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267 lines
9.0 KiB
Perl
267 lines
9.0 KiB
Perl
# -*- Mode: perl; indent-tabs-mode: nil -*-
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#
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# The contents of this file are subject to the Mozilla Public
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# License Version 1.1 (the "License"); you may not use this file
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# except in compliance with the License. You may obtain a copy of
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# the License at http://www.mozilla.org/MPL/
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#
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# Software distributed under the License is distributed on an "AS
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# IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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# implied. See the License for the specific language governing
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# rights and limitations under the License.
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#
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# The Original Code is the Bugzilla Bug Tracking System.
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#
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# The Initial Developer of the Original Code is Netscape Communications
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# Corporation. Portions created by Netscape are
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# Copyright (C) 1998 Netscape Communications Corporation. All
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# Rights Reserved.
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#
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# Contributor(s): Myk Melez <myk@mozilla.org>
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################################################################################
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# Module Initialization
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################################################################################
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# Make it harder for us to do dangerous things in Perl.
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use diagnostics;
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use strict;
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# Bundle the functions in this file together into the "Token" package.
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package Token;
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# This module requires that its caller have said "require CGI.pl" to import
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# relevant functions from that script and its companion globals.pl.
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################################################################################
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# Functions
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################################################################################
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sub IssueEmailChangeToken {
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my ($userid, $old_email, $new_email) = @_;
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# Generate a unique token and insert it into the tokens table.
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# We have to lock the tokens table before generating the token,
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# since the database must be queried for token uniqueness.
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&::SendSQL("LOCK TABLES tokens WRITE");
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my $token = GenerateUniqueToken();
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my $quotedtoken = &::SqlQuote($token);
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my $quoted_emails = &::SqlQuote($old_email . ":" . $new_email);
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&::SendSQL("INSERT INTO tokens ( userid , issuedate , token ,
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tokentype , eventdata )
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VALUES ( $userid , NOW() , $quotedtoken ,
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'emailold' , $quoted_emails )");
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my $newtoken = GenerateUniqueToken();
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$quotedtoken = &::SqlQuote($newtoken);
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&::SendSQL("INSERT INTO tokens ( userid , issuedate , token ,
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tokentype , eventdata )
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VALUES ( $userid , NOW() , $quotedtoken ,
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'emailnew' , $quoted_emails )");
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&::SendSQL("UNLOCK TABLES");
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# Mail the user the token along with instructions for using it.
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my $template = $::template;
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my $vars = $::vars;
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$vars->{'oldemailaddress'} = $old_email . &::Param('emailsuffix');
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$vars->{'newemailaddress'} = $new_email . &::Param('emailsuffix');
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$vars->{'token'} = &::url_quote($token);
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$vars->{'emailaddress'} = $old_email . &::Param('emailsuffix');
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my $message;
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$template->process("token/emailchangeold.txt.tmpl", $vars, \$message)
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|| &::DisplayError("Template process failed: " . $template->error())
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&& exit;
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open SENDMAIL, "|/usr/lib/sendmail -t -i";
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print SENDMAIL $message;
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close SENDMAIL;
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$vars->{'token'} = &::url_quote($newtoken);
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$vars->{'emailaddress'} = $new_email . &::Param('emailsuffix');
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$message = "";
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$template->process("token/emailchangenew.txt.tmpl", $vars, \$message)
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|| &::DisplayError("Template process failed: " . $template->error())
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&& exit;
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open SENDMAIL, "|/usr/lib/sendmail -t -i";
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print SENDMAIL $message;
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close SENDMAIL;
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}
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sub IssuePasswordToken {
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# Generates a random token, adds it to the tokens table, and sends it
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# to the user with instructions for using it to change their password.
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my ($loginname) = @_;
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# Retrieve the user's ID from the database.
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my $quotedloginname = &::SqlQuote($loginname);
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&::SendSQL("SELECT userid FROM profiles WHERE login_name = $quotedloginname");
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my ($userid) = &::FetchSQLData();
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# Generate a unique token and insert it into the tokens table.
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# We have to lock the tokens table before generating the token,
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# since the database must be queried for token uniqueness.
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&::SendSQL("LOCK TABLES tokens WRITE");
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my $token = GenerateUniqueToken();
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my $quotedtoken = &::SqlQuote($token);
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my $quotedipaddr = &::SqlQuote($::ENV{'REMOTE_ADDR'});
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&::SendSQL("INSERT INTO tokens ( userid , issuedate , token , tokentype , eventdata )
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VALUES ( $userid , NOW() , $quotedtoken , 'password' , $quotedipaddr )");
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&::SendSQL("UNLOCK TABLES");
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# Mail the user the token along with instructions for using it.
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MailPasswordToken($loginname, $token);
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}
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sub CleanTokenTable {
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&::SendSQL("LOCK TABLES tokens WRITE");
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&::SendSQL("DELETE FROM tokens
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WHERE TO_DAYS(NOW()) - TO_DAYS(issuedate) >= 3");
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&::SendSQL("UNLOCK TABLES");
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}
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sub GenerateUniqueToken {
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# Generates a unique random token. Uses &GenerateRandomPassword
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# for the tokens themselves and checks uniqueness by searching for
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# the token in the "tokens" table. Gives up if it can't come up
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# with a token after about one hundred tries.
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my $token;
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my $duplicate = 1;
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my $tries = 0;
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while ($duplicate) {
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++$tries;
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if ($tries > 100) {
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&::DisplayError("Something is seriously wrong with the token generation system.");
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exit;
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}
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$token = &::GenerateRandomPassword();
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&::SendSQL("SELECT userid FROM tokens WHERE token = " . &::SqlQuote($token));
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$duplicate = &::FetchSQLData();
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}
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return $token;
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}
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sub MailPasswordToken {
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# Emails a password token to a user along with instructions for its use.
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# Called exclusively from &IssuePasswordToken.
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my ($emailaddress, $token) = @_;
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my $urlbase = &::Param("urlbase");
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my $emailsuffix = &::Param('emailsuffix');
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$token = &::url_quote($token);
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open SENDMAIL, "|/usr/lib/sendmail -t -i";
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print SENDMAIL qq|From: bugzilla-daemon
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To: $emailaddress$emailsuffix
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Subject: Bugzilla Change Password Request
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You or someone impersonating you has requested to change your Bugzilla
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password. To change your password, visit the following link:
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${urlbase}token.cgi?a=cfmpw&t=$token
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If you are not the person who made this request, or you wish to cancel
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this request, visit the following link:
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${urlbase}token.cgi?a=cxlpw&t=$token
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|;
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close SENDMAIL;
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}
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sub Cancel {
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# Cancels a previously issued token and notifies the system administrator.
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# This should only happen when the user accidentally makes a token request
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# or when a malicious hacker makes a token request on behalf of a user.
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my ($token, $cancelaction) = @_;
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# Quote the token for inclusion in SQL statements.
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my $quotedtoken = &::SqlQuote($token);
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# Get information about the token being cancelled.
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&::SendSQL("SELECT issuedate , tokentype , eventdata , login_name , realname
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FROM tokens, profiles
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WHERE tokens.userid = profiles.userid
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AND token = $quotedtoken");
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my ($issuedate, $tokentype, $eventdata, $loginname, $realname) = &::FetchSQLData();
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# Get the email address of the Bugzilla maintainer.
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my $maintainer = &::Param('maintainer');
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# Format the user's real name and email address into a single string.
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my $username = $realname ? $realname . " <" . $loginname . ">" : $loginname;
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my $template = $::template;
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my $vars = $::vars;
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$vars->{'emailaddress'} = $username;
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$vars->{'maintainer'} = $maintainer;
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$vars->{'remoteaddress'} = $::ENV{'REMOTE_ADDR'};
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$vars->{'token'} = &::url_quote($token);
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$vars->{'tokentype'} = $tokentype;
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$vars->{'issuedate'} = $issuedate;
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$vars->{'eventdata'} = $eventdata;
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$vars->{'cancelaction'} = $cancelaction;
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# Notify the user via email about the cancellation.
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my $message;
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$template->process("token/tokencancel.txt.tmpl", $vars, \$message)
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|| &::DisplayError("Template process failed: " . $template->error())
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&& exit;
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open SENDMAIL, "|/usr/lib/sendmail -t -i";
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print SENDMAIL $message;
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close SENDMAIL;
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# Delete the token from the database.
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&::SendSQL("LOCK TABLES tokens WRITE");
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&::SendSQL("DELETE FROM tokens WHERE token = $quotedtoken");
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&::SendSQL("UNLOCK TABLES");
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}
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sub HasPasswordToken {
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# Returns a password token if the user has one.
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my ($userid) = @_;
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&::SendSQL("SELECT token FROM tokens
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WHERE userid = $userid AND tokentype = 'password' LIMIT 1");
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my ($token) = &::FetchSQLData();
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return $token;
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}
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sub HasEmailChangeToken {
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# Returns an email change token if the user has one.
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my ($userid) = @_;
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&::SendSQL("SELECT token FROM tokens
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WHERE userid = $userid
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AND tokentype = 'emailnew'
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OR tokentype = 'emailold' LIMIT 1");
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my ($token) = &::FetchSQLData();
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return $token;
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}
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1;
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