// Copyright (c) 2010 The Chromium Embedded Framework Authors. All rights
// reserved. Use of this source code is governed by a BSD-style license that
// can be found in the LICENSE file.

#include "string_util.h"
#include <sstream>

void DumpRequestContents(CefRefPtr<CefRequest> request, std::string& str)
{
  std::stringstream ss;

  ss << "URL: " << std::string(request->GetURL());
  ss << "\nMethod: " << std::string(request->GetMethod());

  CefRequest::HeaderMap headerMap;
  request->GetHeaderMap(headerMap);
  if(headerMap.size() > 0) {
    ss << "\nHeaders:";
    CefRequest::HeaderMap::const_iterator it = headerMap.begin();
    for(; it != headerMap.end(); ++it) {
      ss << "\n\t" << std::string((*it).first) << ": " <<
          std::string((*it).second);
    }
  }

  CefRefPtr<CefPostData> postData = request->GetPostData();
  if(postData.get()) {
    CefPostData::ElementVector elements;
    postData->GetElements(elements);
    if(elements.size() > 0) {
      ss << "\nPost Data:";
      CefRefPtr<CefPostDataElement> element;
      CefPostData::ElementVector::const_iterator it = elements.begin();
      for(; it != elements.end(); ++it) {
        element = (*it);
        if(element->GetType() == PDE_TYPE_BYTES) {
          // the element is composed of bytes
          ss << "\n\tBytes: ";
          if(element->GetBytesCount() == 0)
            ss << "(empty)";
          else {
            // retrieve the data.
            size_t size = element->GetBytesCount();
            char* bytes = new char[size];
            element->GetBytes(size, bytes);
            ss << std::string(bytes, size);
            delete [] bytes;
          }
        } else if(element->GetType() == PDE_TYPE_FILE) {
          ss << "\n\tFile: " << std::string(element->GetFile());
        }
      }
    }
  }

  str = ss.str();
}

std::string StringReplace(const std::string& str, const std::string& from,
                          const std::string& to)
{
  std::string result = str;
  std::string::size_type pos = 0;
  std::string::size_type from_len = from.length();
  std::string::size_type to_len = to.length();
  do {
    pos = result.find(from, pos);
    if(pos != std::string::npos) {
      result.replace(pos, from_len, to);
      pos += to_len;
    }
  } while(pos != std::string::npos);
  return result;
}