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使用asp实现支持附件的邮件系统(二)

建站超值云服务器,限时71元/月

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>

<!–

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>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,"|") 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!

<script language="javascript">

alert("您输入的收件人格式错误!");

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

%>

尝试发送邮件,但是失败了,请修改错误后重试!

<script language="javascript">

alert("您输入的收件人<%=tosearch%>没有找到!");

history.back();

</script>

<p>

<%

response.end

end if

tmprs.close

set tmprs=nothing

loop

strfieldvalue=trim(strfieldvalue)

else

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

格式不正确

%>

尝试发送邮件,但是失败了,请修改错误后重试!

<script language="javascript">

alert("您输入的收件人<%=trim(strfieldvalue)%>不正确!");

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

%>

尝试发送邮件,但是失败了,请修改错误后重试!

<script language="javascript">

alert("您输入的收件人<%=trim(strfieldvalue)%>没有找到\r该员工可能还没有注册!");

history.back();

</script>

<p>

<%

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!

<script language="javascript">

alert("您输入的收件人<%=trim(strfieldvalue)%>不正确!");

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

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

%>

<script language=javascript>

window.open("mailok.asp",target="_self")

</script>

</body></html>

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