Pepper: Nexe downloading out of the trusted plugin.

components/nacl/renderer/file_downloader.cc

Index: components/nacl/renderer/file_downloader.cc
diff --git a/components/nacl/renderer/file_downloader.cc b/components/nacl/renderer/file_downloader.cc
new file mode 100644
index 0000000000000000000000000000000000000000..b531c62101c870ddf1f503b1594cd9927772b0c0
--- /dev/null
+++ b/components/nacl/renderer/file_downloader.cc
@@ -0,0 +1,95 @@
+// Copyright 2014 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 "components/nacl/renderer/file_downloader.h"
+
+#include "base/callback.h"
+#include "base/platform_file.h"
+#include "components/nacl/renderer/nexe_load_manager.h"
+#include "net/base/net_errors.h"
+#include "third_party/WebKit/public/platform/WebURLError.h"
+#include "third_party/WebKit/public/platform/WebURLLoader.h"
+#include "third_party/WebKit/public/platform/WebURLResponse.h"
+
+namespace nacl {
+
+FileDownloader::FileDownloader(base::PlatformFile file,
+                               FileDownloaderCallback cb)
+    : file_(file),
+      cb_(cb),
+      status_code_(-1),
+      total_bytes_received_(-1),
+      total_bytes_to_be_received_(-1),
+      status_(SUCCESS) {
+  CHECK(!cb.is_null());
+}
+
+FileDownloader::FileDownloader(base::PlatformFile file,
+                               FileDownloaderCallback cb,
+                               ProgressCallback progress_cb)
+    : file_(file),
+      cb_(cb),
+      progress_cb_(progress_cb),
+      status_code_(-1),
+      total_bytes_received_(-1),
+      total_bytes_to_be_received_(-1),
+      status_(SUCCESS) {
+  CHECK(!cb.is_null());
+}
+
+FileDownloader::~FileDownloader() {
+}
+
+void FileDownloader::didReceiveResponse(
+    blink::WebURLLoader* loader,
+    const blink::WebURLResponse& response) {
+  if (response.httpStatusCode() != 200)
+    status_ = FAILED;
+  status_code_ = response.httpStatusCode();

[bbudge, 2014/05/12 22:32:06]

Move this before previous statement, and use it instead of accessor?

[teravest, 2014/05/13 17:05:32]

Done.

+
+  // Sets -1 if the content length is unknown. Send before issuing callback.
+  total_bytes_to_be_received_ = response.expectedContentLength();
+  if (!progress_cb_.is_null())
+    progress_cb_.Run(total_bytes_received_, total_bytes_to_be_received_);
+}
+
+void FileDownloader::didReceiveData(
+    blink::WebURLLoader* loader,
+    const char* data,
+    int data_length,
+    int encoded_data_length) {
+  if (status_ == SUCCESS) {
+    base::WritePlatformFileAtCurrentPos(file_, data, data_length);
+    total_bytes_received_ += data_length;
+    if (!progress_cb_.is_null())
+      progress_cb_.Run(total_bytes_received_, total_bytes_to_be_received_);
+  }
+}
+
+void FileDownloader::didFinishLoading(
+    blink::WebURLLoader* loader,
+    double finish_time,
+    int64_t total_encoded_data_length) {
+  cb_.Run(status_, status_code_);
+  delete this;
+}
+
+void FileDownloader::didFail(
+    blink::WebURLLoader* loader,
+    const blink::WebURLError& error) {
+  status_ = FAILED;
+  if (error.domain.equals(blink::WebString::fromUTF8(net::kErrorDomain))) {
+    switch (error.reason) {
+      case net::ERR_ACCESS_DENIED:
+      case net::ERR_NETWORK_ACCESS_DENIED:
+        status_ = ACCESS_DENIED;
+        break;
+    }
+  } else {
+    // It's a WebKit error.
+    status_ = ACCESS_DENIED;
+  }
+}
+
+}  // namespace nacl