personal-website/docs/common/header.php

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<!DOCTYPE html>
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<?php
// Include config file
include_once("config.php");
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// Include utils to have access to custom classes
include_once("utils.php");
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// If the session cookie is set, start session
if(isset($_COOKIE["PHPSESSID"]))
{
session_start();
}
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// PDO Mysql connection object
$conn = null;
attempt_sql_connect();
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/** Attempt to connect to sql database
*/
function attempt_sql_connect() {
// access global $conn
global $conn;
// Load the global login constants
$sql_hostname = SQL_HOSTNAME;
$sql_database = SQL_DATABASE;
$sql_username = SQL_USERNAME;
$sql_password = SQL_PASSWORD;
try {
//Try connecting to the SQL database
$conn = new PDO("mysql:host=$sql_hostname;dbname=$sql_database",
$sql_username, $sql_password);
// set the PDO error mode to exception
$conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
} catch(PDOException $e) {
$conn = null;
return;
}
}
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/**
* If user logged out, destroy the session data and delete cookie.
*/
if (isset($_POST["logout"])) {
if (ini_get("session.use_cookies")) {
$params = session_get_cookie_params();
setcookie(session_name(), '', time() - 42000,
$params["path"], $params["domain"],
$params["secure"], $params["httponly"]
);
}
// Redirect to this page with GET
header(sprintf("Location: %s?%s", sanitize_input($_SERVER["PHP_SELF"]),
sanitize_input($_POST["get_params"])));
}
/**
* Construct the available account actions for the header depending on whether
* a user is logged in or not and return it as string.
*/
function construct_account_section(){
if(isset($_SESSION["current_user"])) {
return sprintf("Logged in as %s <br>
<form method=\"post\" action=%s>
<input name=\"get_params\" type=\"hidden\" value=\"%s\">
<input name=\"logout\" type=\"submit\" value=\"logout\">
</form>
<a href=\"http://www.zdenekborovec-dev.cz/deleteaccount/\">
Delete account</a>", $_SESSION["current_user"]->user_name,
sanitize_input($_SERVER["PHP_SELF"]),
sanitize_input($_SERVER["QUERY_STRING"]));
}
else {
return sprintf("<a href=\"http://www.zdenekborovec-dev.cz/login\">Login</a>
<br><a href=\"http://www.zdenekborovec-dev.cz/register\">Register</a>");
}
}
/**
* Start the html document, set headers, begin body and display the default
* navbar.
* <html><body> nad <main> tags will be left open, to close them
* in the default way include footer.php
* This should be the first function to write any text outside of debugging
* purposes.
*/
function display_header($pageTitle) {
printf("
<html lang=\"en\">
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<head>
<meta http-equiv=\"content-type\" content=\"text/html; charset=UTF-8\">
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<meta name=\"title\" content=\"Zdenek's Website\">
<meta name=\"description\" content=\"Hi! I am Zdenek and this is my website.\">
<meta property=\"og:image\" content=\"http://www.zdenekborovec-dev.cz/favicon.ico\">
<link rel=\"icon\" href=\"http://www.zdenekborovec-dev.cz/favicon.ico\">
<link rel=\"stylesheet\"
href=\"http://assets.zdenekborovec-dev.cz/common/styles.css?TIMESTAMP\">
<title>%s</title>
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</head>
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<body>
<main>
<div id=\"header\">
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<table class=\"noborder-table\">
<tr>
<td>
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<h1> Zdenek Borovec </h1>
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</td>
<td style=\"text-align: right; padding-right: 2em;\">
%s
</td>
</tr>
</table>
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<ul>
<li>
<a href=\"http://www.zdenekborovec-dev.cz\">
About
</a>
</li>
<li>
<a href=\"http://www.zdenekborovec-dev.cz/blog\">
Blog
</a>
</li>
<li>
Gallery
</li>
<li>
<a href=\"http://www.zdenekborovec-dev.cz/random\">
Random Tools
</a>
</li>
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</ul>
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</div>", $pageTitle, construct_account_section());
}
?>