static char* GetPluginString(short id, short index)
{
Str255 str;
::GetIndString(str, id, index);
return p2cstrdup(str);
}
static char* GetNextPluginStringFromHandle(Handle h, short *index)
{
char *ret = p2cstrdup((unsigned char*)(*h + *index));
*index += (ret ? PL_strlen(ret) : 0) + 1;
return ret;
}
/**
* Obtains all of the information currently available for this plugin.
*/
nsresult nsPluginFile::GetPluginInfo(nsPluginInfo& info)
{
// clear out the info, except for the first field.
memset(&info.fName, 0, sizeof(info) - sizeof(PRUint32));
// need to open the plugin's resource file and read some resources.
short refNum = OpenPluginResource();
if (refNum >= 0) {
if (info.fPluginInfoSize >= sizeof(nsPluginInfo)) {
// 'STR#', 126, 2 => plugin name.
info.fName = GetPluginString(126, 2);
// 'STR#', 126, 1 => plugin description.
info.fDescription = GetPluginString(126, 1);
nsCString path;
mPlugin->GetNativePath(path);
FSSpec spec;
toFSSpec(mPlugin, spec);
info.fFileName = p2cstrdup(spec.name);
info.fFullPath = PL_strdup(path.get());
CFBundleRef bundle = getPluginBundle(path.get());
if (bundle) {
info.fBundle = PR_TRUE;
CFRelease(bundle);
} else
info.fBundle = PR_FALSE;
// It's possible that our plugin has 2 special extra entry points that'll give us more
// mime type info. Quicktime does this to get around the need of having admin rights
// to change mime info in the resource fork. We need to use this info instead of the
// resource. See bug 113464.
BPSupportedMIMETypes mi = {kBPSupportedMIMETypesStructVers_1, NULL, NULL};
if (pLibrary) {
// First, check for NP_GetMIMEDescription
NP_GETMIMEDESCRIPTION pfnGetMimeDesc =
(NP_GETMIMEDESCRIPTION)PR_FindSymbol(pLibrary, NP_GETMIMEDESCRIPTION_NAME);
if (pfnGetMimeDesc) {
nsresult rv = ParsePluginMimeDescription(pfnGetMimeDesc(), info);
if (NS_SUCCEEDED(rv)) { // if we could parse the mime types from NP_GetMIMEDescription,
::CloseResFile(refNum); // we've got what we need, close the resource, we're done
return rv;
}
}
// Next check for mime info from BP_GetSupportedMIMETypes
BP_GETSUPPORTEDMIMETYPES pfnMime =
(BP_GETSUPPORTEDMIMETYPES)PR_FindSymbol(pLibrary, "BP_GetSupportedMIMETypes");
if (pfnMime && noErr == pfnMime(&mi, 0) && mi.typeStrings) {
info.fVariantCount = (**(short**)mi.typeStrings) / 2;
::HLock(mi.typeStrings);
if (mi.infoStrings) // it's possible some plugins have infoStrings missing
::HLock(mi.infoStrings);
}
}
// Last, we couldn't get info from an extra entry point for some reason,
// Lets get info from normal resources
if (!info.fVariantCount) {
mi.typeStrings = ::Get1Resource('STR#', 128);
if (mi.typeStrings) {
info.fVariantCount = (**(short**)mi.typeStrings) / 2;
::DetachResource(mi.typeStrings);
::HLock(mi.typeStrings);
} else {
// Don't add this plugin because no mime types could be found
::CloseResFile(refNum);
return NS_ERROR_FAILURE;
}
mi.infoStrings = ::Get1Resource('STR#', 127);
if (mi.infoStrings) {
::DetachResource(mi.infoStrings);
::HLock(mi.infoStrings);
}
}
// fill-in rest of info struct
int variantCount = info.fVariantCount;
info.fMimeTypeArray = new char*[variantCount];
info.fExtensionArray = new char*[variantCount];
if (mi.infoStrings)
info.fMimeDescriptionArray = new char*[variantCount];
short mimeIndex = 2, descriptionIndex = 2;
for (int i = 0; i < variantCount; i++) {
info.fMimeTypeArray[i] = GetNextPluginStringFromHandle(mi.typeStrings, &mimeIndex);
info.fExtensionArray[i] = GetNextPluginStringFromHandle(mi.typeStrings, &mimeIndex);
if (mi.infoStrings)
info.fMimeDescriptionArray[i] = GetNextPluginStringFromHandle(mi.infoStrings, &descriptionIndex);
}
::HUnlock(mi.typeStrings);
::DisposeHandle(mi.typeStrings);
if (mi.infoStrings) {
::HUnlock(mi.infoStrings);
::DisposeHandle(mi.infoStrings);
}
}
::CloseResFile(refNum);
}
return NS_OK;
}
