Javascript 与单独的Chrome选项卡通信
我了解此操作的安全风险，以及为什么会出现这样的错误：Javascript 与单独的Chrome选项卡通信,javascript,php,jquery,Javascript,Php,Jquery,我了解此操作的安全风险，以及为什么会出现这样的错误： Uncaught DOMException: Blocked a frame with origin "http://myurl.com" from accessing a cross-origin frame. 所以我想知道是否有一个安全的方法让我这样做 我们公司有两个网站内部的——我的，还有一个不在同一个域上 在我的页面中，我感兴趣的是以一种方式加载第二个页面，这种方式允许我从该页面访问ID元素，拉入这些ID元素包含的数据，并将该数据
Uncaught DOMException: Blocked a frame with origin
"http://myurl.com" from accessing a cross-origin frame.
/* Literally load the page within my own and pull data once it's loaded */
$('#test').load('url.com/site2');
/* load the second page as a variable, then try to access an id on
that page through the variable */
var win = window.open('url.com/site2');
var test = win.getElementByID('#id_element_i_want_to_pull');
/* I can do something using PHP, but this just loads the page, but doesn't allow
me to access any of the ID elements on that page which
doesn't really help me: */
$temp = file_get_contents('url.com/site2');
有什么办法吗？我没有访问第二台服务器上的代码的权限，因此（可能）我没有办法将任何代码放在那里，如果需要的话，我可以访问这些代码。如果这是唯一的方法，我至少想知道它，并知道如果可能的话，这种类型的请求将如何完成。我认为你在服务器上加载它是正确的，你只需要将它解析成一些你可以使用id来获取东西的东西。我已经有一段时间没有在PHP中做过很多工作了，但是您应该能够使用类来完成这项工作。基本上，你加载文本，把它放到其中一个家伙身上，然后根据他们的id获取元素。我认为你在服务器上加载它是正确的，你只需要将它解析成可以用来根据id获取内容的东西。我在PHP上做了很多工作，已经有一段时间了，但是您应该能够使用类来完成这项工作。基本上，您加载文本，将其放入其中一个家伙中，然后根据他们的id获取元素。如果这是一个您无法直接访问的站点，听起来您可以使用DOMDocument类进行一些DOM“胡闹”或“刮除”，如前所述 使用DOMDocument，您可以获取整个页面的内容，然后根据要查找的标记/属性对其进行过滤。我曾经在PHP7中写过类似的内容，这可能会有所帮助：
class HooverDom {
public $content;
public static function checkContentUrl($url) {
if (stripos($url, 'http') !== 0) {
return 'http://' . $url;
}
return $url;
}
public function getContent($url) {
if (!$this->content) {
$url = self::checkContentUrl($url);
if ($url) {
$this->content = new \DOMDocument( '1.0', 'utf-8' );
$this->content->preserveWhiteSpace = false;
// suppress warnings from invalid code
@$this->content->loadHTMLFile($url);
}
}
return $this->content;
}
/**
* @param $url
* @param $tag
*
* @return array
* Extract tags that are of interest
*/
public function getTags($url, $tag) {
$count = 0;
$result = array();
$url = self::checkContentUrl($url);
if (!$url) return false;
$elements = $this->getContent($url)->getElementsByTagName($tag);
foreach ($elements as $node) {
$result[$count]['value'] = trim(preg_replace('/\s+/', ' ', $node->nodeValue));
if ($node->hasAttributes()) {
foreach ($node->attributes as $name => $attr) {
$result[$count]['attributes'][$name] = $attr->value;
}
}
$count++;
}
return $result;
}
/**
* @param $url
* @param $attr
* @param null [$domain]
*
* @return array
* Extract specific attributes rather than tags. Get all tags with *
* and get their attributes. Optional $domain value keeps all results
* within supplied domain name
*/
public function getAttributes($url, $attr, $domain = null) {
$result = array();
$elements = $this->getContent($url)->getElementsByTagName('*');
foreach ($elements as $node) {
if ($node->hasAttribute($attr)) {
$value = $node->getAttribute($attr);
if ($domain) {
if (stripos($value, $domain) !== FALSE) {
$result[] = trim($value);
}
} else {
$result[] = trim($value);
}
}
}
return $result;
}
}
define('DEFAULT_URL', 'https://developer.mozilla.org/en-US');
define('DEFAULT_TAG', 'div');
$vac = new HooverDom();
$url = strip_tags($_GET['url'] ?? DEFAULT_URL);
$tag = strip_tags($_GET['tag'] ?? DEFAULT_TAG);
echo 'Dump of tags: ' . PHP_EOL;
var_dump($vac->getTags($url, $tag));
array (size=56)
0 =>
array (size=2)
'value' => string 'Mozilla is working on a new program for developers and other web builders like you. Help shape that program by taking our 10 minute survey: https://googl/forms/Ync2VuTWwAkQFvJx2' (length=178)
'attributes' =>
array (size=1)
'class' => string 'global-notice' (length=13)
1 =>
array (size=2)
'value' => string 'Mozilla is working on a new program for developers and other web builders like you. Help shape that program by taking our 10 minute survey: ' (length=178)
'attributes' =>
array (size=1)
'class' => string 'wrap center' (length=11)
请注意，只有在运行5的情况下，PHP7中才使用NULL coalesce运算符（？？）。如果您无法直接访问该站点，则听起来您可以使用前面提到的DOMDocument类执行一些DOM“胡闹”或“刮除” 使用DOMDocument，您可以获取整个页面的内容，然后根据要查找的标记/属性对其进行过滤。我曾经在PHP7中写过类似的内容，这可能会有所帮助：
class HooverDom {
public $content;
public static function checkContentUrl($url) {
if (stripos($url, 'http') !== 0) {
return 'http://' . $url;
}
return $url;
}
public function getContent($url) {
if (!$this->content) {
$url = self::checkContentUrl($url);
if ($url) {
$this->content = new \DOMDocument( '1.0', 'utf-8' );
$this->content->preserveWhiteSpace = false;
// suppress warnings from invalid code
@$this->content->loadHTMLFile($url);
}
}
return $this->content;
}
/**
* @param $url
* @param $tag
*
* @return array
* Extract tags that are of interest
*/
public function getTags($url, $tag) {
$count = 0;
$result = array();
$url = self::checkContentUrl($url);
if (!$url) return false;
$elements = $this->getContent($url)->getElementsByTagName($tag);
foreach ($elements as $node) {
$result[$count]['value'] = trim(preg_replace('/\s+/', ' ', $node->nodeValue));
if ($node->hasAttributes()) {
foreach ($node->attributes as $name => $attr) {
$result[$count]['attributes'][$name] = $attr->value;
}
}
$count++;
}
return $result;
}
/**
* @param $url
* @param $attr
* @param null [$domain]
*
* @return array
* Extract specific attributes rather than tags. Get all tags with *
* and get their attributes. Optional $domain value keeps all results
* within supplied domain name
*/
public function getAttributes($url, $attr, $domain = null) {
$result = array();
$elements = $this->getContent($url)->getElementsByTagName('*');
foreach ($elements as $node) {
if ($node->hasAttribute($attr)) {
$value = $node->getAttribute($attr);
if ($domain) {
if (stripos($value, $domain) !== FALSE) {
$result[] = trim($value);
}
} else {
$result[] = trim($value);
}
}
}
return $result;
}
}
define('DEFAULT_URL', 'https://developer.mozilla.org/en-US');
define('DEFAULT_TAG', 'div');
$vac = new HooverDom();
$url = strip_tags($_GET['url'] ?? DEFAULT_URL);
$tag = strip_tags($_GET['tag'] ?? DEFAULT_TAG);
echo 'Dump of tags: ' . PHP_EOL;
var_dump($vac->getTags($url, $tag));
array (size=56)
0 =>
array (size=2)
'value' => string 'Mozilla is working on a new program for developers and other web builders like you. Help shape that program by taking our 10 minute survey: https://googl/forms/Ync2VuTWwAkQFvJx2' (length=178)
'attributes' =>
array (size=1)
'class' => string 'global-notice' (length=13)
1 =>
array (size=2)
'value' => string 'Mozilla is working on a new program for developers and other web builders like you. Help shape that program by taking our 10 minute survey: ' (length=178)
'attributes' =>
array (size=1)
'class' => string 'wrap center' (length=11)