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-rw-r--r--http-client/http_client.cc59
1 files changed, 59 insertions, 0 deletions
diff --git a/http-client/http_client.cc b/http-client/http_client.cc
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+/*
+ * Copyright (c) 2017 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "http_client.h"
+
+#include <curl/curl.h>
+#include <sstream>
+#include <iostream>
+
+using namespace std;
+
+size_t write_data(void *ptr, size_t size, size_t nmemb, void *stream) {
+ ((ostream*) stream)->write((const char*)ptr, size * nmemb);
+ return size * nmemb;
+}
+
+HTTPClient::HTTPClient() {
+ curl_ = curl_easy_init();
+}
+
+HTTPClient::~HTTPClient() {
+ curl_easy_cleanup(curl_);
+}
+
+bool HTTPClient::download(const std::string& url, std::ostream& out) {
+ curl_easy_setopt(curl_, CURLOPT_URL, url.c_str());
+
+ /* example.com is redirected, so we tell libcurl to follow redirection */
+ curl_easy_setopt(curl_, CURLOPT_FOLLOWLOCATION, 1L);
+ curl_easy_setopt(curl_, CURLOPT_NOSIGNAL, 1);
+ curl_easy_setopt(curl_, CURLOPT_ACCEPT_ENCODING, "deflate");
+
+ curl_easy_setopt(curl_, CURLOPT_WRITEFUNCTION, write_data);
+ curl_easy_setopt(curl_, CURLOPT_WRITEDATA, &out);
+
+ /* Perform the request, res will get the return code */
+ CURLcode res = curl_easy_perform(curl_);
+
+ /* Check for errors */
+ if (res != CURLE_OK) {
+ fprintf(stderr, "curl_easy_perform() failed: %s\n",
+ curl_easy_strerror(res));
+ return false;
+ }
+
+ return true;
+} \ No newline at end of file