first commit

src/HttpClient.cpp

@@ -0,0 +1,90 @@
+#include "HttpClient.hpp"
+#include <curl/curl.h>
+#include <cstring>
+
+void HttpClient::globalInit() { curl_global_init(CURL_GLOBAL_DEFAULT); }
+void HttpClient::globalCleanup() { curl_global_cleanup(); }
+
+namespace {
+size_t writeCallback(char* ptr, size_t size, size_t nmemb, void* userdata) {
+    auto* out = static_cast<std::string*>(userdata);
+    out->append(ptr, size * nmemb);
+    return size * nmemb;
+}
+
+struct CurlHandle {
+    CURL* h;
+    CurlHandle() : h(curl_easy_init()) {}
+    ~CurlHandle() { if (h) curl_easy_cleanup(h); }
+};
+
+struct CurlSlist {
+    curl_slist* list = nullptr;
+    void append(const std::string& header) { list = curl_slist_append(list, header.c_str()); }
+    ~CurlSlist() { if (list) curl_slist_free_all(list); }
+};
+} // namespace
+
+HttpResponse HttpClient::get(const std::string& url,
+                              const std::map<std::string, std::string>& headers,
+                              long timeout_seconds) {
+    HttpResponse resp;
+    CurlHandle curl;
+    if (!curl.h) { resp.status = -1; return resp; }
+
+    CurlSlist slist;
+    for (const auto& [k, v] : headers) slist.append(k + ": " + v);
+
+    curl_easy_setopt(curl.h, CURLOPT_URL, url.c_str());
+    curl_easy_setopt(curl.h, CURLOPT_HTTPHEADER, slist.list);
+    curl_easy_setopt(curl.h, CURLOPT_WRITEFUNCTION, writeCallback);
+    curl_easy_setopt(curl.h, CURLOPT_WRITEDATA, &resp.body);
+    curl_easy_setopt(curl.h, CURLOPT_FOLLOWLOCATION, 1L);
+    curl_easy_setopt(curl.h, CURLOPT_TIMEOUT, timeout_seconds);
+    curl_easy_setopt(curl.h, CURLOPT_SSL_VERIFYPEER, 1L);
+    curl_easy_setopt(curl.h, CURLOPT_ACCEPT_ENCODING, ""); // accept gzip/deflate
+
+    CURLcode rc = curl_easy_perform(curl.h);
+    if (rc != CURLE_OK) {
+        resp.status = -1;
+        resp.body = curl_easy_strerror(rc);
+        return resp;
+    }
+    long code = 0;
+    curl_easy_getinfo(curl.h, CURLINFO_RESPONSE_CODE, &code);
+    resp.status = code;
+    return resp;
+}
+
+HttpResponse HttpClient::postJson(const std::string& url,
+                                   const std::string& json_body,
+                                   const std::map<std::string, std::string>& headers,
+                                   long timeout_seconds) {
+    HttpResponse resp;
+    CurlHandle curl;
+    if (!curl.h) { resp.status = -1; return resp; }
+
+    CurlSlist slist;
+    slist.append("Content-Type: application/json");
+    for (const auto& [k, v] : headers) slist.append(k + ": " + v);
+
+    curl_easy_setopt(curl.h, CURLOPT_URL, url.c_str());
+    curl_easy_setopt(curl.h, CURLOPT_HTTPHEADER, slist.list);
+    curl_easy_setopt(curl.h, CURLOPT_POSTFIELDS, json_body.c_str());
+    curl_easy_setopt(curl.h, CURLOPT_POSTFIELDSIZE, static_cast<long>(json_body.size()));
+    curl_easy_setopt(curl.h, CURLOPT_WRITEFUNCTION, writeCallback);
+    curl_easy_setopt(curl.h, CURLOPT_WRITEDATA, &resp.body);
+    curl_easy_setopt(curl.h, CURLOPT_TIMEOUT, timeout_seconds);
+    curl_easy_setopt(curl.h, CURLOPT_SSL_VERIFYPEER, 1L);
+
+    CURLcode rc = curl_easy_perform(curl.h);
+    if (rc != CURLE_OK) {
+        resp.status = -1;
+        resp.body = curl_easy_strerror(rc);
+        return resp;
+    }
+    long code = 0;
+    curl_easy_getinfo(curl.h, CURLINFO_RESPONSE_CODE, &code);
+    resp.status = code;
+    return resp;
+}