Add answers

6 files changed, 125 insertions, 6 deletions

diff --git a/.gitignore b/.gitignore
index 668dbbd..f1e0d77 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,5 @@
 private/ratelimiting/*
 private/cache/*
 private/db.json
-private/dictionary.json
\ No newline at end of file
+private/dictionary.json
+private/keys/*
\ No newline at end of file
diff --git a/.idea/sshConfigs.xml b/.idea/sshConfigs.xml
index 26053e5..66ef29d 100644
--- a/.idea/sshConfigs.xml
+++ b/.idea/sshConfigs.xml
@@ -2,7 +2,7 @@
 <project version="4">
   <component name="SshConfigs">
     <configs>
-      <sshConfig authType="OPEN_SSH" host="minteck.org" id="319e7a2c-5091-4381-a0bc-0aad15d58f41" port="22" nameFormat="DESCRIPTIVE" username="root" useOpenSSHConfig="true" />
+      <sshConfig authType="OPEN_SSH" host="minteck.org" id="319e7a2c-5091-4381-a0bc-0aad15d58f41" port="22465" nameFormat="DESCRIPTIVE" username="root" useOpenSSHConfig="true" />
     </configs>
   </component>
 </project>
\ No newline at end of file
diff --git a/.idea/webServers.xml b/.idea/webServers.xml
index 933b983..e9b027b 100644
--- a/.idea/webServers.xml
+++ b/.idea/webServers.xml
@@ -3,7 +3,7 @@
   <component name="WebServers">
     <option name="servers">
       <webServer id="4ddeb4db-477c-482b-8bc1-be8e25957b40" name="Familine">
-        <fileTransfer accessType="SFTP" host="minteck.org" port="22" sshConfigId="319e7a2c-5091-4381-a0bc-0aad15d58f41" sshConfig="root@minteck.org:22 agent" authAgent="true">
+        <fileTransfer accessType="SFTP" host="minteck.org" port="22465" sshConfigId="319e7a2c-5091-4381-a0bc-0aad15d58f41" sshConfig="root@minteck.org:22465 agent" authAgent="true">
           <advancedOptions>
             <advancedOptions dataProtectionLevel="Private" keepAliveTimeout="0" passiveMode="true" shareSSLContext="true" />
           </advancedOptions>
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..492a3d9
--- /dev/null
+++ b/README.md
@@ -0,0 +1,3 @@
+# WolfEye
+
+* Put your WolframAlpha AppID in the `/private/keys/wolfram` file.
\ No newline at end of file
diff --git a/assets/instant.js b/assets/instant.js
index 439daab..bc643ab 100644
--- a/assets/instant.js
+++ b/assets/instant.js
@@ -8,9 +8,25 @@
     ));
 
     document.getElementById("details").innerHTML = "<small id='details-source'>from <a id='details-source-link' href='https://duckduckgo.com' target='_blank'>DuckDuckGo</a>:</small><p>" + instant.Abstract + "</p><p><i>— <a href='" + instant.AbstractURL + "' id='details-data-link' target='_blank'>" + instant.AbstractSource + "</a></i></p>";
-    if (instant.Abstract.trim() !== "") document.getElementById("details").style.display = "block";
-    if (instant.Abstract.trim() !== "") document.getElementById("results").classList.add("with-details");
-    if (instant.Abstract.trim() !== "") try {document.getElementsByClassName("dym-section")[0].outerHTML = ""; } catch (e) {}
+
+    if (instant.Abstract.trim() !== "") {
+        document.getElementById("details").style.display = "block";
+        document.getElementById("results").classList.add("with-details");
+        try {document.getElementsByClassName("dym-section")[0].outerHTML = ""; } catch (e) {}
+    } else {
+        answer = (await (
+                    await (
+                        await window.fetch("/ratelimited/answer.php?q=" + query)
+                    ).blob()
+                ).text()
+            )
+        if (answer.trim() !== "Wolfram|Alpha did not understand your input" && answer.trim() !== "No short answer available") {
+            document.getElementById("details").innerHTML = "<small id='details-source'>from <a id='details-source-link' href='https://www.wolframalpha.com/input/?i=" + encodeURI(query) + "' target='_blank'>Wolfram|Alpha</a>:</small><p>" + answer + "</p><p><details><summary style='cursor:pointer;'>Disclaimer</summary>This information is provided by Wolfram|Alpha. Results and information from this site are not a certified or definitive source of information that can be relied on for legal, financial, medical, life-safety or any other critical purposes.</details></p>";
+            document.getElementById("details").style.display = "block";
+            document.getElementById("results").classList.add("with-details");
+            try {document.getElementsByClassName("dym-section")[0].outerHTML = ""; } catch (e) {}
+        }
+    }
 
     if (!instant._WolfEye_External) {
         try { document.getElementById("details-source").innerHTML = "&nbsp;" } catch (e) {}
diff --git a/ratelimited/answer.php b/ratelimited/answer.php
new file mode 100644
index 0000000..8bc9707
--- /dev/null
+++ b/ratelimited/answer.php
@@ -0,0 +1,99 @@
+<?php
+
+if (isset($_GET['q'])) {
+    $query = strtolower(substr($_GET['q'], 0, 200));
+    $query = preg_replace("/[^A-Za-z0-9 ]/", '', preg_replace("/[\.]/", ' ', $query));
+} else {
+    header("Location: /");
+    die();
+}
+
+$addr = sha1($_SERVER['REMOTE_ADDR']);
+$cacheOnly = false;
+$rl = [
+    "local" => -1,
+    "global" => -1,
+    "blocked" => false
+];
+
+if (!file_exists($_SERVER['DOCUMENT_ROOT'] . "/private/ratelimiting/" . $addr)) {
+    file_put_contents($_SERVER['DOCUMENT_ROOT'] . "/private/ratelimiting/" . $addr, "1|" . date('YmdHi'));
+} else {
+    $requests = (int)explode("|", file_get_contents($_SERVER['DOCUMENT_ROOT'] . "/private/ratelimiting/" . $addr))[0];
+    $date = explode("|", file_get_contents($_SERVER['DOCUMENT_ROOT'] . "/private/ratelimiting/" . $addr))[1];
+    if ($date === date('YmdHi')) {
+        $requests++;
+        if ($requests > 3) {
+            $cacheOnly = true;
+            $rl["blocked"] = true;
+        }
+        file_put_contents($_SERVER['DOCUMENT_ROOT'] . "/private/ratelimiting/" . $addr, $requests . "|" . date('YmdHi'));
+    } else {
+        file_put_contents($_SERVER['DOCUMENT_ROOT'] . "/private/ratelimiting/" . $addr, "1|" . date('YmdHi'));
+    }
+
+    $rl["local"] = $requests;
+}
+
+if (!file_exists($_SERVER['DOCUMENT_ROOT'] . "/private/ratelimiting/_global")) {
+    file_put_contents($_SERVER['DOCUMENT_ROOT'] . "/private/ratelimiting/_global", "1|" . date('YmdHi'));
+} else {
+    $requests = (int)explode("|", file_get_contents($_SERVER['DOCUMENT_ROOT'] . "/private/ratelimiting/_global"))[0];
+    $date = explode("|", file_get_contents($_SERVER['DOCUMENT_ROOT'] . "/private/ratelimiting/_global"))[1];
+    if ($date === date('YmdHi')) {
+        $requests++;
+        if ($requests >= 20) {
+            $cacheOnly = true;
+            $rl["blocked"] = true;
+        }
+        file_put_contents($_SERVER['DOCUMENT_ROOT'] . "/private/ratelimiting/_global", $requests . "|" . date('YmdHi'));
+    } else {
+        file_put_contents($_SERVER['DOCUMENT_ROOT'] . "/private/ratelimiting/_global", "1|" . date('YmdHi'));
+    }
+
+    $rl["global"] = $requests;
+}
+
+if (!file_exists($_SERVER['DOCUMENT_ROOT'] . "/private/ratelimiting/_month")) {
+    file_put_contents($_SERVER['DOCUMENT_ROOT'] . "/private/ratelimiting/_month", "1|" . date('Ym'));
+} else {
+    $requests = (int)explode("|", file_get_contents($_SERVER['DOCUMENT_ROOT'] . "/private/ratelimiting/_month"))[0];
+    $date = explode("|", file_get_contents($_SERVER['DOCUMENT_ROOT'] . "/private/ratelimiting/_month"))[1];
+    if ($date === date('Ym')) {
+        $requests++;
+        if ($requests >= 1990) {
+            $cacheOnly = true;
+            $rl["blocked"] = true;
+        }
+        file_put_contents($_SERVER['DOCUMENT_ROOT'] . "/private/ratelimiting/_month", $requests . "|" . date('Ym'));
+    } else {
+        file_put_contents($_SERVER['DOCUMENT_ROOT'] . "/private/ratelimiting/_month", "1|" . date('Ym'));
+    }
+
+    $rl["monthly"] = $requests;
+}
+
+header("Content-Type: text/plain");
+$text = urlencode($query);
+
+if (file_exists($_SERVER["DOCUMENT_ROOT"] . "/private/answers/" . str_replace(" ", "_", $query))) {
+    $ds = "local";
+    $data = file_get_contents($_SERVER["DOCUMENT_ROOT"] . "/private/answers/" . str_replace(" ", "_", $query));
+} else if (file_exists($_SERVER["DOCUMENT_ROOT"] . "/private/cache/answer_" . str_replace(" ", "_", $query))) {
+    $ds = "cache";
+    $data = file_get_contents($_SERVER["DOCUMENT_ROOT"] . "/private/cache/answer_" . str_replace(" ", "_", $query));
+} else {
+    if ($cacheOnly) {
+        die();
+    } else {
+        $ds = "online";
+        $ch = curl_init();
+        curl_setopt($ch, CURLOPT_URL, "https://api.wolframalpha.com/v1/result?appid=" . urlencode(trim(file_get_contents($_SERVER['DOCUMENT_ROOT'] . "/private/keys/wolfram"))) . "&i=" . urlencode($query));
+        curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
+        $data = curl_exec($ch);
+        curl_close($ch);
+        file_put_contents($_SERVER["DOCUMENT_ROOT"] . "/private/cache/answer_" . str_replace(" ", "_", $query), $data);
+    }
+}
+
+die($data);
\ No newline at end of file