| // 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 <fuchsia/net/http/cpp/fidl.h> |
| #include <lib/async-loop/cpp/loop.h> |
| #include <lib/async-loop/default.h> |
| #include <lib/sys/cpp/component_context.h> |
| #include <lib/syslog/cpp/macros.h> |
| |
| #include <string> |
| |
| #include "src/lib/fxl/macros.h" |
| |
| namespace examples { |
| |
| namespace http = ::fuchsia::net::http; |
| |
| class ResponsePrinter { |
| public: |
| void Run(async::Loop* loop, http::Response response) const { |
| if (response.has_error()) { |
| printf("Got error: %d\n", response.error()); |
| exit(1); |
| } else { |
| PrintResponse(response); |
| PrintResponseBody(response.body()); |
| } |
| |
| loop->Quit(); // All done! |
| } |
| |
| void PrintResponse(const http::Response& response) const { |
| printf(">>> Headers <<< \n"); |
| const auto& status_line = response.status_line(); |
| printf(" %s\n", std::string(status_line.begin(), status_line.end()).c_str()); |
| if (response.has_headers()) { |
| for (const auto& header : response.headers()) { |
| printf(" %s=%s\n", std::string(header.name.begin(), header.name.end()).c_str(), |
| std::string(header.value.begin(), header.value.end()).c_str()); |
| } |
| } |
| } |
| |
| void PrintResponseBody(const zx::socket& body) const { |
| // Read response body in blocking fashion. |
| printf(">>> Body <<<\n"); |
| |
| for (;;) { |
| char buf[512]; |
| size_t num_bytes = sizeof(buf); |
| zx_status_t result = body.read(0u, buf, num_bytes, &num_bytes); |
| |
| if (result == ZX_ERR_SHOULD_WAIT) { |
| body.wait_one(ZX_SOCKET_READABLE | ZX_SOCKET_PEER_CLOSED, zx::time::infinite(), nullptr); |
| } else if (result == ZX_ERR_PEER_CLOSED) { |
| // not an error |
| break; |
| } else if (result == ZX_OK) { |
| if (fwrite(buf, num_bytes, 1, stdout) != 1) { |
| printf("\nUnexpected error writing to file\n"); |
| break; |
| } |
| } else { |
| printf("\nUnexpected error reading response %d\n", result); |
| break; |
| } |
| } |
| |
| printf("\n>>> EOF <<<\n"); |
| } |
| }; |
| |
| class WGetApp { |
| public: |
| WGetApp(async::Loop* loop) |
| : loop_(loop), context_(sys::ComponentContext::CreateAndServeOutgoingDirectory()) { |
| loader_ = context_->svc()->Connect<http::Loader>(); |
| FX_DCHECK(loader_); |
| } |
| |
| bool Start(const std::vector<std::string>& args) { |
| if (args.size() == 1) { |
| printf("usage: %s url\n", args[0].c_str()); |
| return false; |
| } |
| std::string url(args[1]); |
| if (url.find("://") == std::string::npos) { |
| url.insert(0, "http://"); |
| } |
| printf("Loading: %s\n", url.c_str()); |
| |
| http::Request request; |
| request.set_url(url); |
| request.set_method("GET"); |
| |
| loader_->Fetch(std::move(request), [this](http::Response response) { |
| ResponsePrinter printer; |
| printer.Run(loop_, std::move(response)); |
| }); |
| return true; |
| } |
| |
| private: |
| async::Loop* const loop_; |
| std::unique_ptr<sys::ComponentContext> context_; |
| |
| http::LoaderPtr loader_; |
| }; |
| |
| } // namespace examples |
| |
| int main(int argc, const char** argv) { |
| std::vector<std::string> args(argv, argv + argc); |
| async::Loop loop(&kAsyncLoopConfigAttachToCurrentThread); |
| |
| examples::WGetApp app(&loop); |
| if (app.Start(args)) |
| loop.Run(); |
| |
| return 0; |
| } |