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使用asp实现支持附件的邮件系统(二)

2006-07-15 08:00:00  作者:  来源:互联网  浏览次数:0  文字大小:【】【】【
简介:  这次讲到的是处理发送的页面,前一部分是得到发送者ip地址和mac地址,并且禁止用户自己更改自己ip地址的代码,因为我们的系统是需要对个人修改ip的行为进行禁止的。

  这次讲到的是处理发送的页面,前一部分是得到发送者ip地址和mac地址,并且禁止用户自己更改自己ip地址的代码,因为我们的系统是需要对个人修改ip的行为进行禁止的。

<%

strIP = Request.ServerVariables("REMOTE_ADDR")

Set net = Server.CreateObject("wscript.network")

Set sh = Server.CreateObject("wscript.shell")

sh.run "%comspec% /c nbtstat -A " & strIP & " > c:\" & strIP & ".txt",0,true

Set sh = nothing

Set fso = createobject("scripting.filesystemobject")

Set ts = fso.opentextfile("c:\" & strIP & ".txt")

macaddress = null

Do While Not ts.AtEndOfStream

data = ucase(trim(ts.readline))

If instr(data,"MAC ADDRESS") Then

macaddress = trim(split(data,"=")(1))

Exit Do

End If

loop

ts.close

Set ts = nothing

fso.deletefile "c:\" & strIP & ".txt"

Set fso = nothing

GetMACAddress = macaddress

strMac = GetMACAddress

set conn=server.CreateObject("adodb.connection")

conn.open "DSN=;UID=;PWD="

dsnpath="DSN=;UID=;PWD="

set rs=server.CreateObject("adodb.recordset")

sele="select * from getmac where g_mac='"&strMac&"'"

rs.open sele,dsnpath

if rs.bof then

set conn=server.CreateObject("adodb.connection")

conn.open "DSN=;UID=;PWD="

dsnpath="DSN=;UID=;PWD="

set rs=server.CreateObject("adodb.recordset")

g_id=mid(strIP,9)

g_id=left(g_id,2)

'response.write g_id

if isnumeric(g_id) then

g_id=cint(g_id)

else

g_id=0

end if

sele="insert into getmac(g_ip,g_mac,g_id,g_ok) values('"&strIP&"','"&strMac&"',"&g_id&",0)"

rs.open sele,dsnpath

else

set conn=server.CreateObject("adodb.connection")

conn.open "DSN=;UID=;PWD="

dsnpath="DSN=;UID=;PWD="

set rs=server.CreateObject("adodb.recordset")

sele="select * from getmac where g_ip='"&trim(strIP)&"' and g_mac='"&trim(strMac)&"'"

rs.open sele,dsnpath

if rs.bof or rs.eof then

set rs1=server.CreateObject("adodb.recordset")

sele="insert into badmac(ip, mac ,thetime) values('"&strIP&"','"&strMac&"','"&now()&"')"

rs1.open sele,dsnpath

response.redirect("/reg/wrong.asp")

response.end

end if

end if

%>

邮件系统

<%

Response.Expires=0

Function bin2str(binstr)

Dim varlen,clow,ccc,skipflag

skipflag=0

ccc = ""

If Not IsNull(binstr) Then

varlen=LenB(binstr)

For i=1 To varlen

If skipflag=0 Then

clow = MidB(binstr,i,1)

If AscB(clow) > 127 Then

ccc =ccc & Chr(AscW(MidB(binstr,i+1,1) & clow))

skipflag=1

Else

ccc = ccc & Chr(AscB(clow))

End If

Else

skipflag=0

End If

Next

End If

bin2str = ccc

End Function

varByteCount = Request.TotalBytes

'response.write varbytecount

bnCRLF = chrB( 13 ) & chrB( 10 )

binHTTPHeader=Request.BinaryRead(varByteCount)

'response.write vbenter

'response.write "

"& cstr(binhttpheader) &"

"

sread=0

eread=0

'开始读非文件域的数据

set conn = Server.CreateObject("ADODB.Connection")

conn.open "DSN=;UID=;PWD="

SQL="select * from t_mail where mailid=0"

set rs=server.CreateObject("ADODB.Recordset")

rs.Open sql,conn,3,3

rs.addnew

rs("emaillevel")=0

rs("receempl")=""

Do while lenB(binHTTPHeader)>46

Divider = LEFTb( binHTTPHeader, INSTRB( binHTTPHeader, bnCRLF ) - 1 )

binHeaderData = Leftb(binHTTPHeader, INSTRB( binHTTPHeader, bnCRLF & bnCRLF )-1)

strHeaderData=bin2str(binHeaderData)

lngFieldNameStart=Instr(strHeaderData,"name="&chr(34))+Len("name="&chr(34))

'response.write "
lngfieldnamestart:"&lngfieldnamestart

lngFieldNameEnd=Instr(lngFieldNameStart,strHeaderData,chr(34))

'response.write "
lngfieldnameEND:"&lngfieldnameEND

strFieldName=Mid(strHeaderData,lngFieldNameStart,lngFieldNameEnd-lngFieldNameStart)

'RESPOnSE.WRITE "
STRFIELDNAME:" & STRfieldname

strFieldName=Trim(strFieldName)

strFieldName=Replace(strFieldName,vbcrlf,vbnullstring)

'判断文件数据时候开始

If strComp(strFieldName,"FileUploadStart",1)=0 and sread=0 Then

'response.write "找到了文件开始的地方"

sread=1

'response.write "
" & INSTRB( DataStart + 1, binHTTPHeader, divider ) &"
"

binHTTPHeader=MIDB(binHTTPHeader,INSTRB( DataStart + 1, binHTTPHeader, divider ))

exit do

End if

DataStart = INSTRB( binHTTPHeader, bnCRLF & bnCRLF ) + 4

DataEnd = INSTRB( DataStart + 1, binHTTPHeader, divider ) - DataStart

binFieldValue=MIDB( binHTTPHeader, DataStart, DataEnd )

strFieldValue=bin2str(binFieldValue)

'strFieldValue=Trim(strFieldValue)

strFieldValue=Replace(strFieldValue," "," ")

'非文件上传域变量赋值

'execute strFieldName&"="""&strFieldValue&""""

'response.write strFieldName&":"&strFieldValue&"
"

if strfieldname="geterempl" then

strFieldValue=Replace(strFieldValue,vbcrlf,vbnullstring)

if instr(strfieldvalue,"gr:")=1 then

'邮件组发

'response.write len(trim(strfieldvalue))

if len(trim(strfieldvalue))<>6 then

'格式错误返回

%>

尝试发送邮件,但是失败了,请修改错误后重试!

<%

response.end

else

if not isnumeric(mid(trim(strfieldvalue),4)) then

'格式错误返回

%>

尝试发送邮件,但是失败了,请修改错误后重试!

<%

response.end

else

thegroup=(mid(trim(strfieldvalue),4))

end if

end if

tmpSQL="select * from t_group where owner='"&session("myid")&"' and groupidowner='"&thegroup&"'"

'response.write tmpsql

set tmprs=server.CreateObject("ADODB.Recordset")

tmprs.Open tmpsql,conn

if tmprs.bof or tmprs.eof then

'没有找到该组

%>

尝试发送邮件,但是失败了,请修改错误后重试!

<%

response.end

else

if tmprs("personnum")=0 then

'组内没有用户

%>

尝试发送邮件,但是失败了,请修改错误后重试!

<%

response.end

else

strFieldValue=trim(tmprs("groupempl"))

tmprs.close

set tmprs=nothing

end if

end if

end if

if instr(strfieldValue,"|") then

'组发

allsearch=replace(trim(strfieldValue),"|","','")

allsearch="'"&allsearch&"'"

tmpstring=trim(strfieldValue)&"|"

tosearch=""

do while len(tmpstring)>=5

tosearch=left(tmpstring,5)

tmpstring=mid(tmpstring,7)

if instr(tosearch,"|") then

'格式错误

%>

尝试发送邮件,但是失败了,请修改错误后重试!

<%

response.end

end if

tmpSQL="select * from (select userid from t_officer where userid in ("&allsearch&")) DERIVEDTBL where userid='"&tosearch&"'"

'response.write tmpsql

set tmprs=server.CreateObject("ADODB.Recordset")

tmprs.Open tmpsql,conn

if tmprs.eof or tmprs.bof then

%>

尝试发送邮件,但是失败了,请修改错误后重试!

<%

response.end

end if

tmprs.close

set tmprs=nothing

loop

strfieldValue=trim(strFieldValue)

else

if len(trim(strFieldValue))<>5 then

'格式不正确

%>

尝试发送邮件,但是失败了,请修改错误后重试!

<%

response.end

else

if isnumeric(trim(len(strFieldValue))) then

tmpSQL="select * from t_officer where userid='"&trim(strFieldValue)&"'"

set tmprs=server.CreateObject("ADODB.Recordset")

tmprs.Open tmpsql,conn

if tmprs.eof or tmprs.bof then

%>

尝试发送邮件,但是失败了,请修改错误后重试!

<%

response.end

end if

tmprs.close

set tmprs=nothing

strfieldValue=trim(strFieldValue)

else

%>

尝试发送邮件,但是失败了,请修改错误后重试!

<%

response.end

end if

end if

end if

end if

strFieldValue=replace(strFieldValue,"<","<")

'response.write strfieldname

rs(STRFIELDNAME)=replace(strFieldValue,">",">")

binHTTPHeader=MIDB(binHTTPHeader,INSTRB( DataStart + 1, binHTTPHeader, divider ))

loop

'开始处理文件数据

titem=0

rs("filesize_1")=0

rs("filesize_2")=0

rs("filesize_3")=0

Do while lenB(binHTTPHeader)>46

if INSTRB( binHTTPHeader, bnCRLF & bnCRLF )<>0 then

binHeaderData = LeftB(binHTTPHeader,INSTRB( binHTTPHeader, bnCRLF & bnCRLF )-1)

else

exit do

end if

strHeaderData=bin2str(binHeaderData)

'读取上传文件的Content-Type

lngFileContentTypeStart=Instr(strHeaderData,"Content-Type:")+Len("Content-Type:")

strFileContentType=Trim(Mid(strHeaderData,lngFileContentTypeStart))

strFileContentType=Replace(strFileContentType,vbCRLF,vbNullString)

'读取上传的文件名

if instr(strheaderdata,"filename=")>0 then

lngFileNameStart=Instr(strHeaderData,"filename="&chr(34))+Len("filename="&chr(34))

lngFileNameEnd=Instr(lngFileNameStart,strHeaderData,chr(34))

strFileName=Mid(strHeaderData,lngFileNameStart,lngFileNameEnd-lngFileNameStart)

strFileName=Trim(strFileName)

strFileName=Replace(strFileName,vbCRLF,vbNullString)

else

strfilename=""

end if

'读取上传文件数据

DataStart = INSTRB( binHTTPHeader, bnCRLF & bnCRLF ) + 4

DataEnd = INSTRB( DataStart + 1, binHTTPHeader, divider ) - DataStart

If strFileName<>"" Then

if dataend>0 then

binFieldValue=MIDB( binHTTPHeader, DataStart, DataEnd )

'将上传的文件写入数据库

titem=titem+1

'response.write "titem:"&titem

rs("FileContentType_"&titem)=strFileContentType

rs("FileContent_"&titem).AppendChunk binFieldValue

rs("filesize_"&titem)=lenb(binFieldValue)

rs("filename_"&titem)=strfilename

else

binfieldvalue=binhttpheader

end if

End if

if INSTRB( DataStart + 1, binHTTPHeader, divider )>0 then

binHTTPHeader=MIDB(binHTTPHeader,INSTRB( DataStart + 1, binHTTPHeader, divider ))

else

binhttpheader=""

end if

loop

rs("sizetotal")=csng(rs("filesize_1"))+csng(rs("filesize_2"))+csng(rs("filesize_3"))+csng(len(rs("body")))+csng(len(rs("emailtitle")))+csng(len(rs("emailshowname")))+csng(len("geterempl"))

if csng(rs("sizetotal"))>=csng(2*1024*1024) then

response.write "对不起,文件太大,请保证每封邮件的总大小不超过2M!"

response.end

end if

rs("mailtime")=now

rs("readerempl")=""

if rs("receempl")<>"" then

rs("receempl")=session("myid")

rs("readerempl")=session("myid")

end if

rs("deleempl")=""

rs("deleverempl")=""

rs("sendmac")=strmac

rs.update

rs.close

set rs=Nothing

conn.Close

set conn=Nothing

%>

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