Annotation of libwww/Library/src/HTTPReq.c, revision 2.36
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.
2.36 ! frystyk 6: ** @(#) $Id: HTTPReq.c,v 2.35 1996/05/20 17:56:47 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;
2.1 frystyk 34: BOOL transparent;
35: };
36:
37: /* ------------------------------------------------------------------------- */
38: /* HTTP Output Request Stream */
39: /* ------------------------------------------------------------------------- */
40:
2.11 frystyk 41: /* HTTP09Request
42: ** -------------
43: ** Makes a HTTP/0.9 request
2.1 frystyk 44: */
2.11 frystyk 45: PRIVATE void HTTP09Request (HTStream * me, HTRequest * request)
46: {
2.34 frystyk 47: HTParentAnchor * anchor = HTRequest_anchor(request);
48: char * addr = HTAnchor_physical(anchor);
49: char * fullurl = HTParse(addr, "", PARSE_PATH|PARSE_PUNCTUATION);
2.24 frystyk 50: PUTS("GET ");
51: PUTS(fullurl);
52: PUTC(CR);
53: PUTC(LF);
2.11 frystyk 54: }
55:
56: /* HTTPMakeRequest
57: ** ---------------
58: ** Makes a HTTP/1.0-1.1 request header.
59: */
60: PRIVATE void HTTPMakeRequest (HTStream * me, HTRequest * request)
2.1 frystyk 61: {
2.24 frystyk 62: char crlf[3];
63: char qstr[10];
2.34 frystyk 64: HTRqHd request_mask = HTRequest_rqHd(request);
65: HTParentAnchor * anchor = HTRequest_anchor(request);
2.24 frystyk 66: *crlf = CR; *(crlf+1) = LF; *(crlf+2) = '\0';
2.1 frystyk 67:
68: /* Generate the HTTP/1.0 RequestLine */
2.34 frystyk 69: {
70: HTMethod method = HTRequest_method(request);
71: if (method != METHOD_INVALID) {
72: PUTS(HTMethod_name(method));
73: PUTC(' ');
74: } else
75: PUTS("GET ");
76: }
2.1 frystyk 77:
78: /* If we are using a proxy then only take the `path' info in the URL */
79: {
2.13 frystyk 80: char *addr = HTAnchor_physical(anchor);
2.6 frystyk 81: char *fullurl = HTParse(addr, "", PARSE_PATH|PARSE_PUNCTUATION);
2.35 frystyk 82: if (HTRequest_fullURI(request)) {
2.24 frystyk 83: PUTS(fullurl+1);
2.1 frystyk 84: } else {
2.24 frystyk 85: PUTS(fullurl);
2.1 frystyk 86: }
2.26 frystyk 87: HT_FREE(fullurl);
2.1 frystyk 88: }
2.25 frystyk 89: PUTC(' ');
90: PUTS(HTTP_VERSION);
2.24 frystyk 91: PUTBLOCK(crlf, 2);
2.1 frystyk 92:
2.4 frystyk 93: /* Request Headers */
2.34 frystyk 94: if (request_mask & HT_C_ACCEPT_TYPE) {
2.1 frystyk 95: int list;
96: HTList *cur;
2.24 frystyk 97: BOOL first=YES;
2.1 frystyk 98: for (list=0; list<2; list++) {
2.14 frystyk 99: if ((!list && ((cur = HTFormat_conversion()) != NULL)) ||
100: (list && ((cur = HTRequest_conversion(request)) != NULL))) {
2.4 frystyk 101: HTPresentation *pres;
2.24 frystyk 102: while ((pres = (HTPresentation *) HTList_nextObject(cur))) {
2.19 frystyk 103: if (pres->rep_out==WWW_PRESENT && pres->quality <= 1.0) {
2.24 frystyk 104: if (first) {
105: PUTS("Accept: ");
106: first=NO;
107: } else
108: PUTC(',');
109: PUTS(HTAtom_name(pres->rep));
2.1 frystyk 110: if (pres->quality != 1.0) {
2.24 frystyk 111: sprintf(qstr, ";q=%1.1f", pres->quality);
112: PUTS(qstr);
2.1 frystyk 113: }
114: }
115: }
116: }
117: }
2.31 frystyk 118: if (!first) PUTBLOCK(crlf, 2);
2.1 frystyk 119: }
2.34 frystyk 120: if (request_mask & HT_C_ACCEPT_CHAR) {
2.4 frystyk 121: int list;
122: HTList *cur;
2.24 frystyk 123: BOOL first=YES;
2.4 frystyk 124: for (list=0; list<2; list++) {
2.14 frystyk 125: if ((!list && ((cur = HTFormat_charset()) != NULL)) ||
126: (list && ((cur = HTRequest_charset(request)) != NULL))) {
2.4 frystyk 127: HTAcceptNode *pres;
128: while ((pres = (HTAcceptNode *) HTList_nextObject(cur))) {
2.5 frystyk 129: if (first) {
2.24 frystyk 130: PUTS("Accept-Charset: ");
2.5 frystyk 131: first=NO;
2.24 frystyk 132: } else
133: PUTC(',');
134: PUTS(HTAtom_name(pres->atom));
2.4 frystyk 135: }
136: }
137: }
2.31 frystyk 138: if (!first) PUTBLOCK(crlf, 2);
2.4 frystyk 139: }
2.34 frystyk 140: if (request_mask & HT_C_ACCEPT_ENC) {
2.4 frystyk 141: int list;
142: HTList *cur;
2.24 frystyk 143: BOOL first=YES;
2.4 frystyk 144: for (list=0; list<2; list++) {
2.33 frystyk 145: if ((!list && ((cur = HTFormat_contentCoding()) != NULL)) ||
2.14 frystyk 146: (list && ((cur = HTRequest_encoding(request)) != NULL))) {
2.33 frystyk 147: HTCoding * pres;
148: while ((pres = (HTCoding *) HTList_nextObject(cur))) {
2.5 frystyk 149: if (first) {
2.24 frystyk 150: PUTS("Accept-Encoding: ");
2.32 frystyk 151: first = NO;
2.24 frystyk 152: } else
153: PUTC(',');
2.33 frystyk 154: PUTS(HTCoding_name(pres));
2.4 frystyk 155: }
156: }
157: }
2.31 frystyk 158: if (!first) PUTBLOCK(crlf, 2);
2.4 frystyk 159: }
2.34 frystyk 160: if (request_mask & HT_C_ACCEPT_LAN) {
2.4 frystyk 161: int list;
162: HTList *cur;
2.24 frystyk 163: BOOL first=YES;
2.4 frystyk 164: for (list=0; list<2; list++) {
2.14 frystyk 165: if ((!list && ((cur = HTFormat_language()) != NULL)) ||
166: (list && ((cur = HTRequest_language(request)) != NULL))) {
2.4 frystyk 167: HTAcceptNode *pres;
168: while ((pres = (HTAcceptNode *) HTList_nextObject(cur))) {
2.5 frystyk 169: if (first) {
2.24 frystyk 170: PUTS("Accept-Language: ");
2.5 frystyk 171: first=NO;
2.24 frystyk 172: } else
173: PUTC(',');
174: PUTS(HTAtom_name(pres->atom));
175: if (pres->quality != 1.0) {
176: sprintf(qstr, ";q=%1.1f", pres->quality);
177: PUTS(qstr);
2.5 frystyk 178: }
2.4 frystyk 179: }
180: }
181: }
2.31 frystyk 182: if (!first) PUTBLOCK(crlf, 2);
2.4 frystyk 183: }
2.36 ! frystyk 184: if (request_mask & HT_C_AUTH) {
2.34 frystyk 185: HTAssocList * cur = HTRequest_credentials(request);
186: if (cur) { /* Access authentication */
187: HTAssoc * pres;
188: while ((pres = (HTAssoc *) HTAssocList_nextObject(cur))) {
189: PUTS(HTAssoc_name(pres));
190: PUTS(": ");
191: PUTS(HTAssoc_value(pres));
192: PUTBLOCK(crlf, 2);
193: }
2.28 frystyk 194: }
2.1 frystyk 195: }
2.34 frystyk 196: if (request_mask & HT_C_FROM) {
197: HTUserProfile * up = HTRequest_userProfile(request);
198: const char * mailaddress = HTUserProfile_email(up);
2.1 frystyk 199: if (mailaddress) {
2.24 frystyk 200: PUTS("From: ");
201: PUTS(mailaddress);
202: PUTBLOCK(crlf, 2);
2.1 frystyk 203: }
204: }
2.34 frystyk 205: if (request_mask & HT_C_IMS) {
2.21 frystyk 206: time_t lm = HTAnchor_lastModified(anchor);
2.24 frystyk 207: if (lm > 0) {
208: PUTS("If-Modified-Since: ");
209: PUTS(HTDateTimeStr(&lm, NO));
210: PUTBLOCK(crlf, 2);
2.8 frystyk 211: }
212: }
2.34 frystyk 213: if (request_mask & HT_C_HOST) {
2.13 frystyk 214: char *orig = HTAnchor_address((HTAnchor *) anchor);
2.12 frystyk 215: char *host = HTParse(orig, "", PARSE_HOST);
2.34 frystyk 216: #if 0
217: /* Keep the port number for HTTP/1.1 compliance */
2.12 frystyk 218: char *ptr = strchr(host, ':'); /* Chop off port number */
219: if (ptr) *ptr = '\0';
2.34 frystyk 220: #endif
2.24 frystyk 221: PUTS("Host: ");
222: PUTS(host);
223: PUTBLOCK(crlf, 2);
2.26 frystyk 224: HT_FREE(orig);
225: HT_FREE(host);
2.1 frystyk 226: }
2.34 frystyk 227: if (request_mask & HT_C_REFERER) {
228: HTParentAnchor * parent_anchor = HTRequest_parent(request);
229: if (parent_anchor) {
230: char * act = HTAnchor_address((HTAnchor *) anchor);
231: char * parent = HTAnchor_address((HTAnchor *) parent_anchor);
232: char * relative = HTParse(parent, act,
233: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
234: if (relative && *relative) {
235: PUTS("Referer: ");
236: PUTS(parent);
237: PUTBLOCK(crlf, 2);
238: }
239: HT_FREE(act);
240: HT_FREE(parent);
241: HT_FREE(relative);
2.1 frystyk 242: }
243: }
2.34 frystyk 244: if (request_mask & HT_C_USER_AGENT) {
2.24 frystyk 245: PUTS("User-Agent: ");
246: PUTS(HTLib_appName());
247: PUTC('/');
248: PUTS(HTLib_appVersion());
249: PUTC(' ');
250: PUTS(HTLib_name());
251: PUTC('/');
252: PUTS(HTLib_version());
253: PUTBLOCK(crlf, 2);
2.1 frystyk 254: }
2.27 eric 255: if (PROT_TRACE)HTTrace("HTTP........ Generating Request Headers\n");
2.1 frystyk 256: }
257:
2.29 frystyk 258: PRIVATE int HTTPRequest_put_block (HTStream * me, const char * b, int l)
2.1 frystyk 259: {
2.7 frystyk 260: if (!me->target) {
2.1 frystyk 261: return HT_WOULD_BLOCK;
2.7 frystyk 262: } else if (me->transparent)
2.11 frystyk 263: return b ? PUTBLOCK(b, l) : HT_OK;
2.1 frystyk 264: else {
265: int status;
2.11 frystyk 266: if (me->version == HTTP_09)
267: HTTP09Request(me, me->request);
2.24 frystyk 268: else {
2.11 frystyk 269: HTTPMakeRequest(me, me->request); /* Generate header */
2.1 frystyk 270: me->transparent = YES;
2.11 frystyk 271: return b ? PUTBLOCK(b, l) : HT_OK;
2.1 frystyk 272: }
273: return status;
274: }
275: }
276:
2.16 frystyk 277: PRIVATE int HTTPRequest_put_character (HTStream * me, char c)
2.1 frystyk 278: {
2.11 frystyk 279: return HTTPRequest_put_block(me, &c, 1);
2.1 frystyk 280: }
281:
2.29 frystyk 282: PRIVATE int HTTPRequest_put_string (HTStream * me, const char * s)
2.1 frystyk 283: {
2.11 frystyk 284: return HTTPRequest_put_block(me, s, strlen(s));
2.1 frystyk 285: }
286:
287: /*
288: ** Flushes data but doesn't free stream object
289: */
2.16 frystyk 290: PRIVATE int HTTPRequest_flush (HTStream * me)
2.1 frystyk 291: {
2.13 frystyk 292: int status = HTTPRequest_put_block(me, NULL, 0);
293: return status==HT_OK ? (*me->target->isa->flush)(me->target) : status;
2.1 frystyk 294: }
295:
296: /*
297: ** Flushes data and frees stream object
298: */
2.16 frystyk 299: PRIVATE int HTTPRequest_free (HTStream * me)
2.1 frystyk 300: {
2.11 frystyk 301: int status = HTTPRequest_flush(me);
302: if (status != HT_WOULD_BLOCK) {
303: if ((status = (*me->target->isa->_free)(me->target)) == HT_WOULD_BLOCK)
304: return HT_WOULD_BLOCK;
2.26 frystyk 305: HT_FREE(me);
2.1 frystyk 306: }
2.7 frystyk 307: return status;
2.1 frystyk 308: }
309:
2.16 frystyk 310: PRIVATE int HTTPRequest_abort (HTStream * me, HTList * e)
2.1 frystyk 311: {
2.13 frystyk 312: if (me->target) (*me->target->isa->abort)(me->target, e);
2.26 frystyk 313: HT_FREE(me);
2.27 eric 314: if (PROT_TRACE) HTTrace("HTTPRequest. ABORTING...\n");
2.1 frystyk 315: return HT_ERROR;
316: }
317:
318: /* HTTPRequest Stream
319: ** -----------------
320: */
2.29 frystyk 321: PRIVATE const HTStreamClass HTTPRequestClass =
2.1 frystyk 322: {
323: "HTTPRequest",
324: HTTPRequest_flush,
325: HTTPRequest_free,
326: HTTPRequest_abort,
327: HTTPRequest_put_character,
328: HTTPRequest_put_string,
329: HTTPRequest_put_block
330: };
331:
2.23 frystyk 332: PUBLIC HTStream * HTTPRequest_new (HTRequest * request, HTStream * target,
333: BOOL endHeader)
2.1 frystyk 334: {
2.34 frystyk 335: HTNet * net = HTRequest_net(request);
336: HTHost * host = HTNet_host(net);
2.26 frystyk 337: HTStream * me;
338: if ((me = (HTStream *) HT_CALLOC(1, sizeof(HTStream))) == NULL)
339: HT_OUTOFMEM("HTTPRequest_new");
2.1 frystyk 340: me->isa = &HTTPRequestClass;
341: me->target = target;
342: me->request = request;
2.32 frystyk 343: me->version = HTHost_version(host);
2.1 frystyk 344: me->transparent = NO;
2.23 frystyk 345:
346: /* Return general HTTP header stream */
347: return HTTPGen_new(request, me, endHeader);
2.1 frystyk 348: }
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