// Copyright (c) 2010 The Chromium 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 "webkit/plugins/npapi/test/plugin_test.h"

#include "base/string_util.h"
#include "base/strings/string_number_conversions.h"
#include "webkit/plugins/npapi/test/npapi_constants.h"

namespace NPAPIClient {

PluginTest::PluginTest(NPP id, NPNetscapeFuncs *host_functions) {
  id_ = id;
  id_->pdata = this;
  host_functions_ = host_functions;
  test_completed_ = false;
}

PluginTest::~PluginTest() {}

bool PluginTest::IsWindowless() const { return false; }

NPError PluginTest::New(uint16 mode, int16 argc, const char* argn[],
                        const char* argv[], NPSavedData* saved) {
  test_name_ = this->GetArgValue("name", argc, argn, argv);
  const char* id = this->GetArgValue("id", argc, argn, argv);
  if (id)  // NULL for NP_FULL
    test_id_ = id;
  return NPERR_NO_ERROR;
}

NPError PluginTest::Destroy() {
  return NPERR_NO_ERROR;
}

NPError PluginTest::SetWindow(NPWindow* pNPWindow) {
  return NPERR_NO_ERROR;
}

// It's a shame I have to implement URLEncode.  But, using webkit's
// or using chrome's means a ball of string of dlls and dependencies that
// is very very long.  After spending far too much time on it,
// I'll just encode it myself.  Too bad Microsoft doesn't implement
// this in a reusable way either.  Both webkit and chrome will
// end up using libicu, which is a string of dependencies we don't
// want.

inline unsigned char toHex(const unsigned char x) {
  return x > 9 ? (x + 'A' - 10) : (x + '0');
}

std::string URLEncode(const std::string &sIn) {
  std::string sOut;

  const size_t length = sIn.length();
  for (size_t idx = 0; idx < length;) {
    const char ch = sIn.at(idx);
    if (isalnum(ch)) {
      sOut.append(1, ch);
    } else if (isspace(ch) && ((ch != '\n') && (ch != '\r'))) {
      sOut.append(1, '+');
    } else {
      sOut.append(1, '%');
      sOut.append(1, toHex(ch>>4));
      sOut.append(1, toHex(ch%16));
    }
    idx++;
  }
  return sOut;
}

void PluginTest::SignalTestCompleted() {
  NPObject *window_obj = NULL;
  host_functions_->getvalue(id_, NPNVWindowNPObject, &window_obj);
  if (!window_obj)
    return;

  test_completed_ = true;
  // To signal test completion, we expect a couple of
  // javascript functions to be defined in the webpage
  // which hosts this plugin:
  //    onSuccess(test_name, test_id)
  //    onFailure(test_name, test_id, error_message)
  std::string script("javascript:");
  if (Succeeded()) {
    script.append("onSuccess(\"");
    script.append(test_name_);
    script.append("\",\"");
    script.append(test_id_);
    script.append("\");");
  } else {
    script.append("onFailure(\"");
    script.append(test_name_);
    script.append("\",\"");
    script.append(test_id_);
    script.append("\",\"");
    script.append(test_status_);
    script.append("\");");
  }

  NPString script_string;
  script_string.UTF8Characters = script.c_str();
  script_string.UTF8Length = static_cast<unsigned int>(script.length());

  NPVariant result_var;
  host_functions_->evaluate(id_, window_obj, &script_string, &result_var);
}

const char *PluginTest::GetArgValue(const char *name, const int16 argc,
                                    const char *argn[], const char *argv[]) {
  for (int idx = 0; idx < argc; idx++)
    if (base::strcasecmp(argn[idx], name) == 0)
      return argv[idx];
  return NULL;
}

void PluginTest::SetError(const std::string &msg) {
  test_status_.append(msg);
}

void PluginTest::ExpectStringLowerCaseEqual(const std::string &val1,
                                            const std::string &val2) {
  if (!LowerCaseEqualsASCII(val1, val2.c_str())) {
    std::string err;
    err = "Expected Equal for '";
    err.append(val1);
    err.append("' and '");
    err.append(val2);
    err.append("'");
    SetError(err);
  }
}

void PluginTest::ExpectAsciiStringNotEqual(const char *val1, const char *val2) {
  if (val1 == val2) {
    std::string err;
    err = "Expected Not Equal for '";
    err.append(val1);
    err.append("' and '");
    err.append(val2);
    err.append("'");
    SetError(err);
  }
}

void PluginTest::ExpectIntegerEqual(int val1, int val2) {
  if (val1 != val2) {
    std::string err;
    err = "Expected Equal for '";
    err.append(base::IntToString(val1));
    err.append("' and '");
    err.append(base::IntToString(val2));
    err.append("'");
    SetError(err);
  }
}

NPError PluginTest::NewStream(NPMIMEType type, NPStream* stream,
                              NPBool seekable, uint16* stype) {
  // There is no default action here.
  return NPERR_NO_ERROR;
}

int32 PluginTest::WriteReady(NPStream *stream) {
  // Take data in small chunks
  return 4096;
}

int32 PluginTest::Write(NPStream *stream, int32 offset, int32 len,
                           void *buffer) {
  // Pretend that we took all the data.
  return len;
}

NPError PluginTest::DestroyStream(NPStream *stream, NPError reason) {
  // There is no default action.
  return NPERR_NO_ERROR;
}

void PluginTest::StreamAsFile(NPStream* stream, const char* fname) {
  // There is no default action.
}

void PluginTest::URLNotify(const char* url, NPReason reason, void* data) {
  // There is no default action
}

int16 PluginTest::HandleEvent(void* event) {
  // There is no default action
  return 0;
}

void PluginTest::URLRedirectNotify(const char* url, int32_t status,
                                   void* notify_data) {
  // There is no default action
}

} // namespace NPAPIClient