errormodule.java

来自「RESIN 3.2 最新源码」· Java 代码 · 共 584 行 · 第 1/2 页

/*
 * Copyright (c) 1998-2008 Caucho Technology -- all rights reserved
 *
 * This file is part of Resin(R) Open Source
 *
 * Each copy or derived work must preserve the copyright notice and this
 * notice unmodified.
 *
 * Resin Open Source is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * Resin Open Source is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
 * of NON-INFRINGEMENT.  See the GNU General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Resin Open Source; if not, write to the
 *
 *   Free Software Foundation, Inc.
 *   59 Temple Place, Suite 330
 *   Boston, MA 02111-1307  USA
 *
 * @author Scott Ferguson
 */

package com.caucho.quercus.lib;

import com.caucho.quercus.annotation.Optional;
import com.caucho.quercus.env.*;
import com.caucho.quercus.expr.Expr;
import com.caucho.quercus.expr.FunctionExpr;
import com.caucho.quercus.expr.IncludeExpr;
import com.caucho.quercus.expr.IncludeOnceExpr;
import com.caucho.quercus.expr.MethodCallExpr;
import com.caucho.quercus.module.AbstractQuercusModule;
import com.caucho.quercus.module.IniDefinitions;
import com.caucho.quercus.module.IniDefinition;
import com.caucho.quercus.lib.file.FileModule;

import com.caucho.util.L10N;

import java.util.logging.Logger;

/**
 * PHP error handling.
 */
public class ErrorModule extends AbstractQuercusModule {
  private static final L10N L = new L10N(ErrorModule.class);
  private static final Logger log
    = Logger.getLogger(ErrorModule.class.getName());

  private static final IniDefinitions _iniDefinitions = new IniDefinitions();

  public static final int E_ERROR = Env.E_ERROR;
  public static final int E_WARNING = Env.E_WARNING;
  public static final int E_PARSE = Env.E_PARSE;
  public static final int E_NOTICE = Env.E_NOTICE;
  public static final int E_CORE_ERROR = Env.E_CORE_ERROR;
  public static final int E_CORE_WARNING = Env.E_CORE_WARNING;
  public static final int E_COMPILE_ERROR = Env.E_COMPILE_ERROR;
  public static final int E_COMPILE_WARNING = Env.E_COMPILE_WARNING;
  public static final int E_USER_ERROR = Env.E_USER_ERROR;
  public static final int E_USER_WARNING = Env.E_USER_WARNING;
  public static final int E_USER_NOTICE = Env.E_USER_NOTICE;
  public static final int E_ALL = Env.E_ALL;
  public static final int E_STRICT = Env.E_STRICT;
  public static final int E_RECOVERABLE_ERROR = Env.E_RECOVERABLE_ERROR;

  private long _errorReporting = Env.E_DEFAULT;

  /**
   * Returns the default php.ini values.
   */
  public IniDefinitions getIniDefinitions()
  {
    return _iniDefinitions;
  }

  /**
   * Exits
   */
  public Value die(Env env, @Optional String msg)
  {
    if (msg != null)
      return env.die(msg);
    else
      return env.die();
  }
  
  /**
   * Produces a backtrace
   */
  public static Value debug_backtrace(Env env)
  {
    ArrayValue result = new ArrayValueImpl();
    
    Exception e = new Exception();
    e.fillInStackTrace();

    StackTraceElement []stack = e.getStackTrace();
    int depth = 0;

    for (int i = 1; i < stack.length; i++) {
      StackTraceElement elt = stack[i];

      String name = elt.getMethodName();
      String className = elt.getClassName();

      // System.out.println("NAME: " + name + " " + elt.getClassName());
    
      if (name.equals("executeTop")) {
	return result;
      }
      else if (className.startsWith("_quercus._")
	       && name.equals("call")) {
	String path = unmangleFile(className);
	String fileName = env.getPwd().lookup("./" + path).getNativePath();
	
	ArrayValue call = new ArrayValueImpl();
	result.put(call);

	call.put("file", fileName);
	call.put("line", env.getSourceLine(className, elt.getLineNumber()));
	
	call.put("function", unmangleFunction(className));

	call.put(env.createString("args"), new ArrayValueImpl());
      }
      else if (className.startsWith("_quercus._")
	       && name.equals("callMethod")) {
	String path = unmangleFile(className);
	String fileName = env.getPwd().lookup("./" + path).getNativePath();
	
	ArrayValue call = new ArrayValueImpl();
	result.put(call);

	call.put("file", fileName);
	call.put("line", env.getSourceLine(className, elt.getLineNumber()));
	
	call.put("function", unmangleFunction(className));
	call.put("class", unmangleClass(className));
	call.put("type", "->");

	call.put(env.createString("args"), new ArrayValueImpl());
      }
      else if (className.startsWith("_quercus._")
	       && name.equals("execute")) {
	String methodName = stack[i - 1].getMethodName();
	if (stack[i - 1].getClassName().equals("com.caucho.quercus.env.Env") &&
            (methodName.equals("include") || methodName.equals("includeOnce"))) {
	  String path = unmangleFile(className);
	  String fileName = env.getPwd().lookup("./" + path).getNativePath();

	  ArrayValue call = new ArrayValueImpl();
	  result.put(call);

	  call.put("file", fileName);
	  call.put("line", env.getSourceLine(className, elt.getLineNumber()));

	  if (methodName.equals("includeOnce"))
	    call.put("function", "include_once");
	  else
	    call.put("function", "include");
	}
      }
      else if (className.equals("com.caucho.quercus.expr.FunctionExpr")
	       && name.equals("evalImpl")) {
	if (stack[i - 1].getMethodName().equals("evalArguments")) {
	}
	else if (result.getSize() == 0 && depth == 0)
	  depth++;
	else
	  addInterpreted(env, result, depth++);
      }
      else if (className.equals("com.caucho.quercus.expr.MethodCallExpr")
	       && name.equals("eval")) {
	if (stack[i - 1].getMethodName().equals("evalArguments")) {
	}
	else if (result.getSize() == 0 && depth == 0)
	  depth++;
	else
	  addInterpreted(env, result, depth++);
      }
      else if (className.equals("com.caucho.quercus.expr.IncludeExpr")
	       && name.equals("eval")) {
	addInterpreted(env, result, depth++);
      }
      else if (className.equals("com.caucho.quercus.expr.IncludeOnceExpr")
               && name.equals("eval")) {
        addInterpreted(env, result, depth++);
      }
      else if (className.startsWith("com.caucho.quercus")) {
      }
      else if (name.equals("invoke") || name.equals("invoke0")) {
      }
      else {
	ArrayValue call = new ArrayValueImpl();
	result.put(call);

	call.put("file", elt.getFileName());
	call.put("line", elt.getLineNumber());
	
	call.put("function", elt.getMethodName());
	call.put("class", elt.getClassName());

	call.put(env.createString("args"), new ArrayValueImpl());
      }
    }

    return result;
  }

  private static void addInterpreted(Env env, ArrayValue result, int i)
  {
    Expr expr = env.peekCall(i);

    if (expr instanceof FunctionExpr) {
      FunctionExpr callExpr = (FunctionExpr) expr;

      ArrayValue call = new ArrayValueImpl();
      result.put(call);
      
      if (callExpr.getFileName() != null) {
	call.put(env.createString("file"),
		 env.createString(callExpr.getFileName()));
	call.put(env.createString("line"), new LongValue(callExpr.getLine()));
      }
	
      call.put(env.createString("function"),
	       env.createString(callExpr.getName()));

      // Create "args" argument value array

      // evaluating args a second time is problematic, affecting mediawiki
      // php/180q
      //ArrayValueImpl args = evalArgsArray(env, callExpr);

      ArrayValueImpl args = new ArrayValueImpl();
      
      call.put(env.createString("args"), args);
    }
    else if (expr instanceof MethodCallExpr) {
      MethodCallExpr callExpr = (MethodCallExpr) expr;

      ArrayValue call = new ArrayValueImpl();
      result.put(call);
      
      if (callExpr.getFileName() != null) {
	call.put(env.createString("file"),
		 env.createString(callExpr.getFileName()));
	call.put(env.createString("line"),
		 new LongValue(callExpr.getLine()));
      }

      call.put(env.createString("function"),
	       env.createString(callExpr.getName()));

      call.put(env.createString("class"),
	       env.createString(env.peekCallThis(i).getClassName()));

      call.put(env.createString("type"), env.createString("->"));

      call.put(env.createString("args"), new ArrayValueImpl());
    }
    else if (expr instanceof IncludeExpr) {
      ArrayValue call = new ArrayValueImpl();
      result.put(call);
      
      if (expr.getFileName() != null) {
	call.put(env.createString("file"),
		 env.createString(expr.getFileName()));
	call.put(env.createString("line"),
		 new LongValue(expr.getLine()));
      }

      call.put(env.createString("function"), env.createString("include"));
    }
    else if (expr instanceof IncludeOnceExpr) {
      boolean isRequire = ((IncludeOnceExpr) expr).isRequire();
      
      ArrayValue call = new ArrayValueImpl();
      result.put(call);
      
      if (expr.getFileName() != null) {
        call.put(env.createString("file"),
                 env.createString(expr.getFileName()));
        call.put(env.createString("line"),
                 LongValue.create(expr.getLine()));