sendemail好东西
- 参考
https://github.com/mogaal/sendemail/blob/master/sendEmail
代码
#!/usr/bin/perl -w
##############################################################################
## sendEmail
## Written by: Brandon Zehm ; chomp $opt{'password'};
if (!$opt{'password'}) {
quit("ERROR => A username for SMTP authentication was specified, but no password!", 1);
}
}
}
## Validate the TLS setting
$opt{'tls'} = lc($opt{'tls'});
if ($opt{'tls'} !~ /^(auto|yes|no)$/) {
quit("ERROR => Invalid TLS setting ($opt{'tls'}). Must be one of auto, yes, or no.", 1);
}
## If TLS is set to "yes", make sure sendEmail loaded the libraries needed.
if ($opt{'tls'} eq 'yes' and $conf{'tls_client'} == 0) {
quit("ERROR => No TLS support! SendEmail can't load required libraries. (try installing Net::SSLeay and IO::Socket::SSL)", 1);
}
## Return 0 errors
return(0);
}
## getline($socketRef)
sub getline {
my ($socketRef) = @_;
local ($/) = "\r\n";
return $$socketRef->getline;
}
## Receive a (multiline?) SMTP response from ($socketRef)
sub getResponse {
my ($socketRef) = @_;
my ($tmp, $reply);
local ($/) = "\r\n";
return undef unless defined($tmp = getline($socketRef));
return("getResponse() socket is not open") unless ($$socketRef->opened);
## Keep reading lines if it's a multi-line response
while ($tmp =~ /^\d{3}-/o) {
$reply .= $tmp;
return undef unless defined($tmp = getline($socketRef));
}
$reply .= $tmp;
$reply =~ s/\r?\n$//o;
return $reply;
}
###############################################################################################
## Function: SMTPchat ( [string $command] )
##
## Description: Sends $command to the SMTP server (on SERVER) and awaits a successful
## reply form the server. If the server returns an error, or does not reply
## within $conf{'alarm'} seconds an error is generated.
## NOTE: $command is optional, if no command is specified then nothing will
## be sent to the server, but a valid response is still required from the server.
##
## Input: [$command] A (optional) valid SMTP command (ex. "HELO")
##
##
## Output: Returns zero on success, or non-zero on error.
## Error messages will be stored in $conf{'error'}
## A copy of the last SMTP response is stored in the global variable
## $conf{'SMTPchat_response'}
##
##
## Example: SMTPchat ("HELO mail.isp.net");
###############################################################################################
sub SMTPchat {
my ($command) = @_;
printmsg("INFO => Sending: \t$command", 1) if ($command);
## Send our command
print $SERVER "$command$CRLF" if ($command);
## Read a response from the server
$SIG{'ALRM'} = sub { $conf{'error'} = "alarm"; $SERVER->close(); };
alarm($conf{'alarm'}) if ($^O !~ /win/i); ## alarm() doesn't work in win32;
my $result = $conf{'SMTPchat_response'} = getResponse(\$SERVER);
alarm(0) if ($^O !~ /win/i); ## alarm() doesn't work in win32;
## Generate an alert if we timed out
if ($conf{'error'} eq "alarm") {
$conf{'error'} = "ERROR => Timeout while reading from $conf{'server'}:$conf{'port'} There was no response after $conf{'alarm'} seconds.";
return(1);
}
## Make sure the server actually responded
if (!$result) {
$conf{'error'} = "ERROR => $conf{'server'}:$conf{'port'} returned a zero byte response to our query.";
return(2);
}
## Validate the response
if (evalSMTPresponse($result)) {
## conf{'error'} will already be set here
return(2);
}
## Print the success messsage
printmsg($conf{'error'}, 1);
## Return Success
return(0);
}
###############################################################################################
## Function: evalSMTPresponse (string $message )
##
## Description: Searches $message for either an SMTP success or error code, and returns
## 0 on success, and the actual error code on error.
##
##
## Input: $message Data received from a SMTP server (ex. "220
##
##
## Output: Returns zero on success, or non-zero on error.
## Error messages will be stored in $conf{'error'}
##
##
## Example: SMTPchat ("HELO mail.isp.net");
###############################################################################################
sub evalSMTPresponse {
my ($message) = @_;
## Validate input
if (!$message) {
$conf{'error'} = "ERROR => No message was passed to evalSMTPresponse(). What happened?";
return(1)
}
printmsg("DEBUG => evalSMTPresponse() - Checking for SMTP success or error status in the message: $message ", 3);
## Look for a SMTP success code
if ($message =~ /^([23]\d\d)/) {
printmsg("DEBUG => evalSMTPresponse() - Found SMTP success code: $1", 2);
$conf{'error'} = "SUCCESS => Received: \t$message";
return(0);
}
## Look for a SMTP error code
if ($message =~ /^([45]\d\d)/) {
printmsg("DEBUG => evalSMTPresponse() - Found SMTP error code: $1", 2);
$conf{'error'} = "ERROR => Received: \t$message";
return($1);
}
## If no SMTP codes were found return an error of 1
$conf{'error'} = "ERROR => Received a message with no success or error code. The message received was: $message";
return(2);
}
#########################################################
# SUB: &return_month(0,1,etc)
# returns the name of the month that corrosponds
# with the number. returns 0 on error.
#########################################################
sub return_month {
my $x = $_[0];
if ($x == 0) { return 'Jan'; }
if ($x == 1) { return 'Feb'; }
if ($x == 2) { return 'Mar'; }
if ($x == 3) { return 'Apr'; }
if ($x == 4) { return 'May'; }
if ($x == 5) { return 'Jun'; }
if ($x == 6) { return 'Jul'; }
if ($x == 7) { return 'Aug'; }
if ($x == 8) { return 'Sep'; }
if ($x == 9) { return 'Oct'; }
if ($x == 10) { return 'Nov'; }
if ($x == 11) { return 'Dec'; }
return (0);
}
#########################################################
# SUB: &return_day(0,1,etc)
# returns the name of the day that corrosponds
# with the number. returns 0 on error.
#########################################################
sub return_day {
my $x = $_[0];
if ($x == 0) { return 'Sun'; }
if ($x == 1) { return 'Mon'; }
if ($x == 2) { return 'Tue'; }
if ($x == 3) { return 'Wed'; }
if ($x == 4) { return 'Thu'; }
if ($x == 5) { return 'Fri'; }
if ($x == 6) { return 'Sat'; }
return (0);
}
###############################################################################################
## Function: returnAddressParts(string $address)
##
## Description: Returns a two element array containing the "Name" and "Address" parts of
## an email address.
##
## Example: "Brandon Zehm "
## would return: ("Brandon Zehm", "[email protected]");
##
## "[email protected]"
## would return: ("[email protected]", "[email protected]")
###############################################################################################
sub returnAddressParts {
my $input = $_[0];
my $name = "";
my $address = "";
## Make sure to fail if it looks totally invalid
if ($input !~ /(\S+\@\S+)/) {
$conf{'error'} = "ERROR => The address [$input] doesn't look like a valid email address, ignoring it";
return(undef());
}
## Check 1, should find addresses like: "Brandon Zehm "
elsif ($input =~ /^\s*(\S(.*\S)?)\s*<(\S+\@\S+)>/o) {
($name, $address) = ($1, $3);
}
## Otherwise if that failed, just get the address: ) { ## Read a line from the (binary) file
$res .= $_;
###################################
## Convert binary data to base64 ##
###################################
while ($res =~ s/(.{45})//s) { ## Get 45 bytes from the binary string
$tmp = substr(pack('u', $&), 1); ## Convert the binary to uuencoded text
chop($tmp);
$tmp =~ tr|` -_|AA-Za-z0-9+/|; ## Translate from uuencode to base64
$base64 .= $tmp;
}
################################
## Print chunks to the server ##
################################
while ($base64 =~ s/(.{76})//s) {
print $SERVER "$1$CRLF";
}
}
###################################
## Encode and send the leftovers ##
###################################
my $padding = "";
if ( ($res) and (length($res) >= 1) ) {
$padding = (3 - length($res) % 3) % 3; ## Set flag if binary data isn't divisible by 3
$res = substr(pack('u', $res), 1); ## Convert the binary to uuencoded text
chop($res);
$res =~ tr|` -_|AA-Za-z0-9+/|; ## Translate from uuencode to base64
}
############################
## Fix padding at the end ##
############################
$res = $base64 . $res; ## Get left overs from above
$res =~ s/.{$padding}$/'=' x $padding/e if $padding; ## Fix the end padding if flag (from above) is set
if ($res) {
while ($res =~ s/(.{1,76})//s) { ## Send it to the email server.
print $SERVER "$1$CRLF";
}
}
close (FILETOATTACH) || do {
printmsg("ERROR - Closing the filehandle for file [$filename] failed with the error: $!", 0);
return(2);
};
## Return 0 errors
return(0);
}
###############################################################################################
## Function: $string = get_hostname (boot $fqdn)
##
## Description: Tries really hard to returns the short (or FQDN) hostname of the current
## system. Uses techniques and code from the Sys-Hostname module.
##
## Input: $fqdn A true value (1) will cause this function to return a FQDN hostname
## rather than a short hostname.
##
## Output: Returns a string
###############################################################################################
sub get_hostname {
## Assign incoming parameters to variables
my ( $fqdn ) = @_;
my $hostname = "";
## STEP 1: Get short hostname
## Load Sys::Hostname if it's available
eval { require Sys::Hostname; };
unless ($@) {
$hostname = Sys::Hostname::hostname();
}
## If that didn't get us a hostname, try a few other things
else {
## Windows systems
if ($^O !~ /win/i) {
if ($ENV{'COMPUTERNAME'}) { $hostname = $ENV{'COMPUTERNAME'}; }
if (!$hostname) { $hostname = gethostbyname('localhost'); }
if (!$hostname) { chomp($hostname = `hostname 2> NUL`) };
}
## Unix systems
else {
local $ENV{PATH} = '/usr/bin:/bin:/usr/sbin:/sbin'; ## Paranoia
## Try the environment first (Help! What other variables could/should I be checking here?)
if ($ENV{'HOSTNAME'}) { $hostname = $ENV{'HOSTNAME'}; }
## Try the hostname command
eval { local $SIG{__DIE__}; local $SIG{CHLD}; $hostname = `hostname 2>/dev/null`; chomp($hostname); } ||
## Try POSIX::uname(), which strictly can't be expected to be correct
eval { local $SIG{__DIE__}; require POSIX; $hostname = (POSIX::uname())[1]; } ||
## Try the uname command
eval { local $SIG{__DIE__}; $hostname = `uname -n 2>/dev/null`; chomp($hostname); };
}
## If we can't find anything else, return ""
if (!$hostname) {
print "WARNING => No hostname could be determined, please specify one with -o fqdn=FQDN option!\n";
return("unknown");
}
}
## Return the short hostname
unless ($fqdn) {
$hostname =~ s/\..*//;
return(lc($hostname));
}
## STEP 2: Determine the FQDN
## First, if we already have one return it.
if ($hostname =~ /\w\.\w/) { return(lc($hostname)); }
## Next try using
eval { $fqdn = (gethostbyname($hostname))[0]; };
if ($fqdn) { return(lc($fqdn)); }
return(lc($hostname));
}
###############################################################################################
## Function: printmsg (string $message, int $level)
##
## Description: Handles all messages - printing them to the screen only if the messages
## $level is >= the global debug level. If $conf{'logFile'} is defined it
## will also log the message to that file.
##
## Input: $message A message to be printed, logged, etc.
## $level The debug level of the message. If
## not defined 0 will be assumed. 0 is
## considered a normal message, 1 and
## higher is considered a debug message.
##
## Output: Prints to STDOUT
##
## Assumptions: $conf{'hostname'} should be the name of the computer we're running on.
## $conf{'stdout'} should be set to 1 if you want to print to stdout
## $conf{'logFile'} should be a full path to a log file if you want that
## $conf{'debug'} should be an integer between 0 and 10.
##
## Example: printmsg("WARNING: We believe in generic error messages... NOT!", 0);
###############################################################################################
sub printmsg {
## Assign incoming parameters to variables
my ( $message, $level ) = @_;
## Make sure input is sane
$level = 0 if (!defined($level));
$message =~ s/\s+$//sgo;
$message =~ s/\r?\n/, /sgo;
## Continue only if the debug level of the program is >= message debug level.
if ($conf{'debug'} >= $level) {
## Get the date in the format: Dec 3 11:14:04
my ($sec, $min, $hour, $mday, $mon) = localtime();
$mon = ('Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec')[$mon];
my $date = sprintf("%s %02d %02d:%02d:%02d", $mon, $mday, $hour, $min, $sec);
## Print to STDOUT always if debugging is enabled, or if conf{stdout} is true.
if ( ($conf{'debug'} >= 1) or ($conf{'stdout'} == 1) ) {
print "$date $conf{'hostname'} $conf{'programName'}\[$$\]: $message\n";
}
## Print to the log file if $conf{'logging'} is true
if ($conf{'logFile'}) {
if (openLogFile($conf{'logFile'})) { $conf{'logFile'} = ""; printmsg("ERROR => Opening the file [$conf{'logFile'}] for appending returned the error: $!", 1); }
print LOGFILE "$date $conf{'hostname'} $conf{'programName'}\[$$\]: $message\n";
}
}
## Return 0 errors
return(0);
}
###############################################################################################
## FUNCTION:
## openLogFile ( $filename )
##
##
## DESCRIPTION:
## Opens the file $filename and attaches it to the filehandle "LOGFILE". Returns 0 on success
## and non-zero on failure. Error codes are listed below, and the error message gets set in
## global variable $!.
##
##
## Example:
## openFile ("/var/log/sendEmail.log");
##
###############################################################################################
sub openLogFile {
## Get the incoming filename
my $filename = $_[0];
## Make sure our file exists, and if the file doesn't exist then create it
if ( ! -f $filename ) {
print STDERR "NOTICE: The log file [$filename] does not exist. Creating it now with mode [0600].\n" if ($conf{'stdout'});
open (LOGFILE, ">>$filename");
close LOGFILE;
chmod (0600, $filename);
}
## Now open the file and attach it to a filehandle
open (LOGFILE,">>$filename") or return (1);
## Put the file into non-buffering mode
select LOGFILE;
$| = 1;
select STDOUT;
## Return success
return(0);
}
###############################################################################################
## Function: read_file (string $filename)
##
## Description: Reads the contents of a file and returns a two part array:
## ($status, $file-contents)
## $status is 0 on success, non-zero on error.
##
## Example: ($status, $file) = read_file("/etc/passwd");
###############################################################################################
sub read_file {
my ( $filename ) = @_;
## If the value specified is a file, load the file's contents
if ( (-e $filename and -r $filename) ) {
my $FILE;
if(!open($FILE, ' ' . $filename)) {
return((1, ""));
}
my $file = '';
while (<$FILE>) {
$file .= $_;
}
## Strip an ending \r\n
$file =~ s/\r?\n$//os;
}
return((1, ""));
}
###############################################################################################
## Function: quit (string $message, int $errorLevel)
##
## Description: Exits the program, optionally printing $message. It
## returns an exit error level of $errorLevel to the
## system (0 means no errors, and is assumed if empty.)
##
## Example: quit("Exiting program normally", 0);
###############################################################################################
sub quit {
my ( $message, $errorLevel ) = @_;
$errorLevel = 0 if (!defined($errorLevel));
## Print exit message
if ($message) {
printmsg($message, 0);
}
## Exit
exit($errorLevel);
}
###############################################################################################
## Function: help ()
##
## Description: For all those newbies ;)
## Prints a help message and exits the program.
##
###############################################################################################
sub help {
exit(1) if (!$conf{'stdout'});
print <${colorBold}$conf{'programName'}-$conf{'version'} by $conf{'authorName'} <$conf{'authorEmail'}>${colorNoBold}
Synopsis: $conf{'programName'} -f ADDRESS [options]
${colorRed}Required:${colorNormal}
-f ADDRESS from (sender) email address
* At least one recipient required via -t, -cc, or -bcc
* Message body required via -m, STDIN, or -o message-file=FILE
${colorGreen}Common:${colorNormal}
-t ADDRESS [ADDR ...] to email address(es)
-u SUBJECT message subject
-m MESSAGE message body
-s SERVER[:PORT] smtp mail relay, default is $conf{'server'}:$conf{'port'}
${colorGreen}Optional:${colorNormal}
-a FILE [FILE ...] file attachment(s)
-cc ADDRESS [ADDR ...] cc email address(es)
-bcc ADDRESS [ADDR ...] bcc email address(es)
-xu USERNAME username for SMTP authentication
-xp PASSWORD password for SMTP authentication
${colorGreen}Paranormal:${colorNormal}
-b BINDADDR[:PORT] local host bind address
-l LOGFILE log to the specified file
-v verbosity, use multiple times for greater effect
-q be quiet (i.e. no STDOUT output)
-o NAME=VALUE advanced options, for details try: --help misc
-o message-content-type=
-o message-file=FILE -o message-format=raw
-o message-header=HEADER -o message-charset=CHARSET
-o reply-to=ADDRESS -o timeout=SECONDS
-o username=USERNAME -o password=PASSWORD
-o tls=no> -o fqdn=FQDN
${colorGreen}Help:${colorNormal}
--help the helpful overview you're reading now
--help addressing explain addressing and related options
--help message explain message body input and related options
--help networking explain -s, -b, etc
--help output explain logging and other output options
--help misc explain -o options, TLS, SMTP auth, and more
EOM
exit(1);
}
###############################################################################################
## Function: helpTopic ($topic)
##
## Description: For all those newbies ;)
## Prints a help message and exits the program.
##
###############################################################################################
sub helpTopic {
exit(1) if (!$conf{'stdout'});
my ($topic) = @_;
CASE: {
## ADDRESSING
($topic eq 'addressing') && do {
print <s
email address.
-t ADDRESS [ADDRESS ...]
This option specifies the primary recipient(s). At least one recipient
address must be specified via the -t, -cc. or -bcc options.
-cc ADDRESS [ADDRESS ...]
This option specifies the "carbon copy" recipient(s). At least one
recipient address must be specified via the -t, -cc. or -bcc options.
-bcc ADDRESS [ADDRESS ...]
This option specifies the "blind carbon copy" recipient(s). At least
one recipient address must be specified via the -t, -cc. or -bcc options.
-o reply-to=ADDRESS
This option specifies that an optional "Reply-To" address should be
written in the email's headers.
${colorGreen}Email Address Syntax${colorNormal}
Email addresses may be specified in one of two ways:
Full Name: "John Doe "
Just Address: "john.doe\@gmail.com"
The "Full Name" method is useful if you want a name, rather than a plain
email address, to be displayed in the recipient' s From, To, or Cc fields
when they view the message.
${colorGreen}Multiple Recipients${colorNormal}
The -t, -cc, and -bcc options each accept multiple addresses. They may be
specified by separating them by either a white space, comma, or semi-colon
separated list. You may also specify the -t, -cc, and -bcc options multiple
times, each occurance will append the new recipients to the respective list.
Examples:
(I used "-t" in these examples, but it can be "-cc" or "-bcc" as well)
* Space separated list:
-t jane.doe\@yahoo.com "John Doe "
* Semi-colon separated list:
-t "jane.doe\@yahoo.com; John Doe "
* Comma separated list:
-t "jane.doe\@yahoo.com, John Doe "
* Multiple -t, -cc, or -bcc options:
-t "jane.doe\@yahoo.com" -t "John Doe "
EOM
last CASE;
};
## MESSAGE
($topic eq 'message') && do {
print <${colorBold} MESSAGE DOCUMENTATION${colorNormal}
${colorGreen}Message Options${colorNormal}
Options related to the email message body:
-u SUBJECT
-m MESSAGE
-o message-file=FILE
-o message-content-type=
-o message-header=EMAIL HEADER
-o message-charset=CHARSET
-o message-format=raw
-u SUBJECT
This option allows you to specify the subject for your email message.
It is not required (anymore) that the subject be quoted, although it
is recommended. The subject will be read until an argument starting
with a hyphen (-) is found.
Examples:
-u "Contact information while on vacation"
-u New Microsoft vulnerability discovered
-m MESSAGE
This option is one of three methods that allow you to specify the message
body for your email. The message may be specified on the command line
with this -m option, read from a file with the -o message-file=FILE
option, or read from STDIN if neither of these options are present.
It is not required (anymore) that the message be quoted, although it is
recommended. The message will be read until an argument starting with a
hyphen (-) is found.
Examples:
-m "See you in South Beach, Hawaii. -Todd"
-m Please ensure that you upgrade your systems right away
Multi-line message bodies may be specified with the -m option by putting
a "\\n" into the message. Example:
-m "This is line 1.\\nAnd this is line 2."
HTML messages are supported, simply begin your message with "" and
sendEmail will properly label the mime header so MUAs properly render
the message. It is currently not possible without "-o message-format=raw"
to send a message with both text and html parts with sendEmail.
-o message-file=FILE
This option is one of three methods that allow you to specify the message
body for your email. To use this option simply specify a text file
containing the body of your email message. Examples:
-o message-file=/root/message.txt
-o message-file="C:\\Program Files\\output.txt"
-o message-content-type=
This option allows you to specify the content-type of the email. If your
email message is an html message but is being displayed as a text message
just add "-o message-content-type=html" to the command line to force it
to display as an html message. This actually just changes the Content-Type:
header. Advanced users will be happy to know that if you specify anything
other than the three options listed above it will use that as the vaule
for the Content-Type header.
-o message-header=EMAIL HEADER
This option allows you to specify additional email headers to be included.
To add more than one message header simply use this option on the command
line more than once. If you specify a message header that sendEmail would
normally generate the one you specified will be used in it's place.
Do not use this unless you know what you are doing!
Example:
To scare a Microsoft Outlook user you may want to try this:
-o message-header="X-Message-Flag: Message contains illegal content"
Example:
To request a read-receipt try this:
-o message-header="Disposition-Notification-To: "
Example:
To set the message priority try this:
-o message-header="X-Priority: 1"
Priority reference: 1=highest, 2=high, 3=normal, 4=low, 5=lowest
-o message-charset=CHARSET
This option allows you to specify the character-set for the message body.
The default is iso-8859-1.
-o message-format=raw
This option instructs sendEmail to assume the message (specified with -m,
read from STDIN, or read from the file specified in -o message-file=FILE)
is already a *complete* email message. SendEmail will not generate any
headers and will transmit the message as-is to the remote SMTP server.
Due to the nature of this option the following command line options will
be ignored when this one is used:
-u SUBJECT
-o message-header=EMAIL HEADER
-o message-charset=CHARSET
-a ATTACHMENT
${colorGreen}The Message Body${colorNormal}
The email message body may be specified in one of three ways:
1) Via the -m MESSAGE command line option.
Example:
-m "This is the message body"
2) By putting the message body in a file and using the -o message-file=FILE
command line option.
Example:
-o message-file=/root/message.txt
3) By piping the message body to sendEmail when nither of the above command
line options were specified.
Example:
grep "ERROR" /var/log/messages | sendEmail -t you\@domain.com ...
If the message body begins with "" then the message will be treated as
an HTML message and the MIME headers will be written so that a HTML capable
email client will display the message in it' s HTML form.
Any of the above methods may be used with the -o message-format=raw option
to deliver an already complete email message.
EOM
last CASE;
};
## MISC
($topic eq 'misc') && do {
print <${colorBold}MISC DOCUMENTATION${colorNormal}
${colorGreen}Misc Options${colorNormal}
Options that don't fit anywhere else:
-a ATTACHMENT [ATTACHMENT ...]
-xu USERNAME
-xp PASSWORD
-o username=USERNAME
-o password=PASSWORD
-o tls=
-o timeout=SECONDS
-o fqdn=FQDN
-a ATTACHMENT [ATTACHMENT ...]
This option allows you to attach any number of files to your email message.
To specify more than one attachment, simply separate each filename with a
space. Example: -a file1.txt file2.txt file3.txt
-xu USERNAME
Alias for -o username=USERNAME
-xp PASSWORD
Alias for -o password=PASSWORD
-o username=USERNAME (synonym for -xu)
These options allow specification of a username to be used with SMTP
servers that require authentication. If a username is specified but a
password is not, you will be prompted to enter one at runtime.
-o password=PASSWORD (synonym for -xp)
These options allow specification of a password to be used with SMTP
servers that require authentication. If a username is specified but a
password is not, you will be prompted to enter one at runtime.
-o tls=
This option allows you to specify if TLS (SSL for SMTP) should be enabled
or disabled. The default, auto, will use TLS automatically if your perl
installation has the IO::Socket::SSL and Net::SSLeay modules available,
and if the remote SMTP server supports TLS. To require TLS for message
delivery set this to yes. To disable TLS support set this to no. A debug
level of one or higher will reveal details about the status of TLS.
-o timeout=SECONDS
This option sets the timeout value in seconds used for all network reads,
writes, and a few other things.
-o fqdn=FQDN
This option sets the Fully Qualified Domain Name used during the initial
SMTP greeting. Normally this is automatically detected, but in case you
need to manually set it for some reason or get a warning about detection
failing, you can use this to override the default.
EOM
last CASE;
};
## NETWORKING
($topic eq ' networking') && do {
print <
-o timeout=SECONDS
-s SERVER[:PORT]
This option allows you to specify the SMTP server sendEmail should
connect to to deliver your email message to. If this option is not
specified sendEmail will try to connect to localhost:25 to deliver
the message. THIS IS MOST LIKELY NOT WHAT YOU WANT, AND WILL LIKELY
FAIL unless you have a email server (commonly known as an MTA) running
on your computer!
Typically you will need to specify your company or ISP' s email server.
For example, if you use CableOne you will need to specify:
-s mail.cableone.net
If you have your own email server running on port 300 you would
probably use an option like this:
-s myserver.mydomain.com:300
If you're a GMail user try:
-s smtp.gmail.com:587 -xu me\@gmail.com -xp PASSWD
-b BINDADDR[:PORT]
This option allows you to specify the local IP address (and optional
tcp port number) for sendEmail to bind to when connecting to the remote
SMTP server. This useful for people who need to send an email from a
specific network interface or source address and are running sendEmail on
a firewall or other host with several network interfaces.
-o tls=
This option allows you to specify if TLS (SSL for SMTP) should be enabled
or disabled. The default, auto, will use TLS automatically if your perl
installation has the IO::Socket::SSL and Net::SSLeay modules available,
and if the remote SMTP server supports TLS. To require TLS for message
delivery set this to yes. To disable TLS support set this to no. A debug
level of one or higher will reveal details about the status of TLS.
-o timeout=SECONDS
This option sets the timeout value in seconds used for all network reads,
writes, and a few other things.
EOM
last CASE;
};
## OUTPUT
($topic eq ' output') && do {
print < The help topic specified is not valid!", 1);
};
exit(1);
}
#############################
## ##
## MAIN PROGRAM ##
## ##
#############################
## Initialize
initialize();
## Process Command Line
processCommandLine();
$conf{' alarm'} = $opt{'timeout'};
## Abort program after $conf{'alarm'} seconds to avoid infinite hangs
alarm($conf{'alarm'}) if ($^O !~ /win/i); ## alarm() doesn't work in win32
###################################################
## Read $message from STDIN if -m was not used ##
###################################################
if (!($message)) {
## Read message body from a file specified with -o message-file=
if ($opt{'message-file'}) {
if (! -e $opt{'message-file'}) {
printmsg("ERROR => Message body file specified [$opt{'message-file'}] does not exist!", 0);
printmsg("HINT => 1) check spelling of your file; 2) fully qualify the path; 3) doubble quote it", 1);
quit("", 1);
}
if (! -r $opt{'message-file'}) {
printmsg("ERROR => Message body file specified can not be read due to restricted permissions!", 0);
printmsg("HINT => Check permissions on file specified to ensure it can be read", 1);
quit("", 1);
}
if (!open(MFILE, "< " . $opt{'message-file'})) {
printmsg("ERROR => Error opening message body file [$opt{'message-file'}]: $!", 0);
quit("", 1);
}
while () {
$message .= $_;
}
close(MFILE);
}
## Read message body from STDIN
else {
alarm($conf{'alarm'}) if ($^O !~ /win/i); ## alarm() doesn't work in win32
if ($conf{'stdout'}) {
print "Reading message body from STDIN because the '-m' option was not used.\n";
print "If you are manually typing in a message:\n";
print " - First line must be received within $conf{'alarm'} seconds.\n" if ($^O !~ /win/i);
print " - End manual input with a CTRL-D on its own line.\n\n" if ($^O !~ /win/i);
print " - End manual input with a CTRL-Z on its own line.\n\n" if ($^O =~ /win/i);
}
while () { ## Read STDIN into $message
$message .= $_;
alarm(0) if ($^O !~ /win/i); ## Disable the alarm since at least one line was received
}
printmsg("Message input complete.", 0);
}
}
## Replace bare LF's with CRLF's (\012 should always have \015 with it)
$message =~ s/(\015)?(\012|$)/\015\012/g;
## Replace bare CR's with CRLF's (\015 should always have \012 with it)
$message =~ s/(\015)(\012|$)?/\015\012/g;
## Check message for bare periods and encode them
$message =~ s/(^|$CRLF)(\.{1})($CRLF|$)/$1.$2$3/g;
## Get the current date for the email header
my ($sec,$min,$hour,$mday,$mon,$year,$day) = gmtime();
$year += 1900; $mon = return_month($mon); $day = return_day($day);
my $date = sprintf("%s, %s %s %d %.2d:%.2d:%.2d %s",$day, $mday, $mon, $year, $hour, $min, $sec, $conf{'timezone'});
##################################
## Connect to the SMTP server ##
##################################
printmsg("DEBUG => Connecting to $conf{'server'}:$conf{'port'}", 1);
$SIG{'ALRM'} = sub {
printmsg("ERROR => Timeout while connecting to $conf{'server'}:$conf{'port'} There was no response after $conf{'alarm'} seconds.", 0);
printmsg("HINT => Try specifying a different mail relay with the -s option.", 1);
quit("", 1);
};
alarm($conf{'alarm'}) if ($^O !~ /win/i); ## alarm() doesn't work in win32;
$SERVER = IO::Socket::INET->new( PeerAddr => $conf{'server'},
PeerPort => $conf{'port'},
LocalAddr => $conf{'bindaddr'},
Proto => 'tcp',
Autoflush => 1,
timeout => $conf{'alarm'},
);
alarm(0) if ($^O !~ /win/i); ## alarm() doesn't work in win32;
## Make sure we got connected
if ( (!$SERVER) or (!$SERVER->opened()) ) {
printmsg("ERROR => Connection attempt to $conf{'server'}:$conf{'port'} failed: $@", 0);
printmsg("HINT => Try specifying a different mail relay with the -s option.", 1);
quit("", 1);
}
## Save our IP address for later
$conf{'ip'} = $SERVER->sockhost();
printmsg("DEBUG => My IP address is: $conf{'ip'}", 1);
#########################
## Do the SMTP Dance ##
#########################
## Read initial greeting to make sure we're talking to a live SMTP server
if (SMTPchat()) { quit($conf{'error'}, 1); }
## We're about to use $opt{'fqdn'}, make sure it isn't empty
if (!$opt{'fqdn'}) {
## Ok, that means we couldn't get a hostname, how about using the IP address for the HELO instead
$opt{'fqdn'} = "[" . $conf{'ip'} . "]";
}
## EHLO
if (SMTPchat('EHLO ' . $opt{'fqdn'})) {
printmsg($conf{'error'}, 0);
printmsg("NOTICE => EHLO command failed, attempting HELO instead");
if (SMTPchat('HELO ' . $opt{'fqdn'})) { quit($conf{'error'}, 1); }
if ( $opt{'username'} and $opt{'password'} ) {
printmsg("WARNING => The mail server does not support SMTP authentication!", 0);
}
}
else {
## Determin if the server supports TLS
if ($conf{'SMTPchat_response'} =~ /STARTTLS/) {
$conf{'tls_server'} = 1;
printmsg("DEBUG => The remote SMTP server supports TLS :)", 2);
}
else {
$conf{'tls_server'} = 0;
printmsg("DEBUG => The remote SMTP server does NOT support TLS :(", 2);
}
## Start TLS if possible
if ($conf{'tls_server'} == 1 and $conf{'tls_client'} == 1 and $opt{'tls'} =~ /^(yes|auto)$/) {
printmsg("DEBUG => Starting TLS", 2);
if (SMTPchat('STARTTLS')) { quit($conf{'error'}, 1); }
if (! IO::Socket::SSL->start_SSL($SERVER, SSL_version => 'SSLv3 TLSv1')) {
quit("ERROR => TLS setup failed: " . IO::Socket::SSL::errstr(), 1);
}
printmsg("DEBUG => TLS: Using cipher: ". $SERVER->get_cipher(), 3);
printmsg("DEBUG => TLS session initialized :)", 1);
## Restart our SMTP session
if (SMTPchat('EHLO ' . $opt{'fqdn'})) { quit($conf{'error'}, 1); }
}
elsif ($opt{'tls'} eq 'yes' and $conf{'tls_server'} == 0) {
quit("ERROR => TLS not possible! Remote SMTP server, $conf{'server'}, does not support it.", 1);
}
## Do SMTP Auth if required
if ( $opt{'username'} and $opt{'password'} ) {
if ($conf{'SMTPchat_response'} !~ /AUTH\s/) {
printmsg("NOTICE => Authentication not supported by the remote SMTP server!", 0);
}
else {
my $auth_succeeded = 0;
my $mutual_method = 0;
# ## SASL CRAM-MD5 authentication method
# if ($conf{'SMTPchat_response'} =~ /\bCRAM-MD5\b/i) {
# printmsg("DEBUG => SMTP-AUTH: Using CRAM-MD5 authentication method", 1);
# if (SMTPchat('AUTH CRAM-MD5')) { quit($conf{'error'}, 1); }
#
# ## FIXME!!
#
# printmsg("DEBUG => User authentication was successful", 1);
# }
## SASL LOGIN authentication method
if ($auth_succeeded == 0 and $conf{'SMTPchat_response'} =~ /\bLOGIN\b/i) {
$mutual_method = 1;
printmsg("DEBUG => SMTP-AUTH: Using LOGIN authentication method", 1);
if (!SMTPchat('AUTH LOGIN')) {
if (!SMTPchat(base64_encode($opt{'username'}))) {
if (!SMTPchat(base64_encode($opt{'password'}))) {
$auth_succeeded = 1;
printmsg("DEBUG => User authentication was successful (Method: LOGIN)", 1);
}
}
}
if ($auth_succeeded == 0) {
printmsg("DEBUG => SMTP-AUTH: LOGIN authenticaion failed.", 1);
}
}
## SASL PLAIN authentication method
if ($auth_succeeded == 0 and $conf{'SMTPchat_response'} =~ /\bPLAIN\b/i) {
$mutual_method = 1;
printmsg("DEBUG => SMTP-AUTH: Using PLAIN authentication method", 1);
if (SMTPchat('AUTH PLAIN ' . base64_encode("$opt{'username'}\0$opt{'username'}\0$opt{'password'}"))) {
printmsg("DEBUG => SMTP-AUTH: PLAIN authenticaion failed.", 1);
}
else {
$auth_succeeded = 1;
printmsg("DEBUG => User authentication was successful (Method: PLAIN)", 1);
}
}
## If none of the authentication methods supported by sendEmail were supported by the server, let the user know
if ($mutual_method == 0) {
printmsg("WARNING => SMTP-AUTH: No mutually supported authentication methods available", 0);
}
## If we didn't get authenticated, log an error message and exit
if ($auth_succeeded == 0) {
quit("ERROR => ERROR => SMTP-AUTH: Authentication to $conf{'server'}:$conf{'port'} failed.", 1);
}
}
}
}
## MAIL FROM
if (SMTPchat('MAIL FROM:<' .(returnAddressParts($from))[1]. '>')) { quit($conf{'error'}, 1); }
## RCPT TO
my $oneRcptAccepted = 0;
foreach my $rcpt (@to, @cc, @bcc) {
my ($name, $address) = returnAddressParts($rcpt);
if (SMTPchat('RCPT TO:<' . $address . '>')) {
printmsg("WARNING => The recipient <$address> was rejected by the mail server, error follows:", 0);
$conf{'error'} =~ s/^ERROR/WARNING/o;
printmsg($conf{'error'}, 0);
}
elsif ($oneRcptAccepted == 0) {
$oneRcptAccepted = 1;
}
}
## If no recipients were accepted we need to exit with an error.
if ($oneRcptAccepted == 0) {
quit("ERROR => Exiting. No recipients were accepted for delivery by the mail server.", 1);
}
## DATA
if (SMTPchat('DATA')) { quit($conf{'error'}, 1); }
###############################
## Build and send the body ##
###############################
printmsg("INFO => Sending message body",1);
## If the message-format is raw just send the message as-is.
if ($opt{'message-format'} =~ /^raw$/i) {
print $SERVER $message;
}
## If the message-format isn't raw, then build and send the message,
else {
## Message-ID: (the pointless test below is just to keep scoping correct)
if ($from and $opt{'message-header'} !~ /^From:/iom) {
my ($name, $address) = returnAddressParts($from);
$header .= 'From: "' . $name . '" <' . $address . '>' . $CRLF;
}
## Reply-To:
if ($opt{'reply-to'} and $opt{'message-header'} !~ /^Reply-To:/iom) {
my ($name, $address) = returnAddressParts($opt{'reply-to'});
$header .= 'Reply-To: "' . $name . '" <' . $address . '>' . $CRLF;
}
## To: "Name" ) ) {
printmsg("Setting content-type: text/html", 1);
print $SERVER "Content-Type: text/html;$CRLF";
}
## Otherwise assume it's plain text...
elsif ($opt{'message-content-type'} eq 'text' or $opt{'message-content-type'} eq 'auto') {
printmsg("Setting content-type: text/plain", 1);
print $SERVER "Content-Type: text/plain;$CRLF";
}
## If they've specified their own content-type string...
else {
printmsg("Setting custom content-type: ".$opt{'message-content-type'}, 1);
print $SERVER "Content-Type: ".$opt{'message-content-type'}.";$CRLF";
}
print $SERVER " charset=\"" . $opt{'message-charset'} . "\"$CRLF";
print $SERVER "Content-Transfer-Encoding: 7bit$CRLF";
print $SERVER $CRLF . $message;
## Send Attachemnts
if (scalar(@attachments) > 0) {
## Disable the alarm so people on modems can send big attachments
alarm(0) if ($^O !~ /win/i); ## alarm() doesn't work in win32
## Send the attachments
foreach my $filename (@attachments) {
## This is check 2, we already checked this above, but just in case...
if ( ! -f $filename ) {
printmsg("ERROR => The file [$filename] doesn't exist! Email will be sent, but without that attachment.", 0);
}
elsif ( ! -r $filename ) {
printmsg("ERROR => Couldn't open the file [$filename] for reading: $! Email will be sent, but without that attachment.", 0);
}
else {
printmsg("DEBUG => Sending the attachment [$filename]", 1);
send_attachment($filename);
}
}
}
## End the mime encoded message
print $SERVER "$CRLF--$conf{'delimiter'}--$CRLF";
}
## Tell the server we are done sending the email
print $SERVER "$CRLF.$CRLF";
if (SMTPchat()) { quit($conf{'error'}, 1); }
####################
# We are done!!! #
####################
## Disconnect from the server (don't SMTPchat(), it breaks when using TLS)
print $SERVER "QUIT$CRLF";
close $SERVER;
#######################################
## Generate exit message/log entry ##
#######################################
if ($conf{'debug'} or $conf{'logging'}) {
printmsg("Generating a detailed exit message", 3);
## Put the message together
my $output = "Email was sent successfully! From: <" . (returnAddressParts($from))[1] . "> ";
if (scalar(@to) > 0) {
$output .= "To: ";
for ($a = 0; $a < scalar(@to); $a++) {
$output .= "<" . (returnAddressParts($to[$a]))[1] . "> ";
}
}
if (scalar(@cc) > 0) {
$output .= "Cc: ";
for ($a = 0; $a < scalar(@cc); $a++) {
$output .= "<" . (returnAddressParts($cc[$a]))[1] . "> ";
}
}
if (scalar(@bcc) > 0) {
$output .= "Bcc: ";
for ($a = 0; $a < scalar(@bcc); $a++) {
$output .= "<" . (returnAddressParts($bcc[$a]))[1] . "> ";
}
}
$output .= "Subject: [$subject] " if ($subject);
if (scalar(@attachments_names) > 0) {
$output .= "Attachment(s): ";
foreach(@attachments_names) {
$output .= "[$_] ";
}
}
$output .= "Server: [$conf{'server'}:$conf{'port'}]";
######################
# Exit the program #
######################
## Print / Log the detailed message
quit($output, 0);
}
else {
## Or the standard message
quit("Email was sent successfully!", 0);
} 使用方式
[root@gitlab bin]# sendemail
sendemail-1.56 by Brandon Zehm
Synopsis: sendemail -f ADDRESS [options]
Required:
-f ADDRESS from (sender) email address
* At least one recipient required via -t, -cc, or -bcc
* Message body required via -m, STDIN, or -o message-file=FILE
Common:
-t ADDRESS [ADDR ...] to email address(es)
-u SUBJECT message subject
-m MESSAGE message body
-s SERVER[:PORT] smtp mail relay, default is localhost:25
Optional:
-a FILE [FILE ...] file attachment(s)
-cc ADDRESS [ADDR ...] cc email address(es)
-bcc ADDRESS [ADDR ...] bcc email address(es)
-xu USERNAME username for SMTP authentication
-xp PASSWORD password for SMTP authentication
Paranormal:
-b BINDADDR[:PORT] local host bind address
-l LOGFILE log to the specified file
-v verbosity, use multiple times for greater effect
-q be quiet (i.e. no STDOUT output)
-o NAME=VALUE advanced options, for details try: --help misc
-o message-content-type=
-o message-file=FILE -o message-format=raw
-o message-header=HEADER -o message-charset=CHARSET
-o reply-to=ADDRESS -o timeout=SECONDS
-o username=USERNAME -o password=PASSWORD
-o tls= -o fqdn=FQDN
Help:
--help the helpful overview you're reading now
--help addressing explain addressing and related options
--help message explain message body input and related options
--help networking explain -s, -b, etc
--help output explain logging and other output options
--help misc explain -o options, TLS, SMTP auth, and more
常用命令
- 不带附件的
/usr/local/bin/sendEmail -f 123@163.com -t 123@139.com -s smtp.163.com -u "send by 123" -xu 123 -xp ****** -m "邮件发送成功，good"- 带着附件的
/usr/local/bin/sendEmail -f 123@163.com -t 123@139.com -s smtp.163.com -u "send by 123" -xu 123 -xp ****** -m "邮件发送成功，good" -a xx.file备注：
如果需要utf-8，需要加上参数
-o message-charset=utf-8