Annotation of libwww/Library/src/HTTPReq.c, revision 2.40
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.
2.40 ! frystyk 6: ** @(#) $Id: HTTPReq.c,v 2.39 1996/08/09 14:10:59 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)) {
2.40 ! frystyk 99: status = PUTS(addr);
2.1 frystyk 100: } else {
2.39 frystyk 101: if (method == METHOD_OPTIONS) {
102: /*
103: ** We don't preserve the final slash or lack of same through
104: ** out the code. This is mainly for optimization reasons
105: ** but it gives a problem OPTIONS
106: */
107: if (!me->url) me->url = HTParse(addr, "", PARSE_PATH);
108: if (!*me->url) StrAllocCopy(me->url, "*");
109: status = PUTS(me->url);
110: } else {
111: if (!me->url)
112: me->url = HTParse(addr, "", PARSE_PATH|PARSE_PUNCTUATION);
113: status = PUTS(me->url);
114: }
2.1 frystyk 115: }
2.38 frystyk 116: if (status != HT_OK) return status;
117: me->state++;
2.1 frystyk 118: }
2.25 frystyk 119: PUTC(' ');
120: PUTS(HTTP_VERSION);
2.24 frystyk 121: PUTBLOCK(crlf, 2);
2.1 frystyk 122:
2.4 frystyk 123: /* Request Headers */
2.34 frystyk 124: if (request_mask & HT_C_ACCEPT_TYPE) {
2.37 frystyk 125: /*
126: ** If caller has specified a specific output format then use this.
127: ** Otherwise use all the registered converters to generate the
128: ** accept header
129: */
130: if (HTRequest_outputFormat(request) == WWW_PRESENT) {
131: int list;
132: HTList *cur;
133: BOOL first=YES;
134: for (list=0; list<2; list++) {
135: if ((!list && ((cur = HTFormat_conversion()) != NULL)) ||
136: (list && ((cur = HTRequest_conversion(request))!=NULL))) {
137: HTPresentation * pres;
138: while ((pres=(HTPresentation *) HTList_nextObject(cur))) {
139: if (pres->rep_out==WWW_PRESENT && pres->quality<=1.0) {
140: if (first) {
141: PUTS("Accept: ");
142: first=NO;
143: } else
144: PUTC(',');
145: PUTS(HTAtom_name(pres->rep));
146: if (pres->quality != 1.0) {
147: sprintf(qstr, ";q=%1.1f", pres->quality);
148: PUTS(qstr);
149: }
2.1 frystyk 150: }
151: }
152: }
153: }
2.37 frystyk 154: if (!first) PUTBLOCK(crlf, 2);
155: } else {
156: PUTS("Accept: ");
157: PUTS(HTAtom_name(HTRequest_outputFormat(request)));
158: PUTBLOCK(crlf, 2);
159: }
2.1 frystyk 160: }
2.34 frystyk 161: if (request_mask & HT_C_ACCEPT_CHAR) {
2.4 frystyk 162: int list;
163: HTList *cur;
2.24 frystyk 164: BOOL first=YES;
2.4 frystyk 165: for (list=0; list<2; list++) {
2.14 frystyk 166: if ((!list && ((cur = HTFormat_charset()) != NULL)) ||
167: (list && ((cur = HTRequest_charset(request)) != NULL))) {
2.4 frystyk 168: HTAcceptNode *pres;
169: while ((pres = (HTAcceptNode *) HTList_nextObject(cur))) {
2.5 frystyk 170: if (first) {
2.24 frystyk 171: PUTS("Accept-Charset: ");
2.5 frystyk 172: first=NO;
2.24 frystyk 173: } else
174: PUTC(',');
175: PUTS(HTAtom_name(pres->atom));
2.4 frystyk 176: }
177: }
178: }
2.31 frystyk 179: if (!first) PUTBLOCK(crlf, 2);
2.4 frystyk 180: }
2.34 frystyk 181: if (request_mask & HT_C_ACCEPT_ENC) {
2.4 frystyk 182: int list;
183: HTList *cur;
2.24 frystyk 184: BOOL first=YES;
2.4 frystyk 185: for (list=0; list<2; list++) {
2.33 frystyk 186: if ((!list && ((cur = HTFormat_contentCoding()) != NULL)) ||
2.14 frystyk 187: (list && ((cur = HTRequest_encoding(request)) != NULL))) {
2.33 frystyk 188: HTCoding * pres;
189: while ((pres = (HTCoding *) HTList_nextObject(cur))) {
2.5 frystyk 190: if (first) {
2.24 frystyk 191: PUTS("Accept-Encoding: ");
2.32 frystyk 192: first = NO;
2.24 frystyk 193: } else
194: PUTC(',');
2.33 frystyk 195: PUTS(HTCoding_name(pres));
2.4 frystyk 196: }
197: }
198: }
2.31 frystyk 199: if (!first) PUTBLOCK(crlf, 2);
2.4 frystyk 200: }
2.34 frystyk 201: if (request_mask & HT_C_ACCEPT_LAN) {
2.4 frystyk 202: int list;
203: HTList *cur;
2.24 frystyk 204: BOOL first=YES;
2.4 frystyk 205: for (list=0; list<2; list++) {
2.14 frystyk 206: if ((!list && ((cur = HTFormat_language()) != NULL)) ||
207: (list && ((cur = HTRequest_language(request)) != NULL))) {
2.4 frystyk 208: HTAcceptNode *pres;
209: while ((pres = (HTAcceptNode *) HTList_nextObject(cur))) {
2.5 frystyk 210: if (first) {
2.24 frystyk 211: PUTS("Accept-Language: ");
2.5 frystyk 212: first=NO;
2.24 frystyk 213: } else
214: PUTC(',');
215: PUTS(HTAtom_name(pres->atom));
216: if (pres->quality != 1.0) {
217: sprintf(qstr, ";q=%1.1f", pres->quality);
218: PUTS(qstr);
2.5 frystyk 219: }
2.4 frystyk 220: }
221: }
222: }
2.31 frystyk 223: if (!first) PUTBLOCK(crlf, 2);
2.4 frystyk 224: }
2.36 frystyk 225: if (request_mask & HT_C_AUTH) {
2.34 frystyk 226: HTAssocList * cur = HTRequest_credentials(request);
227: if (cur) { /* Access authentication */
228: HTAssoc * pres;
229: while ((pres = (HTAssoc *) HTAssocList_nextObject(cur))) {
230: PUTS(HTAssoc_name(pres));
231: PUTS(": ");
232: PUTS(HTAssoc_value(pres));
233: PUTBLOCK(crlf, 2);
234: }
2.28 frystyk 235: }
2.1 frystyk 236: }
2.34 frystyk 237: if (request_mask & HT_C_FROM) {
238: HTUserProfile * up = HTRequest_userProfile(request);
239: const char * mailaddress = HTUserProfile_email(up);
2.1 frystyk 240: if (mailaddress) {
2.24 frystyk 241: PUTS("From: ");
242: PUTS(mailaddress);
243: PUTBLOCK(crlf, 2);
2.1 frystyk 244: }
245: }
2.34 frystyk 246: if (request_mask & HT_C_IMS) {
2.21 frystyk 247: time_t lm = HTAnchor_lastModified(anchor);
2.24 frystyk 248: if (lm > 0) {
249: PUTS("If-Modified-Since: ");
250: PUTS(HTDateTimeStr(&lm, NO));
251: PUTBLOCK(crlf, 2);
2.8 frystyk 252: }
253: }
2.34 frystyk 254: if (request_mask & HT_C_HOST) {
2.13 frystyk 255: char *orig = HTAnchor_address((HTAnchor *) anchor);
2.12 frystyk 256: char *host = HTParse(orig, "", PARSE_HOST);
2.34 frystyk 257: #if 0
258: /* Keep the port number for HTTP/1.1 compliance */
2.12 frystyk 259: char *ptr = strchr(host, ':'); /* Chop off port number */
260: if (ptr) *ptr = '\0';
2.34 frystyk 261: #endif
2.24 frystyk 262: PUTS("Host: ");
263: PUTS(host);
264: PUTBLOCK(crlf, 2);
2.26 frystyk 265: HT_FREE(orig);
266: HT_FREE(host);
2.39 frystyk 267: }
268: if (request_mask & HT_C_MAX_FORWARDS) {
269: int hops = HTRequest_maxForwards(request);
270: if (hops >= 0) {
271: sprintf(qstr, "%d", hops);
272: PUTS("Max-Forwards: ");
273: PUTS(qstr);
274: PUTBLOCK(crlf, 2);
275: }
2.1 frystyk 276: }
2.34 frystyk 277: if (request_mask & HT_C_REFERER) {
278: HTParentAnchor * parent_anchor = HTRequest_parent(request);
279: if (parent_anchor) {
280: char * act = HTAnchor_address((HTAnchor *) anchor);
281: char * parent = HTAnchor_address((HTAnchor *) parent_anchor);
282: char * relative = HTParse(parent, act,
283: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
284: if (relative && *relative) {
285: PUTS("Referer: ");
286: PUTS(parent);
287: PUTBLOCK(crlf, 2);
288: }
289: HT_FREE(act);
290: HT_FREE(parent);
291: HT_FREE(relative);
2.1 frystyk 292: }
293: }
2.34 frystyk 294: if (request_mask & HT_C_USER_AGENT) {
2.24 frystyk 295: PUTS("User-Agent: ");
296: PUTS(HTLib_appName());
297: PUTC('/');
298: PUTS(HTLib_appVersion());
299: PUTC(' ');
300: PUTS(HTLib_name());
301: PUTC('/');
302: PUTS(HTLib_version());
303: PUTBLOCK(crlf, 2);
2.1 frystyk 304: }
2.27 eric 305: if (PROT_TRACE)HTTrace("HTTP........ Generating Request Headers\n");
2.38 frystyk 306: return HT_OK;
2.1 frystyk 307: }
308:
2.29 frystyk 309: PRIVATE int HTTPRequest_put_block (HTStream * me, const char * b, int l)
2.1 frystyk 310: {
2.7 frystyk 311: if (!me->target) {
2.1 frystyk 312: return HT_WOULD_BLOCK;
2.7 frystyk 313: } else if (me->transparent)
2.11 frystyk 314: return b ? PUTBLOCK(b, l) : HT_OK;
2.1 frystyk 315: else {
2.38 frystyk 316: int status = HT_OK;
317: if (me->version == HTTP_09) {
318: status = HTTP09Request(me, me->request);
319: if (status != HT_OK) return status;
320: } else {
321: status = HTTPMakeRequest(me, me->request);
322: if (status != HT_OK) return status;
2.1 frystyk 323: me->transparent = YES;
2.11 frystyk 324: return b ? PUTBLOCK(b, l) : HT_OK;
2.1 frystyk 325: }
326: return status;
327: }
328: }
329:
2.16 frystyk 330: PRIVATE int HTTPRequest_put_character (HTStream * me, char c)
2.1 frystyk 331: {
2.11 frystyk 332: return HTTPRequest_put_block(me, &c, 1);
2.1 frystyk 333: }
334:
2.29 frystyk 335: PRIVATE int HTTPRequest_put_string (HTStream * me, const char * s)
2.1 frystyk 336: {
2.11 frystyk 337: return HTTPRequest_put_block(me, s, strlen(s));
2.1 frystyk 338: }
339:
340: /*
341: ** Flushes data but doesn't free stream object
342: */
2.16 frystyk 343: PRIVATE int HTTPRequest_flush (HTStream * me)
2.1 frystyk 344: {
2.13 frystyk 345: int status = HTTPRequest_put_block(me, NULL, 0);
346: return status==HT_OK ? (*me->target->isa->flush)(me->target) : status;
2.1 frystyk 347: }
348:
349: /*
350: ** Flushes data and frees stream object
351: */
2.16 frystyk 352: PRIVATE int HTTPRequest_free (HTStream * me)
2.1 frystyk 353: {
2.11 frystyk 354: int status = HTTPRequest_flush(me);
355: if (status != HT_WOULD_BLOCK) {
356: if ((status = (*me->target->isa->_free)(me->target)) == HT_WOULD_BLOCK)
357: return HT_WOULD_BLOCK;
2.38 frystyk 358: HT_FREE(me->url);
2.26 frystyk 359: HT_FREE(me);
2.1 frystyk 360: }
2.7 frystyk 361: return status;
2.1 frystyk 362: }
363:
2.16 frystyk 364: PRIVATE int HTTPRequest_abort (HTStream * me, HTList * e)
2.1 frystyk 365: {
2.13 frystyk 366: if (me->target) (*me->target->isa->abort)(me->target, e);
2.38 frystyk 367: HT_FREE(me->url);
2.26 frystyk 368: HT_FREE(me);
2.27 eric 369: if (PROT_TRACE) HTTrace("HTTPRequest. ABORTING...\n");
2.1 frystyk 370: return HT_ERROR;
371: }
372:
373: /* HTTPRequest Stream
374: ** -----------------
375: */
2.29 frystyk 376: PRIVATE const HTStreamClass HTTPRequestClass =
2.1 frystyk 377: {
378: "HTTPRequest",
379: HTTPRequest_flush,
380: HTTPRequest_free,
381: HTTPRequest_abort,
382: HTTPRequest_put_character,
383: HTTPRequest_put_string,
384: HTTPRequest_put_block
385: };
386:
2.23 frystyk 387: PUBLIC HTStream * HTTPRequest_new (HTRequest * request, HTStream * target,
388: BOOL endHeader)
2.1 frystyk 389: {
2.34 frystyk 390: HTNet * net = HTRequest_net(request);
391: HTHost * host = HTNet_host(net);
2.26 frystyk 392: HTStream * me;
393: if ((me = (HTStream *) HT_CALLOC(1, sizeof(HTStream))) == NULL)
394: HT_OUTOFMEM("HTTPRequest_new");
2.1 frystyk 395: me->isa = &HTTPRequestClass;
396: me->target = target;
397: me->request = request;
2.32 frystyk 398: me->version = HTHost_version(host);
2.1 frystyk 399: me->transparent = NO;
2.23 frystyk 400:
401: /* Return general HTTP header stream */
402: return HTTPGen_new(request, me, endHeader);
2.1 frystyk 403: }
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