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使用asp完成支持附件的郵件系統(tǒng)（二）

發(fā)表時間：2023-08-13 來源：明輝站整理相關(guān)軟件相關(guān)文章人氣：

[摘要]這次講到的是處理發(fā)送的頁面，前一部分是得到發(fā)送者ip地址和mac地址，并且禁止用戶自己更改自己ip地址的代碼，因?yàn)槲覀兊南到y(tǒng)是需要對個人修改ip的行為進(jìn)行禁止的。 <%strIP = Requ...
這次講到的是處理發(fā)送的頁面，前一部分是得到發(fā)送者ip地址和mac地址，并且禁止用戶自己更改自己ip地址的代碼，因?yàn)槲覀兊南到y(tǒng)是需要對個人修改ip的行為進(jìn)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>
<!--
input { font-size: 9pt; color: #0011dd; background-color: #e9e9f9; padding-top: 0px}
select { font-size: 9pt; color: #0011dd; background-color: #e9e9f9; padding-top: 0px}
textarea { font-size: 9pt; color: #0011dd; background-color: #e9e9f9; padding-top: 0px}
-->
</style>
<title>郵件系統(tǒng)</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


'開始讀非文件域的數(shù)據(jù)
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)

'判斷文件數(shù)據(jù)時候開始

If strComp(strFieldName,"FileUploadStart",1)=0 and sread=0 Then
'response.write "找到了文件開始的地方"
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," "," ")

'非文件上傳域變量賦值
'execute strFieldName&"="""&strFieldValue&""""
'response.write strFieldName&":"&strFieldValue&"<br>"

if strfieldname="geterempl" then
strFieldValue=Replace(strFieldValue,vbcrlf,vbnullstring)
if instr(strfieldvalue,"gr:")=1 then
'郵件組發(fā)

'response.write len(trim(strfieldvalue))
if len(trim(strfieldvalue))<>6 then
'格式錯誤返回
%>

嘗試發(fā)送郵件，但是失敗了，請修改錯誤后重試！
<script language="javascript">
alert("您輸入的收件組格式錯誤！\r正確的格式是:'gr:001'");
history.back();
</script>
<p>
<%
response.end
else
if not isnumeric(mid(trim(strfieldvalue),4)) then
'格式錯誤返回
%>

嘗試發(fā)送郵件，但是失敗了，請修改錯誤后重試！
<script language="javascript">
alert("您輸入的收件組格式錯誤！\r正確的格式是:'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
'沒有找到該組
%>
嘗試發(fā)送郵件，但是失敗了，請修改錯誤后重試！
<script language="javascript">
alert("您輸入的收件組<%=thegroup%>沒有找到！");
history.back();
</script>
<p>
<%
response.end
else
if tmprs("personnum")=0 then
'組內(nèi)沒有用戶
%>
嘗試發(fā)送郵件，但是失敗了，請修改錯誤后重試！
<script language="javascript">
alert("您輸入的收件組<%=thegroup%>中目前沒有任何的用戶\n所以不能發(fā)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," ") then
'組發(fā)
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
'格式錯誤
%>
嘗試發(fā)送郵件，但是失敗了，請修改錯誤后重試！
<script language="javascript">
alert("您輸入的收件人格式錯誤!");
history.back();
</script>
<p>
<%
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
%>
嘗試發(fā)送郵件，但是失敗了，請修改錯誤后重試！
<script language="javascript">
alert("您輸入的收件人<%=tosearch%>沒有找到!");
history.back();
</script>
<p>
<%
response.end
end if
tmprs.close
set tmprs=nothing
loop
strfieldValue=trim(strFieldValue)

else
if len(trim(strFieldValue))<>5 then
'格式不正確
%>
嘗試發(fā)送郵件，但是失敗了，請修改錯誤后重試！
<script language="javascript">
alert("您輸入的收件人<%=trim(strFieldValue)%>不正確!");
history.back();
</script>
<p>
<%
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
%>
嘗試發(fā)送郵件，但是失敗了，請修改錯誤后重試！
<script language="javascript">
alert("您輸入的收件人<%=trim(strFieldValue)%>沒有找到\r該員工可能還沒有注冊!");
history.back();
</script>
<p>
<%
response.end
end if
tmprs.close
set tmprs=nothing


strfieldValue=trim(strFieldValue)
else
%>
嘗試發(fā)送郵件，但是失敗了，請修改錯誤后重試！
<script language="javascript">
alert("您輸入的收件人<%=trim(strFieldValue)%>不正確!");
history.back();
</script>

<p> <%
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
'開始處理文件數(shù)據(jù)

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)


'讀取上傳文件的Content-Type
lngFileContentTypeStart=Instr(strHeaderData,"Content-Type:")+Len("Content-Type:")
strFileContentType=Trim(Mid(strHeaderData,lngFileContentTypeStart))
strFileContentType=Replace(strFileContentType,vbCRLF,vbNullString)

'讀取上傳的文件名
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

'讀取上傳文件數(shù)據(jù)
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 )
'將上傳的文件寫入數(shù)據(jù)庫
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 "對不起,文件太大，請保證每封郵件的總大小不超過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

%>
<script language=javascript>
window.open("mailok.asp",target="_self")
</script>
</body></html>