Implement private browsing intro as URI schemeprivate-browsing-intro

Fixes: #36

6 files changed, 75 insertions, 5 deletions

diff --git a/core/app.vala b/core/app.vala
index a495effc..46b2baa5 100644
--- a/core/app.vala
+++ b/core/app.vala
@@ -203,6 +203,73 @@ namespace Midori {
             request.unref ();
         }
 
+        internal WebKit.WebContext ephemeral_context () {
+            var context = new WebKit.WebContext.ephemeral ();
+            context.register_uri_scheme ("internal", (request) => {
+                request.ref ();
+                private_scheme.begin (request);
+            });
+            context.register_uri_scheme ("stock", (request) => {
+                request.ref ();
+                stock_scheme.begin (request);
+            });
+            context.register_uri_scheme ("res", (request) => {
+                try {
+                    var stream = resources_open_stream (request.get_path (),
+                                                        ResourceLookupFlags.NONE);
+                    request.finish (stream, -1, null);
+                } catch (Error error) {
+                    request.finish_error (error);
+                    critical ("Failed to load resource %s: %s", request.get_uri (), error.message);
+                }
+            });
+            return context;
+        }
+
+        async void private_scheme (WebKit.URISchemeRequest request) {
+            string[] suggestions = {
+                _("No history or web cookies are being saved."),
+                _("Extensions are disabled."),
+                _("HTML5 storage, local database and application caches are disabled."),
+            };
+            string[] notes = {
+                _("Referrer URLs are stripped down to the hostname."),
+                _("DNS prefetching is disabled."),
+                _("The language and timezone are not revealed to websites."),
+                _("Flash and other Netscape plugins cannot be listed by websites."),
+            };
+
+            try {
+                string description = "<ul>";
+                foreach (var suggestion in suggestions) {
+                    description += "<li>%s</li>".printf (suggestion);
+                }
+                description += "</ul>";
+                description += "<b>%s</b><br>".printf (_("Midori prevents websites from tracking the user:"));
+                description += "<ul>";
+                foreach (var note in notes) {
+                    description += "<li>%s</li>".printf (note);
+                }
+                description += "</ul>";
+                string stylesheet = (string)resources_lookup_data ("/data/about.css",
+                                                                    ResourceLookupFlags.NONE).get_data ();
+                string html = ((string)resources_lookup_data ("/data/error.html",
+                                                             ResourceLookupFlags.NONE).get_data ())
+                    .replace ("{title}", _("Private Browsing"))
+                    .replace ("{icon}", "user-not-tracked")
+                    .replace ("{message}", _("Midori doesn't store any personal data:"))
+                    .replace ("{description}", description)
+                    .replace ("{tryagain}", "")
+                    .replace ("{stylesheet}", stylesheet);
+                var stream = new MemoryInputStream.from_data (html.data, free);
+                request.finish (stream, html.length, "text/html");
+            } catch (Error error) {
+                request.finish_error (error);
+                critical ("Failed to render %s: %s", request.get_uri (), error.message);
+            }
+            request.unref ();
+        }
+
         void win_new_activated (Action action, Variant? parameter) {
             var browser = incognito
                 ? new Browser.incognito (this)
diff --git a/core/browser.vala b/core/browser.vala
index c22b2417..6d04c4a2 100644
--- a/core/browser.vala
+++ b/core/browser.vala
@@ -253,7 +253,7 @@ namespace Midori {
 
         public Browser.incognito (App app) {
             Object (application: app,
-                    web_context: new WebKit.WebContext.ephemeral ());
+                    web_context: app.ephemeral_context ());
 
             profile.sensitive = false;
             remove_action ("clear-private-data");
diff --git a/core/tab.vala b/core/tab.vala
index e920d864..9bdf87e0 100644
--- a/core/tab.vala
+++ b/core/tab.vala
@@ -186,7 +186,7 @@ namespace Midori {
                     .replace ("{title}", title)
                     .replace ("{message}", message)
                     .replace ("{description}", description ?? "")
-                    .replace ("{tryagain}", _("Try Again"))
+                    .replace ("{tryagain}", "<span>%s</span>".printf (_("Try Again")))
                     .replace ("{uri}", display_uri);
                 load_alternate_html (html, display_uri, display_uri);
                 return true;
diff --git a/data/about.css b/data/about.css
index ab1d85ff..cc2144ee 100644
--- a/data/about.css
+++ b/data/about.css
@@ -51,6 +51,9 @@ button span {
     vertical-align: middle;
     padding: 2pt 1pt;
 }
+button:empty {
+    display: none;
+}
 
 .message {
     overflow: hidden;
diff --git a/data/error.html b/data/error.html
index 06026c00..89b265d5 100644
--- a/data/error.html
+++ b/data/error.html
@@ -10,6 +10,7 @@
 -->
 <html>
   <head>
+    <meta charset="utf-8">
     <title>{title}</title>
     <link ref="shortcut icon" href="stock:///{icon}" />
     <style type="text/css">
@@ -26,9 +27,7 @@
         <p class="message">{message}</p>
         <span class="description">{description}</span>
         <div class="action">
-          <button onclick="window.location = '{uri}'">
-            <span>{tryagain}</span>
-          </button>
+          <button onclick="window.location = '{uri}'">{tryagain}</button>
         </div>
       </div>
     </div>
diff --git a/data/speed-dial.html b/data/speed-dial.html
index c1e89d36..72cc7604 100644
--- a/data/speed-dial.html
+++ b/data/speed-dial.html
@@ -10,6 +10,7 @@
 -->
 <html>
   <head>
+    <meta charset="utf-8">
     <title>{title}</title>
     <link ref="shortcut icon" href="stock:///{icon}" />
     <style type="text/css">