← All changes | includes/class-wpbot-gc-download.php +169 -167 8.5.8 → 8.8.0 View file →

		@@ -1,167 +1,169 @@
1		-<?php
2		-if ( ! defined( 'ABSPATH' ) ) {
3		- exit;
4		-}
5		-
6		-class WPBotGCDownload
7		-{
8		- private $download_url = 'https://github.com/qcloud/gc/raw/master/wpbotgc.zip';
9		- private $filename = 'wpbotgc.zip';
10		-
11		- public function __construct() {
12		- add_action( 'wp_ajax_qcld_wp_chatbot_gc_client_download', array( $this, 'downloadgc' ) );
13		- add_action( 'wp_ajax_qcld_wp_chatbot_gc_client_extract', array( $this, 'extractgc' ) );
14		- }
15		-
16		- /**
17		- * Initialise WP_Filesystem and return the global instance.
18		- */
19		- private function get_filesystem() {
20		- global $wp_filesystem;
21		- if ( empty( $wp_filesystem ) ) {
22		- require_once ABSPATH . 'wp-admin/includes/file.php';
23		- WP_Filesystem();
24		- }
25		- return $wp_filesystem;
26		- }
27		-
28		- /**
29		- * Create a directory using WP_Filesystem.
30		- */
31		- public function create_folder( $gcdirectory ) {
32		- $fs = $this->get_filesystem();
33		- if ( ! $fs->is_dir( $gcdirectory ) ) {
34		- return $fs->mkdir( $gcdirectory, FS_CHMOD_DIR );
35		- }
36		- return true;
37		- }
38		-
39		- /**
40		- * Create a blank index.php guard file using WP_Filesystem.
41		- */
42		- public function create_file( $filename ) {
43		- $fs = $this->get_filesystem();
44		- if ( $fs->exists( $filename ) ) {
45		- return true;
46		- }
47		- return $fs->put_contents( $filename, '<?php //silence is golden', FS_CHMOD_FILE );
48		- }
49		-
50		- public function downloadgc() {
51		- if ( ! current_user_can( 'manage_options' ) ) {
52		- wp_send_json( array( 'success' => false, 'msg' => esc_html__( 'Unauthorized access', 'chatbot' ) ) );
53		- wp_die();
54		- }
55		-
56		- $nonce = sanitize_text_field( wp_unslash( $_POST['nonce'] ?? '' ) );
57		- if ( ! wp_verify_nonce( $nonce, 'wp_chatbot' ) ) {
58		- wp_send_json( array( 'success' => false, 'msg' => esc_html__( 'Failed in Security check', 'chatbot' ) ) );
59		- wp_die();
60		- }
61		-
62		- $fs = $this->get_filesystem();
63		- $gcdirectory = QCLD_wpCHATBOT_GC_DIRNAME;
64		-
65		- if ( ! $fs->is_dir( $gcdirectory ) ) {
66		- $this->create_folder( $gcdirectory );
67		- }
68		-
69		- if ( ! $fs->exists( $gcdirectory . '/index.php' ) ) {
70		- $this->create_file( $gcdirectory . '/index.php' );
71		- }
72		-
73		- if ( ! $fs->is_dir( $gcdirectory ) ) {
74		- wp_send_json( array( 'status' => 'error', 'content' => esc_html__( 'Server does not allow creating files and folders.', 'chatbot' ) ) );
75		- wp_die();
76		- }
77		-
78		- $zip_file = $gcdirectory . '/' . $this->filename;
79		-
80		- $remote_response = wp_remote_get( $this->download_url, array(
81		- 'timeout' => 60,
82		- 'stream' => true,
83		- 'filename' => $zip_file,
84		- ) );
85		-
86		- if ( is_wp_error( $remote_response ) ) {
87		- wp_send_json( array( 'status' => 'error', 'content' => esc_html( $remote_response->get_error_message() ) ) );
88		- wp_die();
89		- }
90		-
91		- $http_code = wp_remote_retrieve_response_code( $remote_response );
92		- if ( 200 !== $http_code ) {
93		- wp_send_json( array( 'status' => 'error', 'content' => esc_html__( 'Remote server returned an unexpected response.', 'chatbot' ) ) );
94		- wp_die();
95		- }
96		-
97		- wp_send_json( array( 'status' => 'success', 'content' => esc_html__( 'File downloaded successfully.', 'chatbot' ) ) );
98		- wp_die();
99		- }
100		-
101		- public function extractgc() {
102		- if ( ! current_user_can( 'manage_options' ) ) {
103		- wp_send_json( array( 'success' => false, 'msg' => esc_html__( 'Unauthorized access', 'chatbot' ) ) );
104		- wp_die();
105		- }
106		-
107		- $nonce = sanitize_text_field( wp_unslash( $_POST['nonce'] ?? '' ) );
108		- if ( ! wp_verify_nonce( $nonce, 'wp_chatbot' ) ) {
109		- wp_send_json( array( 'success' => false, 'msg' => esc_html__( 'Failed in Security check', 'chatbot' ) ) );
110		- wp_die();
111		- }
112		-
113		- $fs = $this->get_filesystem();
114		- $gcdirectory = QCLD_wpCHATBOT_GC_DIRNAME;
115		- $gcfilename = $gcdirectory . '/' . $this->filename;
116		-
117		- // Verify the zip exists before attempting to open it.
118		- if ( ! $fs->exists( $gcfilename ) ) {
119		- wp_send_json( array( 'status' => 'error', 'content' => esc_html__( 'File not found.', 'chatbot' ) ) );
120		- wp_die();
121		- }
122		-
123		- $zip = new ZipArchive();
124		- if ( true !== $zip->open( $gcfilename ) ) {
125		- wp_send_json( array( 'status' => 'error', 'content' => esc_html__( 'Could not open zip archive.', 'chatbot' ) ) );
126		- wp_die();
127		- }
128		-
129		- // Validate every entry: block path traversal and absolute paths.
130		- $real_dest = realpath( $gcdirectory );
131		- for ( $i = 0; $i < $zip->numFiles; $i++ ) {
132		- $stat = $zip->statIndex( $i );
133		- $entry = $stat['name'];
134		-
135		- if (
136		- strpos( $entry, '../' ) !== false ||
137		- strpos( $entry, '..' . DIRECTORY_SEPARATOR ) !== false ||
138		- '/' === substr( $entry, 0, 1 )
139		- ) {
140		- $zip->close();
141		- $fs->delete( $gcfilename );
142		- wp_send_json( array( 'status' => 'error', 'content' => esc_html__( 'Invalid zip structure — path traversal detected.', 'chatbot' ) ) );
143		- wp_die();
144		- }
145		-
146		- // Ensure resolved path stays within the destination directory.
147		- $resolved = realpath( $real_dest . DIRECTORY_SEPARATOR . $entry );
148		- if ( $resolved !== false && strpos( $resolved, $real_dest ) !== 0 ) {
149		- $zip->close();
150		- $fs->delete( $gcfilename );
151		- wp_send_json( array( 'status' => 'error', 'content' => esc_html__( 'Invalid zip structure — entry escapes destination.', 'chatbot' ) ) );
152		- wp_die();
153		- }
154		- }
155		-
156		- $zip->extractTo( $gcdirectory );
157		- $zip->close();
158		-
159		- // Remove the zip after successful extraction.
160		- $fs->delete( $gcfilename );
161		-
162		- wp_send_json( array( 'status' => 'success', 'content' => esc_html__( 'Files extracted successfully.', 'chatbot' ) ) );
163		- wp_die();
164		- }
165		-}
166		-
167		-new WPBotGCDownload();
	1	+<?php
	2	+if ( ! defined( 'ABSPATH' ) ) {
	3	+ exit;
	4	+}
	5	+
	6	+class WPBotGCDownload
	7	+{
	8	+ private $filename = 'wpbotgc.zip';
	9	+
	10	+ /**
	11	+ * Path to the bundled Google Client zip inside the plugin.
	12	+ *
	13	+ * @return string
	14	+ */
	15	+ private function get_bundled_zip_path() {
	16	+ return plugin_dir_path( __FILE__ ) . 'assets/' . $this->filename;
	17	+ }
	18	+
	19	+ public function __construct() {
	20	+ add_action( 'wp_ajax_qcld_wp_chatbot_gc_client_download', array( $this, 'downloadgc' ) );
	21	+ add_action( 'wp_ajax_qcld_wp_chatbot_gc_client_extract', array( $this, 'extractgc' ) );
	22	+ }
	23	+
	24	+ /**
	25	+ * Initialise WP_Filesystem and return the global instance.
	26	+ */
	27	+ private function get_filesystem() {
	28	+ global $wp_filesystem;
	29	+ if ( empty( $wp_filesystem ) ) {
	30	+ require_once ABSPATH . 'wp-admin/includes/file.php';
	31	+ WP_Filesystem();
	32	+ }
	33	+ return $wp_filesystem;
	34	+ }
	35	+
	36	+ /**
	37	+ * Create a directory using WP_Filesystem.
	38	+ */
	39	+ public function create_folder( $gcdirectory ) {
	40	+ $fs = $this->get_filesystem();
	41	+ if ( ! $fs->is_dir( $gcdirectory ) ) {
	42	+ return $fs->mkdir( $gcdirectory, FS_CHMOD_DIR );
	43	+ }
	44	+ return true;
	45	+ }
	46	+
	47	+ /**
	48	+ * Create a blank index.php guard file using WP_Filesystem.
	49	+ */
	50	+ public function create_file( $filename ) {
	51	+ $fs = $this->get_filesystem();
	52	+ if ( $fs->exists( $filename ) ) {
	53	+ return true;
	54	+ }
	55	+ return $fs->put_contents( $filename, '<?php //silence is golden', FS_CHMOD_FILE );
	56	+ }
	57	+
	58	+ public function downloadgc() {
	59	+ if ( ! current_user_can( 'manage_options' ) ) {
	60	+ wp_send_json( array( 'success' => false, 'msg' => esc_html__( 'Unauthorized access', 'chatbot' ) ) );
	61	+ wp_die();
	62	+ }
	63	+
	64	+ $nonce = sanitize_text_field( wp_unslash( $_POST['nonce'] ?? '' ) );
	65	+ if ( ! wp_verify_nonce( $nonce, 'wp_chatbot' ) ) {
	66	+ wp_send_json( array( 'success' => false, 'msg' => esc_html__( 'Failed in Security check', 'chatbot' ) ) );
	67	+ wp_die();
	68	+ }
	69	+
	70	+ $fs = $this->get_filesystem();
	71	+ $gcdirectory = QCLD_wpCHATBOT_GC_DIRNAME;
	72	+
	73	+ if ( ! $fs->is_dir( $gcdirectory ) ) {
	74	+ $this->create_folder( $gcdirectory );
	75	+ }
	76	+
	77	+ if ( ! $fs->exists( $gcdirectory . '/index.php' ) ) {
	78	+ $this->create_file( $gcdirectory . '/index.php' );
	79	+ }
	80	+
	81	+ if ( ! $fs->is_dir( $gcdirectory ) ) {
	82	+ wp_send_json( array( 'status' => 'error', 'content' => esc_html__( 'Server does not allow creating files and folders.', 'chatbot' ) ) );
	83	+ wp_die();
	84	+ }
	85	+
	86	+ $zip_file = $gcdirectory . '/' . $this->filename;
	87	+ $bundled = $this->get_bundled_zip_path();
	88	+
	89	+ if ( ! $fs->exists( $bundled ) ) {
	90	+ wp_send_json( array( 'status' => 'error', 'content' => esc_html__( 'Bundled Google Client package not found. Please install it manually using the instructions above.', 'chatbot' ) ) );
	91	+ wp_die();
	92	+ }
	93	+
	94	+ if ( ! $fs->copy( $bundled, $zip_file, true, FS_CHMOD_FILE ) ) {
	95	+ wp_send_json( array( 'status' => 'error', 'content' => esc_html__( 'Could not copy the Google Client package.', 'chatbot' ) ) );
	96	+ wp_die();
	97	+ }
	98	+
	99	+ wp_send_json( array( 'status' => 'success', 'content' => esc_html__( 'File downloaded successfully.', 'chatbot' ) ) );
	100	+ wp_die();
	101	+ }
	102	+
	103	+ public function extractgc() {
	104	+ if ( ! current_user_can( 'manage_options' ) ) {
	105	+ wp_send_json( array( 'success' => false, 'msg' => esc_html__( 'Unauthorized access', 'chatbot' ) ) );
	106	+ wp_die();
	107	+ }
	108	+
	109	+ $nonce = sanitize_text_field( wp_unslash( $_POST['nonce'] ?? '' ) );
	110	+ if ( ! wp_verify_nonce( $nonce, 'wp_chatbot' ) ) {
	111	+ wp_send_json( array( 'success' => false, 'msg' => esc_html__( 'Failed in Security check', 'chatbot' ) ) );
	112	+ wp_die();
	113	+ }
	114	+
	115	+ $fs = $this->get_filesystem();
	116	+ $gcdirectory = QCLD_wpCHATBOT_GC_DIRNAME;
	117	+ $gcfilename = $gcdirectory . '/' . $this->filename;
	118	+
	119	+ // Verify the zip exists before attempting to open it.
	120	+ if ( ! $fs->exists( $gcfilename ) ) {
	121	+ wp_send_json( array( 'status' => 'error', 'content' => esc_html__( 'File not found.', 'chatbot' ) ) );
	122	+ wp_die();
	123	+ }
	124	+
	125	+ $zip = new ZipArchive();
	126	+ if ( true !== $zip->open( $gcfilename ) ) {
	127	+ wp_send_json( array( 'status' => 'error', 'content' => esc_html__( 'Could not open zip archive.', 'chatbot' ) ) );
	128	+ wp_die();
	129	+ }
	130	+
	131	+ // Validate every entry: block path traversal and absolute paths.
	132	+ $real_dest = realpath( $gcdirectory );
	133	+ for ( $i = 0; $i < $zip->numFiles; $i++ ) {
	134	+ $stat = $zip->statIndex( $i );
	135	+ $entry = $stat['name'];
	136	+
	137	+ if (
	138	+ strpos( $entry, '../' ) !== false ||
	139	+ strpos( $entry, '..' . DIRECTORY_SEPARATOR ) !== false ||
	140	+ '/' === substr( $entry, 0, 1 )
	141	+ ) {
	142	+ $zip->close();
	143	+ $fs->delete( $gcfilename );
	144	+ wp_send_json( array( 'status' => 'error', 'content' => esc_html__( 'Invalid zip structure — path traversal detected.', 'chatbot' ) ) );
	145	+ wp_die();
	146	+ }
	147	+
	148	+ // Ensure resolved path stays within the destination directory.
	149	+ $resolved = realpath( $real_dest . DIRECTORY_SEPARATOR . $entry );
	150	+ if ( $resolved !== false && strpos( $resolved, $real_dest ) !== 0 ) {
	151	+ $zip->close();
	152	+ $fs->delete( $gcfilename );
	153	+ wp_send_json( array( 'status' => 'error', 'content' => esc_html__( 'Invalid zip structure — entry escapes destination.', 'chatbot' ) ) );
	154	+ wp_die();
	155	+ }
	156	+ }
	157	+
	158	+ $zip->extractTo( $gcdirectory );
	159	+ $zip->close();
	160	+
	161	+ // Remove the zip after successful extraction.
	162	+ $fs->delete( $gcfilename );
	163	+
	164	+ wp_send_json( array( 'status' => 'success', 'content' => esc_html__( 'Files extracted successfully.', 'chatbot' ) ) );
	165	+ wp_die();
	166	+ }
	167	+}
	168	+
	169	+new WPBotGCDownload();