<?php /* Question2Answer by Gideon Greenspan and contributors http://www.question2answer.org/ File: qa-include/qa-app-votes.php Description: Handling incoming votes (application level) This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. More about this license: http://www.question2answer.org/license.php */ if (!defined('QA_VERSION')) { // don't allow this page to be requested directly from browser header('Location: ../'); exit; } function qa_vote_error_html($post, $vote, $userid, $topage) /* Check if $userid can vote on $post, on the page $topage. Return an HTML error to display if there was a problem, or false if it's OK. */ { if (qa_to_override(__FUNCTION__)) { $args=func_get_args(); return qa_call_override(__FUNCTION__, $args); } // The 'login', 'confirm', 'limit', 'userblock' and 'ipblock' permission errors are reported to the user here. // Others ('approve', 'level') prevent the buttons being clickable in the first place, in qa_get_vote_view(...) require_once QA_INCLUDE_DIR.'app/users.php'; require_once QA_INCLUDE_DIR.'app/limits.php'; if ( is_array($post) && ( ($post['basetype']=='Q') || ($post['basetype']=='A') ) && qa_opt(($post['basetype']=='Q') ? 'voting_on_qs' : 'voting_on_as') && ( (!isset($post['userid'])) || (!isset($userid)) || ($post['userid']!=$userid) ) ) { $permiterror=qa_user_post_permit_error(($post['basetype']=='Q') ? 'permit_vote_q' : 'permit_vote_a', $post, QA_LIMIT_VOTES); $errordownonly=(!$permiterror) && ($vote<0); if ($errordownonly) $permiterror=qa_user_post_permit_error('permit_vote_down', $post); switch ($permiterror) { case 'login': return qa_insert_login_links(qa_lang_html('main/vote_must_login'), $topage); break; case 'confirm': return qa_insert_login_links(qa_lang_html($errordownonly ? 'main/vote_down_must_confirm' : 'main/vote_must_confirm'), $topage); break; case 'limit': return qa_lang_html('main/vote_limit'); break; default: return qa_lang_html('users/no_permission'); break; case false: return false; } } else return qa_lang_html('main/vote_not_allowed'); // voting option should not have been presented (but could happen due to options change) } function qa_vote_set($post, $userid, $handle, $cookieid, $vote) /* Actually set (application level) the $vote (-1/0/1) by $userid (with $handle and $cookieid) on $postid. Handles user points, recounting and event reports as appropriate. */ { if (qa_to_override(__FUNCTION__)) { $args=func_get_args(); return qa_call_override(__FUNCTION__, $args); } require_once QA_INCLUDE_DIR.'db/points.php'; require_once QA_INCLUDE_DIR.'db/hotness.php'; require_once QA_INCLUDE_DIR.'db/votes.php'; require_once QA_INCLUDE_DIR.'db/post-create.php'; require_once QA_INCLUDE_DIR.'app/limits.php'; $vote=(int)min(1, max(-1, $vote)); $oldvote=(int)qa_db_uservote_get($post['postid'], $userid); qa_db_uservote_set($post['postid'], $userid, $vote); qa_db_post_recount_votes($post['postid']); $postisanswer=($post['basetype']=='A'); if ($postisanswer) { qa_db_post_acount_update($post['parentid']); qa_db_unupaqcount_update(); } $columns=array(); if ( ($vote>0) || ($oldvote>0) ) $columns[]=$postisanswer ? 'aupvotes' : 'qupvotes'; if ( ($vote<0) || ($oldvote<0) ) $columns[]=$postisanswer ? 'adownvotes' : 'qdownvotes'; qa_db_points_update_ifuser($userid, $columns); qa_db_points_update_ifuser($post['userid'], array($postisanswer ? 'avoteds' : 'qvoteds', 'upvoteds', 'downvoteds')); if ($post['basetype']=='Q') qa_db_hotness_update($post['postid']); if ($vote<0) $event=$postisanswer ? 'a_vote_down' : 'q_vote_down'; elseif ($vote>0) $event=$postisanswer ? 'a_vote_up' : 'q_vote_up'; else $event=$postisanswer ? 'a_vote_nil' : 'q_vote_nil'; qa_report_event($event, $userid, $handle, $cookieid, array( 'postid' => $post['postid'], 'userid' => $post['userid'], 'vote' => $vote, 'oldvote' => $oldvote, )); } function qa_flag_error_html($post, $userid, $topage) /* Check if $userid can flag $post, on the page $topage. Return an HTML error to display if there was a problem, or false if it's OK. */ { if (qa_to_override(__FUNCTION__)) { $args=func_get_args(); return qa_call_override(__FUNCTION__, $args); } // The 'login', 'confirm', 'limit', 'userblock' and 'ipblock' permission errors are reported to the user here. // Others ('approve', 'level') prevent the flag button being shown, in qa_page_q_post_rules(...) require_once QA_INCLUDE_DIR.'db/selects.php'; require_once QA_INCLUDE_DIR.'app/options.php'; require_once QA_INCLUDE_DIR.'app/users.php'; require_once QA_INCLUDE_DIR.'app/limits.php'; if ( is_array($post) && qa_opt('flagging_of_posts') && ( (!isset($post['userid'])) || (!isset($userid)) || ($post['userid']!=$userid) ) ) { switch (qa_user_post_permit_error('permit_flag', $post, QA_LIMIT_FLAGS)) { case 'login': return qa_insert_login_links(qa_lang_html('question/flag_must_login'), $topage); break; case 'confirm': return qa_insert_login_links(qa_lang_html('question/flag_must_confirm'), $topage); break; case 'limit': return qa_lang_html('question/flag_limit'); break; default: return qa_lang_html('users/no_permission'); break; case false: return false; } } else return qa_lang_html('question/flag_not_allowed'); // flagging option should not have been presented } function qa_flag_set_tohide($oldpost, $userid, $handle, $cookieid, $question) /* Set (application level) a flag by $userid (with $handle and $cookieid) on $oldpost which belongs to $question. Handles recounting, admin notifications and event reports as appropriate. Returns true if the post should now be hidden because it has accumulated enough flags. */ { if (qa_to_override(__FUNCTION__)) { $args=func_get_args(); return qa_call_override(__FUNCTION__, $args); } require_once QA_INCLUDE_DIR.'db/votes.php'; require_once QA_INCLUDE_DIR.'app/limits.php'; require_once QA_INCLUDE_DIR.'db/post-update.php'; qa_db_userflag_set($oldpost['postid'], $userid, true); qa_db_post_recount_flags($oldpost['postid']); qa_db_flaggedcount_update(); switch ($oldpost['basetype']) { case 'Q': $event='q_flag'; break; case 'A': $event='a_flag'; break; case 'C': $event='c_flag'; break; } $post=qa_db_select_with_pending(qa_db_full_post_selectspec(null, $oldpost['postid'])); qa_report_event($event, $userid, $handle, $cookieid, array( 'postid' => $oldpost['postid'], 'oldpost' => $oldpost, 'flagcount' => $post['flagcount'], 'questionid' => $question['postid'], 'question' => $question, )); return ($post['flagcount']>=qa_opt('flagging_hide_after')) && !$post['hidden']; } function qa_flag_clear($oldpost, $userid, $handle, $cookieid) /* Clear (application level) a flag on $oldpost by $userid (with $handle and $cookieid). Handles recounting and event reports as appropriate. */ { if (qa_to_override(__FUNCTION__)) { $args=func_get_args(); return qa_call_override(__FUNCTION__, $args); } require_once QA_INCLUDE_DIR.'db/votes.php'; require_once QA_INCLUDE_DIR.'app/limits.php'; require_once QA_INCLUDE_DIR.'db/post-update.php'; qa_db_userflag_set($oldpost['postid'], $userid, false); qa_db_post_recount_flags($oldpost['postid']); qa_db_flaggedcount_update(); switch ($oldpost['basetype']) { case 'Q': $event='q_unflag'; break; case 'A': $event='a_unflag'; break; case 'C': $event='c_unflag'; break; } qa_report_event($event, $userid, $handle, $cookieid, array( 'postid' => $oldpost['postid'], 'oldpost' => $oldpost, )); } function qa_flags_clear_all($oldpost, $userid, $handle, $cookieid) /* Clear (application level) all flags on $oldpost by $userid (with $handle and $cookieid). Handles recounting and event reports as appropriate. */ { if (qa_to_override(__FUNCTION__)) { $args=func_get_args(); return qa_call_override(__FUNCTION__, $args); } require_once QA_INCLUDE_DIR.'db/votes.php'; require_once QA_INCLUDE_DIR.'app/limits.php'; require_once QA_INCLUDE_DIR.'db/post-update.php'; qa_db_userflags_clear_all($oldpost['postid']); qa_db_post_recount_flags($oldpost['postid']); qa_db_flaggedcount_update(); switch ($oldpost['basetype']) { case 'Q': $event='q_clearflags'; break; case 'A': $event='a_clearflags'; break; case 'C': $event='c_clearflags'; break; } qa_report_event($event, $userid, $handle, $cookieid, array( 'postid' => $oldpost['postid'], 'oldpost' => $oldpost, )); } /* Omit PHP closing tag to help avoid accidental output */