好的，所以我认为这可能是您所需要的（经过一些修改）。
Caveats:
- 这是 PHP，而不是 C#（但您说过您对任何服务器端语言感兴趣）。
- 此代码挂钩（非官方）Pinterest 搜索端点。您需要更改 $data 和 $search_res 以反映您的任务的适当端点（例如 BoardFeedResouce）。注意：至少对于搜索，Pinterest 目前使用两个端点，一个用于初始页面加载，另一个用于无限滚动操作。每个都有自己的预期参数结构。
- Pinterest 没有官方的公共 API，预计每当他们更改任何内容时都会出现这种情况，并且不会发出警告。
- 您可能会发现 pinterestapi.co.uk 更容易实施并且适合您正在做的事情。
- 我在类下面有一些演示/调试代码，一旦您获得所需的数据，这些代码就不应该存在，并且您可能想要更改默认的页面获取限制。
兴趣点：
- 下划线
_参数采用 JavaScript 格式的时间戳，即。类似于 Unix 时间，但添加了毫秒。它实际上并不用于分页。
- 分页使用
bookmarks属性，因此您向不需要它的“新”端点发出第一个请求，然后获取bookmarks从结果中获取并在您的请求中使用它来获取下一个“页面”结果，采用bookmarks从这些结果中获取下一页，依此类推，直到用完结果或达到预设限制（或者达到服务器脚本执行时间的最大值）。我很想知道到底是什么bookmarks字段编码。我想，除了 PIN ID 或其他页面标记之外，还有一些有趣的秘密武器。
- 我跳过 html，而是处理 JSON，因为它（对我来说）比使用 DOM 操作解决方案或一堆正则表达式更容易。
<?php
if(!class_exists('Skrivener_Pins')) {
class Skrivener_Pins {
/**
* Constructor
*/
public function __construct() {
}
/**
* Pinterest search function. Uses Pinterest's "internal" page APIs, so likely to break if they change.
* @author [@skrivener] Philip Tillsley
* @param $search_str The string used to search for matching pins.
* @param $limit Max number of pages to get, defaults to 2 to avoid excessively large queries. Use care when passing in a value.
* @param $bookmarks_str Used internally for recursive fetches.
* @param $pages Used internally to limit recursion.
* @return array() int['id'], obj['image'], str['pin_link'], str['orig_link'], bool['video_flag']
*
* TODO:
*
*
*/
public function get_tagged_pins($search_str, $limit = 1, $bookmarks_str = null, $page = 1) {
// limit depth of recursion, ie. number of pages of 25 returned, otherwise we can hang on huge queries
if( $page > $limit ) return false;
// are we getting a next page of pins or not
$next_page = false;
if( isset($bookmarks_str) ) $next_page = true;
// build url components
if( !$next_page ) {
// 1st time
$search_res = 'BaseSearchResource'; // end point
$path = '&module_path=' . urlencode('SearchInfoBar(query=' . $search_str . ', scope=boards)');
$data = preg_replace("'[\n\r\s\t]'","",'{
"options":{
"scope":"pins",
"show_scope_selector":true,
"query":"' . $search_str . '"
},
"context":{
"app_version":"2f83a7e"
},
"module":{
"name":"SearchPage",
"options":{
"scope":"pins",
"query":"' . $search_str . '"
}
},
"append":false,
"error_strategy":0
}');
} else {
// this is a fetch for 'scrolling', what changes is the bookmarks reference,
// so pass the previous bookmarks value to this function and it is included
// in query
$search_res = 'SearchResource'; // different end point from 1st time search
$path = '';
$data = preg_replace("'[\n\r\s\t]'","",'{
"options":{
"query":"' . $search_str . '",
"bookmarks":["' . $bookmarks_str . '"],
"show_scope_selector":null,
"scope":"pins"
},
"context":{
"app_version":"2f83a7e"
},
"module":{
"name":"GridItems",
"options":{
"scrollable":true,
"show_grid_footer":true,
"centered":true,
"reflow_all":true,
"virtualize":true,
"item_options":{
"show_pinner":true,
"show_pinned_from":false,
"show_board":true
},
"layout":"variable_height"
}
},
"append":true,
"error_strategy":2
}');
}
$data = urlencode($data);
$timestamp = time() * 1000; // unix time but in JS format (ie. has ms vs normal server time in secs), * 1000 to add ms (ie. 0ms)
// build url
$url = 'http://pinterest.com/resource/' . $search_res . '/get/?source_url=/search/pins/?q=' . $search_str
. '&data=' . $data
. $path
. '&_=' . $timestamp;//'1378150472669';
// setup curl
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, array("X-Requested-With: XMLHttpRequest"));
// get result
$curl_result = curl_exec ($ch); // this echoes the output
$curl_result = json_decode($curl_result);
curl_close ($ch);
// clear html to make var_dumps easier to see when debugging
// $curl_result->module->html = '';
// isolate the pin data, different end points have different data structures
if(!$next_page) $pin_array = $curl_result->module->tree->children[1]->children[0]->children[0]->children;
else $pin_array = $curl_result->module->tree->children;
// map the pin data into desired format
$pin_data_array = array();
$bookmarks = null;
if(is_array($pin_array)) {
if(count($pin_array)) {
foreach ($pin_array as $pin) {
//setup data
$image_id = $pin->options->pin_id;
$image_data = ( isset($pin->data->images->originals) ) ? $pin->data->images->originals : $pin->data->images->orig;
$pin_url = 'http://pinterest.com/pin/' . $image_id . '/';
$original_url = $pin->data->link;
$video = $pin->data->is_video;
array_push($pin_data_array, array(
"id" => $image_id,
"image" => $image_data,
"pin_link" => $pin_url,
"orig_link" => $original_url,
"video_flag" => $video,
));
}
$bookmarks = reset($curl_result->module->tree->resource->options->bookmarks);
} else {
$pin_data_array = false;
}
}
// recurse until we're done
if( !($pin_data_array === false) && !is_null($bookmarks) ) {
// more pins to get
$more_pins = $this->get_tagged_pins($search_str, $limit, $bookmarks, ++$page);
if( !($more_pins === false) ) $pin_data_array = array_merge($pin_data_array, $more_pins);
return $pin_data_array;
}
// end of recursion
return false;
}
} // end class Skrivener_Pins
} // end if
/**
* Debug/Demo Code
* delete or comment this section for production
*/
// output headers to control how the content displays
// header("Content-Type: application/json");
header("Content-Type: text/plain");
// header("Content-Type: text/html");
// define search term
// $tag = "vader";
$tag = "haemolytic";
// $tag = "qjkjgjerbjjkrekhjk";
if(class_exists('Skrivener_Pins')) {
// instantiate the class
$pin_handler = new Skrivener_Pins();
// get pins, pinterest returns 25 per batch, function pages through this recursively, pass in limit to
// override default limit on number of pages to retrieve, avoid high limits (eg. limit of 20 * 25 pins/page = 500 pins to pull
// and 20 separate calls to Pinterest)
$pins1 = $pin_handler->get_tagged_pins($tag, 2);
// display the pins for demo purposes
echo '<h1>Images on Pinterest mentioning "' . $tag . '"</h1>' . "\n";
if( $pins1 != false ) {
echo '<p><em>' . count($pins1) . ' images found.</em></p>' . "\n";
skrivener_dump_images($pins1, 5);
} else {
echo '<p><em>No images found.</em></p>' . "\n";
}
}
// demo function, dumps images in array to html img tags, can pass limit to only display part of array
function skrivener_dump_images($pin_array, $limit = false) {
if(is_array($pin_array)) {
if($limit) $pin_array = array_slice($pin_array, -($limit));
foreach ($pin_array as $pin) {
echo '<img src="' . $pin['image']->url . '" width="' . $pin['image']->width . '" height="' . $pin['image']->height . '" >' . "\n";
}
}
}
?>
如果您在使其适应您的特定终点时遇到问题，请告诉我。 Apols 对于代码中的任何草率之处，它最初并没有投入生产。
