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securimage support as an alternative captcha

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This commit is contained in:
Shish 2010-01-03 08:15:52 +00:00
parent 73abe594d1
commit 3026e9b2cc
4 changed files with 90 additions and 33 deletions
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57
core/util.inc.php
View File

@ -1,4 +1,7 @@
<?php
require_once "lib/recaptchalib.php";
require_once "lib/securimage/securimage.php";
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\
* Input / Output Sanitising *
\* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
@ -208,6 +211,60 @@ function theme_file($filepath) {
}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\
* CAPTCHA abstraction *
\* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
function captcha_get_html() {
global $config, $user;
$captcha = "";
if($user->is_anonymous()) {
$rpk = $config->get_string("api_recaptcha_pubkey");
if(!empty($rpk)) {
$captcha = recaptcha_get_html($rpk);
}
else {
session_start();
$securimg = new Securimage();
$base = get_base_href();
$captcha = "<br/><img src='$base/lib/securimage/securimage_show.php?sid=". md5(uniqid(time())) ."'>".
"<br/>CAPTCHA: <input type='text' name='code' value='' />";
}
}
return $captcha;
}
function captcha_check() {
global $config, $user;
if($user->is_anonymous()) {
$rpk = $config->get_string('api_recaptcha_privkey');
if(!empty($rpk)) {
$resp = recaptcha_check_answer(
$rpk,
$_SERVER["REMOTE_ADDR"],
$_POST["recaptcha_challenge_field"],
$_POST["recaptcha_response_field"]);
if(!$resp->is_valid) {
log_info("core", "Captcha failed (ReCaptcha): " . $resp->error);
return false;
}
}
else {
session_start();
$securimg = new Securimage();
if($securimg->check($_POST['code']) == false) {
log_info("core", "Captcha failed (Securimage)");
return false;
}
}
}
return true;
}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\
* Misc *
\* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

24
ext/comment/main.php
View File

@ -1,6 +1,5 @@
<?php
require_once "lib/akismet.class.php";
require_once "lib/recaptchalib.php";
class CommentPostingEvent extends Event {
var $image_id, $user, $comment;
@ -53,6 +52,7 @@ class CommentList extends SimpleExtension {
$config->set_default_int('comment_limit', 10);
$config->set_default_int('comment_list_count', 10);
$config->set_default_int('comment_count', 5);
$config->set_default_bool('comment_captcha', false);
if($config->get_int("ext_comments_version") < 2) {
// shortcut to latest
@ -182,6 +182,7 @@ class CommentList extends SimpleExtension {
public function onSetupBuilding($event) {
$sb = new SetupBlock("Comment Options");
$sb->add_bool_option("comment_anon", "Allow anonymous comments: ");
$sb->add_bool_option("comment_captcha", "<br>Require CAPTCHA for anonymous comments: ");
$sb->add_label("<br>Limit to ");
$sb->add_int_option("comment_limit");
$sb->add_label(" comments per ");
@ -336,25 +337,6 @@ class CommentList extends SimpleExtension {
return md5($_SERVER['REMOTE_ADDR'] . date("%Y%m%d"));
}
private function is_spam_recaptcha($text) {
global $config, $user;
if(strlen($config->get_string('api_recaptcha_privkey')) > 0) {
$resp = recaptcha_check_answer(
$config->get_string('api_recaptcha_privkey'),
$_SERVER["REMOTE_ADDR"],
$_POST["recaptcha_challenge_field"],
$_POST["recaptcha_response_field"]);
if(!$resp->is_valid) {
log_info("comment", "Captcha failed: " . $resp->error);
return true;
}
}
return false;
}
private function is_spam_akismet($text) {
global $config, $user;
if(strlen($config->get_string('comment_wordpress_key')) > 0) {
@ -430,7 +412,7 @@ class CommentList extends SimpleExtension {
}
// rate-limited external service checks last
else if($user->is_anonymous() && $this->is_spam_recaptcha($comment)) {
else if($config->get_bool('comment_captcha') && !captcha_check()) {
throw new CommentPostingException("Error in captcha");
}
else if($user->is_anonymous() && $this->is_spam_akismet($comment)) {

28
ext/comment/theme.php
View File

@ -1,5 +1,4 @@
<?php
class CommentListTheme extends Themelet {
var $comments_shown = 0;
@ -8,7 +7,7 @@ class CommentListTheme extends Themelet {
* the image's comments
*/
public function display_comment_list($images, $page_number, $total_pages, $can_post) {
global $config, $page;
global $config, $page, $user;
// aaaaaaargh php
assert(is_array($images));
@ -52,8 +51,19 @@ class CommentListTheme extends Themelet {
foreach($comments as $comment) {
$comment_html .= $this->comment_to_html($comment);
}
if($can_post) {
$comment_html .= $this->build_postbox($image->id);
if(!$user->is_anonymous()) {
if($can_post) {
$comment_html .= $this->build_postbox($image->id);
}
} else {
if ($can_post) {
if(!$config->get_bool('comment_captcha')) {
$comment_html .= $this->build_postbox($image->id);
}
else {
$comment_html .= "<a href='".make_link("post/view/".$image->id)."'>Add Comment</a>";
}
}
}
$html = "
@ -145,20 +155,18 @@ class CommentListTheme extends Themelet {
}
protected function build_postbox($image_id) {
global $config, $user;
global $config;
$i_image_id = int_escape($image_id);
$hash = CommentList::get_hash();
$captcha = $config->get_bool("comment_captcha") ? captcha_get_html() : "";
$rpk = $config->get_string("api_recaptcha_pubkey");
$reca = (!$user->is_anonymous() || empty($rpk)) ?
"" : recaptcha_get_html($rpk);
return "
<form action='".make_link("comment/add")."' method='POST'>
<form name='comment_form' action='".make_link("comment/add")."' method='POST'>
<input type='hidden' name='image_id' value='$i_image_id' />
<input type='hidden' name='hash' value='$hash' />
<textarea name='comment' rows='5' cols='50'></textarea>
$reca
$captcha
<br><input type='submit' value='Post Comment' />
</form>
";

14
themes/danbooru/comment.theme.php
View File

@ -2,7 +2,7 @@
class CustomCommentListTheme extends CommentListTheme {
public function display_comment_list($images, $page_number, $total_pages, $can_post) {
global $config, $page;
global $config, $page, $user;
$page->disable_left();
@ -52,7 +52,17 @@ class CustomCommentListTheme extends CommentListTheme {
$comment_html .= $this->comment_to_html($comment);
}
if($can_post) {
$comment_html .= $this->build_postbox($image->id);
if(!$user->is_anonymous()) {
$comment_html .= $this->build_postbox($image->id);
}
else {
if(!$config->get_bool('comment_captcha')) {
$comment_html .= $this->build_postbox($image->id);
}
else {
$comment_html .= "<a href='".make_link("post/view/".$image->id)."'>Add Comment</a>";
}
}
}
$html = "