Annotation of libwww/Library/src/HTTPReq.c, revision 2.39
2.1 frystyk 1: /* HTTPReq.c
2.23 frystyk 2: ** HTTP REQUEST GENERATION
2.1 frystyk 3: **
2.32 frystyk 4: ** (c) COPYRIGHT MIT 1995.
5: ** Please first read the full copyright statement in the file COPYRIGH.
2.39 ! frystyk 6: ** @(#) $Id: HTTPReq.c,v 2.38 1996/07/18 03:56:54 frystyk Exp $
2.32 frystyk 7: **
2.1 frystyk 8: ** This module implements the output stream for HTTP used for sending
9: ** requests with or without a entity body.
10: **
11: ** History:
12: ** Jan 95 HFN Written from scratch
13: */
14:
15: /* Library Includes */
2.29 frystyk 16: #include "sysdep.h"
2.28 frystyk 17: #include "WWWUtil.h"
2.32 frystyk 18: #include "WWWCore.h"
19:
2.23 frystyk 20: #include "HTTPGen.h"
2.21 frystyk 21: #include "HTTPUtil.h"
2.1 frystyk 22: #include "HTTPReq.h" /* Implements */
23:
2.24 frystyk 24: #define PUTC(c) (*me->target->isa->put_character)(me->target, c)
25: #define PUTS(s) (*me->target->isa->put_string)(me->target, s)
2.1 frystyk 26: #define PUTBLOCK(b, l) (*me->target->isa->put_block)(me->target, b, l)
27:
28: struct _HTStream {
2.29 frystyk 29: const HTStreamClass * isa;
2.1 frystyk 30: HTStream * target;
31: HTRequest * request;
2.18 frystyk 32: SOCKET sockfd;
2.11 frystyk 33: int version;
2.38 frystyk 34: int state;
35: char * url;
2.1 frystyk 36: BOOL transparent;
37: };
38:
39: /* ------------------------------------------------------------------------- */
40: /* HTTP Output Request Stream */
41: /* ------------------------------------------------------------------------- */
42:
2.11 frystyk 43: /* HTTP09Request
44: ** -------------
45: ** Makes a HTTP/0.9 request
2.1 frystyk 46: */
2.38 frystyk 47: PRIVATE int HTTP09Request (HTStream * me, HTRequest * request)
2.11 frystyk 48: {
2.34 frystyk 49: HTParentAnchor * anchor = HTRequest_anchor(request);
50: char * addr = HTAnchor_physical(anchor);
2.38 frystyk 51: if (!me->url) me->url = HTParse(addr, "", PARSE_PATH|PARSE_PUNCTUATION);
52: if (me->state == 0) {
53: PUTS("GET ");
54: me->state++;
55: }
56: if (me->state == 1) {
57: int status = PUTS(me->url);
58: if (status != HT_OK) return status;
59: me->state++;
60: }
2.24 frystyk 61: PUTC(CR);
62: PUTC(LF);
2.38 frystyk 63: return HT_OK;
2.11 frystyk 64: }
65:
66: /* HTTPMakeRequest
67: ** ---------------
68: ** Makes a HTTP/1.0-1.1 request header.
69: */
2.38 frystyk 70: PRIVATE int HTTPMakeRequest (HTStream * me, HTRequest * request)
2.1 frystyk 71: {
2.39 ! frystyk 72: HTMethod method = HTRequest_method(request);
! 73: HTRqHd request_mask = HTRequest_rqHd(request);
! 74: HTParentAnchor * anchor = HTRequest_anchor(request);
2.24 frystyk 75: char crlf[3];
76: char qstr[10];
77: *crlf = CR; *(crlf+1) = LF; *(crlf+2) = '\0';
2.1 frystyk 78:
79: /* Generate the HTTP/1.0 RequestLine */
2.38 frystyk 80: if (me->state == 0) {
2.34 frystyk 81: if (method != METHOD_INVALID) {
82: PUTS(HTMethod_name(method));
83: PUTC(' ');
84: } else
85: PUTS("GET ");
2.38 frystyk 86: me->state++;
2.34 frystyk 87: }
2.1 frystyk 88:
2.39 ! frystyk 89: /*
! 90: ** Generate the Request URI. If we are using full request URI then it's
! 91: ** easy. Otherwise we must filter out the path part of the URI.
! 92: ** In case it's a OPTIONS request then if there is no pathinfo then use
! 93: ** a * instead.
! 94: */
! 95: if (me->state == 1) {
2.38 frystyk 96: char * addr = HTAnchor_physical(anchor);
2.39 ! frystyk 97: int status = HT_OK;
2.35 frystyk 98: if (HTRequest_fullURI(request)) {
2.39 ! frystyk 99: me->url = addr;
! 100: status = PUTS(me->url);
2.1 frystyk 101: } else {
2.39 ! frystyk 102: if (method == METHOD_OPTIONS) {
! 103: /*
! 104: ** We don't preserve the final slash or lack of same through
! 105: ** out the code. This is mainly for optimization reasons
! 106: ** but it gives a problem OPTIONS
! 107: */
! 108: if (!me->url) me->url = HTParse(addr, "", PARSE_PATH);
! 109: if (!*me->url) StrAllocCopy(me->url, "*");
! 110: status = PUTS(me->url);
! 111: } else {
! 112: if (!me->url)
! 113: me->url = HTParse(addr, "", PARSE_PATH|PARSE_PUNCTUATION);
! 114: status = PUTS(me->url);
! 115: }
2.1 frystyk 116: }
2.38 frystyk 117: if (status != HT_OK) return status;
118: me->state++;
2.1 frystyk 119: }
2.25 frystyk 120: PUTC(' ');
121: PUTS(HTTP_VERSION);
2.24 frystyk 122: PUTBLOCK(crlf, 2);
2.1 frystyk 123:
2.4 frystyk 124: /* Request Headers */
2.34 frystyk 125: if (request_mask & HT_C_ACCEPT_TYPE) {
2.37 frystyk 126: /*
127: ** If caller has specified a specific output format then use this.
128: ** Otherwise use all the registered converters to generate the
129: ** accept header
130: */
131: if (HTRequest_outputFormat(request) == WWW_PRESENT) {
132: int list;
133: HTList *cur;
134: BOOL first=YES;
135: for (list=0; list<2; list++) {
136: if ((!list && ((cur = HTFormat_conversion()) != NULL)) ||
137: (list && ((cur = HTRequest_conversion(request))!=NULL))) {
138: HTPresentation * pres;
139: while ((pres=(HTPresentation *) HTList_nextObject(cur))) {
140: if (pres->rep_out==WWW_PRESENT && pres->quality<=1.0) {
141: if (first) {
142: PUTS("Accept: ");
143: first=NO;
144: } else
145: PUTC(',');
146: PUTS(HTAtom_name(pres->rep));
147: if (pres->quality != 1.0) {
148: sprintf(qstr, ";q=%1.1f", pres->quality);
149: PUTS(qstr);
150: }
2.1 frystyk 151: }
152: }
153: }
154: }
2.37 frystyk 155: if (!first) PUTBLOCK(crlf, 2);
156: } else {
157: PUTS("Accept: ");
158: PUTS(HTAtom_name(HTRequest_outputFormat(request)));
159: PUTBLOCK(crlf, 2);
160: }
2.1 frystyk 161: }
2.34 frystyk 162: if (request_mask & HT_C_ACCEPT_CHAR) {
2.4 frystyk 163: int list;
164: HTList *cur;
2.24 frystyk 165: BOOL first=YES;
2.4 frystyk 166: for (list=0; list<2; list++) {
2.14 frystyk 167: if ((!list && ((cur = HTFormat_charset()) != NULL)) ||
168: (list && ((cur = HTRequest_charset(request)) != NULL))) {
2.4 frystyk 169: HTAcceptNode *pres;
170: while ((pres = (HTAcceptNode *) HTList_nextObject(cur))) {
2.5 frystyk 171: if (first) {
2.24 frystyk 172: PUTS("Accept-Charset: ");
2.5 frystyk 173: first=NO;
2.24 frystyk 174: } else
175: PUTC(',');
176: PUTS(HTAtom_name(pres->atom));
2.4 frystyk 177: }
178: }
179: }
2.31 frystyk 180: if (!first) PUTBLOCK(crlf, 2);
2.4 frystyk 181: }
2.34 frystyk 182: if (request_mask & HT_C_ACCEPT_ENC) {
2.4 frystyk 183: int list;
184: HTList *cur;
2.24 frystyk 185: BOOL first=YES;
2.4 frystyk 186: for (list=0; list<2; list++) {
2.33 frystyk 187: if ((!list && ((cur = HTFormat_contentCoding()) != NULL)) ||
2.14 frystyk 188: (list && ((cur = HTRequest_encoding(request)) != NULL))) {
2.33 frystyk 189: HTCoding * pres;
190: while ((pres = (HTCoding *) HTList_nextObject(cur))) {
2.5 frystyk 191: if (first) {
2.24 frystyk 192: PUTS("Accept-Encoding: ");
2.32 frystyk 193: first = NO;
2.24 frystyk 194: } else
195: PUTC(',');
2.33 frystyk 196: PUTS(HTCoding_name(pres));
2.4 frystyk 197: }
198: }
199: }
2.31 frystyk 200: if (!first) PUTBLOCK(crlf, 2);
2.4 frystyk 201: }
2.34 frystyk 202: if (request_mask & HT_C_ACCEPT_LAN) {
2.4 frystyk 203: int list;
204: HTList *cur;
2.24 frystyk 205: BOOL first=YES;
2.4 frystyk 206: for (list=0; list<2; list++) {
2.14 frystyk 207: if ((!list && ((cur = HTFormat_language()) != NULL)) ||
208: (list && ((cur = HTRequest_language(request)) != NULL))) {
2.4 frystyk 209: HTAcceptNode *pres;
210: while ((pres = (HTAcceptNode *) HTList_nextObject(cur))) {
2.5 frystyk 211: if (first) {
2.24 frystyk 212: PUTS("Accept-Language: ");
2.5 frystyk 213: first=NO;
2.24 frystyk 214: } else
215: PUTC(',');
216: PUTS(HTAtom_name(pres->atom));
217: if (pres->quality != 1.0) {
218: sprintf(qstr, ";q=%1.1f", pres->quality);
219: PUTS(qstr);
2.5 frystyk 220: }
2.4 frystyk 221: }
222: }
223: }
2.31 frystyk 224: if (!first) PUTBLOCK(crlf, 2);
2.4 frystyk 225: }
2.36 frystyk 226: if (request_mask & HT_C_AUTH) {
2.34 frystyk 227: HTAssocList * cur = HTRequest_credentials(request);
228: if (cur) { /* Access authentication */
229: HTAssoc * pres;
230: while ((pres = (HTAssoc *) HTAssocList_nextObject(cur))) {
231: PUTS(HTAssoc_name(pres));
232: PUTS(": ");
233: PUTS(HTAssoc_value(pres));
234: PUTBLOCK(crlf, 2);
235: }
2.28 frystyk 236: }
2.1 frystyk 237: }
2.34 frystyk 238: if (request_mask & HT_C_FROM) {
239: HTUserProfile * up = HTRequest_userProfile(request);
240: const char * mailaddress = HTUserProfile_email(up);
2.1 frystyk 241: if (mailaddress) {
2.24 frystyk 242: PUTS("From: ");
243: PUTS(mailaddress);
244: PUTBLOCK(crlf, 2);
2.1 frystyk 245: }
246: }
2.34 frystyk 247: if (request_mask & HT_C_IMS) {
2.21 frystyk 248: time_t lm = HTAnchor_lastModified(anchor);
2.24 frystyk 249: if (lm > 0) {
250: PUTS("If-Modified-Since: ");
251: PUTS(HTDateTimeStr(&lm, NO));
252: PUTBLOCK(crlf, 2);
2.8 frystyk 253: }
254: }
2.34 frystyk 255: if (request_mask & HT_C_HOST) {
2.13 frystyk 256: char *orig = HTAnchor_address((HTAnchor *) anchor);
2.12 frystyk 257: char *host = HTParse(orig, "", PARSE_HOST);
2.34 frystyk 258: #if 0
259: /* Keep the port number for HTTP/1.1 compliance */
2.12 frystyk 260: char *ptr = strchr(host, ':'); /* Chop off port number */
261: if (ptr) *ptr = '\0';
2.34 frystyk 262: #endif
2.24 frystyk 263: PUTS("Host: ");
264: PUTS(host);
265: PUTBLOCK(crlf, 2);
2.26 frystyk 266: HT_FREE(orig);
267: HT_FREE(host);
2.39 ! frystyk 268: }
! 269: if (request_mask & HT_C_MAX_FORWARDS) {
! 270: int hops = HTRequest_maxForwards(request);
! 271: if (hops >= 0) {
! 272: sprintf(qstr, "%d", hops);
! 273: PUTS("Max-Forwards: ");
! 274: PUTS(qstr);
! 275: PUTBLOCK(crlf, 2);
! 276: }
2.1 frystyk 277: }
2.34 frystyk 278: if (request_mask & HT_C_REFERER) {
279: HTParentAnchor * parent_anchor = HTRequest_parent(request);
280: if (parent_anchor) {
281: char * act = HTAnchor_address((HTAnchor *) anchor);
282: char * parent = HTAnchor_address((HTAnchor *) parent_anchor);
283: char * relative = HTParse(parent, act,
284: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
285: if (relative && *relative) {
286: PUTS("Referer: ");
287: PUTS(parent);
288: PUTBLOCK(crlf, 2);
289: }
290: HT_FREE(act);
291: HT_FREE(parent);
292: HT_FREE(relative);
2.1 frystyk 293: }
294: }
2.34 frystyk 295: if (request_mask & HT_C_USER_AGENT) {
2.24 frystyk 296: PUTS("User-Agent: ");
297: PUTS(HTLib_appName());
298: PUTC('/');
299: PUTS(HTLib_appVersion());
300: PUTC(' ');
301: PUTS(HTLib_name());
302: PUTC('/');
303: PUTS(HTLib_version());
304: PUTBLOCK(crlf, 2);
2.1 frystyk 305: }
2.27 eric 306: if (PROT_TRACE)HTTrace("HTTP........ Generating Request Headers\n");
2.38 frystyk 307: return HT_OK;
2.1 frystyk 308: }
309:
2.29 frystyk 310: PRIVATE int HTTPRequest_put_block (HTStream * me, const char * b, int l)
2.1 frystyk 311: {
2.7 frystyk 312: if (!me->target) {
2.1 frystyk 313: return HT_WOULD_BLOCK;
2.7 frystyk 314: } else if (me->transparent)
2.11 frystyk 315: return b ? PUTBLOCK(b, l) : HT_OK;
2.1 frystyk 316: else {
2.38 frystyk 317: int status = HT_OK;
318: if (me->version == HTTP_09) {
319: status = HTTP09Request(me, me->request);
320: if (status != HT_OK) return status;
321: } else {
322: status = HTTPMakeRequest(me, me->request);
323: if (status != HT_OK) return status;
2.1 frystyk 324: me->transparent = YES;
2.11 frystyk 325: return b ? PUTBLOCK(b, l) : HT_OK;
2.1 frystyk 326: }
327: return status;
328: }
329: }
330:
2.16 frystyk 331: PRIVATE int HTTPRequest_put_character (HTStream * me, char c)
2.1 frystyk 332: {
2.11 frystyk 333: return HTTPRequest_put_block(me, &c, 1);
2.1 frystyk 334: }
335:
2.29 frystyk 336: PRIVATE int HTTPRequest_put_string (HTStream * me, const char * s)
2.1 frystyk 337: {
2.11 frystyk 338: return HTTPRequest_put_block(me, s, strlen(s));
2.1 frystyk 339: }
340:
341: /*
342: ** Flushes data but doesn't free stream object
343: */
2.16 frystyk 344: PRIVATE int HTTPRequest_flush (HTStream * me)
2.1 frystyk 345: {
2.13 frystyk 346: int status = HTTPRequest_put_block(me, NULL, 0);
347: return status==HT_OK ? (*me->target->isa->flush)(me->target) : status;
2.1 frystyk 348: }
349:
350: /*
351: ** Flushes data and frees stream object
352: */
2.16 frystyk 353: PRIVATE int HTTPRequest_free (HTStream * me)
2.1 frystyk 354: {
2.11 frystyk 355: int status = HTTPRequest_flush(me);
356: if (status != HT_WOULD_BLOCK) {
357: if ((status = (*me->target->isa->_free)(me->target)) == HT_WOULD_BLOCK)
358: return HT_WOULD_BLOCK;
2.38 frystyk 359: HT_FREE(me->url);
2.26 frystyk 360: HT_FREE(me);
2.1 frystyk 361: }
2.7 frystyk 362: return status;
2.1 frystyk 363: }
364:
2.16 frystyk 365: PRIVATE int HTTPRequest_abort (HTStream * me, HTList * e)
2.1 frystyk 366: {
2.13 frystyk 367: if (me->target) (*me->target->isa->abort)(me->target, e);
2.38 frystyk 368: HT_FREE(me->url);
2.26 frystyk 369: HT_FREE(me);
2.27 eric 370: if (PROT_TRACE) HTTrace("HTTPRequest. ABORTING...\n");
2.1 frystyk 371: return HT_ERROR;
372: }
373:
374: /* HTTPRequest Stream
375: ** -----------------
376: */
2.29 frystyk 377: PRIVATE const HTStreamClass HTTPRequestClass =
2.1 frystyk 378: {
379: "HTTPRequest",
380: HTTPRequest_flush,
381: HTTPRequest_free,
382: HTTPRequest_abort,
383: HTTPRequest_put_character,
384: HTTPRequest_put_string,
385: HTTPRequest_put_block
386: };
387:
2.23 frystyk 388: PUBLIC HTStream * HTTPRequest_new (HTRequest * request, HTStream * target,
389: BOOL endHeader)
2.1 frystyk 390: {
2.34 frystyk 391: HTNet * net = HTRequest_net(request);
392: HTHost * host = HTNet_host(net);
2.26 frystyk 393: HTStream * me;
394: if ((me = (HTStream *) HT_CALLOC(1, sizeof(HTStream))) == NULL)
395: HT_OUTOFMEM("HTTPRequest_new");
2.1 frystyk 396: me->isa = &HTTPRequestClass;
397: me->target = target;
398: me->request = request;
2.32 frystyk 399: me->version = HTHost_version(host);
2.1 frystyk 400: me->transparent = NO;
2.23 frystyk 401:
402: /* Return general HTTP header stream */
403: return HTTPGen_new(request, me, endHeader);
2.1 frystyk 404: }
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