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beast.c
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/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2007 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Author: Liexusong <liexusong@qq.com> |
| maben <www.maben@foxmail.com> |
+----------------------------------------------------------------------+
*/
/* $Id: header,v 1.16.2.1.2.1 2007/01/01 19:32:09 iliaa Exp $ */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <signal.h>
#include <time.h>
typedef struct yy_buffer_state *YY_BUFFER_STATE;
#include "zend.h"
#include "zend_operators.h"
#include "zend_globals.h"
#include "zend_language_scanner.h"
#include "zend_API.h"
#include "zend_compile.h"
#include "php.h"
#include "php_main.h"
#include "php_globals.h"
#include "php_ini.h"
#include "main/SAPI.h"
#include "ext/standard/info.h"
#include "ext/date/php_date.h"
#include "php_streams.h"
#include "php_beast.h"
#include "beast_mm.h"
#include "cache.h"
#include "beast_log.h"
#include "beast_module.h"
#include "file_handler.h"
#ifdef PHP_WIN32
#include <WinSock2.h>
#include <Iphlpapi.h>
#pragma comment(lib, PHP_LIB)
#pragma comment(lib, "Iphlpapi.lib")
#else
#include <pwd.h>
#include <unistd.h>
#include <execinfo.h>
#endif
#if ZEND_MODULE_API_NO >= 20151012
# define BEAST_RETURN_STRING(str, dup) RETURN_STRING(str)
#else
# define BEAST_RETURN_STRING(str, dup) RETURN_STRING(str, dup)
#endif
#define BEAST_VERSION "2.7"
#define DEFAULT_CACHE_SIZE 10485760 /* 10MB */
#define HEADER_MAX_SIZE 256
#define INT_SIZE (sizeof(int))
extern struct beast_ops *ops_handler_list[];
/*
* Global vaiables for extension
*/
char *beast_log_file = NULL;
char *beast_log_user = NULL;
int log_level = beast_log_notice;
int beast_ncpu = 1;
int beast_is_root = 0;
int beast_pid = -1;
/* True global resources - no need for thread safety here */
static zend_op_array* (*old_compile_file)(zend_file_handle*, int TSRMLS_DC);
static int le_beast;
static int max_cache_size = DEFAULT_CACHE_SIZE;
static int beast_enable = 1;
static int beast_max_filesize = 0;
static char *local_networkcard = NULL;
static int beast_now_time = 0;
static int log_normal_file = 0;
static char *beast_debug_path = NULL;
static int beast_debug_mode = 0;
/* {{{ beast_functions[]
*
* Every user visible function must have an entry in beast_functions[].
*/
zend_function_entry beast_functions[] = {
PHP_FE(beast_encode_file, NULL)
PHP_FE(beast_avail_cache, NULL)
PHP_FE(beast_support_filesize, NULL)
PHP_FE(beast_file_expire, NULL)
PHP_FE(beast_clean_cache, NULL)
{NULL, NULL, NULL} /* Must be the last line in beast_functions[] */
};
/* }}} */
/* {{{ beast_module_entry
*/
zend_module_entry beast_module_entry = {
#if ZEND_MODULE_API_NO >= 20010901
STANDARD_MODULE_HEADER,
#endif
"beast",
beast_functions,
PHP_MINIT(beast),
PHP_MSHUTDOWN(beast),
PHP_RINIT(beast),
PHP_RSHUTDOWN(beast),
PHP_MINFO(beast),
#if ZEND_MODULE_API_NO >= 20010901
BEAST_VERSION, /* Replace with version number for your extension */
#endif
STANDARD_MODULE_PROPERTIES
};
/* }}} */
#ifdef COMPILE_DL_BEAST
ZEND_GET_MODULE(beast)
#endif
extern struct file_handler tmpfile_handler;
extern struct file_handler pipe_handler;
static struct file_handler *default_file_handler = NULL;
static struct file_handler *file_handlers[] = {
&tmpfile_handler,
#ifndef PHP_WIN32
&pipe_handler,
#endif
NULL
};
extern char encrypt_file_header_sign[];
extern int encrypt_file_header_length;
extern char *file_handler_switch;
#define swab32(x) \
((x & 0x000000FF) << 24 | (x & 0x0000FF00) << 8 | \
(x & 0x00FF0000) >> 8 | (x & 0xFF000000) >> 24)
#define little_endian() (!big_endian())
static int big_endian()
{
unsigned short num = 0x1122;
if(*((unsigned char *)&num) == 0x11) {
return 1;
}
return 0;
}
int filter_code_comments(char *filename, zval *retval TSRMLS_DC)
{
zend_lex_state original_lex_state;
zend_file_handle file_handle = {0};
#if PHP_API_VERSION > 20090626
php_output_start_default(TSRMLS_C);
file_handle.type = ZEND_HANDLE_FILENAME;
file_handle.filename = filename;
file_handle.free_filename = 0;
file_handle.opened_path = NULL;
zend_save_lexical_state(&original_lex_state TSRMLS_CC);
if (open_file_for_scanning(&file_handle TSRMLS_CC) == FAILURE) {
zend_restore_lexical_state(&original_lex_state TSRMLS_CC);
php_output_end(TSRMLS_C);
return -1;
}
zend_strip(TSRMLS_C);
zend_destroy_file_handle(&file_handle TSRMLS_CC);
zend_restore_lexical_state(&original_lex_state TSRMLS_CC);
php_output_get_contents(retval TSRMLS_CC);
php_output_discard(TSRMLS_C);
#else
file_handle.type = ZEND_HANDLE_FILENAME;
file_handle.filename = filename;
file_handle.free_filename = 0;
file_handle.opened_path = NULL;
zend_save_lexical_state(&original_lex_state TSRMLS_CC);
if (open_file_for_scanning(&file_handle TSRMLS_CC) == FAILURE) {
zend_restore_lexical_state(&original_lex_state TSRMLS_CC);
return -1;
}
php_start_ob_buffer(NULL, 0, 1 TSRMLS_CC);
zend_strip(TSRMLS_C);
zend_destroy_file_handle(&file_handle TSRMLS_CC);
zend_restore_lexical_state(&original_lex_state TSRMLS_CC);
php_ob_get_buffer(retval TSRMLS_CC);
php_end_ob_buffer(0, 0 TSRMLS_CC);
#endif
return 0;
}
struct beast_ops *beast_get_encrypt_algo(int type)
{
int index = type - 1;
if (index < 0 || index >= BEAST_ENCRYPT_TYPE_ERROR) {
return ops_handler_list[0];
}
return ops_handler_list[index];
}
/*****************************************************************************
* *
* Encrypt a plain text file and output a cipher file *
* *
*****************************************************************************/
int encrypt_file(const char *inputfile,
const char *outputfile, int expire,
int encrypt_type TSRMLS_DC)
{
php_stream *output_stream = NULL;
zval codes;
int need_free_code = 0;
char *inbuf, *outbuf;
int inlen, outlen, dumplen, expireval, dumptype;
struct beast_ops *encrypt_ops = beast_get_encrypt_algo(encrypt_type);
/* Get php codes from script file */
if (filter_code_comments((char *)inputfile, &codes TSRMLS_CC) == -1) {
php_error_docref(NULL TSRMLS_CC, E_ERROR,
"Unable get codes from php file `%s'", inputfile);
return -1;
}
need_free_code = 1;
#if ZEND_MODULE_API_NO >= 20151012
inlen = Z_STRLEN(codes);
inbuf = Z_STRVAL(codes);
#else
inlen = codes.value.str.len;
inbuf = codes.value.str.val;
#endif
/* PHP file size can not large than beast_max_filesize */
if (beast_max_filesize > 0 && inlen > beast_max_filesize) {
return -1;
}
/* Open output file */
#if ZEND_MODULE_API_NO >= 20151012
output_stream = php_stream_open_wrapper((char *)outputfile, "w+",
IGNORE_URL_WIN|REPORT_ERRORS, NULL);
#else
output_stream = php_stream_open_wrapper((char *)outputfile, "w+",
ENFORCE_SAFE_MODE|REPORT_ERRORS, NULL);
#endif
if (!output_stream) {
php_error_docref(NULL TSRMLS_CC, E_ERROR,
"Unable to open file `%s'", outputfile);
goto failed;
}
/* if computer is little endian, change file size to big endian */
if (little_endian()) {
dumplen = swab32(inlen);
expireval = swab32(expire);
dumptype = swab32(encrypt_type);
} else {
dumplen = inlen;
expireval = expire;
dumptype = encrypt_type;
}
php_stream_write(output_stream,
encrypt_file_header_sign, encrypt_file_header_length);
php_stream_write(output_stream, (const char *)&dumplen, INT_SIZE);
php_stream_write(output_stream, (const char *)&expireval, INT_SIZE);
php_stream_write(output_stream, (const char *)&dumptype, INT_SIZE);
if (encrypt_ops->encrypt(inbuf, inlen, &outbuf, &outlen) == -1) {
php_error_docref(NULL TSRMLS_CC, E_ERROR,
"Unable to encrypt file `%s'", outputfile);
goto failed;
}
php_stream_write(output_stream, outbuf, outlen);
php_stream_close(output_stream);
zval_dtor(&codes);
if (encrypt_ops->free) {
encrypt_ops->free(outbuf);
}
return 0;
failed:
if (output_stream)
php_stream_close(output_stream);
if (need_free_code)
zval_dtor(&codes);
return -1;
}
/*****************************************************************************
* *
* Decrypt a cipher text file and output plain buffer *
* *
*****************************************************************************/
int decrypt_file(const char *filename, int stream,
char **retbuf, int *retlen, int *free_buffer,
struct beast_ops **ret_encrypt TSRMLS_DC)
{
struct stat stat_ssb;
cache_key_t findkey;
cache_item_t *cache;
int reallen, bodylen, expire;
char header[HEADER_MAX_SIZE];
int headerlen;
char *buffer = NULL, *decbuf;
int declen;
int entype;
struct beast_ops *encrypt_ops;
int retval = -1;
int n = 0;
int filesize = 0;
#ifdef PHP_WIN32
ULARGE_INTEGER ull;
BY_HANDLE_FILE_INFORMATION fileinfo;
HANDLE hFile = (HANDLE)_get_osfhandle(stream);
if (!GetFileInformationByHandle(hFile, &fileinfo)) {
beast_write_log(beast_log_error,
"Failed to get file information from file `%s'", filename);
retval = -1;
goto failed;
}
findkey.device = fileinfo.dwVolumeSerialNumber;
findkey.inode = fileinfo.nFileIndexHigh * (MAXDWORD + 1) + fileinfo.nFileIndexLow;
ull.LowPart = fileinfo.ftLastWriteTime.dwLowDateTime;
ull.HighPart = fileinfo.ftLastWriteTime.dwHighDateTime;
findkey.mtime = ull.QuadPart / 10000000ULL - 11644473600ULL;
filesize = fileinfo.nFileSizeHigh * (MAXDWORD + 1) + fileinfo.nFileSizeLow;
#else
if (fstat(stream, &stat_ssb) == -1) {
beast_write_log(beast_log_error,
"Failed to readed state buffer from file `%s'", filename);
retval = -1;
goto failed;
}
findkey.device = stat_ssb.st_dev;
findkey.inode = stat_ssb.st_ino;
findkey.mtime = stat_ssb.st_mtime;
filesize = stat_ssb.st_size;
#endif
/**
* 1) 1 int is dump length,
* 2) 1 int is expire time.
* 3) 1 int is encrypt type.
*/
headerlen = encrypt_file_header_length + INT_SIZE * 3;
if (filesize < headerlen) { /* This file is not a encrypt file */
retval = -1;
goto failed;
}
cache = beast_cache_find(&findkey);
if (cache != NULL) { /* Found cache */
*retbuf = beast_cache_data(cache);
*retlen = beast_cache_size(cache);
return 0;
}
*free_buffer = 0; /* Set free buffer flag to false */
/* Not found cache and decrypt file */
if ((n = read(stream, header, headerlen)) != headerlen) {
beast_write_log(beast_log_error,
"Failed to readed header from file `%s', headerlen:%d, readlen:%d", filename, headerlen, n);
retval = -1;
goto failed;
}
/* Not a encrypted file */
if (memcmp(header,
encrypt_file_header_sign,
encrypt_file_header_length))
{
if (log_normal_file) {
beast_write_log(beast_log_error,
"File `%s' isn't a encrypted file", filename);
}
retval = -1;
goto failed;
}
/* Real php script file's size */
reallen = *((int *)&header[encrypt_file_header_length]);
expire = *((int *)&header[encrypt_file_header_length + INT_SIZE]);
entype = *((int *)&header[encrypt_file_header_length + 2 * INT_SIZE]);
if (little_endian()) {
reallen = swab32(reallen);
expire = swab32(expire);
entype = swab32(entype);
}
/* Check file size is vaild */
if (beast_max_filesize > 0 && reallen > beast_max_filesize) {
beast_write_log(beast_log_error,
"File size `%d' out of max size `%d'",
reallen, beast_max_filesize);
retval = -1;
goto failed;
}
/* Check file is not expired */
if (expire > 0 && expire < beast_now_time) {
beast_write_log(beast_log_error, "File `%s' was expired", filename);
retval = -2;
goto failed;
}
*ret_encrypt = encrypt_ops = beast_get_encrypt_algo(entype);
/**
* How many bytes would be read from encrypt file,
* subtract encrypt file's header size,
* because we had read the header yet.
*/
bodylen = filesize - headerlen;
/* 1) Alloc memory for decrypt file */
if (!(buffer = malloc(bodylen))) {
beast_write_log(beast_log_error,
"Failed to alloc memory to file `%s' size `%d'",
filename, bodylen);
retval = -1;
goto failed;
}
/* 2) Read file stream */
if (read(stream, buffer, bodylen) != bodylen) {
beast_write_log(beast_log_error,
"Failed to readed stream from file `%s'", filename);
retval = -1;
goto failed;
}
/* 3) Decrypt file stream */
if (encrypt_ops->decrypt(buffer, bodylen, &decbuf, &declen) == -1) {
beast_write_log(beast_log_error,
"Failed to decrypted file `%s', using `%s' handler",
filename, encrypt_ops->name);
retval = -1;
goto failed;
}
free(buffer); /* Buffer don't need right now and free it */
findkey.fsize = reallen; /* How many size would we alloc from cache */
/* Try to add decrypt result to cache */
if ((cache = beast_cache_create(&findkey))) {
memcpy(beast_cache_data(cache), decbuf, reallen);
cache = beast_cache_push(cache); /* Push cache into hash table */
*retbuf = beast_cache_data(cache);
*retlen = beast_cache_size(cache);
if (encrypt_ops->free) {
encrypt_ops->free(decbuf);
}
} else { /* Return raw buffer and we need free after PHP finished */
*retbuf = decbuf;
*retlen = reallen;
*free_buffer = 1;
}
return 0;
failed:
if (buffer) {
free(buffer);
}
return retval;
}
int beast_super_mkdir(char *path)
{
char *head, *last;
char temp[1024];
for (head = last = path; *last; last++) {
if (*last == '/') {
if (last > head) {
memset(temp, 0, 1024);
memcpy(temp, path, last - path);
if (access(temp, F_OK) == -1) {
if (mkdir(temp, 0777) != 0) {
beast_write_log(beast_log_error,
"Failed to make new directory `%s'",
temp);
return -1;
}
}
}
head = last + 1;
}
}
return 0;
}
/*
* CGI compile file
*/
zend_op_array *
cgi_compile_file(zend_file_handle *h, int type TSRMLS_DC)
{
#if ZEND_MODULE_API_NO >= 20151012
zend_string *opened_path;
#else
char *opened_path;
#endif
char *buf;
int fd;
FILE *fp = NULL;
int size, free_buffer = 0;
int retval;
struct beast_ops *ops = NULL;
int destroy_file_handler = 0;
#if 0
fp = zend_fopen(h->filename, &opened_path TSRMLS_CC);
#else
fp = fopen(h->filename, "rb");
#endif
if (fp != NULL) {
fd = fileno(fp);
} else {
goto final;
}
retval = decrypt_file(h->filename, fd, &buf, &size,
&free_buffer, &ops TSRMLS_CC);
if (retval == -2) {
php_error_docref(NULL TSRMLS_CC, E_ERROR,
"This program was expired, please contact administrator");
return NULL;
}
if (retval == -1) goto final; /* Using old_compile_file() */
#if BEAST_DEBUG_MODE
if (beast_debug_mode && beast_debug_path) {
if (access(beast_debug_path, F_OK) == 0) {
char realpath[1024];
sprintf(realpath, "%s/%s", beast_debug_path, h->filename);
if (beast_super_mkdir(realpath) == 0) {
FILE *debug_fp = fopen(realpath, "w+");
if (debug_fp) {
fwrite(buf, size, 1, debug_fp);
fclose(debug_fp);
}
}
}
}
#endif
if (default_file_handler->open(default_file_handler) == -1 ||
default_file_handler->write(default_file_handler, buf, size) == -1 ||
default_file_handler->rewind(default_file_handler) == -1)
{
destroy_file_handler = 1;
goto final;
}
if (h->type == ZEND_HANDLE_FP) fclose(h->handle.fp);
if (h->type == ZEND_HANDLE_FD) close(h->handle.fd);
/*
* Get file handler and free context
*/
switch (default_file_handler->type) {
case BEAST_FILE_HANDLER_FP:
h->type = ZEND_HANDLE_FP;
h->handle.fp = default_file_handler->get_fp(default_file_handler);
break;
case BEAST_FILE_HANDLER_FD:
h->type = ZEND_HANDLE_FD;
h->handle.fd = default_file_handler->get_fd(default_file_handler);
break;
}
final:
if (free_buffer && ops) {
if (ops->free) {
ops->free(buf);
}
}
if (fp) fclose(fp);
if (destroy_file_handler) {
default_file_handler->destroy(default_file_handler);
}
return old_compile_file(h, type TSRMLS_CC);
}
/* Configure entries */
void beast_atoi(const char *str, int *ret, int *len)
{
const char *ptr = str;
char ch;
int absolute = 1;
int rlen, result;
ch = *ptr;
if (ch == '-') {
absolute = -1;
++ptr;
} else if (ch == '+') {
absolute = 1;
++ptr;
}
for (rlen = 0, result = 0; *ptr != '\0'; ptr++) {
ch = *ptr;
if (ch >= '0' && ch <= '9') {
result = result * 10 + (ch - '0');
rlen++;
} else {
break;
}
}
if (ret) *ret = absolute * result;
if (len) *len = rlen;
}
ZEND_INI_MH(php_beast_cache_size)
{
#if ZEND_MODULE_API_NO >= 20151012
char *value = ZSTR_VAL(new_value);
int length = ZSTR_LEN(new_value);
int retlen;
if (length == 0) {
return FAILURE;
}
beast_atoi(value, &max_cache_size, &retlen);
if (retlen > 0 && retlen < length) {
switch (value[retlen]) {
case 'k':
case 'K':
max_cache_size *= 1024;
break;
case 'm':
case 'M':
max_cache_size *= 1024 * 1024;
break;
case 'g':
case 'G':
max_cache_size *= 1024 * 1024 * 1024;
break;
default:
return FAILURE;
}
} else if (retlen == 0) {
return FAILURE;
}
return SUCCESS;
#else
int len;
if (new_value_length == 0) {
return FAILURE;
}
beast_atoi(new_value, &max_cache_size, &len);
if (len > 0 && len < new_value_length) {
switch (new_value[len]) {
case 'k':
case 'K':
max_cache_size *= 1024;
break;
case 'm':
case 'M':
max_cache_size *= 1024 * 1024;
break;
case 'g':
case 'G':
max_cache_size *= 1024 * 1024 * 1024;
break;
default:
return FAILURE;
}
} else if (len == 0) {
return FAILURE;
}
return SUCCESS;
#endif
}
ZEND_INI_MH(php_beast_log_file)
{
#if ZEND_MODULE_API_NO >= 20151012
if (ZSTR_LEN(new_value) == 0) {
return SUCCESS;
}
beast_log_file = estrdup(ZSTR_VAL(new_value));
if (beast_log_file == NULL) {
return FAILURE;
}
return SUCCESS;
#else
if (new_value_length == 0) {
return SUCCESS;
}
beast_log_file = strdup(new_value);
if (beast_log_file == NULL) {
return FAILURE;
}
return SUCCESS;
#endif
}
ZEND_INI_MH(php_beast_log_user)
{
#if ZEND_MODULE_API_NO >= 20151012
if (ZSTR_LEN(new_value) == 0) {
return SUCCESS;
}
beast_log_user = estrdup(ZSTR_VAL(new_value));
if (beast_log_user == NULL) {
return FAILURE;
}
return SUCCESS;
#else
if (new_value_length == 0) {
return SUCCESS;
}
beast_log_user = strdup(new_value);
if (beast_log_user == NULL) {
return FAILURE;
}
return SUCCESS;
#endif
}
ZEND_INI_MH(php_beast_log_level)
{
char *level = NULL;
#if ZEND_MODULE_API_NO >= 20151012
if (ZSTR_LEN(new_value) == 0) {
return SUCCESS;
}
level = ZSTR_VAL(new_value);
#else
if (new_value_length == 0) {
return SUCCESS;
}
level = new_value;
#endif
if (level == NULL) {
return FAILURE;
}
if (strcasecmp(level, "debug") == 0) {
log_level = beast_log_debug;
} else if (strcasecmp(level, "notice") == 0) {
log_level = beast_log_notice;
} else if (strcasecmp(level, "error") == 0) {
log_level = beast_log_error;
} else {
return FAILURE;
}
return SUCCESS;
}
ZEND_INI_MH(php_beast_enable)
{
#if ZEND_MODULE_API_NO >= 20151012
if (ZSTR_LEN(new_value) == 0) {
return FAILURE;
}
if (!strcasecmp(ZSTR_VAL(new_value), "on")
|| !strcmp(ZSTR_VAL(new_value), "1"))
{
beast_enable = 1;
} else {
beast_enable = 0;
}
return SUCCESS;
#else
if (new_value_length == 0) {
return FAILURE;
}
if (!strcasecmp(new_value, "on")
|| !strcmp(new_value, "1"))
{
beast_enable = 1;
} else {
beast_enable = 0;
}
return SUCCESS;
#endif
}
ZEND_INI_MH(php_beast_set_networkcard)
{
#if ZEND_MODULE_API_NO >= 20151012
if (ZSTR_LEN(new_value) == 0) {
return FAILURE;
}
local_networkcard = estrdup(ZSTR_VAL(new_value));
if (local_networkcard == NULL) {
return FAILURE;
}
return SUCCESS;
#else
if (new_value_length == 0) {
return FAILURE;
}
local_networkcard = strdup(new_value);
if (local_networkcard == NULL) {
return FAILURE;
}
return SUCCESS;
#endif
}
ZEND_INI_MH(php_beast_set_log_normal_file)
{
#if ZEND_MODULE_API_NO >= 20151012
if (ZSTR_LEN(new_value) == 0) {
return FAILURE;
}
if (!strcasecmp(ZSTR_VAL(new_value), "on")
|| !strcmp(ZSTR_VAL(new_value), "1"))
{
log_normal_file = 1;
} else {
log_normal_file = 0;
}
return SUCCESS;
#else
if (new_value_length == 0) {
return FAILURE;
}
if (!strcasecmp(new_value, "on")
|| !strcmp(new_value, "1"))
{
log_normal_file = 1;
} else {
log_normal_file = 0;
}
return SUCCESS;
#endif
}