5 files changed, 241 insertions, 0 deletions
diff --git a/apps/http-server/http-client/http_client.h b/apps/http-server/http-client/http_client.h
new file mode 100644
index 000000000..087a061ab
--- /dev/null
+++ b/apps/http-server/http-client/http_client.h
@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2019 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.
+ */
+
+#pragma once
+
+#include <string>
+
+#if defined(HICNET)
+#include <hicn/transport/http/facade.h>
+#elif defined(ICNET)
+#include <icnet/icnet_http_facade.h>
+#else
+#error "No ICN tranport library to which link against."
+#endif
+
+class HTTPClient {
+ public:
+  virtual ~HTTPClient() = default;
+
+  virtual void setTcp() = 0;
+
+  virtual bool download(const std::string &url, std::ostream &out) = 0;
+};
diff --git a/apps/http-server/http-client/http_client_icn.cc b/apps/http-server/http-client/http_client_icn.cc
new file mode 100644
index 000000000..327d2eed1
--- /dev/null
+++ b/apps/http-server/http-client/http_client_icn.cc
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2019 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_icn.h"
+#include "response.h"
+
+#include <curl/curl.h>
+
+using namespace std;
+
+HTTPClientIcn::HTTPClientIcn(uint32_t timeout) {
+  std::chrono::seconds _timeout(timeout);
+  connection_.setTimeout(_timeout);
+}
+
+void HTTPClientIcn::setTcp() {}
+
+HTTPClientIcn::~HTTPClientIcn() {}
+
+bool HTTPClientIcn::download(const std::string &url, std::ostream &out) {
+  connection_.get(url);
+  libl4::http::HTTPResponse r = connection_.response();
+  out.write(reinterpret_cast<const char *>(r.data()), r.size());
+  return true;
+}
diff --git a/apps/http-server/http-client/http_client_icn.h b/apps/http-server/http-client/http_client_icn.h
new file mode 100644
index 000000000..5586f6d62
--- /dev/null
+++ b/apps/http-server/http-client/http_client_icn.h
@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2019 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.
+ */
+
+#pragma once
+
+#include "http_client.h"
+
+#include <string>
+
+class HTTPClientIcn : public HTTPClient {
+public:
+  HTTPClientIcn(uint32_t timeout);
+
+  void setTcp();
+
+  ~HTTPClientIcn();
+
+  bool download(const std::string &url, std::ostream &out);
+
+private:
+  libl4::http::HTTPClientConnection connection_;
+};
diff --git a/apps/http-server/http-client/http_client_tcp.cc b/apps/http-server/http-client/http_client_tcp.cc
new file mode 100644
index 000000000..530f8ef95
--- /dev/null
+++ b/apps/http-server/http-client/http_client_tcp.cc
@@ -0,0 +1,99 @@
+/*
+ * Copyright (c) 2019 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_tcp.h"
+#include "response.h"
+
+#include <curl/curl.h>
+#include <iostream>
+#include <sstream>
+#include <stdio.h>
+#include <string.h>
+
+using namespace std;
+
+struct UserData {
+  void *out;
+  void *curl;
+  bool tcp;
+  bool first_time;
+};
+
+typedef struct UserData UserData;
+
+size_t write_data(void *ptr, size_t size, size_t nmemb, void *user_data) {
+
+  UserData *data = (UserData *)user_data;
+
+  if (data->first_time) {
+    double cl;
+
+    int res =
+        curl_easy_getinfo(data->curl, CURLINFO_CONTENT_LENGTH_DOWNLOAD, &cl);
+
+    if (res >= 0) {
+      *(ostream *)data->out
+          << "HTTP/1.0 200 OK\r\nContent-Length: " << std::size_t(cl)
+          << "\r\n\r\n";
+    }
+
+    data->first_time = false;
+  }
+
+  ((icn_httpserver::Response *)data->out)
+      ->write((const char *)ptr, size * nmemb);
+  //  ((icn_httpserver::Response*) data->out)->send();
+  return size * nmemb;
+}
+
+HTTPClientTcp::HTTPClientTcp() {
+  tcp_ = false;
+  first_time = true;
+  curl_ = curl_easy_init();
+}
+
+void HTTPClientTcp::setTcp() { tcp_ = true; }
+
+HTTPClientTcp::~HTTPClientTcp() { curl_easy_cleanup(curl_); }
+
+bool HTTPClientTcp::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);
+  UserData data;
+  data.out = &out;
+  data.curl = curl_;
+  data.tcp = tcp_;
+  data.first_time = first_time;
+
+  curl_easy_setopt(curl_, CURLOPT_WRITEDATA, &data);
+
+  /* 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;
+}
diff --git a/apps/http-server/http-client/http_client_tcp.h b/apps/http-server/http-client/http_client_tcp.h
new file mode 100644
index 000000000..9433e8a36
--- /dev/null
+++ b/apps/http-server/http-client/http_client_tcp.h
@@ -0,0 +1,36 @@
+/*
+ * Copyright (c) 2019 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.
+ */
+
+#pragma once
+
+#include "http_client.h"
+
+#include <string>
+
+class HTTPClientTcp : public HTTPClient {
+public:
+  HTTPClientTcp();
+
+  void setTcp();
+
+  ~HTTPClientTcp();
+
+  bool download(const std::string &url, std::ostream &out);
+
+private:
+  bool first_time;
+  bool tcp_;
+  void *curl_;
+};