1 files changed, 89 insertions, 0 deletions
diff --git a/dom/plugins/base/nsPluginsDirUtils.h b/dom/plugins/base/nsPluginsDirUtils.h
new file mode 100644
index 000000000..178dc6968
--- /dev/null
+++ b/dom/plugins/base/nsPluginsDirUtils.h
@@ -0,0 +1,89 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nsPluginsDirUtils_h___
+#define nsPluginsDirUtils_h___
+
+#include "nsPluginsDir.h"
+#include "nsTArray.h"
+#include "prmem.h"
+
+///////////////////////////////////////////////////////////////////////////////
+// Output format from NPP_GetMIMEDescription: "...mime type[;version]:[extension]:[desecription];..."
+// The ambiguity of mime description could cause the browser fail to parse the MIME types 
+// correctly.
+// E.g. "mime type::desecription;" // correct w/o ext 
+//      "mime type:desecription;"  // wrong w/o ext 
+//
+static nsresult
+ParsePluginMimeDescription(const char *mdesc, nsPluginInfo &info)
+{
+    nsresult rv = NS_ERROR_FAILURE;
+    if (!mdesc || !*mdesc)
+       return rv;
+
+    char *mdescDup = PL_strdup(mdesc); // make a dup of intput string we'll change it content
+    char anEmptyString[] = "";
+    AutoTArray<char*, 8> tmpMimeTypeArr;
+    char delimiters[] = {':',':',';'};
+    int mimeTypeVariantCount = 0;
+    char *p = mdescDup; // make a dup of intput string we'll change it content
+    while(p) {
+        char *ptrMimeArray[] = {anEmptyString, anEmptyString, anEmptyString};
+
+        // It's easy to point out ptrMimeArray[0] to the string sounds like
+        // "Mime type is not specified, plugin will not function properly."
+        // and show this on "about:plugins" page, but we have to mark this particular
+        // mime type of given plugin as disable on "about:plugins" page,
+        // which feature is not implemented yet.
+        // So we'll ignore, without any warnings, an empty description strings, 
+        // in other words, if after parsing ptrMimeArray[0] == anEmptyString is true.
+        // It is possible do not to registry a plugin at all if it returns
+        // an empty string on GetMIMEDescription() call,
+        // e.g. plugger returns "" if pluggerrc file is not found.
+
+        char *s = p;
+        int i;
+        for (i = 0; i < (int) sizeof(delimiters) && (p = PL_strchr(s, delimiters[i])); i++) {
+            ptrMimeArray[i] = s; // save start ptr
+            *p++ = 0; // overwrite delimiter
+            s = p; // move forward
+        }
+        if (i == 2)
+           ptrMimeArray[i] = s;
+        // fill out the temp array 
+        // the order is important, it should be the same in for loop below 
+        if (ptrMimeArray[0] != anEmptyString) {
+            tmpMimeTypeArr.AppendElement(ptrMimeArray[0]);
+            tmpMimeTypeArr.AppendElement(ptrMimeArray[1]);
+            tmpMimeTypeArr.AppendElement(ptrMimeArray[2]);
+            mimeTypeVariantCount++;
+        }
+    }
+
+    // fill out info structure
+    if (mimeTypeVariantCount) {
+        info.fVariantCount         = mimeTypeVariantCount;
+        // we can do these 3 mallocs at once, later on code cleanup
+        info.fMimeTypeArray        = (char **)PR_Malloc(mimeTypeVariantCount * sizeof(char *));
+        info.fMimeDescriptionArray = (char **)PR_Malloc(mimeTypeVariantCount * sizeof(char *));
+        info.fExtensionArray       = (char **)PR_Malloc(mimeTypeVariantCount * sizeof(char *));
+
+        int j,i;
+        for (j = i = 0; i < mimeTypeVariantCount; i++) {
+            // the order is important, do not change it
+           // we can get rid of PL_strdup here, later on code cleanup
+            info.fMimeTypeArray[i]        =  PL_strdup(tmpMimeTypeArr.ElementAt(j++));
+            info.fExtensionArray[i]       =  PL_strdup(tmpMimeTypeArr.ElementAt(j++));
+            info.fMimeDescriptionArray[i] =  PL_strdup(tmpMimeTypeArr.ElementAt(j++));
+        }
+        rv = NS_OK;
+    }
+    if (mdescDup)
+        PR_Free(mdescDup);
+    return rv;
+}
+
+#endif /* nsPluginsDirUtils_h___ */