file($tmp_name, FILEINFO_MIME_TYPE);
$safe_img_mime = array(
"image/gif",
"image/jpeg",
"image/png",
"image/svg+xml",
"image/webp",
"image/bmp",
"image/x-icon",
"image/tiff"
);
if(in_array($tmp_ext,$safe_img_mime)){
return $tmp_ext;
}else{
return false;
}
}
//ファイル形式チェック(画像かどうか)
function check_mime_video($tmp_name){
$finfo = new finfo();
$tmp_ext = $finfo->file($tmp_name, FILEINFO_MIME_TYPE);
$safe_vid_mime = array(
"video/mpeg",
"video/mp4",
"video/webm",
"video/x-msvideo",
);
if(in_array($tmp_ext,$safe_vid_mime)){
return $tmp_ext;
}else{
return false;
}
}
//ファイル形式チェック(Base64の場合)
function base64_mime($Base64,$userid){
$Base64 = base64_decode($Base64);
$finfo = finfo_open(FILEINFO_MIME_TYPE);
$mime_type = finfo_buffer($finfo, $Base64);
$safe_img_mime = [
"image/gif" => 'gif',
"image/jpeg" => 'jpg',
"image/png" => 'png',
"image/svg+xml" => 'svg',
"image/webp" => 'webp',
"image/bmp" => 'bmp',
"image/x-icon" => 'ico',
"image/tiff" => 'tiff'
];
if(isset($safe_img_mime[$mime_type])){
$extension = $safe_img_mime[$mime_type];
$temp_file = tempnam(sys_get_temp_dir(), 'img');
file_put_contents($temp_file, $Base64);
delete_exif($extension, $temp_file);
$newFilename = uniqid() . '-' . $userid . '.' . $extension;
$uploadedPath = '../ueuseimages/' . $newFilename;
$result = copy($temp_file, "../".$uploadedPath);
if($result){
return $uploadedPath;
} else {
return false;
}
} else {
return false;
}
}
//文字装飾・URL変換など
function processMarkdownAndWrapEmptyLines($markdownText){
//\___________________[注意]__________________\
// \____ここの順番を変えるとうまく動かなくなります___\
// \______Markdownうまく動くところを探すべし______\
$markdownText = preg_replace('/\[\[buruburu (.+)\]\]/m', '$1', $markdownText);//ぶるぶる
$markdownText = preg_replace('/(^|[^`])`([^`\n]+)`($|[^`])/m', '$1$2$3', $markdownText);//Inline Code
$markdownText = preg_replace_callback('/^\[\[time (\d+)\]\]/m', function($matches) {
$timestamp = $matches[1];
return '' . date("Y/m/d H:i", htmlentities($timestamp, ENT_QUOTES, 'UTF-8', false)) . '';
}, $markdownText);
//太字&斜体------------------------------------------------------------------------
$markdownText = preg_replace('/\*\*\*(.+)\*\*\*(?=\s)/', '$1', $markdownText);//太字&斜体の全部のせセット
$markdownText = preg_replace('/\*\*\*(.+)\*\*\*/', '$1', $markdownText);//太字&斜体の全部のせセット
$markdownText = preg_replace('/\_\_\_(.+)\_\_\_(?=\s)/', '$1', $markdownText);//太字&斜体の全部のせセット
$markdownText = preg_replace('/\b\_\_\_(.+)\_\_\_\b/', '$1', $markdownText);//太字&斜体の全部のせセット
//太字-----------------------------------------------------------------------------
$markdownText = preg_replace('/\*\*(.+)\*\*(?=\s)/', '$1', $markdownText);//太字
$markdownText = preg_replace('/\b\*\*(.+)\*\*\b/', '$1', $markdownText);//太字
$markdownText = preg_replace('/\_\_(.+)\_\_(?=\s)/', '$1', $markdownText);//太字
$markdownText = preg_replace('/\b\_\_(.+)\_\_\b/', '$1', $markdownText);//太字
//斜体-----------------------------------------------------------------------------
$markdownText = preg_replace('/\*(.+)\*(?=\s)/', '$1', $markdownText);//斜体
$markdownText = preg_replace('/\b\*(.+)\*\b/', '$1', $markdownText);//斜体
$markdownText = preg_replace('/\_(.+)\_(?=\s)/', '$1', $markdownText);//斜体
$markdownText = preg_replace('/\b\_(.+)\_\b/', '$1', $markdownText);//斜体
$markdownText = preg_replace('/\~\~(.+)\~\~/m', '$1', $markdownText);//打ち消し線
$markdownText = preg_replace('/>>> (.+)/m', '$1', $markdownText);//>>> 引用
$markdownText = preg_replace('/\|\|(.+)\|\|/m', '$1', $markdownText);//黒塗り
// タイトル（#、##、###）をHTMLのhタグに変換
$markdownText = preg_replace('/^# (.+)/m', '$1
', $markdownText);
$markdownText = preg_replace('/^## (.+)/m', '$1
', $markdownText);
$markdownText = preg_replace('/^### (.+)/m', '$1
', $markdownText);
// 箇条書き（-）をHTMLのul/liタグに変換
$markdownText = preg_replace('/^- (.+)/m', '・ $1
', $markdownText);
// 空行の前に何もない行をHTMLのpタグに変換
$markdownText = preg_replace('/(^\s*)(?!\s)(.*)/m', '$1$2
', $markdownText);
return $markdownText;
}
//Profile
function replaceProfileEmojiImages($postText) {
$postText = str_replace(''', '\'', $postText);
// プロフィール名で絵文字名（:emoji:）を検出して画像に置き換える
$emojiPattern = '/:(\w+):/';
$postTextWithImages = preg_replace_callback($emojiPattern, function($matches) {
$emojiName = $matches[1];
//絵文字path取得
$dbh = new PDO('mysql:charset=utf8mb4;dbname='.DB_NAME.';host='.DB_HOST, DB_USER, DB_PASS, array(
PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
PDO::MYSQL_ATTR_USE_BUFFERED_QUERY => true,
));
$emoji_Query = $dbh->prepare("SELECT emojifile, emojiname FROM emoji WHERE emojiname = :emojiname");
$emoji_Query->bindValue(':emojiname', $emojiName);
$emoji_Query->execute();
$emoji_row = $emoji_Query->fetch();
if(empty($emoji_row["emojifile"])){
$emoji_path = "img/sysimage/errorimage/emoji_404.png";
}else{
$emoji_path = $emoji_row["emojifile"];
}
return "![:$emojiName:](../".$emoji_path." ":$emojiName:")
";
}, $postText);
return $postTextWithImages;
}
// ユーズ内の絵文字やhashtagを画像に置き換える
function replaceEmojisWithImages($postText) {
$postText = str_replace(''', '\'', $postText);
// ユーズ内で絵文字名（:emoji:）を検出して画像に置き換える
$emojiPattern = '/:(\w+):/';
$postTextWithImages = preg_replace_callback($emojiPattern, function($matches) {
$emojiName = $matches[1];
//絵文字path取得
$dbh = new PDO('mysql:charset=utf8mb4;dbname='.DB_NAME.';host='.DB_HOST, DB_USER, DB_PASS, array(
PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
PDO::MYSQL_ATTR_USE_BUFFERED_QUERY => true,
));
$emoji_Query = $dbh->prepare("SELECT emojifile, emojiname FROM emoji WHERE emojiname = :emojiname");
$emoji_Query->bindValue(':emojiname', $emojiName);
$emoji_Query->execute();
$emoji_row = $emoji_Query->fetch();
if(empty($emoji_row["emojifile"])){
$emoji_path = "img/sysimage/errorimage/emoji_404.png";
return ":".$emojiName.":";
}else{
$emoji_path = $emoji_row["emojifile"];
return "";
}
}, $postText);
// @username を検出してリンクに置き換える
$usernamePattern = '/@(\w+)/';
$postTextWithImagesAndUsernames = preg_replace_callback($usernamePattern, function($matches) {
$username = $matches[1];
$dbh = new PDO('mysql:charset=utf8mb4;dbname='.DB_NAME.';host='.DB_HOST, DB_USER, DB_PASS, array(
PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
PDO::MYSQL_ATTR_USE_BUFFERED_QUERY => true,
));
$mentionsuserQuery = $dbh->prepare("SELECT username, userid FROM account WHERE userid = :userid");
$mentionsuserQuery->bindValue(':userid', $username);
$mentionsuserQuery->execute();
$mentionsuserData = $mentionsuserQuery->fetch();
if(empty($mentionsuserData)){
return "@$username";
}else{
return "@".replaceProfileEmojiImages(htmlentities($mentionsuserData["username"], ENT_QUOTES, 'UTF-8', false))."";
}
}, $postTextWithImages);
$hashtagsPattern = '/#([\p{Han}\p{Hiragana}\p{Katakana}A-Za-z0-9ー_!]+)/u';
$postTextWithHashtags = preg_replace_callback($hashtagsPattern, function($matches) {
$hashtags = $matches[1];
return "" . '#' . $hashtags . "";
}, $postTextWithImagesAndUsernames);
return $postTextWithHashtags;
}
function replaceURLsWithLinks($postText, $maxLength = 48) {
$pattern = '/(https:\/\/[\w!?\/+\-_~;.,*&@#$%()+|https:\/\/[ぁ-んァ-ヶ一-龠々\w\-\/?=&%.]+)/';
$convertedText = preg_replace_callback($pattern, function($matches) use ($maxLength) {
$link = $matches[0];
if(!(preg_match('/:(\w+):/',$link))){
$no_https_link = str_replace("https://", "", $link);
if (mb_strlen($link) > $maxLength) {
$truncatedLink = mb_substr($no_https_link, 0, $maxLength).'...';
return ''.$truncatedLink.'';
} else {
return ''.$no_https_link.'';
}
}else{
return $link;
}
}, $postText);
return $convertedText;
}
function YouTube_and_nicovideo_Links($postText) {
// URLを正規表現を使って検出
$pattern = '/(https:\/\/[^\s<>\[\]\'"]+)/'; // 改良された正規表現
preg_match_all($pattern, $postText, $matches);
if(empty($url)){
$postText = "";
}
// 検出したURLごとに処理を行う
foreach ($matches[0] as $url) {
// ドメイン部分を抽出
$parsedUrl = parse_url($url);
if(!(empty($parsedUrl['host']))){
if($parsedUrl['host'] == "youtube.com" || $parsedUrl['host'] == "youtu.be" || $parsedUrl['host'] == "www.youtube.com" || $parsedUrl['host'] == "m.youtube.com"){
if (isset($parsedUrl['query'])) {
if(false !== strpos($parsedUrl['query'], 'v=')) {
$video_id = str_replace('v=', '', htmlentities($parsedUrl['query'], ENT_QUOTES, 'UTF-8', false));
$iframe = true;
}else{
$video_id = str_replace('/', '', htmlentities($parsedUrl['path'], ENT_QUOTES, 'UTF-8', false));
$iframe = true;
}
$video_id = str_replace('&', '?', $video_id);
}elseif(isset($parsedUrl['path'])){
$video_id = str_replace('/', '', htmlentities($parsedUrl['path'], ENT_QUOTES, 'UTF-8', false));
$iframe = true;
}else{
$video_id = "";
$iframe = false;
}
// 不要な文字を削除してaタグを生成
if($iframe == true){
$link = '';
}else{
$link = "";
}
// URLをドメインのみを表示するaタグで置き換え
$postText = $link;
}elseif($parsedUrl['host'] == "nicovideo.jp" || $parsedUrl['host'] == "www.nicovideo.jp"){
if(isset($parsedUrl['path'])){
$video_id = str_replace('/watch/', '', htmlentities($parsedUrl['path'], ENT_QUOTES, 'UTF-8', false));
$iframe = true;
}else{
$video_id = "";
$iframe = false;
}
// 不要な文字を削除してaタグを生成
if($iframe == true){
$link = '