Http Cache: Add support for resuming downloading a...

net/tools/dump_cache/cache_dumper.cc

 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/tools/dump_cache/cache_dumper.h"
 
 #include "net/base/io_buffer.h"
 #include "net/disk_cache/entry_impl.h"
 #include "net/http/http_cache.h"
 #include "net/http/http_response_headers.h"
@@ skipping 121 matching lines @@
 bool DiskDumper::WriteEntry(disk_cache::Entry* entry, int index, int offset,
                             net::IOBuffer* buf, int buf_len) {
   if (!entry_)
     return false;
 
   std::string headers;
   const char *data;
   int len;
   if (index == 0) {  // Stream 0 is the headers.
     net::HttpResponseInfo response_info;
+    bool truncated;
     if (!net::HttpCache::ParseResponseInfo(buf->data(), buf_len,
-                                           &response_info))
+                                           &response_info, &truncated))
       return false;
 
+    // Skip this entry if it was truncated (results in an empty file).
+    if (truncated)
+      return true;
+
     // Remove the size headers.
     response_info.headers->RemoveHeader("transfer-encoding");
     response_info.headers->RemoveHeader("content-length");
     response_info.headers->RemoveHeader("x-original-url");
 
     // Convert the headers into a string ending with LF.
     GetNormalizedHeaders(response_info, &headers);
 
     // Append a header for the original URL.
     std::string url = entry_url_;
@@ skipping 25 matching lines @@
 
 void DiskDumper::CloseEntry(disk_cache::Entry* entry, base::Time last_used,
                           base::Time last_modified) {
 #ifdef WIN32_LARGE_FILENAME_SUPPORT
   CloseHandle(entry_);
 #else
   file_util::CloseFile(entry_);
 #endif
 }