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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/174145">174145</a></dd>
<dt>Author</dt> <dd>carlosgc@webkit.org</dd>
<dt>Date</dt> <dd>2014-10-01 00:20:30 -0700 (Wed, 01 Oct 2014)</dd>
</dl>
<h3>Log Message</h3>
<pre>Merge <a href="http://trac.webkit.org/projects/webkit/changeset/172920">r172920</a> - [GTK] Older versions of WebKit should use the plugins cache in read only mode
https://bugs.webkit.org/show_bug.cgi?id=136215
Reviewed by Philippe Normand.
Now that WebKitGTK+ 2.4 and 2.5 are parallel installable, since
they use different versions of the plugins cache, apps using 2.4
might override the plugins cache file. We should prevent this from
happening by making older versions use the plugin cache, but not
downgrade it.
* UIProcess/Plugins/gtk/PluginInfoCache.cpp:
(WebKit::PluginInfoCache::PluginInfoCache):
(WebKit::PluginInfoCache::updatePluginInfo):
* UIProcess/Plugins/gtk/PluginInfoCache.h:</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#releasesWebKitGTKwebkit22SourceWebKit2ChangeLog">releases/WebKitGTK/webkit-2.2/Source/WebKit2/ChangeLog</a></li>
<li><a href="#releasesWebKitGTKwebkit22SourceWebKit2UIProcessPluginsgtkPluginInfoCachecpp">releases/WebKitGTK/webkit-2.2/Source/WebKit2/UIProcess/Plugins/gtk/PluginInfoCache.cpp</a></li>
<li><a href="#releasesWebKitGTKwebkit22SourceWebKit2UIProcessPluginsgtkPluginInfoCacheh">releases/WebKitGTK/webkit-2.2/Source/WebKit2/UIProcess/Plugins/gtk/PluginInfoCache.h</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="releasesWebKitGTKwebkit22SourceWebKit2ChangeLog"></a>
<div class="modfile"><h4>Modified: releases/WebKitGTK/webkit-2.2/Source/WebKit2/ChangeLog (174144 => 174145)</h4>
<pre class="diff"><span>
<span class="info">--- releases/WebKitGTK/webkit-2.2/Source/WebKit2/ChangeLog 2014-10-01 06:40:33 UTC (rev 174144)
+++ releases/WebKitGTK/webkit-2.2/Source/WebKit2/ChangeLog 2014-10-01 07:20:30 UTC (rev 174145)
</span><span class="lines">@@ -1,3 +1,21 @@
</span><ins>+2014-08-25 Carlos Garcia Campos <cgarcia@igalia.com>
+
+ [GTK] Older versions of WebKit should use the plugins cache in read only mode
+ https://bugs.webkit.org/show_bug.cgi?id=136215
+
+ Reviewed by Philippe Normand.
+
+ Now that WebKitGTK+ 2.4 and 2.5 are parallel installable, since
+ they use different versions of the plugins cache, apps using 2.4
+ might override the plugins cache file. We should prevent this from
+ happening by making older versions use the plugin cache, but not
+ downgrade it.
+
+ * UIProcess/Plugins/gtk/PluginInfoCache.cpp:
+ (WebKit::PluginInfoCache::PluginInfoCache):
+ (WebKit::PluginInfoCache::updatePluginInfo):
+ * UIProcess/Plugins/gtk/PluginInfoCache.h:
+
</ins><span class="cx"> 2014-08-12 Carlos Garcia Campos <cgarcia@igalia.com>
</span><span class="cx">
</span><span class="cx"> [GTK] The plugins metadata cache doesn't work if the user cache directory doesn't exist
</span></span></pre></div>
<a id="releasesWebKitGTKwebkit22SourceWebKit2UIProcessPluginsgtkPluginInfoCachecpp"></a>
<div class="modfile"><h4>Modified: releases/WebKitGTK/webkit-2.2/Source/WebKit2/UIProcess/Plugins/gtk/PluginInfoCache.cpp (174144 => 174145)</h4>
<pre class="diff"><span>
<span class="info">--- releases/WebKitGTK/webkit-2.2/Source/WebKit2/UIProcess/Plugins/gtk/PluginInfoCache.cpp 2014-10-01 06:40:33 UTC (rev 174144)
+++ releases/WebKitGTK/webkit-2.2/Source/WebKit2/UIProcess/Plugins/gtk/PluginInfoCache.cpp 2014-10-01 07:20:30 UTC (rev 174145)
</span><span class="lines">@@ -46,6 +46,7 @@
</span><span class="cx"> PluginInfoCache::PluginInfoCache()
</span><span class="cx"> : m_cacheFile(g_key_file_new())
</span><span class="cx"> , m_saveToFileIdleId(0)
</span><ins>+ , m_readOnlyMode(false)
</ins><span class="cx"> {
</span><span class="cx"> GOwnPtr<char> cacheDirectory(g_build_filename(g_get_user_cache_dir(), "webkitgtk", nullptr));
</span><span class="cx"> if (WebCore::makeAllDirectories(cacheDirectory.get())) {
</span><span class="lines">@@ -55,11 +56,16 @@
</span><span class="cx">
</span><span class="cx"> if (g_key_file_has_group(m_cacheFile.get(), "schema")) {
</span><span class="cx"> unsigned schemaVersion = static_cast<unsigned>(g_key_file_get_integer(m_cacheFile.get(), "schema", "version", nullptr));
</span><del>- if (schemaVersion == gSchemaVersion)
</del><ins>+ if (schemaVersion < gSchemaVersion) {
+ // Cache file using an old schema, create a new empty file.
+ m_cacheFile.set(g_key_file_new());
+ } else if (schemaVersion > gSchemaVersion) {
+ // Cache file using a newer schema, use the cache in read only mode.
+ m_readOnlyMode = true;
+ } else {
+ // Same schema version, we don't need to update it.
</ins><span class="cx"> return;
</span><del>-
- // Cache file using an old schema, create a new empty file.
- m_cacheFile.set(g_key_file_new());
</del><ins>+ }
</ins><span class="cx"> }
</span><span class="cx">
</span><span class="cx"> g_key_file_set_integer(m_cacheFile.get(), "schema", "version", static_cast<unsigned>(gSchemaVersion));
</span><span class="lines">@@ -134,7 +140,7 @@
</span><span class="cx"> String mimeDescription = NetscapePluginModule::buildMIMEDescription(plugin.info.mimes);
</span><span class="cx"> g_key_file_set_string(m_cacheFile.get(), pluginGroup.data(), "mime-description", mimeDescription.utf8().data());
</span><span class="cx">
</span><del>- if (m_cachePath) {
</del><ins>+ if (m_cachePath && !m_readOnlyMode) {
</ins><span class="cx"> // Save the cache file in an idle to make sure it happens in the main thread and
</span><span class="cx"> // it's done only once when this is called multiple times in a very short time.
</span><span class="cx"> std::lock_guard<std::mutex> lock(m_mutex);
</span></span></pre></div>
<a id="releasesWebKitGTKwebkit22SourceWebKit2UIProcessPluginsgtkPluginInfoCacheh"></a>
<div class="modfile"><h4>Modified: releases/WebKitGTK/webkit-2.2/Source/WebKit2/UIProcess/Plugins/gtk/PluginInfoCache.h (174144 => 174145)</h4>
<pre class="diff"><span>
<span class="info">--- releases/WebKitGTK/webkit-2.2/Source/WebKit2/UIProcess/Plugins/gtk/PluginInfoCache.h 2014-10-01 06:40:33 UTC (rev 174144)
+++ releases/WebKitGTK/webkit-2.2/Source/WebKit2/UIProcess/Plugins/gtk/PluginInfoCache.h 2014-10-01 07:20:30 UTC (rev 174145)
</span><span class="lines">@@ -54,6 +54,7 @@
</span><span class="cx"> GOwnPtr<GKeyFile> m_cacheFile;
</span><span class="cx"> GOwnPtr<char> m_cachePath;
</span><span class="cx"> unsigned m_saveToFileIdleId;
</span><ins>+ bool m_readOnlyMode;
</ins><span class="cx"> std::mutex m_mutex;
</span><span class="cx"> };
</span><span class="cx">
</span></span></pre>
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