162 lines
5.1 KiB
C++
162 lines
5.1 KiB
C++
// Copyright (c) 2009 The Chromium Embedded Framework Authors. All rights
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// reserved. Use of this source code is governed by a BSD-style license that
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// can be found in the LICENSE file.
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#include "include/cef_wrapper.h"
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#include "resource_util.h"
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#include "scheme_test.h"
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#include "string_util.h"
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#include "util.h"
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#if defined(OS_WIN)
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#include "resource.h"
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#endif
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// Implementation of the schema handler for client:// requests.
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class ClientSchemeHandler : public CefSchemeHandler
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{
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public:
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ClientSchemeHandler() : offset_(0) {}
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// Process the request. All response generation should take place in this
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// method. If there is no response set |response_length| to zero or return
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// false and ReadResponse() will not be called. If the response length is not
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// known set |response_length| to -1 and ReadResponse() will be called until
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// it returns false or until the value of |bytes_read| is set to 0. If the
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// response length is known set |response_length| to a positive value and
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// ReadResponse() will be called until it returns false, the value of
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// |bytes_read| is set to 0 or the specified number of bytes have been read.
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// Use the |response| object to set the mime type, http status code and
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// optional header values for the response and return true. To redirect the
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// request to a new URL set |redirectUrl| to the new URL and return true.
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virtual bool ProcessRequest(CefRefPtr<CefRequest> request,
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CefString& redirectUrl,
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CefRefPtr<CefResponse> response,
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int* response_length)
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{
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REQUIRE_IO_THREAD();
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bool handled = false;
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AutoLock lock_scope(this);
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std::string url = request->GetURL();
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if(strstr(url.c_str(), "handler.html") != NULL) {
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// Build the response html
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data_ = "<html><head><title>Client Scheme Handler</title></head><body>"
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"This contents of this page page are served by the "
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"ClientSchemeHandler class handling the client:// protocol."
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"<br/>You should see an image:"
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"<br/><img src=\"client://tests/client.png\"><pre>";
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// Output a string representation of the request
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std::string dump;
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DumpRequestContents(request, dump);
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data_.append(dump);
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data_.append("</pre><br/>Try the test form:"
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"<form method=\"POST\" action=\"handler.html\">"
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"<input type=\"text\" name=\"field1\">"
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"<input type=\"text\" name=\"field2\">"
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"<input type=\"submit\">"
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"</form></body></html>");
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handled = true;
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// Set the resulting mime type
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response->SetMimeType("text/html");
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response->SetStatus(200);
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}
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else if(strstr(url.c_str(), "client.png") != NULL) {
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// Load the response image
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#if defined(OS_WIN)
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DWORD dwSize;
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LPBYTE pBytes;
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if(LoadBinaryResource(IDS_LOGO, dwSize, pBytes)) {
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data_ = std::string(reinterpret_cast<const char*>(pBytes), dwSize);
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handled = true;
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// Set the resulting mime type
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response->SetMimeType("image/jpg");
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response->SetStatus(200);
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}
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#elif defined(OS_MACOSX)
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if(LoadBinaryResource("logo.png", data_)) {
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handled = true;
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response->SetMimeType("image/png");
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response->SetStatus(200);
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}
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#endif
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}
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// Set the resulting response length
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*response_length = data_.length();
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return handled;
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}
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// Cancel processing of the request.
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virtual void Cancel()
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{
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REQUIRE_IO_THREAD();
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}
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// Copy up to |bytes_to_read| bytes into |data_out|. If the copy succeeds
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// set |bytes_read| to the number of bytes copied and return true. If the
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// copy fails return false and ReadResponse() will not be called again.
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virtual bool ReadResponse(void* data_out, int bytes_to_read,
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int* bytes_read)
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{
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REQUIRE_IO_THREAD();
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bool has_data = false;
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*bytes_read = 0;
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AutoLock lock_scope(this);
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if(offset_ < data_.length()) {
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// Copy the next block of data into the buffer.
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int transfer_size =
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std::min(bytes_to_read, static_cast<int>(data_.length() - offset_));
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memcpy(data_out, data_.c_str() + offset_, transfer_size);
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offset_ += transfer_size;
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*bytes_read = transfer_size;
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has_data = true;
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}
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return has_data;
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}
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private:
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std::string data_;
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size_t offset_;
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IMPLEMENT_REFCOUNTING(ClientSchemeHandler);
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IMPLEMENT_LOCKING(ClientSchemeHandler);
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};
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// Implementation of the factory for for creating schema handlers.
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class ClientSchemeHandlerFactory : public CefSchemeHandlerFactory
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{
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public:
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// Return a new scheme handler instance to handle the request.
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virtual CefRefPtr<CefSchemeHandler> Create()
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{
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REQUIRE_IO_THREAD();
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return new ClientSchemeHandler();
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}
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IMPLEMENT_REFCOUNTING(ClientSchemeHandlerFactory);
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};
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void InitSchemeTest()
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{
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CefRegisterScheme("client", "tests", true, new ClientSchemeHandlerFactory());
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}
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void RunSchemeTest(CefRefPtr<CefBrowser> browser)
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{
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browser->GetMainFrame()->LoadURL("client://tests/handler.html");
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}
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