parser3/src/main/pa_common.C - diff

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Diff for /parser3/src/main/pa_common.C between versions 1.143.2.21.2.8 and 1.143.2.21.2.19

version 1.143.2.21.2.8, 2003/03/21 13:42:31	version 1.143.2.21.2.19, 2003/04/01 16:16:23
Line 12 static const char* IDENT_COMMON_C="$Date	Line 12 static const char* IDENT_COMMON_C="$Date
#include "pa_hash.h"	#include "pa_hash.h"
#include "pa_globals.h"	#include "pa_globals.h"

//#define PA_HTTP	#define PA_HTTP

#ifdef PA_HTTP	#ifdef PA_HTTP
#include "pa_vstring.h"	#include "pa_vstring.h"
Line 61 int PASCAL closesocket(SOCKET);	Line 61 int PASCAL closesocket(SOCKET);
#endif	#endif

// locking constants	// locking constants
	//#define PA_DEBUG_NO_LOCKING

	#ifdef PA_DEBUG_NO_LOCKING

#ifdef HAVE_FLOCK	#ifdef HAVE_FLOCK

Line 105 static int unlock(int fd) { FLOCK(F_TLOC	Line 108 static int unlock(int fd) { FLOCK(F_TLOC
#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

#define FILE_STATUS_NAME "status"	#define FILE_STATUS_NAME "status"
Line 187 static bool set_addr(struct sockaddr_in	Line 198 static bool set_addr(struct sockaddr_in
return true;	return true;
}	}

static int http_read_responseString& response, int sock, bool fail_on_status_ne_200){	static int http_read_response(String& response, int sock, bool fail_on_status_ne_200){
int result=0;	int result=0;
ssize_t EOLat=0;	size_t EOLat=0;
while(true) {	while(true) {
char *buf=new(PointerFreeGC) char[MAX_STRING];	char *buf=new(PointerFreeGC) char[MAX_STRING];
ssize_t size=recv(sock, buf, MAX_STRING, 0);	ssize_t size=recv(sock, buf, MAX_STRING, 0);
if(size<=0)	if(size<=0)
break;	break;
response.APPEND_TAINTED(buf, size, "remote HTTP server response", 0);	response.append_strdup(buf, size, String::L_TAINTED);
if(!result && (EOLat=response.pos("\r\n", 2))>=0) { // checking status in first response	if(!result && (EOLat=response.pos("\r\n", 2))!=STRING_NOT_FOUND) { // checking status in first response
const String& status_line=response.mid(0, (size_t)EOLat);	const String& status_line=response.mid(0, (size_t)EOLat);
ArrayString astatus;	ArrayString astatus;
status_line->split(astatus, 0, " ", 1);	size_t pos_after=0;
const String& status_code=astatus.get(1);	status_line.split(astatus, pos_after, " ");
result=status_code->as_int();	const String& status_code=*astatus.get(1);
	result=status_code.as_int();

if(fail_on_status_ne_200 && result!=200)	if(fail_on_status_ne_200 && result!=200)
throw Exception("http.status",	throw Exception("http.status",
status_code,	&status_code,
"invalid HTTP response status");	"invalid HTTP response status");
}	}
}	}
Line 231 static void timeout_handler(int sig){	Line 243 static void timeout_handler(int sig){
#endif	#endif

static int http_request(	static int http_request(
String& response,	String& response,
const String* origin_string,	const char* host, int port,
const char* host, int port,	const char* request,
const char* request,	int timeout,
int timeout,	bool fail_on_status_ne_200) {
bool fail_on_status_ne_200) {
if(!host)	if(!host)
throw Exception("http.host",	throw Exception("http.host",
origin_string,	0,
"zero hostname"); //never	"zero hostname"); //never

#ifdef WE_CAN_USE_ALARM	#ifdef WE_CAN_USE_ALARM
Line 251 static int http_request(	Line 262 static int http_request(
#ifdef WE_CAN_USE_ALARM	#ifdef WE_CAN_USE_ALARM
if(sigsetjmp(timeout_env, 1))	if(sigsetjmp(timeout_env, 1))
throw Exception("http.timeout",	throw Exception("http.timeout",
origin_string,	0,
"timeout occured while retrieving document");	"timeout occured while retrieving document");
else {	else {
alarm(timeout);	alarm(timeout);
Line 260 static int http_request(	Line 271 static int http_request(

if(!set_addr(&dest, host, port))	if(!set_addr(&dest, host, port))
throw Exception("http.host",	throw Exception("http.host",
origin_string,	0,
"can not resolve hostname \"%s\"", host);	"can not resolve hostname \"%s\"", host);

if((sock=socket(AF_INET, SOCK_STREAM, IPPROTO_TCP/0/))<0)	if((sock=socket(AF_INET, SOCK_STREAM, IPPROTO_TCP/0/))<0)
throw Exception("http.connect",	throw Exception("http.connect",
origin_string,	0,
"can not make socket: %s (%d)", strerror(errno), errno);	"can not make socket: %s (%d)", strerror(errno), errno);
if(connect(sock, (struct sockaddr *)&dest, sizeof(dest)))	if(connect(sock, (struct sockaddr *)&dest, sizeof(dest)))
throw Exception("http.connect",	throw Exception("http.connect",
origin_string,	0,
"can not connect to host \"%s\": %s (%d)", host, strerror(errno), errno);	"can not connect to host \"%s\": %s (%d)", host, strerror(errno), errno);
size_t request_size=strlen(request);	size_t request_size=strlen(request);
if(send(sock, request, request_size, 0)!=(ssize_t)request_size)	if(send(sock, request, request_size, 0)!=(ssize_t)request_size)
throw Exception("http.connect",	throw Exception("http.connect",
origin_string,	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, sock, fail_on_status_ne_200);
Line 296 static int http_request(	Line 307 static int http_request(

#ifndef DOXYGEN	#ifndef DOXYGEN
struct Http_pass_header_info {	struct Http_pass_header_info {
;
Charset* charset;	Charset* charset;
String* request;	String* request;
bool user_agent_specified;	bool user_agent_specified;
};	};
#endif	#endif
static void http_pass_header(HashStringValue::key_type key, HashStringValue::value_type value,	static void http_pass_header(HashStringValue::key_type key, HashStringValue::value_type value,
Http_pass_header_info *info) {	Http_pass_header_info *info) {
(info->request)<<key<<": "	*info->request <<key<<": "
<< attributed_meaning_to_string(info->value, String::L_HTTP_HEADER, false)	<< attributed_meaning_to_string(*value, String::L_HTTP_HEADER, false)
<<"\n";	<< "\n";

if(key->change_case(info->*info->charset, String::CC_UPPER)=="USER-AGENT")	if(String(key, String::L_TAINTED).change_case(*info->charset, String::CC_UPPER)=="USER-AGENT")
info->user_agent_specified=true;	info->user_agent_specified=true;
}	}
#ifndef DOXYGEN	#ifndef DOXYGEN
struct File_read_http_result {	struct File_read_http_result {
char *data; size_t size;	char *str; size_t length;
HashStringValue* headers;	HashStringValue* headers;
};	};
#endif	#endif
static File_read_http_result file_read_httpCharset& charset, const String& file_spec,	static File_read_http_result file_read_http(Charset& charset, const String& file_spec,
HashStringValue *options=0) {	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;
int port;	int port;
const char* method(0);	const char* method=0;
int timeout=2;	int timeout=2;
bool fail_on_status_ne_200=true;	bool fail_on_status_ne_200=true;
Value* vheaders(0);	Value* vheaders=0;

const String& connect_string(new String());	String& connect_string=*new String;
// not in ^sql{... L_SQL ...} spirit, but closer to ^file::load one	// not in ^sql{... L_SQL ...} spirit, but closer to ^file::load one
connect_string->append(*file_spec, String::L_URI); // tainted pieces -> URI pieces	connect_string.append(file_spec, String::L_URI); // tainted pieces -> URI pieces

const char* connect_string_cstr=connect_string->cstr(String::L_UNSPECIFIED);	const char* connect_string_cstr=connect_string.cstr(String::L_UNSPECIFIED);
const char* current=connect_string_cstr;	const char* current=connect_string_cstr;
if(strncmp(current, "http://", 7)!=0)	if(strncmp(current, "http://", 7)!=0)
throw Exception(0,	throw Exception(0,
connect_string,	&connect_string,
"does not start with http://"); //never	"does not start with http://"); //never
current+=7;	current+=7;

Line 351 static File_read_http_result file_read_h	Line 361 static File_read_http_result file_read_h
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++;
Line 380 static File_read_http_result file_read_h	Line 390 static File_read_http_result file_read_h
request<< " "<< uri <<" HTTP/1.0\nHost: "<< host<<"\n";	request<< " "<< uri <<" HTTP/1.0\nHost: "<< host<<"\n";
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(connect_string)) {	if(HashStringValue *headers=vheaders->get_hash()) {
Http_pass_header_info info={&&charset, &request};	Http_pass_header_info info={&charset, &request};
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
throw Exception("parser.runtime",	throw Exception("parser.runtime",
connect_string,	&connect_string,
"headers param must be hash");	"headers param must be hash");
};	};
if(!user_agent_specified) // defaulting	if(!user_agent_specified) // defaulting
Line 397 static File_read_http_result file_read_h	Line 407 static File_read_http_result file_read_h
String response;	String response;
const char* request_cstr=request.cstr(String::L_UNSPECIFIED);	const char* request_cstr=request.cstr(String::L_UNSPECIFIED);
int status_code=http_request(response,	int status_code=http_request(response,
connect_string, host, port, request_cstr,	host, port, request_cstr,
timeout, fail_on_status_ne_200);	timeout, fail_on_status_ne_200);

//processing results	//processing results
int pos=response.pos("\r\n\r\n", 4);	size_t pos=response.pos("\r\n\r\n", 4);
if(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 - no headers found");	"bad response from host - no headers found");
}	}
const String& header_block=response.mid(0, pos);	const String& header_block=response.mid(0, pos);
const String& body=response.mid(pos+4, response.length());	const String& body=response.mid(pos+4, response.length());

ArrayString aheaders;	ArrayString aheaders;
result.headers=HashStringValue* (new HashStringValue);	result.headers=new HashStringValue;
header_block->split(aheaders, 0, "\r\n", 2);	size_t pos_after=0;
	header_block.split(aheaders, pos_after, "\r\n");

//processing headers	//processing headers
for(int i=1; i<aheaders.count(); i++) {	size_t aheaders_count=aheaders.count();
const String& line=aheaders.get(i);	for(size_t i=1; i<aheaders_count; i++) {
pos=line->pos(": ", 2);	const String& line=*aheaders.get(i);
if(pos<1)	pos=line.pos(": ", 2);
	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().get());	"bad response from host - bad header \"%s\"", line.cstr());

result.headers->put(	result.headers->put(
line->mid(0, pos)->change_case(charset, String::CC_UPPER),	line.mid(0, pos).change_case(charset, String::CC_UPPER),
Value*(new VString(line->mid(pos+2, line->length()))));	new VString(line.mid(pos+2, line.length())));
}	}

// output response	// output response
result.str=new(PointerFreeGC) char[1/as text puts terminating zero later/+(result.length=body->length())];	result.str=body.cstrm();
body->store_to(result.str, String::L_AS_IS);	result.length=body.length();
result.headers->put(file_status_name, Value*(new VInt(status_code)));	result.headers->put(file_status_name, new VInt(status_code));
return result;	return result;
}	}

Line 470 static void file_read_action(	Line 482 static void file_read_action(
File_read_result file_read(Charset& charset, const String& file_spec,	File_read_result file_read(Charset& charset, 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;	File_read_result result={false};
#ifdef PA_HTTP	#ifdef PA_HTTP
if(file_spec.starts_with("http://", 7)) {	if(file_spec.starts_with("http://")) {
// fail on read problem	// fail on read problem
File_read_http_result http=file_read_http(charset, file_spec, params);	File_read_http_result http;//=file_read_http(charset, file_spec, params);
result.success=true;	result.success=true;
result.str=http.data;	result.str="HELLO";//http.str;
result.length=http.size;	result.length=5;//http.length;
result.headers=http.headers;	result.headers=new HashStringValue;//http.headers;
} else {	} else {
#endif	#endif
File_read_action_info info={&result.str, &result.length};	File_read_action_info info={&result.str, &result.length};
Line 569 bool file_read_action_under_lock(const S	Line 581 bool file_read_action_under_lock(const S

static void create_dir_for_file(const String& file_spec) {	static void create_dir_for_file(const String& file_spec) {
size_t pos_after=1;	size_t pos_after=1;
int pos_before;	size_t pos_before;
while((pos_before=file_spec.pos("/", pos_after))>=0) {	while((pos_before=file_spec.pos('/', pos_after))!=STRING_NOT_FOUND) {
mkdir(file_spec.mid(0, pos_before).cstr(String::L_FILE_SPEC), 0775);	mkdir(file_spec.mid(0, pos_before).cstr(String::L_FILE_SPEC), 0775);
pos_after=pos_before+1;	pos_after=pos_before+1;
}	}
Line 658 void file_write(	Line 670 void file_write(

// throws nothing! [this is required in file_move & file_delete]	// throws nothing! [this is required in file_move & file_delete]
static void rmdir(const String& file_spec, size_t pos_after) {	static void rmdir(const String& file_spec, size_t pos_after) {
int pos_before;	size_t pos_before;
if((pos_before=file_spec.pos("/", pos_after))>=0)	if((pos_before=file_spec.pos('/', pos_after))!=STRING_NOT_FOUND)
rmdir(file_spec, pos_before+1);	rmdir(file_spec, pos_before+1);

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));
Line 732 bool file_readable(const String& file_sp	Line 744 bool file_readable(const String& file_sp
bool dir_readable(const String& file_spec) {	bool dir_readable(const String& file_spec) {
return entry_readable(file_spec, true);	return entry_readable(file_spec, true);
}	}
const String* file_readable(String& path, String& name) {	const String* file_readable(const String& path, const String& name) {
String& result=*new String(path);	String& result=*new String(path);
result << "/";	result << "/";
result << name;	result << name;
Line 749 bool file_stat(const String& file_spec,	Line 761 bool file_stat(const String& file_spec,
time_t& rctime,	time_t& rctime,
bool fail_on_read_problem) {	bool fail_on_read_problem) {
const char* fname=file_spec.cstr(String::L_FILE_SPEC);	const char* fname=file_spec.cstr(String::L_FILE_SPEC);
struct stat finfo;	struct stat finfo;
if(stat(fname, &finfo)!=0)	if(stat(fname, &finfo)!=0)
if(fail_on_read_problem)	if(fail_on_read_problem)
throw Exception("file.missing",	throw Exception("file.missing",

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Removed from v.1.143.2.21.2.8
changed lines
	Added in v.1.143.2.21.2.19