LCOV - code coverage report
Current view: directory - dom/plugins/base - nsPluginsDirUtils.h (source / functions) Found Hit Coverage
Test: app.info Lines: 37 36 97.3 %
Date: 2012-06-02 Functions: 1 1 100.0 %

       1                 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2                 : /* ***** BEGIN LICENSE BLOCK *****
       3                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       4                 :  *
       5                 :  * The contents of this file are subject to the Mozilla Public License Version
       6                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       7                 :  * the License. You may obtain a copy of the License at
       8                 :  * http://www.mozilla.org/MPL/
       9                 :  *
      10                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      11                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      12                 :  * for the specific language governing rights and limitations under the
      13                 :  * License.
      14                 :  *
      15                 :  * The Original Code is mozilla.org code.
      16                 :  *
      17                 :  * The Initial Developer of the Original Code is
      18                 :  * Netscape Communications Corporation.
      19                 :  * Portions created by the Initial Developer are Copyright (C) 1998
      20                 :  * the Initial Developer. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      23                 :  *
      24                 :  * Alternatively, the contents of this file may be used under the terms of
      25                 :  * either the GNU General Public License Version 2 or later (the "GPL"), or
      26                 :  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      27                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      28                 :  * of those above. If you wish to allow use of your version of this file only
      29                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      30                 :  * use your version of this file under the terms of the MPL, indicate your
      31                 :  * decision by deleting the provisions above and replace them with the notice
      32                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      33                 :  * the provisions above, a recipient may use your version of this file under
      34                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      35                 :  *
      36                 :  * ***** END LICENSE BLOCK ***** */
      37                 : 
      38                 : #ifndef nsPluginsDirUtils_h___
      39                 : #define nsPluginsDirUtils_h___
      40                 : 
      41                 : #include "nsPluginsDir.h"
      42                 : #include "nsTArray.h"
      43                 : #include "prmem.h"
      44                 : 
      45                 : ///////////////////////////////////////////////////////////////////////////////
      46                 : // Output format from NPP_GetMIMEDescription: "...mime type[;version]:[extension]:[desecription];..."
      47                 : // The ambiguity of mime description could cause the browser fail to parse the MIME types 
      48                 : // correctly.
      49                 : // E.g. "mime type::desecription;" // correct w/o ext 
      50                 : //      "mime type:desecription;"  // wrong w/o ext 
      51                 : //
      52                 : static nsresult
      53             173 : ParsePluginMimeDescription(const char *mdesc, nsPluginInfo &info)
      54                 : {
      55             173 :     nsresult rv = NS_ERROR_FAILURE;
      56             173 :     if (!mdesc || !*mdesc)
      57               0 :        return rv;
      58                 : 
      59             173 :     char *mdescDup = PL_strdup(mdesc); // make a dup of intput string we'll change it content
      60             173 :     char anEmptyString[] = "";
      61             346 :     nsAutoTArray<char*, 8> tmpMimeTypeArr;
      62             173 :     char delimiters[] = {':',':',';'};
      63             173 :     int mimeTypeVariantCount = 0;
      64             173 :     char *p = mdescDup; // make a dup of intput string we'll change it content
      65             519 :     while(p) {
      66             173 :         char *ptrMimeArray[] = {anEmptyString, anEmptyString, anEmptyString};
      67                 : 
      68                 :         // It's easy to point out ptrMimeArray[0] to the string sounds like
      69                 :         // "Mime type is not specified, plugin will not function properly."
      70                 :         // and show this on "about:plugins" page, but we have to mark this particular
      71                 :         // mime type of given plugin as disable on "about:plugins" page,
      72                 :         // which feature is not implemented yet.
      73                 :         // So we'll ignore, without any warnings, an empty description strings, 
      74                 :         // in other words, if after parsing ptrMimeArray[0] == anEmptyString is true.
      75                 :         // It is possible do not to registry a plugin at all if it returns
      76                 :         // an empty string on GetMIMEDescription() call,
      77                 :         // e.g. plugger returns "" if pluggerrc file is not found.
      78                 : 
      79             173 :         char *s = p;
      80                 :         int i;
      81             519 :         for (i = 0; i < (int) sizeof(delimiters) && (p = PL_strchr(s, delimiters[i])); i++) {
      82             346 :             ptrMimeArray[i] = s; // save start ptr
      83             346 :             *p++ = 0; // overwrite delimiter
      84             346 :             s = p; // move forward
      85                 :         }
      86             173 :         if (i == 2)
      87             173 :            ptrMimeArray[i] = s;
      88                 :         // fill out the temp array 
      89                 :         // the order is important, it should be the same in for loop below 
      90             173 :         if (ptrMimeArray[0] != anEmptyString) {
      91             173 :             tmpMimeTypeArr.AppendElement(ptrMimeArray[0]);
      92             173 :             tmpMimeTypeArr.AppendElement(ptrMimeArray[1]);
      93             173 :             tmpMimeTypeArr.AppendElement(ptrMimeArray[2]);
      94             173 :             mimeTypeVariantCount++;
      95                 :         }
      96                 :     }
      97                 : 
      98                 :     // fill out info structure
      99             173 :     if (mimeTypeVariantCount) {
     100             173 :         info.fVariantCount         = mimeTypeVariantCount;
     101                 :         // we can do these 3 mallocs at once, later on code cleanup
     102             173 :         info.fMimeTypeArray        = (char **)PR_Malloc(mimeTypeVariantCount * sizeof(char *));
     103             173 :         info.fMimeDescriptionArray = (char **)PR_Malloc(mimeTypeVariantCount * sizeof(char *));
     104             173 :         info.fExtensionArray       = (char **)PR_Malloc(mimeTypeVariantCount * sizeof(char *));
     105                 : 
     106                 :         int j,i;
     107             346 :         for (j = i = 0; i < mimeTypeVariantCount; i++) {
     108                 :             // the order is important, do not change it
     109                 :            // we can get rid of PL_strdup here, later on code cleanup
     110             173 :             info.fMimeTypeArray[i]        =  PL_strdup(tmpMimeTypeArr.ElementAt(j++));
     111             173 :             info.fExtensionArray[i]       =  PL_strdup(tmpMimeTypeArr.ElementAt(j++));
     112             173 :             info.fMimeDescriptionArray[i] =  PL_strdup(tmpMimeTypeArr.ElementAt(j++));
     113                 :         }
     114             173 :         rv = NS_OK;
     115                 :     }
     116             173 :     if (mdescDup)
     117             173 :         PR_Free(mdescDup);
     118             173 :     return rv;
     119                 : }
     120                 : 
     121                 : #endif /* nsPluginsDirUtils_h___ */

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