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<?php
namespace app\common\util;
class Collection {
protected static $url,$config;
/**
* 采集内容
* @param string $url 采集地址
* @param array $config 配置参数
* @param integer $page 分页采集模式
*/
public static function get_content($url, $config, $page = 0) {
set_time_limit(300);
static $oldurl = array();
$page = intval($page) ? intval($page) : 0;
if ($html = self::get_html($url, $config)) {
if (empty($page)) {
//获取标题
if ($config['title_rule']) {
if(strpos($config['title_rule'],'[内容]')===false){
$data['title'] = $config['title_rule'];
}
else{
$title_rule = self::replace_sg($config['title_rule']);
$data['title'] = self::replace_item(self::cut_html($html, $title_rule[0], $title_rule[1]), $config['title_html_rule']);
}
}
//获取分类
if ($config['type_rule']) {
if(strpos($config['type_rule'],'[内容]')===false){
$data['type'] = $config['type_rule'];
}
else{
$type_rule = self::replace_sg($config['type_rule']);
$data['type'] = self::replace_item(self::cut_html($html, $type_rule[0], $type_rule[1]), $config['type_html_rule']);
}
}
if (empty($data['time'])) $data['time'] = time();
//对自定义数据进行采集
$config['customize_config'] = json_decode($config['customize_config'],true);
if($config['customize_config']){
foreach ($config['customize_config'] as $k=>$v) {
if (empty($v['rule'])) continue;
if(strpos($v['rule'],'[内容]')===false){
$data[$v['en_name']] = $v['rule'];
}
else{
$rule = self::replace_sg($v['rule']);
$data[$v['en_name']] = self::replace_item(self::cut_html($html, $rule[0], $rule[1]), $v['html_rule']);
}
}
}
}
//获取内容
if ($config['content_rule']) {
if(strpos($config['content_rule'],'[内容]')===false){
$data['content'] = $config['content_rule'];
}
else{
$content_rule = self::replace_sg($config['content_rule']);
$data['content'] = self::replace_item(self::cut_html($html, $content_rule[0], $content_rule[1]), $config['content_html_rule']);
}
}
//处理分页
if (in_array($page, array(0,2)) && !empty($config['content_page_start']) && !empty($config['content_page_end'])) {
$oldurl[] = $url;
$tmp[] = $data['content'];
$page_html = self::cut_html($html, $config['content_page_start'], $config['content_page_end']);
//上下页模式
if ($config['content_page_rule'] == 2 && in_array($page, array(0,2)) && $page_html) {
preg_match_all('/<a [^>]*href=[\'"]?([^>\'" ]*)[\'"]?[^>]*>([^<\/]*)<\/a>/i', $page_html, $out);
if (!empty($out[1]) && !empty($out[2])) {
foreach ($out[2] as $k=>$v) {
if (strpos($v, $config['content_nextpage']) === false) continue;
if ($out[1][$k] == '#') continue;
$out[1][$k] = self::url_check($out[1][$k], $url, $config);
if (in_array($out[1][$k], $oldurl)) continue;
$oldurl[] = $out[1][$k];
$results = self::get_content($out[1][$k], $config, 2);
if (!in_array($results['content'], $tmp)) $tmp[] = $results['content'];
}
}
}
//全部罗列模式
if ($config['content_page_rule'] == 1 && $page == 0 && $page_html) {
preg_match_all('/<a [^>]*href=[\'"]?([^>\'" ]*)[\'"]?/i', $page_html, $out);
if (is_array($out[1]) && !empty($out[1])) {
$out = array_unique($out[1]);
foreach ($out as $k=>$v) {
if ($out[1][$k] == '#') continue;
$v = self::url_check($v, $url, $config);
$results = self::get_content($v, $config, 1);
if (!in_array($results['content'], $tmp) && $results['content']!="") $tmp[] = $results['content'];
}
}
}
$data['content'] = $config['content_page'] == 1 ? implode('[page]', $tmp) : implode('', $tmp);
}
if ($page == 0) {
self::$url = $url;
self::$config = $config;
$data['content'] = preg_replace_callback('/<img[^>]*src=[\'"]?([^>\'"\s]*)[\'"]?[^>]*>/i', array('collection','download_img_callback'), $data['content']);
//下载内容中的图片到本地
if (empty($page) && !empty($data['content']) && $config['down_attachment'] == 1) {
}
}
return $data;
}
}
/**
* 转换图片地址为绝对路径，为下载做准备。
* @param array $out 图片地址
*/
protected static function download_img_callback($matches) {
return self::download_img($matches[0], $matches[1]);
}
protected static function download_img($old, $out) {
if (!empty($old) && !empty($out) && strpos($out, '://') === false) {
return str_replace($out, self::url_check($out, self::$url, self::$config), $old);
} else {
return $old;
}
}
/**
* 得到需要采集的网页列表页
* @param array $config 配置参数
* @param integer $num 返回数
*/
public static function url_list(&$config, $num = '') {
$url = array();
switch ($config['sourcetype']) {
case '1'://序列化
$num = empty($num) ? $config['pagesize_end'] : $num;
if($num<$config['pagesize_start']) $num=$config['pagesize_start'];
$p=0;
for ($i = $config['pagesize_start']; $i <= $num; $i = $i + $config['par_num']) {
$url[$p] = str_replace('(*)', $i, $config['urlpage']);
$p++;
}
break;
case '2'://多网址
$url = explode("\r\n", $config['urlpage']);
break;
case '3'://单一网址
case '4'://RSS
$url[] = $config['urlpage'];
break;
}
return $url;
}
/**
* 获取文章网址
* @param string $url 采集地址
* @param array $config 配置
*/
public static function get_url_lists($url, &$config) {
if ($html = self::get_html($url, $config)) {
if ($config['sourcetype'] == 4) { //RSS
$xml = pc_base::load_sys_class('xml');
$html = $xml->xml_unserialize($html);
if (pc_base::load_config('system', 'charset') == 'gbk') {
$html = array_iconv($html, 'utf-8', 'gbk');
}
$data = array();
if (is_array($html['rss']['channel']['item']))foreach ($html['rss']['channel']['item'] as $k=>$v) {
$data[$k]['url'] = $v['link'];
$data[$k]['title'] = $v['title'];
}
} else {
$html = self::cut_html($html, $config['url_start'], $config['url_end']);
$html = str_replace(array("\r", "\n"), '', $html);
$html = str_replace(array("</a>", "</A>"), "</a>\n", $html);
preg_match_all('/<a ([^>]*)>([^\/a>].*)<\/a>/i', $html, $out);
//$out[1] = array_unique($out[1]);
//$out[2] = array_unique($out[2]);
$data = array();
foreach ($out[1] as $k=>$v) {
if (preg_match('/href=[\'"]?([^\'" ]*)[\'"]?/i', $v, $match_out)) {
if ($config['url_contain']) {
if (strpos($match_out[1], $config['url_contain']) === false) {
continue;
}
}
if ($config['url_except']) {
if (strpos($match_out[1], $config['url_except']) !== false) {
continue;
}
}
$url2 = $match_out[1];
$url2 = self::url_check($url2, $url, $config);
$data[$k]['url'] = $url2;
$data[$k]['title'] = strip_tags($out[2][$k]);
} else {
continue;
}
}
}
return $data;
} else {
return false;
}
}
/**
* 获取远程HTML
* @param string $url 获取地址
* @param array $config 配置
*/
protected static function get_html($url, &$config) {
if (!empty($url) && $html = mac_curl_get($url)) {
if ('UTF-8' != $config['sourcecharset'] && $config['sourcetype'] != 4) {
$html = iconv($config['sourcecharset'], 'UTF-8//TRANSLIT//IGNORE', $html);
}
return $html;
} else {
return false;
}
}
/**
*
* HTML切取
* @param string $html 要进入切取的HTML代码
* @param string $start 开始
* @param string $end 结束
*/
protected static function cut_html($html, $start, $end) {
if (empty($html)) return false;
$html = str_replace(array("\r", "\n"), "", $html);
$start = str_replace(array("\r", "\n"), "", $start);
$end = str_replace(array("\r", "\n"), "", $end);
$html = explode(trim($start), $html);
if(is_array($html)) $html = explode(trim($end), $html[1]);
return trim($html[0]);
}
/**
* 过滤代码
* @param string $html HTML代码
* @param array $config 过滤配置
*/
protected static function replace_item($html, $config) {
if (empty($config)) return $html;
$config = explode("\n", $config);
$patterns = $replace = array();
$p = 0;
foreach ($config as $k=>$v) {
if (empty($v)) continue;
$c = explode('[|]', $v);
$patterns[$k] = '/'.str_replace('/', '\/', $c[0]).'/i';
$replace[$k] = $c[1];
$p = 1;
}
return $p ? @preg_replace($patterns, $replace, $html) : false;
}
/**
* 替换采集内容
* @param $html 采集规则
*/
protected static function replace_sg($html) {
$list = explode('[内容]', $html);
if (is_array($list)) foreach ($list as $k=>$v) {
$list[$k] = str_replace(array("\r", "\n"), '', trim($v));
}
return $list;
}
/**
* URL地址检查
* @param string $url 需要检查的URL
* @param string $baseurl 基本URL
* @param array $config 配置信息
*/
protected static function url_check($url, $baseurl, $config) {
$urlinfo = parse_url($baseurl);
$baseurl = $urlinfo['scheme'].'://'.$urlinfo['host'].(substr($urlinfo['path'], -1, 1) === '/' ? substr($urlinfo['path'], 0, -1) : str_replace('\\', '/', dirname($urlinfo['path']))).'/';
if (strpos($url, '://') === false) {
if ($url[0] == '/') {
$url = $urlinfo['scheme'].'://'.$urlinfo['host'].$url;
} else {
if ($config['page_base']) {
$url = $config['page_base'].$url;
} else {
$url = $baseurl.$url;
}
}
}
return $url;
}
} |