diff options
Diffstat (limited to 'lucky/index.php')
| -rw-r--r-- | lucky/index.php | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/lucky/index.php b/lucky/index.php new file mode 100644 index 0000000..d320290 --- /dev/null +++ b/lucky/index.php @@ -0,0 +1,196 @@ +<?php + +$data = json_decode(file_get_contents($_SERVER['DOCUMENT_ROOT'] . "/private/db.json"), true); +$dict = json_decode(file_get_contents($_SERVER['DOCUMENT_ROOT'] . "/private/dictionary.json"), true); + +if (isset($_GET['q'])) { + $query = strtolower(substr($_GET['q'], 0, 200)); + $query = preg_replace("/[^A-Za-z0-9 ]/", '', preg_replace("/[\.]/", ' ', $query)); +} else { + header("Location: /"); + die(); +} + +if (trim($query) === "") { + header("Location: /"); + die(); +} + +// Autocorrect +$start_correct = microtime(true); +$fixed = false; +$fixes = []; +$fixesd = []; + +foreach (explode(" ", $query) as $item) { + $shortest = -1; + foreach ($dict as $word) { + + $lev = levenshtein($item, $word); + + if ($lev == 0) { + $closest = $word; + $shortest = 0; + + break; + } + + if ($lev <= $shortest || $shortest < 0) { + $closest = $word; + $shortest = $lev; + } + } + + if ($shortest !== 0 && $shortest < 15 && $item !== "wolfeye" && $item !== "eye") { + $fixed = true; + $fixes[] = str_replace($item, $closest, $query); + $fixesd[] = str_replace($item, "<b>$closest</b>", $query); + } + + if ($query === "google") { + $fixed = true; + $fixes[] = str_replace($item, "duckduckgo", $query); + $fixesd[] = str_replace($item, "<b>duckduckgo</b>", $query); + } + + if ($query === "microsoft") { + $fixed = true; + $fixes[] = str_replace($item, "redhat", $query); + $fixesd[] = str_replace($item, "<b>redhat</b>", $query); + } + + if ($query === "windows") { + $fixed = true; + $fixes[] = str_replace($item, "linux", $query); + $fixesd[] = str_replace($item, "<b>linux</b>", $query); + } + + if ($query === "apple") { + $fixed = true; + $fixes[] = str_replace($item, "raspberry", $query); + $fixesd[] = str_replace($item, "<b>raspberry</b>", $query); + } + + if ($query === "france") { + $fixed = true; + $fixes[] = str_replace($item, "hell", $query); + $fixesd[] = str_replace($item, "<b>hell</b>", $query); + } +} + +if ($fixed) { + echo("<div class='dym-section'>"); + if (count($fixes) > 1) { + echo("Showing results for \"$query\", did you mean:<ul>"); + foreach ($fixes as $i => $fix) { + echo("<li>\"<a class='dym-link' href='/search?q=$fix'>$fixesd[$i]</a>\"?</li>"); + } + echo("</ul>"); + } else { + echo("Showing results for \"$query\", did you mean \"<a class='dym-link' href='/search?q=$fixes[0]'>$fixesd[0]</a>\"?"); + } + echo("</div>"); +} +$elapsed_correct = microtime(true) - $start_correct; + +// Actual Search +$start_search = microtime(true); +$matches = []; +foreach ($data["entries"] as $id => $item) { + $avg = -1; + $aavg = []; + $iparsed = strtolower(substr($item["title"], 0, 200)); + $iparsed = preg_replace("/[^A-Za-z0-9 ]/", '', preg_replace("/[\.]/", ' ', $iparsed)); + $qwords = explode(" ", $query); + + if (trim($iparsed) !== "") { + foreach ($qwords as $qword) { + $sim = similar_text($iparsed, $qword, $perc); + if ($perc > 0) { + $aavg[] = $perc; + } + } + + if (count($aavg) > 0) { + $aavg = array_filter($aavg); + $avg = (array_sum($aavg) / count($aavg)) / 50 - 1; + $matches[] = [ + "id" => $id, + "relevance" => $avg + ]; + } + } + + $avg = -1; + $aavg = []; + $iparsed = strtolower(substr($item["url"], 0, 200)); + $iparsed = preg_replace("/[^A-Za-z0-9 ]/", '', preg_replace("/[\.]/", ' ', $iparsed)); + $qwords = explode(" ", $query); + + if (trim($iparsed) !== "") { + foreach ($qwords as $qword) { + $sim = similar_text($iparsed, $qword, $perc); + if ($perc > 0) { + $aavg[] = $perc; + } + } + + if (count($aavg) > 0) { + $aavg = array_filter($aavg); + $avg = (array_sum($aavg) / count($aavg)) / 50 - 1; + $matches[] = [ + "id" => $id, + "relevance" => $avg + ]; + } + } +} + +usort($matches, function($a, $b) { + return $a['relevance'] <=> $b['relevance']; +}); + +$matches = array_reverse($matches); + +$matches2 = []; +$prel = []; + +foreach($matches as $match) { + if (!isset($prel[(string)$match["relevance"]])) { + $prel[(string)$match["relevance"]] = [$match]; + } else { + $prel[(string)$match["relevance"]][] = $match; + } +} + +$elapsed_search = microtime(true) - $start_search; +$start_parse = microtime(true); +$entriesdom = []; +foreach($prel as $item => $items) { + $shortest = -1; + + foreach ($items as $word) { + $lev = levenshtein($query, $data["entries"][$word["id"]]["title"]); + + if ($lev == 0) { + $closest = $word["id"]; + $shortest = 0; + break; + } + + if ($lev <= $shortest || $shortest < 0) { + $closest = $word["id"]; + $shortest = $lev; + } + } + + $entriesdom[] = [ + "link" => "/out?q=" . $query . "&u=" . uniqid() . "&i=" . $closest, + "title" => $data["entries"][$closest]["title"], + "url" => $data["entries"][$closest]["url"], + "icon" => "/icon?q=" . $query . "&i=" . $closest, + ]; +} + +header("Location: " . $entriesdom[0]["link"]); +die();
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