multipart/form-dataに対応(#56)

src/cocoatweet/api/interface/httpBase.h

@@ -12,7 +12,8 @@ protected:
   std::map<std::string, std::string> bodyParam_;
   std::string url_;
   std::string contentType_;
-  virtual void process(std::weak_ptr<CocoaTweet::OAuth::OAuth1> _oauth,
+  virtual void process(
+      std::weak_ptr<CocoaTweet::OAuth::OAuth1> _oauth,
       std::function<void(const unsigned int, const std::string&)> _callback) = 0;
   static size_t curlCallback_(char* _ptr, size_t _size, size_t _nmemb, std::string* _stream) {
     int realsize = _size * _nmemb;

src/cocoatweet/api/interface/httpPost.cc

@@ -34,12 +34,21 @@ void HttpPost::process(std::weak_ptr<CocoaTweet::OAuth::OAuth1> _oauth,
   // リクエストボディの構築
   std::string requestBody = "";
   {
+    if (contentType_ == "application/x-www-form-urlencoded") {
       std::vector<std::string> tmp;
       for (const auto& [key, value] : bodyParam_) {
         tmp.push_back(key + "=" + CocoaTweet::Util::urlEncode(value));
-    }
         requestBody = CocoaTweet::Util::join(tmp, "&");
       }
+    } else if (contentType_ == "multipart/form-data") {
+      for (const auto& [key, value] : bodyParam_) {
+        requestBody += (std::string("--") + "milkcocoa0902" + "\r\n");
+        requestBody +=
+            ("Content-Disposition: form-data; name=\"" + key + "\";\r\n\r\n" + value + "\r\n");
+      }
+      requestBody += (std::string("--") + "milkcocoa0902" + "--" + "\r\n");
+    }
+  }
 
   // ヘッダの構築
   std::string oauthHeader = "authorization: OAuth ";
@@ -74,7 +83,15 @@ std::cout << "requestBody : " << requestBody << std::endl;
     struct curl_slist* headers = NULL;
     // Authorizationをヘッダに追加
     headers = curl_slist_append(headers, oauthHeader.c_str());
-    headers = curl_slist_append(headers, ("Content-Type: " + contentType_).c_str());
+
+    std::string contentType = "";
+    if (contentType_ == "application/x-www-form-urlencoded") {
+      contentType = contentType_;
+    } else if (contentType_ == "multipart/form-data") {
+      contentType = contentType_ + "; boundary=milkcocoa0902";
+    }
+
+    headers = curl_slist_append(headers, ("Content-Type: " + contentType).c_str());
     curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
     res = curl_easy_perform(curl);
     curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &responseCode);