ponepaste/includes/functions.php
2023-08-29 03:42:29 -04:00

332 lines
11 KiB
PHP

<?php
use Illuminate\Database\Eloquent\Collection;
use PonePaste\Models\AdminLog;
use PonePaste\Models\Paste;
use PonePaste\Models\User;
function tagsToHtml(array | Collection $tags) : string {
$output = "";
foreach ($tags as $tagObj) {
$tag = $tagObj->name;
$tag_lower = strtolower($tag);
if ($tag_lower === 'nsfw' || $tag_lower === 'explicit') {
$tagcolor = "tag is-danger";
} elseif ($tag_lower === 'safe') {
$tagcolor = "tag is-success";
} elseif ($tag[0] === '/' && $tag[-1] === '/') {
$tagcolor = "tag is-primary";
} else {
$tagcolor = "tag is-info";
}
$output .= '<a href="/archive?q=' . urlencode($tag) . '"><span class="' . $tagcolor . '">' . pp_html_escape($tag) . '</span></a>';
}
return $output;
}
function tagsToHtmlUser(string | array | Collection $tags, $profile_username) : string {
$output = "";
if (is_a($tags, Collection::class)) {
$tags = $tags->toArray();
}
if (is_array($tags)) {
$tagsSplit = array_map(function($tag) { return $tag['name']; }, $tags);
} else {
$tagsSplit = explode(",", $tags);
}
if (count($tagsSplit) === 0) {
return '<span class="tag is-warning">No tags</span>';
}
foreach ($tagsSplit as $tag) {
$tag_lower = strtolower($tag);
if ($tag_lower === 'nsfw' || $tag_lower === 'explicit') {
$tagcolor = "tag is-danger";
} elseif ($tag_lower === 'safe') {
$tagcolor = "tag is-success";
} elseif ($tag[0] === '/' && $tag[-1] === '/') {
$tagcolor = "tag is-primary";
} else {
$tagcolor = "tag is-info";
}
$output .= '<a href="/user.php?user=' . $profile_username . '&q=' . urlencode($tag) . '"><span class="' . $tagcolor . '">' . pp_html_escape($tag) . '</span></a>';
}
return $output;
}
function linkify($value, $protocols = array('http', 'mail'), array $attributes = array()) : array|string|null {
// Link attributes
$attr = '';
foreach ($attributes as $key => $val) {
$attr .= ' ' . $key . '="' . htmlentities($val) . '"';
}
$links = array();
// Extract existing links and tags
$value = preg_replace_callback('~(<a .*?>.*?</a>|<.*?>)~i', function ($match) use (&$links) {
return '<' . array_push($links, $match[1]) . '>';
}, $value);
// Extract text links for each protocol
foreach ((array) $protocols as $protocol) {
$value = match ($protocol) {
'http', 'https' => preg_replace_callback('~(?:(https?)://([^\s<]+)|(www\.[^\s<]+?\.[^\s<]+))(?<![\.,:])~i', function ($match) use ($protocol, &$links, $attr) {
if ($match[1]) $protocol = $match[1];
$link = $match[2] ?: $match[3];
return '<' . array_push($links, "<a $attr href=\"$protocol://$link\">$protocol://$link</a>") . '>';
}, $value),
default => preg_replace_callback('~' . preg_quote($protocol, '~') . '://([^\s<]+?)(?<![\.,:])~i', function ($match) use ($protocol, &$links, $attr) {
return '<' . array_push($links, "<a $attr href=\"$protocol://{$match[1]}\">$protocol://{$match[1]}</a>") . '>';
}, $value),
};
}
// Insert all link
return preg_replace_callback('/<(\d+)>/', function ($match) use (&$links) {
return $links[$match[1] - 1];
}, $value);
}
function formatBytes($size, $precision = 2) : string {
$base = log($size, 1024);
$suffixes = ['B', 'KB', 'MB', 'GB', 'TB'];
if ($size === 0) {
return '0 B';
}
return round(pow(1024, $base - floor($base)), $precision) . ' ' . $suffixes[floor($base)];
}
function friendlyDateDifference(DateTime $lesser, DateTime $greater) : string {
$delta = $greater->diff($lesser, true);
$parts = [
'year' => $delta->y,
'month' => $delta->m,
'day' => $delta->d,
'hour' => $delta->h,
'min' => $delta->i,
'sec' => $delta->s
];
$friendly = '';
foreach ($parts as $part => $value) {
if ($value !== 0) {
$pluralizer = ($value === 1 ? '' : 's');
$friendly .= "{$value} {$part}{$pluralizer} ";
}
}
return trim($friendly) . ' ago';
}
function truncate(string $input, int $maxWords, int $maxChars) : string {
$words = preg_split('/\s+/', $input);
$words = array_slice($words, 0, $maxWords);
$words = array_reverse($words);
$chars = 0;
$truncated = array();
while (count($words) > 0) {
$fragment = trim(array_pop($words));
$chars += strlen($fragment);
if ($chars > $maxChars)
break;
$truncated[] = $fragment;
}
$result = implode(' ', $truncated);
return $result . ($input == $result ? '' : '[...]');
}
function embedView($paste_id, $p_title, $content, $title) : bool {
$baseurl = pp_site_url();
$stats = false;
if ($content) {
// Build the output
$output = "<div class='paste_embed_container'>";
$output .= "<style>"; // Add our own styles
$output .= "
.paste_embed_container {
font-size: 12px;
color: #333;
text-align: left;
margin-bottom: 1em;
border: 1px solid #ddd;
background-color: #f7f7f7;
border-radius: 3px;
}
.paste_embed_container a {
font-weight: bold;
color: #666;
text-decoration: none;
border: 0;
}
.paste_embed_container ol {
color: white;
background-color: #f7f7f7;
border-right: 1px solid #ccc;
margin: 0;
}
.paste_embed_footer {
font-size:14px;
padding: 10px;
overflow: hidden;
color: #767676;
background-color: #f7f7f7;
border-radius: 0 0 2px 2px;
border-top: 1px solid #ccc;
}
.de1, .de2 {
-moz-user-select: text;
-khtml-user-select: text;
-webkit-user-select: text;
-ms-user-select: text;
user-select: text;
padding: 0 8px;
color: #000;
border-left: 1px solid #ddd;
background: #ffffff;
line-height:20px;
}";
$output .= "</style>";
$output .= $content; // Paste content
$output .= "<div class='paste_embed_footer'>";
$output .= "<a href='{$baseurl}/{$paste_id}'>$p_title</a> Hosted by <a href='{$baseurl}'>$title</a> | <a href='{$baseurl}/raw/$paste_id'>view raw</a>";
$output .= "</div>";
$output .= "</div>";
// Display embed conntent using json_encode since that escapes
// characters well enough to satisfy javascript. http://stackoverflow.com/a/169035
header('Content-Type: text/javascript; charset=utf-8;');
echo 'document.write(' . json_encode($output) . ')';
$stats = true;
} else {
// 404
header('HTTP/1.1 404 Not Found');
}
return $stats;
}
function addToSitemap(Paste $paste, $priority, $changefreq) : void {
$c_date = date('Y-m-d');
$site_data = file_get_contents("sitemap.xml");
$site_data = str_replace("</urlset>", "", $site_data);
$c_sitemap =
' <url>
<loc>' . urlForPaste($paste) . '</loc>
<priority>' . $priority . '</priority>
<changefreq>' . $changefreq . '</changefreq>
<lastmod>' . $c_date . '</lastmod>
</url>
</urlset>';
$full_map = $site_data . $c_sitemap;
file_put_contents("sitemap.xml", $full_map);
}
function paste_protocol() : string {
return !empty($_SERVER['HTTPS']) ? 'https://' : 'http://';
}
function pp_site_url() : string {
return paste_protocol() . $_SERVER['HTTP_HOST'];
}
/* get rid of unintended wildcards in a parameter to LIKE queries; not a security issue, just unexpected behaviour. */
function escapeLikeQuery(string $query) : string {
return str_replace(['\\', '_', '%'], ['\\\\', '\\_', '\\%'], $query);
}
function paginate(int $current_page, int $per_page, int $total_records, $prefix = '') : string {
$first_page = 0;
$last_page = floor($total_records / $per_page);
$window = 2;
if ($first_page == $last_page) {
// Do something?
}
$_page_button = function(int $page, string $text, bool $disabled = false) use ($current_page, $prefix) : string {
/* We need to update the 'page' parameter in the request URI, or add it if it doesn't exist. */
$request_uri = parse_url($_SERVER['REQUEST_URI']);
parse_str((string) @$request_uri['query'], $parsed_query);
$parsed_query[$prefix . 'page'] = (string) $page;
$page_uri = ((string) @$request_uri['path']) . '?' . http_build_query($parsed_query);
$selected_class = $current_page == $page ? ' paginator__button--selected' : '';
$disabled_text = $disabled ? ' aria-disabled="true"' : '';
return sprintf("<a type=\"button\" class=\"paginator__button$selected_class\" href=\"%s\"%s>%s</a>", $page_uri, $disabled_text, $text);
};
$html = '';
/* First and last page the main paginator will show */
$first_page_show = max(($current_page - $window), $first_page);
$last_page_show = min(($current_page + $window), $last_page);
/* Whether to show the first and last pages in existence at the ends of the paginator */
$show_first_page = (abs($first_page - $current_page)) > ($window);
$show_last_page = (abs($last_page - $current_page)) > ($window);
$prev_button_disabled = $current_page == $first_page ? 'disabled' : '';
$next_button_disabled = $current_page == $last_page ? 'disabled' : '';
$html .= $_page_button($current_page - 1, 'Previous', $prev_button_disabled);
if ($show_first_page) {
$html .= $_page_button($first_page, $first_page);
$html .= '<span class="ellipsis">…</span>';
}
for ($i = $first_page_show; $i <= $last_page_show; $i++) {
$html .= $_page_button($i, $i);
}
if ($show_last_page) {
$html .= '<span class="ellipsis">…</span>';
$html .= $_page_button($last_page, $last_page);
}
$html .= $_page_button($current_page + 1, 'Next', $next_button_disabled);
return $html;
}
function pp_filename_escape(string $filename, string $extension) : string {
/* Remove NTFS invalid characters */
$filename = preg_replace('#[<>:"/|?*]#', '-', $filename);
/* Windows MAX_PATH limit */
if (strlen($filename . $extension) > 255) {
$filename = substr($filename, 0, 255 - strlen($extension));
}
return $filename . $extension;
}
function pp_setup_pagination($prefix = '', $per_page = 20) : array {
$current_page = 0;
if (!empty($_GET[$prefix . 'page'])) {
$current_page = max(0, intval($_GET[$prefix . 'page']));
}
if (!empty($_GET[$prefix . 'per_page'])) {
$per_page = max(1, min(100, intval($_GET[$prefix . 'per_page'])));
}
return [$per_page, $current_page];
}