Web QQ的代码

无聊中用FireBug去看Web QQ的页面，发现javascript 是没有压缩的，里边还有注释。

 

document.domain = "qq.com";

3

4

5 // 兼容不同浏览器的 Adapter 适配层

6 if(typeof window.XMLHttpRequest === "undefined"){

7 window.XMLHttpRequest = function(){

8 return new window.ActiveXObject(navigator.userAgent.indexOf("MSIE 5") >=0 ? "Microsoft.XMLHTTP" : "Msxml2.XMLHTTP");

9 };

10 }

11

12

13 /**

14 * 这是Ajax对象名字空间的一个方法

15 *

16 * @memberOf Http

17 * @method ajax

18 *

19 * @param {Object} options 一个配置对象

20 * @return {Object} ajax 返回一个ajax对象

21 */

22 var ajax = function(uri, options){

23 var httpRequest,

24 httpSuccess,

25 timeout,

26 isTimeout = false,

27 isComplete = false;

28

29 options = {

30 method: options.method || "GET",

31 data: options.data || null,

32 arguments: options.arguments || null,

33

34 onSuccess: options.onSuccess || function(){},

35 onError: options.onError || function(){},

36 onComplete: options.onComplete || function(){},

37 //尚未测试

38 onTimeout: options.onTimeout || function(){},

39

40 isAsync: options.isAsync || true,

41 timeout: options.timeout ? options.timeout : 30000,

42 contentType: options.contentType ? options.contentType : "utf-8",

43 type: options.type || "xml"

44 };

45 uri = uri || "",

46 timeout = options.timeout;

47

48

49

50 httpRequest = new window.XMLHttpRequest();

51

52 httpRequest.open(options.method, uri, options.isAsync);

53 //设置编码集

54 //httpRequest.setRequestHeader('Content-Type','application/x-www-form-urlencoded');

55 httpRequest.setRequestHeader("Content-Type",options.contentType);

56

57 /**

58 * @ignore

59 */

60 httpSuccess=function(r){

61 try{

62 return (!r.status && location.protocol == "file:")

63 || (r.status>=200 && r.status<300)

64 || (r.status==304)

65 || (navigator.userAgent.indexOf("Safari")>-1 && typeof r.status=="undefined");

66 }catch(e){}

67 return false;

68 }

69

70

71 httpRequest.onreadystatechange=function (){

72 if(httpRequest.readyState==4){

73 if(!isTimeout){

74 var o={};

75 o.responseText = httpRequest.responseText;

76 o.responseXML = httpRequest.responseXML;

77 o.uri=uri;

78 o.arguments=options.arguments;

79 o.status= httpRequest.status;

80 o.data = options.data;

81

82 if(httpSuccess(httpRequest)){

83 if(options.type === "script"){

84 eval.call(window, data);

85 }

86 try{

87 if(options && options.onSuccess){

88 options.onSuccess(o);

89 }

90

91 }catch(e){}

92

93

94 }else{

95

96 try{

97 options.onError(o);

98 }catch(e){}

99 }

100

101 try{

102 options.onComplete(o);

103 }catch(e){}

104 }

105 isComplete = true;

106 //删除对象,防止内存溢出

107 httpRequest = null;

108 }

109 };

110

111 httpRequest.send(options.data);

112

113 window.setTimeout(function(){

114 var o;

115 if(!isComplete){

116 isTimeout = true;

117 o={};

118 o.uri=uri;

119 o.arguments=options.arguments;

120 if(httpRequest){

121 httpRequest.abort();

122 httpRequest = null;

123 }

124 try{

125 options.onTimeout(o);

126 options.onComplete(o);

127 }catch(e){}

128 }

129 }, timeout);

130

131 return httpRequest;

132 };