parser3/src/main/pa_common.C - diff

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Diff for /parser3/src/main/pa_common.C between versions 1.143 and 1.143.2.3

version 1.143, 2003/01/21 15:51:13	version 1.143.2.3, 2003/01/24 14:36:10
Line 12 static const char* IDENT_COMMON_C="$Date	Line 12 static const char* IDENT_COMMON_C="$Date
#include "pa_globals.h"	#include "pa_globals.h"
#include "pa_hash.h"	#include "pa_hash.h"
#include "pa_vstring.h"	#include "pa_vstring.h"
#include "pa_vdate.h"

#ifdef WIN32	#ifdef WIN32
# include <windows.h>	# include <windows.h>
Line 115 void fix_line_breaks(char* buf, size_t&	Line 114 void fix_line_breaks(char* buf, size_t&
memcpy(dest, bol, eob-bol);	memcpy(dest, bol, eob-bol);
}	}

char* file_read_text(Pool& pool, const String& file_spec,	char* file_read_text(Pool& pool, Charset& charset,
	ConstStringPtr file_spec,
bool fail_on_read_problem,	bool fail_on_read_problem,
Hash params, Hash* out_fields) {	HashStringValue params, HashStringValue* out_fields) {
void *result; size_t size;	void *result; size_t size;
return file_read(pool, file_spec, result, size, true, params, out_fields, fail_on_read_problem)?(char *)result:0;	return file_read(pool, charset, file_spec, result, size, true, params, out_fields, fail_on_read_problem)?
	(char *)result:0;
}	}

//http request stuff	//http request stuff
Line 139 static bool set_addr(struct sockaddr_in	Line 140 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(Pool& pool, String& response, int sock, bool fail_on_status_ne_200){
const String* status_code=0;	int result=0;
ssize_t EOLat=0;	ssize_t EOLat=0;
while(true) {	while(true) {
char buf=(char )response.pool().malloc(MAX_STRING);	char buf=(char )pool.malloc(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_TAINTED(buf, size, "remote HTTP server response", 0);
if(!status_code && (EOLat=response.pos("\r\n", 2))>=0) { // checking status in first response	if(!result && (EOLat=response.pos("\r\n", 2))>=0) { // checking status in first response
const String& status_line=response.mid(0, (size_t)EOLat);	ConstStringPtr status_line=response.mid(0, (size_t)EOLat);
Array astatus(response.pool());	Array<ConstStringPtr> astatus;
size_t pos_after_ref=0; status_line.split(astatus, &pos_after_ref, " ", 1);	status_line->split(astatus, 0, " ", 1);
status_code=astatus.get_string(1);	ConstStringPtr status_code=astatus.get(1);
	result=status_code->as_int();

if(fail_on_status_ne_200 && *status_code!="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");
}	}
}	}
if(status_code)	if(result)
return status_code->as_int();	return result;
else	else
throw Exception("http.response",	throw Exception("http.response",
0,	Exception::undefined_source,
"bad response from host - no status found (size=%lu)", response.size());	"bad response from host - no status found (size=%lu)", response.size());
}	}

Line 181 static void timeout_handler(int sig){	Line 183 static void timeout_handler(int sig){
}	}
#endif	#endif

static int http_request(String& response,	static int http_request(Pool& pool,
const String *origin_string,	String& response,
const char* host, int port,	ConstStringPtr origin_string,
const char* request,	const char* host, int port,
int timeout,	const char* request,
bool fail_on_status_ne_200){	int timeout,
	bool fail_on_status_ne_200) {
if(!host)	if(!host)
throw Exception("http.host",	throw Exception("http.host",
origin_string,	origin_string,
Line 227 static int http_request(String& response	Line 230 static int http_request(String& response
origin_string,	origin_string,
"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(pool, response, sock, fail_on_status_ne_200);
closesocket(sock);	closesocket(sock);
#ifdef WE_CAN_USE_ALARM	#ifdef WE_CAN_USE_ALARM
alarm(0);	alarm(0);
Line 246 static int http_request(String& response	Line 249 static int http_request(String& response

#ifndef DOXYGEN	#ifndef DOXYGEN
struct Http_pass_header_info {	struct Http_pass_header_info {
	Pool* pool;
	Charset* charset;
String* request;	String* request;
bool user_agent_specified;	bool user_agent_specified;
};	};
#endif	#endif
static void http_pass_header(const Hash::Key& key, Hash::Val value, void info)	static void http_pass_header(HashStringValue::key_type key, HashStringValue::value_type value,
{	Http_pass_header_info *info) {
Http_pass_header_info& i=static_cast<Http_pass_header_info >(info);	(info->request)<<key<<": "
Pool& pool=i.request->pool();	<< *attributed_meaning_to_string(value, String::UL_HTTP_HEADER, false)

*(i.request)<<key<<": "
<< attributed_meaning_to_string(static_cast<Value >(value), String::UL_HTTP_HEADER, false)
<<"\n";	<<"\n";

if(key.change_case(pool, String::CC_UPPER)=="USER-AGENT")	if(key->change_case(info->pool, *info->charset, String::CC_UPPER)=="USER-AGENT")
i.user_agent_specified=true;	info->user_agent_specified=true;
}	}
static void file_read_http(Pool& pool, const String& file_spec,	static HashStringValuePtr file_read_http(Pool& pool, Charset& charset, const String& file_spec,
void*& data, size_t& data_size,	char*& data, size_t& data_size,
Hash options=0, Hash* out_fields=0) {	HashStringValue *options=0, bool return_outfields=false) {
	HashStringValuePtr result(0);
char host[MAX_STRING];	char host[MAX_STRING];
const char* uri;	const char* uri;
int port;	int port;
const char* method="GET";	ConstCharPtr 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;	ValuePtr vheaders(0);

String connect_string(pool);	StringPtr connect_string(new String());
// not in ^sql{... UL_SQL ...} spirit, but closer to ^file::load one	// not in ^sql{... UL_SQL ...} spirit, but closer to ^file::load one
connect_string.append(file_spec, String::UL_URI); // tainted pieces -> URI pieces	connect_string->append(file_spec, String::UL_URI); // tainted pieces -> URI pieces

char* connect_string_cstr=connect_string.cstr(String::UL_UNSPECIFIED);	CharPtr connect_string_cstr=connect_string->cstr(String::UL_UNSPECIFIED);
if(strncmp(connect_string_cstr, "http://", 7)!=0)	const char *current=connect_string_cstr.get();
	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
connect_string_cstr+=7;	current+=7;

strncpy(host, connect_string_cstr, sizeof(host)-1); host[sizeof(host)-1]=0;	strncpy(host, current, sizeof(host)-1); host[sizeof(host)-1]=0;
char* host_uri=lsplit(host, '/');	char* host_uri=lsplit(host, '/');
uri=host_uri?connect_string_cstr+(host_uri-1-host):"/";	uri=host_uri?current+(host_uri-1-host):"/";
char* port_cstr=lsplit(host, ':');	char* port_cstr=lsplit(host, ':');
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;

if(options) {	if(options) {
int valid_options=0;	int valid_options=0;
if(Value vmethod=static_cast<Value >(options->get(*http_method_name))) {	if(ValuePtr vmethod=options->get(http_method_name)) {
valid_options++;	valid_options++;
method=vmethod->as_string().cstr();	method=vmethod->as_string(pool)->cstr();
}	}
if(Value vtimeout=static_cast<Value >(options->get(*http_timeout_name))) {	if(ValuePtr vtimeout=options->get(http_timeout_name)) {
valid_options++;	valid_options++;
timeout=vtimeout->as_int();	timeout=vtimeout->as_int();
}	}
if(vheaders=static_cast<Value >(options->get(http_headers_name))) {	if(vheaders=options->get(http_headers_name)) {
valid_options++;	valid_options++;
}	}
if(Value vany_status=static_cast<Value >(options->get(*http_any_status_name))) {	if(ValuePtr 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(valid_options!=options->size())	if(valid_options!=options->count())
throw Exception("parser.runtime",	throw Exception("parser.runtime",
0,	Exception::undefined_source,
"invalid option passed");	"invalid option passed");
}	}

//making request	//making request
String request(pool);	String request;
request<< method <<" "<< uri <<" HTTP/1.0\nHost: "<< host<<"\n";	if(method)
	request<<method.get();
	else
	request<<"GET";
	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(Hash *headers=vheaders->get_hash(&connect_string)) {	if(HashStringValuePtr headers=vheaders->get_hash(connect_string)) {
Http_pass_header_info info={&request};	Http_pass_header_info info={&pool, &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 334 static void file_read_http(Pool& pool, c	Line 342 static void file_read_http(Pool& pool, c
request<<"\n";	request<<"\n";

//sending request	//sending request
String response(pool);	String response;
int status_code=http_request(response,	ConstCharPtr request_cstr=request.cstr(String::UL_UNSPECIFIED);
&connect_string, host, port, request.cstr(String::UL_UNSPECIFIED),	int status_code=http_request(pool, response,
	connect_string, host, port, request_cstr.get(),
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);	int pos=response.pos("\r\n\r\n", 4);
if(pos<1){	if(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");
}	}
String header_block=response.mid(0, pos);	StringPtr header_block=response.mid(0, pos);
String body=response.mid(pos+4, response.size());	StringPtr body=response.mid(pos+4, response.size());

Array aheaders(pool);	Array<ConstStringPtr> aheaders;
Hash& headers=*new(pool) Hash(pool);	HashStringValuePtr headers(new HashStringValue);
size_t pos_after_ref=0;	header_block->split(aheaders, 0, "\r\n", 2);
header_block.split(aheaders, &pos_after_ref, "\r\n", 2);

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

headers.put(
line->mid(0, pos).change_case(pool, String::CC_UPPER),
new(pool) VString(line->mid(pos+2, line->size())));
} else
throw Exception("http.response",	throw Exception("http.response",
&connect_string,	connect_string,
"bad response from host - bad headers \"%s\"", header_block.cstr());	"bad response from host - bad header \"%s\"", line->cstr());

	headers->put(
	line->mid(0, pos)->change_case(pool, charset, String::CC_UPPER),
	ValuePtr(new VString(line->mid(pos+2, line->size()))));
}	}

// output response	// output response
data=body.cstr(); data_size=body.size();	data=new(pool) char[data_size=body->size()];
if(out_fields) {	body->store_to(data, String::UL_AS_IS);
headers.put(*file_status_name, new(pool) VInt(pool, status_code));	if(return_outfields) {
	headers.put(file_status_name, VIntPtr<new VInt(pool, status_code)>);
*out_fields=&headers;	*out_fields=&headers;
}	}

	return result;
}	}

#ifndef DOXYGEN	#ifndef DOXYGEN
Line 385 struct File_read_action_info {	Line 392 struct File_read_action_info {
void *data; size_t data_size;	void *data; size_t data_size;
};	};
#endif	#endif
static void file_read_action(Pool& pool,	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,
Line 410 static void file_read_action(Pool& pool,	Line 417 static void file_read_action(Pool& pool,
return;	return;
}	}
}	}
bool file_read(Pool& pool, const String& file_spec,	bool file_read(ConstStringPtr file_spec,
void*& data, size_t& data_size,	void*& data, size_t& data_size,
bool as_text, Hash params, Hash* out_fields,	bool as_text, HashStringValue params, HashStringValue* out_fields,
bool fail_on_read_problem) {	bool fail_on_read_problem) {
bool result;	bool result;
if(file_spec.starts_with("http://", 7)) {	if(file_spec.starts_with("http://", 7)) {
Line 444 bool file_read(Pool& pool, const String&	Line 451 bool file_read(Pool& pool, const String&
return result;	return result;
}	}

bool file_read_action_under_lock(Pool& pool, const String& file_spec,	bool file_read_action_under_lock(const String& file_spec,
const char* action_name, File_read_action action, void *context,	const char* action_name, File_read_action action, void *context,
bool as_text,	bool as_text,
bool fail_on_read_problem) {	bool fail_on_read_problem) {
Line 745 char* rsplit(char* string, char delim) {	Line 752 char* rsplit(char* string, char delim) {
}	}

/// @todo less stupid type detection	/// @todo less stupid type detection
char* format(Pool& pool, double value, char* fmt) {	char* format(double value, char* fmt) {
char local_buf[MAX_NUMBER];	char local_buf[MAX_NUMBER];
size_t size;	size_t size;

Line 781 size_t stdout_write(const void *buf, siz	Line 788 size_t stdout_write(const void *buf, siz
#endif	#endif
}	}

char* unescape_chars(Pool& pool, const char* cp, int len) {	char* unescape_chars(const char* cp, int len) {
char* s=(char *)pool.malloc(len + 1, 5);	char* s=(char *)pool.malloc(len + 1, 5);
enum EscapeState {	enum EscapeState {
EscapeRest,	EscapeRest,
Line 953 int pa_sleep(unsigned long secs, unsigne	Line 960 int pa_sleep(unsigned long secs, unsigne
}	}


// attributed meaning

static size_t date_attribute(const VDate& vdate, char *buf, size_t buf_size) {
const char month_names[12][4]={
"Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"};
const char days[7][4]={
"Sun","Mon","Tue","Wed","Thu","Fri","Sat"};

time_t when=vdate.get_time();
struct tm *tms=gmtime(&when);
if(!tms)
throw Exception(0,
0,
"bad time in attribute value (seconds from epoch=%ld)", when);
return snprintf(buf, MAX_STRING, "%s, %.2d-%s-%.4d %.2d:%.2d:%.2d GMT",
days[tms->tm_wday],
tms->tm_mday,month_names[tms->tm_mon],tms->tm_year+1900,
tms->tm_hour,tms->tm_min,tms->tm_sec);
}
static void append_attribute_meaning(String& result,
Value& value, String::Untaint_lang lang, bool forced) {
if(const String *string=value.get_string())
result.append(string->join_chains(result.pool(), 0), lang, forced);
else
if(Value *vdate=value.as(VDATE_TYPE, false)) {
char buf=(char )result.malloc(MAX_STRING);
size_t size=date_attribute(static_cast<VDate >(vdate),
buf, MAX_STRING);

result.APPEND_CLEAN(buf, size, "converted from date", 0);
} else
throw Exception("parser.runtime",
&result,
"trying to append here neither string nor date (%s)",
value.type());
}
#ifndef DOXYGEN
struct Attributed_meaning_info {
String *header; // header line being constructed
String::Untaint_lang lang; // language in which to append to that line
bool forced; // do they force that lang?
};
#endif
static void append_attribute_subattribute(const Hash::Key& akey, Hash::Val *avalue,
void *info) {
if(akey==VALUE_NAME)
return;

Attributed_meaning_info& ami=static_cast<Attributed_meaning_info >(info);

// ...; charset=windows1251
*ami.header << "; ";
ami.header->append(akey, ami.lang, ami.forced);
*ami.header << "=";
append_attribute_meaning(ami.header, static_cast<Value *>(avalue), ami.lang, ami.forced);
}
const String& attributed_meaning_to_string(Value& meaning,
String::Untaint_lang lang, bool forced) {
String &result=*new(meaning.pool()) String(meaning.pool());
if(Hash *hash=meaning.get_hash(0)) {
// $value(value) $subattribute(subattribute value)
if(Value value=static_cast<Value >(hash->get(*value_name)))
append_attribute_meaning(result, *value, lang, forced);

Attributed_meaning_info attributed_meaning_info={&result, lang};
hash->for_each(append_attribute_subattribute, &attributed_meaning_info);
} else // result value
append_attribute_meaning(result, meaning, lang, forced);

return result;
}

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Removed from v.1.143
changed lines
	Added in v.1.143.2.3