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| 1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 // TODO : Support NP_ASFILEONLY mode | |
| 6 // TODO : Support NP_SEEK mode | |
| 7 // TODO : Support SEEKABLE=true in NewStream | |
| 8 | |
| 9 #include "webkit/glue/plugins/plugin_stream.h" | |
| 10 | |
| 11 #include "base/message_loop.h" | |
| 12 #include "base/string_util.h" | |
| 13 #include "base/utf_string_conversions.h" | |
| 14 #include "net/base/mime_util.h" | |
| 15 #include "webkit/glue/plugins/plugin_instance.h" | |
| 16 #include "googleurl/src/gurl.h" | |
| 17 | |
| 18 namespace NPAPI { | |
| 19 | |
| 20 PluginStream::~PluginStream() { | |
| 21 // always close our temporary files. | |
| 22 CloseTempFile(); | |
| 23 free(const_cast<char*>(stream_.url)); | |
| 24 } | |
| 25 | |
| 26 bool PluginStream::Open(const std::string &mime_type, | |
| 27 const std::string &headers, | |
| 28 uint32 length, | |
| 29 uint32 last_modified, | |
| 30 bool request_is_seekable) { | |
| 31 headers_ = headers; | |
| 32 NPP id = instance_->npp(); | |
| 33 stream_.end = length; | |
| 34 stream_.lastmodified = last_modified; | |
| 35 stream_.pdata = 0; | |
| 36 stream_.ndata = id->ndata; | |
| 37 stream_.notifyData = notify_data_; | |
| 38 if (!headers_.empty()) | |
| 39 stream_.headers = headers_.c_str(); | |
| 40 | |
| 41 bool seekable_stream = false; | |
| 42 if (request_is_seekable) { | |
| 43 std::string headers_lc = StringToLowerASCII(headers); | |
| 44 if (headers_lc.find("accept-ranges: bytes") != std::string::npos) { | |
| 45 seekable_stream = true; | |
| 46 } | |
| 47 } | |
| 48 | |
| 49 const char *char_mime_type = "application/x-unknown-content-type"; | |
| 50 std::string temp_mime_type; | |
| 51 if (!mime_type.empty()) { | |
| 52 char_mime_type = mime_type.c_str(); | |
| 53 } else { | |
| 54 GURL gurl(stream_.url); | |
| 55 | |
| 56 #if defined(OS_WIN) | |
| 57 FilePath path(UTF8ToWide(gurl.path())); | |
| 58 #elif defined(OS_POSIX) | |
| 59 FilePath path(gurl.path()); | |
| 60 #endif | |
| 61 if (net::GetMimeTypeFromFile(path, &temp_mime_type)) | |
| 62 char_mime_type = temp_mime_type.c_str(); | |
| 63 } | |
| 64 | |
| 65 // Silverlight expects a valid mime type | |
| 66 DCHECK(strlen(char_mime_type) != 0); | |
| 67 NPError err = instance_->NPP_NewStream((NPMIMEType)char_mime_type, | |
| 68 &stream_, seekable_stream, | |
| 69 &requested_plugin_mode_); | |
| 70 if (err != NPERR_NO_ERROR) { | |
| 71 Notify(err); | |
| 72 return false; | |
| 73 } | |
| 74 | |
| 75 opened_ = true; | |
| 76 | |
| 77 if (requested_plugin_mode_ == NP_SEEK) { | |
| 78 seekable_stream_ = true; | |
| 79 } | |
| 80 // If the plugin has requested certain modes, then we need a copy | |
| 81 // of this file on disk. Open it and save it as we go. | |
| 82 if (requested_plugin_mode_ == NP_ASFILEONLY || | |
| 83 requested_plugin_mode_ == NP_ASFILE) { | |
| 84 if (OpenTempFile() == false) | |
| 85 return false; | |
| 86 } | |
| 87 | |
| 88 mime_type_ = char_mime_type; | |
| 89 return true; | |
| 90 } | |
| 91 | |
| 92 int PluginStream::Write(const char *buffer, const int length, | |
| 93 int data_offset) { | |
| 94 // There may be two streams to write to - the plugin and the file. | |
| 95 // It is unclear what to do if we cannot write to both. The rules of | |
| 96 // this function are that the plugin must consume at least as many | |
| 97 // bytes as returned by the WriteReady call. So, we will attempt to | |
| 98 // write that many to both streams. If we can't write that many bytes | |
| 99 // to each stream, we'll return failure. | |
| 100 | |
| 101 DCHECK(opened_); | |
| 102 if (WriteToFile(buffer, length) && | |
| 103 WriteToPlugin(buffer, length, data_offset)) | |
| 104 return length; | |
| 105 | |
| 106 return -1; | |
| 107 } | |
| 108 | |
| 109 bool PluginStream::WriteToFile(const char *buf, size_t length) { | |
| 110 // For ASFILEONLY, ASFILE, and SEEK modes, we need to write | |
| 111 // to the disk | |
| 112 if (TempFileIsValid() && | |
| 113 (requested_plugin_mode_ == NP_ASFILE || | |
| 114 requested_plugin_mode_ == NP_ASFILEONLY) ) { | |
| 115 size_t totalBytesWritten = 0, bytes; | |
| 116 do { | |
| 117 bytes = WriteBytes(buf, length); | |
| 118 totalBytesWritten += bytes; | |
| 119 } while (bytes > 0U && totalBytesWritten < length); | |
| 120 | |
| 121 if (totalBytesWritten != length) | |
| 122 return false; | |
| 123 } | |
| 124 | |
| 125 return true; | |
| 126 } | |
| 127 | |
| 128 bool PluginStream::WriteToPlugin(const char *buf, const int length, | |
| 129 const int data_offset) { | |
| 130 // For NORMAL and ASFILE modes, we send the data to the plugin now | |
| 131 if (requested_plugin_mode_ != NP_NORMAL && | |
| 132 requested_plugin_mode_ != NP_ASFILE && | |
| 133 requested_plugin_mode_ != NP_SEEK) | |
| 134 return true; | |
| 135 | |
| 136 int written = TryWriteToPlugin(buf, length, data_offset); | |
| 137 if (written == -1) | |
| 138 return false; | |
| 139 | |
| 140 if (written < length) { | |
| 141 // Buffer the remaining data. | |
| 142 size_t remaining = length - written; | |
| 143 size_t previous_size = delivery_data_.size(); | |
| 144 delivery_data_.resize(previous_size + remaining); | |
| 145 data_offset_ = data_offset; | |
| 146 memcpy(&delivery_data_[previous_size], buf + written, remaining); | |
| 147 MessageLoop::current()->PostTask(FROM_HERE, NewRunnableMethod( | |
| 148 this, &PluginStream::OnDelayDelivery)); | |
| 149 } | |
| 150 | |
| 151 return true; | |
| 152 } | |
| 153 | |
| 154 void PluginStream::OnDelayDelivery() { | |
| 155 // It is possible that the plugin stream may have closed before the task | |
| 156 // was hit. | |
| 157 if (!opened_) { | |
| 158 return; | |
| 159 } | |
| 160 | |
| 161 int size = static_cast<int>(delivery_data_.size()); | |
| 162 int written = TryWriteToPlugin(&delivery_data_.front(), size, | |
| 163 data_offset_); | |
| 164 if (written > 0) { | |
| 165 // Remove the data that we already wrote. | |
| 166 delivery_data_.erase(delivery_data_.begin(), | |
| 167 delivery_data_.begin() + written); | |
| 168 } | |
| 169 } | |
| 170 | |
| 171 int PluginStream::TryWriteToPlugin(const char *buf, const int length, | |
| 172 const int data_offset) { | |
| 173 int byte_offset = 0; | |
| 174 | |
| 175 if (data_offset > 0) | |
| 176 data_offset_ = data_offset; | |
| 177 | |
| 178 while (byte_offset < length) { | |
| 179 int bytes_remaining = length - byte_offset; | |
| 180 int bytes_to_write = instance_->NPP_WriteReady(&stream_); | |
| 181 if (bytes_to_write > bytes_remaining) | |
| 182 bytes_to_write = bytes_remaining; | |
| 183 | |
| 184 if (bytes_to_write == 0) | |
| 185 return byte_offset; | |
| 186 | |
| 187 int bytes_consumed = instance_->NPP_Write( | |
| 188 &stream_, data_offset_, bytes_to_write, | |
| 189 const_cast<char*>(buf + byte_offset)); | |
| 190 if (bytes_consumed < 0) { | |
| 191 // The plugin failed, which means that we need to close the stream. | |
| 192 Close(NPRES_NETWORK_ERR); | |
| 193 return -1; | |
| 194 } | |
| 195 if (bytes_consumed == 0) { | |
| 196 // The plugin couldn't take all of the data now. | |
| 197 return byte_offset; | |
| 198 } | |
| 199 | |
| 200 // The plugin might report more that we gave it. | |
| 201 bytes_consumed = std::min(bytes_consumed, bytes_to_write); | |
| 202 | |
| 203 data_offset_ += bytes_consumed; | |
| 204 byte_offset += bytes_consumed; | |
| 205 } | |
| 206 | |
| 207 if (close_on_write_data_) | |
| 208 Close(NPRES_DONE); | |
| 209 | |
| 210 return length; | |
| 211 } | |
| 212 | |
| 213 bool PluginStream::Close(NPReason reason) { | |
| 214 if (opened_ == true) { | |
| 215 opened_ = false; | |
| 216 | |
| 217 if (delivery_data_.size()) { | |
| 218 if (reason == NPRES_DONE) { | |
| 219 // There is more data to be streamed, don't destroy the stream now. | |
| 220 close_on_write_data_ = true; | |
| 221 return true; | |
| 222 } else { | |
| 223 // Stop any pending data from being streamed | |
| 224 delivery_data_.resize(0); | |
| 225 } | |
| 226 } | |
| 227 | |
| 228 // If we have a temp file, be sure to close it. | |
| 229 // Also, allow the plugin to access it now. | |
| 230 if (TempFileIsValid()) { | |
| 231 CloseTempFile(); | |
| 232 if (reason == NPRES_DONE) | |
| 233 WriteAsFile(); | |
| 234 } | |
| 235 | |
| 236 if (stream_.ndata != NULL) { | |
| 237 // Stream hasn't been closed yet. | |
| 238 NPError err = instance_->NPP_DestroyStream(&stream_, reason); | |
| 239 DCHECK(err == NPERR_NO_ERROR); | |
| 240 } | |
| 241 } | |
| 242 | |
| 243 Notify(reason); | |
| 244 return true; | |
| 245 } | |
| 246 | |
| 247 webkit_glue::WebPluginResourceClient* PluginStream::AsResourceClient() { | |
| 248 return NULL; | |
| 249 } | |
| 250 | |
| 251 void PluginStream::Notify(NPReason reason) { | |
| 252 if (notify_needed_) { | |
| 253 instance_->NPP_URLNotify(stream_.url, reason, notify_data_); | |
| 254 notify_needed_ = false; | |
| 255 } | |
| 256 } | |
| 257 | |
| 258 } // namespace NPAPI | |
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Chromium Code Reviews
Issue 6012002:
Move the NPAPI files from webkit/glue/plugins to webkit/plugins/npapi and put... (Closed)
Base URL: svn://chrome-svn/chrome/trunk/src/