Pastes now get an unique text id and can only be accessed by it

This commit is contained in:
pikami 2016-06-11 16:32:49 +00:00
parent 5d1d051760
commit 01448c5d65
4 changed files with 40 additions and 14 deletions

View File

@ -8,7 +8,7 @@
while($row = $stmt->fetch(PDO::FETCH_ASSOC)) {
$title = $row['title'];
if(strlen($title)>25)$title = substr($title,0,25)."...";
echo "<a href=\"".$row['id']."\" class=\"list-group-item\">".$title."</a>";
echo "<a href=\"".$row['uid']."\" class=\"list-group-item\">".$title."</a>";
}
?>
</div>

View File

@ -1,12 +1,14 @@
<div class="panel panel-default">
<div class="panel-body">
<?php
if(isset($id)){
if(isset($uid)){
include "config/config.php";
$stmt = $conn->query('SELECT * FROM pastes WHERE id='.$id);
$result = $stmt->fetch(PDO::FETCH_ASSOC);
$stmt = $conn->query('SELECT * FROM pastes WHERE uid="'.$uid.'"');
if($result = $stmt->fetch(PDO::FETCH_ASSOC)){
echo "<h1>".$result["title"]."</h1>";
echo "<textarea class=\"form-control\" rows=\"5\" disabled=\"true\">".$result["text"]."</textarea>";
}
else echo "Paste does not exist";
} else echo "Error: id not set";
?>
</div>

View File

@ -31,11 +31,9 @@
if (isset($_GET["page"])){
if($_GET["page"] == "create"){
include "NewPaste.php";
} else if (is_numeric($_GET["page"])) {
$id = $_GET["page"];
include "ViewPaste.php";
} else {
echo "The page does not exist";
$uid = $_GET["page"];
include "ViewPaste.php";
}
} else {
include "NewPaste.php";

View File

@ -1,5 +1,30 @@
<?php
include "config/config.php";
function generate_uid () {
global $conn;
$name = '';
// We start at N retries, and --N until we give up
$tries = 500;
do {
// Iterate until we reach the maximum number of retries
if ($tries-- == 0) throw new Exception('Gave up trying to find an unused name', 500);
$chars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
$name = '';
for ($i = 0; $i < 8; $i++) {
$name .= $chars[mt_rand(0, 25)];
// $chars string length is hardcoded, should use a variable to store it?
}
// Check if a paste with the same uid does already exist in the database
$q = $conn->prepare('SELECT COUNT(uid) FROM pastes WHERE uid = (:name)');
$q->bindValue(':name', $name, PDO::PARAM_STR);
$q->execute();
$result = $q->fetchColumn();
// If it does, generate a new uid
} while($result > 0);
return $name;
}
if(isset($_POST["type"])){
//===New_Paste===//
if($_POST["type"]=="paste" && isset($_POST["text"])){
@ -8,15 +33,16 @@ if(isset($_POST["type"])){
$text = $_POST["text"];
if(isset($_POST["title"]))
$title = $_POST["title"];
$uid = generate_uid();
/* Add paste to database */
$stmt = $conn->prepare("INSERT INTO pastes (title,text)
VALUES (:tit, :txt)");
$stmt = $conn->prepare("INSERT INTO pastes (uid,title,text)
VALUES (:uid, :tit, :txt)");
$stmt->bindParam(':uid', $uid);
$stmt->bindParam(':tit', $title);
$stmt->bindParam(':txt', $text);
$stmt->execute();
$id = $conn->lastInsertId();
$conn = null; //close connection to database
header("Location: ".$id);
header("Location: ".$uid);
die();
}
}