运用asp完成支持附件的邮件系统（二）

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
%>
<html>
<head>
<link rel="stylesheet" type="text/css" href="/css/FORUM.CSS">
<style type=text/css>

</style>
<title>邮件系统</title></head><body bgcolor="#FEF7ED">
<%
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 "<br><br>"& cstr(binhttpheader) &"<br><br>"

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 "<br>lngfieldnamestart:"&lngfieldnamestart
lngFieldNameEnd=Instr(lngFieldNameStart,strHeaderData,chr(34))
'response.write "<br>lngfieldnameEND:"&lngfieldnameEND

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

'RESPOnSE.WRITE "<BR>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 "<br>" & INSTRB( DataStart + 1, binHTTPHeader, divider ) &"<br>"
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&"<br>"

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！
<script language="javascript">
alert("您输入的收件组格式错误！\r正确的格式是:'gr:001'");
history.back();
</script>
<p>
<%
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！
<script language="javascript">
alert("您输入的收件组格式错误！\r正确的格式是:'gr:001'");
history.back();
</script>
<p>
<%
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！
<script language="javascript">
alert("您输入的收件组<%=thegroup%>没有找到！");
history.back();
</script>
<p>
<%
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！
<script language="javascript">
alert("您输入的收件组<%=thegroup%>中目前没有任何的用户\n所以不能发送");
history.back();
</script>
<p>
<%
response.end
else
strFieldValue=trim(tmprs("groupempl"))
tmprs.close
set tmprs=nothing
end if
end if
end if

if instr(strfieldValue,"

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