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/* -*- 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___ */
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