mirror of
https://github.com/claudehohl/Stikked.git
synced 2025-04-25 20:41:20 -05:00
d55e065896
Cron used to delete all pastes with toexpire set to 1. Burn on read pastes had this param set by default to 1 also, so they get removed even if unreaded. Stikkedizr theme updated for dynamic width for different devices.
803 lines
21 KiB
PHP
803 lines
21 KiB
PHP
<?php
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/**
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* Class and Function List:
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* Function list:
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* - __construct()
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* - countPastes()
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* - countReplies()
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* - createPaste()
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* - _get_url()
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* - _shorten_url()
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* - checkPaste()
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* - getPaste()
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* - calculate_hits()
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* - getReplies()
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* - getLists()
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* - getTrends()
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* - getSpamLists()
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* - cron()
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* - delete_paste()
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* - random_paste()
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* - _format_diff()
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* - _strip_bad_multibyte_chars()
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* Classes list:
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* - Pastes extends CI_Model
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*/
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class Pastes extends CI_Model
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{
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function __construct()
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{
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parent::__construct();
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}
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function countPastes($ip_address = false)
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{
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$this->db->where('private', 0);
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if ($ip_address)
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{
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$this->db->where('ip_address', $ip_address);
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}
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$query = $this->db->get('pastes');
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return $query->num_rows();
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}
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function countReplies($pid)
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{
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$this->db->where('replyto', $pid);
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$query = $this->db->get('pastes');
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return $query->num_rows();
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}
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function createPaste()
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{
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$data['created'] = time();
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//this is SO evil… saving the «raw» data with htmlspecialchars :-( (but I have to leave this, because of backwards-compatibility)
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$data['raw'] = htmlspecialchars($this->_strip_bad_multibyte_chars($this->input->post('code')));
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$data['lang'] = htmlspecialchars($this->input->post('lang'));
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$data['replyto'] = $this->input->post('reply');
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if ($this->input->post('name'))
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{
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$data['name'] = htmlspecialchars($this->input->post('name'));
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}
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else
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{
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$data['name'] = $this->config->item('unknown_poster');
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if ($data['name'] == 'random')
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{
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$nouns = $this->config->item('nouns');
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$adjectives = $this->config->item('adjectives');
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$data['name'] = $adjectives[array_rand($adjectives) ] . " " . $nouns[array_rand($nouns) ];
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}
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}
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if ($this->input->post('title'))
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{
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$data['title'] = htmlspecialchars($this->input->post('title'));
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}
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else
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{
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$data['title'] = $this->config->item('unknown_title');
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}
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$data['private'] = $this->input->post('private');
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do
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{
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$data['pid'] = substr(md5(md5(mt_rand(0, 1000000) . mktime())) , rand(0, 24) , 8);
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$this->db->select('id');
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$this->db->where('pid', $data['pid']);
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$query = $this->db->get('pastes');
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if ($query->num_rows > 0 or $data['pid'] == 'download')
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{
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$n = 0;
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break;
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}
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else
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{
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$n = 1;
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break;
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}
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}
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while ($n == 0);
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$burn = false;
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if ($this->input->post('expire') == '0')
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{
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$data['expire'] = 0;
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}
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else
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if ($this->input->post('expire') == 'burn')
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{
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$burn = true;
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$data['toexpire'] = 1;
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$data['expire'] = 0;
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$data['private'] = 1;
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}
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else
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{
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$format = 'Y-m-d H:i:s';
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$data['toexpire'] = 1;
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$data['expire'] = mktime() + (60 * $this->input->post('expire'));
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}
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if ($this->input->post('snipurl') == false)
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{
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$data['snipurl'] = false;
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}
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else
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{
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$url = $this->_get_url($data['pid']);
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$shorturl = $this->_shorten_url($url);
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$data['snipurl'] = $shorturl;
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}
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$data['ip_address'] = $this->input->ip_address();
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$this->db->insert('pastes', $data);
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if ($burn)
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{
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echo 'copy this URL, it will become invalid on visit: ' . site_url('view/' . $data['pid']);
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exit;
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}
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else
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{
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return 'view/' . $data['pid'];
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}
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}
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private
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function _get_url($pid)
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{
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$override_url = $this->config->item('displayurl_override');
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return ($override_url ? str_replace('$id', $pid, $override_url) : site_url('view/' . $pid));
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}
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private
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function _shorten_url($url)
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{
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$config_yourls_url = $this->config->item('yourls_url');
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if ($config_yourls_url)
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{
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//use yourls
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$config_yourls_url = $this->config->item('yourls_url');
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$config_yourls_signature = $this->config->item('yourls_signature');
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$timestamp = time();
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$signature = md5($timestamp . $config_yourls_signature);
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// Init the CURL session
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$ch = curl_init();
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curl_setopt($ch, CURLOPT_URL, $config_yourls_url . 'yourls-api.php');
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curl_setopt($ch, CURLOPT_HEADER, 0);
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curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
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curl_setopt($ch, CURLOPT_POST, 1);
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curl_setopt($ch, CURLOPT_POSTFIELDS, array(
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'url' => $url,
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'format' => 'simple',
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'action' => 'shorturl',
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'signature' => $signature,
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'timestamp' => $timestamp,
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));
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$resp = curl_exec($ch);
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curl_close($ch);
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$shorturl = (empty($resp) ? false : $resp);
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}
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else
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{
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//use gdgw
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$url = urlencode($url);
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$config_gwgd_url = $this->config->item('gwgd_url');
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$gwgd_url = ($config_gwgd_url ? $config_gwgd_url : 'http://gw.gd/');
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$target = $gwgd_url . 'api.php?long=' . $url;
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// Init the CURL session
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$ch = curl_init();
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curl_setopt($ch, CURLOPT_URL, $target);
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curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
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curl_setopt($ch, CURLOPT_ENCODING, 'identity');
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$resp = curl_exec($ch);
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curl_close($ch);
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$shorturl = (empty($resp) ? false : $resp);
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}
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return $shorturl;
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}
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function checkPaste($seg = 2)
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{
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if ($this->uri->segment($seg) == "")
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{
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return false;
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}
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else
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{
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$this->db->where('pid', $this->uri->segment($seg));
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$query = $this->db->get('pastes');
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if ($query->num_rows() > 0)
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{
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return true;
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}
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else
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{
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return false;
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}
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}
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}
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function getPaste($seg = 2, $replies = false, $diff = false)
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{
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if ($this->uri->segment($seg) == '')
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{
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redirect('');
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}
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else
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{
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$pid = $this->uri->segment($seg);
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$data['script'] = 'jquery.js';
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}
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$this->load->library('process');
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$this->db->where('pid', $pid);
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$query = $this->db->get('pastes');
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foreach ($query->result_array() as $row)
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{
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$data['title'] = $row['title'];
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$data['pid'] = $row['pid'];
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$data['name'] = $row['name'];
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$data['lang_code'] = $row['lang'];
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$data['lang'] = $this->languages->code_to_description($row['lang']);
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$data['paste'] = $this->process->syntax(htmlspecialchars_decode($row['raw']) , $row['lang']);
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$data['created'] = $row['created'];
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$data['private'] = $row['private'];
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$data['expire'] = $row['expire'];
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$data['toexpire'] = $row['toexpire'];
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$data['url'] = $this->_get_url($row['pid']);
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$data['raw'] = $row['raw'];
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$data['hits'] = $row['hits'];
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$data['hits_updated'] = $row['hits_updated'];
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$data['snipurl'] = $row['snipurl'];
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$inreply = $row['replyto'];
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}
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if ($inreply)
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{
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$this->db->select('name, title');
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$this->db->where('pid', $inreply);
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$query = $this->db->get('pastes');
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if ($query->num_rows() > 0)
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{
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foreach ($query->result_array() as $row)
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{
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$data['inreply']['title'] = $row['title'];
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$data['inreply']['name'] = $row['name'];
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$data['inreply']['url'] = site_url('view/' . $inreply);
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}
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}
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else
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{
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$data['inreply'] = false;
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}
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if ($diff)
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{
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$this->db->select('raw');
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$this->db->where('pid', $inreply);
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$query = $this->db->get('pastes');
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if ($query->num_rows() > 0)
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{
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foreach ($query->result_array() as $row)
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{
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//diff
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//yes, I'm aware, two times htmlspecialchars_decode(). Needs to be, since it's saved that way in the DB from the original stikked author ages ago ;)
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include_once (APPPATH . '/libraries/finediff.php');
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$from_text = htmlspecialchars_decode(utf8_decode($row['raw']));
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$to_text = htmlspecialchars_decode(utf8_decode($data['raw']));
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$opcodes = FineDiff::getDiffOpcodes($from_text, $to_text, FineDiff::$wordGranularity);
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$to_text = FineDiff::renderToTextFromOpcodes($from_text, $opcodes);
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$data['paste'] = htmlspecialchars_decode($this->_format_diff(nl2br(FineDiff::renderDiffToHTMLFromOpcodes($from_text, $opcodes))));
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}
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}
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else
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{
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$data['inreply'] = false;
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}
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}
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}
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if ($replies)
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{
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$amount = $this->config->item('per_page');
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$page = ($this->uri->segment(3) ? $this->uri->segment(3) : 0);
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$this->db->select('title, name, created, pid, lang');
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$this->db->where('replyto', $data['pid']);
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$this->db->order_by('id', 'desc');
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$this->db->limit($amount);
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$query = $this->db->get('pastes', $amount, $page);
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if ($query->num_rows() > 0)
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{
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$n = 0;
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foreach ($query->result_array() as $row)
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{
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$data['replies'][$n]['title'] = $row['title'];
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$data['replies'][$n]['name'] = $row['name'];
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$data['replies'][$n]['lang'] = $row['lang'];
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$data['replies'][$n]['created'] = $row['created'];
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$data['replies'][$n]['pid'] = $row['pid'];
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$n++;
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}
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$config['base_url'] = site_url('view/' . $data['pid']);
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$config['total_rows'] = $this->countReplies($data['pid']);
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$config['per_page'] = $amount;
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$config['num_links'] = 9;
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$config['full_tag_open'] = '<div class="pages">';
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$config['full_tag_close'] = '</div>';
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$config['uri_segment'] = 3;
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$this->load->library('pagination');
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$this->pagination->initialize($config);
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$data['pages'] = $this->pagination->create_links();
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}
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else
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{
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$replies = false;
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}
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}
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/*
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* Hits
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* First check if record already exists. If it does, do not insert.
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* INSERT IGNORE INTO does not work for postgres.
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*/
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$this->db->select('count(paste_id) as count');
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$this->db->where('paste_id', $pid);
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$this->db->where('ip_address', $this->input->ip_address());
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$query = $this->db->get('trending');
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$hits_count = $query->result_array();
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$hits_count = $hits_count[0]['count'];
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if ($hits_count == 0)
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{
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$this->db->insert('trending', array(
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'paste_id' => $pid,
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'ip_address' => $this->input->ip_address() ,
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'created' => mktime() ,
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));
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}
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//update hits counter every minute
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if (mktime() > (60 + $data['hits_updated']))
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{
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$this->calculate_hits($pid, $data['hits']);
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}
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//burn if necessary
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if ($data['expire'] == 0 and $data['toexpire'] == 1)
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{
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$this->delete_paste($data['pid']);
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}
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return $data;
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}
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function calculate_hits($pid, $current_hits)
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{
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$this->db->select('count(paste_id) as count');
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$this->db->where('paste_id', $pid);
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$query = $this->db->get('trending');
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$hits_count = $query->result_array();
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$hits_count = $hits_count[0]['count'];
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if ($hits_count != $current_hits)
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{
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//update
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$this->db->where('pid', $pid);
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$this->db->update('pastes', array(
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'hits' => $hits_count,
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'hits_updated' => mktime() ,
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));
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}
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}
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function getReplies($seg = 3)
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{
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$amount = $this->config->item('per_page');
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if ($this->uri->segment($seg) == '')
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{
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redirect('');
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}
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else
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{
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$pid = $this->uri->segment($seg);
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}
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$this->db->select('title, name, created, pid, raw, lang');
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$this->db->where('replyto', $pid);
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$this->db->order_by('id', 'desc');
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$this->db->limit($amount);
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$query = $this->db->get('pastes', $amount);
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if ($query->num_rows() > 0)
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{
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$n = 0;
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foreach ($query->result_array() as $row)
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{
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$data['replies'][$n]['title'] = $row['title'];
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$data['replies'][$n]['name'] = $row['name'];
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$data['replies'][$n]['lang'] = $row['lang'];
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$data['replies'][$n]['created'] = $row['created'];
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$data['replies'][$n]['pid'] = $row['pid'];
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if ($this->uri->segment(2) == 'rss')
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{
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$data['replies'][$n]['paste'] = $this->process->syntax(htmlspecialchars_decode($row['raw']) , $row['lang']);
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$data['replies'][$n]['raw'] = $row['raw'];
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}
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$n++;
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}
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}
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return $data;
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}
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function getLists($root = 'lists/', $seg = 2)
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{
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$this->load->library('pagination');
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$this->load->library('process');
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$amount = $this->config->item('per_page');
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$page = ($this->uri->segment($seg) ? $this->uri->segment($seg) : 0);
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$search = $this->input->get('search');
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if ($search)
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{
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$search = '%' . $search . '%';
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// count total results
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$sql = "SELECT id FROM pastes WHERE private = 0 AND (title LIKE ? OR raw LIKE ?)";
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$query = $this->db->query($sql, array(
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$search,
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$search,
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));
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$total_rows = $query->num_rows();
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// query
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if ($this->db->dbdriver == "postgre")
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{
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$sql = "SELECT id, title, name, created, pid, lang, raw FROM pastes WHERE private = 0 AND (title LIKE ? OR raw LIKE ?) ORDER BY created DESC LIMIT $amount OFFSET $page";
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}
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else
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if ($root == 'api/recent')
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{
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$sql = "SELECT id, title, name, created, pid, lang, raw FROM pastes WHERE private = 0 AND (title LIKE ? OR raw LIKE ?) ORDER BY created DESC LIMIT 0,15";
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}
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else
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{
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$sql = "SELECT id, title, name, created, pid, lang, raw FROM pastes WHERE private = 0 AND (title LIKE ? OR raw LIKE ?) ORDER BY created DESC LIMIT $page,$amount";
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}
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$query = $this->db->query($sql, array(
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$search,
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$search,
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));
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}
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else
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{
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// count total results
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$sql = "SELECT id FROM pastes WHERE private = 0";
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$query = $this->db->query($sql);
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$total_rows = $query->num_rows();
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// query
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if ($this->db->dbdriver == "postgre")
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{
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$sql = "SELECT id, title, name, created, pid, lang, raw FROM pastes WHERE private = 0 ORDER BY created DESC LIMIT $amount OFFSET $page";
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}
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else
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{
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$sql = "SELECT id, title, name, created, pid, lang, raw FROM pastes WHERE private = 0 ORDER BY created DESC LIMIT $page,$amount";
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}
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$query = $this->db->query($sql);
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}
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if ($query->num_rows() > 0)
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{
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$n = 0;
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foreach ($query->result_array() as $row)
|
|
{
|
|
$data['pastes'][$n]['id'] = $row['id'];
|
|
$data['pastes'][$n]['title'] = $row['title'];
|
|
$data['pastes'][$n]['name'] = $row['name'];
|
|
$data['pastes'][$n]['created'] = $row['created'];
|
|
$data['pastes'][$n]['lang'] = $this->languages->code_to_description($row['lang']);
|
|
$data['pastes'][$n]['pid'] = $row['pid'];
|
|
|
|
if ($this->uri->segment(2) == 'rss')
|
|
{
|
|
$data['pastes'][$n]['paste'] = $this->process->syntax(htmlspecialchars_decode($row['raw']) , $row['lang']);
|
|
}
|
|
$data['pastes'][$n]['raw'] = $row['raw'];
|
|
$n++;
|
|
}
|
|
}
|
|
$config['base_url'] = site_url($root);
|
|
$config['total_rows'] = $total_rows;
|
|
$config['per_page'] = $amount;
|
|
$config['num_links'] = 9;
|
|
$config['full_tag_open'] = '<div class="pages">';
|
|
$config['full_tag_close'] = '</div>';
|
|
$config['uri_segment'] = $seg;
|
|
$searchparams = ($this->input->get('search') ? '?search=' . $this->input->get('search') : '');
|
|
$config['first_url'] = '0' . $searchparams;
|
|
$config['suffix'] = $searchparams;
|
|
$this->pagination->initialize($config);
|
|
$data['pages'] = $this->pagination->create_links();
|
|
return $data;
|
|
}
|
|
|
|
function getTrends($root = 'trends/', $seg = 2)
|
|
{
|
|
$this->load->library('pagination');
|
|
$amount = $this->config->item('per_page');
|
|
$page = ($this->uri->segment(2) ? $this->uri->segment(2) : 0);
|
|
$search = $this->input->get('search');
|
|
|
|
if ($search)
|
|
{
|
|
$search = '%' . $search . '%';
|
|
|
|
// count total results
|
|
$sql = "SELECT id FROM pastes WHERE private = 0 AND (title LIKE ? OR raw LIKE ?)";
|
|
$query = $this->db->query($sql, array(
|
|
$search,
|
|
$search,
|
|
));
|
|
$total_rows = $query->num_rows();
|
|
|
|
// query
|
|
|
|
if ($this->db->dbdriver == "postgre")
|
|
{
|
|
$sql = "SELECT id, title, name, created, pid, lang, raw, hits FROM pastes WHERE private = 0 AND (title LIKE ? OR raw LIKE ?) ORDER BY hits DESC, created DESC LIMIT $amount OFFSET $page";
|
|
}
|
|
else
|
|
if ($root == "api/trending")
|
|
{
|
|
$sql = "SELECT id, title, name, created, pid, lang, raw, hits FROM pastes WHERE private = 0 AND (title LIKE ? OR raw LIKE ?) ORDER BY hits DESC, created DESC LIMIT 0,15";
|
|
}
|
|
else
|
|
{
|
|
$sql = "SELECT id, title, name, created, pid, lang, raw, hits FROM pastes WHERE private = 0 AND (title LIKE ? OR raw LIKE ?) ORDER BY hits DESC, created DESC LIMIT $page,$amount";
|
|
}
|
|
$query = $this->db->query($sql, array(
|
|
$search,
|
|
$search,
|
|
));
|
|
}
|
|
else
|
|
{
|
|
|
|
// count total results
|
|
$sql = "SELECT id FROM pastes WHERE private = 0";
|
|
$query = $this->db->query($sql);
|
|
$total_rows = $query->num_rows();
|
|
|
|
// query
|
|
|
|
if ($this->db->dbdriver == "postgre")
|
|
{
|
|
$sql = "SELECT id, title, name, created, pid, lang, raw, hits FROM pastes WHERE private = 0 ORDER BY hits DESC, created DESC LIMIT $amount OFFSET $page";
|
|
}
|
|
else
|
|
{
|
|
$sql = "SELECT id, title, name, created, pid, lang, raw, hits FROM pastes WHERE private = 0 ORDER BY hits DESC, created DESC LIMIT $page,$amount";
|
|
}
|
|
$query = $this->db->query($sql);
|
|
}
|
|
|
|
if ($query->num_rows() > 0)
|
|
{
|
|
$n = 0;
|
|
foreach ($query->result_array() as $row)
|
|
{
|
|
$data['pastes'][$n]['id'] = $row['id'];
|
|
$data['pastes'][$n]['title'] = $row['title'];
|
|
$data['pastes'][$n]['name'] = $row['name'];
|
|
$data['pastes'][$n]['created'] = $row['created'];
|
|
$data['pastes'][$n]['lang'] = $this->languages->code_to_description($row['lang']);
|
|
$data['pastes'][$n]['pid'] = $row['pid'];
|
|
$data['pastes'][$n]['raw'] = $row['raw'];
|
|
$data['pastes'][$n]['hits'] = $row['hits'];
|
|
$n++;
|
|
}
|
|
}
|
|
$config['base_url'] = site_url($root);
|
|
$config['total_rows'] = $total_rows;
|
|
$config['per_page'] = $amount;
|
|
$config['num_links'] = 9;
|
|
$config['full_tag_open'] = '<div class="pages">';
|
|
$config['full_tag_close'] = '</div>';
|
|
$config['uri_segment'] = $seg;
|
|
$searchparams = ($this->input->get('search') ? '?search=' . $this->input->get('search') : '');
|
|
$config['first_url'] = '0' . $searchparams;
|
|
$config['suffix'] = $searchparams;
|
|
$this->pagination->initialize($config);
|
|
$data['pages'] = $this->pagination->create_links();
|
|
return $data;
|
|
}
|
|
|
|
function getSpamLists($root = 'spamadmin/', $seg = 2, $ip_address = false)
|
|
{
|
|
$this->load->library('pagination');
|
|
$this->load->library('process');
|
|
$amount = $this->config->item('per_page');
|
|
$page = ($this->uri->segment($seg) ? $this->uri->segment($seg) : 0);
|
|
$this->db->select('id, title, name, created, pid, lang, ip_address');
|
|
$this->db->where('private', 0);
|
|
|
|
if ($ip_address)
|
|
{
|
|
$this->db->where('ip_address', $ip_address);
|
|
}
|
|
$this->db->order_by('created', 'desc');
|
|
$query = $this->db->get('pastes', $amount, $page);
|
|
|
|
if ($query->num_rows() > 0)
|
|
{
|
|
$n = 0;
|
|
foreach ($query->result_array() as $row)
|
|
{
|
|
$data['pastes'][$n]['id'] = $row['id'];
|
|
$data['pastes'][$n]['title'] = $row['title'];
|
|
$data['pastes'][$n]['name'] = $row['name'];
|
|
$data['pastes'][$n]['created'] = $row['created'];
|
|
$data['pastes'][$n]['lang'] = $row['lang'];
|
|
$data['pastes'][$n]['pid'] = $row['pid'];
|
|
$data['pastes'][$n]['ip_address'] = $row['ip_address'];
|
|
$n++;
|
|
}
|
|
}
|
|
|
|
//pagination
|
|
$config['base_url'] = site_url($root);
|
|
$config['total_rows'] = $this->countPastes($ip_address);
|
|
$config['per_page'] = $amount;
|
|
$config['num_links'] = 9;
|
|
$config['full_tag_open'] = '<div class="pages">';
|
|
$config['full_tag_close'] = '</div>';
|
|
$config['uri_segment'] = $seg;
|
|
$this->pagination->initialize($config);
|
|
$data['pages'] = $this->pagination->create_links();
|
|
|
|
//total spam attempts
|
|
$this->db->select('SUM(spam_attempts) as sum');
|
|
$query = $this->db->get('blocked_ips');
|
|
$q = $query->result_array();
|
|
$data['total_spam_attempts'] = ($q[0]['sum'] != '' ? $q[0]['sum'] : 0);
|
|
|
|
//return
|
|
return $data;
|
|
}
|
|
|
|
function cron()
|
|
{
|
|
$now = now();
|
|
$this->db->where('toexpire', '1');
|
|
$query = $this->db->get('pastes');
|
|
foreach ($query->result_array() as $row)
|
|
{
|
|
$stamp = $row['expire'];
|
|
|
|
if ($now > $stamp AND $stamp != 0)
|
|
{
|
|
$this->delete_paste($row['pid']);
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
|
|
function delete_paste($pid)
|
|
{
|
|
$this->db->where('pid', $pid);
|
|
$this->db->delete('pastes');
|
|
|
|
// delete from trending
|
|
$this->db->where('paste_id', $pid);
|
|
$this->db->delete('trending');
|
|
return;
|
|
}
|
|
|
|
function random_paste()
|
|
{
|
|
$this->load->library('process');
|
|
$this->db->order_by('id', 'RANDOM');
|
|
$this->db->limit(1);
|
|
$query = $this->db->get('pastes');
|
|
|
|
if ($query->num_rows() > 0)
|
|
{
|
|
foreach ($query->result_array() as $row)
|
|
{
|
|
$data['title'] = $row['title'];
|
|
$data['pid'] = $row['pid'];
|
|
$data['name'] = $row['name'];
|
|
$data['lang_code'] = $row['lang'];
|
|
$data['lang'] = $this->languages->code_to_description($row['lang']);
|
|
$data['paste'] = $this->process->syntax(htmlspecialchars_decode($row['raw']) , $row['lang']);
|
|
$data['created'] = $row['created'];
|
|
$data['url'] = $this->_get_url($row['pid']);
|
|
$data['raw'] = $row['raw'];
|
|
$data['hits'] = $row['hits'];
|
|
$data['hits_updated'] = $row['hits_updated'];
|
|
$data['snipurl'] = $row['snipurl'];
|
|
$inreply = $row['replyto'];
|
|
}
|
|
|
|
if ($inreply)
|
|
{
|
|
$this->db->select('name, title');
|
|
$this->db->where('pid', $inreply);
|
|
$query = $this->db->get('pastes');
|
|
|
|
if ($query->num_rows() > 0)
|
|
{
|
|
foreach ($query->result_array() as $row)
|
|
{
|
|
$data['inreply']['title'] = $row['title'];
|
|
$data['inreply']['name'] = $row['name'];
|
|
$data['inreply']['url'] = site_url('view/' . $inreply);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
$data['inreply'] = false;
|
|
}
|
|
}
|
|
return $data;
|
|
}
|
|
return false;
|
|
}
|
|
private
|
|
function _format_diff($text)
|
|
{
|
|
$text = str_replace("\t", ' ', $text);
|
|
$text = str_replace("<br />", '<br/>', $text);
|
|
$text = str_replace(" ", ' ', $text);
|
|
$text = '<div class="text" style="font-family:monospace; font: normal normal 1em/1.2em monospace;">' . $text . '</div>';
|
|
return $text;
|
|
}
|
|
private
|
|
function _strip_bad_multibyte_chars($str)
|
|
{
|
|
$result = '';
|
|
$length = strlen($str);
|
|
for ($i = 0;$i < $length;$i++)
|
|
{
|
|
|
|
// Replace four-byte characters (11110www 10zzzzzz 10yyyyyy 10xxxxxx)
|
|
$ord = ord($str[$i]);
|
|
|
|
if ($ord >= 240 && $ord <= 244)
|
|
{
|
|
$result.= '?';
|
|
$i+= 3;
|
|
}
|
|
else
|
|
{
|
|
$result.= $str[$i];
|
|
}
|
|
}
|
|
return $result;
|
|
}
|
|
}
|