Annotation of parser3/src/main/pa_http.C, revision 1.129
1.1 paf 1: /** @file
2: Parser: http support functions.
3:
1.129 ! moko 4: Copyright (c) 2001-2024 Art. Lebedev Studio (http://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:
1.129 ! moko 17: volatile const char * IDENT_PA_HTTP_C="$Id: pa_http.C,v 1.128 2024/10/02 22:54:03 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:
1.85 moko 45: bool HTTP_Headers::add_header(const char *line){
1.78 moko 46: const char *value=strchr(line, ':');
47:
48: if(value && value != line){ // we need only headers, not the response code
49: Header header(str_upper(line, value-line), String::Body(value+1).trim(String::TRIM_BOTH, " \t\n\r"));
50:
51: if(header.name == String::Body(HTTP_CONTENT_TYPE_UPPER) && content_type.is_empty())
52: content_type=header.value;
53:
54: if(header.name == String::Body("CONTENT-LENGTH") && content_length==0)
1.95 moko 55: ALTER_EXCEPTION_COMMENT(content_length=pa_atoul(header.value.cstr()), " for content-length");
1.78 moko 56:
57: headers+=header;
58:
59: return true;
60: }
61: return false;
62: }
63:
1.54 misha 64: class Cookies_table_template_columns: public ArrayString {
65: public:
66: Cookies_table_template_columns() {
67: *this+=new String("name");
68: *this+=new String("value");
69: *this+=new String("expires");
70: *this+=new String("max-age");
71: *this+=new String("domain");
72: *this+=new String("path");
73: *this+=new String("httponly");
74: *this+=new String("secure");
75: }
76: };
77:
78:
1.1 paf 79: static bool set_addr(struct sockaddr_in *addr, const char* host, const short port){
1.22 misha 80: memset(addr, 0, sizeof(*addr));
81: addr->sin_family=AF_INET;
82: addr->sin_port=htons(port);
83: if(host) {
1.65 moko 84: struct hostent *hostIP=gethostbyname(host);
85: if(hostIP && hostIP->h_addrtype == AF_INET){
86: memcpy(&addr->sin_addr, hostIP->h_addr, hostIP->h_length);
87: return true;
88: }
89: }
90: return false;
1.1 paf 91: }
92:
1.84 moko 93: class HTTP_response : public PA_Allocated {
1.78 moko 94: public:
95: char *buf;
96: size_t length;
97: size_t buf_size;
98: size_t body_offset;
99:
1.85 moko 100: HTTP_Headers headers;
1.78 moko 101:
1.97 moko 102: HTTP_response() : buf(NULL), length(0), buf_size(0), body_offset(0){}
1.78 moko 103:
104: void resize(size_t size){
105: buf_size=size;
106: buf=(char *)pa_realloc(buf, size + 1);
107: }
108:
1.120 moko 109: bool read(SOCKET sock, size_t size){
1.103 moko 110: if(length + size > buf_size)
111: resize(buf_size * 2 + size);
1.78 moko 112: ssize_t received_size=recv(sock, buf + length, size, 0);
1.103 moko 113: if(received_size == 0)
1.78 moko 114: return false;
1.103 moko 115: if(received_size < 0) {
116: if(int no = pa_socks_errno())
1.102 moko 117: throw Exception("http.timeout", 0, "error receiving response: %s (%d)", pa_socks_strerr(no), no);
1.78 moko 118: return false;
119: }
120: length+=received_size;
121: buf[length]='\0';
122: return true;
123: }
124:
1.83 moko 125: size_t first_line(){
1.89 moko 126: char *header=strchr(buf, '\n');
127: if(!header)
1.78 moko 128: return false;
129:
1.89 moko 130: return header-buf;
1.78 moko 131: }
132:
133: const char *status_code(char *status_line, int &result){
134: char* status_start = strchr(status_line, ' ');
135:
136: if(!(status_start++))
137: return status_line;
138:
139: char* status_end=strchr(status_start, ' ');
140:
141: if(!status_end)
142: return status_line;
143:
144: if(status_end==status_start)
145: return status_line;
1.1 paf 146:
1.78 moko 147: const char *result_str=pa_strdup(status_start, status_end-status_start);
1.95 moko 148: ALTER_EXCEPTION_COMMENT(result=pa_atoui(result_str), " for HTTP status");
1.78 moko 149: return result_str;
150: }
1.2 paf 151:
1.78 moko 152: bool body_start(){
153: char *p=buf;
154: while((p=strchr(p, '\n'))) {
155: if(p[1]=='\r' && p[2]=='\n'){ // \r\n\r\n
156: *p='\0';
157: body_offset=p-buf+3;
158: return true;
159: }
160: if(p[1]=='\n') { // \n\n
161: *p='\0';
162: body_offset=p-buf+2;
163: return true;
164: }
165: p++;
166: }
167: return false;
1.2 paf 168: }
1.78 moko 169:
170: void parse_headers(){
171: const String header_block(buf, String::L_TAINTED);
172:
173: ArrayString aheaders;
174: header_block.split(aheaders, 0, "\n");
175:
1.124 moko 176: ArrayString::Iterator i(aheaders);
1.78 moko 177: i.next(); // skipping status
1.125 moko 178: for(;i;){
1.78 moko 179: const char *line=i.next()->cstr();
180: if(!headers.add_header(line))
1.97 moko 181: throw Exception("http.response", 0, "bad response from host - bad header \"%s\"", line);
1.78 moko 182: }
1.1 paf 183: }
184:
1.120 moko 185: int read_response(SOCKET sock, bool fail_on_status_ne_200);
1.78 moko 186: };
187:
188: enum HTTP_response_state {
189: HTTP_STATUS_CODE,
190: HTTP_HEADERS,
191: HTTP_BODY
192: };
193:
1.120 moko 194: int HTTP_response::read_response(SOCKET sock, bool fail_on_status_ne_200) {
1.78 moko 195: HTTP_response_state state=HTTP_STATUS_CODE;
196: int result=0;
197:
198: size_t chunk_size=0x400*16;
1.88 moko 199: resize(2*chunk_size);
1.78 moko 200:
1.88 moko 201: while(read(sock, chunk_size)){
1.78 moko 202: switch(state){
203: case HTTP_STATUS_CODE: {
1.88 moko 204: size_t status_size=first_line();
1.78 moko 205: if(!status_size)
206: break;
207:
1.88 moko 208: const char *status=status_code(pa_strdup(buf, status_size), result);
1.78 moko 209:
210: if(!result || fail_on_status_ne_200 && result!=200)
211: throw Exception("http.status", status ? new String(status) : &String::Empty, "invalid HTTP response status");
212:
213: state=HTTP_HEADERS;
214: }
215:
216: case HTTP_HEADERS: {
1.88 moko 217: if(!body_start())
1.78 moko 218: break;
219:
1.88 moko 220: parse_headers();
1.78 moko 221:
1.97 moko 222: size_t content_length=check_file_size(headers.content_length, 0);
1.88 moko 223: if(content_length>0 && (content_length + body_offset) > length){
224: resize(content_length + body_offset + 0x400*64);
1.78 moko 225: }
226:
227: state=HTTP_BODY;
1.1 paf 228: break;
229: }
1.78 moko 230:
231: case HTTP_BODY: {
232: chunk_size=0x400*64;
1.1 paf 233: break;
234: }
235: }
236: }
1.78 moko 237:
238: if(state==HTTP_STATUS_CODE)
1.97 moko 239: throw Exception("http.response", 0, "bad response from host - no status found (size=%u)", length);
1.78 moko 240:
241: if(state==HTTP_HEADERS){
1.88 moko 242: parse_headers();
243: body_offset=length;
1.1 paf 244: }
1.78 moko 245:
246: return result;
1.1 paf 247: }
248:
249: /* ********************** request *************************** */
250:
251: #if defined(SIGALRM) && defined(HAVE_SIGSETJMP) && defined(HAVE_SIGLONGJMP)
252: # define PA_USE_ALARM
253: #endif
254:
255: #ifdef PA_USE_ALARM
256: static sigjmp_buf timeout_env;
257: static void timeout_handler(int /*sig*/){
1.101 moko 258: siglongjmp(timeout_env, 1);
1.1 paf 259: }
1.118 moko 260:
261: #define PA_NO_THREADS (HTTPD_Server::mode != HTTPD_Server::MULTITHREADED)
262:
263: #define ALARM(value) if(PA_NO_THREADS) alarm(value)
1.101 moko 264: #else
265: #define ALARM(value)
1.1 paf 266: #endif
267:
1.78 moko 268: 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 269: if(!host)
1.73 moko 270: throw Exception("http.host", 0, "zero hostname"); //never
1.1 paf 271:
1.120 moko 272: volatile SOCKET sock=INVALID_SOCKET; // to prevent makeing it register variable, because it will be clobbered by longjmp [thanks gcc warning]
1.101 moko 273:
1.1 paf 274: #ifdef PA_USE_ALARM
1.118 moko 275: if(PA_NO_THREADS) signal(SIGALRM, timeout_handler);
276: if(PA_NO_THREADS && sigsetjmp(timeout_env, 1)) {
1.101 moko 277: // duplicating closesocket to make code more simple for old compilers
1.120 moko 278: if(sock != INVALID_SOCKET)
1.101 moko 279: closesocket(sock);
280: throw Exception("http.timeout", 0, "timeout occurred while retrieving document");
1.1 paf 281: return 0; // never
1.101 moko 282: } else
1.1 paf 283: #endif
1.101 moko 284: {
285: ALARM(timeout_secs);
1.1 paf 286: try {
287: int result;
288: struct sockaddr_in dest;
289:
290: if(!set_addr(&dest, host, port))
1.127 moko 291: throw Exception("http.host", 0, "cannot resolve hostname \"%s\"", host);
1.1 paf 292:
1.120 moko 293: if((sock=socket(AF_INET, SOCK_STREAM, IPPROTO_TCP/*0*/)) == INVALID_SOCKET) {
1.1 paf 294: int no=pa_socks_errno();
1.127 moko 295: throw Exception("http.connect", 0, "cannot make socket: %s (%d)", pa_socks_strerr(no), no);
1.1 paf 296: }
297:
298: // To enable SO_DONTLINGER (that is, disable SO_LINGER)
299: // l_onoff should be set to zero and setsockopt should be called
300: linger dont_linger={0,0};
301: setsockopt(sock, SOL_SOCKET, SO_LINGER, (const char *)&dont_linger, sizeof(dont_linger));
302:
303: #ifdef WIN32
304: // SO_*TIMEO can be defined in .h but not implemlemented in protocol,
305: // failing subsequently with Option not supported by protocol (99) message
306: // could not suppress that, so leaving this only for win32
307: int timeout_ms=timeout_secs*1000;
308: setsockopt(sock, SOL_SOCKET, SO_SNDTIMEO, (const char*)&timeout_ms, sizeof(timeout_ms));
309: setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, (const char*)&timeout_ms, sizeof(timeout_ms));
310: #endif
311:
312: if(connect(sock, (struct sockaddr *)&dest, sizeof(dest))) {
313: int no=pa_socks_errno();
1.127 moko 314: throw Exception("http.connect", 0, "cannot connect to host \"%s\": %s (%d)", host, pa_socks_strerr(no), no);
1.1 paf 315: }
1.22 misha 316:
1.1 paf 317: if(send(sock, request, request_size, 0)!=(ssize_t)request_size) {
318: int no=pa_socks_errno();
1.78 moko 319: throw Exception("http.timeout", 0, "error sending request: %s (%d)", pa_socks_strerr(no), no);
1.1 paf 320: }
321:
1.88 moko 322: result=response.read_response(sock, fail_on_status_ne_200);
1.78 moko 323: closesocket(sock);
1.101 moko 324: ALARM(0);
1.1 paf 325: return result;
326: } catch(...) {
1.101 moko 327: ALARM(0);
1.120 moko 328: if(sock != INVALID_SOCKET)
1.78 moko 329: closesocket(sock);
1.1 paf 330: rethrow;
331: }
332: }
333: }
334:
335: #ifndef DOXYGEN
336: struct Http_pass_header_info {
337: Request_charsets* charsets;
338: String* request;
1.35 misha 339: bool* user_agent_specified;
340: bool* content_type_specified;
341: bool* content_type_url_encoded;
1.1 paf 342: };
343: #endif
1.50 moko 344:
345: char *pa_http_safe_header_name(const char *name) {
346: char *result=pa_strdup(name);
347: char *n=result;
1.52 misha 348: if(!pa_isalpha((unsigned char)*n))
1.50 moko 349: *n++ = '_';
350: for(; *n; ++n) {
1.52 misha 351: if (!pa_isalnum((unsigned char)*n) && *n != '-' && *n != '_')
1.50 moko 352: *n = '_';
353: }
354: return result;
355: }
356:
1.101 moko 357: static void http_pass_header(HashStringValue::key_type aname, HashStringValue::value_type avalue, Http_pass_header_info *info) {
1.9 misha 358:
1.41 misha 359: const char* name_cstr=aname.cstr();
360:
1.38 misha 361: if(strcasecmp(name_cstr, HTTP_CONTENT_LENGTH)==0)
362: return;
363:
1.50 moko 364: String name=String(pa_http_safe_header_name(capitalize(name_cstr)), String::L_AS_IS);
365: String value=attributed_meaning_to_string(*avalue, String::L_HTTP_HEADER, true);
1.9 misha 366:
1.35 misha 367: *info->request << name << ": " << value << CRLF;
1.1 paf 368:
1.38 misha 369: if(strcasecmp(name_cstr, HTTP_USER_AGENT)==0)
1.35 misha 370: *info->user_agent_specified=true;
1.38 misha 371: if(strcasecmp(name_cstr, HTTP_CONTENT_TYPE)==0){
1.35 misha 372: *info->content_type_specified=true;
1.62 moko 373: *info->content_type_url_encoded=pa_strncasecmp(value.cstr(), HTTP_CONTENT_TYPE_FORM_URLENCODED)==0;
1.35 misha 374: }
1.1 paf 375: }
376:
1.10 misha 377: static void http_pass_cookie(HashStringValue::key_type name,
1.20 misha 378: HashStringValue::value_type value,
379: Http_pass_header_info *info) {
1.10 misha 380:
1.17 misha 381: *info->request << String(name, String::L_HTTP_COOKIE) << "="
1.31 misha 382: << attributed_meaning_to_string(*value, String::L_HTTP_COOKIE, true)
1.10 misha 383: << "; ";
384:
385: }
1.1 paf 386:
387: static const String* basic_authorization_field(const char* user, const char* pass) {
388: if(!user&& !pass)
389: return 0;
390:
391: String combined;
392: if(user)
393: combined<<user;
394: combined<<":";
395: if(pass)
396: combined<<pass;
397:
1.20 misha 398: String* result=new String("Basic ");
1.82 moko 399: *result<<pa_base64_encode(combined.cstr(), combined.length(), Base64Options(false /*no wrap*/));
1.1 paf 400: return result;
401: }
402:
1.73 moko 403: static void form_string_value2string(HashStringValue::key_type key, const String& value, String& result) {
1.30 misha 404: result << String(key, String::L_URI) << "=" << String(value, String::L_URI) << "&";
1.1 paf 405: }
1.20 misha 406:
1.1 paf 407: #ifndef DOXYGEN
408: struct Form_table_value2string_info {
409: HashStringValue::key_type key;
410: String& result;
411:
412: Form_table_value2string_info(HashStringValue::key_type akey, String& aresult):
413: key(akey), result(aresult) {}
414: };
415: #endif
416: static void form_table_value2string(Table::element_type row, Form_table_value2string_info* info) {
417: form_string_value2string(info->key, *row->get(0), info->result);
418: }
1.73 moko 419:
420: static void form_value2string(HashStringValue::key_type key, HashStringValue::value_type value, String* result) {
1.1 paf 421: if(const String* svalue=value->get_string())
422: form_string_value2string(key, *svalue, *result);
423: else if(Table* tvalue=value->get_table()) {
424: Form_table_value2string_info info(key, *result);
425: tvalue->for_each(form_table_value2string, &info);
426: } else
1.73 moko 427: throw Exception(PARSER_RUNTIME, new String(key, String::L_TAINTED),
1.63 moko 428: "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 429: }
1.20 misha 430:
1.5 misha 431: const char* pa_form2string(HashStringValue& form, Request_charsets& charsets) {
1.1 paf 432: String string;
1.3 paf 433: form.for_each<String*>(form_value2string, &string);
1.44 misha 434: return string.untaint_and_transcode_cstr(String::L_URI, &charsets);
1.1 paf 435: }
1.22 misha 436:
437: struct FormPart {
438: Request* r;
439: const char* boundary;
1.48 moko 440: String* string;
1.22 misha 441: Form_table_value2string_info* info;
1.48 moko 442:
443: struct BinaryBlock{
444: const char* ptr;
445: size_t length;
446:
447: BinaryBlock(String* astring, Request* r): ptr(astring->untaint_and_transcode_cstr(String::L_AS_IS, &r->charsets)), length(strlen(ptr)){}
448: BinaryBlock(const char* aptr, size_t alength): ptr(aptr), length(alength){}
449: };
450:
451: Array<BinaryBlock> blocks;
452:
453: FormPart(Request* ar, const char* aboundary): r(ar), boundary(aboundary), string(new String()){}
454:
455: const char *post(size_t &length){
456: if(blocks.count()){
457: blocks+=BinaryBlock(string, r);
458:
459: length=0;
460: for(size_t i=0; i<blocks.count(); i++)
461: length+=blocks[i].length;
462:
463: char *result=(char *)pa_malloc_atomic(length);
464: char *ptr=result;
465:
466: for(size_t i=0; i<blocks.count(); i++){
467: memcpy(ptr, blocks[i].ptr, blocks[i].length);
468: ptr+=blocks[i].length;
469: }
470:
471: return result;
472: } else {
473: BinaryBlock result(string, r);
474: length=result.length;
475: return result.ptr;
476: }
477: }
1.22 misha 478: };
479:
1.73 moko 480: static void form_part_boundary_header(FormPart& part, String::Body name, const char* file_name=0) {
481: *part.string << "--" << part.boundary << CRLF CONTENT_DISPOSITION_CAPITALIZED ": form-data; name=\"" << name << "\"";
1.22 misha 482: if(file_name){
483: if(strcmp(file_name, NONAME_DAT)!=0)
1.48 moko 484: *part.string << "; filename=\"" << file_name << "\"";
485: *part.string << CRLF HTTP_CONTENT_TYPE_CAPITALIZED ": " << part.r->mime_type_of(file_name);
1.22 misha 486: }
1.48 moko 487: *part.string << CRLF CRLF;
1.22 misha 488: }
489:
1.73 moko 490: static void form_string_value2part(HashStringValue::key_type key, const String& value, FormPart& part) {
1.28 misha 491: form_part_boundary_header(part, key);
1.48 moko 492: *part.string << value << CRLF;
1.22 misha 493: }
494:
1.73 moko 495: static void form_file_value2part(HashStringValue::key_type key, VFile& vfile, FormPart& part) {
1.28 misha 496: form_part_boundary_header(part, key, vfile.fields().get(name_name)->as_string().cstr());
1.48 moko 497: part.blocks+=FormPart::BinaryBlock(part.string, part.r);
498: part.blocks+=FormPart::BinaryBlock(vfile.value_ptr(), vfile.value_size());
499: part.string=new String();
500: *part.string << CRLF;
1.22 misha 501: }
502:
503: static void form_table_value2part(Table::element_type row, FormPart* part) {
504: form_string_value2part(part->info->key, *row->get(0), *part);
505: }
506:
1.73 moko 507: static void form_value2part(HashStringValue::key_type key, HashStringValue::value_type value, FormPart& part) {
1.22 misha 508: if(const String* svalue=value->get_string())
509: form_string_value2part(key, *svalue, part);
510: else if(Table* tvalue=value->get_table()) {
1.48 moko 511: Form_table_value2string_info info(key, *part.string);
1.22 misha 512: part.info = &info;
513: tvalue->for_each(form_table_value2part, &part);
1.126 moko 514: } else if(VFile* vfile=dynamic_cast<VFile *>(value)){
1.22 misha 515: form_file_value2part(key, *vfile, part);
516: } else
1.73 moko 517: throw Exception(PARSER_RUNTIME, new String(key, String::L_TAINTED), "is %s, " HTTP_FORM_NAME " option value can be string, table or file only", value->type());
1.22 misha 518: }
519:
520: const char* pa_form2string_multipart(HashStringValue& form, Request& r, const char* boundary, size_t& post_size){
1.48 moko 521: FormPart formpart(&r, boundary);
1.22 misha 522: form.for_each<FormPart&>(form_value2part, formpart);
1.48 moko 523: *formpart.string << "--" << boundary << "--";
524: // @todo: return binary blocks here to save memory in pa_internal_file_read_http
525: return formpart.post(post_size);
1.22 misha 526: }
527:
1.54 misha 528: // Set-Cookie: name=value; Domain=docs.foo.com; Path=/accounts; Expires=Wed, 13-Jan-2021 22:23:01 GMT; Secure; HttpOnly
529: static ArrayString* parse_cookie(Request& r, const String& cookie) {
1.64 moko 530: char *current=pa_strdup(cookie.cstr());
1.54 misha 531:
532: const String* name=0;
1.55 moko 533: const String* value=&String::Empty;
534: const String* expires=&String::Empty;
535: const String* max_age=&String::Empty;
536: const String* path=&String::Empty;
537: const String* domain=&String::Empty;
538: const String* httponly=&String::Empty;
539: const String* secure=&String::Empty;
1.54 misha 540:
541: bool first_pair=true;
542:
543: do {
544: if(char *meaning=search_stop(current, ';'))
545: if(char *attribute=search_stop(meaning, '=')) {
546: const String* sname=new String(unescape_chars(attribute, strlen(attribute), &r.charsets.source(), true/*don't convert '"' to space*/), String::L_TAINTED);
547: const String* smeaning=0;
548: if(meaning)
549: smeaning=new String(unescape_chars(meaning, strlen(meaning), &r.charsets.source(), true/*don't convert '"' to space*/), String::L_TAINTED);
550:
551: if(first_pair) {
552: // name + value
553: name=sname;
1.122 moko 554: if(smeaning)
555: value=smeaning;
1.54 misha 556: first_pair=false;
557: } else {
558: const String& slower=sname->change_case(r.charsets.source(), String::CC_LOWER);
559:
560: if(slower == "expires")
561: expires=smeaning;
562: else if(slower == "max-age")
563: max_age=smeaning;
564: else if(slower == "domain")
565: domain=smeaning;
566: else if(slower == "path")
567: path=smeaning;
568: else if(slower == "httponly")
569: httponly=new String("1", String::L_CLEAN);
570: else if(slower == "secure")
571: secure=new String("1", String::L_CLEAN);
572: else {
573: // todo@ ?
574: }
575: }
576: }
577: } while(current);
578:
579: if(!name)
580: return 0;
581:
582: ArrayString* result=new ArrayString(8);
583: *result+=name;
584: *result+=value;
585: *result+=expires;
586: *result+=max_age;
587: *result+=domain;
588: *result+=path;
589: *result+=httponly;
590: *result+=secure;
591:
592: return result;
593: }
594:
1.56 misha 595: Table* parse_cookies(Request& r, Table *cookies){
596: Table& result=*new Table(new Cookies_table_template_columns);
597:
1.125 moko 598: for(Array_iterator<Table::element_type> i(*cookies); i; )
1.56 misha 599: if(ArrayString* row=parse_cookie(r, *i.next()->get(0)))
600: result+=row;
601:
602: return &result;
603: }
604:
1.75 moko 605: void tables_update(HashStringValue& tables, const String::Body name, const String& value){
1.72 moko 606: Table *table;
607: if(Value *valready=tables.get(name)) {
608: // second+ appearence
609: table=valready->get_table();
610: } else {
611: // first appearence
612: Table::columns_type columns=new ArrayString(1);
613: *columns+=new String("value");
614: table=new Table(columns);
615: tables.put(name, new VTable(table));
616: }
617: // this string becomes next row
618: ArrayString& row=*new ArrayString(1);
619: row+=&value;
620: *table+=&row;
621: }
622:
1.1 paf 623: /// @todo build .cookies field. use ^file.tables.SET-COOKIES.menu{ for now
1.72 moko 624: 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 625: File_read_http_result result;
1.20 misha 626: char host[MAX_STRING];
1.66 moko 627: const char *idna_host;
1.1 paf 628: const char* uri;
1.49 moko 629: short port=80;
1.10 misha 630: const char* method="GET";
1.21 misha 631: bool method_is_get=true;
1.1 paf 632: HashStringValue* form=0;
633: int timeout_secs=2;
634: bool fail_on_status_ne_200=true;
1.12 misha 635: bool omit_post_charset=false;
1.1 paf 636: Value* vheaders=0;
1.10 misha 637: Value* vcookies=0;
1.11 misha 638: Value* vbody=0;
1.72 moko 639: Charset* asked_remote_charset=0;
1.58 moko 640: Charset* real_remote_charset=0;
1.1 paf 641: const char* user_cstr=0;
642: const char* password_cstr=0;
1.22 misha 643: const char* encode=0;
644: bool multipart=false;
1.1 paf 645:
646: if(options) {
647: int valid_options=pa_get_valid_file_options_count(*options);
648:
649: if(Value* vmethod=options->get(HTTP_METHOD_NAME)) {
650: valid_options++;
1.21 misha 651: method=vmethod->as_string().change_case(r.charsets.source(), String::CC_UPPER).cstr();
652: method_is_get=strcmp(method, "GET")==0;
1.1 paf 653: }
1.22 misha 654: if(Value* vencode=options->get(HTTP_FORM_ENCTYPE_NAME)) {
655: valid_options++;
656: encode=vencode->as_string().cstr();
657: }
1.1 paf 658: if(Value* vform=options->get(HTTP_FORM_NAME)) {
659: valid_options++;
660: form=vform->get_hash();
661: }
1.11 misha 662: if(vbody=options->get(HTTP_BODY_NAME)) {
1.1 paf 663: valid_options++;
664: }
665: if(Value* vtimeout=options->get(HTTP_TIMEOUT_NAME)) {
666: valid_options++;
667: timeout_secs=vtimeout->as_int();
668: }
1.11 misha 669: if(vheaders=options->get(HTTP_HEADERS_NAME)) {
1.1 paf 670: valid_options++;
671: }
1.11 misha 672: if(vcookies=options->get(HTTP_COOKIES_NAME)) {
1.10 misha 673: valid_options++;
674: }
1.1 paf 675: if(Value* vany_status=options->get(HTTP_ANY_STATUS_NAME)) {
676: valid_options++;
677: fail_on_status_ne_200=!vany_status->as_bool();
1.12 misha 678: }
1.20 misha 679: if(Value* vomit_post_charset=options->get(HTTP_OMIT_POST_CHARSET_NAME)){
1.12 misha 680: valid_options++;
681: omit_post_charset=vomit_post_charset->as_bool();
682: }
1.6 misha 683: if(Value* vcharset_name=options->get(PA_CHARSET_NAME)) {
1.77 moko 684: asked_remote_charset=&pa_charsets.get(vcharset_name->as_string());
1.58 moko 685: }
686: if(Value* vresponse_charset_name=options->get(PA_RESPONSE_CHARSET_NAME)) {
1.61 moko 687: valid_options++;
1.77 moko 688: real_remote_charset=&pa_charsets.get(vresponse_charset_name->as_string());
1.1 paf 689: }
690: if(Value* vuser=options->get(HTTP_USER)) {
691: valid_options++;
692: user_cstr=vuser->as_string().cstr();
693: }
694: if(Value* vpassword=options->get(HTTP_PASSWORD)) {
695: valid_options++;
696: password_cstr=vpassword->as_string().cstr();
697: }
698:
699: if(valid_options!=options->count())
1.46 misha 700: throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
1.1 paf 701: }
702: if(!asked_remote_charset) // defaulting to $request:charset
1.22 misha 703: asked_remote_charset=&(r.charsets).source();
704:
705: if(encode){
706: if(method_is_get)
1.127 moko 707: throw Exception(PARSER_RUNTIME, 0, "you cannot use $." HTTP_FORM_ENCTYPE_NAME " option with method GET");
1.22 misha 708:
709: multipart=strcasecmp(encode, HTTP_CONTENT_TYPE_MULTIPART_FORMDATA)==0;
710:
711: if(!multipart && strcasecmp(encode, HTTP_CONTENT_TYPE_FORM_URLENCODED)!=0)
1.72 moko 712: throw Exception(PARSER_RUNTIME, 0, "$." HTTP_FORM_ENCTYPE_NAME " option value can be " HTTP_CONTENT_TYPE_FORM_URLENCODED " or " HTTP_CONTENT_TYPE_MULTIPART_FORMDATA " only");
1.22 misha 713: }
1.1 paf 714:
1.11 misha 715: if(vbody){
716: if(method_is_get)
1.127 moko 717: throw Exception(PARSER_RUNTIME, 0, "you cannot use $." HTTP_BODY_NAME " option with method GET");
1.11 misha 718:
719: if(form)
1.127 moko 720: throw Exception(PARSER_RUNTIME, 0, "you cannot use options $." HTTP_BODY_NAME " and $." HTTP_FORM_NAME " together");
1.11 misha 721: }
1.1 paf 722:
723: //preparing request
1.29 misha 724: String& connect_string=*new String(file_spec);
1.1 paf 725:
1.48 moko 726: const char* request;
727: size_t request_size;
1.1 paf 728: {
729: // influence URLencoding of tainted pieces to String::L_URI lang
1.22 misha 730: Temp_client_charset temp(r.charsets, *asked_remote_charset);
1.1 paf 731:
1.44 misha 732: const char* connect_string_cstr=connect_string.untaint_and_transcode_cstr(String::L_URI, &(r.charsets));
1.1 paf 733:
734: const char* current=connect_string_cstr;
735: if(strncmp(current, "http://", 7)!=0)
1.72 moko 736: throw Exception(PARSER_RUNTIME, &connect_string, "does not start with http://"); //never
1.1 paf 737: current+=7;
738:
1.119 moko 739: pa_strncpy(host, current, sizeof(host));
1.34 misha 740: char* host_uri=lsplit(host, '/');
741: uri=host_uri?current+(host_uri-1-host):"/";
742: char* port_cstr=lsplit(host, ':');
1.49 moko 743:
744: if (port_cstr){
745: char* error_pos=0;
746: port=(short)strtol(port_cstr, &error_pos, 10);
747: if(port==0 || *error_pos)
748: throw Exception(PARSER_RUNTIME, &connect_string, "invalid port number '%s'", port_cstr);
749: }
1.1 paf 750:
1.66 moko 751: idna_host=pa_idna_encode(host, r.charsets.source());
752:
1.11 misha 753: // making request head
1.1 paf 754: String head;
1.11 misha 755: head << method << " " << uri;
1.28 misha 756: if(method_is_get && form)
757: head << (strchr(uri, '?')!=0?"&":"?") << pa_form2string(*form, r.charsets);
1.11 misha 758:
1.66 moko 759: head <<" HTTP/1.0" CRLF "Host: "<< idna_host;
1.49 moko 760: if (port != 80)
761: head << ":" << port_cstr;
762: head << CRLF;
1.11 misha 763:
1.71 moko 764: char* boundary= multipart ? get_uuid_boundary() : 0;
1.22 misha 765:
1.35 misha 766: String user_headers;
767: bool user_agent_specified=false;
768: bool content_type_specified=false;
769: bool content_type_url_encoded=false;
770: if(vheaders && !vheaders->is_string()) { // allow empty
771: if(HashStringValue *headers=vheaders->get_hash()) {
772: Http_pass_header_info info={
773: &(r.charsets),
774: &user_headers,
775: &user_agent_specified,
776: &content_type_specified,
777: &content_type_url_encoded};
778: headers->for_each<Http_pass_header_info*>(http_pass_header, &info);
779: } else
1.72 moko 780: throw Exception(PARSER_RUNTIME, 0, "headers param must be hash");
1.35 misha 781: };
782:
1.48 moko 783: const char* request_body=0;
1.22 misha 784: size_t post_size=0;
785: if(form && !method_is_get) {
1.38 misha 786: head << "Content-Type: " << (multipart ? HTTP_CONTENT_TYPE_MULTIPART_FORMDATA : HTTP_CONTENT_TYPE_FORM_URLENCODED);
1.28 misha 787:
788: if(!omit_post_charset)
789: head << "; charset=" << asked_remote_charset->NAME_CSTR();
790:
1.22 misha 791: if(multipart) {
1.28 misha 792: head << "; boundary=" << boundary;
1.48 moko 793: request_body=pa_form2string_multipart(*form, r/*charsets & mime_type needed*/, boundary, post_size/*correct post_size returned here*/);
1.22 misha 794: } else {
1.48 moko 795: request_body=pa_form2string(*form, r.charsets);
796: post_size=strlen(request_body);
1.22 misha 797: }
1.28 misha 798: head << CRLF;
1.35 misha 799: } else if(vbody) {
1.38 misha 800: // $.body was specified
1.35 misha 801: if(content_type_url_encoded){
1.36 misha 802: // transcode + url-encode
1.48 moko 803: request_body=vbody->as_string().untaint_and_transcode_cstr(String::L_URI, &(r.charsets));
1.35 misha 804: } else {
1.36 misha 805: // content-type != application/x-www-form-urlencoded -> transcode only, don't url-encode!
1.72 moko 806: const String &sbody=vbody->as_string();
807: request_body=Charset::transcode(String::C(sbody.cstr(), sbody.length()), r.charsets.source(), *asked_remote_charset).str;
1.35 misha 808: }
1.48 moko 809: post_size=strlen(request_body);
1.1 paf 810: }
811:
812: // http://www.ietf.org/rfc/rfc2617.txt
813: if(const String* authorization_field_value=basic_authorization_field(user_cstr, password_cstr))
1.38 misha 814: head << "Authorization: " << *authorization_field_value << CRLF;
1.1 paf 815:
1.35 misha 816: head << user_headers;
817:
1.1 paf 818: if(!user_agent_specified) // defaulting
1.38 misha 819: head << "User-Agent: " DEFAULT_USER_AGENT CRLF;
1.1 paf 820:
1.12 misha 821: if(form && !method_is_get && content_type_specified) // POST + form + content-type was specified
1.72 moko 822: throw Exception(PARSER_RUNTIME, 0, "$.content-type can't be specified with method POST");
1.12 misha 823:
1.11 misha 824: if(vcookies && !vcookies->is_string()){ // allow empty
1.10 misha 825: if(HashStringValue* cookies=vcookies->get_hash()) {
1.37 misha 826: head << "Cookie: ";
1.35 misha 827: Http_pass_header_info info={&(r.charsets), &head, 0, 0, 0};
1.10 misha 828: cookies->for_each<Http_pass_header_info*>(http_pass_cookie, &info);
829: head << CRLF;
830: } else
1.72 moko 831: throw Exception(PARSER_RUNTIME, 0, "cookies param must be hash");
1.10 misha 832: }
833:
1.48 moko 834: if(request_body)
1.128 moko 835: head << "Content-Length: " << pa_uitoa(post_size) << CRLF;
1.48 moko 836:
837: head << CRLF;
838:
839: const char *request_head=head.untaint_and_transcode_cstr(String::L_URI, &(r.charsets));
1.1 paf 840:
1.48 moko 841: if(request_body){
842: size_t head_size = strlen(request_head);
843: request_size=post_size + head_size;
844: char *ptr=(char *)pa_malloc_atomic(request_size);
845: memcpy(ptr, request_head, head_size);
846: memcpy(ptr+head_size, request_body, post_size);
847: request=ptr;
848: } else {
849: request_size=strlen(request_head);
850: request=request_head;
851: }
1.1 paf 852: }
853:
1.78 moko 854:
1.97 moko 855: HTTP_response response;
1.22 misha 856:
1.28 misha 857: // sending request
1.95 moko 858: int status_code;
859: 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 860:
1.72 moko 861: // processing results
1.78 moko 862: char* raw_body=response.buf + response.body_offset;
863: size_t raw_body_size=response.length - response.body_offset;
864:
1.1 paf 865: result.headers=new HashStringValue;
866: VHash* vtables=new VHash;
1.72 moko 867: result.headers->put("tables", vtables);
868:
1.78 moko 869: if (!real_remote_charset && !response.headers.content_type.is_empty())
870: real_remote_charset=detect_charset(response.headers.content_type.cstr());
1.1 paf 871:
1.72 moko 872: if(as_text)
1.77 moko 873: real_remote_charset=pa_charsets.checkBOM(raw_body, raw_body_size, real_remote_charset);
1.72 moko 874:
875: if (!real_remote_charset)
876: real_remote_charset=asked_remote_charset; // never null
877:
1.125 moko 878: for(Array_iterator<HTTP_Headers::Header> i(response.headers.headers); i; ){
1.85 moko 879: HTTP_Headers::Header header=i.next();
1.72 moko 880:
881: header.transcode(*real_remote_charset, r.charsets.source());
882:
883: String &header_value=*new String(header.value, String::L_TAINTED);
884:
885: tables_update(vtables->hash(), header.name, header_value);
886: result.headers->put(header.name, new VString(header_value));
1.16 misha 887: }
888:
1.72 moko 889: // filling $.cookies
1.89 moko 890: if(vcookies=vtables->hash().get("SET-COOKIE"))
1.72 moko 891: result.headers->put(HTTP_COOKIES_NAME, new VTable(parse_cookies(r, vcookies->get_table())));
892:
1.1 paf 893: // output response
894: String::C real_body=String::C(raw_body, raw_body_size);
1.16 misha 895:
896: 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 897: real_body=Charset::transcode(real_body, *real_remote_charset, r.charsets.source());
1.1 paf 898: }
899:
900: result.str=const_cast<char *>(real_body.str); // hacking a little
901: result.length=real_body.length;
1.16 misha 902:
1.22 misha 903: if(as_text && result.length)
904: fix_line_breaks(result.str, result.length);
905:
1.1 paf 906: result.headers->put(file_status_name, new VInt(status_code));
1.16 misha 907:
1.1 paf 908: return result;
909: }
1.84 moko 910:
911: /* ********************** httpd *************************** */
912:
1.111 moko 913: #ifdef HTTPD_DEBUG
914: void pa_log(const char* fmt, ...);
915: #define LOG(action) action
916: #else
917: #define LOG(action)
918: #endif
919:
1.100 moko 920: enum EscapeState {
921: Initial,
922: Default,
923: EscapeFirst,
924: EscapeSecond
925: };
926:
927: static bool check_uri(const char *uri){
928: EscapeState state=Initial;
1.120 moko 929: uint escapedValue=0;
1.100 moko 930:
931: const char *pattern="/../";
932: const char *pos=pattern;
933:
934: while(*uri){
935: uchar c=(uchar)*(uri++);
936: switch(state) {
937: case Initial:
938: if(c!='/')
939: return false;
940: state=Default;
941: break;
942: case Default:
943: if(c=='%'){
944: state=EscapeFirst;
945: continue;
946: }
947: if(c=='?')
948: return true;
949: break;
950: case EscapeFirst:
951: if(isxdigit(c)){
952: state=EscapeSecond;
953: escapedValue=hex_value[c] << 4;
954: continue;
955: }
956: return false;
957: case EscapeSecond:
958: if(isxdigit(c)){
959: state=Default;
1.105 moko 960: c=(uchar)(escapedValue + hex_value[c]);
1.100 moko 961:
962: // implementing Apache AllowEncodedSlashes Off just in case
963: if(c=='/' || c=='\\')
964: return false;
965:
966: break;
967: }
968: return false;
969: }
970:
971: if(c==*pos || c=='\\' && *pos=='/'){
972: if(!*(++pos))
973: return false;
974: } else {
975: pos=pattern;
976: }
977: }
978: return true;
979: }
980:
1.84 moko 981: class HTTPD_request : public HTTP_response {
982: public:
983: const char *method;
984: const char *uri;
985:
1.97 moko 986: HTTPD_request() : HTTP_response(), method(NULL), uri(NULL){};
1.84 moko 987:
1.120 moko 988: ssize_t pa_recv(SOCKET sockfd, char *buf, size_t len);
1.103 moko 989:
1.120 moko 990: bool read(SOCKET sock, size_t size){
1.103 moko 991: if(length + size > buf_size)
992: resize(buf_size * 2 + size);
993: ssize_t received_size=pa_recv(sock, buf + length, size);
994: if(received_size == 0)
995: return false;
996: if(received_size < 0) {
997: if(int no = pa_socks_errno())
1.111 moko 998: throw Exception("httpd.read", 0, "error receiving request: %s (%d)", pa_socks_strerr(no), no);
1.103 moko 999: return false;
1000: }
1001: length+=received_size;
1002: buf[length]='\0';
1003: return true;
1004: }
1005:
1.84 moko 1006: const char *extract_method(char *method_line){
1007: char* uri_start = strchr(method_line, ' ');
1008:
1009: if(!uri_start || uri_start == method_line)
1010: return NULL;
1011:
1012: char* uri_end=strchr(uri_start+1, ' ');
1013:
1014: if(!uri_end || uri_end == uri_start+1)
1015: return NULL;
1016:
1017: uri=pa_strdup(uri_start+1, uri_end-uri_start-1);
1.100 moko 1018: if(!check_uri(uri))
1019: throw Exception("httpd.request", 0, "invalid uri '%s'", uri);
1020:
1.84 moko 1021: return str_upper(method_line, uri_start-method_line);
1022: }
1023:
1.103 moko 1024:
1.120 moko 1025: bool read_header(SOCKET);
1026: size_t read_post(SOCKET, char *, size_t);
1.84 moko 1027: };
1028:
1029: enum HTTPD_request_state {
1030: HTTPD_METHOD,
1031: HTTPD_HEADERS
1032: };
1033:
1.120 moko 1034: ssize_t HTTPD_request::pa_recv(SOCKET sockfd, char *buffer, size_t len){
1.111 moko 1035: LOG(pa_log("httpd [%d] recv %d appending to %d ...", sockfd, len, length));
1.107 moko 1036:
1037: #ifdef PA_USE_ALARM
1.118 moko 1038: if(PA_NO_THREADS) signal(SIGALRM, timeout_handler);
1039: if(PA_NO_THREADS && sigsetjmp(timeout_env, 1)) {
1.111 moko 1040: LOG(pa_log("httpd [%d] recv got %d sec timeout", sockfd, pa_httpd_timeout));
1041: if(length) // timeout on "void" connection is normal
1042: throw Exception("httpd.timeout", 0, "timeout occurred while receiving request");
1043: return 0;
1.103 moko 1044: } else
1.107 moko 1045: #endif
1.103 moko 1046: {
1.107 moko 1047: ALARM(pa_httpd_timeout);
1.104 moko 1048: ssize_t result=recv(sockfd, buffer, len, 0);
1.107 moko 1049: ALARM(0);
1.111 moko 1050: LOG(pa_log("httpd [%d] recv got %d bytes", sockfd, result));
1.112 moko 1051: LOG(pa_log("httpd [%d] %s", sockfd, buffer));
1.103 moko 1052: return result;
1053: }
1054: }
1055:
1.115 moko 1056: static bool valid_http_method(const char * method){
1057: return method && (
1058: !strcmp(method, "GET") ||
1059: !strcmp(method, "HEAD") ||
1060: !strcmp(method, "POST") ||
1061: !strcmp(method, "PUT") ||
1062: !strcmp(method, "DELETE") ||
1063: !strcmp(method, "CONNECT") ||
1064: !strcmp(method, "OPTIONS") ||
1065: !strcmp(method, "TRACE") ||
1066: !strcmp(method, "PATCH")
1067: );
1068: }
1069:
1.120 moko 1070: bool HTTPD_request::read_header(SOCKET sock) {
1.84 moko 1071: enum HTTPD_request_state state = HTTPD_METHOD;
1072:
1073: size_t chunk_size = 0x400*4;
1074: resize(chunk_size);
1075:
1076: while(read(sock, chunk_size)){
1077: switch(state){
1078: case HTTPD_METHOD: {
1079: size_t method_size = first_line();
1080: if(!method_size)
1081: break;
1082:
1083: char *method_line = pa_strdup(buf, method_size);
1084: method = extract_method(method_line);
1085:
1.115 moko 1086: if(!valid_http_method(method))
1.84 moko 1087: throw Exception("httpd.method", new String(method ? method : method_line), "invalid request method");
1088: state = HTTPD_HEADERS;
1089: }
1090:
1091: case HTTPD_HEADERS: {
1092: if(!body_start())
1093: break;
1094:
1095: parse_headers();
1.110 moko 1096: return true;
1.84 moko 1097: }
1098: }
1099: }
1100:
1.111 moko 1101: if(!length){ // browsers open connections in advance and they will be empty unless user requests more pages
1102: LOG(pa_log("httpd [%d] void request", sock));
1.110 moko 1103: return false;
1.111 moko 1104: }
1.110 moko 1105:
1.84 moko 1106: if(state == HTTPD_METHOD)
1107: throw Exception("httpd.request", 0, "bad request from host - no method found (size=%u)", length);
1108:
1109: if(state == HTTPD_HEADERS){
1110: parse_headers();
1111: body_offset=length;
1112: }
1.110 moko 1113:
1114: return true;
1.84 moko 1115: }
1116:
1.120 moko 1117: size_t HTTPD_request::read_post(SOCKET sock, char *body, size_t max_bytes) {
1.87 moko 1118: size_t total_read = min(length - body_offset, max_bytes);
1.98 moko 1119: memcpy(body, buf + body_offset, total_read);
1.87 moko 1120:
1121: while (total_read < max_bytes){
1.103 moko 1122: ssize_t received_size = pa_recv(sock, body + total_read, max_bytes - total_read);
1.87 moko 1123: if(received_size == 0)
1124: return total_read;
1125: if(received_size < 0) {
1126: if(int no = pa_socks_errno())
1.111 moko 1127: throw Exception("httpd.read", new String(uri), "error receiving request body: %s (%d)", pa_socks_strerr(no), no);
1.87 moko 1128: return total_read;
1129: }
1130: total_read += received_size;
1131: }
1132: return total_read;
1133: }
1134:
1.84 moko 1135: /* ********************************************************** */
1136:
1.85 moko 1137: Array<HTTP_Headers::Header> &HTTPD_Connection::headers() {
1.84 moko 1138: return request->headers.headers;
1139: }
1140:
1141: const char *HTTPD_Connection::method() {
1142: return request->method;
1143: }
1144:
1145: const char *HTTPD_Connection::uri() {
1146: return request->uri;
1147: }
1148:
1149: const char *HTTPD_Connection::content_type() {
1150: return request->headers.content_type.cstr();
1151: }
1152:
1153: uint64_t HTTPD_Connection::content_length(){
1154: return request->headers.content_length;
1155: }
1156:
1.110 moko 1157: bool HTTPD_Connection::read_header(){
1.84 moko 1158: request = new HTTPD_request();
1.111 moko 1159: bool result = request->read_header(sock);
1160: LOG(if(result){
1161: pa_log("httpd [%d] got %s \"%s\"", sock, method(), uri());
1162: })
1163: return result;
1.84 moko 1164: }
1165:
1.87 moko 1166: size_t HTTPD_Connection::read_post(char *body, size_t max_bytes) {
1167: return request->read_post(sock, body, max_bytes);
1168: }
1169:
1.90 moko 1170: size_t HTTPD_Connection::send_body(const void *buf, size_t size) {
1.112 moko 1171: LOG(pa_log("httpd [%d] response %d bytes", sock, size));
1172: LOG(pa_log("httpd [%d] %s", sock, buf));
1.91 moko 1173: if(send(sock, (const char*)buf, size, 0) != (ssize_t)size) {
1.90 moko 1174: int no=pa_socks_errno();
1.111 moko 1175: throw Exception("httpd.write", 0, "error sending response: %s (%d)", pa_socks_strerr(no), no);
1.90 moko 1176: }
1177: return size;
1178: }
1179:
1.93 moko 1180: HTTPD_Connection::~HTTPD_Connection(){
1.120 moko 1181: if(sock != INVALID_SOCKET){
1.111 moko 1182: LOG(pa_log("httpd [%d] closed", sock));
1.93 moko 1183: closesocket(sock);
1.111 moko 1184: }
1.93 moko 1185: }
1186:
1.120 moko 1187: static int sock_ready(SOCKET fd, int operation, int timeout_value){
1.93 moko 1188: struct timeval timeout = {0, timeout_value * 1000};
1189: fd_set fds;
1190: FD_ZERO(&fds);
1191: FD_SET(fd, &fds);
1.120 moko 1192: int nfds = (int)fd + 1; /* typecast as nfds is ignored in MSVC anyway */
1.93 moko 1193: switch (operation){
1.120 moko 1194: case 0: return select(nfds, &fds, NULL, NULL, &timeout)>0; /* read */
1195: case 1: return select(nfds, NULL, &fds, NULL, &timeout)>0; /* write */
1196: default: return select(nfds, &fds, &fds, NULL, &timeout)>0; /* both */
1.93 moko 1197: }
1198: }
1199:
1.120 moko 1200: bool HTTPD_Connection::accept(SOCKET server_sock, int timeout_value) {
1.93 moko 1201: int ready = sock_ready(server_sock, 0, timeout_value);
1202: if (ready < 0) {
1203: int no=pa_socks_errno();
1204: if(no == EINTR)
1205: return false;
1206: throw Exception("httpd.accept", 0, "error waiting for connection: %s (%d)", pa_socks_strerr(no), no);
1207: }
1208: if (ready == 0)
1209: return false; /* Timeout */
1210:
1211: struct sockaddr_in addr;
1212: socklen_t sock_addr_len = sizeof(struct sockaddr_in);
1213: memset(&addr, 0, sock_addr_len);
1214:
1215: sock = ::accept(server_sock, (struct sockaddr *)&addr, &sock_addr_len);
1.120 moko 1216: if(sock == INVALID_SOCKET){
1.93 moko 1217: int no=pa_socks_errno();
1218: throw Exception("httpd.accept", 0, "error accepting connection: %s (%d)", pa_socks_strerr(no), no);
1219: }
1220:
1.123 moko 1221: // Has no positive performance effect, requires include <netinet/tcp.h>
1222: // static int sock_on=1;
1223: // setsockopt(sock, IPPROTO_TCP, TCP_NODELAY, (char *)&sock_on, sizeof(sock_on));
1224:
1.93 moko 1225: remote_addr = pa_strdup(inet_ntoa(addr.sin_addr));
1.111 moko 1226: LOG(pa_log("httpd [%d] accepted from %s", sock, remote_addr));
1.93 moko 1227: return true;
1228: }
1.84 moko 1229:
1.107 moko 1230: HTTPD_Server::HTTPD_MODE HTTPD_Server::mode = HTTPD_Server::SEQUENTIAL;
1.114 moko 1231: const char *HTTPD_Server::port=NULL;
1.106 moko 1232:
1.108 moko 1233: void HTTPD_Server::set_mode(const String &value){
1234: if(value == "sequental") mode = SEQUENTIAL;
1.113 moko 1235: #ifdef HAVE_TLS
1.108 moko 1236: else if (value == "threaded") mode = MULTITHREADED;
1.113 moko 1237: #endif
1.108 moko 1238: #ifdef _MSC_VER
1.117 moko 1239: else throw Exception("httpd.mode", &value, "$MAIN:HTTPD.mode must be 'sequental' or 'threaded'");
1.108 moko 1240: #else
1241: else if (value == "parallel") mode = PARALLEL;
1.117 moko 1242: else throw Exception("httpd.mode", &value, "$MAIN:HTTPD.mode must be 'sequental', 'parallel' or 'threaded'");
1.108 moko 1243: #endif
1244: }
1245:
1.120 moko 1246: SOCKET HTTPD_Server::bind(const char *host_port){
1.84 moko 1247: struct sockaddr_in me;
1248:
1.114 moko 1249: port = strchr(host_port, ':');
1.86 moko 1250: const char *host = NULL;
1.116 moko 1251: if(port){
1.114 moko 1252: if(port > host_port)
1253: host = pa_strdup(host_port, port - host_port);
1.86 moko 1254: port += 1;
1255: } else {
1256: port = host_port;
1257: }
1258:
1.105 moko 1259: if(!set_addr(&me, host, (short)pa_atoui(port))){
1.84 moko 1260: if (host)
1.127 moko 1261: throw Exception("httpd.bind", 0, "cannot resolve hostname \"%s\"", host);
1.84 moko 1262: me.sin_addr.s_addr=INADDR_ANY;
1263: }
1264:
1.120 moko 1265: SOCKET sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP/*0*/);
1.84 moko 1266:
1.120 moko 1267: if(sock == INVALID_SOCKET){
1.84 moko 1268: int no=pa_socks_errno();
1.127 moko 1269: throw Exception("httpd.bind", 0, "cannot make socket: %s (%d)", pa_socks_strerr(no), no);
1.84 moko 1270: }
1271:
1.93 moko 1272: static int sock_on = 1;
1273:
1.84 moko 1274: if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (char *)&sock_on, sizeof(sock_on)) ||
1275: setsockopt(sock, SOL_SOCKET, SO_KEEPALIVE, (char *)&sock_on, sizeof(sock_on)) ||
1276: ::bind(sock, (struct sockaddr*)&me, sizeof(me)) ||
1277: listen(sock, 16)) {
1.89 moko 1278: closesocket(sock);
1.84 moko 1279: int no = pa_socks_errno();
1.127 moko 1280: throw Exception("httpd.bind", 0, "cannot bind socket: %s (%d)", pa_socks_strerr(no), no);
1.84 moko 1281: }
1282: return sock;
1283: }
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