Merge pull request #8 from kvazar-network/sqlite

Merge Sqlite updates into the Master branch

README.md

@@ -0,0 +1,50 @@
+<<<<<<< HEAD
+# kvazar-network webapp
+Web-oriented content exploring platform for Kevacoin Blockchain
+
+### requirements
+```
+php-8^
+php-curl
+php-mbstring
+php-sqlite3
+php-pdo
+php-bcmath
+php-gd
+```
+#### database
+
+https://github.com/kvazar-network/database
+
+##### MySQL
+
+https://github.com/kvazar-network/webapp/tree/master
+
+##### SQLite
+
+https://github.com/kvazar-network/webapp/tree/sqlite
+
+#### crontab
+
+```
+0 0 * * * /path-to/php /path-to/crontab/sitemap.php > /dev/null 2>&1
+```
+
+### nginx sef_mode example
+
+```
+location / {
+  try_files $uri $uri/ =404 @sef;
+}
+
+location @sef {
+  rewrite ^(/.*)$ /?$1 last;
+}
+```
+
+### examples
+
+#### yggdrasil
+[http://[203:9fd0:95df:54d7:29db:5ee1:fe2d:95c7]](http://[203:9fd0:95df:54d7:29db:5ee1:fe2d:95c7])
+=======
+>>>>>>> master

config-default.php

@@ -6,14 +6,16 @@ ini_set('display_startup_errors', '1');
 error_reporting(E_ALL);
 
 // Application
-define('BASE_URL', 'https://kvazar.today');
+define('BASE_URL', 'https://kvazar.today/');
 define('PAGE_LIMIT', 10);
-define('SEF_MODE', true);
 define('CACHE_ENABLED', false);
 
+define('TRENDS_ENABLED', false); // alpha
+define('TRENDS_SECONDS_OFFSET', 2592000);
+define('TRENDS_MIN_LENGHT', 4);
+define('TRENDS_LIMIT', 40);
+
 // Database
-define('DB_HOST', 'localhost');
+define('DB_NAME', '../kvazar.sqlite');
-define('DB_PORT', '3306');
-define('DB_NAME', '');
 define('DB_USERNAME', '');
 define('DB_PASSWORD', '');

crontab/sitemap.php

@@ -1,9 +1,9 @@
 <?php
 
 require_once(dirname(__FILE__) . '/../config.php');
-require_once(dirname(__FILE__) . '/../library/mysql.php');
+require_once(dirname(__FILE__) . '/../library/sqlite.php');
 
-$db = new MySQL();
+$db = new SQLite(DB_NAME, DB_USERNAME, DB_PASSWORD);
 
 // Generate url sets
 $transaction  = '<?xml version="1.0" encoding="UTF-8"?>';
@@ -18,12 +18,12 @@ $transactions = [];
 foreach ($db->getData(false, false, false, 0, 1000000) as $value) {
 
   if (!in_array($value['namehash'], $namespaces)) {
-    $namespace .= '<loc>' . BASE_URL . '/' . $value['namehash'] . '</loc>';
+    $namespace .= '<loc>' . BASE_URL . $value['namehash'] . '</loc>';
   }
 
 
   if (!in_array($value['namehash'], $transactions)) {
-    $transaction .= '<loc>' . BASE_URL . '/' . $value['txid'] . '</loc>';
+    $transaction .= '<loc>' . BASE_URL . $value['txid'] . '</loc>';
   }
 
   $namespaces[]   = $value['namehash'];
@@ -47,10 +47,10 @@ fclose($handle);
 $sitemap  = '<?xml version="1.0" encoding="UTF-8"?>';
 $sitemap .= '<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">';
 $sitemap .= '  <sitemap>';
-$sitemap .= '    <loc>' . BASE_URL . '/sitemap.namespace.xml</loc>';
+$sitemap .= '    <loc>' . BASE_URL . 'sitemap.namespace.xml</loc>';
 $sitemap .= '  </sitemap>';
 $sitemap .= '  <sitemap>';
-$sitemap .= '    <loc>' . BASE_URL . '/sitemap.transaction.xml</loc>';
+$sitemap .= '    <loc>' . BASE_URL . 'sitemap.transaction.xml</loc>';
 $sitemap .= '  </sitemap>';
 $sitemap .= '</sitemapindex>';
 

library/icon.php

@@ -165,7 +165,7 @@ final class Icon {
 
     for ($i = 0; $i < count($shape); $i++)
       $shape[$i] = $shape[$i] * $this->_spriteZ;
-    imagefilledpolygon($sprite, $shape, count($shape) / 2, $fg);
+    imagefilledpolygon($sprite, $shape, $fg);
 
     for ($i = 0; $i < $rotation; $i++)
       $sprite = imagerotate($sprite, 90, $bg);
@@ -215,7 +215,7 @@ final class Icon {
     for ($i = 0; $i < count($shape); $i++)
       $shape[$i] = $shape[$i] * $this->_spriteZ;
     if (count($shape) > 0)
-      imagefilledpolygon($sprite, $shape, count($shape) / 2, $fg);
+      imagefilledpolygon($sprite, $shape, $fg);
 
     return $sprite;
   }

library/sqlite.php

@@ -0,0 +1,268 @@
+<?php
+
+class SQLite {
+
+  private PDO $_db;
+
+  public function __construct(string $database, string $username, string $password) {
+
+    try {
+
+      $this->_db = new PDO('sqlite:' . $database, $username, $password);
+      $this->_db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
+      $this->_db->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_ASSOC);
+      $this->_db->setAttribute(PDO::ATTR_TIMEOUT, 600);
+
+      $this->_db->query('
+        CREATE TABLE IF NOT EXISTS "namespace"(
+          "nameSpaceId" INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL CHECK("nameSpaceId">=0),
+          "timeIndexed" INTEGER NOT NULL CHECK("timeIndexed">=0),
+          "hash" CHAR(34) NOT NULL,
+          CONSTRAINT "hash_UNIQUE"
+            UNIQUE("hash")
+        )
+      ');
+
+      $this->_db->query('
+        CREATE TABLE IF NOT EXISTS "block"(
+          "blockId" INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL CHECK("blockId">=0),
+          "timeIndexed" INTEGER NOT NULL CHECK("timeIndexed">=0),
+          "lostTransactions" INTEGER NOT NULL CHECK("lostTransactions">=0)
+        )
+      ');
+
+      $this->_db->query('
+        CREATE TABLE IF NOT EXISTS "data"(
+          "dataId" INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL CHECK("dataId">=0),
+          "nameSpaceId" INTEGER NOT NULL CHECK("nameSpaceId">=0),
+          "blockId" INTEGER NOT NULL CHECK("blockId">=0),
+          "time" INTEGER NOT NULL CHECK("time">=0),
+          "timeIndexed" INTEGER NOT NULL CHECK("timeIndexed">=0),
+          "size" INTEGER NOT NULL,
+          "ns" TEXT NOT NULL CHECK("ns" IN(\'0\', \'1\')),
+          "deleted" TEXT NOT NULL CHECK("deleted" IN(\'0\', \'1\')),
+          "txid" CHAR(64) NOT NULL,
+          "key" TEXT NOT NULL,
+          "value" TEXT NOT NULL,
+          CONSTRAINT "txid_UNIQUE"
+            UNIQUE("txid"),
+          CONSTRAINT "fk_data_namespace"
+            FOREIGN KEY("nameSpaceId")
+            REFERENCES "namespace"("nameSpaceId"),
+          CONSTRAINT "fk_data_block"
+            FOREIGN KEY("blockId")
+            REFERENCES "block"("blockId")
+        )
+
+      ');
+
+      $this->_db->query('CREATE INDEX IF NOT EXISTS "data.fk_data_namespase_idx" ON "data" ("nameSpaceId")');
+      $this->_db->query('CREATE INDEX IF NOT EXISTS "data.fk_data_block_idx" ON "data" ("blockId")');
+      $this->_db->query('CREATE INDEX IF NOT EXISTS "data.deleted_INDEX" ON "data" ("deleted")');
+      $this->_db->query('CREATE INDEX IF NOT EXISTS "data.ns_INDEX" ON "data" ("ns")');
+
+    } catch(PDOException $e) {
+      trigger_error($e->getMessage());
+    }
+  }
+
+  public function getNamespaceValueByNS(string $ns) {
+
+    try {
+
+      $query = $this->_db->prepare('SELECT `data`.`value` AS `value`
+
+                                           FROM `data`
+                                           JOIN `namespace` ON (`namespace`.`nameSpaceId` = `data`.`nameSpaceId`)
+
+                                           WHERE `namespace`.`hash` = ?
+                                             AND `data`.`ns`        = "1"
+                                             -- AND `data`.`deleted`   = "0" --
+
+                                           ORDER BY `data`.`blockId` DESC
+
+                                           LIMIT 1');
+
+      $query->execute([$ns]);
+
+      $result = $query->fetch();
+
+      return $result ? $result['value'] : '';
+
+    } catch(PDOException $e) {
+
+      trigger_error($e->getMessage());
+      return false;
+    }
+  }
+
+  public function getNamespaceHashByTX(string $txid) {
+
+    try {
+
+      $query = $this->_db->prepare('SELECT `namespace`.`hash`
+
+                                           FROM `namespace`
+                                           JOIN `data` ON (`data`.`nameSpaceId` = `namespace`.`nameSpaceId`)
+
+                                           WHERE `data`.`txid` = ?');
+
+      $query->execute([$txid]);
+
+      return $query->rowCount() ? $query->fetch()['hash'] : '';
+
+    } catch(PDOException $e) {
+
+      trigger_error($e->getMessage());
+      return false;
+    }
+  }
+
+  public function getData(string $namehash = '', string $txid = '', string $search = '', int $start = 0, int $limit = 10) {
+
+    try {
+
+      if ($txid) {
+
+        $query = $this->_db->prepare('SELECT `block`.`blockId` AS `block`,
+                                             `namespace`.`hash` AS `namehash`,
+                                             `data`.`time` AS `time`,
+                                             `data`.`key` AS `key`,
+                                             `data`.`value` AS `value`,
+                                             `data`.`txid` AS `txid`
+
+                                             FROM `data`
+                                             JOIN `block` ON (`block`.`blockId` = `data`.`blockId`)
+                                             JOIN `namespace` ON (`namespace`.`nameSpaceId` = `data`.`nameSpaceId`)
+
+                                             WHERE `data`.`txid`    = ?
+                                               AND `data`.`ns`      = "0"
+                                               -- AND `data`.`deleted` = "0" --
+
+                                             ORDER BY `block`.`blockId` DESC
+
+                                             LIMIT ' . (int) $start . ',' . (int) $limit);
+
+        $query->execute([$txid]);
+
+      } else if ($namehash) {
+
+        $query = $this->_db->prepare('SELECT `block`.`blockId` AS `block`,
+                                             `namespace`.`hash` AS `namehash`,
+                                             `data`.`time` AS `time`,
+                                             `data`.`key` AS `key`,
+                                             `data`.`value` AS `value`,
+                                             `data`.`txid` AS `txid`
+
+                                             FROM `data`
+                                             JOIN `block` ON (`block`.`blockId` = `data`.`blockId`)
+                                             JOIN `namespace` ON (`namespace`.`nameSpaceId` = `data`.`nameSpaceId`)
+
+                                             WHERE `namespace`.`hash` = ?
+                                               AND `data`.`ns`        = "0"
+                                               -- AND `data`.`deleted`   = "0" --
+
+                                             ORDER BY `block`.`blockId` DESC
+
+                                             LIMIT ' . (int) $start . ',' . (int) $limit);
+
+        $query->execute([$namehash]);
+
+      } else if ($search) {
+
+        $query = $this->_db->prepare('SELECT `block`.`blockId` AS `block`,
+                                             `namespace`.`hash` AS `namehash`,
+                                             `data`.`time` AS `time`,
+                                             `data`.`key` AS `key`,
+                                             `data`.`value` AS `value`,
+                                             `data`.`txid` AS `txid`
+
+                                             FROM `data`
+                                             JOIN `block` ON (`block`.`blockId` = `data`.`blockId`)
+                                             JOIN `namespace` ON (`namespace`.`nameSpaceId` = `data`.`nameSpaceId`)
+
+                                             WHERE (`data`.`key`       LIKE :search
+                                                OR  `data`.`value`     LIKE :search
+                                                OR  `block`.`blockId`  LIKE :search
+                                                OR  `namespace`.`hash` LIKE :search
+                                                OR  `data`.`txid`      LIKE :search)
+
+                                               AND  `data`.`ns`      = "0"
+                                               -- AND  `data`.`deleted` = "0" --
+
+                                             ORDER BY `block`.`blockId` DESC
+
+                                             LIMIT ' . (int) $start . ',' . (int) $limit);
+
+        $query->bindValue(':search', '%' . $search . '%', PDO::PARAM_STR);
+
+        $query->execute();
+
+      } else {
+
+        $query = $this->_db->prepare('SELECT `block`.`blockId` AS `block`,
+                                             `namespace`.`hash` AS `namehash`,
+                                             `data`.`time` AS `time`,
+                                             `data`.`key` AS `key`,
+                                             `data`.`value` AS `value`,
+                                             `data`.`txid` AS `txid`
+
+                                             FROM `data`
+                                             JOIN `block` ON (`block`.`blockId` = `data`.`blockId`)
+                                             JOIN `namespace` ON (`namespace`.`nameSpaceId` = `data`.`nameSpaceId`)
+
+                                             WHERE `data`.`ns`      = "0"
+                                               -- AND `data`.`deleted` = "0" --
+
+                                             ORDER BY `block`.`blockId` DESC
+
+                                             LIMIT ' . (int) $start . ',' . (int) $limit);
+
+        $query->execute();
+      }
+
+      $result = $query->fetchAll();
+
+      return $result ? $result : [];
+
+    } catch(PDOException $e) {
+
+      trigger_error($e->getMessage());
+      return false;
+    }
+  }
+
+  public function getTrends(int $offset = 0) {
+
+    try {
+
+      $query = $this->_db->prepare('SELECT `block`.`blockId` AS `block`,
+                                            `namespace`.`hash` AS `namehash`,
+                                            `data`.`time` AS `time`,
+                                            `data`.`key` AS `key`,
+                                            `data`.`value` AS `value`,
+                                            `data`.`txid` AS `txid`
+
+                                            FROM `data`
+                                            JOIN `block` ON (`block`.`blockId` = `data`.`blockId`)
+                                            JOIN `namespace` ON (`namespace`.`nameSpaceId` = `data`.`nameSpaceId`)
+
+                                            WHERE `data`.`ns`      = "0"
+                                            AND   `data`.`time`    >= ' . (int) $offset . '
+                                              -- AND `data`.`deleted` = "0" --
+
+                                            ORDER BY `block`.`blockId` DESC');
+
+      $query->execute();
+
+      $result = $query->fetchAll();
+
+      return $result ? $result : [];
+
+    } catch(PDOException $e) {
+
+      trigger_error($e->getMessage());
+      return false;
+    }
+  }
+}

public/css/app.css

@@ -12,8 +12,8 @@ button::-moz-focus-inner {
 
 input, button {
   opacity: 0.8;
-  color: #18102d;
+  color: #000;
-  background: #BFBACC;
+  background: #ABA6B7;
   border: 0;
   border-radius: 3px;
   height: 18px;
@@ -23,8 +23,8 @@ input, button {
 }
 
 body {
-  color: #E8E8E8;
+  color: #BFBACC;
-  background-color: #18102d;
+  background-color: #000;
   font-family: Sans-Serif, Arial;
   font-size: 14px;
   font-weight: normal;
@@ -32,12 +32,7 @@ body {
 }
 
 a {
-  color: #BFBACC;
+  color: #ABA6B7;
-  text-decoration: none;
-}
-
-a {
-  color: #BFBACC;
   text-decoration: none;
   -moz-transition: all .5s ease-in;
   -o-transition: all .5s ease-in;
@@ -47,7 +42,7 @@ a {
 }
 
 a:hover {
-  color: #E8E8E8;
+  color: #BFBACC;
   -webkit-transition: all .5s ease-in; /* issue #2 */
 }
 
@@ -96,7 +91,7 @@ img:hover {
 
 .b-g::before {
   content: "";
-  background-image: linear-gradient(to left, #9B94BF, #18102d);
+  background-image: linear-gradient(to left, #9B94BF, #000);
   height: 1px;
   width: 50%;
   max-width: 360px;
@@ -105,7 +100,7 @@ img:hover {
 
 .b-g::after {
   content: "";
-  background-image: linear-gradient(to right, #9B94BF, #18102d);
+  background-image: linear-gradient(to right, #9B94BF, #000);
   height: 1px;
   width: 50%;
   max-width: 360px;
@@ -127,7 +122,7 @@ img:hover {
 .c-1:active,
 .c-1:visited,
 .c-1:hover {
-  color: #ABA6B7;
+  color: #BFBACC;
 }
 
 .c-2,

public/index.php

@@ -0,0 +1,174 @@
+<<<<<<< HEAD
+<?php
+
+require_once('../config.php');
+require_once('../library/icon.php');
+require_once('../library/sqlite.php');
+
+$query = isset($_GET['q']) ? preg_replace('/[^\w\s]+/u', '', urldecode($_GET['q'])) : '';
+$ns    = '';
+$tx    = '';
+$page  = 0;
+
+if (isset($_SERVER['REQUEST_URI'])) {
+
+  $q = explode('/', $_SERVER['REQUEST_URI']);
+
+  if (isset($q[1])) {
+    if ($q[1] == 'rss') {
+      $rss = true;
+    } else if (strlen($q[1]) == 34) {
+      $ns = preg_replace('/[^a-zA-Z0-9]+/', '', $q[1]);
+    } else if (strlen($q[1]) == 64) {
+      $tx = preg_replace('/[^a-zA-Z0-9]+/', '', $q[1]);
+    } else if (preg_match('/[0-9]+/', $q[1])) {
+      $page = (int) $q[1];
+    }
+  }
+
+  if (isset($q[2])) {
+    if ($q[2] == 'rss') {
+      $rss = true;
+    } else if (strlen($q[2]) == 34) {
+      $ns = preg_replace('/[^a-zA-Z0-9]+/', '', $q[2]);
+    } else if (preg_match('/[0-9]+/', $q[2])) {
+      $page = (int) $q[2];
+    }
+  }
+}
+
+if ($query) {
+  $rss = isset($_GET['rss']) ? true : false;
+}
+
+if ($page > 0) {
+  $limit = PAGE_LIMIT * $page - PAGE_LIMIT;
+} else {
+  $limit = PAGE_LIMIT * $page;
+}
+
+$db = new SQLite(DB_NAME, DB_USERNAME, DB_PASSWORD);
+
+if ($ns) {
+
+  $namespaceHash  = $ns;
+  $namespaceValue = $db->getNamespaceValueByNS($ns);
+
+} else if ($tx) {
+
+  $namespaceHash  = $db->getNamespaceHashByTX($tx);
+  $namespaceValue = $db->getNamespaceValueByNS($namespaceHash);
+
+} else {
+
+  $namespaceHash  = false;
+  $namespaceValue = false;
+}
+
+$trends = [];
+
+if (TRENDS_ENABLED) {
+
+  foreach ($db->getTrends(time() - TRENDS_SECONDS_OFFSET) as $value) {
+
+    foreach ((array) explode(' ', strip_tags(html_entity_decode(nl2br(trim($value['key']))))) as $trend) {
+
+      if (strlen($trend) >= TRENDS_MIN_LENGHT) {
+
+        $trend = strtolower($trend);
+
+        if (isset($trends[$trend])) {
+          $trends[$trend]++;
+        } else {
+          $trends[$trend] = 1;
+        }
+      }
+    }
+
+    foreach ((array) explode(' ', strip_tags(html_entity_decode(nl2br(trim($value['value']))))) as $trend) {
+
+      if (strlen($trend) >= TRENDS_MIN_LENGHT) {
+
+        $trend = strtolower($trend);
+
+        if (isset($trends[$trend])) {
+          $trends[$trend]++;
+        } else {
+          $trends[$trend] = 1;
+        }
+      }
+    }
+  }
+
+  arsort($trends);
+
+  $trends = array_slice($trends, 0, TRENDS_LIMIT);
+
+  $trends = array_flip($trends);
+}
+
+$data = [];
+foreach ($db->getData($ns, $tx, $query, $limit, PAGE_LIMIT) as $value) {
+  $data[] = [
+    'namehash' => $value['namehash'],
+    'block'    => $value['block'],
+    'txid'     => $value['txid'],
+    'time'     => date(($rss ? 'r' : 'd-m-Y H:i'), $value['time']),
+    'key'      => $rss ? htmlentities(strip_tags(trim($value['key'])), ENT_XML1) : nl2br(trim($value['key'])),
+    'value'    => $rss ? htmlentities(strip_tags(trim($value['value'])), ENT_XML1): nl2br(trim($value['value'])),
+  ];
+}
+
+$older = false;
+$newer = false;
+
+if (!in_array($page, [0, 1])) {
+  if ($page == 2) {
+    $newer = ($ns ? $ns : '');
+  } else {
+    $newer = ($ns ? $ns . '/' . ($page - 1) : ($page - 1));
+  }
+
+  if ($query) {
+    $newer = $newer . '?q=' . $query;
+  }
+}
+
+if ($data) {
+  if (in_array($page, [0, 1])) {
+    $older = ($ns ? $ns . '/2' : '2');
+  } else {
+    $older = ($ns ? $ns . '/' . ($page + 1) : ($page + 1));
+  }
+
+  if ($query) {
+    $older = $older . '?q=' . $query;
+  }
+}
+
+if ($ns) {
+  if ($page) {
+    $hrefThisPage = $ns . '/' . $page;
+  } else {
+    $hrefThisPage = $ns;
+  }
+} else {
+  if ($page) {
+    $hrefThisPage = $page;
+  } else {
+    $hrefThisPage = '';
+  }
+}
+
+if ($rss) {
+
+  header('Content-type: application/xml');
+  require_once('rss.phtml');
+
+} else {
+
+  require_once('index.phtml');
+
+}
+=======
+>>>>>>> master

public/index.phtml

@@ -1,11 +1,11 @@
 <!DOCTYPE html>
 <html>
 <head>
-  <link rel="stylesheet" type="text/css" href="/css/app.css?v=4" />
+  <link rel="stylesheet" type="text/css" href="<?php echo BASE_URL; ?>css/app.css?v=9" />
   <meta charset="UTF-8" />
   <meta name="description" content="Open Source Content Exploring Platform for Kevacoin Blockchain" />
   <?php if ($namespaceHash) { ?>
-    <link rel="icon" type="image/png" href="/image.php?hash=<?php echo $namespaceHash; ?>&radius=30" />
+    <link rel="icon" type="image/png" href="<?php echo BASE_URL; ?>image.php?hash=<?php echo $namespaceHash; ?>&radius=30" />
   <?php } ?>
   <?php if ($ns) { ?>
     <?php if ($page) { ?>
@@ -20,6 +20,8 @@
       <meta name="robots" content="noindex,follow" />
     <?php } else if ($tx) { ?>
       <title><?php echo $tx && isset($data[0]['key']) ? $data[0]['key'] : $tx; ?> | <?php echo ($namespaceValue ? $namespaceValue : ($namespaceHash ? $namespaceHash : false)); ?> | KVAZAR</title>
+      <?php } else if ($query) { ?>
+      <title>KVAZAR | SEARCH | <?php echo $query; ?></title>
     <?php } else { ?>
       <title>KVAZAR | TODAY</title>
     <?php } ?>
@@ -29,11 +31,11 @@
   <div class="t-center px-16 pt-54">
     <div class="mx-a mw-560 px-16">
       <div class="mb-20">
-        <a class="logo f-s-20 c-0" href="/">KVAZAR</a>
+        <a class="logo f-s-20 c-0" href="<?php echo BASE_URL; ?>">KVAZAR</a>
       </div>
       <?php if ($ns) { ?>
         <div class="mx-a mw-560 px-16 pb-16">
-          <img class="br-50 shine" src="/image.php?hash=<?php echo $ns; ?>" alt="<?php echo $ns; ?>" />
+          <img class="br-50 shine" src="<?php echo BASE_URL; ?>image.php?hash=<?php echo $ns; ?>" alt="<?php echo $ns; ?>" />
         </div>
       <?php } ?>
       <div class="mb-36 c-1"><?php echo $namespaceValue ? $namespaceValue : 'Observe Kevacoin Universe'; ?></div>
@@ -42,24 +44,30 @@
   <div class="t-center px-16 pb-36">
     <div class="b-g"></div>
   </div>
+  <?php if ($trends && !$ns && !$tx && !$page && !$q) { ?>
+  <div class="t-center px-16">
+    <div class="mx-a mw-560 px-16">
+    <?php foreach ($trends as $trend) { ?>
+      #<a href="<?php echo BASE_URL; ?>?q=<?php echo $trend; ?>"><?php echo $trend; ?></a>
+    <?php } ?>
+    </div>
+  </div>
+  <div class="t-center px-16 py-27">
+    <div class="b-g"></div>
+  </div>
+  <?php } ?>
   <?php foreach ($data as $item) { ?>
     <div class="t-center px-16">
       <div class="mx-a mw-560 px-16">
         <?php if (!$ns) { ?>
           <div class="mx-a mw-560 mb-16">
-            <?php if (SEF_MODE) { ?>
+            <a href="<?php echo BASE_URL; ?><?php echo $item['namehash']; ?>">
-              <a href="/<?php echo $item['namehash']; ?>">
+              <img class="br-50" src="<?php echo BASE_URL; ?>image.php?hash=<?php echo $item['namehash']; ?>" alt="<?php echo $item['namehash']; ?>" />
-                <img class="br-50" src="/image.php?hash=<?php echo $item['namehash']; ?>" alt="<?php echo $item['namehash']; ?>" />
+            </a>
-              </a>
-            <?php } else { ?>
-              <a href="/?ns=<?php echo $item['namehash']; ?>">
-                <img class="br-50" src="/image.php?hash=<?php echo $item['namehash']; ?>" alt="<?php echo $item['namehash']; ?>" />
-              </a>
-            <?php } ?>
           </div>
         <?php } ?>
         <?php if (!$tx) { ?>
-        <a class="d-block" href="/<?php echo (SEF_MODE ? $item['txid'] : '?tx=' . $item['txid']); ?>">
+        <a class="d-block" href="<?php echo BASE_URL; ?><?php echo $item['txid']; ?>">
         <?php } ?>
           <div class="f-s-16 mb-16 of-a">
             <?php echo $item['key']; ?>
@@ -80,23 +88,26 @@
   <?php if (!$tx && ($newer !== false || $older !== false)) { ?>
     <div class="t-center pt-16 pb-27">
       <?php if ($newer !== false) { ?>
-      <a href="/<?php echo $newer; ?>"<?php echo $newer ? ' rel="nofollow"' : false; ?>>newer</a>
+      <a href="<?php echo BASE_URL; ?><?php echo $newer; ?>"<?php echo $newer ? ' rel="nofollow"' : false; ?>>newer</a>
       <?php } ?>
       <?php if ($newer !== false && $older !== false) { ?>
       |
       <?php } ?>
       <?php if ($older !== false) { ?>
-      <a href="/<?php echo $older; ?>"<?php echo $older ? ' rel="nofollow"' : false; ?>>older</a>
+      <a href="<?php echo BASE_URL; ?><?php echo $older; ?>"<?php echo $older ? ' rel="nofollow"' : false; ?>>older</a>
       <?php } ?>
     </div>
   <?php } ?>
   <div class="t-center px-16 pb-27">
-    <form name="namespace" action="/" method="GET">
+    <form name="namespace" action="<?php echo BASE_URL; ?>" method="GET">
       <input class="p-8" type="text" name="q" value="<?php echo ($query ? $query : ''); ?>" placeholder="key, value, block, ns, txid" autocomplete="off" />
       <!--<button class="p-8 cursor-pointer" type="submit">Search</button>-->
     </form>
   </div>
   <div class="t-center px-16 pb-27">
+    <?php if (!$tx && !$page) { ?>
+      <div class="pb-16 f-s-12"><a href="<?php echo BASE_URL; ?><?php echo ($query ? '?q=' . $query . '&rss' : ($ns ? $ns . '/rss' : 'rss')); ?>" rel="nofollow">RSS</a></div>
+    <?php } ?>
     <div class="pb-16 f-s-12 c-1"><a href="https://github.com/kvazar-network/webapp">KVAZAR Webapp</a> is the content exploring platform for <a href="https://kevacoin.org">Kevacoin Blockchain</a>.</div>
     <div class="f-s-12 c-1">Sources distributed under the MIT License. Ownership of all content belongs to the authors.</div>
   </div>

public/rss.phtml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
+<channel>
+  <atom:link href="<?php echo BASE_URL; ?><?php echo ($ns ? $ns . '/rss' :
+                                                           ($query ? '?q=' . $query . '&amp;rss' : 'rss')); ?>" rel="self" type="application/rss+xml"></atom:link>
+  <title>KVAZAR - <?php echo ($namespaceValue ? $namespaceValue :
+                                               ($namespaceHash ? $namespaceHash :
+                                                                ($query ? 'SEARCH - ' . $query : 'TODAY'))); ?></title>
+  <description>Observe Kevacoin Universe</description>
+  <link><?php echo BASE_URL; ?><?php echo ($ns ? $ns : ($query ? '?q=' . $query : false)); ?></link>
+  <?php foreach ($data as $item) { ?>
+  <item>
+    <title><?php echo $item['key']; ?></title>
+    <guid><?php echo BASE_URL; ?><?php echo $item['txid']; ?></guid>
+    <pubDate><?php echo $item['time']; ?></pubDate>
+    <description><?php echo $item['value']; ?></description>
+    <link><?php echo BASE_URL; ?><?php echo $item['txid']; ?></link>
+  </item>
+  <?php } ?>
+</channel>
+</rss>