added on local at 2026-07-01 16:01:37
| 1 | #!/usr/bin/perl | |
| 2 | #====================================================================== | |
| 3 | # ABForge - Reset password (token redemption) | |
| 4 | # | |
| 5 | # GET ?t=TOKEN : verify the token is valid + unexpired + unused; | |
| 6 | # show the new-password form | |
| 7 | # POST : verify the token AGAIN (defense against TOCTOU); | |
| 8 | # update users.password_hash; mark password_resets.used_at; | |
| 9 | # revoke all existing sessions; redirect to /login.cgi | |
| 10 | # with a "password updated, please sign in" flash | |
| 11 | #====================================================================== | |
| 12 | use strict; | |
| 13 | use warnings; | |
| 14 | ||
| 15 | use lib '/var/www/vhosts/abforge.com/httpdocs'; | |
| 16 | use CGI; | |
| 17 | use MODS::Template; | |
| 18 | use MODS::DBConnect; | |
| 19 | use MODS::Login; | |
| 20 | use MODS::ABForge::Config; | |
| 21 | use MODS::ABForge::Wrapper; | |
| 22 | ||
| 23 | my $q = CGI->new; | |
| 24 | my $form = $q->Vars; | |
| 25 | my $auth = MODS::Login->new; | |
| 26 | my $wrap = MODS::ABForge::Wrapper->new; | |
| 27 | my $tfile = MODS::Template->new; | |
| 28 | my $db = MODS::DBConnect->new; | |
| 29 | my $cfg = MODS::ABForge::Config->new; | |
| 30 | my $DB = $cfg->settings('database_name'); | |
| 31 | ||
| 32 | $|=1; | |
| 33 | ||
| 34 | my $token = defined $form->{t} ? $form->{t} : ''; | |
| 35 | $token =~ s/[^a-f0-9]//gi; | |
| 36 | $token = substr($token, 0, 64); | |
| 37 | ||
| 38 | my $method = uc($ENV{REQUEST_METHOD} || 'GET'); | |
| 39 | ||
| 40 | my $error_msg = ''; | |
| 41 | my $token_ok = 0; | |
| 42 | my $row; | |
| 43 | ||
| 44 | my $dbh = $db->db_connect(); | |
| 45 | ||
| 46 | # Pre-migration guard. | |
| 47 | my $tab = $db->db_readwrite($dbh, qq~ | |
| 48 | SELECT COUNT(*) AS n FROM information_schema.tables | |
| 49 | WHERE table_schema='$DB' AND table_name='password_resets' | |
| 50 | ~, $ENV{SCRIPT_NAME}, __LINE__); | |
| 51 | ||
| 52 | if (!$tab || !$tab->{n}) { | |
| 53 | $db->db_disconnect($dbh); | |
| 54 | _render_error('Password reset is not enabled on this install yet. Please contact support.'); | |
| 55 | exit; | |
| 56 | } | |
| 57 | ||
| 58 | if (length($token) == 64) { | |
| 59 | $row = $db->db_readwrite($dbh, qq~ | |
| 60 | SELECT id, user_id, expires_at, used_at | |
| 61 | FROM `${DB}`.password_resets | |
| 62 | WHERE token='$token' | |
| 63 | LIMIT 1 | |
| 64 | ~, $ENV{SCRIPT_NAME}, __LINE__); | |
| 65 | ||
| 66 | if ($row && $row->{id}) { | |
| 67 | if ($row->{used_at}) { | |
| 68 | $error_msg = 'This reset link has already been used. Request a new one from the forgot-password page.'; | |
| 69 | } else { | |
| 70 | # Compare expires_at against NOW(). DB-side check avoids | |
| 71 | # any local clock drift between web + DB hosts. | |
| 72 | my $exp_check = $db->db_readwrite($dbh, qq~ | |
| 73 | SELECT (expires_at >= NOW()) AS still_valid | |
| 74 | FROM `${DB}`.password_resets WHERE id='$row->{id}' | |
| 75 | ~, $ENV{SCRIPT_NAME}, __LINE__); | |
| 76 | if ($exp_check && $exp_check->{still_valid}) { | |
| 77 | $token_ok = 1; | |
| 78 | } else { | |
| 79 | $error_msg = 'This reset link has expired. Request a new one from the forgot-password page.'; | |
| 80 | } | |
| 81 | } | |
| 82 | } else { | |
| 83 | $error_msg = 'That reset link is not valid. Request a new one from the forgot-password page.'; | |
| 84 | } | |
| 85 | } else { | |
| 86 | $error_msg = 'Missing or malformed reset token.'; | |
| 87 | } | |
| 88 | ||
| 89 | # ---- POST: actually rotate the password ---- | |
| 90 | if ($method eq 'POST' && $token_ok) { | |
| 91 | my $pw1 = defined $form->{password} ? $form->{password} : ''; | |
| 92 | my $pw2 = defined $form->{password_confirm} ? $form->{password_confirm} : ''; | |
| 93 | ||
| 94 | if (length($pw1) < 8) { | |
| 95 | $error_msg = 'Password must be at least 8 characters.'; | |
| 96 | } elsif ($pw1 ne $pw2) { | |
| 97 | $error_msg = 'The two passwords do not match.'; | |
| 98 | } else { | |
| 99 | # Mark the token consumed BEFORE rotating the password. If the | |
| 100 | # password update somehow fails (FK / DB hiccup), the token is | |
| 101 | # still burned and can't be retried -- safer to force a new | |
| 102 | # reset request than to allow a replay. | |
| 103 | $db->db_readwrite($dbh, qq~ | |
| 104 | UPDATE `${DB}`.password_resets | |
| 105 | SET used_at=NOW() | |
| 106 | WHERE id='$row->{id}' AND used_at IS NULL | |
| 107 | ~, $ENV{SCRIPT_NAME}, __LINE__); | |
| 108 | ||
| 109 | my $ok = $auth->update_password($row->{user_id}, $pw1); | |
| 110 | $db->db_disconnect($dbh); | |
| 111 | if ($ok) { | |
| 112 | print "Status: 302 Found\nLocation: /login.cgi?reset=ok\n\n"; | |
| 113 | exit; | |
| 114 | } | |
| 115 | _render_error('We could not save the new password. Try requesting another reset link, and contact support if it keeps failing.'); | |
| 116 | exit; | |
| 117 | } | |
| 118 | } | |
| 119 | ||
| 120 | $db->db_disconnect($dbh); | |
| 121 | ||
| 122 | print "Content-Type: text/html; charset=utf-8\nCache-Control: no-cache, no-store\n\n"; | |
| 123 | ||
| 124 | my $tvars = { | |
| 125 | token_ok => $token_ok, | |
| 126 | token => $token_ok ? $token : '', | |
| 127 | error_msg => $error_msg, | |
| 128 | has_error => length $error_msg ? 1 : 0, | |
| 129 | }; | |
| 130 | ||
| 131 | my $body = join('', $tfile->template('abforge_reset_password.html', $tvars, undef)); | |
| 132 | ||
| 133 | $wrap->render({ | |
| 134 | userinfo => undef, | |
| 135 | title => 'Reset password', | |
| 136 | body => $body, | |
| 137 | }); | |
| 138 | ||
| 139 | sub _render_error { | |
| 140 | my ($msg) = @_; | |
| 141 | print "Content-Type: text/html; charset=utf-8\nCache-Control: no-cache\n\n"; | |
| 142 | my $tvars = { | |
| 143 | token_ok => 0, | |
| 144 | token => '', | |
| 145 | error_msg => $msg, | |
| 146 | has_error => 1, | |
| 147 | }; | |
| 148 | my $body = join('', $tfile->template('abforge_reset_password.html', $tvars, undef)); | |
| 149 | $wrap->render({ | |
| 150 | userinfo => undef, | |
| 151 | title => 'Reset password', | |
| 152 | body => $body, | |
| 153 | }); | |
| 154 | } |