env.java

来自「RESIN 3.2 最新源码」· Java 代码 · 共 3,016 行 · 第 1/5 页

      var = new Var();

      _globalMap.put(name, var);

      ArrayValue post = new ArrayValueImpl();

      var.set(post);

      if (_request == null)
        return null;

      if (! "POST".equals(_request.getMethod()))
        return var;

      if (_postArray != null) {
        for (Map.Entry<Value, Value> entry : _postArray.entrySet()) {
          post.put(entry.getKey(), entry.getValue());
        }
      }
    }
    break;


    case HTTP_POST_FILES:
      if (! Quercus.INI_REGISTER_LONG_ARRAYS.getAsBoolean(this))
	return null;
    case _FILES: {
      var = new Var();

      _globalMap.put(name, var);

      ArrayValue files = new ArrayValueImpl();

      if (_files != null) {
        for (Map.Entry<Value, Value> entry : _files.entrySet()) {
          files.put(entry.getKey(), entry.getValue());
        }
      }

      var.set(files);
    }
    break;

    case HTTP_GET_VARS:
      if (! Quercus.INI_REGISTER_LONG_ARRAYS.getAsBoolean(this))
        return null;
      
    case _GET: {
      var = new Var();

      ArrayValue array = new ArrayValueImpl();

      var.set(array);
      _globalMap.put(name, var);

      String queryString = _request.getQueryString();
      if (queryString == null)
        return var;

      StringUtility.parseStr(this,
                             queryString,
                             array,
                             true,
                             getHttpInputEncoding());
      
      return var;
    }
      
    case _REQUEST: {
      var = new Var();
      
      ArrayValue array = new ArrayValueImpl();

      var.set(array);

      _globalMap.put(name, var);

      if (_request == null)
        return var;
      
      try {
        String encoding = getHttpInputEncoding();
        
        if (encoding == null)
          encoding = "iso-8859-1";
        
        _request.setCharacterEncoding(encoding);
      } catch (Exception e) {
        log.log(Level.FINE, e.toString(), e);
      }
	  
      ArrayList<String> keys = new ArrayList<String>();
      keys.addAll(_request.getParameterMap().keySet());

      Collections.sort(keys);

      boolean isMagicQuotes = getIniBoolean("magic_quotes_gpc");
      
      for (String key : keys) {
        String []value = _request.getParameterValues(key);

        Post.addFormValue(this,
                          array,
                          key,
                          value,
                          isMagicQuotes);
      }

      if (name.equals("_REQUEST") && _postArray != null) {
        
        for (Map.Entry<Value, Value> entry : _postArray.entrySet()) {
          Value key = entry.getKey();
          Value value = entry.getValue();
          
          Value existingValue = array.get(key);
          
          if (existingValue.isArray() && value.isArray())
           existingValue.toArrayValue(this).putAll(value.toArrayValue(this));
          else
            array.put(entry.getKey(), entry.getValue().copy());
        }
      }

      Cookie []cookies = _request.getCookies();
      for (int i = 0; cookies != null && i < cookies.length; i++) {   
        Cookie cookie = cookies[i];

        String decodedValue = decodeValue(cookie.getValue());

        Post.addFormValue(this,
                          array,
                          cookie.getName(),
                          new String[] { decodedValue },
                          isMagicQuotes);
      }
      
      return var;
    }

    case HTTP_RAW_POST_DATA: {
      if (! Quercus.INI_ALWAYS_POPULATE_RAW_POST_DATA.getAsBoolean(this))
        return null;
      
      if (_inputData == null)
        return null;
      
      var = new Var();
      
      _globalMap.put(name, var);
      
      var.set(_inputData);
      
      return var;
    }
    
    case HTTP_SERVER_VARS:
      if (! Quercus.INI_REGISTER_LONG_ARRAYS.getAsBoolean(this))
	return null;
    case _SERVER: {
      var = new Var();

      _globalMap.put(name, var);

      var.set(new ServerArrayValue(this));

      return var;
    }

    case _GLOBAL: {
      var = new Var();

      _globalMap.put(name, var);

      var.set(new GlobalArrayValue(this));

      return var;
    }

    case HTTP_COOKIE_VARS:
      if (! Quercus.INI_REGISTER_LONG_ARRAYS.getAsBoolean(this))
	return null;
    case _COOKIE: {
      var = new Var();
      _globalMap.put(name, var);

      if (_request == null)
        return var;
      
      ArrayValue array = new ArrayValueImpl();

      Cookie []cookies = _request.getCookies();
      if (cookies != null) {
        for (int i = 0; i < cookies.length; i++) {
          Cookie cookie = cookies[i];

          String value = decodeValue(cookie.getValue());

          StringValue valueAsValue = createString(value);

          if (getIniBoolean("magic_quotes_gpc")) // php/0876
            valueAsValue = StringModule.addslashes(valueAsValue);

          array.append(createString(cookie.getName()), valueAsValue);
        }
      }

      var.set(array);

      return var;
    }

    case PHP_SELF: {
      var = new Var();
      _globalMap.put(name, var);

      var.set(getGlobalVar("_SERVER").get(PHP_SELF_STRING));

      return var;
    }

    default: {
      if (_scriptContext != null) {
        Object value = _scriptContext.getAttribute(name);

        if (value == null) {
          Bindings bindings
          = _scriptContext.getBindings(ScriptContext.ENGINE_SCOPE);

          if (bindings != null)
            value = bindings.get(name);
        }

        if (value == null) {
          Bindings bindings
          = _scriptContext.getBindings(ScriptContext.GLOBAL_SCOPE);

          if (bindings != null)
            value = bindings.get(name);
        }

        if (value != null) {
          var = new Var();
          _globalMap.put(name, var);

          var.set(wrapJava(value));

          return var;
        }
      }
    }
    } // end switch

    return var;
  }

  private static String decodeValue(String s)
  {
    int len = s.length();
    StringBuilder sb = new StringBuilder();

    for (int i = 0; i < len; i++) {
      char ch = s.charAt(i);

      if (ch == '%' && i + 2 < len) {
        int d1 = s.charAt(i + 1);
        int d2 = s.charAt(i + 2);

        int v = 0;

        if ('0' <= d1 && d1 <= '9')
          v = 16 * (d1 - '0');
        else if ('a' <= d1 && d1 <= 'f')
          v = 16 * (d1 - 'a' + 10);
        else if ('A' <= d1 && d1 <= 'F')
          v = 16 * (d1 - 'A' + 10);
        else {
          sb.append('%');
          continue;
        }

        if ('0' <= d2 && d2 <= '9')
          v += (d2 - '0');
        else if ('a' <= d2 && d2 <= 'f')
          v += (d2 - 'a' + 10);
        else if ('A' <= d2 && d2 <= 'F')
          v += (d2 - 'A' + 10);
        else {
          sb.append('%');
          continue;
        }

        i += 2;
        sb.append((char) v);
      }
      else if (ch == '+')
        sb.append(' ');
      else
        sb.append(ch);
    }

    return sb.toString();
  }

  /**
   * Gets a value.
   */
  public Var getVar(String name)
  {
    Var var = _map.get(name);

    if (var != null)
      return var;
    
    var = getRef(name);

    if (var == null) {
      var = new Var();

      if (_map == _globalMap) {
        // php/379c
        var.setGlobal();
      }

      _map.put(name, var);
    }

    return var;
  }

  /**
   * Gets a value.
   */
  public Var getGlobalVar(String name)
  {
    Var var = getGlobalRef(name);

    if (var == null) {
      var = new Var();
      var.setGlobal();
      _globalMap.put(name, var);
    }

    return var;
  }

  public boolean isGlobalEnv()
  {
    return _map == _globalMap;
  }

  /**
   * Sets a value.
   */
  public Value setValue(String name, Value value)
  {
    if (value instanceof Var)
      _map.put(name, (Var) value);
    else {
      Var var = getVar(name);
      var.set(value);
    }

    return value;
  }

  /**
   * Sets a special value, a special value is used to store and retrieve module
   * specific values in the env using a unique name.
   */
  public Object setSpecialValue(String name, Object value)
  {
    _specialMap.put(name, value);

    return value;
  }

  /**
   * Sets a value.
   */
  public Value setGlobalValue(String name, Value value)
  {
    if (value instanceof Var)
      _globalMap.put(name, (Var) value);
    else {
      Var var = getGlobalVar(name);
      var.set(value);
    }

    return value;
  }

  /**
   * Gets a static class field.
   *
   * @param className of the owning class 
   * @param name of the variable
   */
  public Value getStaticClassFieldValue(String className, String name)
  {
    Var var = getStaticClassFieldVar(className, name);
    
    if (var != null) {
      Value val = var.toValue();
        
      return val;
    }
    else
      return NullValue.NULL;
  }

  /**
   * Gets a static field from a class.
   *
   * @param className of the owning class 
   * @param name of the variable
   */
  public final Var getStaticClassFieldVar(String className, String name)
  {
    QuercusClass cl = findAbstractClass(className);
    
    Var var = cl.getStaticField(this, name);
    
    if (var == null) {
      error(L.l("{0}::${1} is an undeclared static property", className, name));
    }

    return var;
  }

  /**
   * Sets the calling function expression.
   */
  public void pushCall(Expr call, Value obj)
  {
    if (_callStack.length <= _callStackTop) {
      Expr []newStack = new Expr[2 * _callStack.length];
      System.arraycopy(_callStack, 0, newStack, 0, _callStack.length);
      _callStack = newStack;
      
      Value []newThisStack = new Value[2 * _callThisStack.length];
      System.arraycopy(_callThisStack,
		       0, newThisStack,
		       0, _callThisStack.length);
      _callThisStack = newThisStack;
    }

    _callStack[_callStackTop] = call;
    _callThisStack[_callStackTop] = obj;

    _callStackTop++;
  }

  /**
   * Pops the top call.
   */
  public Expr popCall()
  {
    return _callStack[--_callStackTop];
  }

  /**
   * Returns the stack depth.
   */
  public int getCallDepth()
  {
    return _callStackTop;
  }
  
  /**
   * Peeks at the the top call.
   */
  public Expr peekCall(int depth)
  {
    if (_callStackTop - depth > 0)
      return _callStack[_callStackTop - depth - 1];
    else
      return null;
  }
  
  /**
   * Peeks at the "this" top call.
   */
  public Value peekCallThis(int depth)
  {
    if (_callStackTop - depth > 0)
      return _callThisStack[_callStackTop - depth - 1];
    else
      return null;
  }
  
  /*
   * Returns the name of calling class.
   */
  public String getCallingClassName()
  {
    return _callingClass;
  }
  
  /*
   * Returns the calling class.
   */
  public QuercusClass getCallingClass()
  {
    return findClass(_callingClass);
  }
  
  /*
   * Sets the calling class.
   */
  public String setCallingClassName(String name)
  {
    String oldCallingClass = _callingClass;
    
    _callingClass = name;
    
    return oldCallingClass;
  }

  public ArrayList<String> getStackTrace()
  {
    ArrayList<String> trace = new ArrayList<String>();

    for (int i = _callStackTop - 1; i >= 0; i--) {
      String entry;
      Location location = _callStack[i].getLocation();
      String loc;

      if (location != null && location.getFileName() != null) {
	loc = (" (at " + location.getFileName()
	       + ":" + location.getLineNumber() + ")");
      }
      else
	loc = "";
      
      if (_callThisStack[i] != null
	  && ! "".equals(_callThisStack[i].toString())) {
	entry = _callThisStack[i] + "." + _callStack[i].toString() + loc;
      }
      else
	entry = _callStack[i].toString() + loc;

      trace.add(entry);
    }

    return trace;
  }

  /**
   * Pushes a new environment.
   */
  public HashMap<String, Var> pushEnv(HashMap<String, Var> map)
  {
    HashMap<String, Var> oldEnv = _map;

    _map = map;

    return oldEnv;
  }

  /**
   * Restores the old environment.
   */
  public void popEnv(HashMap<String, Var> oldEnv)
  {
    _map = oldEnv;
  }

  /**
   * Returns the current environment.
   */
  public HashMap<String, Var> getEnv()
  {
    return _map;
  }

  /**
   * Returns the current environment.
   */
  public HashMap<String, Var> getGlobalEnv()
  {
    return _globalMap;
  }

  /**
   * Pushes a new environment.
   */
  public final Value []setFunctionArgs(Value []args)
  {
    Value []oldArgs = _functionArgs;

    Value []newArgs = new Value[args.length];

    for (int i = 0; args != null && i < args.length; i++) {
      // php/3715, 3768
      newArgs[i] = args[i].toValue().toArgValue();
    }

    _functionArgs = newArgs;

    return oldArgs;
  }

  /**
   * Pushes a new environment.