Annotation of parser3/src/main/pa_http.C, revision 1.112
1.1 paf 1: /** @file
2: Parser: http support functions.
3:
1.109 moko 4: Copyright (c) 2001-2020 Art. Lebedev Studio (http://www.artlebedev.com)
1.1 paf 5: Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
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:
1.112 ! moko 17: volatile const char * IDENT_PA_HTTP_C="$Id: pa_http.C,v 1.111 2020/12/16 15:04:47 moko Exp $" IDENT_PA_HTTP_H;
1.59 moko 18:
19: #ifdef _MSC_VER
20: #include <windows.h>
1.89 moko 21: #define socklen_t int
1.59 moko 22: #else
23: #define closesocket close
24: #endif
1.53 moko 25:
1.1 paf 26: // defines
27:
1.19 misha 28: #define HTTP_METHOD_NAME "method"
29: #define HTTP_FORM_NAME "form"
30: #define HTTP_BODY_NAME "body"
31: #define HTTP_TIMEOUT_NAME "timeout"
32: #define HTTP_HEADERS_NAME "headers"
1.22 misha 33: #define HTTP_FORM_ENCTYPE_NAME "enctype"
1.19 misha 34: #define HTTP_ANY_STATUS_NAME "any-status"
1.59 moko 35: #define HTTP_OMIT_POST_CHARSET_NAME "omit-post-charset" // ^file::load[...;http://...;$.method[post]] by default adds charset to content-type
1.12 misha 36:
1.1 paf 37: #define HTTP_USER "user"
38: #define HTTP_PASSWORD "password"
39:
1.70 moko 40: #define HTTP_USER_AGENT "user-agent"
1.1 paf 41: #define DEFAULT_USER_AGENT "parser3"
42:
1.59 moko 43: #ifndef INADDR_NONE
44: #define INADDR_NONE ((ulong) -1)
45: #endif
1.1 paf 46:
47: #undef CRLF
48: #define CRLF "\r\n"
49:
1.54 misha 50: // helpers
1.56 misha 51:
1.85 moko 52: bool HTTP_Headers::add_header(const char *line){
1.78 moko 53: const char *value=strchr(line, ':');
54:
55: if(value && value != line){ // we need only headers, not the response code
56: Header header(str_upper(line, value-line), String::Body(value+1).trim(String::TRIM_BOTH, " \t\n\r"));
57:
58: if(header.name == String::Body(HTTP_CONTENT_TYPE_UPPER) && content_type.is_empty())
59: content_type=header.value;
60:
61: if(header.name == String::Body("CONTENT-LENGTH") && content_length==0)
1.95 moko 62: ALTER_EXCEPTION_COMMENT(content_length=pa_atoul(header.value.cstr()), " for content-length");
1.78 moko 63:
64: headers+=header;
65:
66: return true;
67: }
68: return false;
69: }
70:
1.54 misha 71: class Cookies_table_template_columns: public ArrayString {
72: public:
73: Cookies_table_template_columns() {
74: *this+=new String("name");
75: *this+=new String("value");
76: *this+=new String("expires");
77: *this+=new String("max-age");
78: *this+=new String("domain");
79: *this+=new String("path");
80: *this+=new String("httponly");
81: *this+=new String("secure");
82: }
83: };
84:
85:
1.1 paf 86: static bool set_addr(struct sockaddr_in *addr, const char* host, const short port){
1.22 misha 87: memset(addr, 0, sizeof(*addr));
88: addr->sin_family=AF_INET;
89: addr->sin_port=htons(port);
90: if(host) {
1.65 moko 91: struct hostent *hostIP=gethostbyname(host);
92: if(hostIP && hostIP->h_addrtype == AF_INET){
93: memcpy(&addr->sin_addr, hostIP->h_addr, hostIP->h_length);
94: return true;
95: }
96: }
97: return false;
1.1 paf 98: }
99:
1.84 moko 100: class HTTP_response : public PA_Allocated {
1.78 moko 101: public:
102: char *buf;
103: size_t length;
104: size_t buf_size;
105: size_t body_offset;
106:
1.85 moko 107: HTTP_Headers headers;
1.78 moko 108:
1.97 moko 109: HTTP_response() : buf(NULL), length(0), buf_size(0), body_offset(0){}
1.78 moko 110:
111: void resize(size_t size){
112: buf_size=size;
113: buf=(char *)pa_realloc(buf, size + 1);
114: }
115:
116: bool read(int sock, size_t size){
1.103 moko 117: if(length + size > buf_size)
118: resize(buf_size * 2 + size);
1.78 moko 119: ssize_t received_size=recv(sock, buf + length, size, 0);
1.103 moko 120: if(received_size == 0)
1.78 moko 121: return false;
1.103 moko 122: if(received_size < 0) {
123: if(int no = pa_socks_errno())
1.102 moko 124: throw Exception("http.timeout", 0, "error receiving response: %s (%d)", pa_socks_strerr(no), no);
1.78 moko 125: return false;
126: }
127: length+=received_size;
128: buf[length]='\0';
129: return true;
130: }
131:
1.83 moko 132: size_t first_line(){
1.89 moko 133: char *header=strchr(buf, '\n');
134: if(!header)
1.78 moko 135: return false;
136:
1.89 moko 137: return header-buf;
1.78 moko 138: }
139:
140: const char *status_code(char *status_line, int &result){
141: char* status_start = strchr(status_line, ' ');
142:
143: if(!(status_start++))
144: return status_line;
145:
146: char* status_end=strchr(status_start, ' ');
147:
148: if(!status_end)
149: return status_line;
150:
151: if(status_end==status_start)
152: return status_line;
1.1 paf 153:
1.78 moko 154: const char *result_str=pa_strdup(status_start, status_end-status_start);
1.95 moko 155: ALTER_EXCEPTION_COMMENT(result=pa_atoui(result_str), " for HTTP status");
1.78 moko 156: return result_str;
157: }
1.2 paf 158:
1.78 moko 159: bool body_start(){
160: char *p=buf;
161: while((p=strchr(p, '\n'))) {
162: if(p[1]=='\r' && p[2]=='\n'){ // \r\n\r\n
163: *p='\0';
164: body_offset=p-buf+3;
165: return true;
166: }
167: if(p[1]=='\n') { // \n\n
168: *p='\0';
169: body_offset=p-buf+2;
170: return true;
171: }
172: p++;
173: }
174: return false;
1.2 paf 175: }
1.78 moko 176:
177: void parse_headers(){
178: const String header_block(buf, String::L_TAINTED);
179:
180: ArrayString aheaders;
181: header_block.split(aheaders, 0, "\n");
182:
183: Array_iterator<const String*> i(aheaders);
184: i.next(); // skipping status
185: for(;i.has_next();){
186: const char *line=i.next()->cstr();
187: if(!headers.add_header(line))
1.97 moko 188: throw Exception("http.response", 0, "bad response from host - bad header \"%s\"", line);
1.78 moko 189: }
1.1 paf 190: }
191:
1.88 moko 192: int read_response(int sock, bool fail_on_status_ne_200);
1.78 moko 193: };
194:
195: enum HTTP_response_state {
196: HTTP_STATUS_CODE,
197: HTTP_HEADERS,
198: HTTP_BODY
199: };
200:
1.88 moko 201: int HTTP_response::read_response(int sock, bool fail_on_status_ne_200) {
1.78 moko 202: HTTP_response_state state=HTTP_STATUS_CODE;
203: int result=0;
204:
205: size_t chunk_size=0x400*16;
1.88 moko 206: resize(2*chunk_size);
1.78 moko 207:
1.88 moko 208: while(read(sock, chunk_size)){
1.78 moko 209: switch(state){
210: case HTTP_STATUS_CODE: {
1.88 moko 211: size_t status_size=first_line();
1.78 moko 212: if(!status_size)
213: break;
214:
1.88 moko 215: const char *status=status_code(pa_strdup(buf, status_size), result);
1.78 moko 216:
217: if(!result || fail_on_status_ne_200 && result!=200)
218: throw Exception("http.status", status ? new String(status) : &String::Empty, "invalid HTTP response status");
219:
220: state=HTTP_HEADERS;
221: }
222:
223: case HTTP_HEADERS: {
1.88 moko 224: if(!body_start())
1.78 moko 225: break;
226:
1.88 moko 227: parse_headers();
1.78 moko 228:
1.97 moko 229: size_t content_length=check_file_size(headers.content_length, 0);
1.88 moko 230: if(content_length>0 && (content_length + body_offset) > length){
231: resize(content_length + body_offset + 0x400*64);
1.78 moko 232: }
233:
234: state=HTTP_BODY;
1.1 paf 235: break;
236: }
1.78 moko 237:
238: case HTTP_BODY: {
239: chunk_size=0x400*64;
1.1 paf 240: break;
241: }
242: }
243: }
1.78 moko 244:
245: if(state==HTTP_STATUS_CODE)
1.97 moko 246: throw Exception("http.response", 0, "bad response from host - no status found (size=%u)", length);
1.78 moko 247:
248: if(state==HTTP_HEADERS){
1.88 moko 249: parse_headers();
250: body_offset=length;
1.1 paf 251: }
1.78 moko 252:
253: return result;
1.1 paf 254: }
255:
256: /* ********************** request *************************** */
257:
258: #if defined(SIGALRM) && defined(HAVE_SIGSETJMP) && defined(HAVE_SIGLONGJMP)
259: # define PA_USE_ALARM
260: #endif
261:
262: #ifdef PA_USE_ALARM
263: static sigjmp_buf timeout_env;
264: static void timeout_handler(int /*sig*/){
1.101 moko 265: siglongjmp(timeout_env, 1);
1.1 paf 266: }
1.101 moko 267: #define ALARM(value) alarm(value)
268: #else
269: #define ALARM(value)
1.1 paf 270: #endif
271:
1.78 moko 272: 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 273: if(!host)
1.73 moko 274: throw Exception("http.host", 0, "zero hostname"); //never
1.1 paf 275:
1.101 moko 276: volatile int sock=-1; // to prevent makeing it register variable, because it will be clobbered by longjmp [thanks gcc warning]
277:
1.1 paf 278: #ifdef PA_USE_ALARM
1.101 moko 279: signal(SIGALRM, timeout_handler);
1.1 paf 280: if(sigsetjmp(timeout_env, 1)) {
1.101 moko 281: // duplicating closesocket to make code more simple for old compilers
282: if(sock>=0)
283: closesocket(sock);
284: throw Exception("http.timeout", 0, "timeout occurred while retrieving document");
1.1 paf 285: return 0; // never
1.101 moko 286: } else
1.1 paf 287: #endif
1.101 moko 288: {
289: ALARM(timeout_secs);
1.1 paf 290: try {
291: int result;
292: struct sockaddr_in dest;
293:
294: if(!set_addr(&dest, host, port))
1.73 moko 295: throw Exception("http.host", 0, "can not resolve hostname \"%s\"", host);
1.1 paf 296:
297: if((sock=socket(AF_INET, SOCK_STREAM, IPPROTO_TCP/*0*/))<0) {
298: int no=pa_socks_errno();
1.73 moko 299: throw Exception("http.connect", 0, "can not make socket: %s (%d)", pa_socks_strerr(no), no);
1.1 paf 300: }
301:
302: // To enable SO_DONTLINGER (that is, disable SO_LINGER)
303: // l_onoff should be set to zero and setsockopt should be called
304: linger dont_linger={0,0};
305: setsockopt(sock, SOL_SOCKET, SO_LINGER, (const char *)&dont_linger, sizeof(dont_linger));
306:
307: #ifdef WIN32
308: // SO_*TIMEO can be defined in .h but not implemlemented in protocol,
309: // failing subsequently with Option not supported by protocol (99) message
310: // could not suppress that, so leaving this only for win32
311: int timeout_ms=timeout_secs*1000;
312: setsockopt(sock, SOL_SOCKET, SO_SNDTIMEO, (const char*)&timeout_ms, sizeof(timeout_ms));
313: setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, (const char*)&timeout_ms, sizeof(timeout_ms));
314: #endif
315:
316: if(connect(sock, (struct sockaddr *)&dest, sizeof(dest))) {
317: int no=pa_socks_errno();
1.78 moko 318: throw Exception("http.connect", 0, "can not connect to host \"%s\": %s (%d)", host, pa_socks_strerr(no), no);
1.1 paf 319: }
1.22 misha 320:
1.1 paf 321: if(send(sock, request, request_size, 0)!=(ssize_t)request_size) {
322: int no=pa_socks_errno();
1.78 moko 323: throw Exception("http.timeout", 0, "error sending request: %s (%d)", pa_socks_strerr(no), no);
1.1 paf 324: }
325:
1.88 moko 326: result=response.read_response(sock, fail_on_status_ne_200);
1.78 moko 327: closesocket(sock);
1.101 moko 328: ALARM(0);
1.1 paf 329: return result;
330: } catch(...) {
1.101 moko 331: ALARM(0);
1.78 moko 332: if(sock>=0)
333: closesocket(sock);
1.1 paf 334: rethrow;
335: }
336: }
337: }
338:
339: #ifndef DOXYGEN
340: struct Http_pass_header_info {
341: Request_charsets* charsets;
342: String* request;
1.35 misha 343: bool* user_agent_specified;
344: bool* content_type_specified;
345: bool* content_type_url_encoded;
1.1 paf 346: };
347: #endif
1.50 moko 348:
349: char *pa_http_safe_header_name(const char *name) {
350: char *result=pa_strdup(name);
351: char *n=result;
1.52 misha 352: if(!pa_isalpha((unsigned char)*n))
1.50 moko 353: *n++ = '_';
354: for(; *n; ++n) {
1.52 misha 355: if (!pa_isalnum((unsigned char)*n) && *n != '-' && *n != '_')
1.50 moko 356: *n = '_';
357: }
358: return result;
359: }
360:
1.101 moko 361: static void http_pass_header(HashStringValue::key_type aname, HashStringValue::value_type avalue, Http_pass_header_info *info) {
1.9 misha 362:
1.41 misha 363: const char* name_cstr=aname.cstr();
364:
1.38 misha 365: if(strcasecmp(name_cstr, HTTP_CONTENT_LENGTH)==0)
366: return;
367:
1.50 moko 368: String name=String(pa_http_safe_header_name(capitalize(name_cstr)), String::L_AS_IS);
369: String value=attributed_meaning_to_string(*avalue, String::L_HTTP_HEADER, true);
1.9 misha 370:
1.35 misha 371: *info->request << name << ": " << value << CRLF;
1.1 paf 372:
1.38 misha 373: if(strcasecmp(name_cstr, HTTP_USER_AGENT)==0)
1.35 misha 374: *info->user_agent_specified=true;
1.38 misha 375: if(strcasecmp(name_cstr, HTTP_CONTENT_TYPE)==0){
1.35 misha 376: *info->content_type_specified=true;
1.62 moko 377: *info->content_type_url_encoded=pa_strncasecmp(value.cstr(), HTTP_CONTENT_TYPE_FORM_URLENCODED)==0;
1.35 misha 378: }
1.1 paf 379: }
380:
1.10 misha 381: static void http_pass_cookie(HashStringValue::key_type name,
1.20 misha 382: HashStringValue::value_type value,
383: Http_pass_header_info *info) {
1.10 misha 384:
1.17 misha 385: *info->request << String(name, String::L_HTTP_COOKIE) << "="
1.31 misha 386: << attributed_meaning_to_string(*value, String::L_HTTP_COOKIE, true)
1.10 misha 387: << "; ";
388:
389: }
1.1 paf 390:
391: static const String* basic_authorization_field(const char* user, const char* pass) {
392: if(!user&& !pass)
393: return 0;
394:
395: String combined;
396: if(user)
397: combined<<user;
398: combined<<":";
399: if(pass)
400: combined<<pass;
401:
1.20 misha 402: String* result=new String("Basic ");
1.82 moko 403: *result<<pa_base64_encode(combined.cstr(), combined.length(), Base64Options(false /*no wrap*/));
1.1 paf 404: return result;
405: }
406:
1.73 moko 407: static void form_string_value2string(HashStringValue::key_type key, const String& value, String& result) {
1.30 misha 408: result << String(key, String::L_URI) << "=" << String(value, String::L_URI) << "&";
1.1 paf 409: }
1.20 misha 410:
1.1 paf 411: #ifndef DOXYGEN
412: struct Form_table_value2string_info {
413: HashStringValue::key_type key;
414: String& result;
415:
416: Form_table_value2string_info(HashStringValue::key_type akey, String& aresult):
417: key(akey), result(aresult) {}
418: };
419: #endif
420: static void form_table_value2string(Table::element_type row, Form_table_value2string_info* info) {
421: form_string_value2string(info->key, *row->get(0), info->result);
422: }
1.73 moko 423:
424: static void form_value2string(HashStringValue::key_type key, HashStringValue::value_type value, String* result) {
1.1 paf 425: if(const String* svalue=value->get_string())
426: form_string_value2string(key, *svalue, *result);
427: else if(Table* tvalue=value->get_table()) {
428: Form_table_value2string_info info(key, *result);
429: tvalue->for_each(form_table_value2string, &info);
430: } else
1.73 moko 431: throw Exception(PARSER_RUNTIME, new String(key, String::L_TAINTED),
1.63 moko 432: "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 433: }
1.20 misha 434:
1.5 misha 435: const char* pa_form2string(HashStringValue& form, Request_charsets& charsets) {
1.1 paf 436: String string;
1.3 paf 437: form.for_each<String*>(form_value2string, &string);
1.44 misha 438: return string.untaint_and_transcode_cstr(String::L_URI, &charsets);
1.1 paf 439: }
1.22 misha 440:
441: struct FormPart {
442: Request* r;
443: const char* boundary;
1.48 moko 444: String* string;
1.22 misha 445: Form_table_value2string_info* info;
1.48 moko 446:
447: struct BinaryBlock{
448: const char* ptr;
449: size_t length;
450:
451: BinaryBlock(String* astring, Request* r): ptr(astring->untaint_and_transcode_cstr(String::L_AS_IS, &r->charsets)), length(strlen(ptr)){}
452: BinaryBlock(const char* aptr, size_t alength): ptr(aptr), length(alength){}
453: };
454:
455: Array<BinaryBlock> blocks;
456:
457: FormPart(Request* ar, const char* aboundary): r(ar), boundary(aboundary), string(new String()){}
458:
459: const char *post(size_t &length){
460: if(blocks.count()){
461: blocks+=BinaryBlock(string, r);
462:
463: length=0;
464: for(size_t i=0; i<blocks.count(); i++)
465: length+=blocks[i].length;
466:
467: char *result=(char *)pa_malloc_atomic(length);
468: char *ptr=result;
469:
470: for(size_t i=0; i<blocks.count(); i++){
471: memcpy(ptr, blocks[i].ptr, blocks[i].length);
472: ptr+=blocks[i].length;
473: }
474:
475: return result;
476: } else {
477: BinaryBlock result(string, r);
478: length=result.length;
479: return result.ptr;
480: }
481: }
1.22 misha 482: };
483:
1.73 moko 484: static void form_part_boundary_header(FormPart& part, String::Body name, const char* file_name=0) {
485: *part.string << "--" << part.boundary << CRLF CONTENT_DISPOSITION_CAPITALIZED ": form-data; name=\"" << name << "\"";
1.22 misha 486: if(file_name){
487: if(strcmp(file_name, NONAME_DAT)!=0)
1.48 moko 488: *part.string << "; filename=\"" << file_name << "\"";
489: *part.string << CRLF HTTP_CONTENT_TYPE_CAPITALIZED ": " << part.r->mime_type_of(file_name);
1.22 misha 490: }
1.48 moko 491: *part.string << CRLF CRLF;
1.22 misha 492: }
493:
1.73 moko 494: static void form_string_value2part(HashStringValue::key_type key, const String& value, FormPart& part) {
1.28 misha 495: form_part_boundary_header(part, key);
1.48 moko 496: *part.string << value << CRLF;
1.22 misha 497: }
498:
1.73 moko 499: static void form_file_value2part(HashStringValue::key_type key, VFile& vfile, FormPart& part) {
1.28 misha 500: form_part_boundary_header(part, key, vfile.fields().get(name_name)->as_string().cstr());
1.48 moko 501: part.blocks+=FormPart::BinaryBlock(part.string, part.r);
502: part.blocks+=FormPart::BinaryBlock(vfile.value_ptr(), vfile.value_size());
503: part.string=new String();
504: *part.string << CRLF;
1.22 misha 505: }
506:
507: static void form_table_value2part(Table::element_type row, FormPart* part) {
508: form_string_value2part(part->info->key, *row->get(0), *part);
509: }
510:
1.73 moko 511: static void form_value2part(HashStringValue::key_type key, HashStringValue::value_type value, FormPart& part) {
1.22 misha 512: if(const String* svalue=value->get_string())
513: form_string_value2part(key, *svalue, part);
514: else if(Table* tvalue=value->get_table()) {
1.48 moko 515: Form_table_value2string_info info(key, *part.string);
1.22 misha 516: part.info = &info;
517: tvalue->for_each(form_table_value2part, &part);
1.33 misha 518: } else if(VFile* vfile=static_cast<VFile *>(value->as("file"))){
1.22 misha 519: form_file_value2part(key, *vfile, part);
520: } else
1.73 moko 521: 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 522: }
523:
524: const char* pa_form2string_multipart(HashStringValue& form, Request& r, const char* boundary, size_t& post_size){
1.48 moko 525: FormPart formpart(&r, boundary);
1.22 misha 526: form.for_each<FormPart&>(form_value2part, formpart);
1.48 moko 527: *formpart.string << "--" << boundary << "--";
528: // @todo: return binary blocks here to save memory in pa_internal_file_read_http
529: return formpart.post(post_size);
1.22 misha 530: }
531:
1.54 misha 532: // Set-Cookie: name=value; Domain=docs.foo.com; Path=/accounts; Expires=Wed, 13-Jan-2021 22:23:01 GMT; Secure; HttpOnly
533: static ArrayString* parse_cookie(Request& r, const String& cookie) {
1.64 moko 534: char *current=pa_strdup(cookie.cstr());
1.54 misha 535:
536: const String* name=0;
1.55 moko 537: const String* value=&String::Empty;
538: const String* expires=&String::Empty;
539: const String* max_age=&String::Empty;
540: const String* path=&String::Empty;
541: const String* domain=&String::Empty;
542: const String* httponly=&String::Empty;
543: const String* secure=&String::Empty;
1.54 misha 544:
545: bool first_pair=true;
546:
547: do {
548: if(char *meaning=search_stop(current, ';'))
549: if(char *attribute=search_stop(meaning, '=')) {
550: const String* sname=new String(unescape_chars(attribute, strlen(attribute), &r.charsets.source(), true/*don't convert '"' to space*/), String::L_TAINTED);
551: const String* smeaning=0;
552: if(meaning)
553: smeaning=new String(unescape_chars(meaning, strlen(meaning), &r.charsets.source(), true/*don't convert '"' to space*/), String::L_TAINTED);
554:
555: if(first_pair) {
556: // name + value
557: name=sname;
558: value=smeaning;
559: first_pair=false;
560: } else {
561: const String& slower=sname->change_case(r.charsets.source(), String::CC_LOWER);
562:
563: if(slower == "expires")
564: expires=smeaning;
565: else if(slower == "max-age")
566: max_age=smeaning;
567: else if(slower == "domain")
568: domain=smeaning;
569: else if(slower == "path")
570: path=smeaning;
571: else if(slower == "httponly")
572: httponly=new String("1", String::L_CLEAN);
573: else if(slower == "secure")
574: secure=new String("1", String::L_CLEAN);
575: else {
576: // todo@ ?
577: }
578: }
579: }
580: } while(current);
581:
582: if(!name)
583: return 0;
584:
585: ArrayString* result=new ArrayString(8);
586: *result+=name;
587: *result+=value;
588: *result+=expires;
589: *result+=max_age;
590: *result+=domain;
591: *result+=path;
592: *result+=httponly;
593: *result+=secure;
594:
595: return result;
596: }
597:
1.56 misha 598: Table* parse_cookies(Request& r, Table *cookies){
599: Table& result=*new Table(new Cookies_table_template_columns);
600:
601: for(Array_iterator<Table::element_type> i(*cookies); i.has_next(); )
602: if(ArrayString* row=parse_cookie(r, *i.next()->get(0)))
603: result+=row;
604:
605: return &result;
606: }
607:
1.75 moko 608: void tables_update(HashStringValue& tables, const String::Body name, const String& value){
1.72 moko 609: Table *table;
610: if(Value *valready=tables.get(name)) {
611: // second+ appearence
612: table=valready->get_table();
613: } else {
614: // first appearence
615: Table::columns_type columns=new ArrayString(1);
616: *columns+=new String("value");
617: table=new Table(columns);
618: tables.put(name, new VTable(table));
619: }
620: // this string becomes next row
621: ArrayString& row=*new ArrayString(1);
622: row+=&value;
623: *table+=&row;
624: }
625:
1.1 paf 626: /// @todo build .cookies field. use ^file.tables.SET-COOKIES.menu{ for now
1.72 moko 627: 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 628: File_read_http_result result;
1.20 misha 629: char host[MAX_STRING];
1.66 moko 630: const char *idna_host;
1.1 paf 631: const char* uri;
1.49 moko 632: short port=80;
1.10 misha 633: const char* method="GET";
1.21 misha 634: bool method_is_get=true;
1.1 paf 635: HashStringValue* form=0;
636: int timeout_secs=2;
637: bool fail_on_status_ne_200=true;
1.12 misha 638: bool omit_post_charset=false;
1.1 paf 639: Value* vheaders=0;
1.10 misha 640: Value* vcookies=0;
1.11 misha 641: Value* vbody=0;
1.72 moko 642: Charset* asked_remote_charset=0;
1.58 moko 643: Charset* real_remote_charset=0;
1.1 paf 644: const char* user_cstr=0;
645: const char* password_cstr=0;
1.22 misha 646: const char* encode=0;
647: bool multipart=false;
1.1 paf 648:
649: if(options) {
650: int valid_options=pa_get_valid_file_options_count(*options);
651:
652: if(Value* vmethod=options->get(HTTP_METHOD_NAME)) {
653: valid_options++;
1.21 misha 654: method=vmethod->as_string().change_case(r.charsets.source(), String::CC_UPPER).cstr();
655: method_is_get=strcmp(method, "GET")==0;
1.1 paf 656: }
1.22 misha 657: if(Value* vencode=options->get(HTTP_FORM_ENCTYPE_NAME)) {
658: valid_options++;
659: encode=vencode->as_string().cstr();
660: }
1.1 paf 661: if(Value* vform=options->get(HTTP_FORM_NAME)) {
662: valid_options++;
663: form=vform->get_hash();
664: }
1.11 misha 665: if(vbody=options->get(HTTP_BODY_NAME)) {
1.1 paf 666: valid_options++;
667: }
668: if(Value* vtimeout=options->get(HTTP_TIMEOUT_NAME)) {
669: valid_options++;
670: timeout_secs=vtimeout->as_int();
671: }
1.11 misha 672: if(vheaders=options->get(HTTP_HEADERS_NAME)) {
1.1 paf 673: valid_options++;
674: }
1.11 misha 675: if(vcookies=options->get(HTTP_COOKIES_NAME)) {
1.10 misha 676: valid_options++;
677: }
1.1 paf 678: if(Value* vany_status=options->get(HTTP_ANY_STATUS_NAME)) {
679: valid_options++;
680: fail_on_status_ne_200=!vany_status->as_bool();
1.12 misha 681: }
1.20 misha 682: if(Value* vomit_post_charset=options->get(HTTP_OMIT_POST_CHARSET_NAME)){
1.12 misha 683: valid_options++;
684: omit_post_charset=vomit_post_charset->as_bool();
685: }
1.6 misha 686: if(Value* vcharset_name=options->get(PA_CHARSET_NAME)) {
1.77 moko 687: asked_remote_charset=&pa_charsets.get(vcharset_name->as_string());
1.58 moko 688: }
689: if(Value* vresponse_charset_name=options->get(PA_RESPONSE_CHARSET_NAME)) {
1.61 moko 690: valid_options++;
1.77 moko 691: real_remote_charset=&pa_charsets.get(vresponse_charset_name->as_string());
1.1 paf 692: }
693: if(Value* vuser=options->get(HTTP_USER)) {
694: valid_options++;
695: user_cstr=vuser->as_string().cstr();
696: }
697: if(Value* vpassword=options->get(HTTP_PASSWORD)) {
698: valid_options++;
699: password_cstr=vpassword->as_string().cstr();
700: }
701:
702: if(valid_options!=options->count())
1.46 misha 703: throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
1.1 paf 704: }
705: if(!asked_remote_charset) // defaulting to $request:charset
1.22 misha 706: asked_remote_charset=&(r.charsets).source();
707:
708: if(encode){
709: if(method_is_get)
1.72 moko 710: throw Exception(PARSER_RUNTIME, 0, "you can not use $." HTTP_FORM_ENCTYPE_NAME " option with method GET");
1.22 misha 711:
712: multipart=strcasecmp(encode, HTTP_CONTENT_TYPE_MULTIPART_FORMDATA)==0;
713:
714: if(!multipart && strcasecmp(encode, HTTP_CONTENT_TYPE_FORM_URLENCODED)!=0)
1.72 moko 715: throw Exception(PARSER_RUNTIME, 0, "$." HTTP_FORM_ENCTYPE_NAME " option value can be " HTTP_CONTENT_TYPE_FORM_URLENCODED " or " HTTP_CONTENT_TYPE_MULTIPART_FORMDATA " only");
1.22 misha 716: }
1.1 paf 717:
1.11 misha 718: if(vbody){
719: if(method_is_get)
1.72 moko 720: throw Exception(PARSER_RUNTIME, 0, "you can not use $." HTTP_BODY_NAME " option with method GET");
1.11 misha 721:
722: if(form)
1.72 moko 723: throw Exception(PARSER_RUNTIME, 0, "you can not use options $." HTTP_BODY_NAME " and $." HTTP_FORM_NAME " together");
1.11 misha 724: }
1.1 paf 725:
726: //preparing request
1.29 misha 727: String& connect_string=*new String(file_spec);
1.1 paf 728:
1.48 moko 729: const char* request;
730: size_t request_size;
1.1 paf 731: {
732: // influence URLencoding of tainted pieces to String::L_URI lang
1.22 misha 733: Temp_client_charset temp(r.charsets, *asked_remote_charset);
1.1 paf 734:
1.44 misha 735: const char* connect_string_cstr=connect_string.untaint_and_transcode_cstr(String::L_URI, &(r.charsets));
1.1 paf 736:
737: const char* current=connect_string_cstr;
738: if(strncmp(current, "http://", 7)!=0)
1.72 moko 739: throw Exception(PARSER_RUNTIME, &connect_string, "does not start with http://"); //never
1.1 paf 740: current+=7;
741:
742: strncpy(host, current, sizeof(host)-1); host[sizeof(host)-1]=0;
1.34 misha 743: char* host_uri=lsplit(host, '/');
744: uri=host_uri?current+(host_uri-1-host):"/";
745: char* port_cstr=lsplit(host, ':');
1.49 moko 746:
747: if (port_cstr){
748: char* error_pos=0;
749: port=(short)strtol(port_cstr, &error_pos, 10);
750: if(port==0 || *error_pos)
751: throw Exception(PARSER_RUNTIME, &connect_string, "invalid port number '%s'", port_cstr);
752: }
1.1 paf 753:
1.66 moko 754: idna_host=pa_idna_encode(host, r.charsets.source());
755:
1.11 misha 756: // making request head
1.1 paf 757: String head;
1.11 misha 758: head << method << " " << uri;
1.28 misha 759: if(method_is_get && form)
760: head << (strchr(uri, '?')!=0?"&":"?") << pa_form2string(*form, r.charsets);
1.11 misha 761:
1.66 moko 762: head <<" HTTP/1.0" CRLF "Host: "<< idna_host;
1.49 moko 763: if (port != 80)
764: head << ":" << port_cstr;
765: head << CRLF;
1.11 misha 766:
1.71 moko 767: char* boundary= multipart ? get_uuid_boundary() : 0;
1.22 misha 768:
1.35 misha 769: String user_headers;
770: bool user_agent_specified=false;
771: bool content_type_specified=false;
772: bool content_type_url_encoded=false;
773: if(vheaders && !vheaders->is_string()) { // allow empty
774: if(HashStringValue *headers=vheaders->get_hash()) {
775: Http_pass_header_info info={
776: &(r.charsets),
777: &user_headers,
778: &user_agent_specified,
779: &content_type_specified,
780: &content_type_url_encoded};
781: headers->for_each<Http_pass_header_info*>(http_pass_header, &info);
782: } else
1.72 moko 783: throw Exception(PARSER_RUNTIME, 0, "headers param must be hash");
1.35 misha 784: };
785:
1.48 moko 786: const char* request_body=0;
1.22 misha 787: size_t post_size=0;
788: if(form && !method_is_get) {
1.38 misha 789: head << "Content-Type: " << (multipart ? HTTP_CONTENT_TYPE_MULTIPART_FORMDATA : HTTP_CONTENT_TYPE_FORM_URLENCODED);
1.28 misha 790:
791: if(!omit_post_charset)
792: head << "; charset=" << asked_remote_charset->NAME_CSTR();
793:
1.22 misha 794: if(multipart) {
1.28 misha 795: head << "; boundary=" << boundary;
1.48 moko 796: request_body=pa_form2string_multipart(*form, r/*charsets & mime_type needed*/, boundary, post_size/*correct post_size returned here*/);
1.22 misha 797: } else {
1.48 moko 798: request_body=pa_form2string(*form, r.charsets);
799: post_size=strlen(request_body);
1.22 misha 800: }
1.28 misha 801: head << CRLF;
1.35 misha 802: } else if(vbody) {
1.38 misha 803: // $.body was specified
1.35 misha 804: if(content_type_url_encoded){
1.36 misha 805: // transcode + url-encode
1.48 moko 806: request_body=vbody->as_string().untaint_and_transcode_cstr(String::L_URI, &(r.charsets));
1.35 misha 807: } else {
1.36 misha 808: // content-type != application/x-www-form-urlencoded -> transcode only, don't url-encode!
1.72 moko 809: const String &sbody=vbody->as_string();
810: request_body=Charset::transcode(String::C(sbody.cstr(), sbody.length()), r.charsets.source(), *asked_remote_charset).str;
1.35 misha 811: }
1.48 moko 812: post_size=strlen(request_body);
1.1 paf 813: }
814:
815: // http://www.ietf.org/rfc/rfc2617.txt
816: if(const String* authorization_field_value=basic_authorization_field(user_cstr, password_cstr))
1.38 misha 817: head << "Authorization: " << *authorization_field_value << CRLF;
1.1 paf 818:
1.35 misha 819: head << user_headers;
820:
1.1 paf 821: if(!user_agent_specified) // defaulting
1.38 misha 822: head << "User-Agent: " DEFAULT_USER_AGENT CRLF;
1.1 paf 823:
1.12 misha 824: if(form && !method_is_get && content_type_specified) // POST + form + content-type was specified
1.72 moko 825: throw Exception(PARSER_RUNTIME, 0, "$.content-type can't be specified with method POST");
1.12 misha 826:
1.11 misha 827: if(vcookies && !vcookies->is_string()){ // allow empty
1.10 misha 828: if(HashStringValue* cookies=vcookies->get_hash()) {
1.37 misha 829: head << "Cookie: ";
1.35 misha 830: Http_pass_header_info info={&(r.charsets), &head, 0, 0, 0};
1.10 misha 831: cookies->for_each<Http_pass_header_info*>(http_pass_cookie, &info);
832: head << CRLF;
833: } else
1.72 moko 834: throw Exception(PARSER_RUNTIME, 0, "cookies param must be hash");
1.10 misha 835: }
836:
1.48 moko 837: if(request_body)
1.38 misha 838: head << "Content-Length: " << format(post_size, "%u") << CRLF;
1.48 moko 839:
840: head << CRLF;
841:
842: const char *request_head=head.untaint_and_transcode_cstr(String::L_URI, &(r.charsets));
1.1 paf 843:
1.48 moko 844: if(request_body){
845: size_t head_size = strlen(request_head);
846: request_size=post_size + head_size;
847: char *ptr=(char *)pa_malloc_atomic(request_size);
848: memcpy(ptr, request_head, head_size);
849: memcpy(ptr+head_size, request_body, post_size);
850: request=ptr;
851: } else {
852: request_size=strlen(request_head);
853: request=request_head;
854: }
1.1 paf 855: }
856:
1.78 moko 857:
1.97 moko 858: HTTP_response response;
1.22 misha 859:
1.28 misha 860: // sending request
1.95 moko 861: int status_code;
862: 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 863:
1.72 moko 864: // processing results
1.78 moko 865: char* raw_body=response.buf + response.body_offset;
866: size_t raw_body_size=response.length - response.body_offset;
867:
1.1 paf 868: result.headers=new HashStringValue;
869: VHash* vtables=new VHash;
1.72 moko 870: result.headers->put("tables", vtables);
871:
1.78 moko 872: if (!real_remote_charset && !response.headers.content_type.is_empty())
873: real_remote_charset=detect_charset(response.headers.content_type.cstr());
1.1 paf 874:
1.72 moko 875: if(as_text)
1.77 moko 876: real_remote_charset=pa_charsets.checkBOM(raw_body, raw_body_size, real_remote_charset);
1.72 moko 877:
878: if (!real_remote_charset)
879: real_remote_charset=asked_remote_charset; // never null
880:
1.85 moko 881: for(Array_iterator<HTTP_Headers::Header> i(response.headers.headers); i.has_next(); ){
882: HTTP_Headers::Header header=i.next();
1.72 moko 883:
884: header.transcode(*real_remote_charset, r.charsets.source());
885:
886: String &header_value=*new String(header.value, String::L_TAINTED);
887:
888: tables_update(vtables->hash(), header.name, header_value);
889: result.headers->put(header.name, new VString(header_value));
1.16 misha 890: }
891:
1.72 moko 892: // filling $.cookies
1.89 moko 893: if(vcookies=vtables->hash().get("SET-COOKIE"))
1.72 moko 894: result.headers->put(HTTP_COOKIES_NAME, new VTable(parse_cookies(r, vcookies->get_table())));
895:
1.1 paf 896: // output response
897: String::C real_body=String::C(raw_body, raw_body_size);
1.16 misha 898:
899: 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 900: real_body=Charset::transcode(real_body, *real_remote_charset, r.charsets.source());
1.1 paf 901: }
902:
903: result.str=const_cast<char *>(real_body.str); // hacking a little
904: result.length=real_body.length;
1.16 misha 905:
1.22 misha 906: if(as_text && result.length)
907: fix_line_breaks(result.str, result.length);
908:
1.1 paf 909: result.headers->put(file_status_name, new VInt(status_code));
1.16 misha 910:
1.1 paf 911: return result;
912: }
1.84 moko 913:
914: /* ********************** httpd *************************** */
915:
1.111 moko 916: #ifdef HTTPD_DEBUG
917: void pa_log(const char* fmt, ...);
918: #define LOG(action) action
919: #else
920: #define LOG(action)
921: #endif
922:
1.100 moko 923: enum EscapeState {
924: Initial,
925: Default,
926: EscapeFirst,
927: EscapeSecond
928: };
929:
930: static bool check_uri(const char *uri){
931: EscapeState state=Initial;
932: uint escapedValue;
933:
934: const char *pattern="/../";
935: const char *pos=pattern;
936:
937: while(*uri){
938: uchar c=(uchar)*(uri++);
939: switch(state) {
940: case Initial:
941: if(c!='/')
942: return false;
943: state=Default;
944: break;
945: case Default:
946: if(c=='%'){
947: state=EscapeFirst;
948: continue;
949: }
950: if(c=='?')
951: return true;
952: break;
953: case EscapeFirst:
954: if(isxdigit(c)){
955: state=EscapeSecond;
956: escapedValue=hex_value[c] << 4;
957: continue;
958: }
959: return false;
960: case EscapeSecond:
961: if(isxdigit(c)){
962: state=Default;
1.105 moko 963: c=(uchar)(escapedValue + hex_value[c]);
1.100 moko 964:
965: // implementing Apache AllowEncodedSlashes Off just in case
966: if(c=='/' || c=='\\')
967: return false;
968:
969: break;
970: }
971: return false;
972: }
973:
974: if(c==*pos || c=='\\' && *pos=='/'){
975: if(!*(++pos))
976: return false;
977: } else {
978: pos=pattern;
979: }
980: }
981: return true;
982: }
983:
1.84 moko 984: class HTTPD_request : public HTTP_response {
985: public:
986: const char *method;
987: const char *uri;
988:
1.97 moko 989: HTTPD_request() : HTTP_response(), method(NULL), uri(NULL){};
1.84 moko 990:
1.104 moko 991: ssize_t pa_recv(int sockfd, char *buf, size_t len);
1.103 moko 992:
993: bool read(int sock, size_t size){
994: if(length + size > buf_size)
995: resize(buf_size * 2 + size);
996: ssize_t received_size=pa_recv(sock, buf + length, size);
997: if(received_size == 0)
998: return false;
999: if(received_size < 0) {
1000: if(int no = pa_socks_errno())
1.111 moko 1001: throw Exception("httpd.read", 0, "error receiving request: %s (%d)", pa_socks_strerr(no), no);
1.103 moko 1002: return false;
1003: }
1004: length+=received_size;
1005: buf[length]='\0';
1006: return true;
1007: }
1008:
1.84 moko 1009: const char *extract_method(char *method_line){
1010: char* uri_start = strchr(method_line, ' ');
1011:
1012: if(!uri_start || uri_start == method_line)
1013: return NULL;
1014:
1015: char* uri_end=strchr(uri_start+1, ' ');
1016:
1017: if(!uri_end || uri_end == uri_start+1)
1018: return NULL;
1019:
1020: uri=pa_strdup(uri_start+1, uri_end-uri_start-1);
1.100 moko 1021: if(!check_uri(uri))
1022: throw Exception("httpd.request", 0, "invalid uri '%s'", uri);
1023:
1.84 moko 1024: return str_upper(method_line, uri_start-method_line);
1025: }
1026:
1.103 moko 1027:
1.110 moko 1028: bool read_header(int);
1.87 moko 1029: size_t read_post(int, char *, size_t);
1.84 moko 1030: };
1031:
1032: enum HTTPD_request_state {
1033: HTTPD_METHOD,
1034: HTTPD_HEADERS
1035: };
1036:
1.104 moko 1037: ssize_t HTTPD_request::pa_recv(int sockfd, char *buffer, size_t len){
1.111 moko 1038: LOG(pa_log("httpd [%d] recv %d appending to %d ...", sockfd, len, length));
1039: if(HTTPD_Server::mode == HTTPD_Server::MULTITHREADED){
1040: ssize_t result=recv(sockfd, buffer, len, 0);
1041: LOG(pa_log("httpd [%d] recv got %d bytes", sockfd, result));
1042: return result;
1043: }
1.107 moko 1044:
1045: #ifdef PA_USE_ALARM
1.103 moko 1046: signal(SIGALRM, timeout_handler);
1047: if(sigsetjmp(timeout_env, 1)) {
1.111 moko 1048: LOG(pa_log("httpd [%d] recv got %d sec timeout", sockfd, pa_httpd_timeout));
1049: if(length) // timeout on "void" connection is normal
1050: throw Exception("httpd.timeout", 0, "timeout occurred while receiving request");
1051: return 0;
1.103 moko 1052: } else
1.107 moko 1053: #endif
1.103 moko 1054: {
1.107 moko 1055: ALARM(pa_httpd_timeout);
1.104 moko 1056: ssize_t result=recv(sockfd, buffer, len, 0);
1.107 moko 1057: ALARM(0);
1.111 moko 1058: LOG(pa_log("httpd [%d] recv got %d bytes", sockfd, result));
1.112 ! moko 1059: LOG(pa_log("httpd [%d] %s", sockfd, buffer));
1.103 moko 1060: return result;
1061: }
1062: }
1063:
1.110 moko 1064: bool HTTPD_request::read_header(int sock) {
1.84 moko 1065: enum HTTPD_request_state state = HTTPD_METHOD;
1066:
1067: size_t chunk_size = 0x400*4;
1068: resize(chunk_size);
1069:
1070: while(read(sock, chunk_size)){
1071: switch(state){
1072: case HTTPD_METHOD: {
1073: size_t method_size = first_line();
1074: if(!method_size)
1075: break;
1076:
1077: char *method_line = pa_strdup(buf, method_size);
1078: method = extract_method(method_line);
1079:
1.92 moko 1080: if(!method ||
1081: strcmp(method, "GET") &&
1082: strcmp(method, "HEAD") &&
1083: strcmp(method, "POST") &&
1084: strcmp(method, "PUT") &&
1085: strcmp(method, "DELETE") &&
1086: strcmp(method, "PATCH")
1087: )
1.84 moko 1088: throw Exception("httpd.method", new String(method ? method : method_line), "invalid request method");
1089: state = HTTPD_HEADERS;
1090: }
1091:
1092: case HTTPD_HEADERS: {
1093: if(!body_start())
1094: break;
1095:
1096: parse_headers();
1.110 moko 1097: return true;
1.84 moko 1098: }
1099: }
1100: }
1101:
1.111 moko 1102: if(!length){ // browsers open connections in advance and they will be empty unless user requests more pages
1103: LOG(pa_log("httpd [%d] void request", sock));
1.110 moko 1104: return false;
1.111 moko 1105: }
1.110 moko 1106:
1.84 moko 1107: if(state == HTTPD_METHOD)
1108: throw Exception("httpd.request", 0, "bad request from host - no method found (size=%u)", length);
1109:
1110: if(state == HTTPD_HEADERS){
1111: parse_headers();
1112: body_offset=length;
1113: }
1.110 moko 1114:
1115: return true;
1.84 moko 1116: }
1117:
1.87 moko 1118: size_t HTTPD_request::read_post(int sock, char *body, size_t max_bytes) {
1119: size_t total_read = min(length - body_offset, max_bytes);
1.98 moko 1120: memcpy(body, buf + body_offset, total_read);
1.87 moko 1121:
1122: while (total_read < max_bytes){
1.103 moko 1123: ssize_t received_size = pa_recv(sock, body + total_read, max_bytes - total_read);
1.87 moko 1124: if(received_size == 0)
1125: return total_read;
1126: if(received_size < 0) {
1127: if(int no = pa_socks_errno())
1.111 moko 1128: throw Exception("httpd.read", new String(uri), "error receiving request body: %s (%d)", pa_socks_strerr(no), no);
1.87 moko 1129: return total_read;
1130: }
1131: total_read += received_size;
1132: }
1133: return total_read;
1134: }
1135:
1.84 moko 1136: /* ********************************************************** */
1137:
1.85 moko 1138: Array<HTTP_Headers::Header> &HTTPD_Connection::headers() {
1.84 moko 1139: return request->headers.headers;
1140: }
1141:
1142: const char *HTTPD_Connection::method() {
1143: return request->method;
1144: }
1145:
1146: const char *HTTPD_Connection::uri() {
1147: return request->uri;
1148: }
1149:
1150: const char *HTTPD_Connection::content_type() {
1151: return request->headers.content_type.cstr();
1152: }
1153:
1154: uint64_t HTTPD_Connection::content_length(){
1155: return request->headers.content_length;
1156: }
1157:
1.110 moko 1158: bool HTTPD_Connection::read_header(){
1.84 moko 1159: request = new HTTPD_request();
1.111 moko 1160: bool result = request->read_header(sock);
1161: LOG(if(result){
1162: pa_log("httpd [%d] got %s \"%s\"", sock, method(), uri());
1163: })
1164: return result;
1.84 moko 1165: }
1166:
1.87 moko 1167: size_t HTTPD_Connection::read_post(char *body, size_t max_bytes) {
1168: return request->read_post(sock, body, max_bytes);
1169: }
1170:
1.90 moko 1171: size_t HTTPD_Connection::send_body(const void *buf, size_t size) {
1.112 ! moko 1172: LOG(pa_log("httpd [%d] response %d bytes", sock, size));
! 1173: LOG(pa_log("httpd [%d] %s", sock, buf));
1.91 moko 1174: if(send(sock, (const char*)buf, size, 0) != (ssize_t)size) {
1.90 moko 1175: int no=pa_socks_errno();
1.111 moko 1176: throw Exception("httpd.write", 0, "error sending response: %s (%d)", pa_socks_strerr(no), no);
1.90 moko 1177: }
1178: return size;
1179: }
1180:
1.93 moko 1181: HTTPD_Connection::~HTTPD_Connection(){
1.111 moko 1182: if(sock != -1){
1183: LOG(pa_log("httpd [%d] closed", sock));
1.93 moko 1184: closesocket(sock);
1.111 moko 1185: }
1.93 moko 1186: }
1187:
1188: static int sock_ready(int fd,int operation,int timeout_value){
1189: struct timeval timeout = {0, timeout_value * 1000};
1190: fd_set fds;
1191: FD_ZERO(&fds);
1192: FD_SET(fd, &fds);
1193: switch (operation){
1194: case 0: return select(fd + 1, &fds, NULL, NULL, &timeout)>0; /* read */
1195: case 1: return select(fd + 1, NULL, &fds, NULL, &timeout)>0; /* write */
1196: default: return select(fd + 1, &fds, &fds, NULL, &timeout)>0; /* both */
1197: }
1198: }
1199:
1200: bool HTTPD_Connection::accept(int server_sock, int timeout_value) {
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);
1216: if(server_sock == -1){
1217: int no=pa_socks_errno();
1218: throw Exception("httpd.accept", 0, "error accepting connection: %s (%d)", pa_socks_strerr(no), no);
1219: }
1220:
1221: remote_addr = pa_strdup(inet_ntoa(addr.sin_addr));
1.111 moko 1222: LOG(pa_log("httpd [%d] accepted from %s", sock, remote_addr));
1.93 moko 1223: return true;
1224: }
1.84 moko 1225:
1.107 moko 1226: HTTPD_Server::HTTPD_MODE HTTPD_Server::mode = HTTPD_Server::SEQUENTIAL;
1.106 moko 1227:
1.108 moko 1228: void HTTPD_Server::set_mode(const String &value){
1229: if(value == "sequental") mode = SEQUENTIAL;
1230: else if (value == "threaded") mode = MULTITHREADED;
1231: #ifdef _MSC_VER
1232: else throw Exception("httpd.mode", &value, "$main:HTTPD.mode must be 'sequental' or 'threaded'");
1233: #else
1234: else if (value == "parallel") mode = PARALLEL;
1235: else throw Exception("httpd.mode", &value, "$main:HTTPD.mode must be 'sequental', 'parallel' or 'threaded'");
1236: #endif
1237: }
1238:
1.86 moko 1239: int HTTPD_Server::bind(const char *host_port){
1.84 moko 1240: struct sockaddr_in me;
1241:
1.86 moko 1242: const char *port = strchr(host_port, ':');
1243: const char *host = NULL;
1244: if(port && port > host_port){
1245: host = pa_strdup(host_port, port - host_port);
1246: port += 1;
1247: } else {
1248: port = host_port;
1249: }
1250:
1.105 moko 1251: if(!set_addr(&me, host, (short)pa_atoui(port))){
1.84 moko 1252: if (host)
1253: throw Exception("httpd.bind", 0, "can not resolve hostname \"%s\"", host);
1254: me.sin_addr.s_addr=INADDR_ANY;
1255: }
1256:
1257: int sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP/*0*/);
1258:
1259: if(sock < 0){
1260: int no=pa_socks_errno();
1261: throw Exception("httpd.bind", 0, "can not make socket: %s (%d)", pa_socks_strerr(no), no);
1262: }
1263:
1.93 moko 1264: static int sock_on = 1;
1265:
1.84 moko 1266: if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (char *)&sock_on, sizeof(sock_on)) ||
1267: setsockopt(sock, SOL_SOCKET, SO_KEEPALIVE, (char *)&sock_on, sizeof(sock_on)) ||
1268: ::bind(sock, (struct sockaddr*)&me, sizeof(me)) ||
1269: listen(sock, 16)) {
1.89 moko 1270: closesocket(sock);
1.84 moko 1271: int no = pa_socks_errno();
1272: throw Exception("httpd.bind", 0, "can not bind socket: %s (%d)", pa_socks_strerr(no), no);
1273: }
1274: return sock;
1275: }
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