Add chrome to the repository.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@15 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 570 insertions, 0 deletions

diff --git a/chrome/plugin/chrome_plugin_host.cc b/chrome/plugin/chrome_plugin_host.cc
new file mode 100644
index 0000000..5a3af53
--- /dev/null
+++ b/chrome/plugin/chrome_plugin_host.cc
@@ -0,0 +1,570 @@
+// Copyright 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "chrome/plugin/chrome_plugin_host.h"
+
+#include "base/file_util.h"
+#include "base/message_loop.h"
+#include "chrome/common/chrome_constants.h"
+#include "chrome/common/chrome_plugin_lib.h"
+#include "chrome/common/chrome_plugin_util.h"
+#include "chrome/plugin/plugin_process.h"
+#include "chrome/plugin/plugin_thread.h"
+#include "chrome/plugin/webplugin_proxy.h"
+#include "net/base/data_url.h"
+#include "webkit/glue/plugins/plugin_instance.h"
+#include "webkit/glue/resource_loader_bridge.h"
+#include "webkit/glue/resource_type.h"
+#include "webkit/glue/webkit_glue.h"
+
+namespace {
+
+using webkit_glue::ResourceLoaderBridge;
+
+// This class manages a network request made by the plugin, handling the
+// data as it comes in from the ResourceLoaderBridge and is requested by the
+// plugin.
+// NOTE: All methods must be called on the Plugin thread.
+class PluginRequestHandlerProxy
+    : public PluginHelper, public ResourceLoaderBridge::Peer {
+ public:
+  static PluginRequestHandlerProxy* FromCPRequest(CPRequest* request) {
+    return ScopableCPRequest::GetData<PluginRequestHandlerProxy*>(request);
+  }
+
+  PluginRequestHandlerProxy(ChromePluginLib* plugin,
+                            ScopableCPRequest* cprequest)
+      : PluginHelper(plugin), cprequest_(cprequest), response_data_offset_(0),
+        completed_(false), sync_(false), read_buffer_(NULL) {
+    load_flags_ = PluginResponseUtils::CPLoadFlagsToNetFlags(0);
+    cprequest_->data = this;  // see FromCPRequest().
+  }
+
+  ~PluginRequestHandlerProxy() {
+    if (bridge_.get() && !completed_) {
+      bridge_->Cancel();
+    }
+  }
+
+  // ResourceLoaderBridge::Peer
+  virtual void OnUploadProgress(uint64 position, uint64 size) {
+    CPRR_UploadProgressFunc upload_progress =
+        plugin_->functions().response_funcs->upload_progress;
+    if (upload_progress)
+      upload_progress(cprequest_.get(), position, size);
+  }
+
+  virtual void OnReceivedRedirect(const GURL& new_url) {
+    plugin_->functions().response_funcs->received_redirect(
+        cprequest_.get(), new_url.spec().c_str());
+  }
+
+  virtual void OnReceivedResponse(
+      const ResourceLoaderBridge::ResponseInfo& info) {
+    response_headers_ = info.headers;
+    plugin_->functions().response_funcs->start_completed(
+        cprequest_.get(), CPERR_SUCCESS);
+  }
+
+  virtual void OnReceivedData(const char* data, int len) {
+    response_data_.append(data, len);
+    if (read_buffer_) {
+      // If we had an asynchronous operation pending, read into that buffer
+      // and inform the plugin.
+      int rv = Read(read_buffer_, read_buffer_size_);
+      DCHECK(rv != CPERR_IO_PENDING);
+      read_buffer_ = NULL;
+      plugin_->functions().response_funcs->read_completed(
+          cprequest_.get(), rv);
+    }
+  }
+
+  virtual void OnCompletedRequest(const URLRequestStatus& status) {
+    completed_ = true;
+
+    if (!status.is_success()) {
+      // TODO(mpcomplete): better error codes
+      // Inform the plugin, calling the right function depending on whether
+      // we got the start_completed event or not.
+      if (response_headers_) {
+        plugin_->functions().response_funcs->start_completed(
+            cprequest_.get(), CPERR_FAILURE);
+      } else {
+        plugin_->functions().response_funcs->read_completed(
+            cprequest_.get(), CPERR_FAILURE);
+      }
+    } else if (read_buffer_) {
+      // The plugin was waiting for more data.  Inform him we're done.
+      read_buffer_ = NULL;
+      plugin_->functions().response_funcs->read_completed(
+          cprequest_.get(), CPERR_SUCCESS);
+    }
+  }
+
+  virtual std::string GetURLForDebugging() {
+    return cprequest_->url;
+  }
+
+  void set_extra_headers(const std::string& headers) {
+    extra_headers_ = headers;
+  }
+  void set_load_flags(uint32 flags) {
+    load_flags_ = flags;
+  }
+  void set_sync(bool sync) {
+    sync_ = sync;
+  }
+  void AppendDataToUpload(const char* bytes, int bytes_len) {
+    upload_content_.push_back(net::UploadData::Element());
+    upload_content_.back().SetToBytes(bytes, bytes_len);
+  }
+
+  void AppendFileToUpload(const std::wstring &filepath) {
+    AppendFileRangeToUpload(filepath, 0, kuint64max);
+  }
+
+  void AppendFileRangeToUpload(const std::wstring &filepath,
+                               uint64 offset, uint64 length) {
+    upload_content_.push_back(net::UploadData::Element());
+    upload_content_.back().SetToFilePathRange(filepath, offset, length);
+  }
+
+  CPError Start() {
+    bridge_.reset(
+        PluginThread::GetPluginThread()->resource_dispatcher()->CreateBridge(
+            cprequest_->method,
+            GURL(cprequest_->url),
+            GURL(cprequest_->url),  // TODO(jackson): policy url?
+            GURL(),  // TODO(mpcomplete): referrer?
+            extra_headers_,
+            load_flags_,
+            GetCurrentProcessId(),
+            ResourceType::OBJECT,
+            false,  // TODO (jcampan): mixed-content?
+            cprequest_->context));
+    if (!bridge_.get())
+      return CPERR_FAILURE;
+
+    for (size_t i = 0; i < upload_content_.size(); ++i) {
+      switch (upload_content_[i].type()) {
+        case net::UploadData::TYPE_BYTES: {
+          const std::vector<char>& bytes = upload_content_[i].bytes();
+          bridge_->AppendDataToUpload(&bytes[0],
+                                      static_cast<int>(bytes.size()));
+          break;
+        }
+        case net::UploadData::TYPE_FILE: {
+          bridge_->AppendFileRangeToUpload(
+              upload_content_[i].file_path(),
+              upload_content_[i].file_range_offset(),
+              upload_content_[i].file_range_length());
+          break;
+        }
+        default: {
+          NOTREACHED() << "Unknown UploadData::Element type";
+        }
+      }
+    }
+
+    if (sync_) {
+      ResourceLoaderBridge::SyncLoadResponse response;
+      bridge_->SyncLoad(&response);
+      response_headers_ = response.headers;
+      response_data_ = response.data;
+      completed_ = true;
+      return response.status.is_success() ? CPERR_SUCCESS : CPERR_FAILURE;
+    } else {
+      if (!bridge_->Start(this)) {
+        bridge_.reset();
+        return CPERR_FAILURE;
+      }
+      return CPERR_IO_PENDING;
+    }
+  }
+
+  int GetResponseInfo(CPResponseInfoType type, void* buf, uint32 buf_size) {
+    return PluginResponseUtils::GetResponseInfo(
+        response_headers_, type, buf, buf_size);
+  }
+
+  int Read(void* buf, uint32 buf_size) {
+    uint32 avail =
+        static_cast<uint32>(response_data_.size()) - response_data_offset_;
+    uint32 count = buf_size;
+    if (count > avail)
+      count = avail;
+
+    int rv = CPERR_FAILURE;
+    if (count) {
+      // Data is ready now.
+      memcpy(buf, &response_data_[0] + response_data_offset_, count);
+      response_data_offset_ += count;
+    } else if (!completed_) {
+      read_buffer_ = buf;
+      read_buffer_size_ = buf_size;
+      DCHECK(!sync_);
+      return CPERR_IO_PENDING;
+    }
+
+    if (response_data_.size() == response_data_offset_) {
+      // Simple optimization for large requests.  Generally the consumer will
+      // read the data faster than it comes in, so we can clear our buffer
+      // any time it has all been read.
+      response_data_.clear();
+      response_data_offset_ = 0;
+    }
+
+    read_buffer_ = NULL;
+    return count;
+  }
+
+ private:
+  scoped_ptr<ScopableCPRequest> cprequest_;
+  scoped_ptr<ResourceLoaderBridge> bridge_;
+  std::vector<net::UploadData::Element> upload_content_;
+  std::string extra_headers_;
+  uint32 load_flags_;
+  bool sync_;
+
+  scoped_refptr<net::HttpResponseHeaders> response_headers_;
+  std::string response_data_;
+  int response_data_offset_;
+  bool completed_;
+  void* read_buffer_;
+  uint32 read_buffer_size_;
+};
+
+//
+// Generic functions
+//
+
+void STDCALL CPB_SetKeepProcessAlive(CPID id, CPBool keep_alive) {
+  CHECK(ChromePluginLib::IsPluginThread());
+  static bool g_keep_process_alive = false;
+  bool desired_value = keep_alive ? true : false;  // smash to bool
+  if (desired_value != g_keep_process_alive) {
+    g_keep_process_alive = desired_value;
+    if (g_keep_process_alive)
+      PluginProcess::AddRefProcess();
+    else
+      PluginProcess::ReleaseProcess();
+  }
+}
+
+CPError STDCALL CPB_GetCookies(CPID id, CPBrowsingContext context,
+                               const char* url, char** cookies) {
+  CHECK(ChromePluginLib::IsPluginThread());
+  std::string cookies_str;
+  PluginThread::GetPluginThread()->Send(
+      new PluginProcessHostMsg_GetCookies(context, GURL(url), &cookies_str));
+  *cookies = CPB_StringDup(CPB_Alloc, cookies_str);
+  return CPERR_SUCCESS;
+}
+
+CPError STDCALL CPB_ShowHtmlDialogModal(
+    CPID id, CPBrowsingContext context, const char* url, int width, int height,
+    const char* json_arguments, char** json_retval) {
+  CHECK(ChromePluginLib::IsPluginThread());
+
+  WebPluginProxy* webplugin = WebPluginProxy::FromCPBrowsingContext(context);
+  if (!webplugin)
+    return CPERR_INVALID_PARAMETER;
+
+  std::string retval_str;
+  webplugin->ShowModalHTMLDialog(
+      GURL(url), width, height, json_arguments, &retval_str);
+  *json_retval = CPB_StringDup(CPB_Alloc, retval_str);
+  return CPERR_SUCCESS;
+}
+
+CPError STDCALL CPB_ShowHtmlDialog(
+    CPID id, CPBrowsingContext context, const char* url, int width, int height,
+    const char* json_arguments, void* plugin_context) {
+  // TODO(mpcomplete): support non-modal dialogs.
+  return CPERR_FAILURE;
+}
+
+CPError STDCALL CPB_GetCommandLineArguments(
+    CPID id, CPBrowsingContext context, const char* url, char** arguments) {
+  CHECK(ChromePluginLib::IsPluginThread());
+  std::string arguments_str;
+  CPError rv = CPB_GetCommandLineArgumentsCommon(url, &arguments_str);
+  if (rv == CPERR_SUCCESS)
+    *arguments = CPB_StringDup(CPB_Alloc, arguments_str);
+  return rv;
+}
+
+CPBrowsingContext STDCALL CPB_GetBrowsingContextFromNPP(NPP npp) {
+  if (!npp)
+    return CPERR_INVALID_PARAMETER;
+
+  NPAPI::PluginInstance* instance =
+      static_cast<NPAPI::PluginInstance *>(npp->ndata);
+  WebPluginProxy* webplugin =
+      static_cast<WebPluginProxy*>(instance->webplugin());
+
+  return webplugin->GetCPBrowsingContext();
+}
+
+int STDCALL CPB_GetBrowsingContextInfo(
+    CPID id, CPBrowsingContext context, CPBrowsingContextInfoType type,
+    void* buf, uint32 buf_size) {
+  CHECK(ChromePluginLib::IsPluginThread());
+
+  switch (type) {
+  case CPBROWSINGCONTEXT_DATA_DIR_PTR: {
+    if (buf_size < sizeof(char*))
+      return sizeof(char*);
+
+    std::wstring wretval;
+    PluginThread::GetPluginThread()->Send(
+        new PluginProcessHostMsg_GetPluginDataDir(&wretval));
+    file_util::AppendToPath(&wretval, chrome::kChromePluginDataDirname);
+    *static_cast<char**>(buf) = CPB_StringDup(CPB_Alloc, WideToUTF8(wretval));
+    return CPERR_SUCCESS;
+    }
+  case CPBROWSINGCONTEXT_UI_LOCALE_PTR: {
+    if (buf_size < sizeof(char*))
+      return sizeof(char*);
+
+    std::wstring wretval = webkit_glue::GetWebKitLocale();
+    *static_cast<char**>(buf) = CPB_StringDup(CPB_Alloc, WideToUTF8(wretval));
+    return CPERR_SUCCESS;
+    }
+  }
+
+  return CPERR_FAILURE;
+}
+
+CPError STDCALL CPB_AddUICommand(CPID id, int command) {
+  // Not implemented in the plugin process
+  return CPERR_FAILURE;
+}
+
+CPError STDCALL CPB_HandleCommand(
+    CPID id, CPBrowsingContext context, int command, void *data) {
+  // Not implemented in the plugin process
+  return CPERR_FAILURE;
+}
+
+//
+// Functions related to network interception
+//
+
+void STDCALL CPB_EnableRequestIntercept(
+    CPID id, const char** schemes, uint32 num_schemes) {
+  // We ignore requests by the plugin to intercept from this process.  That's
+  // handled in the browser process.
+}
+
+void STDCALL CPRR_ReceivedRedirect(CPRequest* request, const char* new_url) {
+  NOTREACHED() << "Network interception should not happen in plugin process.";
+}
+
+void STDCALL CPRR_StartCompleted(CPRequest* request, CPError result) {
+  NOTREACHED() << "Network interception should not happen in plugin process.";
+}
+
+void STDCALL CPRR_ReadCompleted(CPRequest* request, int bytes_read) {
+  NOTREACHED() << "Network interception should not happen in plugin process.";
+}
+
+void STDCALL CPRR_UploadProgress(CPRequest* request, uint64 pos, uint64 size) {
+  NOTREACHED() << "Network interception should not happen in plugin process.";
+}
+
+//
+// Functions related to serving network requests to the plugin
+//
+
+CPError STDCALL CPB_CreateRequest(CPID id, CPBrowsingContext context,
+                                  const char* method, const char* url,
+                                  CPRequest** request) {
+  CHECK(ChromePluginLib::IsPluginThread());
+  ChromePluginLib* plugin = ChromePluginLib::FromCPID(id);
+  CHECK(plugin);
+
+  ScopableCPRequest* cprequest = new ScopableCPRequest(url, method, context);
+  PluginRequestHandlerProxy* handler =
+      new PluginRequestHandlerProxy(plugin, cprequest);
+
+  *request = cprequest;
+  return CPERR_SUCCESS;
+}
+
+CPError STDCALL CPR_StartRequest(CPRequest* request) {
+  CHECK(ChromePluginLib::IsPluginThread());
+  PluginRequestHandlerProxy* handler =
+      PluginRequestHandlerProxy::FromCPRequest(request);
+  CHECK(handler);
+  return handler->Start();
+}
+
+void STDCALL CPR_EndRequest(CPRequest* request, CPError reason) {
+  CHECK(ChromePluginLib::IsPluginThread());
+  PluginRequestHandlerProxy* handler =
+      PluginRequestHandlerProxy::FromCPRequest(request);
+  delete handler;
+}
+
+void STDCALL CPR_SetExtraRequestHeaders(CPRequest* request,
+                                        const char* headers) {
+  CHECK(ChromePluginLib::IsPluginThread());
+  PluginRequestHandlerProxy* handler =
+      PluginRequestHandlerProxy::FromCPRequest(request);
+  CHECK(handler);
+  handler->set_extra_headers(headers);
+}
+
+void STDCALL CPR_SetRequestLoadFlags(CPRequest* request, uint32 flags) {
+  CHECK(ChromePluginLib::IsPluginThread());
+  PluginRequestHandlerProxy* handler =
+      PluginRequestHandlerProxy::FromCPRequest(request);
+  CHECK(handler);
+
+  if (flags & CPREQUESTLOAD_SYNCHRONOUS) {
+    handler->set_sync(true);
+  }
+
+  uint32 net_flags = PluginResponseUtils::CPLoadFlagsToNetFlags(flags);
+  handler->set_load_flags(net_flags);
+}
+
+void STDCALL CPR_AppendDataToUpload(CPRequest* request, const char* bytes,
+                                    int bytes_len) {
+  CHECK(ChromePluginLib::IsPluginThread());
+  PluginRequestHandlerProxy* handler =
+      PluginRequestHandlerProxy::FromCPRequest(request);
+  CHECK(handler);
+  handler->AppendDataToUpload(bytes, bytes_len);
+}
+
+CPError STDCALL CPR_AppendFileToUpload(CPRequest* request, const char* filepath,
+                                       uint64 offset, uint64 length) {
+  CHECK(ChromePluginLib::IsPluginThread());
+  PluginRequestHandlerProxy* handler =
+      PluginRequestHandlerProxy::FromCPRequest(request);
+  CHECK(handler);
+
+  if (!length) length = kuint64max;
+  std::wstring wfilepath(UTF8ToWide(filepath));
+  handler->AppendFileRangeToUpload(wfilepath, offset, length);
+  return CPERR_SUCCESS;
+}
+
+int STDCALL CPR_GetResponseInfo(CPRequest* request, CPResponseInfoType type,
+                                void* buf, uint32 buf_size) {
+  CHECK(ChromePluginLib::IsPluginThread());
+  PluginRequestHandlerProxy* handler =
+      PluginRequestHandlerProxy::FromCPRequest(request);
+  CHECK(handler);
+  return handler->GetResponseInfo(type, buf, buf_size);
+}
+
+int STDCALL CPR_Read(CPRequest* request, void* buf, uint32 buf_size) {
+  CHECK(ChromePluginLib::IsPluginThread());
+  PluginRequestHandlerProxy* handler =
+      PluginRequestHandlerProxy::FromCPRequest(request);
+  CHECK(handler);
+  return handler->Read(buf, buf_size);
+}
+
+
+CPBool STDCALL CPB_IsPluginProcessRunning(CPID id) {
+  CHECK(ChromePluginLib::IsPluginThread());
+  return true;
+}
+
+CPProcessType STDCALL CPB_GetProcessType(CPID id) {
+  CHECK(ChromePluginLib::IsPluginThread());
+  return CP_PROCESS_PLUGIN;
+}
+
+CPError STDCALL CPB_SendMessage(CPID id, const void *data, uint32 data_len) {
+  CHECK(ChromePluginLib::IsPluginThread());
+  const uint8* data_ptr = static_cast<const uint8*>(data);
+  std::vector<uint8> v(data_ptr, data_ptr + data_len);
+  if (!PluginThread::GetPluginThread()->Send(
+          new PluginProcessHostMsg_PluginMessage(v))) {
+    return CPERR_FAILURE;
+  }
+  return CPERR_SUCCESS;
+}
+
+}  // namespace
+
+CPBrowserFuncs* GetCPBrowserFuncsForPlugin() {
+  static CPBrowserFuncs browser_funcs;
+  static CPRequestFuncs request_funcs;
+  static CPResponseFuncs response_funcs;
+  static bool initialized = false;
+  if (!initialized) {
+    initialized = true;
+
+    browser_funcs.size = sizeof(browser_funcs);
+    browser_funcs.version = CP_VERSION;
+    browser_funcs.enable_request_intercept = CPB_EnableRequestIntercept;
+    browser_funcs.create_request = CPB_CreateRequest;
+    browser_funcs.get_cookies = CPB_GetCookies;
+    browser_funcs.alloc = CPB_Alloc;
+    browser_funcs.free = CPB_Free;
+    browser_funcs.set_keep_process_alive = CPB_SetKeepProcessAlive;
+    browser_funcs.show_html_dialog = CPB_ShowHtmlDialog;
+    browser_funcs.show_html_dialog_modal = CPB_ShowHtmlDialogModal;
+    browser_funcs.is_plugin_process_running = CPB_IsPluginProcessRunning;
+    browser_funcs.get_process_type = CPB_GetProcessType;
+    browser_funcs.send_message = CPB_SendMessage;
+    browser_funcs.get_browsing_context_from_npp = CPB_GetBrowsingContextFromNPP;
+    browser_funcs.get_browsing_context_info = CPB_GetBrowsingContextInfo;
+    browser_funcs.get_command_line_arguments = CPB_GetCommandLineArguments;
+    browser_funcs.add_ui_command = CPB_AddUICommand;
+    browser_funcs.handle_command = CPB_HandleCommand;
+
+    browser_funcs.request_funcs = &request_funcs;
+    browser_funcs.response_funcs = &response_funcs;
+
+    request_funcs.size = sizeof(request_funcs);
+    request_funcs.start_request = CPR_StartRequest;
+    request_funcs.end_request = CPR_EndRequest;
+    request_funcs.set_extra_request_headers = CPR_SetExtraRequestHeaders;
+    request_funcs.set_request_load_flags = CPR_SetRequestLoadFlags;
+    request_funcs.append_data_to_upload = CPR_AppendDataToUpload;
+    request_funcs.get_response_info = CPR_GetResponseInfo;
+    request_funcs.read = CPR_Read;
+    request_funcs.append_file_to_upload = CPR_AppendFileToUpload;
+
+    response_funcs.size = sizeof(response_funcs);
+    response_funcs.received_redirect = CPRR_ReceivedRedirect;
+    response_funcs.start_completed = CPRR_StartCompleted;
+    response_funcs.read_completed = CPRR_ReadCompleted;
+    response_funcs.upload_progress = CPRR_UploadProgress;
+  }
+
+  return &browser_funcs;
+}