# SMTP.TCL - sent mail routine## Copyright 1996 Wind River Systems, Inc.## modification history# -----------------------# 01a,19apr96,sks  written.############ smtpMailSend - Using the Tclized socket interface provided in the# "GensockTcl.dll", this routine sends e-mail via the SMTP protocol.# Arguments include:##    sender - "From:" name of the SMTP sender#    toList - "To:" a list containing SMTP recipent addresses#    ccList - "Cc:" a list containing SMTP "Cc:" recipent addresses#    bccList - "Bcc" a list containing SMTP "Bcc:" (blind) recipent addresses#    subject - the subject line for the message#    msgContents - the name of the file containing the message to be sent#    server - the SMTP server name#    attachmentList - a list of files to be attached#proc smtpMailSend {mailDate sender toList ccList bccList subject    \                   msgContents server attachmentList} {    global setupVals    set error ""    set msgFile ""    set smtpSocket ""    if {$error == ""} {        # Connect to the SMTP server        if {[catch {gensockConnect $server "smtp"} smtpSocket] && \            [catch {gensockConnect $server "25"} smtpSocket]} {            set error "unable to connect to SMTP server '$server'"            puts "Error: $smtpSocket"            set smtpSocket ""        }    }    if {$error == ""} {        # The first line from the SMTP server should be "220".        if {[catch "gensockGetLine $smtpSocket" response] || \            ![string match "220*" $response]} {            set error "SMTP server error: $response");        }    }    if {$error == ""} {        # Fetch the name of this host to be provided to the SMTP server.        set thisHostName [gensockGetHostname]        # "Login" to the SMTP server and response should be "250".        set message "HELO $thisHostName\r\n"        if {[catch {gensockPutData $smtpSocket $message [string length $message]} \             response] || [catch {gensockGetLine $smtpSocket} response] || \            ![string match "250*" $response]} {            set error "SMTP server error: $response"         }    }    if {$error == ""} {        # Announce the sender and the response should be "250".        set message "MAIL From:<$sender>\r\n"        if {[catch {gensockPutData $smtpSocket $message [string length $message]} \             response] || [catch {gensockGetLine $smtpSocket} response] || \            ![string match "250*" $response]} {            set error "SMTP server does not recognize '$sender': $response"        }    }    if {$error == ""} {        set recipients [concat $toList $ccList $bccList]        # Send each recipient name in 'recipients'; for each the response should be "250".        for {set i 0} {$i < [llength $recipients]} {incr i} {            if {$error == ""} {                set recipient [lindex $recipients $i]                set message "RCPT To: <$recipient>\r\n"                if {[catch {gensockPutData $smtpSocket $message [string length $message]}\                    response] || [catch {gensockGetLine $smtpSocket} response] || \                    ![string match "250*" $response]} {                    set error "SMTP server does not like '$recipient': $response"                }            }        }    }    if {$error == ""} {        # Announce the sender and the response should be "354".        set message "DATA\r\n"        if {[catch {gensockPutData $smtpSocket $message [string length $message]} \             response] || [catch {gensockGetLine $smtpSocket} response] || \            ![string match "354*" $response]} {            set error "SMTP not accepting message data: $response"        }    }    if {$error == ""} {        # Put the header portion of "DATA" together.        set header ""        # First the "Date:" field.        append header "Date: $mailDate\n"        # Next the "From:" field.        append header "From: [lindex $sender 0]\n"        # Next the "Subject:" field.        append header "Subject: $subject\n"        # Next the "To:" field.        if {[llength $toList] == "1"} {            append header "To: [lindex $toList 0]\n"        } else {            append header "To: $toList\n"        }        # Next the "Cc:" field, if it exists.        if {[string length $ccList]} {            if {[llength $ccList] == "1"} {                append header "Cc: [lindex $ccList 0]\n"            } else {                append header "Cc: $ccList\n"            }        }        # Next the "X-Mailer:" field.        append header "X-Mailer: <Tornado Setup>\n"        # Terminate the header with "\n"        append header "\n"        # Send the header.        if {[catch {gensockPutDataBuffered $smtpSocket $header \                      [string length $header]} response]} {            set error "SMTP socket write error: '$response'"        }    }    if {$error == ""} {        # Put the body of the message together and send it.        foreach line $msgContents {            # If the line starts with a ".", make it start with *two* dots.            if {[string index $line 0] == "."} {                set line [format ".%s" $line]            }            # Substitute multiple line breaks ("\r") with single \r.            regsub -all \r+ $line \r line            set message "$line\n"            if {[catch {gensockPutDataBuffered $smtpSocket $message \                          [string length $message]} response]} {                set error "SMTP socket write error: '$response'"                break            }        }    }    if {$error == ""} {        # UUEncode each attachment and send each one individually.        foreach attachment $attachmentList {            # UUEncode '$attachment'            if [catch {uuencode $attachment \                       [file tail $attachment]} tmpFilename] {                set error $tmpFilename                break            }            # Open the UUEncoded file.            if [catch {open $tmpFilename r} tmpFile] {                set error "unable to open temp. file $tmpfilename"                break;            }            # Place a couple of blank lines before each attachment.            if {[catch {gensockPutDataBuffered $smtpSocket \                          "\r\n\r\n" 4} response]} {                set error "SMTP socket write error: '$response'"                break;            }            # Write the entire contents of the UUEncoded file to SMTP socket.            set tmpFileContents [split [read $tmpFile] \n]            foreach line $tmpFileContents {                # If the line starts with a ".", make it start with *two* dots.                if {[string index $line 0] == "."} {                    set line [format ".%s" $line]                }                if [catch {gensockPutDataBuffered $smtpSocket "$line\n" \                              [expr [string length $line] + 1]} response] {                    set error "SMTP socket write error: '$response'"                    break                }            }            close $tmpFile            file delete $tmpFilename            gensockFlushBufferedData $smtpSocket        }    }    if {$error == ""} {        # Terminate the DATA section with a final "." surrounded by new-lines.        set message "\r\n.\r\n"        if {[catch {gensockPutDataBuffered $smtpSocket $message \                      [string length $message]} response]} {            set error "SMTP socket write error: '$response'"        } {            gensockFlushBufferedData $smtpSocket        }    }    if {$error == ""} {        # "Logoff" the SMTP server and response should be "250".        set message "QUIT\r\n"        if {[catch {gensockPutData $smtpSocket $message [string length $message]} \             response] || [catch {gensockGetLine $smtpSocket} response] || \            ![string match "250*" $response]} {            set error "SMTP server error: $response"        }    }    # Close away the message file handle.    if {$msgFile != ""} {        close $msgFile    }    # Close away the SMTP socket.    if {$smtpSocket != ""} {        gensockClose $smtpSocket    }    if {$error != ""} {        error $error    }}