--- parser3/src/include/pa_common.h 2001/02/20 18:45:51 1.2 +++ parser3/src/include/pa_common.h 2007/02/07 15:49:51 1.112 @@ -1,21 +1,296 @@ -/* - $Id: pa_common.h,v 1.2 2001/02/20 18:45:51 paf Exp $ +/** @file + Parser: commonly used functions. + + Copyright (c) 2001-2005 ArtLebedev Group (http://www.artlebedev.com) + Author: Alexandr Petrosian (http://paf.design.ru) */ #ifndef PA_COMMON_H #define PA_COMMON_H -#include -#include "pa_pool.h" +static const char * const IDENT_COMMON_H="$Date: 2007/02/07 15:49:51 $"; -#ifdef WIN32 +#include "pa_string.h" +#include "pa_hash.h" + +class Value; +typedef Hash HashStringValue; + +// replace system s*nprintf with our versions +#undef vsnprintf +int __vsnprintf(char *, size_t, const char* , va_list); #define vsnprintf __vsnprintf +#undef snprintf +int __snprintf(char *, size_t, const char* , ...); #define snprintf __snprintf -int __vsnprintf(char *, size_t, const char *, va_list); -int __snprintf(char *, size_t, const char *, ...); +#if _MSC_VER +/* +inline int open( const char* filename, int oflag ) { return _open(filename, oflag); } +inline int close( int handle ) { return _close(handle); } +inline int read( int handle, void *buffer, unsigned int count ) { return _read(handle,buffer,count); } +inline int write( int handle, const void *buffer, unsigned int count ) { return _write(handle,buffer,count); } +inline int stat( const char* path, struct _stat *buffer ) { return _stat(path, buffer); } +inline long lseek( int handle, long offset, int origin ) { return _lseek(handle, offset, origin); } +*/ + +//access +#define F_OK 0 +#define X_OK 1 +#define W_OK 2 +#define R_OK 4 + +#ifndef strcasecmp +# define strcasecmp _stricmp #endif +#ifndef strncasecmp +# define strncasecmp _strnicmp +#endif +#ifndef mkdir +# define mkdir(path, mode) _mkdir(path) +#endif + +#ifndef putenv +# define putenv _putenv +#endif + +#endif + +/** under WIN32 "t" mode fixes DOS chars OK, + can't say that about other systems/ line break styles +*/ +void fix_line_breaks( + char *str, + size_t& length///< may change! used to speedup next actions + ); + +int pa_lock_shared_blocking(int fd); +int pa_lock_exclusive_blocking(int fd); +int pa_lock_exclusive_nonblocking(int fd); +int pa_unlock(int fd); + +void create_dir_for_file(const String& file_spec); + +typedef void (*File_read_action)( + struct stat& finfo, + int f, + const String& file_spec, const char* fname, bool as_text, + void *context); + +/** + shared-lock specified file, + do actions under lock. + if fail_on_read_problem is true[default] throws an exception + + @returns true if read OK +*/ +bool file_read_action_under_lock(const String& file_spec, + const char* action_name, File_read_action action, void *context, + bool as_text=false, + bool fail_on_read_problem=true); +/** + read specified text file using + if fail_on_read_problem is true[default] throws an exception + + WARNING: charset is used for http header case conversion, it's not a charset of input file! + + @returns true if read OK +*/ +char *file_read_text(Request_charsets& charsets, + const String& file_spec, + bool fail_on_read_problem=true, + HashStringValue* options=0/*, HashStringValue* * out_fields=0*/); + +struct File_read_result { + bool success; + char* str; size_t length; + HashStringValue* headers; +}; + +/** + read specified file using + if fail_on_read_problem is true[default] throws an exception + + WARNING: charset is used for http header case conversion, it's not a charset of input file! + + @returns true if read OK +*/ +File_read_result file_read(Request_charsets& charsets, + const String& file_spec, + bool as_text, + HashStringValue* options=0, + bool fail_on_read_problem=true, + char* buf=0, size_t offset=0, size_t size=0); + +typedef void (*File_write_action)(int f, void *context); + +/** + lock specified file exclusively, + do actions under lock. + throws an exception in case of problems + + if block=false does non-blocking lock + @returns true if locked OK, or false if non-blocking locking failed +*/ +bool file_write_action_under_lock( + const String& file_spec, + const char* action_name, File_write_action action, void *context, + bool as_text=false, + bool do_append=false, + bool do_block=true, + bool fail_on_lock_problem=true); + +/** + write data to specified file, + throws an exception in case of problems +*/ +void file_write( + const String& file_spec, + const char* data, size_t size, + bool as_text, + bool do_append=false); + +/** + delete specified file + throws an exception in case of problems +*/ +bool file_delete(const String& file_spec, bool fail_on_problem=true); +/** + move specified file + throws an exception in case of problems +*/ +void file_move(const String& old_spec, const String& new_spec); + +bool entry_exists(const char* fname, struct stat *afinfo=0); +bool entry_exists(const String& file_spec); +bool file_exist(const String& file_spec); +bool dir_exists(const String& file_spec); +const String* file_exist(const String& path, const String& name); +bool file_executable(const String& file_spec); + +bool file_stat(const String& file_spec, + size_t& rsize, + time_t& ratime, + time_t& rmtime, + time_t& rctime, + bool fail_on_read_problem=true); + +/** + scans for @a delim[default \n] in @a *row_ref, + @return piece of line before it or end of string, if no @a delim found + assigns @a *row_ref to point right after delimiter if there were one + or to zero if no @a delim were found. +*/ +char *getrow(char **row_ref,char delim='\n'); +char *lsplit(char *string, char delim); +char *lsplit(char **string_ref,char delim); +char *rsplit(char *string, char delim); +const char* format(double value, char *fmt); + +size_t stdout_write(const void *buf, size_t size); + +char *unescape_chars(const char* cp, int len); + +#ifdef WIN32 +void back_slashes_to_slashes(char *s); +//void slashes_to_back_slashes(char *s); +#endif + +#ifndef _qsort +# define _qsort(names,cnt,sizeof_names,func_addr) \ + qsort(names,cnt,sizeof_names,func_addr) +#endif + +bool StrEqNc(const char* s1, const char* s2, bool strict=true); + +#define SECS_PER_DAY (60*60*24) +int getMonthDays(int year, int month); + +void remove_crlf(char *start, char *end); + +#ifdef PA_SAFE_MODE +void check_safe_mode(struct stat finfo, const String& file_spec, const char* fname); +#endif + +void pa_base64_decode(const char *in, size_t in_size, char*& result, size_t& result_size); +char* pa_base64_encode(const char *in, size_t in_size); +struct File_base64_action_info { + unsigned char** base64; +}; +char* pa_base64_encode(const String& file_spec); +static void file_base64_file_action( + struct stat& finfo, + int f, + const String&, const char* /*fname*/, bool, + void *context); + +#define FILE_BUFFER_SIZE 4096 +static unsigned long crc32Table[256]; +static void InitCrc32Table() +{ + if(crc32Table[1] == 0){ + // This is the official polynomial used by CRC32 in PKZip. + // Often times the polynomial shown reversed as 0x04C11DB7. + static const unsigned long dwPolynomial = 0xEDB88320; + + for(int i = 0; i < 256; i++) + { + unsigned long dwCrc = i; + for(int j = 8; j > 0; j--) + { + if(dwCrc & 1) + dwCrc = (dwCrc >> 1) ^ dwPolynomial; + else + dwCrc >>= 1; + } + crc32Table[i] = dwCrc; + } + } +} + +int file_block_read(const int f, unsigned char* buffer, const size_t size); + +inline void CalcCrc32(const unsigned char byte, unsigned long &crc32) +{ + crc32 = ((crc32) >> 8) ^ crc32Table[(byte) ^ ((crc32) & 0x000000FF)]; +} + +const unsigned long pa_crc32(const char *in, size_t in_size); +const unsigned long pa_crc32(const String& file_spec); +static void file_crc32_file_action( + struct stat& finfo, + int f, + const String&, const char* /*fname*/, bool, + void *context); + +static const char* hex_string(unsigned char* bytes, size_t size, bool upcase) { + char *bytes_hex=new(PointerFreeGC) char [size*2/*byte->hh*/+1/*for zero-teminator*/]; + unsigned char *src=bytes; + unsigned char *end=bytes+size; + char *dest=bytes_hex; + + const char *hex=upcase?"0123456789ABCDEF":"0123456789abcdef"; + + for(; src