<?php

/*
 * (c) Copyright 2002 by Wim Moreau <wim.moreau@esat.kuleuven.ac.be>
 *
 * see 'globals.php3' for details
 */ 

#
# script for submitting/revising a camera ready copy
#        and showing the relevant form
#    

require "globals.php3";
require "utils.php3";


check_stopped_or_expired_cameraready("cameraready.php3");

 
if ( $action == "submit" ) {

    $paperfile_name = trim($paperfile_name);
    if (preg_match("/.*\/$/", $paperfile_name, $matches)) {
        print_esub_header("Camera ready submission failed");
        print "You submitted a directory name. Please try again with a full path filename.<BR>";
        print_esub_footer("revise.php3");
        return;
    }

    $uid              = trim(str_replace("\n", " ", $uid));
    $title            = trim(str_replace("\n", " ", strtolower($title)));
    $authors          = trim(str_replace("\n", " ", strtolower($authors)));
    $contact          = trim(str_replace("\n", " ", strtolower($contact)));
    $paperfile        = trim(str_replace("\n", " ", $paperfile));
    if ($USE_AFFILIATIONS) {
        $affiliations = trim(str_replace("\n", " ", $affiliations));
    }
    if ($USE_CATEGORIES) {
        $category = trim(str_replace("\n", " ", $category));
    }
    if ($USE_ABSTRACTS) {
        $abstract     = trim($abstract);
    }

    if (!strcmp($uid,"")) {
        ### uniqueID not specified: try again
        print_esub_header("Revision failed");
        print "A Unique ID is needed to submit a cameraready version.<BR>";
        print "Please try again.<BR>";
        print_esub_footer("cameraready.php3");    
        return;

    } else {
        ### revision

        list($exist, $location) = find_uid($uid);
        if (!$exist) {
            ### send warning mail to CONTACT
            mail($CONTACT_EMAIL,
            "$CONFERENCE_SHORT: UNSUCCESSFUL camera ready version submission for Paper-Id $uid", 
            "UNSUCCESSFUL camera ready version submission for Paper-Id $uid",
            "From: $CONFERENCE_EMAIL\nReply-To: $CONFERENCE_EMAIL\nX-Mailer: PHP/" . phpversion());

            print_esub_header("Camera ready submission failed");

            print "There is no paper corresponding to the Unique ID \"" . $uid . "\"<BR>";
            print "Please check the Unique ID and try again.<BR>";
            print_esub_footer("cameraready.php3");
            return;
        }

        ### Get optional fields
        $connection = db_connect();
        $query      = "SELECT title, contact, authors, affiliations, abstract, category, status, final_location, receipt, paper_id FROM $DB_TABLE WHERE uid='$uid'";
        $result     = mysql_db_query($DB, $query, $connection) 
            or my_error_handler($query);
        $row = mysql_fetch_row($result);
        if ($title    == "") { $title   = stripslashes($row[0]); }

        if ($contact  == "") { 
            $contact = stripslashes($row[1]);
            $is_new_contact = 0;
        } else {
            $is_new_contact = strcmp($contact, $row[1]);
        }
        $old_contact = $row[1];
             
        if ($authors  == "") { $authors = stripslashes($row[2]); }

        if ($USE_AFFILIATIONS && ($affiliations == "")) {
            $affiliations = stripslashes($row[3]);
        }

        if ($USE_ABSTRACTS && ($abstract == "")) {
            $abstract = stripslashes($row[4]);
        }
        
        if ($USE_CATEGORIES && ($category == "")) {
            $category = stripslashes($row[5]);
        }

        $status         = stripslashes($row[6]);
        $final_filename = stripslashes($row[7]);  # used to re-enter when no file uploaded
        $receipt        = stripslashes($row[8]);  # idem
        $paper_id       = stripslashes($row[9]);


        if ($status != 'Accepted') { 
            ### send warning mail to CONTACT
            mail($CONTACT_EMAIL,
            "$CONFERENCE_SHORT: ATTEMPTED camera ready version submission for Paper-Id $uid", 
            "ATTEMPTED camera ready version submission for Paper-Id $uid\n\nThe status of the paper is $status",
            "From: $CONFERENCE_EMAIL\nReply-To: $CONFERENCE_EMAIL\nX-Mailer: PHP/" . phpversion());

            print_esub_header("Camera ready submission failed");

            print "Your paper has not been accepted.<BR>";
            print "If this is an error, please contact <A HREF=mailto:$CONTACT_EMAIL>$CONTACT</A><BR>";
            print_esub_footer("cameraready.php3");
            return;
        }

        ### If user submitted a revision file, remove the old file and put the new one there.
        ### Otherwise, do nothing to the file.
        if ($paperfile_name != "") {

            ### tell them to try again if they typed in a wrong filename 
            if (!file_exists($paperfile)) {
                print_esub_header("Camera ready submission failed");

                print "You have submitted a non-existent file. Please check that ";
                print "your filename is correct and try again\n";
                print_esub_footer("cameraready.php3");
                return;
            }

            if ($final_filename != "" &&
                file_exists($SUBMISSIONS_DIR . "/final/" . $final_filename)) {
                if ($KEEP_REVISIONS) { 
                    rename($SUBMISSIONS_DIR . "/final/" . $final_filename,
                           $SUBMISSIONS_DIR . "/finalrevisions/" . $final_filename);
                } else {
                    unlink($SUBMISSIONS_DIR . "/final/" . $final_filename);
                }
            # else : first submission of camera ready version: nothing to do
            }

            $filename = $paper_id . "_" . $paperfile_name;
            $cameraready_location = $SUBMISSIONS_DIR . "/final/" . $filename ; 

            if (file_exists($cameraready_location)) {
                unlink($cameraready_location);
            }

            copy($paperfile, $cameraready_location);
            chmod($cameraready_location, 0755);
            $receipt = generate_receipt($cameraready_location);
        } else {
            # when not submitting a new paper, make sure al the old fields
            # regarding the previously uploaded file (if any) are preserved
            $filename = $final_filename;
            $cameraready_location = $SUBMISSIONS_DIR . "/final/" . $filename ;            
        }

        store_revision($uid, $title, $authors, $contact, $receipt, $category, $abstract, $affiliations, $filename);

        if (has_administrator_access($script_name)) {    
            $submission_info = ascii_format_submission_info($title, $contact, $authors, $affiliations, $category, $abstract, $uid, $receipt, $filename);
            send_cameraready_notice($CONFERENCE_EMAIL, $title, $submission_info . "\n\nChanges made by $PHP_AUTH_USER.\nMail NOT sent to " . $contact);
        } else {
            $submission_info = ascii_format_submission_info($title, $contact, $authors, $affiliations, $category, $abstract, $uid, $receipt, $paperfile_name);
            send_cameraready_receipt($contact, $title, $submission_info);

            $submission_info = ascii_format_submission_info($title, $contact, $authors, $affiliations, $category, $abstract, $uid, $receipt, $filename);
            send_cameraready_notice($CONFERENCE_EMAIL, $title, $submission_info);

            ### If the contact person is changed, also notify the previous contact person.
              # This protects against people sabotaging work of others and getting away with it.
            if ($is_new_contact) {
                 send_cameraready_receipt($old_contact, $title, $submission_info);
            }
        }

        $message = html_format_submission_info($title, $contact, $authors, $affiliations, $category, $abstract, $uid, $receipt, $paperfile_name);

        print_esub_header("Revision received");
        print "Your revision has been successfully received. Here's the information being sent to you via email.<P>";
        print $message;
        print "<BR>We received your cameraready submission.<BR>\n";

        print "<P>If you don't receive an email with this information from us in a ";
        print "reasonable amount of time, you may have mistyped the contact email address. ";
        print "Please <a href=\"mailto:$CONFERENCE_EMAIL\">let us know</a>.";

        if (has_administrator_access($script_name)) {
            print "<BR><BR>Mail <B>NOT</B> sent to the contact person.";
        }

        print_esub_footer("cameraready.php3");
    }
} else {

    print_esub_header("Camera ready version");
    $html = <<<EOT

<P>To submit the camera ready version of your paper, please fill out the
following form. The Unique ID and the filename to be uploaded are
required. Please send email to 
<A HREF="mailto:$CONFERENCE_EMAIL">$CONFERENCE_EMAIL</A>
if you have any problems. 

<P><FORM ENCTYPE="multipart/form-data" ACTION="cameraready.php3?action=submit" METHOD=POST>
<INPUT TYPE=hidden NAME="MAX_FILE_SIZE" VALUE=$MAX_FILE_SIZE>

<P><B>Unique ID:</B> (As returned by email to the contact author after
your original submit request)<BR>
<INPUT TYPE=text NAME=uid SIZE=40 MAXLENGTH=$MAX_INPUT_LENGTH>

<P><B>Title of your submission:</B> (leave blank if unchanged)<BR>
<INPUT TYPE=text NAME=title SIZE=70 MAXLENGTH=$MAX_INPUT_LENGTH>

<P><B>Email Address of one Contact Author:</B> (leave blank if unchanged)<BR>
<INPUT TYPE=text NAME=contact SIZE=40 MAXLENGTH=$MAX_INPUT_LENGTH>

<P><B>Authors:</B> (leave blank if unchanged)<BR>
<INPUT TYPE=text NAME=authors SIZE=70 MAXLENGTH=$MAX_INPUT_LENGTH>

EOT;

if ($USE_AFFILIATIONS) {
    $html .= <<<EOT
<P><B>Affiliations:</B> (leave blank if unchanged)<BR>
<INPUT TYPE=text NAME=affiliations SIZE=70 MAXLENGTH=$MAX_INPUT_LENGTH>

EOT;
}

if ($USE_CATEGORIES) {
    $html .= <<<EOT
<P><B>Category:</B> (don't mark if unchanged)<BR>

EOT;
    $html .= categories_form("");
}

if ($USE_ABSTRACTS) {
    $html .= <<<EOT

<P><B>Abstract:</B> (leave blank if unchanged)<BR>
<TEXTAREA NAME=abstract ROWS=10 COLS=70>
</TEXTAREA>

EOT;
}

$html .= <<<EOT

<P><B>File of your submission:</B> (leave blank if unchanged)<BR>
<INPUT TYPE=file NAME=paperfile SIZE=60 MAXLENGTH=80><BR>
This field needs the full pathname of your camera ready tar.gz of zip file on the local
machine from which you are submitting. You can either type it in, or
use the browse capability to pull it up. 

<P><B>
<INPUT TYPE=submit VALUE="Send"><FONT COLOR=$ACCENT_COLOR>Click this to
submit your camera ready version/revision!</B></B>

</FORM>

A confirmation of receipt will be sent to the contact author
mail.

<P><B>Some tips:</B>

<P>The displayed box size does not limit the amount of text you can type; if
you have a long title or lots of authors, just keep typing. But there is a
maximum of $MAX_INPUT_LENGTH characters.

<P>Make sure you input a postscript file in the corresponding field. If
you provide, for example, a directory name rather than a file name,
your browser may simply go into a loop and not send anything to our
server.
EOT;

    echo "$html";
    print_esub_footer("cameraready.php3");
}


?>