Annotation of parser3/src/main/pa_http.C, revision 1.141
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_vfile.h"
14: #include "pa_random.h"
1.1 paf 15:
1.140 moko 16: #ifndef WIN32
17: #include <netinet/tcp.h> // for TCP_NODELAY
18: #endif
19:
1.141 ! moko 20: volatile const char * IDENT_PA_HTTP_C="$Id: pa_http.C,v 1.140 2026/10/16 13:55:16 moko Exp $" IDENT_PA_HTTP_H;
1.53 moko 21:
1.1 paf 22: // defines
23:
1.19 misha 24: #define HTTP_METHOD_NAME "method"
25: #define HTTP_FORM_NAME "form"
26: #define HTTP_BODY_NAME "body"
27: #define HTTP_TIMEOUT_NAME "timeout"
28: #define HTTP_HEADERS_NAME "headers"
1.22 misha 29: #define HTTP_FORM_ENCTYPE_NAME "enctype"
1.19 misha 30: #define HTTP_ANY_STATUS_NAME "any-status"
1.59 moko 31: #define HTTP_OMIT_POST_CHARSET_NAME "omit-post-charset" // ^file::load[...;http://...;$.method[post]] by default adds charset to content-type
1.12 misha 32:
1.1 paf 33: #define HTTP_USER "user"
34: #define HTTP_PASSWORD "password"
35:
1.70 moko 36: #define HTTP_USER_AGENT "user-agent"
1.1 paf 37: #define DEFAULT_USER_AGENT "parser3"
38:
1.59 moko 39: #ifndef INADDR_NONE
40: #define INADDR_NONE ((ulong) -1)
41: #endif
1.1 paf 42:
43: #undef CRLF
44: #define CRLF "\r\n"
45:
1.138 moko 46: #define HTTP_TIMEOUT_COMMENT "timeout occurred while retrieving document"
47:
1.54 misha 48: // helpers
1.56 misha 49:
1.130 moko 50: #ifdef HTTPD_DEBUG
51: void pa_log(const char* fmt, ...);
52: #define LOG(action) action
53: #else
54: #define LOG(action)
55: #endif
56:
57: ssize_t pa_send(int sock, const char *buffer, size_t len){
58: size_t total_sent = 0;
59: while (total_sent < len) {
1.141 ! moko 60: ssize_t bytes_sent=pa_sock_send(sock, buffer + total_sent, len - total_sent);
1.130 moko 61: if (bytes_sent < 0) {
62: return bytes_sent;
63: } else if (bytes_sent == 0) {
64: // Connection closed by the remote peer?
65: break;
66: }
67: LOG(
68: if(bytes_sent != len - total_sent)
69: pa_log("httpd [%d] partial send %d of (%d)", sock, bytes_sent, len - total_sent)
70: );
71: total_sent += bytes_sent;
72: }
73: return total_sent;
74: }
75:
1.138 moko 76: // socket operation failed on SO_*TIMEO timeout
77: static bool sock_timed_out(int no){
78: #ifdef WIN32
79: return no==WSAETIMEDOUT;
80: #else
81: return no==EAGAIN || no==EWOULDBLOCK || no==EINPROGRESS /* connect on linux */;
82: #endif
83: }
84:
85: static int check_socket_timeout(int no){
86: if(sock_timed_out(no))
87: throw Exception("http.timeout", 0, HTTP_TIMEOUT_COMMENT);
88: return no;
89: }
90:
1.85 moko 91: bool HTTP_Headers::add_header(const char *line){
1.78 moko 92: const char *value=strchr(line, ':');
93:
94: if(value && value != line){ // we need only headers, not the response code
1.134 moko 95: Header header = Header(String::Body(str_upper(line, value-line)), String::Body(value+1).trim(String::TRIM_BOTH, " \t\n\r"));
1.78 moko 96:
97: if(header.name == String::Body(HTTP_CONTENT_TYPE_UPPER) && content_type.is_empty())
98: content_type=header.value;
99:
100: if(header.name == String::Body("CONTENT-LENGTH") && content_length==0)
1.95 moko 101: ALTER_EXCEPTION_COMMENT(content_length=pa_atoul(header.value.cstr()), " for content-length");
1.78 moko 102:
103: headers+=header;
104:
105: return true;
106: }
107: return false;
108: }
109:
1.54 misha 110: class Cookies_table_template_columns: public ArrayString {
111: public:
112: Cookies_table_template_columns() {
113: *this+=new String("name");
114: *this+=new String("value");
115: *this+=new String("expires");
116: *this+=new String("max-age");
117: *this+=new String("domain");
118: *this+=new String("path");
119: *this+=new String("httponly");
120: *this+=new String("secure");
121: }
122: };
123:
124:
1.1 paf 125: static bool set_addr(struct sockaddr_in *addr, const char* host, const short port){
1.22 misha 126: memset(addr, 0, sizeof(*addr));
127: addr->sin_family=AF_INET;
128: addr->sin_port=htons(port);
129: if(host) {
1.65 moko 130: struct hostent *hostIP=gethostbyname(host);
131: if(hostIP && hostIP->h_addrtype == AF_INET){
132: memcpy(&addr->sin_addr, hostIP->h_addr, hostIP->h_length);
133: return true;
134: }
135: }
136: return false;
1.1 paf 137: }
138:
1.84 moko 139: class HTTP_response : public PA_Allocated {
1.78 moko 140: public:
141: char *buf;
142: size_t length;
143: size_t buf_size;
144: size_t body_offset;
145:
1.85 moko 146: HTTP_Headers headers;
1.78 moko 147:
1.97 moko 148: HTTP_response() : buf(NULL), length(0), buf_size(0), body_offset(0){}
1.78 moko 149:
150: void resize(size_t size){
151: buf_size=size;
152: buf=(char *)pa_realloc(buf, size + 1);
153: }
154:
1.120 moko 155: bool read(SOCKET sock, size_t size){
1.103 moko 156: if(length + size > buf_size)
157: resize(buf_size * 2 + size);
1.141 ! moko 158: ssize_t received_size=pa_sock_recv(sock, buf + length, size);
1.103 moko 159: if(received_size == 0)
1.78 moko 160: return false;
1.103 moko 161: if(received_size < 0) {
1.138 moko 162: if(int no = check_socket_timeout(pa_socks_errno()))
1.102 moko 163: throw Exception("http.timeout", 0, "error receiving response: %s (%d)", pa_socks_strerr(no), no);
1.78 moko 164: return false;
165: }
166: length+=received_size;
167: buf[length]='\0';
168: return true;
169: }
170:
1.83 moko 171: size_t first_line(){
1.89 moko 172: char *header=strchr(buf, '\n');
173: if(!header)
1.78 moko 174: return false;
175:
1.89 moko 176: return header-buf;
1.78 moko 177: }
178:
179: const char *status_code(char *status_line, int &result){
180: char* status_start = strchr(status_line, ' ');
181:
182: if(!(status_start++))
183: return status_line;
184:
185: char* status_end=strchr(status_start, ' ');
186:
187: if(!status_end)
188: return status_line;
189:
190: if(status_end==status_start)
191: return status_line;
1.1 paf 192:
1.78 moko 193: const char *result_str=pa_strdup(status_start, status_end-status_start);
1.95 moko 194: ALTER_EXCEPTION_COMMENT(result=pa_atoui(result_str), " for HTTP status");
1.78 moko 195: return result_str;
196: }
1.2 paf 197:
1.78 moko 198: bool body_start(){
199: char *p=buf;
200: while((p=strchr(p, '\n'))) {
201: if(p[1]=='\r' && p[2]=='\n'){ // \r\n\r\n
202: *p='\0';
203: body_offset=p-buf+3;
204: return true;
205: }
206: if(p[1]=='\n') { // \n\n
207: *p='\0';
208: body_offset=p-buf+2;
209: return true;
210: }
211: p++;
212: }
213: return false;
1.2 paf 214: }
1.78 moko 215:
216: void parse_headers(){
217: const String header_block(buf, String::L_TAINTED);
218:
219: ArrayString aheaders;
220: header_block.split(aheaders, 0, "\n");
221:
1.124 moko 222: ArrayString::Iterator i(aheaders);
1.78 moko 223: i.next(); // skipping status
1.125 moko 224: for(;i;){
1.78 moko 225: const char *line=i.next()->cstr();
226: if(!headers.add_header(line))
1.97 moko 227: throw Exception("http.response", 0, "bad response from host - bad header \"%s\"", line);
1.78 moko 228: }
1.1 paf 229: }
230:
1.120 moko 231: int read_response(SOCKET sock, bool fail_on_status_ne_200);
1.78 moko 232: };
233:
234: enum HTTP_response_state {
235: HTTP_STATUS_CODE,
236: HTTP_HEADERS,
237: HTTP_BODY
238: };
239:
1.120 moko 240: int HTTP_response::read_response(SOCKET sock, bool fail_on_status_ne_200) {
1.78 moko 241: HTTP_response_state state=HTTP_STATUS_CODE;
242: int result=0;
243:
244: size_t chunk_size=0x400*16;
1.88 moko 245: resize(2*chunk_size);
1.78 moko 246:
1.88 moko 247: while(read(sock, chunk_size)){
1.78 moko 248: switch(state){
249: case HTTP_STATUS_CODE: {
1.88 moko 250: size_t status_size=first_line();
1.78 moko 251: if(!status_size)
252: break;
253:
1.88 moko 254: const char *status=status_code(pa_strdup(buf, status_size), result);
1.78 moko 255:
256: if(!result || fail_on_status_ne_200 && result!=200)
257: throw Exception("http.status", status ? new String(status) : &String::Empty, "invalid HTTP response status");
258:
259: state=HTTP_HEADERS;
260: }
261:
262: case HTTP_HEADERS: {
1.88 moko 263: if(!body_start())
1.78 moko 264: break;
265:
1.88 moko 266: parse_headers();
1.78 moko 267:
1.97 moko 268: size_t content_length=check_file_size(headers.content_length, 0);
1.88 moko 269: if(content_length>0 && (content_length + body_offset) > length){
270: resize(content_length + body_offset + 0x400*64);
1.78 moko 271: }
272:
273: state=HTTP_BODY;
1.1 paf 274: break;
275: }
1.78 moko 276:
277: case HTTP_BODY: {
278: chunk_size=0x400*64;
1.1 paf 279: break;
280: }
281: }
282: }
1.78 moko 283:
284: if(state==HTTP_STATUS_CODE)
1.97 moko 285: throw Exception("http.response", 0, "bad response from host - no status found (size=%u)", length);
1.78 moko 286:
287: if(state==HTTP_HEADERS){
1.88 moko 288: parse_headers();
289: body_offset=length;
1.1 paf 290: }
1.78 moko 291:
292: return result;
1.1 paf 293: }
294:
295: /* ********************** request *************************** */
296:
297: #if defined(SIGALRM) && defined(HAVE_SIGSETJMP) && defined(HAVE_SIGLONGJMP)
1.138 moko 298: # define PA_HAVE_ALARM
1.1 paf 299: #endif
300:
1.138 moko 301: #ifdef PA_HAVE_ALARM
1.1 paf 302: static sigjmp_buf timeout_env;
303: static void timeout_handler(int /*sig*/){
1.101 moko 304: siglongjmp(timeout_env, 1);
1.1 paf 305: }
1.118 moko 306:
1.138 moko 307: // alarm is per process, threads use SO_*TIMEO
308: #define PA_USE_ALARM (HTTPD_Server::mode != HTTPD_Server::MULTITHREADED)
1.118 moko 309:
1.138 moko 310: #define ALARM(value) if(PA_USE_ALARM) alarm(value)
1.101 moko 311: #else
1.138 moko 312: #define PA_USE_ALARM false
1.101 moko 313: #define ALARM(value)
1.1 paf 314: #endif
315:
1.138 moko 316: // SO_*TIMEO can be defined in .h but not implemented in protocol, so errors are ignored
317: static void set_socket_timeout(SOCKET sock, int option, int timeout_secs){
318: #ifdef WIN32
319: int timeout=timeout_secs < INT_MAX/1000 ? timeout_secs*1000 : 0 /* infinite */;
320: #else
321: struct timeval timeout={timeout_secs, 0};
322: #endif
323: setsockopt(sock, SOL_SOCKET, option, (const char*)&timeout, sizeof(timeout));
324: }
325:
1.78 moko 326: 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 327: if(!host)
1.73 moko 328: throw Exception("http.host", 0, "zero hostname"); //never
1.1 paf 329:
1.120 moko 330: volatile SOCKET sock=INVALID_SOCKET; // to prevent makeing it register variable, because it will be clobbered by longjmp [thanks gcc warning]
1.101 moko 331:
1.138 moko 332: #ifdef PA_HAVE_ALARM
333: if(PA_USE_ALARM) signal(SIGALRM, timeout_handler);
334: if(PA_USE_ALARM && sigsetjmp(timeout_env, 1)) {
1.101 moko 335: // duplicating closesocket to make code more simple for old compilers
1.120 moko 336: if(sock != INVALID_SOCKET)
1.101 moko 337: closesocket(sock);
1.138 moko 338: throw Exception("http.timeout", 0, HTTP_TIMEOUT_COMMENT);
1.1 paf 339: return 0; // never
1.101 moko 340: } else
1.1 paf 341: #endif
1.101 moko 342: {
343: ALARM(timeout_secs);
1.1 paf 344: try {
345: int result;
346: struct sockaddr_in dest;
347:
348: if(!set_addr(&dest, host, port))
1.127 moko 349: throw Exception("http.host", 0, "cannot resolve hostname \"%s\"", host);
1.1 paf 350:
1.120 moko 351: if((sock=socket(AF_INET, SOCK_STREAM, IPPROTO_TCP/*0*/)) == INVALID_SOCKET) {
1.1 paf 352: int no=pa_socks_errno();
1.127 moko 353: throw Exception("http.connect", 0, "cannot make socket: %s (%d)", pa_socks_strerr(no), no);
1.1 paf 354: }
355:
356: // To enable SO_DONTLINGER (that is, disable SO_LINGER)
357: // l_onoff should be set to zero and setsockopt should be called
358: linger dont_linger={0,0};
359: setsockopt(sock, SOL_SOCKET, SO_LINGER, (const char *)&dont_linger, sizeof(dont_linger));
360:
1.138 moko 361: if(!PA_USE_ALARM){
362: set_socket_timeout(sock, SO_SNDTIMEO, timeout_secs);
363: set_socket_timeout(sock, SO_RCVTIMEO, timeout_secs);
364: }
1.1 paf 365:
366: if(connect(sock, (struct sockaddr *)&dest, sizeof(dest))) {
1.138 moko 367: int no=check_socket_timeout(pa_socks_errno());
1.127 moko 368: throw Exception("http.connect", 0, "cannot connect to host \"%s\": %s (%d)", host, pa_socks_strerr(no), no);
1.1 paf 369: }
1.22 misha 370:
1.130 moko 371: if(pa_send(sock, request, request_size) < 0) {
1.138 moko 372: int no=check_socket_timeout(pa_socks_errno());
1.78 moko 373: throw Exception("http.timeout", 0, "error sending request: %s (%d)", pa_socks_strerr(no), no);
1.1 paf 374: }
375:
1.88 moko 376: result=response.read_response(sock, fail_on_status_ne_200);
1.78 moko 377: closesocket(sock);
1.101 moko 378: ALARM(0);
1.1 paf 379: return result;
380: } catch(...) {
1.101 moko 381: ALARM(0);
1.120 moko 382: if(sock != INVALID_SOCKET)
1.78 moko 383: closesocket(sock);
1.1 paf 384: rethrow;
385: }
386: }
387: }
388:
389: #ifndef DOXYGEN
390: struct Http_pass_header_info {
391: Request_charsets* charsets;
392: String* request;
1.35 misha 393: bool* user_agent_specified;
394: bool* content_type_specified;
395: bool* content_type_url_encoded;
1.1 paf 396: };
397: #endif
1.50 moko 398:
399: char *pa_http_safe_header_name(const char *name) {
400: char *result=pa_strdup(name);
401: char *n=result;
1.52 misha 402: if(!pa_isalpha((unsigned char)*n))
1.50 moko 403: *n++ = '_';
404: for(; *n; ++n) {
1.52 misha 405: if (!pa_isalnum((unsigned char)*n) && *n != '-' && *n != '_')
1.50 moko 406: *n = '_';
407: }
408: return result;
409: }
410:
1.101 moko 411: static void http_pass_header(HashStringValue::key_type aname, HashStringValue::value_type avalue, Http_pass_header_info *info) {
1.9 misha 412:
1.41 misha 413: const char* name_cstr=aname.cstr();
414:
1.38 misha 415: if(strcasecmp(name_cstr, HTTP_CONTENT_LENGTH)==0)
416: return;
417:
1.50 moko 418: String name=String(pa_http_safe_header_name(capitalize(name_cstr)), String::L_AS_IS);
419: String value=attributed_meaning_to_string(*avalue, String::L_HTTP_HEADER, true);
1.9 misha 420:
1.35 misha 421: *info->request << name << ": " << value << CRLF;
1.1 paf 422:
1.38 misha 423: if(strcasecmp(name_cstr, HTTP_USER_AGENT)==0)
1.35 misha 424: *info->user_agent_specified=true;
1.38 misha 425: if(strcasecmp(name_cstr, HTTP_CONTENT_TYPE)==0){
1.35 misha 426: *info->content_type_specified=true;
1.62 moko 427: *info->content_type_url_encoded=pa_strncasecmp(value.cstr(), HTTP_CONTENT_TYPE_FORM_URLENCODED)==0;
1.35 misha 428: }
1.1 paf 429: }
430:
1.10 misha 431: static void http_pass_cookie(HashStringValue::key_type name,
1.20 misha 432: HashStringValue::value_type value,
433: Http_pass_header_info *info) {
1.10 misha 434:
1.17 misha 435: *info->request << String(name, String::L_HTTP_COOKIE) << "="
1.31 misha 436: << attributed_meaning_to_string(*value, String::L_HTTP_COOKIE, true)
1.10 misha 437: << "; ";
438:
439: }
1.1 paf 440:
441: static const String* basic_authorization_field(const char* user, const char* pass) {
442: if(!user&& !pass)
443: return 0;
444:
445: String combined;
446: if(user)
447: combined<<user;
448: combined<<":";
449: if(pass)
450: combined<<pass;
451:
1.20 misha 452: String* result=new String("Basic ");
1.82 moko 453: *result<<pa_base64_encode(combined.cstr(), combined.length(), Base64Options(false /*no wrap*/));
1.1 paf 454: return result;
455: }
456:
1.73 moko 457: static void form_string_value2string(HashStringValue::key_type key, const String& value, String& result) {
1.30 misha 458: result << String(key, String::L_URI) << "=" << String(value, String::L_URI) << "&";
1.1 paf 459: }
1.20 misha 460:
1.1 paf 461: #ifndef DOXYGEN
462: struct Form_table_value2string_info {
463: HashStringValue::key_type key;
464: String& result;
465:
466: Form_table_value2string_info(HashStringValue::key_type akey, String& aresult):
467: key(akey), result(aresult) {}
468: };
469: #endif
470: static void form_table_value2string(Table::element_type row, Form_table_value2string_info* info) {
471: form_string_value2string(info->key, *row->get(0), info->result);
472: }
1.73 moko 473:
474: static void form_value2string(HashStringValue::key_type key, HashStringValue::value_type value, String* result) {
1.1 paf 475: if(const String* svalue=value->get_string())
476: form_string_value2string(key, *svalue, *result);
477: else if(Table* tvalue=value->get_table()) {
478: Form_table_value2string_info info(key, *result);
479: tvalue->for_each(form_table_value2string, &info);
480: } else
1.73 moko 481: throw Exception(PARSER_RUNTIME, new String(key, String::L_TAINTED),
1.63 moko 482: "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 483: }
1.20 misha 484:
1.5 misha 485: const char* pa_form2string(HashStringValue& form, Request_charsets& charsets) {
1.1 paf 486: String string;
1.3 paf 487: form.for_each<String*>(form_value2string, &string);
1.44 misha 488: return string.untaint_and_transcode_cstr(String::L_URI, &charsets);
1.1 paf 489: }
1.22 misha 490:
491: struct FormPart {
492: Request* r;
493: const char* boundary;
1.48 moko 494: String* string;
1.22 misha 495: Form_table_value2string_info* info;
1.48 moko 496:
497: struct BinaryBlock{
498: const char* ptr;
499: size_t length;
500:
501: BinaryBlock(String* astring, Request* r): ptr(astring->untaint_and_transcode_cstr(String::L_AS_IS, &r->charsets)), length(strlen(ptr)){}
502: BinaryBlock(const char* aptr, size_t alength): ptr(aptr), length(alength){}
503: };
504:
505: Array<BinaryBlock> blocks;
506:
507: FormPart(Request* ar, const char* aboundary): r(ar), boundary(aboundary), string(new String()){}
508:
509: const char *post(size_t &length){
510: if(blocks.count()){
511: blocks+=BinaryBlock(string, r);
512:
513: length=0;
514: for(size_t i=0; i<blocks.count(); i++)
515: length+=blocks[i].length;
516:
517: char *result=(char *)pa_malloc_atomic(length);
518: char *ptr=result;
519:
520: for(size_t i=0; i<blocks.count(); i++){
521: memcpy(ptr, blocks[i].ptr, blocks[i].length);
522: ptr+=blocks[i].length;
523: }
524:
525: return result;
526: } else {
527: BinaryBlock result(string, r);
528: length=result.length;
529: return result.ptr;
530: }
531: }
1.22 misha 532: };
533:
1.73 moko 534: static void form_part_boundary_header(FormPart& part, String::Body name, const char* file_name=0) {
535: *part.string << "--" << part.boundary << CRLF CONTENT_DISPOSITION_CAPITALIZED ": form-data; name=\"" << name << "\"";
1.22 misha 536: if(file_name){
537: if(strcmp(file_name, NONAME_DAT)!=0)
1.48 moko 538: *part.string << "; filename=\"" << file_name << "\"";
539: *part.string << CRLF HTTP_CONTENT_TYPE_CAPITALIZED ": " << part.r->mime_type_of(file_name);
1.22 misha 540: }
1.48 moko 541: *part.string << CRLF CRLF;
1.22 misha 542: }
543:
1.73 moko 544: static void form_string_value2part(HashStringValue::key_type key, const String& value, FormPart& part) {
1.28 misha 545: form_part_boundary_header(part, key);
1.48 moko 546: *part.string << value << CRLF;
1.22 misha 547: }
548:
1.73 moko 549: static void form_file_value2part(HashStringValue::key_type key, VFile& vfile, FormPart& part) {
1.28 misha 550: form_part_boundary_header(part, key, vfile.fields().get(name_name)->as_string().cstr());
1.48 moko 551: part.blocks+=FormPart::BinaryBlock(part.string, part.r);
552: part.blocks+=FormPart::BinaryBlock(vfile.value_ptr(), vfile.value_size());
553: part.string=new String();
554: *part.string << CRLF;
1.22 misha 555: }
556:
557: static void form_table_value2part(Table::element_type row, FormPart* part) {
558: form_string_value2part(part->info->key, *row->get(0), *part);
559: }
560:
1.136 moko 561: static bool form_element_value2part(HashStringValue::key_type key, HashStringValue::value_type value, FormPart& part) {
562: if(const String* svalue=value->get_string()){
563: form_string_value2part(key, *svalue, part);
564: } else if(VFile* vfile=dynamic_cast<VFile *>(value)){
565: form_file_value2part(key, *vfile, part);
566: } else {
567: return false;
568: }
569: return true;
570: }
571:
1.73 moko 572: static void form_value2part(HashStringValue::key_type key, HashStringValue::value_type value, FormPart& part) {
1.136 moko 573: if(form_element_value2part(key, value, part)) {
574: // string or file
575: } else if(Table* tvalue=value->get_table()) {
1.48 moko 576: Form_table_value2string_info info(key, *part.string);
1.22 misha 577: part.info = &info;
578: tvalue->for_each(form_table_value2part, &part);
1.136 moko 579: } else if(HashStringValue* hvalue=value->get_hash()){
580: // hash or array: several strings/files under the same field name
581: for(HashStringValue::Iterator j(*hvalue); j; j.next())
582: if(!form_element_value2part(key, j.value(), part))
583: 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 584: } else
1.136 moko 585: 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 586: }
587:
588: const char* pa_form2string_multipart(HashStringValue& form, Request& r, const char* boundary, size_t& post_size){
1.48 moko 589: FormPart formpart(&r, boundary);
1.22 misha 590: form.for_each<FormPart&>(form_value2part, formpart);
1.48 moko 591: *formpart.string << "--" << boundary << "--";
592: // @todo: return binary blocks here to save memory in pa_internal_file_read_http
593: return formpart.post(post_size);
1.22 misha 594: }
595:
1.54 misha 596: // Set-Cookie: name=value; Domain=docs.foo.com; Path=/accounts; Expires=Wed, 13-Jan-2021 22:23:01 GMT; Secure; HttpOnly
597: static ArrayString* parse_cookie(Request& r, const String& cookie) {
1.64 moko 598: char *current=pa_strdup(cookie.cstr());
1.54 misha 599:
600: const String* name=0;
1.55 moko 601: const String* value=&String::Empty;
602: const String* expires=&String::Empty;
603: const String* max_age=&String::Empty;
604: const String* path=&String::Empty;
605: const String* domain=&String::Empty;
606: const String* httponly=&String::Empty;
607: const String* secure=&String::Empty;
1.54 misha 608:
609: bool first_pair=true;
610:
611: do {
612: if(char *meaning=search_stop(current, ';'))
613: if(char *attribute=search_stop(meaning, '=')) {
614: const String* sname=new String(unescape_chars(attribute, strlen(attribute), &r.charsets.source(), true/*don't convert '"' to space*/), String::L_TAINTED);
615: const String* smeaning=0;
616: if(meaning)
617: smeaning=new String(unescape_chars(meaning, strlen(meaning), &r.charsets.source(), true/*don't convert '"' to space*/), String::L_TAINTED);
618:
619: if(first_pair) {
620: // name + value
621: name=sname;
1.122 moko 622: if(smeaning)
623: value=smeaning;
1.54 misha 624: first_pair=false;
625: } else {
626: const String& slower=sname->change_case(r.charsets.source(), String::CC_LOWER);
627:
628: if(slower == "expires")
629: expires=smeaning;
630: else if(slower == "max-age")
631: max_age=smeaning;
632: else if(slower == "domain")
633: domain=smeaning;
634: else if(slower == "path")
635: path=smeaning;
636: else if(slower == "httponly")
637: httponly=new String("1", String::L_CLEAN);
638: else if(slower == "secure")
639: secure=new String("1", String::L_CLEAN);
640: else {
641: // todo@ ?
642: }
643: }
644: }
645: } while(current);
646:
647: if(!name)
648: return 0;
649:
650: ArrayString* result=new ArrayString(8);
651: *result+=name;
652: *result+=value;
653: *result+=expires;
654: *result+=max_age;
655: *result+=domain;
656: *result+=path;
657: *result+=httponly;
658: *result+=secure;
659:
660: return result;
661: }
662:
1.56 misha 663: Table* parse_cookies(Request& r, Table *cookies){
664: Table& result=*new Table(new Cookies_table_template_columns);
665:
1.125 moko 666: for(Array_iterator<Table::element_type> i(*cookies); i; )
1.56 misha 667: if(ArrayString* row=parse_cookie(r, *i.next()->get(0)))
668: result+=row;
669:
670: return &result;
671: }
672:
1.75 moko 673: void tables_update(HashStringValue& tables, const String::Body name, const String& value){
1.72 moko 674: Table *table;
675: if(Value *valready=tables.get(name)) {
676: // second+ appearence
677: table=valready->get_table();
678: } else {
679: // first appearence
680: Table::columns_type columns=new ArrayString(1);
681: *columns+=new String("value");
682: table=new Table(columns);
683: tables.put(name, new VTable(table));
684: }
685: // this string becomes next row
686: ArrayString& row=*new ArrayString(1);
687: row+=&value;
688: *table+=&row;
689: }
690:
1.1 paf 691: /// @todo build .cookies field. use ^file.tables.SET-COOKIES.menu{ for now
1.72 moko 692: 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 693: File_read_http_result result;
1.20 misha 694: char host[MAX_STRING];
1.66 moko 695: const char *idna_host;
1.1 paf 696: const char* uri;
1.49 moko 697: short port=80;
1.10 misha 698: const char* method="GET";
1.21 misha 699: bool method_is_get=true;
1.1 paf 700: HashStringValue* form=0;
701: int timeout_secs=2;
702: bool fail_on_status_ne_200=true;
1.12 misha 703: bool omit_post_charset=false;
1.1 paf 704: Value* vheaders=0;
1.10 misha 705: Value* vcookies=0;
1.11 misha 706: Value* vbody=0;
1.72 moko 707: Charset* asked_remote_charset=0;
1.58 moko 708: Charset* real_remote_charset=0;
1.1 paf 709: const char* user_cstr=0;
710: const char* password_cstr=0;
1.22 misha 711: const char* encode=0;
712: bool multipart=false;
1.1 paf 713:
714: if(options) {
715: int valid_options=pa_get_valid_file_options_count(*options);
716:
717: if(Value* vmethod=options->get(HTTP_METHOD_NAME)) {
718: valid_options++;
1.21 misha 719: method=vmethod->as_string().change_case(r.charsets.source(), String::CC_UPPER).cstr();
720: method_is_get=strcmp(method, "GET")==0;
1.1 paf 721: }
1.22 misha 722: if(Value* vencode=options->get(HTTP_FORM_ENCTYPE_NAME)) {
723: valid_options++;
724: encode=vencode->as_string().cstr();
725: }
1.1 paf 726: if(Value* vform=options->get(HTTP_FORM_NAME)) {
727: valid_options++;
728: form=vform->get_hash();
729: }
1.11 misha 730: if(vbody=options->get(HTTP_BODY_NAME)) {
1.1 paf 731: valid_options++;
732: }
733: if(Value* vtimeout=options->get(HTTP_TIMEOUT_NAME)) {
734: valid_options++;
735: timeout_secs=vtimeout->as_int();
736: }
1.11 misha 737: if(vheaders=options->get(HTTP_HEADERS_NAME)) {
1.1 paf 738: valid_options++;
739: }
1.11 misha 740: if(vcookies=options->get(HTTP_COOKIES_NAME)) {
1.10 misha 741: valid_options++;
742: }
1.1 paf 743: if(Value* vany_status=options->get(HTTP_ANY_STATUS_NAME)) {
744: valid_options++;
745: fail_on_status_ne_200=!vany_status->as_bool();
1.12 misha 746: }
1.20 misha 747: if(Value* vomit_post_charset=options->get(HTTP_OMIT_POST_CHARSET_NAME)){
1.12 misha 748: valid_options++;
749: omit_post_charset=vomit_post_charset->as_bool();
750: }
1.6 misha 751: if(Value* vcharset_name=options->get(PA_CHARSET_NAME)) {
1.77 moko 752: asked_remote_charset=&pa_charsets.get(vcharset_name->as_string());
1.58 moko 753: }
754: if(Value* vresponse_charset_name=options->get(PA_RESPONSE_CHARSET_NAME)) {
1.61 moko 755: valid_options++;
1.77 moko 756: real_remote_charset=&pa_charsets.get(vresponse_charset_name->as_string());
1.1 paf 757: }
758: if(Value* vuser=options->get(HTTP_USER)) {
759: valid_options++;
760: user_cstr=vuser->as_string().cstr();
761: }
762: if(Value* vpassword=options->get(HTTP_PASSWORD)) {
763: valid_options++;
764: password_cstr=vpassword->as_string().cstr();
765: }
766:
767: if(valid_options!=options->count())
1.46 misha 768: throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
1.1 paf 769: }
770: if(!asked_remote_charset) // defaulting to $request:charset
1.22 misha 771: asked_remote_charset=&(r.charsets).source();
772:
773: if(encode){
774: if(method_is_get)
1.127 moko 775: throw Exception(PARSER_RUNTIME, 0, "you cannot use $." HTTP_FORM_ENCTYPE_NAME " option with method GET");
1.22 misha 776:
777: multipart=strcasecmp(encode, HTTP_CONTENT_TYPE_MULTIPART_FORMDATA)==0;
778:
779: if(!multipart && strcasecmp(encode, HTTP_CONTENT_TYPE_FORM_URLENCODED)!=0)
1.72 moko 780: throw Exception(PARSER_RUNTIME, 0, "$." HTTP_FORM_ENCTYPE_NAME " option value can be " HTTP_CONTENT_TYPE_FORM_URLENCODED " or " HTTP_CONTENT_TYPE_MULTIPART_FORMDATA " only");
1.22 misha 781: }
1.1 paf 782:
1.11 misha 783: if(vbody){
784: if(method_is_get)
1.127 moko 785: throw Exception(PARSER_RUNTIME, 0, "you cannot use $." HTTP_BODY_NAME " option with method GET");
1.11 misha 786:
787: if(form)
1.127 moko 788: throw Exception(PARSER_RUNTIME, 0, "you cannot use options $." HTTP_BODY_NAME " and $." HTTP_FORM_NAME " together");
1.11 misha 789: }
1.1 paf 790:
791: //preparing request
1.29 misha 792: String& connect_string=*new String(file_spec);
1.1 paf 793:
1.48 moko 794: const char* request;
795: size_t request_size;
1.1 paf 796: {
797: // influence URLencoding of tainted pieces to String::L_URI lang
1.22 misha 798: Temp_client_charset temp(r.charsets, *asked_remote_charset);
1.1 paf 799:
1.44 misha 800: const char* connect_string_cstr=connect_string.untaint_and_transcode_cstr(String::L_URI, &(r.charsets));
1.1 paf 801:
802: const char* current=connect_string_cstr;
803: if(strncmp(current, "http://", 7)!=0)
1.72 moko 804: throw Exception(PARSER_RUNTIME, &connect_string, "does not start with http://"); //never
1.1 paf 805: current+=7;
806:
1.119 moko 807: pa_strncpy(host, current, sizeof(host));
1.34 misha 808: char* host_uri=lsplit(host, '/');
809: uri=host_uri?current+(host_uri-1-host):"/";
810: char* port_cstr=lsplit(host, ':');
1.49 moko 811:
812: if (port_cstr){
813: char* error_pos=0;
814: port=(short)strtol(port_cstr, &error_pos, 10);
815: if(port==0 || *error_pos)
816: throw Exception(PARSER_RUNTIME, &connect_string, "invalid port number '%s'", port_cstr);
817: }
1.1 paf 818:
1.66 moko 819: idna_host=pa_idna_encode(host, r.charsets.source());
820:
1.11 misha 821: // making request head
1.1 paf 822: String head;
1.11 misha 823: head << method << " " << uri;
1.28 misha 824: if(method_is_get && form)
825: head << (strchr(uri, '?')!=0?"&":"?") << pa_form2string(*form, r.charsets);
1.11 misha 826:
1.66 moko 827: head <<" HTTP/1.0" CRLF "Host: "<< idna_host;
1.49 moko 828: if (port != 80)
829: head << ":" << port_cstr;
830: head << CRLF;
1.11 misha 831:
1.71 moko 832: char* boundary= multipart ? get_uuid_boundary() : 0;
1.22 misha 833:
1.35 misha 834: String user_headers;
835: bool user_agent_specified=false;
836: bool content_type_specified=false;
837: bool content_type_url_encoded=false;
838: if(vheaders && !vheaders->is_string()) { // allow empty
839: if(HashStringValue *headers=vheaders->get_hash()) {
840: Http_pass_header_info info={
841: &(r.charsets),
842: &user_headers,
843: &user_agent_specified,
844: &content_type_specified,
845: &content_type_url_encoded};
846: headers->for_each<Http_pass_header_info*>(http_pass_header, &info);
847: } else
1.72 moko 848: throw Exception(PARSER_RUNTIME, 0, "headers param must be hash");
1.35 misha 849: };
850:
1.48 moko 851: const char* request_body=0;
1.22 misha 852: size_t post_size=0;
853: if(form && !method_is_get) {
1.38 misha 854: head << "Content-Type: " << (multipart ? HTTP_CONTENT_TYPE_MULTIPART_FORMDATA : HTTP_CONTENT_TYPE_FORM_URLENCODED);
1.28 misha 855:
856: if(!omit_post_charset)
857: head << "; charset=" << asked_remote_charset->NAME_CSTR();
858:
1.22 misha 859: if(multipart) {
1.28 misha 860: head << "; boundary=" << boundary;
1.48 moko 861: request_body=pa_form2string_multipart(*form, r/*charsets & mime_type needed*/, boundary, post_size/*correct post_size returned here*/);
1.22 misha 862: } else {
1.48 moko 863: request_body=pa_form2string(*form, r.charsets);
864: post_size=strlen(request_body);
1.22 misha 865: }
1.28 misha 866: head << CRLF;
1.35 misha 867: } else if(vbody) {
1.38 misha 868: // $.body was specified
1.35 misha 869: if(content_type_url_encoded){
1.36 misha 870: // transcode + url-encode
1.48 moko 871: request_body=vbody->as_string().untaint_and_transcode_cstr(String::L_URI, &(r.charsets));
1.35 misha 872: } else {
1.36 misha 873: // content-type != application/x-www-form-urlencoded -> transcode only, don't url-encode!
1.72 moko 874: const String &sbody=vbody->as_string();
875: request_body=Charset::transcode(String::C(sbody.cstr(), sbody.length()), r.charsets.source(), *asked_remote_charset).str;
1.35 misha 876: }
1.48 moko 877: post_size=strlen(request_body);
1.1 paf 878: }
879:
880: // http://www.ietf.org/rfc/rfc2617.txt
881: if(const String* authorization_field_value=basic_authorization_field(user_cstr, password_cstr))
1.38 misha 882: head << "Authorization: " << *authorization_field_value << CRLF;
1.1 paf 883:
1.35 misha 884: head << user_headers;
885:
1.1 paf 886: if(!user_agent_specified) // defaulting
1.38 misha 887: head << "User-Agent: " DEFAULT_USER_AGENT CRLF;
1.1 paf 888:
1.12 misha 889: if(form && !method_is_get && content_type_specified) // POST + form + content-type was specified
1.72 moko 890: throw Exception(PARSER_RUNTIME, 0, "$.content-type can't be specified with method POST");
1.12 misha 891:
1.11 misha 892: if(vcookies && !vcookies->is_string()){ // allow empty
1.10 misha 893: if(HashStringValue* cookies=vcookies->get_hash()) {
1.37 misha 894: head << "Cookie: ";
1.35 misha 895: Http_pass_header_info info={&(r.charsets), &head, 0, 0, 0};
1.10 misha 896: cookies->for_each<Http_pass_header_info*>(http_pass_cookie, &info);
897: head << CRLF;
898: } else
1.72 moko 899: throw Exception(PARSER_RUNTIME, 0, "cookies param must be hash");
1.10 misha 900: }
901:
1.48 moko 902: if(request_body)
1.128 moko 903: head << "Content-Length: " << pa_uitoa(post_size) << CRLF;
1.48 moko 904:
905: head << CRLF;
906:
907: const char *request_head=head.untaint_and_transcode_cstr(String::L_URI, &(r.charsets));
1.1 paf 908:
1.48 moko 909: if(request_body){
910: size_t head_size = strlen(request_head);
911: request_size=post_size + head_size;
912: char *ptr=(char *)pa_malloc_atomic(request_size);
913: memcpy(ptr, request_head, head_size);
914: memcpy(ptr+head_size, request_body, post_size);
915: request=ptr;
916: } else {
917: request_size=strlen(request_head);
918: request=request_head;
919: }
1.1 paf 920: }
921:
1.78 moko 922:
1.97 moko 923: HTTP_response response;
1.22 misha 924:
1.28 misha 925: // sending request
1.95 moko 926: int status_code;
927: 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 928:
1.72 moko 929: // processing results
1.78 moko 930: char* raw_body=response.buf + response.body_offset;
931: size_t raw_body_size=response.length - response.body_offset;
932:
1.1 paf 933: result.headers=new HashStringValue;
934: VHash* vtables=new VHash;
1.133 moko 935: HASH_PUT_CSTR(*result.headers, "tables", vtables);
1.72 moko 936:
1.78 moko 937: if (!real_remote_charset && !response.headers.content_type.is_empty())
938: real_remote_charset=detect_charset(response.headers.content_type.cstr());
1.1 paf 939:
1.72 moko 940: if(as_text)
1.77 moko 941: real_remote_charset=pa_charsets.checkBOM(raw_body, raw_body_size, real_remote_charset);
1.72 moko 942:
943: if (!real_remote_charset)
944: real_remote_charset=asked_remote_charset; // never null
945:
1.125 moko 946: for(Array_iterator<HTTP_Headers::Header> i(response.headers.headers); i; ){
1.85 moko 947: HTTP_Headers::Header header=i.next();
1.72 moko 948:
949: header.transcode(*real_remote_charset, r.charsets.source());
950:
951: String &header_value=*new String(header.value, String::L_TAINTED);
952:
953: tables_update(vtables->hash(), header.name, header_value);
954: result.headers->put(header.name, new VString(header_value));
1.16 misha 955: }
956:
1.72 moko 957: // filling $.cookies
1.89 moko 958: if(vcookies=vtables->hash().get("SET-COOKIE"))
1.133 moko 959: HASH_PUT_CSTR(*result.headers, HTTP_COOKIES_NAME, new VTable(parse_cookies(r, vcookies->get_table())));
1.72 moko 960:
1.1 paf 961: // output response
962: String::C real_body=String::C(raw_body, raw_body_size);
1.16 misha 963:
964: 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 965: real_body=Charset::transcode(real_body, *real_remote_charset, r.charsets.source());
1.1 paf 966: }
967:
968: result.str=const_cast<char *>(real_body.str); // hacking a little
969: result.length=real_body.length;
1.16 misha 970:
1.22 misha 971: if(as_text && result.length)
972: fix_line_breaks(result.str, result.length);
973:
1.1 paf 974: result.headers->put(file_status_name, new VInt(status_code));
1.16 misha 975:
1.1 paf 976: return result;
977: }
1.84 moko 978:
979: /* ********************** httpd *************************** */
980:
1.100 moko 981: enum EscapeState {
982: Initial,
983: Default,
984: EscapeFirst,
985: EscapeSecond
986: };
987:
988: static bool check_uri(const char *uri){
989: EscapeState state=Initial;
1.120 moko 990: uint escapedValue=0;
1.100 moko 991:
992: const char *pattern="/../";
993: const char *pos=pattern;
994:
995: while(*uri){
996: uchar c=(uchar)*(uri++);
997: switch(state) {
998: case Initial:
999: if(c!='/')
1000: return false;
1001: state=Default;
1002: break;
1003: case Default:
1004: if(c=='%'){
1005: state=EscapeFirst;
1006: continue;
1007: }
1008: if(c=='?')
1009: return true;
1010: break;
1011: case EscapeFirst:
1012: if(isxdigit(c)){
1013: state=EscapeSecond;
1014: escapedValue=hex_value[c] << 4;
1015: continue;
1016: }
1017: return false;
1018: case EscapeSecond:
1019: if(isxdigit(c)){
1020: state=Default;
1.105 moko 1021: c=(uchar)(escapedValue + hex_value[c]);
1.100 moko 1022:
1023: // implementing Apache AllowEncodedSlashes Off just in case
1024: if(c=='/' || c=='\\')
1025: return false;
1026:
1027: break;
1028: }
1029: return false;
1030: }
1031:
1032: if(c==*pos || c=='\\' && *pos=='/'){
1033: if(!*(++pos))
1034: return false;
1035: } else {
1036: pos=pattern;
1037: }
1038: }
1039: return true;
1040: }
1041:
1.84 moko 1042: class HTTPD_request : public HTTP_response {
1043: public:
1044: const char *method;
1045: const char *uri;
1046:
1.97 moko 1047: HTTPD_request() : HTTP_response(), method(NULL), uri(NULL){};
1.84 moko 1048:
1.120 moko 1049: ssize_t pa_recv(SOCKET sockfd, char *buf, size_t len);
1.103 moko 1050:
1.120 moko 1051: bool read(SOCKET sock, size_t size){
1.103 moko 1052: if(length + size > buf_size)
1053: resize(buf_size * 2 + size);
1054: ssize_t received_size=pa_recv(sock, buf + length, size);
1055: if(received_size == 0)
1056: return false;
1057: if(received_size < 0) {
1058: if(int no = pa_socks_errno())
1.111 moko 1059: throw Exception("httpd.read", 0, "error receiving request: %s (%d)", pa_socks_strerr(no), no);
1.103 moko 1060: return false;
1061: }
1062: length+=received_size;
1063: buf[length]='\0';
1064: return true;
1065: }
1066:
1.84 moko 1067: const char *extract_method(char *method_line){
1068: char* uri_start = strchr(method_line, ' ');
1069:
1070: if(!uri_start || uri_start == method_line)
1071: return NULL;
1072:
1073: char* uri_end=strchr(uri_start+1, ' ');
1074:
1075: if(!uri_end || uri_end == uri_start+1)
1076: return NULL;
1077:
1078: uri=pa_strdup(uri_start+1, uri_end-uri_start-1);
1.100 moko 1079: if(!check_uri(uri))
1080: throw Exception("httpd.request", 0, "invalid uri '%s'", uri);
1081:
1.84 moko 1082: return str_upper(method_line, uri_start-method_line);
1083: }
1084:
1.103 moko 1085:
1.120 moko 1086: bool read_header(SOCKET);
1087: size_t read_post(SOCKET, char *, size_t);
1.84 moko 1088: };
1089:
1090: enum HTTPD_request_state {
1091: HTTPD_METHOD,
1092: HTTPD_HEADERS
1093: };
1094:
1.138 moko 1095: // timeout on "void" connection is normal
1096: #define PA_RECV_TIMEOUT \
1097: LOG(pa_log("httpd [%d] recv got %d sec timeout", sockfd, pa_httpd_timeout)); \
1098: if(length) \
1099: throw Exception("httpd.timeout", 0, "timeout occurred while receiving request"); \
1100: return 0;
1101:
1.120 moko 1102: ssize_t HTTPD_request::pa_recv(SOCKET sockfd, char *buffer, size_t len){
1.111 moko 1103: LOG(pa_log("httpd [%d] recv %d appending to %d ...", sockfd, len, length));
1.107 moko 1104:
1.138 moko 1105: #ifdef PA_HAVE_ALARM
1106: if(PA_USE_ALARM) signal(SIGALRM, timeout_handler);
1107: if(PA_USE_ALARM && sigsetjmp(timeout_env, 1)) {
1108: PA_RECV_TIMEOUT
1.103 moko 1109: } else
1.107 moko 1110: #endif
1.103 moko 1111: {
1.107 moko 1112: ALARM(pa_httpd_timeout);
1.141 ! moko 1113: ssize_t result=pa_sock_recv(sockfd, buffer, len);
1.107 moko 1114: ALARM(0);
1.138 moko 1115: if(result < 0 && sock_timed_out(pa_socks_errno())) {
1116: PA_RECV_TIMEOUT
1117: }
1.111 moko 1118: LOG(pa_log("httpd [%d] recv got %d bytes", sockfd, result));
1.112 moko 1119: LOG(pa_log("httpd [%d] %s", sockfd, buffer));
1.103 moko 1120: return result;
1121: }
1122: }
1123:
1.115 moko 1124: static bool valid_http_method(const char * method){
1125: return method && (
1126: !strcmp(method, "GET") ||
1127: !strcmp(method, "HEAD") ||
1128: !strcmp(method, "POST") ||
1129: !strcmp(method, "PUT") ||
1130: !strcmp(method, "DELETE") ||
1131: !strcmp(method, "CONNECT") ||
1132: !strcmp(method, "OPTIONS") ||
1133: !strcmp(method, "TRACE") ||
1134: !strcmp(method, "PATCH")
1135: );
1136: }
1137:
1.120 moko 1138: bool HTTPD_request::read_header(SOCKET sock) {
1.84 moko 1139: enum HTTPD_request_state state = HTTPD_METHOD;
1140:
1141: size_t chunk_size = 0x400*4;
1142: resize(chunk_size);
1143:
1144: while(read(sock, chunk_size)){
1145: switch(state){
1146: case HTTPD_METHOD: {
1147: size_t method_size = first_line();
1148: if(!method_size)
1149: break;
1150:
1151: char *method_line = pa_strdup(buf, method_size);
1152: method = extract_method(method_line);
1153:
1.115 moko 1154: if(!valid_http_method(method))
1.84 moko 1155: throw Exception("httpd.method", new String(method ? method : method_line), "invalid request method");
1156: state = HTTPD_HEADERS;
1157: }
1158:
1159: case HTTPD_HEADERS: {
1160: if(!body_start())
1161: break;
1162:
1163: parse_headers();
1.110 moko 1164: return true;
1.84 moko 1165: }
1166: }
1167: }
1168:
1.111 moko 1169: if(!length){ // browsers open connections in advance and they will be empty unless user requests more pages
1170: LOG(pa_log("httpd [%d] void request", sock));
1.110 moko 1171: return false;
1.111 moko 1172: }
1.110 moko 1173:
1.84 moko 1174: if(state == HTTPD_METHOD)
1175: throw Exception("httpd.request", 0, "bad request from host - no method found (size=%u)", length);
1176:
1177: if(state == HTTPD_HEADERS){
1178: parse_headers();
1179: body_offset=length;
1180: }
1.110 moko 1181:
1182: return true;
1.84 moko 1183: }
1184:
1.120 moko 1185: size_t HTTPD_request::read_post(SOCKET sock, char *body, size_t max_bytes) {
1.87 moko 1186: size_t total_read = min(length - body_offset, max_bytes);
1.98 moko 1187: memcpy(body, buf + body_offset, total_read);
1.87 moko 1188:
1189: while (total_read < max_bytes){
1.103 moko 1190: ssize_t received_size = pa_recv(sock, body + total_read, max_bytes - total_read);
1.87 moko 1191: if(received_size == 0)
1192: return total_read;
1193: if(received_size < 0) {
1194: if(int no = pa_socks_errno())
1.111 moko 1195: throw Exception("httpd.read", new String(uri), "error receiving request body: %s (%d)", pa_socks_strerr(no), no);
1.87 moko 1196: return total_read;
1197: }
1198: total_read += received_size;
1199: }
1200: return total_read;
1201: }
1202:
1.84 moko 1203: /* ********************************************************** */
1204:
1.85 moko 1205: Array<HTTP_Headers::Header> &HTTPD_Connection::headers() {
1.84 moko 1206: return request->headers.headers;
1207: }
1208:
1209: const char *HTTPD_Connection::method() {
1210: return request->method;
1211: }
1212:
1213: const char *HTTPD_Connection::uri() {
1214: return request->uri;
1215: }
1216:
1217: const char *HTTPD_Connection::content_type() {
1218: return request->headers.content_type.cstr();
1219: }
1220:
1221: uint64_t HTTPD_Connection::content_length(){
1222: return request->headers.content_length;
1223: }
1224:
1.110 moko 1225: bool HTTPD_Connection::read_header(){
1.84 moko 1226: request = new HTTPD_request();
1.111 moko 1227: bool result = request->read_header(sock);
1228: LOG(if(result){
1229: pa_log("httpd [%d] got %s \"%s\"", sock, method(), uri());
1230: })
1231: return result;
1.84 moko 1232: }
1233:
1.87 moko 1234: size_t HTTPD_Connection::read_post(char *body, size_t max_bytes) {
1235: return request->read_post(sock, body, max_bytes);
1236: }
1237:
1.90 moko 1238: size_t HTTPD_Connection::send_body(const void *buf, size_t size) {
1.112 moko 1239: LOG(pa_log("httpd [%d] response %d bytes", sock, size));
1240: LOG(pa_log("httpd [%d] %s", sock, buf));
1.131 moko 1241: ssize_t result=pa_send(sock, (const char*)buf, size);
1242: if(result < 0) {
1.90 moko 1243: int no=pa_socks_errno();
1.111 moko 1244: throw Exception("httpd.write", 0, "error sending response: %s (%d)", pa_socks_strerr(no), no);
1.90 moko 1245: }
1.131 moko 1246: return result;
1.90 moko 1247: }
1248:
1.140 moko 1249: String::C HTTPD_Connection::unprocessed() {
1250: return String::C(request->buf + request->body_offset, request->length - request->body_offset);
1251: }
1252:
1253: size_t HTTPD_Connection::receive(char *dest, size_t max_bytes) {
1.141 ! moko 1254: ssize_t received_size=pa_sock_recv(sock, dest, max_bytes);
1.140 moko 1255: if(received_size < 0) {
1256: int no=pa_socks_errno();
1257: if(pa_socks_is_reset(no))
1258: return 0;
1259: throw Exception("httpd.read", 0, "error receiving data: %s (%d)", pa_socks_strerr(no), no);
1260: }
1261: return received_size;
1262: }
1263:
1264: void HTTPD_Connection::set_nodelay() {
1265: int nodelay=1;
1266: setsockopt(sock, IPPROTO_TCP, TCP_NODELAY, (const char *)&nodelay, sizeof(nodelay));
1267: }
1268:
1269: void HTTPD_Connection::set_send_timeout(int timeout_secs) {
1270: set_socket_timeout(sock, SO_SNDTIMEO, timeout_secs);
1271: }
1272:
1.93 moko 1273: HTTPD_Connection::~HTTPD_Connection(){
1.120 moko 1274: if(sock != INVALID_SOCKET){
1.111 moko 1275: LOG(pa_log("httpd [%d] closed", sock));
1.93 moko 1276: closesocket(sock);
1.111 moko 1277: }
1.93 moko 1278: }
1279:
1.120 moko 1280: bool HTTPD_Connection::accept(SOCKET server_sock, int timeout_value) {
1.139 moko 1281: int ready = pa_sock_ready(server_sock, false, timeout_value);
1.93 moko 1282: if (ready < 0) {
1283: int no=pa_socks_errno();
1.141 ! moko 1284: if(pa_socks_is_interrupted(no))
1.93 moko 1285: return false;
1286: throw Exception("httpd.accept", 0, "error waiting for connection: %s (%d)", pa_socks_strerr(no), no);
1287: }
1288: if (ready == 0)
1289: return false; /* Timeout */
1290:
1291: struct sockaddr_in addr;
1292: socklen_t sock_addr_len = sizeof(struct sockaddr_in);
1293: memset(&addr, 0, sock_addr_len);
1294:
1295: sock = ::accept(server_sock, (struct sockaddr *)&addr, &sock_addr_len);
1.120 moko 1296: if(sock == INVALID_SOCKET){
1.93 moko 1297: int no=pa_socks_errno();
1298: throw Exception("httpd.accept", 0, "error accepting connection: %s (%d)", pa_socks_strerr(no), no);
1299: }
1300:
1.123 moko 1301: // Has no positive performance effect, requires include <netinet/tcp.h>
1302: // static int sock_on=1;
1303: // setsockopt(sock, IPPROTO_TCP, TCP_NODELAY, (char *)&sock_on, sizeof(sock_on));
1304:
1.138 moko 1305: if(!PA_USE_ALARM)
1306: set_socket_timeout(sock, SO_RCVTIMEO, pa_httpd_timeout);
1307:
1.93 moko 1308: remote_addr = pa_strdup(inet_ntoa(addr.sin_addr));
1.111 moko 1309: LOG(pa_log("httpd [%d] accepted from %s", sock, remote_addr));
1.93 moko 1310: return true;
1311: }
1.84 moko 1312:
1.107 moko 1313: HTTPD_Server::HTTPD_MODE HTTPD_Server::mode = HTTPD_Server::SEQUENTIAL;
1.114 moko 1314: const char *HTTPD_Server::port=NULL;
1.106 moko 1315:
1.108 moko 1316: void HTTPD_Server::set_mode(const String &value){
1317: if(value == "sequental") mode = SEQUENTIAL;
1.113 moko 1318: #ifdef HAVE_TLS
1.108 moko 1319: else if (value == "threaded") mode = MULTITHREADED;
1.113 moko 1320: #endif
1.108 moko 1321: #ifdef _MSC_VER
1.117 moko 1322: else throw Exception("httpd.mode", &value, "$MAIN:HTTPD.mode must be 'sequental' or 'threaded'");
1.108 moko 1323: #else
1324: else if (value == "parallel") mode = PARALLEL;
1.117 moko 1325: else throw Exception("httpd.mode", &value, "$MAIN:HTTPD.mode must be 'sequental', 'parallel' or 'threaded'");
1.108 moko 1326: #endif
1327: }
1328:
1.120 moko 1329: SOCKET HTTPD_Server::bind(const char *host_port){
1.84 moko 1330: struct sockaddr_in me;
1331:
1.114 moko 1332: port = strchr(host_port, ':');
1.86 moko 1333: const char *host = NULL;
1.116 moko 1334: if(port){
1.114 moko 1335: if(port > host_port)
1336: host = pa_strdup(host_port, port - host_port);
1.86 moko 1337: port += 1;
1338: } else {
1339: port = host_port;
1340: }
1341:
1.105 moko 1342: if(!set_addr(&me, host, (short)pa_atoui(port))){
1.84 moko 1343: if (host)
1.127 moko 1344: throw Exception("httpd.bind", 0, "cannot resolve hostname \"%s\"", host);
1.84 moko 1345: me.sin_addr.s_addr=INADDR_ANY;
1346: }
1347:
1.120 moko 1348: SOCKET sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP/*0*/);
1.84 moko 1349:
1.120 moko 1350: if(sock == INVALID_SOCKET){
1.84 moko 1351: int no=pa_socks_errno();
1.127 moko 1352: throw Exception("httpd.bind", 0, "cannot make socket: %s (%d)", pa_socks_strerr(no), no);
1.84 moko 1353: }
1354:
1.93 moko 1355: static int sock_on = 1;
1356:
1.84 moko 1357: if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (char *)&sock_on, sizeof(sock_on)) ||
1358: setsockopt(sock, SOL_SOCKET, SO_KEEPALIVE, (char *)&sock_on, sizeof(sock_on)) ||
1359: ::bind(sock, (struct sockaddr*)&me, sizeof(me)) ||
1360: listen(sock, 16)) {
1.89 moko 1361: closesocket(sock);
1.84 moko 1362: int no = pa_socks_errno();
1.127 moko 1363: throw Exception("httpd.bind", 0, "cannot bind socket: %s (%d)", pa_socks_strerr(no), no);
1.84 moko 1364: }
1365: return sock;
1366: }
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