {
@@ -101,11 +102,13 @@ Column {
 
                 font: theme.smallestFont
                 text: jobItem["label" + index] || ""
+                textFormat: Text.PlainText
                 elide: Text.ElideMiddle
 
                 PlasmaCore.ToolTipArea {
                     anchors.fill: parent
                     subText: labelText.truncated ? labelText.text : ""
+                    textFormat: Text.PlainText
                 }
             }
         }
@@ -125,6 +128,7 @@ Column {
             height: paintedHeight
 
             text: localizeProcessedAmount(index)
+            textFormat: Text.PlainText
             font: theme.smallestFont
             visible: text !== ""
         }
@@ -141,6 +145,7 @@ Column {
 
         font: theme.smallestFont
         text: eta > 0 ? i18nc("Speed and estimated time to completion", "%1 (%2 remaining)", speed, KCoreAddons.Format.formatSpelloutDuration(eta)) : speed
+        textFormat: Text.PlainText
         visible: eta > 0 || parseInt(speed) > 0
     }
 

applets/notifications/package/contents/ui/Jobs.qml

@@ -80,11 +80,20 @@ Column {
                 summary = infoMessage ? i18nc("the job, which can be anything, failed to complete", "%1: Failed", infoMessage) : i18n("Job Failed")
             }
 
+            // notification body interprets HTML, so we need to manually escape the name
+            var body = (errorText || message || "").replace(/[&<>]/g, function (tag) {
+                return {
+                    '&': '&amp;',
+                    '<': '&lt;',
+                    '>': '&gt;'
+                }[tag] || tag
+            });
+
             var op = {
                 appIcon: runningJobs[source].appIconName,
                 appName: runningJobs[source].appName,
                 summary: summary,
-                body: errorText || message,
+                body: body,
                 isPersistent: !!error, // we'll assume success to be the note-unworthy default, only be persistent in error case
                 urgency: 0,
                 configurable: false,