{"id":3539,"date":"2022-03-29T14:31:46","date_gmt":"2022-03-29T05:31:46","guid":{"rendered":"https:\/\/taitan916.info\/blog\/?p=3539"},"modified":"2024-03-26T11:56:17","modified_gmt":"2024-03-26T02:56:17","slug":"post-3539","status":"publish","type":"post","link":"https:\/\/taitan916.info\/blog\/archives\/3539","title":{"rendered":"PHP\u3067\u30ed\u30b0\u30a4\u30f3\u30d5\u30a9\u30fc\u30e0\u306b\u3072\u3089\u304c\u306a\u8a8d\u8a3c\u3092\u8a2d\u7f6e\u3059\u308b\u65b9\u6cd5"},"content":{"rendered":"

\u30ed\u30b0\u30a4\u30f3\u30d5\u30a9\u30fc\u30e0\u306b\u5e73\u4eee\u540d\u8a8d\u8a3c\u3092\u8a2d\u7f6e\u3057\u305f\u3044\u3002\u82f1\u6570\u5b57\u8a8d\u8a3c\u3060\u3068Securimage<\/a>\u3068\u3044\u3046\u30e9\u30a4\u30d6\u30e9\u30ea\u304c\u3042\u308b\u3088\u3046\u3060\u3051\u3069\u3001\u3053\u3061\u3089\u306f\u65e5\u672c\u8a9e\u306f\u4f7f\u7528\u4e0d\u53ef\u3063\u307d\u3044\u3002\u53c2\u8003\u30b5\u30a4\u30c8<\/a>\u304c\u3084\u308a\u305f\u3044\u3053\u3068\u30c9\u30f3\u30d4\u30b7\u30e3\u306a\u3082\u306e\u306e\u3001\u305d\u306e\u307e\u307e\u8a2d\u7f6e\u3057\u305f\u3060\u3051\u3067\u306f\u52d5\u304b\u306a\u304b\u3063\u305f\u306e\u3067\u8272\u3005\u8abf\u6574\u3057\u305f\u3068\u3053\u308d\u52d5\u4f5c\u3057\u305f\u3002\u4ee5\u4e0b\u306b\u5bfe\u5fdc\u65b9\u6cd5\u3092\u30e1\u30e2\u3002<\/p>\n

 <\/p>\n

\u30b5\u30f3\u30d7\u30eb<\/h2>\n

https:\/\/taitan916.info\/sample\/captcha_kana\/<\/a><\/p>\n

 <\/p>\n

\u6e96\u5099<\/h2>\n

\u9069\u5f53\u306b\u6570\u7a2e\u985e\u30d5\u30a9\u30f3\u30c8\u30d5\u30a1\u30a4\u30eb\u3092\u7528\u610f\u3057\u3001\u30d5\u30a9\u30fc\u30e0\u3092\u8a2d\u7f6e\u3059\u308b\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306b\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3057\u3066\u304a\u304f\u3002\u4eca\u56de\u306f\u4ee5\u4e0b\u304b\u3089\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u305f\u3002<\/p>\n

https:\/\/ja.osdn.net\/projects\/ipafonts\/releases\/49986<\/a><\/p>\n

 <\/p>\n

\u3072\u3089\u304c\u306a\u8a8d\u8a3c\u753b\u50cf\u4f5c\u6210\u7528\u30d7\u30ed\u30b0\u30e9\u30e0(create_captcha.php)<\/h2>\n
<?php\r\n\/\/ \u30bb\u30c3\u30b7\u30e7\u30f3\u958b\u59cb\r\nsession_start();\t\r\n\r\n\/\/\u6587\u5b57\u5316\u3051\u9632\u6b62\u306b\u3001\u8a00\u8a9e\u3068\u6587\u5b57\u30b3\u30fc\u30c9\u3092\u660e\u793a\u7684\u306b\u6307\u5b9a\u3002\r\nmb_language(\"Japanese\");\r\nmb_internal_encoding(\"UTF-8\");\r\n\r\n\/\/ \u8a2d\u5b9a\u9805\u76ee\r\ndefine(\"LOGIN_ENABLE_SEC\", 300);\/\/ \u8868\u793a\u3057\u305f\u753b\u50cf\u3067\u30ed\u30b0\u30a4\u30f3\u3092\u8a31\u53ef\u3059\u308b\u671f\u9593(\u79d2)\r\ndefine(\"IMAGE_SIZE_X\",150);\/\/ \u56de\u8ee2\u524d\u306e\u753b\u50cf\u30b5\u30a4\u30ba\uff08\u6a2a\uff09\r\ndefine(\"IMAGE_SIZE_Y\", 80);\/\/ \u56de\u8ee2\u524d\u306e\u753b\u50cf\u30b5\u30a4\u30ba\uff08\u7e26\uff09\r\ndefine(\"STRING_NUM_MIN\", 5);\/\/ \u8868\u793a\u3059\u308b\u6700\u4f4e\u6587\u5b57\u6570\r\ndefine(\"STRING_NUM_MAX\", 6);\/\/ \u8868\u793a\u3059\u308b\u6700\u5927\u6587\u5b57\u6570\r\ndefine(\"FONT_SIZE_MIN\", 12);\/\/ \u6700\u4f4e\u30d5\u30a9\u30f3\u30c8\u30b5\u30a4\u30ba\r\ndefine(\"FONT_SIZE_MAX\", 20);\/\/ \u6700\u5927\u30d5\u30a9\u30f3\u30c8\u30b5\u30a4\u30ba\t\t\r\ndefine(\"CHAR_ANGLE\", 15);\/\/ \u6587\u5b57\u306e\u50be\u304d\u89d2\u5ea6\u306e\u7bc4\u56f2\r\ndefine(\"IMAGE_TYPE\", \"jpeg\");\/\/ \"jpeg\" or \"png\"\r\n\r\n\/\/\u30d5\u30a9\u30f3\u30c8\u306e\u8a2d\u7f6e\u5834\u6240\r\n$font_path = '\/var\/www\/html\/font\/';\r\n\r\n\/\/\u30d5\u30a9\u30f3\u30c8\r\n$arr_font = array(\"{$font_path}ipag.ttf\",\"{$font_path}ipagp.ttf\",\"{$font_path}ipam.ttf\",\"{$font_path}ipamp.ttf\");\r\n\r\n\/\/ \u753b\u50cf\u306b\u8868\u793a\u3059\u308b\u6587\u5b57\u5217\u3092\u4f5c\u308b(\u3072\u3089\u304c\u306a\u306e\u307f\uff09\r\n\/\/ \u30ab\u30bf\u30ab\u30ca\u3084\u5e73\u6613\u306a\u6f22\u5b57\u3092\u8ffd\u52a0\u3059\u308b\u306e\u3082\u3042\u308a\r\n$s = \"\u3042\u3044\u3046\u3048\u304a\u304b\u304d\u304f\u3051\u3053\u3055\u3057\u3059\u305b\u305d\u305f\u3061\u3064\u3066\u3068\u306a\u306b\u306c\u306d\u306e\u306f\u3072\u3075\u3078\u307b\u307e\u307f\u3080\u3081\u3082\u3084\u3086\u3088\u3089\u308a\u308b\u308c\u308d\u308f\u3092\u3093\u304c\u304e\u3050\u3052\u3054\u3056\u3058\u305a\u305c\u305e\u3060\u3062\u3065\u3067\u3069\";\r\n\r\n\/\/ \u4e71\u6570\u306e\u30b7\u30fc\u30c9\u3092\u8a2d\u5b9a\u3059\u308b\r\nmt_srand(hexdec(bin2hex(openssl_random_pseudo_bytes(4))) );\r\n\r\n\/\/ \u30e9\u30f3\u30c0\u30e0\u6587\u5b57\u5217\u3092\u751f\u6210\r\n$string = \"\";\r\nfor($i=0; $i<mt_rand(STRING_NUM_MIN, STRING_NUM_MAX); $i++) {\r\n    $string .= mb_substr($s,mt_rand(0,mb_strlen($s)-1),1);\r\n}\r\n\r\n\/\/\u753b\u50cf\u8868\u793a\u3057\u305f\u6587\u5b57\u5217(\u6b63\u89e3)\u3092\u30bb\u30c3\u30b7\u30e7\u30f3\u5909\u6570\u306b\u5165\u308c\u308b\r\n $_SESSION['captcha_auth'] = $string;\r\n\r\n\/\/ \u753b\u50cf\u30b5\u30a4\u30ba\u3092\u6307\u5b9a\u3057\u3066\u3001\u753b\u50cf\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u751f\u6210\r\n$im = imagecreate(IMAGE_SIZE_X, IMAGE_SIZE_Y);\r\n\/\/ \u80cc\u666f\u8272\u3092\u6307\u5b9a(\u767d\u8272)\r\nimagecolorallocate($im, mt_rand(100,255), mt_rand(100,255), mt_rand(100,255));\r\n$black = imagecolorallocate($im, 0, 0, 0);\r\n$white= imagecolorallocate($im, 255, 255, 255);\r\n$gray  = imagecolorallocate($im, 196, 196, 196);\r\n    \r\n    \r\n\/\/ \u53ef\u8996\u6027\u3092\u4f4e\u304f\u3055\u305b\u308b\u305f\u3081\u306b\u3001\u6587\u5b57\u6570\u306e\uff12\u500d\u306e\u30c0\u30df\u30fc\u306e\u7dda\u3092\u5165\u308c\u308b\r\nfor($i=0; $i<mb_strlen($string)*2; $i++) {\r\n    imageline($im, mt_rand(0,IMAGE_SIZE_X - 1),mt_rand(0,IMAGE_SIZE_Y - 1),mt_rand(0,IMAGE_SIZE_X - 1),mt_rand(0,IMAGE_SIZE_Y - 1), $gray);\r\n}\r\n\r\n\/\/\u30e6\u30fc\u30b6\u306b\u5165\u529b\u3055\u305b\u308b\u305f\u3081\u306e\u6587\u5b57\u3092\u8868\u793a\r\nfor($i=0; $i<mb_strlen($string); $i++) {\r\n    \r\n\r\n    \/\/\u6a2a\u8ef8\u306f\u9806\u756a\u304c\u3042\u308b\u306e\u3067\u3001\u6587\u5b57\u9806\u306b\u3042\u308b\u7a0b\u5ea6\u6c7a\u307e\u3063\u3066\u3044\u308b\u3002\r\n    $x = (IMAGE_SIZE_X \/ mb_strlen($string)) * $i + mt_rand(-3,3);\r\n    \/\/ \u7e26\u8ef8\u306f\u3001\u4e2d\u5fc3\u90e8\u5206\u3092\u57fa\u6e96\u306b\u30e9\u30f3\u30c0\u30e0\u306b\u8868\u793a\r\n    $y = IMAGE_SIZE_Y\/2 + mt_rand(-IMAGE_SIZE_Y\/4 , IMAGE_SIZE_Y\/4);\r\n    \/\/ \u6587\u5b57\u306e\u50be\u304d\r\n    $r = mt_rand(-CHAR_ANGLE, CHAR_ANGLE);\t\r\n    \r\n    \/\/ \uff11\u6587\u5b57\u305a\u3064\u51fa\u529b\r\n    imagettftext(\r\n        $im, \t\t\t\t\t\t\t\t\t\/\/ \u6587\u5b57\u3092\u66f8\u304f\u753b\u50cf\r\n        mt_rand(FONT_SIZE_MIN, FONT_SIZE_MAX), \t\/\/ \u6587\u5b57\u306e\u30d5\u30a9\u30f3\u30c8\u30b5\u30a4\u30ba\r\n        $r, \t\t\t\t\t\t\t\t\t\/\/ \u6587\u5b57\u306e\u89d2\u5ea6\r\n        $x, $y, \t\t\t\t\t\t\t\t\/\/ \u6587\u5b57\u306e\u5ea7\u6a19\r\n        imagecolorallocate(\t\t\t\t\t\t\/\/ \u6587\u5b57\u306e\u8272(\u307b\u307c\u9ed2\u3060\u304c\u3001\u308f\u305a\u304b\u306b\u63fa\u3089\u304e\u3092\u767a\u751f\u3055\u305b\u3066\u3044\u308b)\r\n            $im, \r\n            mt_rand(0,3), \r\n            mt_rand(0,3), \r\n            mt_rand(0,3)), \r\n        $arr_font[mt_rand(0,count($arr_font)-1)], \t\/\/\u6587\u5b57\u306e\u30d5\u30a9\u30f3\u30c8\u3092\u6307\u5b9a\r\n        mb_substr(mb_convert_encoding($string, \"UTF-8\"), $i, 1, \"UTF-8\")\t\/\/\u66f8\u304d\u51fa\u3059\u6587\u5b57\u305d\u306e\u3082\u306e\r\n    );\r\n}\r\n\r\n\r\n\/\/ \u53ef\u8996\u6027\u3092\u4f4e\u304f\u3055\u305b\u308b\u305f\u3081\u306b\u3001\u308f\u305a\u304b\u306b\u753b\u50cf\u3092\u56de\u8ee2\u3055\u305b\u308b\r\n$im = imagerotate($im, mt_rand(-2,2), $white);\r\n\r\n\/\/\u753b\u50cf\u5f62\u5f0f\u306b\u5408\u308f\u305b\u3066\u30d8\u30c3\u30c0\u51fa\u529b\r\nif (IMAGE_TYPE == \"jpeg\") {\r\n    header('Content-type: image\/jpeg');\r\n    imagejpeg($im);\r\n} else {\r\n    header('Content-type: image\/png');\r\n    imagepng($im);\r\n}\r\n\r\n\/\/\u6700\u5f8c\u306b\u30ea\u30bd\u30fc\u30b9\u5ec3\u68c4\r\nimagedestroy($im);\t\r\n?><\/pre>\n
21\u884c\u76ee\u306e\u300c$font_path\u300d\u306f\u9069\u5b9c\u5909\u66f4\u3059\u308b\u3002\u5c1a\u3001\u30d5\u30a9\u30f3\u30c8\u30d5\u30a1\u30a4\u30eb\u3092\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3057\u3066\u3044\u306a\u304b\u3063\u305f\u308a\u3001\u300c$font_path\u300d\u304c\u76f8\u5bfe\u30d1\u30b9\u306e\u5834\u5408\u306f\u300cWarning: Could not find\/open font\u300d\u3068\u3044\u3046\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b\u306e\u3067\u6ce8\u610f\u3002<\/p>\n
 <\/p>\n
\u30d5\u30a9\u30fc\u30e0\u30da\u30fc\u30b8(index.php)<\/h2>\n
<?php\r\nsession_start();\r\n\r\n\/\/\u6587\u5b57\u5316\u3051\u9632\u6b62\u306b\r\nmb_language(\"Japanese\");\r\nmb_internal_encoding(\"UTF-8\");\r\n\r\nif( $_POST['captcha_text'] ){ \r\n    if($_SESSION['captcha_auth'] === $_POST['captcha_text']){\r\n        echo \"OK!!\";\r\n    }else{\r\n        echo \"NG!!\";\r\n    }\r\n}\r\n?>\r\n<html lang=\"ja\">\r\n<head>\r\n<meta charset=\"UTF-8\">\r\n<meta name=\"viewport\" content=\"initial-scale=1.0, user-scalable=no\">\r\n<title>\u753b\u50cf\u8a8d\u8a3c<\/title>\r\n<\/head>\r\n<body>\r\n\r\n    <img src=\".\/create_captcha.php\" alt=\"captcha_image\" title=\"captcha_image\" id=\"captcha_image\" \/>\r\n    <form id=\"captcha_form\" name=\"captcha_form\" method=\"post\" action=\".\/\">\r\n        <input type=\"text\"  id=\"captcha_text\" name=\"captcha_text\">\r\n        <button type=\"button\" id=\"reload\">\u30ea\u30ed\u30fc\u30c9<\/button>\r\n        <button type=\"submit\" value=\"\u9001\u4fe1\">\u9001\u4fe1<\/button>\r\n    <\/form>\r\n\r\n    <script type=\"text\/javascript\" src=\"\/\/code.jquery.com\/jquery-3.5.1.js\"><\/script>\r\n    <script>\r\n    $(function(){\r\n        $('#reload').click(function(){\r\n            $('#captcha_image').attr('src', '.\/create_captcha.php?t=' + $.now());\r\n        });\r\n    });\r\n    <\/script>\r\n\r\n<\/body>\r\n<\/html><\/pre>\n
\u53c2\u8003\u30b5\u30a4\u30c8\u3068\u7570\u306a\u308b\u90e8\u5206\u306f\u4ee5\u4e0b2\u70b9\u3002<\/p>\n