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