text: /*
   * Copyright 2016 Google Inc.
   *
   * Use of this source code is governed by a BSD-style license that can be
   * found in the LICENSE file.
   */
  
  #include "UrlHandler.h"
  
  #include "microhttpd.h"
  #include "../Request.h"
  #include "../Response.h"
  
  using namespace Response;
  
  bool InfoHandler::canHandle(const char* method, const char* url) {
      const char* kBaseName = "/info";
      return 0 == strcmp(method, MHD_HTTP_METHOD_GET) &&
             0 == strncmp(url, kBaseName, strlen(kBaseName));
  }
  
  int InfoHandler::handle(Request* request, MHD_Connection* connection,
                          const char* url, const char* method,
                          const char* upload_data, size_t* upload_data_size) {
      SkTArray<SkString> commands;
      SkStrSplit(url, "/", &commands);
  
      if (!request->hasPicture() || commands.count() > 2) {
          return MHD_NO;
      }
  
      int n;
      // /info or /info/N
      if (commands.count() == 1) {
          n = request->getLastOp();
      } else {
          sscanf(commands[1].c_str(), "%d", &n);
      }
  
      sk_sp<SkData> data(request->getJsonInfo(n));
      return SendData(connection, data.get(), "application/json");
  }
  