Commit acfce19d authored by Jiri Hruska's avatar Jiri Hruska Committed by Steve Holme
Browse files

imap: Updated ftpserver.pl to be more compliant, added new commands

Enriched IMAP capabilities of ftpserver.pl in order to be able to
add tests for the new IMAP features.

* Added support for APPEND - Saves uploaded data to log/upload.$testno
* Added support for LIST - Returns the contents of <reply/> section in
  the current test, like e.g FETCH.
* Added support for STORE - Returns hardcoded updated flags
* Changed handling of SELECT - Returns much more information in the
  usual set of untagged responses; uses hardcoded data from an example
  in the IMAP RFC
* Changed handling of FETCH - Fixed response format
parent b7f39156
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+130 −9
Original line number Diff line number Diff line
@@ -579,13 +579,15 @@ sub protocolsetup {
    }
    elsif($proto eq 'imap') {
        %commandfunc = (
            'APPEND' => \&APPEND_imap,
            'CAPABILITY' => \&CAPABILITY_imap,
            'FETCH'  => \&FETCH_imap,
            'LIST'   => \&LIST_imap,
            'SELECT' => \&SELECT_imap,
            'STORE'  => \&STORE_imap
        );
        %displaytext = (
            'LOGIN'  => ' OK We are happy you popped in!',
            'SELECT' => ' OK selection done',
            'LOGOUT' => ' OK thanks for the fish',
        );
        @welcome = (
@@ -783,26 +785,33 @@ sub CAPABILITY_imap {

sub SELECT_imap {
    my ($testno) = @_;
    my @data;
    my $size;

    logmsg "SELECT_imap got test $testno\n";

    # Example from RFC 3501, 6.3.1. SELECT Command
    sendcontrol "* 172 EXISTS\r\n";
    sendcontrol "* 1 RECENT\r\n";
    sendcontrol "* OK [UNSEEN 12] Message 12 is first unseen\r\n";
    sendcontrol "* OK [UIDVALIDITY 3857529045] UIDs valid\r\n";
    sendcontrol "* OK [UIDNEXT 4392] Predicted next UID\r\n";
    sendcontrol "* FLAGS (\\Answered \\Flagged \\Deleted \\Seen \\Draft)\r\n";
    sendcontrol "* OK [PERMANENTFLAGS (\\Deleted \\Seen \\*)] Limited\r\n";
    sendcontrol "$cmdid OK [READ-WRITE] SELECT completed\r\n";

    $selected = $testno;

    return 0;
}

sub FETCH_imap {
     my ($testno) = @_;
     my ($args) = @_;
     my ($uid, $how) = split(/ /, $args, 2);
     my @data;
     my $size;

     logmsg "FETCH_imap got test $testno\n";

     $testno = $selected;
     logmsg "FETCH_imap got $args\n";

     if($testno =~ /^verifiedserver$/) {
     if($selected =~ /^verifiedserver$/) {
         # this is the secret command that verifies that this actually is
         # the curl test server
         my $response = "WE ROOLZ: $$\r\n";
@@ -815,6 +824,7 @@ sub FETCH_imap {
     else {
         logmsg "retrieve a mail\n";

         my $testno = $selected;
         $testno =~ s/^([^0-9]*)//;
         my $testpart = "";
         if ($testno > 10000) {
@@ -832,17 +842,128 @@ sub FETCH_imap {
         $size += length($_);
     }

     sendcontrol "* FETCH starts {$size}\r\n";
     sendcontrol "* $uid FETCH ($how {$size}\r\n";

     for my $d (@data) {
         sendcontrol $d;
     }

     sendcontrol ")\r\n";
     sendcontrol "$cmdid OK FETCH completed\r\n";

     return 0;
}

sub APPEND_imap {
    my ($args) = @_;

    logmsg "APPEND_imap got $args\r\n";

    $args =~ /^([^ ]+) [^{]*\{(\d+)\}$/;
    my ($folder, $size) = ($1, $2);

    sendcontrol "+ Ready for literal data\r\n";

    my $testno = $folder;
    my $filename = "log/upload.$testno";

    logmsg "Store test number $testno in $filename\n";

    open(FILE, ">$filename") ||
        return 0; # failed to open output

    my $received = 0;
    my $line;
    while(5 == (sysread \*SFREAD, $line, 5)) {
        if($line eq "DATA\n") {
            sysread \*SFREAD, $line, 5;

            my $chunksize = 0;
            if($line =~ /^([0-9a-fA-F]{4})\n/) {
                $chunksize = hex($1);
            }

            read_mainsockf(\$line, $chunksize);

            my $left = $size - $received;
            my $datasize = ($left > $chunksize) ? $chunksize : $left;

            if($datasize > 0) {
              logmsg "> Appending $datasize bytes to file\n";
              print FILE substr($line, 0, $datasize) if(!$nosave);
              $line = substr($line, $datasize);

              $received += $datasize;
              if($received == $size) {
                logmsg "Received all data, waiting for final CRLF.\n";
              }
            }

            if($received == $size && $line eq "\r\n") {
              last;
            }
        }
        elsif($line eq "DISC\n") {
            logmsg "Unexpected disconnect!\n";
            last;
        }
        else {
            logmsg "No support for: $line";
            last;
        }
    }

    if($nosave) {
        print FILE "$size bytes would've been stored here\n";
    }
    close(FILE);

    logmsg "received $size bytes upload\n";

    sendcontrol "$cmdid OK APPEND completed\r\n";

    return 0;
}

sub STORE_imap {
    my ($args) = @_;
    my ($uid, $what) = split(/ /, $args, 2);

    logmsg "STORE_imap got $args\n";

    sendcontrol "* $uid FETCH (FLAGS (\\Seen \\Deleted))\r\n";
    sendcontrol "$cmdid OK STORE completed\r\n";

    return 0;
}

sub LIST_imap {
    my ($args) = @_;
    my ($reference, $mailbox) = split(/ /, $args, 2);

    logmsg "LIST_imap got $args\n";

    my $testno = $reference;
    $testno =~ s/^([^0-9]*)//;
    my $testpart = "";
    if ($testno > 10000) {
        $testpart = $testno % 10000;
        $testno = int($testno / 10000);
    }
    
    loadtest("$srcdir/data/test$testno");

    my @data = getpart("reply", "data$testpart");

    for my $d (@data) {
        sendcontrol $d;
    }

    sendcontrol "$cmdid OK LIST Completed\r\n";

    return 0;
}

################
################ POP3 commands
################