1 files changed, 88 insertions, 0 deletions
diff --git a/dom/plugins/base/nsPluginsDirUtils.h b/dom/plugins/base/nsPluginsDirUtils.h
new file mode 100644
index 0000000000..e4d929d1fc
--- /dev/null
+++ b/dom/plugins/base/nsPluginsDirUtils.h
@@ -0,0 +1,88 @@
+/* -*- 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"
+
+///////////////////////////////////////////////////////////////////////////////
+// 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**)malloc(mimeTypeVariantCount * sizeof(char*));
+    info.fMimeDescriptionArray =
+        (char**)malloc(mimeTypeVariantCount * sizeof(char*));
+    info.fExtensionArray = (char**)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) PL_strfree(mdescDup);
+  return rv;
+}
+
+#endif /* nsPluginsDirUtils_h___ */