From 3725f1831d48c83b3f27b135d7715d15a4703a4b Mon Sep 17 00:00:00 2001
From: Minteck <contact@minteck.org>
Date: Sun, 12 Dec 2021 13:10:49 +0100
Subject: Make your luck shine!

---
 lucky/index.php | 196 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 196 insertions(+)
 create mode 100644 lucky/index.php

(limited to 'lucky')

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();
\ No newline at end of file
-- 
cgit