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Add Regis caching

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This is very basic where I check the Regis table to see if a short link exists
If not, query the mysql server and pull that result into Regis as linkID and link
I might make some modifications to this
This commit is contained in:
alopexc0de 2014-07-20 19:42:00 -04:00
parent 064739de36
commit c02e6d6f28
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GPG Key ID: 48E847F18074C953
1 changed files with 21 additions and 10 deletions
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31
Website/index.php
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@ -12,8 +12,10 @@
$_SESSION['catch'] = $catchid.":".$catchVal; $_SESSION['catch'] = $catchid.":".$catchVal;
require('Include/PHP/db.php'); require('Include/PHP/db.php');
$redis = new Redis();
$redis->connect('127.0.0.1', 6379);
function followLink($shortdb, $link){ function followLink($shortdb, $redis, $link){
$link = $shortdb->real_escape_string(strtolower(stripslashes(strip_tags($link)))); $link = $shortdb->real_escape_string(strtolower(stripslashes(strip_tags($link))));
$link = str_replace('/', '', $link); $link = str_replace('/', '', $link);
@ -36,14 +38,23 @@
} }
} }
$sql = "SELECT * FROM `links` WHERE `shortlink` = '$link' LIMIT 1;"; // Try to find it in the redis db first, if not there, add it
if($result = $shortdb->query($sql)){
if($row = $result->fetch_assoc()){ $short = $redis->get($link);
$link = $row['link']; if (!$short) {
//header("location:$link"); $sql = "SELECT * FROM `links` WHERE `shortlink` = '$link' LIMIT 1;";
exit(5); // Stop script execution to save on resources if($result = $shortdb->query($sql)){
if($row = $result->fetch_assoc()){
$llink = $row['link'];
$redis->set($link, $llink);
echo $llink
//header("location:$link");
exit(5); // Stop script execution to save on resources
}
} }
}
} }
// exit codes: // exit codes:
@ -59,7 +70,7 @@
// This has been depreciated. Still here for backwards compatibility with existing links // This has been depreciated. Still here for backwards compatibility with existing links
if(!empty($_GET['l'])){ if(!empty($_GET['l'])){
followLink($shortdb, $_GET['l']); followLink($shortdb, $redis, $_GET['l']);
} }
// New way to check for valid short links, two characters shorter than the if statement above // New way to check for valid short links, two characters shorter than the if statement above
@ -70,7 +81,7 @@
if($key == "resolv"){ header("location:http://r.lob.li"); exit(12); } if($key == "resolv"){ header("location:http://r.lob.li"); exit(12); }
if($key == "about"){ header("location:http://a.lob.li"); exit(13); } if($key == "about"){ header("location:http://a.lob.li"); exit(13); }
followLink($shortdb, $key); followLink($shortdb, $redis, $key);
} }
?> ?>
<!DOCTYPE html> <!DOCTYPE html>