parser3/src/main/pa_common.C - diff

Return to pa_common.C CVS log

Up to [parser3project] / parser3 / src / main

Diff for /parser3/src/main/pa_common.C between versions 1.143.2.21.2.28 and 1.178

version 1.143.2.21.2.28, 2003/06/02 09:31:05	version 1.178, 2004/03/05 11:38:12
Line 1	Line 1
/** @file	/** @file
Parser: commonly functions.	Parser: commonly functions.

Copyright(c) 2001-2003 ArtLebedev Group (http://www.artlebedev.com)	Copyright(c) 2001-2004 ArtLebedev Group (http://www.artlebedev.com)
Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)	Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
*/	*/

static const char* IDENT_COMMON_C="$Date$";	static const char * const IDENT_COMMON_C="$Date$";

#include "pa_common.h"	#include "pa_common.h"
#include "pa_exception.h"	#include "pa_exception.h"
Line 19 static const char* IDENT_COMMON_C="$Date	Line 19 static const char* IDENT_COMMON_C="$Date
#ifdef PA_HTTP	#ifdef PA_HTTP
#include "pa_vstring.h"	#include "pa_vstring.h"
#include "pa_vint.h"	#include "pa_vint.h"
	#include "pa_vhash.h"
	#include "pa_vtable.h"

#ifdef CYGWIN	#ifdef CYGWIN
#define _GNU_H_WINDOWS32_SOCKETS	#define _GNU_H_WINDOWS32_SOCKETS
Line 62 int PASCAL closesocket(SOCKET);	Line 64 int PASCAL closesocket(SOCKET);
# endif	# endif
#endif	#endif

// locking constants	# ifndef INADDR_NONE
//#define PA_DEBUG_NO_LOCKING	# define INADDR_NONE ((ulong) -1)
	# endif
#ifdef PA_DEBUG_NO_LOCKING

#ifdef HAVE_FLOCK

static int lock_shared_blocking(int fd) { return flock(fd, LOCK_SH); }
static int lock_exclusive_blocking(int fd) { return flock(fd, LOCK_EX); }
static int lock_exclusive_nonblocking(int fd) { return flock(fd, LOCK_EX \|\| LOCK_NB); }
static int unlock(int fd) { return flock(fd, LOCK_UN); }

#else
#ifdef HAVE__LOCKING

#define FLOCK(operation) lseek(fd, 0, SEEK_SET); return _locking(fd, operation, 1)
static int lock_shared_blocking(int fd) { FLOCK(_LK_LOCK); }
static int lock_exclusive_blocking(int fd) { FLOCK(_LK_LOCK); }
static int lock_exclusive_nonblocking(int fd) { FLOCK(_LK_NBLCK); }
static int unlock(int fd) { FLOCK(_LK_UNLCK); }

#else
#ifdef HAVE_FCNTL

#define FLOCK(cmd, arg) struct flock ls={arg, SEEK_SET}; return fcntl(fd, cmd, &ls)
static int lock_shared_blocking(int fd) { FLOCK(F_SETLKW, F_RDLCK); }
static int lock_exclusive_blocking(int fd) { FLOCK(F_SETLKW, F_WRLCK); }
static int lock_exclusive_nonblocking(int fd) { FLOCK(F_SETLK, F_RDLCK); }
static int unlock(int fd) { FLOCK(F_SETLK, F_UNLCK); }

#else
#ifdef HAVE_LOCKF

#define FLOCK(fd, operation) lseek(fd, 0, SEEK_SET); return lockf(fd, operation, 1)
static int lock_shared_blocking(int fd) { FLOCK(F_LOCK); } // on intel solaris man doesn't have doc on shared blocking
static int lock_exclusive_blocking(int fd) { FLOCK(F_LOCK); }
static int lock_exclusive_nonblocking(int fd) { FLOCK(F_TLOCK); }
static int unlock(int fd) { FLOCK(F_TLOCK); }

#else

#error unable to find file locking func

#endif
#endif
#endif
#endif

#else
static int lock_shared_blocking(int fd) { return 0; }
static int lock_exclusive_blocking(int fd) { return 0; }
static int lock_exclusive_nonblocking(int fd) { return 0; }
static int unlock(int fd) { return 0; }

#endif

// defines for globals	// defines for globals

Line 126 static int unlock(int fd) { return 0; }	Line 76 static int unlock(int fd) { return 0; }

const String file_status_name(FILE_STATUS_NAME);	const String file_status_name(FILE_STATUS_NAME);

// defines for statics	// defines

#define HTTP_METHOD_NAME "method"	#define HTTP_METHOD_NAME "method"
#define HTTP_TIMEOUT_NAME "timeout"	#define HTTP_TIMEOUT_NAME "timeout"
#define HTTP_HEADERS_NAME "headers"	#define HTTP_HEADERS_NAME "headers"
#define HTTP_ANY_STATUS_NAME "any-status"	#define HTTP_ANY_STATUS_NAME "any-status"
#define HTTP_CHARSET_NAME "charset"	#define HTTP_CHARSET_NAME "charset"
	#define HTTP_TABLES_NAME "tables"
// statics	#define HTTP_USER "user"
	#define HTTP_PASSWORD "password"
static const String http_method_name(HTTP_METHOD_NAME);
static const String http_timeout_name(HTTP_TIMEOUT_NAME);
static const String http_headers_name(HTTP_HEADERS_NAME);
static const String http_any_status_name(HTTP_ANY_STATUS_NAME);
static const String http_charset_name(HTTP_CHARSET_NAME);

// defines	// defines

Line 183 char* file_read_text(Request_charsets& c	Line 128 char* file_read_text(Request_charsets& c
return file.success?file.str:0;	return file.success?file.str:0;
}	}

#ifdef PA_HTTP
//http request stuff	//http request stuff
	#ifdef PA_HTTP

	#undef CRLF
	#define CRLF "\r\n"

static bool set_addr(struct sockaddr_in addr, const char host, const short port){	static bool set_addr(struct sockaddr_in addr, const char host, const short port){
memset(addr, 0, sizeof(*addr));	memset(addr, 0, sizeof(*addr));
addr->sin_family=AF_INET;	addr->sin_family=AF_INET;
addr->sin_port=htons(port);	addr->sin_port=htons(port);
if(host) {	if(host) {
if(struct hostent *hostIP=gethostbyname(host))	ulong packed_ip=inet_addr(host);
	struct hostent *hostIP = packed_ip==INADDR_NONE?
	gethostbyname(host)
	: gethostbyaddr((char *)&packed_ip, sizeof(packed_ip), AF_INET);
	if(hostIP)
memcpy(&addr->sin_addr, hostIP->h_addr, hostIP->h_length);	memcpy(&addr->sin_addr, hostIP->h_addr, hostIP->h_length);
else	else
return false;	return false;
Line 200 static bool set_addr(struct sockaddr_in	Line 152 static bool set_addr(struct sockaddr_in
return true;	return true;
}	}

static int http_read_response(String& response, int sock, bool fail_on_status_ne_200){	static int http_read_response(char*& response, size_t& response_size, int sock, bool fail_on_status_ne_200){
	response=(char)pa_malloc_atomic(1/terminator*/); // setting memory block type
	response[(response_size=0)]=0;
int result=0;	int result=0;
size_t EOLat=0;	char* EOLat=0;
while(true) {	while(true) {
char *buf=new(PointerFreeGC) char[MAX_STRING];	char buf[MAX_STRING*10];
ssize_t size=recv(sock, buf, MAX_STRING, 0);	ssize_t received_size=recv(sock, buf, sizeof(buf), 0);
if(size<=0)	if(received_size<=0)
break;	break;
response.append_strdup(buf, size, String::L_TAINTED);	response=(char)pa_realloc(response, response_size+received_size+1/terminator*/);
if(!result && (EOLat=response.pos("\r\n", 2))!=STRING_NOT_FOUND) { // checking status in first response	memcpy(response+response_size, buf, received_size);
const String& status_line=response.mid(0, (size_t)EOLat);	response_size+=received_size;
	response[response_size]=0;

	if(!result && (EOLat=strstr(response, CRLF))) { // checking status in first response
	const String status_line(pa_strdup(response, EOLat-response));
ArrayString astatus;	ArrayString astatus;
size_t pos_after=0;	size_t pos_after=0;
status_line.split(astatus, pos_after, " ");	status_line.split(astatus, pos_after, " ");
Line 228 static int http_read_response(String& re	Line 186 static int http_read_response(String& re
else	else
throw Exception("http.response",	throw Exception("http.response",
0,	0,
"bad response from host - no status found (size=%lu)", response.length());	"bad response from host - no status found (size=%u)", response_size);
}	}

/* ******************** request ************************* */	/* ******************** request ************************* */
Line 244 static void timeout_handler(int sig){	Line 202 static void timeout_handler(int sig){
}	}
#endif	#endif

static int http_request(String& response,	static int http_request(char*& response, size_t& response_size,
const char* host, int port,	const char* host, int port,
const char* request,	const char* request,
int timeout,	int
	#ifdef PA_USE_ALARM
	timeout
	#endif
	,
bool fail_on_status_ne_200) {	bool fail_on_status_ne_200) {
if(!host)	if(!host)
throw Exception("http.host",	throw Exception("http.host",
Line 295 static int http_request(String& response	Line 257 static int http_request(String& response
0,	0,
"error sending request: %s (%d)", strerror(errno), errno);	"error sending request: %s (%d)", strerror(errno), errno);

result=http_read_response(response, sock, fail_on_status_ne_200);	result=http_read_response(response, response_size, sock, fail_on_status_ne_200);
closesocket(sock);	closesocket(sock);
#ifdef PA_USE_ALARM	#ifdef PA_USE_ALARM
alarm(0);	alarm(0);
Line 326 static void http_pass_header(HashStringV	Line 288 static void http_pass_header(HashStringV
Http_pass_header_info *info) {	Http_pass_header_info *info) {
*info->request <<key<<": "	*info->request <<key<<": "
<< attributed_meaning_to_string(*value, String::L_HTTP_HEADER, false)	<< attributed_meaning_to_string(*value, String::L_HTTP_HEADER, false)
<< "\n";	<< CRLF;

if(String(key, String::L_TAINTED).change_case(info->charsets->source(), String::CC_UPPER)=="USER-AGENT")	if(String(key, String::L_TAINTED).change_case(info->charsets->source(), String::CC_UPPER)=="USER-AGENT")
info->user_agent_specified=true;	info->user_agent_specified=true;
Line 334 static void http_pass_header(HashStringV	Line 296 static void http_pass_header(HashStringV


static Charset* detect_charset(Charset& source_charset, const String& content_type_value) {	static Charset* detect_charset(Charset& source_charset, const String& content_type_value) {
const StringBody CONTENT_TYPE_VALUE=	const String::Body CONTENT_TYPE_VALUE=
content_type_value.change_case(source_charset, String::CC_UPPER);	content_type_value.change_case(source_charset, String::CC_UPPER);
// content-type: xxx/xxx; source_charset=WE-NEED-THIS	// content-type: xxx/xxx; source_charset=WE-NEED-THIS
// content-type: xxx/xxx; source_charset="WE-NEED-THIS"	// content-type: xxx/xxx; source_charset="WE-NEED-THIS"
Line 356 static Charset* detect_charset(Charset&	Line 318 static Charset* detect_charset(Charset&
if(delim_pos!=STRING_NOT_FOUND)	if(delim_pos!=STRING_NOT_FOUND)
charset_end=delim_pos;	charset_end=delim_pos;
}	}
const StringBody CHARSET_NAME_BODY=	const String::Body CHARSET_NAME_BODY=
CONTENT_TYPE_VALUE.mid(charset_begin, charset_end);	CONTENT_TYPE_VALUE.mid(charset_begin, charset_end);

return &charsets.get(CHARSET_NAME_BODY);	return &charsets.get(CHARSET_NAME_BODY);
Line 365 static Charset* detect_charset(Charset&	Line 327 static Charset* detect_charset(Charset&
return 0;	return 0;
}	}

	static const String* basic_authorization_field(const char* user, const char* pass) {
	if(!user&& !pass)
	return 0;

	String combined;
	if(user)
	combined<<user;
	combined<<":";
	if(pass)
	combined<<pass;

	String* result=new String("Basic "); *result<<pa_base64(combined.cstr(), combined.length());
	return result;
	}

#ifndef DOXYGEN	#ifndef DOXYGEN
struct File_read_http_result {	struct File_read_http_result {
Line 372 struct File_read_http_result {	Line 348 struct File_read_http_result {
HashStringValue* headers;	HashStringValue* headers;
};	};
#endif	#endif
	/// @todo build .cookies field. use ^file.tables.SET-COOKIES.menu{ for now
static File_read_http_result file_read_http(Request_charsets& charsets,	static File_read_http_result file_read_http(Request_charsets& charsets,
const String& file_spec,	const String& file_spec,
HashStringValue *options=0) {	bool as_text,
	HashStringValue *options=0) {
File_read_http_result result;	File_read_http_result result;
char host[MAX_STRING];	char host[MAX_STRING];
const char* uri;	const char* uri;
Line 384 static File_read_http_result file_read_h	Line 362 static File_read_http_result file_read_h
bool fail_on_status_ne_200=true;	bool fail_on_status_ne_200=true;
Value* vheaders=0;	Value* vheaders=0;
Charset *asked_remote_charset=0;	Charset *asked_remote_charset=0;
	const char* user_cstr=0;
	const char* password_cstr=0;

if(options) {	if(options) {
int valid_options=0;	int valid_options=0;
if(Value* vmethod=options->get(http_method_name)) {	if(Value* vmethod=options->get(HTTP_METHOD_NAME)) {
valid_options++;	valid_options++;
method=vmethod->as_string().cstr();	method=vmethod->as_string().cstr();
}	}
if(Value* vtimeout=options->get(http_timeout_name)) {	if(Value* vtimeout=options->get(HTTP_TIMEOUT_NAME)) {
valid_options++;	valid_options++;
timeout=vtimeout->as_int();	timeout=vtimeout->as_int();
}	}
if(vheaders=options->get(http_headers_name)) {	if((vheaders=options->get(HTTP_HEADERS_NAME))) {
valid_options++;	valid_options++;
}	}
if(Value* vany_status=options->get(http_any_status_name)) {	if(Value* vany_status=options->get(HTTP_ANY_STATUS_NAME)) {
valid_options++;	valid_options++;
fail_on_status_ne_200=!vany_status->as_bool();	fail_on_status_ne_200=!vany_status->as_bool();
}	}
if(Value* vcharset_name=options->get(http_charset_name)) {	if(Value* vcharset_name=options->get(HTTP_CHARSET_NAME)) {
valid_options++;	valid_options++;
asked_remote_charset=&::charsets.get(vcharset_name->as_string().	asked_remote_charset=&::charsets.get(vcharset_name->as_string().
change_case(charsets.source(), String::CC_UPPER));	change_case(charsets.source(), String::CC_UPPER));
}	}
	if(Value* vuser=options->get(HTTP_USER)) {
	valid_options++;
	user_cstr=vuser->as_string().cstr();
	}
	if(Value* vpassword=options->get(HTTP_PASSWORD)) {
	valid_options++;
	password_cstr=vpassword->as_string().cstr();
	}

if(valid_options!=options->count())	if(valid_options!=options->count())
throw Exception("parser.runtime",	throw Exception("parser.runtime",
Line 442 static File_read_http_result file_read_h	Line 430 static File_read_http_result file_read_h
char* error_pos=0;	char* error_pos=0;
port=port_cstr?strtol(port_cstr, &error_pos, 0):80;	port=port_cstr?strtol(port_cstr, &error_pos, 0):80;


//making request	//making request
String request;	String request;
if(method)	if(method)
request<<method;	request<<method;
else	else
request<<"GET";	request<<"GET";
request<< " "<< uri <<" HTTP/1.0\n"	request<< " "<< uri <<" HTTP/1.0" CRLF
"host: "<< host <<"\n";	"host: "<< host << CRLF;

	if(const String* authorization_field_value=basic_authorization_field(user_cstr, password_cstr))
	request<<"Authorization: "<<*authorization_field_value<<CRLF;

bool user_agent_specified=false;	bool user_agent_specified=false;
if(vheaders && !vheaders->is_string()) { // allow empty	if(vheaders && !vheaders->is_string()) { // allow empty
if(HashStringValue *headers=vheaders->get_hash()) {	if(HashStringValue *headers=vheaders->get_hash()) {
Http_pass_header_info info={&charsets, &request};	Http_pass_header_info info={&charsets, &request, false};
headers->for_each(http_pass_header, &info);	headers->for_each(http_pass_header, &info);
user_agent_specified=info.user_agent_specified;	user_agent_specified=info.user_agent_specified;
} else	} else
Line 463 static File_read_http_result file_read_h	Line 454 static File_read_http_result file_read_h
"headers param must be hash");	"headers param must be hash");
};	};
if(!user_agent_specified) // defaulting	if(!user_agent_specified) // defaulting
request << "user-agent: " DEFAULT_USER_AGENT "\n";	request << "user-agent: " DEFAULT_USER_AGENT CRLF;
request<<"\n";	request << CRLF;

request_cstr=request.cstr(String::L_UNSPECIFIED);	request_cstr=request.cstr(String::L_UNSPECIFIED);
}	}
Line 476 static File_read_http_result file_read_h	Line 467 static File_read_http_result file_read_h
*asked_remote_charset);	*asked_remote_charset);

//sending request	//sending request
String response;	char* response;
int status_code=http_request(response,	size_t response_size;
	int status_code=http_request(response, response_size,
host, port, request_cstr,	host, port, request_cstr,
timeout, fail_on_status_ne_200);	timeout, fail_on_status_ne_200);

//processing results	//processing results
size_t pos=response.pos("\r\n\r\n", 4);	char* raw_body; size_t raw_body_size;
if(pos==STRING_NOT_FOUND \|\| pos<1) {	char* headers_end_at=strstr(response, CRLF CRLF /change '4' below along!/);
	if(headers_end_at) {
	raw_body=headers_end_at+4;
	raw_body_size=response_size-(raw_body-response);
	} else
throw Exception("http.response",	throw Exception("http.response",
&connect_string,	&connect_string,
"bad response from host - no headers found");	"bad response from host - no headers found");
}
const String& header_block=response.mid(0, pos);	*headers_end_at=0;
const String& raw_body=response.mid(pos+4, response.length());	const String header_block(response, headers_end_at-response, true);

ArrayString aheaders;	ArrayString aheaders;
result.headers=new HashStringValue;	result.headers=new HashStringValue;
	VHash* vtables=new VHash;
	result.headers->put(HTTP_TABLES_NAME, vtables);
	HashStringValue& tables=vtables->hash();

size_t pos_after=0;	size_t pos_after=0;
header_block.split(aheaders, pos_after, "\r\n");	header_block.split(aheaders, pos_after, CRLF);

//processing headers	//processing headers
size_t aheaders_count=aheaders.count();	size_t aheaders_count=aheaders.count();
Charset* real_remote_charset=0; // undetected, yet	Charset* real_remote_charset=0; // undetected, yet
for(size_t i=1; i<aheaders_count; i++) {	for(size_t i=1; i<aheaders_count; i++) {
const String& line=*aheaders.get(i);	const String& line=*aheaders.get(i);
pos=line.pos(": ", 2);	size_t pos=line.pos(": ", 2);
if(pos==STRING_NOT_FOUND \|\| pos<1)	if(pos==STRING_NOT_FOUND \|\| pos<1)
throw Exception("http.response",	throw Exception("http.response",
&connect_string,	&connect_string,
"bad response from host - bad header \"%s\"", line.cstr());	"bad response from host - bad header \"%s\"", line.cstr());
const StringBody HEADER_NAME=	const String::Body HEADER_NAME=
line.mid(0, pos).change_case(charsets.source(), String::CC_UPPER);	line.mid(0, pos).change_case(charsets.source(), String::CC_UPPER);
const String& header_value=line.mid(pos+2, line.length());	const String& header_value=line.mid(pos+2, line.length());
if(HEADER_NAME=="CONTENT-TYPE")	if(HEADER_NAME=="CONTENT-TYPE")
real_remote_charset=detect_charset(charsets.source(), header_value);	real_remote_charset=detect_charset(charsets.source(), header_value);

	// tables
	{
	Value valready=(Value )tables.get(HEADER_NAME);
	bool existed=valready!=0;
	Table *table;
	if(existed) {
	// second+ appearence
	table=valready->get_table();
	} else {
	// first appearence
	Table::columns_type columns =new ArrayString(1);
	*columns+=new String("value");
	table=new Table(columns);
	}
	// this string becomes next row
	ArrayString& row=*new ArrayString(1);
	row+=&header_value;
	*table+=&row;
	// not existed before? add it
	if(!existed)
	tables.put(HEADER_NAME, new VTable(table));
	}

result.headers->put(HEADER_NAME, new VString(header_value));	result.headers->put(HEADER_NAME, new VString(header_value));
}	}
// defaulting to used-asked charset [it's never empty!]	// defaulting to used-asked charset [it's never empty!]
Line 518 static File_read_http_result file_read_h	Line 542 static File_read_http_result file_read_h
real_remote_charset=asked_remote_charset;	real_remote_charset=asked_remote_charset;

// output response	// output response
String::C real_body=Charset::transcode(	String::C real_body=String::C(raw_body, raw_body_size);
String::C(raw_body.cstrm()/must be modifiable/, raw_body.length()),	if(as_text && raw_body_size) // must be checked because transcode returns CONST string in case length==0, which contradicts hacking few lines below
*real_remote_charset,	real_body=Charset::transcode(real_body, *real_remote_charset, charsets.source());
charsets.source());

result.str=const_cast<char *>(real_body.str); // hacking a little	result.str=const_cast<char *>(real_body.str); // hacking a little
result.length=real_body.length;	result.length=real_body.length;
Line 539 struct File_read_action_info {	Line 562 struct File_read_action_info {
static void file_read_action(	static void file_read_action(
struct stat& finfo,	struct stat& finfo,
int f,	int f,
const String& file_spec, const char* fname, bool as_text,	const String& file_spec, const char* /fname/, bool as_text,
void *context) {	void *context) {
File_read_action_info& info=static_cast<File_read_action_info >(context);	File_read_action_info& info=static_cast<File_read_action_info >(context);
if(size_t to_read_size=(size_t)finfo.st_size) {	if(size_t to_read_size=(size_t)finfo.st_size) {
Line 549 static void file_read_action(	Line 572 static void file_read_action(
if(ssize_t(info.data_size)<0 \|\| info.data_size>to_read_size)	if(ssize_t(info.data_size)<0 \|\| info.data_size>to_read_size)
throw Exception(0,	throw Exception(0,
&file_spec,	&file_spec,
"read failed: actually read %lu bytes count not in [0..%lu] valid range",	"read failed: actually read %u bytes count not in [0..%u] valid range",
*info.data_size, to_read_size);	*info.data_size, to_read_size);
} else { // empty file	} else { // empty file
if(as_text) {	if(as_text) {
Line 564 static void file_read_action(	Line 587 static void file_read_action(
File_read_result file_read(Request_charsets& charsets, const String& file_spec,	File_read_result file_read(Request_charsets& charsets, const String& file_spec,
bool as_text, HashStringValue *params,	bool as_text, HashStringValue *params,
bool fail_on_read_problem) {	bool fail_on_read_problem) {
File_read_result result={false};	File_read_result result={false, 0, 0, 0};
#ifdef PA_HTTP	#ifdef PA_HTTP
if(file_spec.starts_with("http://")) {	if(file_spec.starts_with("http://")) {
// fail on read problem	// fail on read problem
File_read_http_result http=file_read_http(charsets, file_spec, params);	File_read_http_result http=file_read_http(charsets, file_spec, as_text, params);
result.success=true;	result.success=true;
result.str=http.str;	result.str=http.str;
result.length=http.length;	result.length=http.length;
result.headers=http.headers;	result.headers=http.headers;
} else {	} else {
#endif	#endif
	if(params && params->count())
	throw Exception("parser.runtime",
	0,
	"invalid option passed");

File_read_action_info info={&result.str, &result.length};	File_read_action_info info={&result.str, &result.length};
result.success=file_read_action_under_lock(file_spec,	result.success=file_read_action_under_lock(file_spec,
"read", file_read_action, &info,	"read", file_read_action, &info,
Line 587 File_read_result file_read(Request_chars	Line 615 File_read_result file_read(Request_chars
// UTF-8 signature: EF BB BF	// UTF-8 signature: EF BB BF
if(result.length>=3) {	if(result.length>=3) {
char in=(char )result.str;	char in=(char )result.str;
if(strncmp(in, "\xEB\xBB\xBF", 3)==0) {	if(strncmp(in, "\xEF\xBB\xBF", 3)==0) {
result.str=in+3; result.length-=3;// skip prefix	result.str=in+3; result.length-=3;// skip prefix
}	}
}	}

fix_line_breaks((char *)(result.str), result.length);	fix_line_breaks((char *)(result.str), result.length);
// note: after fixing
((char*&)(result.str))[result.length]=0;
}	}

return result;	return result;
Line 635 bool file_read_action_under_lock(const S	Line 661 bool file_read_action_under_lock(const S
// later: it seems, even this does not help sometimes	// later: it seems, even this does not help sometimes
if((f=open(fname, O_RDONLY\|(as_text?_O_TEXT:_O_BINARY)))>=0) {	if((f=open(fname, O_RDONLY\|(as_text?_O_TEXT:_O_BINARY)))>=0) {
try {	try {
if(lock_shared_blocking(f)!=0)	if(pa_lock_shared_blocking(f)!=0)
throw Exception("file.lock",	throw Exception("file.lock",
&file_spec,	&file_spec,
"shared lock failed: %s (%d), actual filename '%s'",	"shared lock failed: %s (%d), actual filename '%s'",
Line 654 bool file_read_action_under_lock(const S	Line 680 bool file_read_action_under_lock(const S

action(finfo, f, file_spec, fname, as_text, context);	action(finfo, f, file_spec, fname, as_text, context);
} catch(...) {	} catch(...) {
unlock(f);close(f);	pa_unlock(f);close(f);
if(fail_on_read_problem)	if(fail_on_read_problem)
rethrow;	rethrow;
return false;	return false;
}	}

unlock(f);close(f);	pa_unlock(f);close(f);
return true;	return true;
} else {	} else {
if(fail_on_read_problem)	if(fail_on_read_problem)
Line 697 bool file_write_action_under_lock(	Line 723 bool file_write_action_under_lock(
O_CREAT\|O_RDWR	O_CREAT\|O_RDWR
\|(as_text?_O_TEXT:_O_BINARY)	\|(as_text?_O_TEXT:_O_BINARY)
\|(do_append?O_APPEND:PA_O_TRUNC), 0664))>=0) {	\|(do_append?O_APPEND:PA_O_TRUNC), 0664))>=0) {
if((do_block?lock_exclusive_blocking(f):lock_exclusive_nonblocking(f))!=0) {	if((do_block?pa_lock_exclusive_blocking(f):pa_lock_exclusive_nonblocking(f))!=0) {
Exception e("file.lock",	Exception e("file.lock",
&file_spec,	&file_spec,
"shared lock failed: %s (%d), actual filename '%s'",	"shared lock failed: %s (%d), actual filename '%s'",
Line 715 bool file_write_action_under_lock(	Line 741 bool file_write_action_under_lock(
if(!do_append)	if(!do_append)
ftruncate(f, lseek(f, 0, SEEK_CUR)); // one can not use O_TRUNC, read lower	ftruncate(f, lseek(f, 0, SEEK_CUR)); // one can not use O_TRUNC, read lower
#endif	#endif
unlock(f);close(f);	pa_unlock(f);close(f);
rethrow;	rethrow;
}	}

Line 723 bool file_write_action_under_lock(	Line 749 bool file_write_action_under_lock(
if(!do_append)	if(!do_append)
ftruncate(f, lseek(f, 0, SEEK_CUR)); // O_TRUNC truncates even exclusevely write-locked file [thanks to Igor Milyakov <virtan@rotabanner.com> for discovering]	ftruncate(f, lseek(f, 0, SEEK_CUR)); // O_TRUNC truncates even exclusevely write-locked file [thanks to Igor Milyakov <virtan@rotabanner.com> for discovering]
#endif	#endif
unlock(f);close(f);	pa_unlock(f);close(f);
return true;	return true;
} else	} else
throw Exception(errno==EACCES?"file.access":0,	throw Exception(errno==EACCES?"file.access":0,
Line 769 static void rmdir(const String& file_spe	Line 795 static void rmdir(const String& file_spe

rmdir(file_spec.mid(0, pos_after-1/* / */).cstr(String::L_FILE_SPEC));	rmdir(file_spec.mid(0, pos_after-1/* / */).cstr(String::L_FILE_SPEC));
}	}
bool file_delete(const String& file_spec, bool fail_on_read_problem) {	bool file_delete(const String& file_spec, bool fail_on_problem) {
const char* fname=file_spec.cstr(String::L_FILE_SPEC);	const char* fname=file_spec.cstr(String::L_FILE_SPEC);
if(unlink(fname)!=0)	if(unlink(fname)!=0)
if(fail_on_read_problem)	if(fail_on_problem)
throw Exception(errno==EACCES?"file.access":errno==ENOENT?"file.missing":0,	throw Exception(errno==EACCES?"file.access":errno==ENOENT?"file.missing":0,
&file_spec,	&file_spec,
"unlink failed: %s (%d), actual filename '%s'",	"unlink failed: %s (%d), actual filename '%s'",
Line 1063 int __vsnprintf(char* b, size_t s, const	Line 1089 int __vsnprintf(char* b, size_t s, const
// note: on win32& maybe somewhere else	// note: on win32& maybe somewhere else
// vsnprintf do not writes terminating 0 in 'buffer full' case, reducing	// vsnprintf do not writes terminating 0 in 'buffer full' case, reducing
--s;	--s;

	// clients do not check for negative 's', feature: ignore such prints
	if((ssize_t)s<0)
	return 0;

#if _MSC_VER	#if _MSC_VER
/*	/*
win32:	win32:
Line 1088 int __vsnprintf(char* b, size_t s, const	Line 1119 int __vsnprintf(char* b, size_t s, const

if(r<0)	if(r<0)
r=0;	r=0;
else if(r>s)	else if((size_t)r>s)
r=s;	r=s;
#endif	#endif
b[r]=0;	b[r]=0;
Line 1103 int __snprintf(char* b, size_t s, const	Line 1134 int __snprintf(char* b, size_t s, const
return r;	return r;
}	}

int pa_sleep(unsigned long secs, unsigned long usecs) {	/* mime64 functions are from libgmime[http://spruce.sourceforge.net/gmime/] lib */
for (; usecs >= 1000000; ++secs, usecs -= 1000000);	/*
	* Authors: Michael Zucchi <notzed@helixcode.com>
	* Jeffrey Stedfast <fejj@helixcode.com>
	*
	* Copyright 2000 Helix Code, Inc. (www.helixcode.com)
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License as published by
	* the Free Software Foundation; either version 2 of the License, or
	* (at your option) any later version.
	*
	* This program is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	* GNU General Public License for more details.
	*
	* You should have received a copy of the GNU General Public License
	* along with this program; if not, write to the Free Software
	* Foundation, Inc., 59 Temple Street #330, Boston, MA 02111-1307, USA.
	*
	*/
	static char *base64_alphabet =
	"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";

	/**
	* g_mime_utils_base64_encode_step:
	* @in: input stream
	* @inlen: length of the input
	* @out: output string
	* @state: holds the number of bits that are stored in @save
	* @save: leftover bits that have not yet been encoded
	*
	* Base64 encodes a chunk of data. Performs an 'encode step', only
	* encodes blocks of 3 characters to the output at a time, saves
	* left-over state in state and save (initialise to 0 on first
	* invocation).
	*
	* Returns the number of bytes encoded.
	**/
	static size_t
	g_mime_utils_base64_encode_step (const unsigned char in, size_t inlen, unsigned char out, int state, int save)
	{
	const register unsigned char *inptr;
	register unsigned char *outptr;

	if (inlen <= 0)
	return 0;

	inptr = in;
	outptr = out;

	if (inlen + ((unsigned char *)save)[0] > 2) {
	const unsigned char *inend = in + inlen - 2;
	register int c1 = 0, c2 = 0, c3 = 0;
	register int already;

	already = *state;

	switch (((char *)save)[0]) {
	case 1: c1 = ((unsigned char *)save)[1]; goto skip1;
	case 2: c1 = ((unsigned char *)save)[1];
	c2 = ((unsigned char *)save)[2]; goto skip2;
	}

	/* yes, we jump into the loop, no i'm not going to change it, its beautiful! */
	while (inptr < inend) {
	c1 = *inptr++;
	skip1:
	c2 = *inptr++;
	skip2:
	c3 = *inptr++;
	*outptr++ = base64_alphabet [c1 >> 2];
	*outptr++ = base64_alphabet [(c2 >> 4) \| ((c1 & 0x3) << 4)];
	*outptr++ = base64_alphabet [((c2 & 0x0f) << 2) \| (c3 >> 6)];
	*outptr++ = base64_alphabet [c3 & 0x3f];
	/* this is a bit ugly ... */
	if ((++already) >= 19) {
	*outptr++ = '\n';
	already = 0;
	}
	}

	((unsigned char *)save)[0] = 0;
	inlen = 2 - (inptr - inend);
	*state = already;
	}

	//d(printf ("state = %d, inlen = %d\n", (int)((char *)save)[0], inlen));

	if (inlen > 0) {
	register char *saveout;

	/* points to the slot for the next char to save */
	saveout = & (((char )save)[1]) + ((char )save)[0];

	/* inlen can only be 0 1 or 2 */
	switch (inlen) {
	case 2: saveout++ = inptr++;
	case 1: saveout++ = inptr++;
	}
	((char *)save)[0] += inlen;
	}

	/*d(printf ("mode = %d\nc1 = %c\nc2 = %c\n",
	(int)((char *)save)[0],
	(int)((char *)save)[1],
	(int)((char )save)[2]));/

	return (outptr - out);
	}

#ifdef WIN32	/**
Sleep(secs * 1000 + usecs / 1000);	* g_mime_utils_base64_encode_close:
return 0;	* @in: input stream
#else	* @inlen: length of the input
struct timeval t;	* @out: output string
t.tv_sec = secs;	* @state: holds the number of bits that are stored in @save
t.tv_usec = usecs;	* @save: leftover bits that have not yet been encoded
return (select(0, NULL, NULL, NULL, &t) == -1 ? errno : 0);	*
#endif	* Base64 encodes the input stream to the output stream. Call this
	* when finished encoding data with g_mime_utils_base64_encode_step to
	* flush off the last little bit.
	*
	* Returns the number of bytes encoded.
	**/
	static size_t
	g_mime_utils_base64_encode_close (const unsigned char in, size_t inlen, unsigned char out, int state, int save)
	{
	unsigned char *outptr = out;
	int c1, c2;

	if (inlen > 0)
	outptr += g_mime_utils_base64_encode_step (in, inlen, outptr, state, save);

	c1 = ((unsigned char *)save)[1];
	c2 = ((unsigned char *)save)[2];

	switch (((unsigned char *)save)[0]) {
	case 2:
	outptr[2] = base64_alphabet [(c2 & 0x0f) << 2];
	goto skip;
	case 1:
	outptr[2] = '=';
	skip:
	outptr[0] = base64_alphabet [c1 >> 2];
	outptr[1] = base64_alphabet [c2 >> 4 \| ((c1 & 0x3) << 4)];
	outptr[3] = '=';
	outptr += 4;
	break;
	}

	*outptr++ = 0;

	*save = 0;
	*state = 0;

	return (outptr - out);
}	}

	char* pa_base64(const char *in, size_t len)
	{
	/* wont go to more than 2x size (overly conservative) */
	char* result=new(PointerFreeGC) char[len * 2 + 6];
	int state=0;
	int save=0;
	size_t filled=g_mime_utils_base64_encode_close ((const unsigned char*)in, len,
	(unsigned char*)result, &state, &save);
	assert(filled <= len * 2 + 6);

	return result;
	}

E-mail:

Removed from v.1.143.2.21.2.28
changed lines
	Added in v.1.178