LCOV - code coverage report
Current view: top level - netwerk/protocol/data - nsDataChannel.cpp (source / functions) Hit Total Coverage
Test: output.info Lines: 24 40 60.0 %
Date: 2017-07-14 16:53:18 Functions: 1 1 100.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /* This Source Code Form is subject to the terms of the Mozilla Public
       3             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       4             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
       5             : 
       6             : // data implementation
       7             : 
       8             : #include "nsDataChannel.h"
       9             : 
      10             : #include "mozilla/Base64.h"
      11             : #include "nsIOService.h"
      12             : #include "nsDataHandler.h"
      13             : #include "nsIPipe.h"
      14             : #include "nsIInputStream.h"
      15             : #include "nsIOutputStream.h"
      16             : #include "nsEscape.h"
      17             : 
      18             : using namespace mozilla;
      19             : 
      20             : nsresult
      21           6 : nsDataChannel::OpenContentStream(bool async, nsIInputStream **result,
      22             :                                  nsIChannel** channel)
      23             : {
      24           6 :     NS_ENSURE_TRUE(URI(), NS_ERROR_NOT_INITIALIZED);
      25             : 
      26             :     nsresult rv;
      27             : 
      28          12 :     nsAutoCString spec;
      29           6 :     rv = URI()->GetAsciiSpec(spec);
      30           6 :     if (NS_FAILED(rv)) return rv;
      31             : 
      32          12 :     nsCString contentType, contentCharset, dataBuffer;
      33             :     bool lBase64;
      34             :     rv = nsDataHandler::ParseURI(spec, contentType, &contentCharset,
      35           6 :                                  lBase64, &dataBuffer);
      36           6 :     if (NS_FAILED(rv))
      37           0 :         return rv;
      38             : 
      39           6 :     NS_UnescapeURL(dataBuffer);
      40             : 
      41           6 :     if (lBase64) {
      42             :         // Don't allow spaces in base64-encoded content. This is only
      43             :         // relevant for escaped spaces; other spaces are stripped in
      44             :         // NewURI.
      45           0 :         dataBuffer.StripWhitespace();
      46             :     }
      47             : 
      48          12 :     nsCOMPtr<nsIInputStream> bufInStream;
      49          12 :     nsCOMPtr<nsIOutputStream> bufOutStream;
      50             : 
      51             :     // create an unbounded pipe.
      52          18 :     rv = NS_NewPipe(getter_AddRefs(bufInStream),
      53          12 :                     getter_AddRefs(bufOutStream),
      54             :                     nsIOService::gDefaultSegmentSize,
      55             :                     UINT32_MAX,
      56           6 :                     async, true);
      57           6 :     if (NS_FAILED(rv))
      58           0 :         return rv;
      59             : 
      60             :     uint32_t contentLen;
      61           6 :     if (lBase64) {
      62           0 :         const uint32_t dataLen = dataBuffer.Length();
      63           0 :         int32_t resultLen = 0;
      64           0 :         if (dataLen >= 1 && dataBuffer[dataLen-1] == '=') {
      65           0 :             if (dataLen >= 2 && dataBuffer[dataLen-2] == '=')
      66           0 :                 resultLen = dataLen-2;
      67             :             else
      68           0 :                 resultLen = dataLen-1;
      69             :         } else {
      70           0 :             resultLen = dataLen;
      71             :         }
      72           0 :         resultLen = ((resultLen * 3) / 4);
      73             : 
      74           0 :         nsAutoCString decodedData;
      75           0 :         rv = Base64Decode(dataBuffer, decodedData);
      76           0 :         NS_ENSURE_SUCCESS(rv, rv);
      77           0 :         rv = bufOutStream->Write(decodedData.get(), resultLen, &contentLen);
      78             :     } else {
      79           6 :         rv = bufOutStream->Write(dataBuffer.get(), dataBuffer.Length(), &contentLen);
      80             :     }
      81           6 :     if (NS_FAILED(rv))
      82           0 :         return rv;
      83             : 
      84           6 :     SetContentType(contentType);
      85           6 :     SetContentCharset(contentCharset);
      86           6 :     mContentLength = contentLen;
      87             : 
      88           6 :     bufInStream.forget(result);
      89             : 
      90           6 :     return NS_OK;
      91             : }

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