📄 cls_main.asp
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'参 数：str ----原字符串
' strlen ----显示字符长度
'================================================
Public Function GotTopic(ByVal str, ByVal strLen)
Dim l, t, c, i
Dim strTemp
On Error Resume Next
str = Trim(str)
str = Replace(str, " ", " ")
str = Replace(str, ">", ">")
str = Replace(str, "<", "<")
str = Replace(str, ">", ">")
str = Replace(str, "<", "<")
str = Replace(str, "'", "'")
str = Replace(str, """, Chr(34))
str = Replace(str, vbNewLine, "")
l = Len(str)
t = 0
For i = 1 To l
c = Abs(Asc(Mid(str, i, 1)))
If c > 255 Then
t = t + 2
Else
t = t + 1
End If
If t >= strLen Then
strTemp = Left(str, i) & ".."
Exit For
Else
strTemp = str & ""
End If
Next
GotTopic = CheckTopic(strTemp)
End Function
Public Function CheckTopic(ByVal strContent)
Dim re
On Error Resume Next
Set re = New RegExp
re.IgnoreCase = True
re.Global = True
re.Pattern = "(<s+cript(.+?)<\/s+cript>)"
strContent = re.Replace(strContent, "")
re.Pattern = "(<iframe(.+?)<\/iframe>)"
strContent = re.Replace(strContent, "")
re.Pattern = "(>)"
strContent = re.Replace(strContent, ">")
re.Pattern = "(<)"
strContent = re.Replace(strContent, "<")
Set re = Nothing
strContent = Replace(strContent, ">", ">")
strContent = Replace(strContent, "<", "<")
strContent = Replace(strContent, "'", "'")
strContent = Replace(strContent, Chr(34), """)
strContent = Replace(strContent, "%", "％")
strContent = Replace(strContent, vbNewLine, "")
CheckTopic = Trim(strContent)
End Function
'================================================
'函数名：ReadTopic
'作 用：显示字符串长度
'参 数：str ----原字符串
' strlen ----显示字符长度
'================================================
Public Function ReadTopic(ByVal str, ByVal strLen)
Dim l, t, c, i
On Error Resume Next
str = Replace(str, " ", " ")
If Len(str) < strLen Then
str = str & String(strLen - Len(str), ".")
Else
str = str
End If
l = Len(str)
t = 0
For i = 1 To l
c = Abs(Asc(Mid(str, i, 1)))
If c > 255 Then
t = t + 2
Else
t = t + 1
End If
If t >= strLen Then
ReadTopic = Left(str, i) & "..."
Exit For
Else
ReadTopic = str & "..."
End If
Next
End Function
'================================================
'函数名：strLength
'作 用：计字符串长度
'参 数：str ----字符串
'================================================
Public Function strLength(ByVal str)
On Error Resume Next
If IsNull(str) Or str = "" Then
strLength = 0
Exit Function
End If
Dim WINNT_CHINESE
WINNT_CHINESE = (Len("例子") = 2)
If WINNT_CHINESE Then
Dim l, t
Dim i, c
l = Len(str)
t = l
For i = 1 To l
c = Asc(Mid(str, i, 1))
If c < 0 Then c = c + 65536
If c > 255 Then t = t + 1
Next
strLength = t
Else
strLength = Len(str)
End If
End Function
'=================================================
'函数名：isInteger
'作 用：判断数字是否整型
'参 数：para ----参数
'=================================================
Public Function isInteger(ByVal para)
On Error Resume Next
Dim str
Dim l, i
If IsNull(para) Then
isInteger = False
Exit Function
End If
str = CStr(para)
If Trim(str) = "" Then
isInteger = False
Exit Function
End If
l = Len(str)
For i = 1 To l
If Mid(str, i, 1) > "9" Or Mid(str, i, 1) < "0" Then
isInteger = False
Exit Function
End If
Next
isInteger = True
If Err.Number <> 0 Then Err.Clear
End Function
Public Function CutString(ByVal str, ByVal strLen)
'On Error Resume Next
Dim HtmlStr, l, re, strContent
HtmlStr = str
Set re = New RegExp
re.IgnoreCase = True
re.Global = True
re.Pattern = "\[br\]"
HtmlStr = re.Replace(HtmlStr, "")
re.Pattern = "\[align=right\](.*)\[\/align\]"
HtmlStr = re.Replace(HtmlStr, "")
re.Pattern = "([\f\n\r\t\v])"
HtmlStr = re.Replace(HtmlStr, "")
re.Pattern = "<(.[^>]*)>"
HtmlStr = re.Replace(HtmlStr, "")
Set re = Nothing
HtmlStr = Replace(HtmlStr, " ", "")
HtmlStr = Replace(HtmlStr, """, Chr(34))
HtmlStr = Replace(HtmlStr, "'", Chr(39))
HtmlStr = Replace(HtmlStr, "{", Chr(123))
HtmlStr = Replace(HtmlStr, "}", Chr(125))
HtmlStr = Replace(HtmlStr, "$", Chr(36))
HtmlStr = Replace(HtmlStr, vbCrLf, "")
HtmlStr = Replace(HtmlStr, "====", "")
HtmlStr = Replace(HtmlStr, "----", "")
HtmlStr = Replace(HtmlStr, "////", "")
HtmlStr = Replace(HtmlStr, "\\\\", "")
HtmlStr = Replace(HtmlStr, "####", "")
HtmlStr = Replace(HtmlStr, "@@@@", "")
HtmlStr = Replace(HtmlStr, "****", "")
HtmlStr = Replace(HtmlStr, "~~~~", "")
HtmlStr = Replace(HtmlStr, "≡≡≡", "")
HtmlStr = Replace(HtmlStr, "++++", "")
HtmlStr = Replace(HtmlStr, "::::", "")
HtmlStr = Replace(HtmlStr, " ", "")
HtmlStr = Replace(HtmlStr, ">", ">")
HtmlStr = Replace(HtmlStr, "<", "<")
l = Len(HtmlStr)
If l >= strLen Then
strContent = Left(HtmlStr, strLen) & "..."
Else
strContent = HtmlStr & " "
End If
strContent = Replace(strContent, Chr(34), """)
strContent = Replace(strContent, Chr(39), "'")
strContent = Replace(strContent, Chr(36), "$")
strContent = Replace(strContent, Chr(123), "{")
strContent = Replace(strContent, Chr(125), "}")
strContent = Replace(strContent, ">", ">")
strContent = Replace(strContent, "<", "<")
CutString = strContent
End Function
'================================================
'函数名：CheckInfuse
'作 用：防止SQL注入
'参 数：str ----原字符串
' strLen ----提交字符串长度
'================================================
Public Function CheckInfuse(ByVal str, ByVal strLen)
Dim strUnsafe, arrUnsafe
Dim i
If Trim(str) = "" Then
CheckInfuse = ""
Exit Function
End If
str = Left(str, strLen)
On Error Resume Next
strUnsafe = "'|^|;|and|exec|insert|select|delete|update|count|*|%|chr|mid|master|truncate|char|declare"
If Trim(str) <> "" Then
If Len(str) > strLen Then
Response.Write "<Script Language=JavaScript>alert('安全系统提示↓\n\n您提交的字符数超过了限制！');history.back(-1)</Script>"
CheckInfuse = ""
Response.End
End If
arrUnsafe = Split(strUnsafe, "|")
For i = 0 To UBound(arrUnsafe)
If InStr(1, str, arrUnsafe(i), 1) > 0 Then
Response.Write "<Script Language=JavaScript>alert('安全系统提示↓\n\n请不要在参数中包含非法字符！');history.back(-1)</Script>"
CheckInfuse = ""
Response.End
End If
Next
End If
CheckInfuse = Trim(str)
Exit Function
If Err.Number <> 0 Then
Err.Clear
Response.Write "<Script Language=JavaScript>alert('安全系统提示↓\n\n请不要在参数中包含非法字符！');history.back(-1)</Script>"
CheckInfuse = ""
Response.End
End If
End Function
Public Sub PreventInfuse()
On Error Resume Next
Dim SQL_Nonlicet, arrNonlicet
Dim PostRefer, GetRefer, Sql_DATA
SQL_Nonlicet = "'|;|^|and|exec|insert|select|delete|update|count|*|%|chr|mid|master|truncate|char|declare"
arrNonlicet = Split(SQL_Nonlicet, "|")
If Request.Form <> "" Then
For Each PostRefer In Request.Form
For Sql_DATA = 0 To UBound(arrNonlicet)
If InStr(1, Request.Form(PostRefer), arrNonlicet(Sql_DATA), 1) > 0 Then
Response.Write "<Script Language=JavaScript>alert('安全系统提示↓\n\n请不要在参数中包含非法字符！');history.back(-1)</Script>"
Response.End
End If
Next
Next
End If
If Request.QueryString <> "" Then
For Each GetRefer In Request.QueryString
For Sql_DATA = 0 To UBound(arrNonlicet)
If InStr(1, Request.QueryString(GetRefer), arrNonlicet(Sql_DATA), 1) > 0 Then
Response.Write "<Script Language=JavaScript>alert('安全系统提示↓\n\n请不要在参数中包含非法字符！');history.back(-1)</Script>"
Response.End
End If
Next
Next
End If
End Sub
'================================================
'函数名：ChkQueryStr
'作 用：过虑查询的非法字符
'参 数：str ----原字符串
'返回值：过滤后的字符
'================================================
Public Function ChkQueryStr(ByVal str)
On Error Resume Next
If IsNull(str) Then
ChkQueryStr = ""
Exit Function
End If
str = Replace(str, "!", "")
str = Replace(str, "]", "")
str = Replace(str, "[", "")
str = Replace(str, ")", "")
str = Replace(str, "(", "")
str = Replace(str, "|", "")
str = Replace(str, "+", "")
str = Replace(str, "=", "")
str = Replace(str, "@", "")
str = Replace(str, "'", "''")
str = Replace(str, "%", "")
str = Replace(str, "&", "")
str = Replace(str, "#", "")
str = Replace(str, "^", "")
str = Replace(str, "《", "")
str = Replace(str, "》", "")
str = Replace(str, " ", " ")
str = Replace(str, Chr(37), "")
str = Replace(str, Chr(0), "")
ChkQueryStr = str
End Function
'================================================
'过程名：CheckQuery
'作 用：限制搜索的关键字
'参 数：str ----搜索的字符串
'返回值：True; False
'================================================
Public Function CheckQuery(ByVal str)
Dim FobWords, i, keyword
keyword = str
On Error Resume Next
FobWords = Array(91, 92, 304, 305, 430, 431, 437, 438, 12460, 12461, 12462, 12463, 12464, 12465, 12466, 12467, 12468, 12469, 12470, 12471, 12472, 12473, 12474, 12475, 12476, 12477, 12478, 12479, 12480, 12481, 12482, 12483, 12485, 12486, 12487, 12488, 12489, 12490, 12496, 12497, 12498, 12499, 12500, 12501, 12502, 12503, 12504, 12505, 12506, 12507, 12508, 12509, 12510, 12532, 12533, 65339, 65340)
For i = 1 To UBound(FobWords, 1)
If InStr(keyword, ChrW(FobWords(i))) > 0 Then
CheckQuery = False
Exit Function
End If
Next
FobWords = Array("~", "!", "@", "#", "$", "%", "^", "&", "*", "(", ")", "_", "+", "=", "`", "[", "]", "{", "}", ";", ":", """", "'", "<", ">", ".", "/", "\", "|", "?", "about", "after", "all", "also", "an", "and", "another", "any", "are", "as", "at", "be", "because", "been", "before", "being", "between", "both", "but", "by", "came", "can", "come", "could", "did", "do", "each", "for", "from", "get", "got", "had", "has", "have", "he", "her", "here", "him", "himself", "his", "how", "if", "in", "into", "is", "it", "like", "make", "many", "me", "might", "more", "most", "much", "must", "my", "never", "now", "of", "on", "only", "or", "other", "our", "out", "over", "said", "same", "see", "should", "since", "some", "still", "such", "take", "than", "that", "the", "their", "them", "then", "there", "these", "they", "this")
keyword = Left(keyword, 100)
keyword = Replace(keyword, "!", " ")
keyword = Replace(keyword, "]", " ")
keyword = Replace(keyword, "[", " ")
keyword = Replace(keyword, ")", " ")
keyword = Replace(keyword, "(", " ")
keyword = Replace(keyword, " ", " ")
keyword = Replace(keyword, "-", " ")
keyword = Replace(keyword, "/", " ")
keyword = Replace(keyword, "+", " ")
keyword = Replace(keyword, "=", " ")
keyword = Replace(keyword, ",", " ")
keyword = Replace(keyword, "'", " ")
For i = 0 To UBound(FobWords, 1)
If keyword = FobWords(i) Then
CheckQuery = False
Exit Function
End If
Next
CheckQuery = True
End Function
'================================================
'函数名：IsValidStr
'作 用：判断字符串中是否含有非法字符
'参 数：str ----原字符串
'返回值：False,True -----布尔值
'================================================
Public Function IsValidStr(ByVal str)
IsValidStr = False
On Error Resume Next
If IsNull(str) Then Exit Function
If Trim(str) = Empty Then Exit Function
Dim ForbidStr, i
ForbidStr = "and|chr|:|=|%|&|$|#|@|+|-|*|/|\|<|>|;|,|^|" & Chr(32) & "|" & Chr(34) & "|" & Chr(39) & "|" & Chr(9)
ForbidStr = Split(ForbidStr, "|")
For i = 0 To UBound(ForbidStr)
If InStr(1,str, ForbidStr(i),1) > 0 Then
IsValidStr = False
Exit Function
End If
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