C++ SystemGlobals类代码示例

void DummySandbox::run() {
  while (!m_stopped) {
    try {
      char *argv[] = {"", NULL};
      execute_command_line_begin(1, argv, 0);

      DECLARE_THREAD_INFO;
      FRAME_INJECTION_FLAGS(empty_string, _, FrameInjection::PseudoMain);

      DSandboxInfo sandbox = m_proxy->getSandbox();
      string msg;
      if (m_inited) {
        SystemGlobals *g = (SystemGlobals *)get_global_variables();
        SourceRootInfo sri(sandbox.m_user, sandbox.m_name);
        if (sandbox.m_path.empty()) {
          sandbox.m_path = sri.path();
        }
        if (!sri.sandboxOn()) {
          msg = "Invalid sandbox was specified. "
            "PHP files may not be loaded properly.\n";
          // force HPHP_SANDBOX_ID to be set, so we can still talk to client
          g->GV(_SERVER).set("HPHP_SANDBOX_ID", sandbox.id());
        } else {
          sri.setServerVariables(g->GV(_SERVER));
        }

        std::string doc = getStartupDoc(sandbox);
        bool error; string errorMsg;
        bool ret = hphp_invoke(g_context.get(), doc, false, null_array, null,
                               "", "", "", error, errorMsg);
        if (!ret || error) {
          msg += "Unable to pre-load " + doc;
          if (!errorMsg.empty()) {
            msg += ": " + errorMsg;
          }
        }
      }

      m_inited = true;
      Debugger::RegisterSandbox(sandbox);
      Debugger::InterruptSessionStarted(NULL, msg.c_str());

      // Blocking until Ctrl-C is issued by end user and DebuggerProxy cannot
      // find a real sandbox thread to handle it.
      {
        Lock lock(this);
        while (!m_stopped && m_signum != CmdSignal::SignalBreak) {
          wait(1);
        }
        m_signum = CmdSignal::SignalNone;
      }
    } catch (const DebuggerException &e) {}
    execute_command_line_end(0, false, NULL);
  }
}

string& SourceRootInfo::initPhpRoot() {
  SystemGlobals *g = (SystemGlobals*)get_global_variables();
  Variant &server = g->GV(_SERVER);
  Variant v = server.rvalAt("PHP_ROOT");
  if (v.isString()) {
    *s_phproot.getCheck() = string(v.asCStrRef().data()) + string("/");
  } else {
    // Our best guess at the source root.
    *s_phproot.getCheck() = GetCurrentSourceRoot();
  }
  return *s_phproot.getCheck();
}

bool UrlFile::open(CStrRef url, CStrRef mode) {
  const char* modestr = mode.c_str();
  if (strchr(modestr, '+') || strchr(modestr, 'a') || strchr(modestr, 'w')) {
    std::string msg = "cannot open a url stream for write/append operation: ";
    msg += url.c_str();
    m_error = msg;
    return false;
  }
  HttpClient http(m_timeout, m_maxRedirect);
  m_response.reset();

  HeaderMap *pHeaders = nullptr;
  HeaderMap requestHeaders;
  if (!m_headers.empty()) {
    pHeaders = &requestHeaders;
    for (ArrayIter iter(m_headers); iter; ++iter) {
      requestHeaders[string(iter.first().toString().data())].
        push_back(iter.second().toString().data());
    }
  }

  int code;
  vector<String> responseHeaders;
  if (m_get) {
    code = http.get(url.c_str(), m_response, pHeaders, &responseHeaders);
  } else {
    code = http.post(url.c_str(), m_postData.data(), m_postData.size(),
                     m_response, pHeaders, &responseHeaders);
  }

  SystemGlobals *g = (SystemGlobals*)get_global_variables();
  Variant &r = g->GV(http_response_header);
  r = Array::Create();
  for (unsigned int i = 0; i < responseHeaders.size(); i++) {
    r.append(responseHeaders[i]);
  }
  m_responseHeaders = r;

  if (code == 200) {
    m_name = (std::string) url;
    m_data = const_cast<char*>(m_response.data());
    m_len = m_response.size();
    return true;
  } else {
    m_error = http.getLastError().c_str();
    return false;
  }
}

Variant invoke_file(CStrRef path, bool once /* = false */,
                    LVariableTable* variables /* = NULL */,
                    const char *currentDir /* = NULL */) {
  String cmd = canonicalize_path(path, "", 0);
  if (path == "string") {
    echo("Hello, world!");
    return true;
  }
  if (cmd == "pageletserver") {
    SystemGlobals *g = (SystemGlobals*)get_global_variables();

    echo("pagelet postparam: ");
    echo(g->GV(HTTP_RAW_POST_DATA));
    echo("pagelet getparam: ");
    echo(g->GV(_GET)["getparam"]);
    echo("pagelet header: ");
    echo(g->GV(_SERVER)["HTTP_MYHEADER"]);
    f_header("ResponseHeader: okay");

    sleep(1); // give status check time to happen
    return true;
  }
  return false;
}

/**
 * PHP has "EGPCS" processing order of these global variables, and this
 * order is important in preparing $_REQUEST that needs to know which to
 * overwrite what when name happens to be the same.
 */
void HttpProtocol::PrepareSystemVariables(Transport *transport,
                                          const RequestURI &r,
                                          const SourceRootInfo &sri) {
  SystemGlobals *g = (SystemGlobals*)get_global_variables();
  const VirtualHost *vhost = VirtualHost::GetCurrent();

  // reset global symbols to nulls or empty arrays
  pm_php$globals$symbols_php();

  Variant &server = g->GV(_SERVER);
  server.set("REQUEST_START_TIME", time(NULL));

  // $_ENV
  process_env_variables(g->GV(_ENV));
  g->GV(_ENV).set("HPHP", 1);
  g->GV(_ENV).set("HPHP_SERVER", 1);
#ifdef HOTPROFILER
  g->GV(_ENV).set("HPHP_HOTPROFILER", 1);
#endif

  Variant &request = g->GV(_REQUEST);

  // $_GET and $_REQUEST
  if (!r.queryString().empty()) {
    DecodeParameters(g->GV(_GET), r.queryString().data(),
                     r.queryString().size());
    CopyParams(request, g->GV(_GET));
  }

  string contentType = transport->getHeader("Content-Type");
  string contentLength = transport->getHeader("Content-Length");
  // $_POST and $_REQUEST
  if (transport->getMethod() == Transport::POST) {
    bool needDelete = false;
    int size = 0;
    const void *data = transport->getPostData(size);
    if (data && size) {
      ASSERT(((char*)data)[size] == 0); // we need a NULL terminated string
      string boundary;
      int content_length = atoi(contentLength.c_str());
      bool rfc1867Post = IsRfc1867(contentType, boundary);
      string files;
      if (rfc1867Post) {
        if (content_length > VirtualHost::GetMaxPostSize()) {
          // $_POST and $_FILES are empty
          Logger::Warning("POST Content-Length of %d bytes exceeds "
                          "the limit of %lld bytes",
                          content_length, VirtualHost::GetMaxPostSize());
          needDelete = read_all_post_data(transport, data, size);
        } else {
          if (transport->hasMorePostData()) {
            needDelete = true;
            data = Util::buffer_duplicate(data, size);
          }
          DecodeRfc1867(transport, g->GV(_POST), g->GV(_FILES),
                        content_length, data, size, boundary);
        }
        ASSERT(!transport->getFiles(files));
      } else {
        needDelete = read_all_post_data(transport, data, size);

        bool decodeData = strncasecmp(contentType.c_str(),
                                       DEFAULT_POST_CONTENT_TYPE,
                                       sizeof(DEFAULT_POST_CONTENT_TYPE)-1) == 0;
        // Always decode data for now. (macvicar)
        decodeData = true;

        if (decodeData) {
          DecodeParameters(g->GV(_POST), (const char*)data, size, true);
        }

        bool ret = transport->getFiles(files);
        if (ret) {
          g->GV(_FILES) = f_unserialize(files);
        }
      }
      CopyParams(request, g->GV(_POST));
      if (needDelete) {
        if (RuntimeOption::AlwaysPopulateRawPostData) {
          g->GV(HTTP_RAW_POST_DATA) = String((char*)data, size, AttachString);
        } else {
          free((void *)data);
        }
      } else {
        // For literal we disregard RuntimeOption::AlwaysPopulateRawPostData
        g->GV(HTTP_RAW_POST_DATA) = String((char*)data, size, AttachLiteral);
      }
    }
  }

  // $_COOKIE
  string cookie_data = transport->getHeader("Cookie");
  if (!cookie_data.empty()) {
    StringBuffer sb;
    sb.append(cookie_data);
//.........这里部分代码省略.........

bool RPCRequestHandler::executePHPFunction(Transport *transport,
                                           SourceRootInfo &sourceRootInfo) {
  // reset timeout counter
  ThreadInfo::s_threadInfo->m_reqInjectionData.started = time(0);

  string rpcFunc = transport->getCommand();
  {
    ServerStatsHelper ssh("input");
    RequestURI reqURI(rpcFunc);
    HttpProtocol::PrepareSystemVariables(transport, reqURI, sourceRootInfo);
    SystemGlobals *g = (SystemGlobals*)get_global_variables();
    g->GV(_ENV).set(s_HPHP_RPC, 1);
  }

  bool isFile = rpcFunc.rfind('.') != string::npos;
  string rpcFile;
  bool error = false;

  Array params;
  string sparams = transport->getParam("params");
  if (!sparams.empty()) {
    Variant jparams = f_json_decode(String(sparams), true);
    if (jparams.isArray()) {
      params = jparams.toArray();
    } else {
      error = true;
    }
  } else {
    vector<string> sparams;
    transport->getArrayParam("p", sparams);
    if (!sparams.empty()) {
      for (unsigned int i = 0; i < sparams.size(); i++) {
        Variant jparams = f_json_decode(String(sparams[i]), true);
        if (same(jparams, false)) {
          error = true;
          break;
        }
        params.append(jparams);
      }
    } else {
      // single string parameter, used by xbox to avoid any en/decoding
      int size;
      const void *data = transport->getPostData(size);
      if (data && size) {
        params.append(String((char*)data, size, AttachLiteral));
      }
    }
  }

  if (transport->getIntParam("reset") == 1) {
    m_reset = true;
  }
  int output = transport->getIntParam("output");

  int code;
  if (!error) {
    Variant funcRet;
    string errorMsg = "Internal Server Error";
    string reqInitFunc, reqInitDoc;
    reqInitDoc = transport->getHeader("ReqInitDoc");
    if (reqInitDoc.empty() && m_serverInfo) {
      reqInitFunc = m_serverInfo->getReqInitFunc();
      reqInitDoc = m_serverInfo->getReqInitDoc();
    }

    if (!reqInitDoc.empty()) {
      reqInitDoc = (std::string)canonicalize_path(reqInitDoc, "", 0);
    }
    if (!reqInitDoc.empty()) {
      reqInitDoc = getSourceFilename(reqInitDoc, sourceRootInfo);
    }

    bool runOnce = false;
    bool ret = true;
    if (isFile) {
      rpcFile = rpcFunc;
      rpcFunc.clear();
    } else {
      rpcFile = transport->getParam("include");
      if (rpcFile.empty()) {
        rpcFile = transport->getParam("include_once");
        runOnce = true;
      }
    }
    if (!rpcFile.empty()) {
      // invoking a file through rpc
      bool forbidden = false;
      if (!RuntimeOption::ForbiddenFileExtensions.empty()) {
        const char *ext = rpcFile.c_str() + rpcFile.rfind('.') + 1;
        if (RuntimeOption::ForbiddenFileExtensions.find(ext) !=
            RuntimeOption::ForbiddenFileExtensions.end()) {
          forbidden = true;
        }
      }
      if (!forbidden) {
        rpcFile = (std::string) canonicalize_path(rpcFile, "", 0);
        rpcFile = getSourceFilename(rpcFile, sourceRootInfo);
        ret = hphp_invoke(m_context, rpcFile, false, Array(), uninit_null(),
                          reqInitFunc, reqInitDoc, error, errorMsg, runOnce);
      }
//.........这里部分代码省略.........

void DummySandbox::run() {
  TRACE(2, "DummySandbox::run\n");
  ThreadInfo *ti = ThreadInfo::s_threadInfo.getNoCheck();
  Debugger::RegisterThread();
  ti->m_reqInjectionData.setDummySandbox(true);
  while (!m_stopped) {
    try {
      CLISession hphpSession;

      DSandboxInfo sandbox = m_proxy->getSandbox();
      string msg;
      if (sandbox.valid()) {
        SystemGlobals *g = (SystemGlobals *)get_global_variables();
        SourceRootInfo sri(sandbox.m_user, sandbox.m_name);
        if (sandbox.m_path.empty()) {
          sandbox.m_path = sri.path();
        }
        if (!sri.sandboxOn()) {
          msg = "Invalid sandbox was specified. "
            "PHP files may not be loaded properly.\n";
        } else {
          sri.setServerVariables(g->GV(_SERVER));
        }
        Debugger::RegisterSandbox(sandbox);
        g_context->setSandboxId(sandbox.id());

        char cwd[PATH_MAX];
        getcwd(cwd, sizeof(cwd));
        std::string doc = getStartupDoc(sandbox);
        Logger::Info("Start loading startup doc '%s', pwd = '%s'",
                     doc.c_str(), cwd);
        bool error; string errorMsg;
        bool ret = hphp_invoke(g_context.getNoCheck(), doc, false, null_array,
                               uninit_null(), "", "", error, errorMsg, true, false,
                               true);
        if (!ret || error) {
          msg += "Unable to pre-load " + doc;
          if (!errorMsg.empty()) {
            msg += ": " + errorMsg;
          }
        }
        Logger::Info("Startup doc " + doc + " loaded");
      } else {
        g_context->setSandboxId(m_proxy->getDummyInfo().id());
      }

      ti->m_reqInjectionData.setDebugger(true);
      {
        DebuggerDummyEnv dde;
        Debugger::InterruptSessionStarted(nullptr, msg.c_str());
      }

      // Blocking until Ctrl-C is issued by end user and DebuggerProxy cannot
      // find a real sandbox thread to handle it.
      {
        Lock lock(this);
        while (!m_stopped && m_signum != CmdSignal::SignalBreak) {
          wait(1);
        }
        if (m_stopped) {
          // stopped by worker thread
          break;
        }
        m_signum = CmdSignal::SignalNone;
      }
    } catch (const DebuggerClientExitException &e) {
      // stopped by the dummy sandbox thread itself
      break;
    } catch (const DebuggerException &e) {
    }
  }
}

DebuggerProxyPtr Debugger::GetProxy() {
  SystemGlobals *g = (SystemGlobals*)get_global_variables();
  String id = g->GV(_SERVER)["HPHP_SANDBOX_ID"];
  return s_debugger.findProxy(id.data());
}