90 lines
3.3 KiB
PHP
90 lines
3.3 KiB
PHP
<?php
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/**
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* This action is used by the frontpage form search.
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* It finds a bridge based off of a user input url.
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* It uses bridges' detectParameters implementation.
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*/
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class FindfeedAction implements ActionInterface
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{
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public function execute(Request $request)
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{
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$url = $request->get('url');
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$format = $request->get('format');
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if (!$url) {
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return new Response('You must specify a url', 400);
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}
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if (!$format) {
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return new Response('You must specify a format', 400);
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}
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$bridgeFactory = new BridgeFactory();
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$results = [];
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foreach ($bridgeFactory->getBridgeClassNames() as $bridgeClassName) {
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if (!$bridgeFactory->isEnabled($bridgeClassName)) {
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continue;
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}
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$bridge = $bridgeFactory->create($bridgeClassName);
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$bridgeParams = $bridge->detectParameters($url);
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if ($bridgeParams === null) {
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continue;
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}
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// It's allowed to have no 'context' in a bridge (only a default context without any name)
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// In this case, the reference to the parameters are found in the first element of the PARAMETERS array
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$context = $bridgeParams['context'] ?? 0;
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$bridgeData = [];
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// Construct the array of parameters
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foreach ($bridgeParams as $key => $value) {
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// 'context' is a special case : it's a bridge parameters, there is no "name" for this parameter
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if ($key == 'context') {
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$bridgeData[$key]['name'] = 'Context';
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$bridgeData[$key]['value'] = $value;
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} else {
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$bridgeData[$key]['name'] = $this->getParameterName($bridge, $context, $key);
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$bridgeData[$key]['value'] = $value;
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}
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}
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$bridgeParams['bridge'] = $bridgeClassName;
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$bridgeParams['format'] = $format;
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$content = [
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'url' => './?action=display&' . http_build_query($bridgeParams),
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'bridgeParams' => $bridgeParams,
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'bridgeData' => $bridgeData,
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'bridgeMeta' => [
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'name' => $bridge::NAME,
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'description' => $bridge::DESCRIPTION,
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'parameters' => $bridge::PARAMETERS,
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'icon' => $bridge->getIcon(),
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],
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];
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$results[] = $content;
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}
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if ($results === []) {
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return new Response(Json::encode(['message' => 'No bridge found for given url']), 404, ['content-type' => 'application/json']);
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}
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return new Response(Json::encode($results), 200, ['content-type' => 'application/json']);
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}
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// Get parameter name in the actual context, or in the global parameter
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private function getParameterName($bridge, $context, $key)
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{
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if (isset($bridge::PARAMETERS[$context][$key]['name'])) {
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$name = $bridge::PARAMETERS[$context][$key]['name'];
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} else if (isset($bridge::PARAMETERS['global'][$key]['name'])) {
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$name = $bridge::PARAMETERS['global'][$key]['name'];
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} else {
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$name = 'Variable "' . $key . '" (No name provided)';
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}
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return $name;
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}
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}
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