Annotation of parser3/src/main/pa_http.C, revision 1.136
1.1 paf 1: /** @file
2: Parser: http support functions.
3:
1.135 moko 4: Copyright (c) 2001-2026 Art. Lebedev Studio (https://www.artlebedev.com)
1.121 moko 5: Authors: Konstantin Morshnev <moko@design.ru>, Alexandr Petrosian <paf@design.ru>
1.1 paf 6: */
7:
8: #include "pa_http.h"
9: #include "pa_common.h"
1.81 moko 10: #include "pa_base64.h"
1.1 paf 11: #include "pa_charsets.h"
12: #include "pa_request_charsets.h"
1.22 misha 13: #include "pa_request.h"
14: #include "pa_vfile.h"
15: #include "pa_random.h"
1.1 paf 16:
1.136 ! moko 17: volatile const char * IDENT_PA_HTTP_C="$Id: pa_http.C,v 1.135 2026/04/25 13:38:46 moko Exp $" IDENT_PA_HTTP_H;
1.53 moko 18:
1.1 paf 19: // defines
20:
1.19 misha 21: #define HTTP_METHOD_NAME "method"
22: #define HTTP_FORM_NAME "form"
23: #define HTTP_BODY_NAME "body"
24: #define HTTP_TIMEOUT_NAME "timeout"
25: #define HTTP_HEADERS_NAME "headers"
1.22 misha 26: #define HTTP_FORM_ENCTYPE_NAME "enctype"
1.19 misha 27: #define HTTP_ANY_STATUS_NAME "any-status"
1.59 moko 28: #define HTTP_OMIT_POST_CHARSET_NAME "omit-post-charset" // ^file::load[...;http://...;$.method[post]] by default adds charset to content-type
1.12 misha 29:
1.1 paf 30: #define HTTP_USER "user"
31: #define HTTP_PASSWORD "password"
32:
1.70 moko 33: #define HTTP_USER_AGENT "user-agent"
1.1 paf 34: #define DEFAULT_USER_AGENT "parser3"
35:
1.59 moko 36: #ifndef INADDR_NONE
37: #define INADDR_NONE ((ulong) -1)
38: #endif
1.1 paf 39:
40: #undef CRLF
41: #define CRLF "\r\n"
42:
1.54 misha 43: // helpers
1.56 misha 44:
1.130 moko 45: #ifdef HTTPD_DEBUG
46: void pa_log(const char* fmt, ...);
47: #define LOG(action) action
48: #else
49: #define LOG(action)
50: #endif
51:
52: ssize_t pa_send(int sock, const char *buffer, size_t len){
53: size_t total_sent = 0;
54: while (total_sent < len) {
55: ssize_t bytes_sent=send(sock, buffer + total_sent, len - total_sent, 0);
56: if (bytes_sent < 0) {
57: return bytes_sent;
58: } else if (bytes_sent == 0) {
59: // Connection closed by the remote peer?
60: break;
61: }
62: LOG(
63: if(bytes_sent != len - total_sent)
64: pa_log("httpd [%d] partial send %d of (%d)", sock, bytes_sent, len - total_sent)
65: );
66: total_sent += bytes_sent;
67: }
68: return total_sent;
69: }
70:
1.85 moko 71: bool HTTP_Headers::add_header(const char *line){
1.78 moko 72: const char *value=strchr(line, ':');
73:
74: if(value && value != line){ // we need only headers, not the response code
1.134 moko 75: Header header = Header(String::Body(str_upper(line, value-line)), String::Body(value+1).trim(String::TRIM_BOTH, " \t\n\r"));
1.78 moko 76:
77: if(header.name == String::Body(HTTP_CONTENT_TYPE_UPPER) && content_type.is_empty())
78: content_type=header.value;
79:
80: if(header.name == String::Body("CONTENT-LENGTH") && content_length==0)
1.95 moko 81: ALTER_EXCEPTION_COMMENT(content_length=pa_atoul(header.value.cstr()), " for content-length");
1.78 moko 82:
83: headers+=header;
84:
85: return true;
86: }
87: return false;
88: }
89:
1.54 misha 90: class Cookies_table_template_columns: public ArrayString {
91: public:
92: Cookies_table_template_columns() {
93: *this+=new String("name");
94: *this+=new String("value");
95: *this+=new String("expires");
96: *this+=new String("max-age");
97: *this+=new String("domain");
98: *this+=new String("path");
99: *this+=new String("httponly");
100: *this+=new String("secure");
101: }
102: };
103:
104:
1.1 paf 105: static bool set_addr(struct sockaddr_in *addr, const char* host, const short port){
1.22 misha 106: memset(addr, 0, sizeof(*addr));
107: addr->sin_family=AF_INET;
108: addr->sin_port=htons(port);
109: if(host) {
1.65 moko 110: struct hostent *hostIP=gethostbyname(host);
111: if(hostIP && hostIP->h_addrtype == AF_INET){
112: memcpy(&addr->sin_addr, hostIP->h_addr, hostIP->h_length);
113: return true;
114: }
115: }
116: return false;
1.1 paf 117: }
118:
1.84 moko 119: class HTTP_response : public PA_Allocated {
1.78 moko 120: public:
121: char *buf;
122: size_t length;
123: size_t buf_size;
124: size_t body_offset;
125:
1.85 moko 126: HTTP_Headers headers;
1.78 moko 127:
1.97 moko 128: HTTP_response() : buf(NULL), length(0), buf_size(0), body_offset(0){}
1.78 moko 129:
130: void resize(size_t size){
131: buf_size=size;
132: buf=(char *)pa_realloc(buf, size + 1);
133: }
134:
1.120 moko 135: bool read(SOCKET sock, size_t size){
1.103 moko 136: if(length + size > buf_size)
137: resize(buf_size * 2 + size);
1.78 moko 138: ssize_t received_size=recv(sock, buf + length, size, 0);
1.103 moko 139: if(received_size == 0)
1.78 moko 140: return false;
1.103 moko 141: if(received_size < 0) {
142: if(int no = pa_socks_errno())
1.102 moko 143: throw Exception("http.timeout", 0, "error receiving response: %s (%d)", pa_socks_strerr(no), no);
1.78 moko 144: return false;
145: }
146: length+=received_size;
147: buf[length]='\0';
148: return true;
149: }
150:
1.83 moko 151: size_t first_line(){
1.89 moko 152: char *header=strchr(buf, '\n');
153: if(!header)
1.78 moko 154: return false;
155:
1.89 moko 156: return header-buf;
1.78 moko 157: }
158:
159: const char *status_code(char *status_line, int &result){
160: char* status_start = strchr(status_line, ' ');
161:
162: if(!(status_start++))
163: return status_line;
164:
165: char* status_end=strchr(status_start, ' ');
166:
167: if(!status_end)
168: return status_line;
169:
170: if(status_end==status_start)
171: return status_line;
1.1 paf 172:
1.78 moko 173: const char *result_str=pa_strdup(status_start, status_end-status_start);
1.95 moko 174: ALTER_EXCEPTION_COMMENT(result=pa_atoui(result_str), " for HTTP status");
1.78 moko 175: return result_str;
176: }
1.2 paf 177:
1.78 moko 178: bool body_start(){
179: char *p=buf;
180: while((p=strchr(p, '\n'))) {
181: if(p[1]=='\r' && p[2]=='\n'){ // \r\n\r\n
182: *p='\0';
183: body_offset=p-buf+3;
184: return true;
185: }
186: if(p[1]=='\n') { // \n\n
187: *p='\0';
188: body_offset=p-buf+2;
189: return true;
190: }
191: p++;
192: }
193: return false;
1.2 paf 194: }
1.78 moko 195:
196: void parse_headers(){
197: const String header_block(buf, String::L_TAINTED);
198:
199: ArrayString aheaders;
200: header_block.split(aheaders, 0, "\n");
201:
1.124 moko 202: ArrayString::Iterator i(aheaders);
1.78 moko 203: i.next(); // skipping status
1.125 moko 204: for(;i;){
1.78 moko 205: const char *line=i.next()->cstr();
206: if(!headers.add_header(line))
1.97 moko 207: throw Exception("http.response", 0, "bad response from host - bad header \"%s\"", line);
1.78 moko 208: }
1.1 paf 209: }
210:
1.120 moko 211: int read_response(SOCKET sock, bool fail_on_status_ne_200);
1.78 moko 212: };
213:
214: enum HTTP_response_state {
215: HTTP_STATUS_CODE,
216: HTTP_HEADERS,
217: HTTP_BODY
218: };
219:
1.120 moko 220: int HTTP_response::read_response(SOCKET sock, bool fail_on_status_ne_200) {
1.78 moko 221: HTTP_response_state state=HTTP_STATUS_CODE;
222: int result=0;
223:
224: size_t chunk_size=0x400*16;
1.88 moko 225: resize(2*chunk_size);
1.78 moko 226:
1.88 moko 227: while(read(sock, chunk_size)){
1.78 moko 228: switch(state){
229: case HTTP_STATUS_CODE: {
1.88 moko 230: size_t status_size=first_line();
1.78 moko 231: if(!status_size)
232: break;
233:
1.88 moko 234: const char *status=status_code(pa_strdup(buf, status_size), result);
1.78 moko 235:
236: if(!result || fail_on_status_ne_200 && result!=200)
237: throw Exception("http.status", status ? new String(status) : &String::Empty, "invalid HTTP response status");
238:
239: state=HTTP_HEADERS;
240: }
241:
242: case HTTP_HEADERS: {
1.88 moko 243: if(!body_start())
1.78 moko 244: break;
245:
1.88 moko 246: parse_headers();
1.78 moko 247:
1.97 moko 248: size_t content_length=check_file_size(headers.content_length, 0);
1.88 moko 249: if(content_length>0 && (content_length + body_offset) > length){
250: resize(content_length + body_offset + 0x400*64);
1.78 moko 251: }
252:
253: state=HTTP_BODY;
1.1 paf 254: break;
255: }
1.78 moko 256:
257: case HTTP_BODY: {
258: chunk_size=0x400*64;
1.1 paf 259: break;
260: }
261: }
262: }
1.78 moko 263:
264: if(state==HTTP_STATUS_CODE)
1.97 moko 265: throw Exception("http.response", 0, "bad response from host - no status found (size=%u)", length);
1.78 moko 266:
267: if(state==HTTP_HEADERS){
1.88 moko 268: parse_headers();
269: body_offset=length;
1.1 paf 270: }
1.78 moko 271:
272: return result;
1.1 paf 273: }
274:
275: /* ********************** request *************************** */
276:
277: #if defined(SIGALRM) && defined(HAVE_SIGSETJMP) && defined(HAVE_SIGLONGJMP)
278: # define PA_USE_ALARM
279: #endif
280:
281: #ifdef PA_USE_ALARM
282: static sigjmp_buf timeout_env;
283: static void timeout_handler(int /*sig*/){
1.101 moko 284: siglongjmp(timeout_env, 1);
1.1 paf 285: }
1.118 moko 286:
287: #define PA_NO_THREADS (HTTPD_Server::mode != HTTPD_Server::MULTITHREADED)
288:
289: #define ALARM(value) if(PA_NO_THREADS) alarm(value)
1.101 moko 290: #else
291: #define ALARM(value)
1.1 paf 292: #endif
293:
1.78 moko 294: static int http_request(HTTP_response& response, const char* host, short port, const char* request, size_t request_size, int timeout_secs, bool fail_on_status_ne_200) {
1.1 paf 295: if(!host)
1.73 moko 296: throw Exception("http.host", 0, "zero hostname"); //never
1.1 paf 297:
1.120 moko 298: volatile SOCKET sock=INVALID_SOCKET; // to prevent makeing it register variable, because it will be clobbered by longjmp [thanks gcc warning]
1.101 moko 299:
1.1 paf 300: #ifdef PA_USE_ALARM
1.118 moko 301: if(PA_NO_THREADS) signal(SIGALRM, timeout_handler);
302: if(PA_NO_THREADS && sigsetjmp(timeout_env, 1)) {
1.101 moko 303: // duplicating closesocket to make code more simple for old compilers
1.120 moko 304: if(sock != INVALID_SOCKET)
1.101 moko 305: closesocket(sock);
306: throw Exception("http.timeout", 0, "timeout occurred while retrieving document");
1.1 paf 307: return 0; // never
1.101 moko 308: } else
1.1 paf 309: #endif
1.101 moko 310: {
311: ALARM(timeout_secs);
1.1 paf 312: try {
313: int result;
314: struct sockaddr_in dest;
315:
316: if(!set_addr(&dest, host, port))
1.127 moko 317: throw Exception("http.host", 0, "cannot resolve hostname \"%s\"", host);
1.1 paf 318:
1.120 moko 319: if((sock=socket(AF_INET, SOCK_STREAM, IPPROTO_TCP/*0*/)) == INVALID_SOCKET) {
1.1 paf 320: int no=pa_socks_errno();
1.127 moko 321: throw Exception("http.connect", 0, "cannot make socket: %s (%d)", pa_socks_strerr(no), no);
1.1 paf 322: }
323:
324: // To enable SO_DONTLINGER (that is, disable SO_LINGER)
325: // l_onoff should be set to zero and setsockopt should be called
326: linger dont_linger={0,0};
327: setsockopt(sock, SOL_SOCKET, SO_LINGER, (const char *)&dont_linger, sizeof(dont_linger));
328:
329: #ifdef WIN32
330: // SO_*TIMEO can be defined in .h but not implemlemented in protocol,
331: // failing subsequently with Option not supported by protocol (99) message
332: // could not suppress that, so leaving this only for win32
333: int timeout_ms=timeout_secs*1000;
334: setsockopt(sock, SOL_SOCKET, SO_SNDTIMEO, (const char*)&timeout_ms, sizeof(timeout_ms));
335: setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, (const char*)&timeout_ms, sizeof(timeout_ms));
336: #endif
337:
338: if(connect(sock, (struct sockaddr *)&dest, sizeof(dest))) {
339: int no=pa_socks_errno();
1.127 moko 340: throw Exception("http.connect", 0, "cannot connect to host \"%s\": %s (%d)", host, pa_socks_strerr(no), no);
1.1 paf 341: }
1.22 misha 342:
1.130 moko 343: if(pa_send(sock, request, request_size) < 0) {
1.1 paf 344: int no=pa_socks_errno();
1.78 moko 345: throw Exception("http.timeout", 0, "error sending request: %s (%d)", pa_socks_strerr(no), no);
1.1 paf 346: }
347:
1.88 moko 348: result=response.read_response(sock, fail_on_status_ne_200);
1.78 moko 349: closesocket(sock);
1.101 moko 350: ALARM(0);
1.1 paf 351: return result;
352: } catch(...) {
1.101 moko 353: ALARM(0);
1.120 moko 354: if(sock != INVALID_SOCKET)
1.78 moko 355: closesocket(sock);
1.1 paf 356: rethrow;
357: }
358: }
359: }
360:
361: #ifndef DOXYGEN
362: struct Http_pass_header_info {
363: Request_charsets* charsets;
364: String* request;
1.35 misha 365: bool* user_agent_specified;
366: bool* content_type_specified;
367: bool* content_type_url_encoded;
1.1 paf 368: };
369: #endif
1.50 moko 370:
371: char *pa_http_safe_header_name(const char *name) {
372: char *result=pa_strdup(name);
373: char *n=result;
1.52 misha 374: if(!pa_isalpha((unsigned char)*n))
1.50 moko 375: *n++ = '_';
376: for(; *n; ++n) {
1.52 misha 377: if (!pa_isalnum((unsigned char)*n) && *n != '-' && *n != '_')
1.50 moko 378: *n = '_';
379: }
380: return result;
381: }
382:
1.101 moko 383: static void http_pass_header(HashStringValue::key_type aname, HashStringValue::value_type avalue, Http_pass_header_info *info) {
1.9 misha 384:
1.41 misha 385: const char* name_cstr=aname.cstr();
386:
1.38 misha 387: if(strcasecmp(name_cstr, HTTP_CONTENT_LENGTH)==0)
388: return;
389:
1.50 moko 390: String name=String(pa_http_safe_header_name(capitalize(name_cstr)), String::L_AS_IS);
391: String value=attributed_meaning_to_string(*avalue, String::L_HTTP_HEADER, true);
1.9 misha 392:
1.35 misha 393: *info->request << name << ": " << value << CRLF;
1.1 paf 394:
1.38 misha 395: if(strcasecmp(name_cstr, HTTP_USER_AGENT)==0)
1.35 misha 396: *info->user_agent_specified=true;
1.38 misha 397: if(strcasecmp(name_cstr, HTTP_CONTENT_TYPE)==0){
1.35 misha 398: *info->content_type_specified=true;
1.62 moko 399: *info->content_type_url_encoded=pa_strncasecmp(value.cstr(), HTTP_CONTENT_TYPE_FORM_URLENCODED)==0;
1.35 misha 400: }
1.1 paf 401: }
402:
1.10 misha 403: static void http_pass_cookie(HashStringValue::key_type name,
1.20 misha 404: HashStringValue::value_type value,
405: Http_pass_header_info *info) {
1.10 misha 406:
1.17 misha 407: *info->request << String(name, String::L_HTTP_COOKIE) << "="
1.31 misha 408: << attributed_meaning_to_string(*value, String::L_HTTP_COOKIE, true)
1.10 misha 409: << "; ";
410:
411: }
1.1 paf 412:
413: static const String* basic_authorization_field(const char* user, const char* pass) {
414: if(!user&& !pass)
415: return 0;
416:
417: String combined;
418: if(user)
419: combined<<user;
420: combined<<":";
421: if(pass)
422: combined<<pass;
423:
1.20 misha 424: String* result=new String("Basic ");
1.82 moko 425: *result<<pa_base64_encode(combined.cstr(), combined.length(), Base64Options(false /*no wrap*/));
1.1 paf 426: return result;
427: }
428:
1.73 moko 429: static void form_string_value2string(HashStringValue::key_type key, const String& value, String& result) {
1.30 misha 430: result << String(key, String::L_URI) << "=" << String(value, String::L_URI) << "&";
1.1 paf 431: }
1.20 misha 432:
1.1 paf 433: #ifndef DOXYGEN
434: struct Form_table_value2string_info {
435: HashStringValue::key_type key;
436: String& result;
437:
438: Form_table_value2string_info(HashStringValue::key_type akey, String& aresult):
439: key(akey), result(aresult) {}
440: };
441: #endif
442: static void form_table_value2string(Table::element_type row, Form_table_value2string_info* info) {
443: form_string_value2string(info->key, *row->get(0), info->result);
444: }
1.73 moko 445:
446: static void form_value2string(HashStringValue::key_type key, HashStringValue::value_type value, String* result) {
1.1 paf 447: if(const String* svalue=value->get_string())
448: form_string_value2string(key, *svalue, *result);
449: else if(Table* tvalue=value->get_table()) {
450: Form_table_value2string_info info(key, *result);
451: tvalue->for_each(form_table_value2string, &info);
452: } else
1.73 moko 453: throw Exception(PARSER_RUNTIME, new String(key, String::L_TAINTED),
1.63 moko 454: "is %s, " HTTP_FORM_NAME " option value can be string or table only (file is allowed for $." HTTP_METHOD_NAME "[POST] + $." HTTP_FORM_ENCTYPE_NAME "[" HTTP_CONTENT_TYPE_MULTIPART_FORMDATA "])", value->type());
1.1 paf 455: }
1.20 misha 456:
1.5 misha 457: const char* pa_form2string(HashStringValue& form, Request_charsets& charsets) {
1.1 paf 458: String string;
1.3 paf 459: form.for_each<String*>(form_value2string, &string);
1.44 misha 460: return string.untaint_and_transcode_cstr(String::L_URI, &charsets);
1.1 paf 461: }
1.22 misha 462:
463: struct FormPart {
464: Request* r;
465: const char* boundary;
1.48 moko 466: String* string;
1.22 misha 467: Form_table_value2string_info* info;
1.48 moko 468:
469: struct BinaryBlock{
470: const char* ptr;
471: size_t length;
472:
473: BinaryBlock(String* astring, Request* r): ptr(astring->untaint_and_transcode_cstr(String::L_AS_IS, &r->charsets)), length(strlen(ptr)){}
474: BinaryBlock(const char* aptr, size_t alength): ptr(aptr), length(alength){}
475: };
476:
477: Array<BinaryBlock> blocks;
478:
479: FormPart(Request* ar, const char* aboundary): r(ar), boundary(aboundary), string(new String()){}
480:
481: const char *post(size_t &length){
482: if(blocks.count()){
483: blocks+=BinaryBlock(string, r);
484:
485: length=0;
486: for(size_t i=0; i<blocks.count(); i++)
487: length+=blocks[i].length;
488:
489: char *result=(char *)pa_malloc_atomic(length);
490: char *ptr=result;
491:
492: for(size_t i=0; i<blocks.count(); i++){
493: memcpy(ptr, blocks[i].ptr, blocks[i].length);
494: ptr+=blocks[i].length;
495: }
496:
497: return result;
498: } else {
499: BinaryBlock result(string, r);
500: length=result.length;
501: return result.ptr;
502: }
503: }
1.22 misha 504: };
505:
1.73 moko 506: static void form_part_boundary_header(FormPart& part, String::Body name, const char* file_name=0) {
507: *part.string << "--" << part.boundary << CRLF CONTENT_DISPOSITION_CAPITALIZED ": form-data; name=\"" << name << "\"";
1.22 misha 508: if(file_name){
509: if(strcmp(file_name, NONAME_DAT)!=0)
1.48 moko 510: *part.string << "; filename=\"" << file_name << "\"";
511: *part.string << CRLF HTTP_CONTENT_TYPE_CAPITALIZED ": " << part.r->mime_type_of(file_name);
1.22 misha 512: }
1.48 moko 513: *part.string << CRLF CRLF;
1.22 misha 514: }
515:
1.73 moko 516: static void form_string_value2part(HashStringValue::key_type key, const String& value, FormPart& part) {
1.28 misha 517: form_part_boundary_header(part, key);
1.48 moko 518: *part.string << value << CRLF;
1.22 misha 519: }
520:
1.73 moko 521: static void form_file_value2part(HashStringValue::key_type key, VFile& vfile, FormPart& part) {
1.28 misha 522: form_part_boundary_header(part, key, vfile.fields().get(name_name)->as_string().cstr());
1.48 moko 523: part.blocks+=FormPart::BinaryBlock(part.string, part.r);
524: part.blocks+=FormPart::BinaryBlock(vfile.value_ptr(), vfile.value_size());
525: part.string=new String();
526: *part.string << CRLF;
1.22 misha 527: }
528:
529: static void form_table_value2part(Table::element_type row, FormPart* part) {
530: form_string_value2part(part->info->key, *row->get(0), *part);
531: }
532:
1.136 ! moko 533: static bool form_element_value2part(HashStringValue::key_type key, HashStringValue::value_type value, FormPart& part) {
! 534: if(const String* svalue=value->get_string()){
! 535: form_string_value2part(key, *svalue, part);
! 536: } else if(VFile* vfile=dynamic_cast<VFile *>(value)){
! 537: form_file_value2part(key, *vfile, part);
! 538: } else {
! 539: return false;
! 540: }
! 541: return true;
! 542: }
! 543:
1.73 moko 544: static void form_value2part(HashStringValue::key_type key, HashStringValue::value_type value, FormPart& part) {
1.136 ! moko 545: if(form_element_value2part(key, value, part)) {
! 546: // string or file
! 547: } else if(Table* tvalue=value->get_table()) {
1.48 moko 548: Form_table_value2string_info info(key, *part.string);
1.22 misha 549: part.info = &info;
550: tvalue->for_each(form_table_value2part, &part);
1.136 ! moko 551: } else if(HashStringValue* hvalue=value->get_hash()){
! 552: // hash or array: several strings/files under the same field name
! 553: for(HashStringValue::Iterator j(*hvalue); j; j.next())
! 554: if(!form_element_value2part(key, j.value(), part))
! 555: throw Exception(PARSER_RUNTIME, new String(j.key(), String::L_TAINTED), "is %s, multiple values of " HTTP_FORM_NAME " field '%s' must be strings or files", j.value()->type(), key.cstr());
1.22 misha 556: } else
1.136 ! moko 557: throw Exception(PARSER_RUNTIME, new String(key, String::L_TAINTED), "is %s, " HTTP_FORM_NAME " field value can be string, table, file, hash or array", value->type());
1.22 misha 558: }
559:
560: const char* pa_form2string_multipart(HashStringValue& form, Request& r, const char* boundary, size_t& post_size){
1.48 moko 561: FormPart formpart(&r, boundary);
1.22 misha 562: form.for_each<FormPart&>(form_value2part, formpart);
1.48 moko 563: *formpart.string << "--" << boundary << "--";
564: // @todo: return binary blocks here to save memory in pa_internal_file_read_http
565: return formpart.post(post_size);
1.22 misha 566: }
567:
1.54 misha 568: // Set-Cookie: name=value; Domain=docs.foo.com; Path=/accounts; Expires=Wed, 13-Jan-2021 22:23:01 GMT; Secure; HttpOnly
569: static ArrayString* parse_cookie(Request& r, const String& cookie) {
1.64 moko 570: char *current=pa_strdup(cookie.cstr());
1.54 misha 571:
572: const String* name=0;
1.55 moko 573: const String* value=&String::Empty;
574: const String* expires=&String::Empty;
575: const String* max_age=&String::Empty;
576: const String* path=&String::Empty;
577: const String* domain=&String::Empty;
578: const String* httponly=&String::Empty;
579: const String* secure=&String::Empty;
1.54 misha 580:
581: bool first_pair=true;
582:
583: do {
584: if(char *meaning=search_stop(current, ';'))
585: if(char *attribute=search_stop(meaning, '=')) {
586: const String* sname=new String(unescape_chars(attribute, strlen(attribute), &r.charsets.source(), true/*don't convert '"' to space*/), String::L_TAINTED);
587: const String* smeaning=0;
588: if(meaning)
589: smeaning=new String(unescape_chars(meaning, strlen(meaning), &r.charsets.source(), true/*don't convert '"' to space*/), String::L_TAINTED);
590:
591: if(first_pair) {
592: // name + value
593: name=sname;
1.122 moko 594: if(smeaning)
595: value=smeaning;
1.54 misha 596: first_pair=false;
597: } else {
598: const String& slower=sname->change_case(r.charsets.source(), String::CC_LOWER);
599:
600: if(slower == "expires")
601: expires=smeaning;
602: else if(slower == "max-age")
603: max_age=smeaning;
604: else if(slower == "domain")
605: domain=smeaning;
606: else if(slower == "path")
607: path=smeaning;
608: else if(slower == "httponly")
609: httponly=new String("1", String::L_CLEAN);
610: else if(slower == "secure")
611: secure=new String("1", String::L_CLEAN);
612: else {
613: // todo@ ?
614: }
615: }
616: }
617: } while(current);
618:
619: if(!name)
620: return 0;
621:
622: ArrayString* result=new ArrayString(8);
623: *result+=name;
624: *result+=value;
625: *result+=expires;
626: *result+=max_age;
627: *result+=domain;
628: *result+=path;
629: *result+=httponly;
630: *result+=secure;
631:
632: return result;
633: }
634:
1.56 misha 635: Table* parse_cookies(Request& r, Table *cookies){
636: Table& result=*new Table(new Cookies_table_template_columns);
637:
1.125 moko 638: for(Array_iterator<Table::element_type> i(*cookies); i; )
1.56 misha 639: if(ArrayString* row=parse_cookie(r, *i.next()->get(0)))
640: result+=row;
641:
642: return &result;
643: }
644:
1.75 moko 645: void tables_update(HashStringValue& tables, const String::Body name, const String& value){
1.72 moko 646: Table *table;
647: if(Value *valready=tables.get(name)) {
648: // second+ appearence
649: table=valready->get_table();
650: } else {
651: // first appearence
652: Table::columns_type columns=new ArrayString(1);
653: *columns+=new String("value");
654: table=new Table(columns);
655: tables.put(name, new VTable(table));
656: }
657: // this string becomes next row
658: ArrayString& row=*new ArrayString(1);
659: row+=&value;
660: *table+=&row;
661: }
662:
1.1 paf 663: /// @todo build .cookies field. use ^file.tables.SET-COOKIES.menu{ for now
1.72 moko 664: File_read_http_result pa_internal_file_read_http(Request& r, const String& file_spec, bool as_text, HashStringValue *options, bool transcode_text_result) {
1.1 paf 665: File_read_http_result result;
1.20 misha 666: char host[MAX_STRING];
1.66 moko 667: const char *idna_host;
1.1 paf 668: const char* uri;
1.49 moko 669: short port=80;
1.10 misha 670: const char* method="GET";
1.21 misha 671: bool method_is_get=true;
1.1 paf 672: HashStringValue* form=0;
673: int timeout_secs=2;
674: bool fail_on_status_ne_200=true;
1.12 misha 675: bool omit_post_charset=false;
1.1 paf 676: Value* vheaders=0;
1.10 misha 677: Value* vcookies=0;
1.11 misha 678: Value* vbody=0;
1.72 moko 679: Charset* asked_remote_charset=0;
1.58 moko 680: Charset* real_remote_charset=0;
1.1 paf 681: const char* user_cstr=0;
682: const char* password_cstr=0;
1.22 misha 683: const char* encode=0;
684: bool multipart=false;
1.1 paf 685:
686: if(options) {
687: int valid_options=pa_get_valid_file_options_count(*options);
688:
689: if(Value* vmethod=options->get(HTTP_METHOD_NAME)) {
690: valid_options++;
1.21 misha 691: method=vmethod->as_string().change_case(r.charsets.source(), String::CC_UPPER).cstr();
692: method_is_get=strcmp(method, "GET")==0;
1.1 paf 693: }
1.22 misha 694: if(Value* vencode=options->get(HTTP_FORM_ENCTYPE_NAME)) {
695: valid_options++;
696: encode=vencode->as_string().cstr();
697: }
1.1 paf 698: if(Value* vform=options->get(HTTP_FORM_NAME)) {
699: valid_options++;
700: form=vform->get_hash();
701: }
1.11 misha 702: if(vbody=options->get(HTTP_BODY_NAME)) {
1.1 paf 703: valid_options++;
704: }
705: if(Value* vtimeout=options->get(HTTP_TIMEOUT_NAME)) {
706: valid_options++;
707: timeout_secs=vtimeout->as_int();
708: }
1.11 misha 709: if(vheaders=options->get(HTTP_HEADERS_NAME)) {
1.1 paf 710: valid_options++;
711: }
1.11 misha 712: if(vcookies=options->get(HTTP_COOKIES_NAME)) {
1.10 misha 713: valid_options++;
714: }
1.1 paf 715: if(Value* vany_status=options->get(HTTP_ANY_STATUS_NAME)) {
716: valid_options++;
717: fail_on_status_ne_200=!vany_status->as_bool();
1.12 misha 718: }
1.20 misha 719: if(Value* vomit_post_charset=options->get(HTTP_OMIT_POST_CHARSET_NAME)){
1.12 misha 720: valid_options++;
721: omit_post_charset=vomit_post_charset->as_bool();
722: }
1.6 misha 723: if(Value* vcharset_name=options->get(PA_CHARSET_NAME)) {
1.77 moko 724: asked_remote_charset=&pa_charsets.get(vcharset_name->as_string());
1.58 moko 725: }
726: if(Value* vresponse_charset_name=options->get(PA_RESPONSE_CHARSET_NAME)) {
1.61 moko 727: valid_options++;
1.77 moko 728: real_remote_charset=&pa_charsets.get(vresponse_charset_name->as_string());
1.1 paf 729: }
730: if(Value* vuser=options->get(HTTP_USER)) {
731: valid_options++;
732: user_cstr=vuser->as_string().cstr();
733: }
734: if(Value* vpassword=options->get(HTTP_PASSWORD)) {
735: valid_options++;
736: password_cstr=vpassword->as_string().cstr();
737: }
738:
739: if(valid_options!=options->count())
1.46 misha 740: throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
1.1 paf 741: }
742: if(!asked_remote_charset) // defaulting to $request:charset
1.22 misha 743: asked_remote_charset=&(r.charsets).source();
744:
745: if(encode){
746: if(method_is_get)
1.127 moko 747: throw Exception(PARSER_RUNTIME, 0, "you cannot use $." HTTP_FORM_ENCTYPE_NAME " option with method GET");
1.22 misha 748:
749: multipart=strcasecmp(encode, HTTP_CONTENT_TYPE_MULTIPART_FORMDATA)==0;
750:
751: if(!multipart && strcasecmp(encode, HTTP_CONTENT_TYPE_FORM_URLENCODED)!=0)
1.72 moko 752: throw Exception(PARSER_RUNTIME, 0, "$." HTTP_FORM_ENCTYPE_NAME " option value can be " HTTP_CONTENT_TYPE_FORM_URLENCODED " or " HTTP_CONTENT_TYPE_MULTIPART_FORMDATA " only");
1.22 misha 753: }
1.1 paf 754:
1.11 misha 755: if(vbody){
756: if(method_is_get)
1.127 moko 757: throw Exception(PARSER_RUNTIME, 0, "you cannot use $." HTTP_BODY_NAME " option with method GET");
1.11 misha 758:
759: if(form)
1.127 moko 760: throw Exception(PARSER_RUNTIME, 0, "you cannot use options $." HTTP_BODY_NAME " and $." HTTP_FORM_NAME " together");
1.11 misha 761: }
1.1 paf 762:
763: //preparing request
1.29 misha 764: String& connect_string=*new String(file_spec);
1.1 paf 765:
1.48 moko 766: const char* request;
767: size_t request_size;
1.1 paf 768: {
769: // influence URLencoding of tainted pieces to String::L_URI lang
1.22 misha 770: Temp_client_charset temp(r.charsets, *asked_remote_charset);
1.1 paf 771:
1.44 misha 772: const char* connect_string_cstr=connect_string.untaint_and_transcode_cstr(String::L_URI, &(r.charsets));
1.1 paf 773:
774: const char* current=connect_string_cstr;
775: if(strncmp(current, "http://", 7)!=0)
1.72 moko 776: throw Exception(PARSER_RUNTIME, &connect_string, "does not start with http://"); //never
1.1 paf 777: current+=7;
778:
1.119 moko 779: pa_strncpy(host, current, sizeof(host));
1.34 misha 780: char* host_uri=lsplit(host, '/');
781: uri=host_uri?current+(host_uri-1-host):"/";
782: char* port_cstr=lsplit(host, ':');
1.49 moko 783:
784: if (port_cstr){
785: char* error_pos=0;
786: port=(short)strtol(port_cstr, &error_pos, 10);
787: if(port==0 || *error_pos)
788: throw Exception(PARSER_RUNTIME, &connect_string, "invalid port number '%s'", port_cstr);
789: }
1.1 paf 790:
1.66 moko 791: idna_host=pa_idna_encode(host, r.charsets.source());
792:
1.11 misha 793: // making request head
1.1 paf 794: String head;
1.11 misha 795: head << method << " " << uri;
1.28 misha 796: if(method_is_get && form)
797: head << (strchr(uri, '?')!=0?"&":"?") << pa_form2string(*form, r.charsets);
1.11 misha 798:
1.66 moko 799: head <<" HTTP/1.0" CRLF "Host: "<< idna_host;
1.49 moko 800: if (port != 80)
801: head << ":" << port_cstr;
802: head << CRLF;
1.11 misha 803:
1.71 moko 804: char* boundary= multipart ? get_uuid_boundary() : 0;
1.22 misha 805:
1.35 misha 806: String user_headers;
807: bool user_agent_specified=false;
808: bool content_type_specified=false;
809: bool content_type_url_encoded=false;
810: if(vheaders && !vheaders->is_string()) { // allow empty
811: if(HashStringValue *headers=vheaders->get_hash()) {
812: Http_pass_header_info info={
813: &(r.charsets),
814: &user_headers,
815: &user_agent_specified,
816: &content_type_specified,
817: &content_type_url_encoded};
818: headers->for_each<Http_pass_header_info*>(http_pass_header, &info);
819: } else
1.72 moko 820: throw Exception(PARSER_RUNTIME, 0, "headers param must be hash");
1.35 misha 821: };
822:
1.48 moko 823: const char* request_body=0;
1.22 misha 824: size_t post_size=0;
825: if(form && !method_is_get) {
1.38 misha 826: head << "Content-Type: " << (multipart ? HTTP_CONTENT_TYPE_MULTIPART_FORMDATA : HTTP_CONTENT_TYPE_FORM_URLENCODED);
1.28 misha 827:
828: if(!omit_post_charset)
829: head << "; charset=" << asked_remote_charset->NAME_CSTR();
830:
1.22 misha 831: if(multipart) {
1.28 misha 832: head << "; boundary=" << boundary;
1.48 moko 833: request_body=pa_form2string_multipart(*form, r/*charsets & mime_type needed*/, boundary, post_size/*correct post_size returned here*/);
1.22 misha 834: } else {
1.48 moko 835: request_body=pa_form2string(*form, r.charsets);
836: post_size=strlen(request_body);
1.22 misha 837: }
1.28 misha 838: head << CRLF;
1.35 misha 839: } else if(vbody) {
1.38 misha 840: // $.body was specified
1.35 misha 841: if(content_type_url_encoded){
1.36 misha 842: // transcode + url-encode
1.48 moko 843: request_body=vbody->as_string().untaint_and_transcode_cstr(String::L_URI, &(r.charsets));
1.35 misha 844: } else {
1.36 misha 845: // content-type != application/x-www-form-urlencoded -> transcode only, don't url-encode!
1.72 moko 846: const String &sbody=vbody->as_string();
847: request_body=Charset::transcode(String::C(sbody.cstr(), sbody.length()), r.charsets.source(), *asked_remote_charset).str;
1.35 misha 848: }
1.48 moko 849: post_size=strlen(request_body);
1.1 paf 850: }
851:
852: // http://www.ietf.org/rfc/rfc2617.txt
853: if(const String* authorization_field_value=basic_authorization_field(user_cstr, password_cstr))
1.38 misha 854: head << "Authorization: " << *authorization_field_value << CRLF;
1.1 paf 855:
1.35 misha 856: head << user_headers;
857:
1.1 paf 858: if(!user_agent_specified) // defaulting
1.38 misha 859: head << "User-Agent: " DEFAULT_USER_AGENT CRLF;
1.1 paf 860:
1.12 misha 861: if(form && !method_is_get && content_type_specified) // POST + form + content-type was specified
1.72 moko 862: throw Exception(PARSER_RUNTIME, 0, "$.content-type can't be specified with method POST");
1.12 misha 863:
1.11 misha 864: if(vcookies && !vcookies->is_string()){ // allow empty
1.10 misha 865: if(HashStringValue* cookies=vcookies->get_hash()) {
1.37 misha 866: head << "Cookie: ";
1.35 misha 867: Http_pass_header_info info={&(r.charsets), &head, 0, 0, 0};
1.10 misha 868: cookies->for_each<Http_pass_header_info*>(http_pass_cookie, &info);
869: head << CRLF;
870: } else
1.72 moko 871: throw Exception(PARSER_RUNTIME, 0, "cookies param must be hash");
1.10 misha 872: }
873:
1.48 moko 874: if(request_body)
1.128 moko 875: head << "Content-Length: " << pa_uitoa(post_size) << CRLF;
1.48 moko 876:
877: head << CRLF;
878:
879: const char *request_head=head.untaint_and_transcode_cstr(String::L_URI, &(r.charsets));
1.1 paf 880:
1.48 moko 881: if(request_body){
882: size_t head_size = strlen(request_head);
883: request_size=post_size + head_size;
884: char *ptr=(char *)pa_malloc_atomic(request_size);
885: memcpy(ptr, request_head, head_size);
886: memcpy(ptr+head_size, request_body, post_size);
887: request=ptr;
888: } else {
889: request_size=strlen(request_head);
890: request=request_head;
891: }
1.1 paf 892: }
893:
1.78 moko 894:
1.97 moko 895: HTTP_response response;
1.22 misha 896:
1.28 misha 897: // sending request
1.95 moko 898: int status_code;
899: ALTER_EXCEPTION_SOURCE(status_code=http_request(response, idna_host, port, request, request_size, timeout_secs, fail_on_status_ne_200), &connect_string);
1.78 moko 900:
1.72 moko 901: // processing results
1.78 moko 902: char* raw_body=response.buf + response.body_offset;
903: size_t raw_body_size=response.length - response.body_offset;
904:
1.1 paf 905: result.headers=new HashStringValue;
906: VHash* vtables=new VHash;
1.133 moko 907: HASH_PUT_CSTR(*result.headers, "tables", vtables);
1.72 moko 908:
1.78 moko 909: if (!real_remote_charset && !response.headers.content_type.is_empty())
910: real_remote_charset=detect_charset(response.headers.content_type.cstr());
1.1 paf 911:
1.72 moko 912: if(as_text)
1.77 moko 913: real_remote_charset=pa_charsets.checkBOM(raw_body, raw_body_size, real_remote_charset);
1.72 moko 914:
915: if (!real_remote_charset)
916: real_remote_charset=asked_remote_charset; // never null
917:
1.125 moko 918: for(Array_iterator<HTTP_Headers::Header> i(response.headers.headers); i; ){
1.85 moko 919: HTTP_Headers::Header header=i.next();
1.72 moko 920:
921: header.transcode(*real_remote_charset, r.charsets.source());
922:
923: String &header_value=*new String(header.value, String::L_TAINTED);
924:
925: tables_update(vtables->hash(), header.name, header_value);
926: result.headers->put(header.name, new VString(header_value));
1.16 misha 927: }
928:
1.72 moko 929: // filling $.cookies
1.89 moko 930: if(vcookies=vtables->hash().get("SET-COOKIE"))
1.133 moko 931: HASH_PUT_CSTR(*result.headers, HTTP_COOKIES_NAME, new VTable(parse_cookies(r, vcookies->get_table())));
1.72 moko 932:
1.1 paf 933: // output response
934: String::C real_body=String::C(raw_body, raw_body_size);
1.16 misha 935:
936: if(as_text && transcode_text_result && raw_body_size) { // raw_body_size must be checked because transcode returns CONST string in case length==0, which contradicts hacking few lines below
1.22 misha 937: real_body=Charset::transcode(real_body, *real_remote_charset, r.charsets.source());
1.1 paf 938: }
939:
940: result.str=const_cast<char *>(real_body.str); // hacking a little
941: result.length=real_body.length;
1.16 misha 942:
1.22 misha 943: if(as_text && result.length)
944: fix_line_breaks(result.str, result.length);
945:
1.1 paf 946: result.headers->put(file_status_name, new VInt(status_code));
1.16 misha 947:
1.1 paf 948: return result;
949: }
1.84 moko 950:
951: /* ********************** httpd *************************** */
952:
1.100 moko 953: enum EscapeState {
954: Initial,
955: Default,
956: EscapeFirst,
957: EscapeSecond
958: };
959:
960: static bool check_uri(const char *uri){
961: EscapeState state=Initial;
1.120 moko 962: uint escapedValue=0;
1.100 moko 963:
964: const char *pattern="/../";
965: const char *pos=pattern;
966:
967: while(*uri){
968: uchar c=(uchar)*(uri++);
969: switch(state) {
970: case Initial:
971: if(c!='/')
972: return false;
973: state=Default;
974: break;
975: case Default:
976: if(c=='%'){
977: state=EscapeFirst;
978: continue;
979: }
980: if(c=='?')
981: return true;
982: break;
983: case EscapeFirst:
984: if(isxdigit(c)){
985: state=EscapeSecond;
986: escapedValue=hex_value[c] << 4;
987: continue;
988: }
989: return false;
990: case EscapeSecond:
991: if(isxdigit(c)){
992: state=Default;
1.105 moko 993: c=(uchar)(escapedValue + hex_value[c]);
1.100 moko 994:
995: // implementing Apache AllowEncodedSlashes Off just in case
996: if(c=='/' || c=='\\')
997: return false;
998:
999: break;
1000: }
1001: return false;
1002: }
1003:
1004: if(c==*pos || c=='\\' && *pos=='/'){
1005: if(!*(++pos))
1006: return false;
1007: } else {
1008: pos=pattern;
1009: }
1010: }
1011: return true;
1012: }
1013:
1.84 moko 1014: class HTTPD_request : public HTTP_response {
1015: public:
1016: const char *method;
1017: const char *uri;
1018:
1.97 moko 1019: HTTPD_request() : HTTP_response(), method(NULL), uri(NULL){};
1.84 moko 1020:
1.120 moko 1021: ssize_t pa_recv(SOCKET sockfd, char *buf, size_t len);
1.103 moko 1022:
1.120 moko 1023: bool read(SOCKET sock, size_t size){
1.103 moko 1024: if(length + size > buf_size)
1025: resize(buf_size * 2 + size);
1026: ssize_t received_size=pa_recv(sock, buf + length, size);
1027: if(received_size == 0)
1028: return false;
1029: if(received_size < 0) {
1030: if(int no = pa_socks_errno())
1.111 moko 1031: throw Exception("httpd.read", 0, "error receiving request: %s (%d)", pa_socks_strerr(no), no);
1.103 moko 1032: return false;
1033: }
1034: length+=received_size;
1035: buf[length]='\0';
1036: return true;
1037: }
1038:
1.84 moko 1039: const char *extract_method(char *method_line){
1040: char* uri_start = strchr(method_line, ' ');
1041:
1042: if(!uri_start || uri_start == method_line)
1043: return NULL;
1044:
1045: char* uri_end=strchr(uri_start+1, ' ');
1046:
1047: if(!uri_end || uri_end == uri_start+1)
1048: return NULL;
1049:
1050: uri=pa_strdup(uri_start+1, uri_end-uri_start-1);
1.100 moko 1051: if(!check_uri(uri))
1052: throw Exception("httpd.request", 0, "invalid uri '%s'", uri);
1053:
1.84 moko 1054: return str_upper(method_line, uri_start-method_line);
1055: }
1056:
1.103 moko 1057:
1.120 moko 1058: bool read_header(SOCKET);
1059: size_t read_post(SOCKET, char *, size_t);
1.84 moko 1060: };
1061:
1062: enum HTTPD_request_state {
1063: HTTPD_METHOD,
1064: HTTPD_HEADERS
1065: };
1066:
1.120 moko 1067: ssize_t HTTPD_request::pa_recv(SOCKET sockfd, char *buffer, size_t len){
1.111 moko 1068: LOG(pa_log("httpd [%d] recv %d appending to %d ...", sockfd, len, length));
1.107 moko 1069:
1070: #ifdef PA_USE_ALARM
1.118 moko 1071: if(PA_NO_THREADS) signal(SIGALRM, timeout_handler);
1072: if(PA_NO_THREADS && sigsetjmp(timeout_env, 1)) {
1.111 moko 1073: LOG(pa_log("httpd [%d] recv got %d sec timeout", sockfd, pa_httpd_timeout));
1074: if(length) // timeout on "void" connection is normal
1075: throw Exception("httpd.timeout", 0, "timeout occurred while receiving request");
1076: return 0;
1.103 moko 1077: } else
1.107 moko 1078: #endif
1.103 moko 1079: {
1.107 moko 1080: ALARM(pa_httpd_timeout);
1.104 moko 1081: ssize_t result=recv(sockfd, buffer, len, 0);
1.107 moko 1082: ALARM(0);
1.111 moko 1083: LOG(pa_log("httpd [%d] recv got %d bytes", sockfd, result));
1.112 moko 1084: LOG(pa_log("httpd [%d] %s", sockfd, buffer));
1.103 moko 1085: return result;
1086: }
1087: }
1088:
1.115 moko 1089: static bool valid_http_method(const char * method){
1090: return method && (
1091: !strcmp(method, "GET") ||
1092: !strcmp(method, "HEAD") ||
1093: !strcmp(method, "POST") ||
1094: !strcmp(method, "PUT") ||
1095: !strcmp(method, "DELETE") ||
1096: !strcmp(method, "CONNECT") ||
1097: !strcmp(method, "OPTIONS") ||
1098: !strcmp(method, "TRACE") ||
1099: !strcmp(method, "PATCH")
1100: );
1101: }
1102:
1.120 moko 1103: bool HTTPD_request::read_header(SOCKET sock) {
1.84 moko 1104: enum HTTPD_request_state state = HTTPD_METHOD;
1105:
1106: size_t chunk_size = 0x400*4;
1107: resize(chunk_size);
1108:
1109: while(read(sock, chunk_size)){
1110: switch(state){
1111: case HTTPD_METHOD: {
1112: size_t method_size = first_line();
1113: if(!method_size)
1114: break;
1115:
1116: char *method_line = pa_strdup(buf, method_size);
1117: method = extract_method(method_line);
1118:
1.115 moko 1119: if(!valid_http_method(method))
1.84 moko 1120: throw Exception("httpd.method", new String(method ? method : method_line), "invalid request method");
1121: state = HTTPD_HEADERS;
1122: }
1123:
1124: case HTTPD_HEADERS: {
1125: if(!body_start())
1126: break;
1127:
1128: parse_headers();
1.110 moko 1129: return true;
1.84 moko 1130: }
1131: }
1132: }
1133:
1.111 moko 1134: if(!length){ // browsers open connections in advance and they will be empty unless user requests more pages
1135: LOG(pa_log("httpd [%d] void request", sock));
1.110 moko 1136: return false;
1.111 moko 1137: }
1.110 moko 1138:
1.84 moko 1139: if(state == HTTPD_METHOD)
1140: throw Exception("httpd.request", 0, "bad request from host - no method found (size=%u)", length);
1141:
1142: if(state == HTTPD_HEADERS){
1143: parse_headers();
1144: body_offset=length;
1145: }
1.110 moko 1146:
1147: return true;
1.84 moko 1148: }
1149:
1.120 moko 1150: size_t HTTPD_request::read_post(SOCKET sock, char *body, size_t max_bytes) {
1.87 moko 1151: size_t total_read = min(length - body_offset, max_bytes);
1.98 moko 1152: memcpy(body, buf + body_offset, total_read);
1.87 moko 1153:
1154: while (total_read < max_bytes){
1.103 moko 1155: ssize_t received_size = pa_recv(sock, body + total_read, max_bytes - total_read);
1.87 moko 1156: if(received_size == 0)
1157: return total_read;
1158: if(received_size < 0) {
1159: if(int no = pa_socks_errno())
1.111 moko 1160: throw Exception("httpd.read", new String(uri), "error receiving request body: %s (%d)", pa_socks_strerr(no), no);
1.87 moko 1161: return total_read;
1162: }
1163: total_read += received_size;
1164: }
1165: return total_read;
1166: }
1167:
1.84 moko 1168: /* ********************************************************** */
1169:
1.85 moko 1170: Array<HTTP_Headers::Header> &HTTPD_Connection::headers() {
1.84 moko 1171: return request->headers.headers;
1172: }
1173:
1174: const char *HTTPD_Connection::method() {
1175: return request->method;
1176: }
1177:
1178: const char *HTTPD_Connection::uri() {
1179: return request->uri;
1180: }
1181:
1182: const char *HTTPD_Connection::content_type() {
1183: return request->headers.content_type.cstr();
1184: }
1185:
1186: uint64_t HTTPD_Connection::content_length(){
1187: return request->headers.content_length;
1188: }
1189:
1.110 moko 1190: bool HTTPD_Connection::read_header(){
1.84 moko 1191: request = new HTTPD_request();
1.111 moko 1192: bool result = request->read_header(sock);
1193: LOG(if(result){
1194: pa_log("httpd [%d] got %s \"%s\"", sock, method(), uri());
1195: })
1196: return result;
1.84 moko 1197: }
1198:
1.87 moko 1199: size_t HTTPD_Connection::read_post(char *body, size_t max_bytes) {
1200: return request->read_post(sock, body, max_bytes);
1201: }
1202:
1.90 moko 1203: size_t HTTPD_Connection::send_body(const void *buf, size_t size) {
1.112 moko 1204: LOG(pa_log("httpd [%d] response %d bytes", sock, size));
1205: LOG(pa_log("httpd [%d] %s", sock, buf));
1.131 moko 1206: ssize_t result=pa_send(sock, (const char*)buf, size);
1207: if(result < 0) {
1.90 moko 1208: int no=pa_socks_errno();
1.111 moko 1209: throw Exception("httpd.write", 0, "error sending response: %s (%d)", pa_socks_strerr(no), no);
1.90 moko 1210: }
1.131 moko 1211: return result;
1.90 moko 1212: }
1213:
1.93 moko 1214: HTTPD_Connection::~HTTPD_Connection(){
1.120 moko 1215: if(sock != INVALID_SOCKET){
1.111 moko 1216: LOG(pa_log("httpd [%d] closed", sock));
1.93 moko 1217: closesocket(sock);
1.111 moko 1218: }
1.93 moko 1219: }
1220:
1.132 moko 1221: static int sock_ready(SOCKET fd, int timeout_value){
1.93 moko 1222: struct timeval timeout = {0, timeout_value * 1000};
1223: fd_set fds;
1224: FD_ZERO(&fds);
1225: FD_SET(fd, &fds);
1.120 moko 1226: int nfds = (int)fd + 1; /* typecast as nfds is ignored in MSVC anyway */
1.132 moko 1227: return select(nfds, &fds, NULL, NULL, &timeout)>0; /* read */
1.93 moko 1228: }
1229:
1.120 moko 1230: bool HTTPD_Connection::accept(SOCKET server_sock, int timeout_value) {
1.132 moko 1231: int ready = sock_ready(server_sock, timeout_value);
1.93 moko 1232: if (ready < 0) {
1233: int no=pa_socks_errno();
1234: if(no == EINTR)
1235: return false;
1236: throw Exception("httpd.accept", 0, "error waiting for connection: %s (%d)", pa_socks_strerr(no), no);
1237: }
1238: if (ready == 0)
1239: return false; /* Timeout */
1240:
1241: struct sockaddr_in addr;
1242: socklen_t sock_addr_len = sizeof(struct sockaddr_in);
1243: memset(&addr, 0, sock_addr_len);
1244:
1245: sock = ::accept(server_sock, (struct sockaddr *)&addr, &sock_addr_len);
1.120 moko 1246: if(sock == INVALID_SOCKET){
1.93 moko 1247: int no=pa_socks_errno();
1248: throw Exception("httpd.accept", 0, "error accepting connection: %s (%d)", pa_socks_strerr(no), no);
1249: }
1250:
1.123 moko 1251: // Has no positive performance effect, requires include <netinet/tcp.h>
1252: // static int sock_on=1;
1253: // setsockopt(sock, IPPROTO_TCP, TCP_NODELAY, (char *)&sock_on, sizeof(sock_on));
1254:
1.93 moko 1255: remote_addr = pa_strdup(inet_ntoa(addr.sin_addr));
1.111 moko 1256: LOG(pa_log("httpd [%d] accepted from %s", sock, remote_addr));
1.93 moko 1257: return true;
1258: }
1.84 moko 1259:
1.107 moko 1260: HTTPD_Server::HTTPD_MODE HTTPD_Server::mode = HTTPD_Server::SEQUENTIAL;
1.114 moko 1261: const char *HTTPD_Server::port=NULL;
1.106 moko 1262:
1.108 moko 1263: void HTTPD_Server::set_mode(const String &value){
1264: if(value == "sequental") mode = SEQUENTIAL;
1.113 moko 1265: #ifdef HAVE_TLS
1.108 moko 1266: else if (value == "threaded") mode = MULTITHREADED;
1.113 moko 1267: #endif
1.108 moko 1268: #ifdef _MSC_VER
1.117 moko 1269: else throw Exception("httpd.mode", &value, "$MAIN:HTTPD.mode must be 'sequental' or 'threaded'");
1.108 moko 1270: #else
1271: else if (value == "parallel") mode = PARALLEL;
1.117 moko 1272: else throw Exception("httpd.mode", &value, "$MAIN:HTTPD.mode must be 'sequental', 'parallel' or 'threaded'");
1.108 moko 1273: #endif
1274: }
1275:
1.120 moko 1276: SOCKET HTTPD_Server::bind(const char *host_port){
1.84 moko 1277: struct sockaddr_in me;
1278:
1.114 moko 1279: port = strchr(host_port, ':');
1.86 moko 1280: const char *host = NULL;
1.116 moko 1281: if(port){
1.114 moko 1282: if(port > host_port)
1283: host = pa_strdup(host_port, port - host_port);
1.86 moko 1284: port += 1;
1285: } else {
1286: port = host_port;
1287: }
1288:
1.105 moko 1289: if(!set_addr(&me, host, (short)pa_atoui(port))){
1.84 moko 1290: if (host)
1.127 moko 1291: throw Exception("httpd.bind", 0, "cannot resolve hostname \"%s\"", host);
1.84 moko 1292: me.sin_addr.s_addr=INADDR_ANY;
1293: }
1294:
1.120 moko 1295: SOCKET sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP/*0*/);
1.84 moko 1296:
1.120 moko 1297: if(sock == INVALID_SOCKET){
1.84 moko 1298: int no=pa_socks_errno();
1.127 moko 1299: throw Exception("httpd.bind", 0, "cannot make socket: %s (%d)", pa_socks_strerr(no), no);
1.84 moko 1300: }
1301:
1.93 moko 1302: static int sock_on = 1;
1303:
1.84 moko 1304: if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (char *)&sock_on, sizeof(sock_on)) ||
1305: setsockopt(sock, SOL_SOCKET, SO_KEEPALIVE, (char *)&sock_on, sizeof(sock_on)) ||
1306: ::bind(sock, (struct sockaddr*)&me, sizeof(me)) ||
1307: listen(sock, 16)) {
1.89 moko 1308: closesocket(sock);
1.84 moko 1309: int no = pa_socks_errno();
1.127 moko 1310: throw Exception("httpd.bind", 0, "cannot bind socket: %s (%d)", pa_socks_strerr(no), no);
1.84 moko 1311: }
1312: return sock;
1313: }
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