Annotation of libwww/Library/src/HTMIMERq.c, revision 2.19
2.1 frystyk 1: /* HTMIMERq.c
2.10 frystyk 2: ** MIME ENTITY HEADERS GENERATION
2.1 frystyk 3: **
2.15 frystyk 4: ** (c) COPYRIGHT MIT 1995.
5: ** Please first read the full copyright statement in the file COPYRIGH.
2.19 ! frystyk 6: ** @(#) $Id: HTMIMERq.c,v 2.18 1996/04/15 21:06:01 frystyk Exp $
2.15 frystyk 7: **
2.1 frystyk 8: ** This module implements the output stream for MIME used for sending
2.10 frystyk 9: ** requests with a entity body to HTTP, NEWS, etc. or for generating
10: ** responses
2.1 frystyk 11: **
12: ** History:
13: ** Jan 95 HFN Written
14: */
15:
16: /* Library Includes */
2.14 frystyk 17: #include "sysdep.h"
2.1 frystyk 18: #include "HTUtils.h"
19: #include "HTString.h"
2.5 frystyk 20: #include "HTWWWStr.h"
2.1 frystyk 21: #include "HTParse.h"
22: #include "HTFormat.h"
2.7 frystyk 23: #include "HTAncMan.h"
2.1 frystyk 24: #include "HTNetMan.h"
25: #include "HTDNS.h"
26: #include "HTTCP.h"
2.2 frystyk 27: #include "HTHeader.h"
2.1 frystyk 28: #include "HTReqMan.h"
29: #include "HTTPReq.h" /* Implements */
30:
2.17 frystyk 31: #define PUTC(c) (*me->target->isa->put_character)(me->target, c)
32: #define PUTS(s) (*me->target->isa->put_string)(me->target, s)
2.1 frystyk 33: #define PUTBLOCK(b, l) (*me->target->isa->put_block)(me->target, b, l)
34:
35: struct _HTStream {
2.14 frystyk 36: const HTStreamClass * isa;
2.1 frystyk 37: HTStream * target;
38: HTRequest * request;
2.10 frystyk 39: BOOL endHeader;
2.1 frystyk 40: BOOL transparent;
41: };
42:
43: /* ------------------------------------------------------------------------- */
44: /* MIME Output Request Stream */
45: /* ------------------------------------------------------------------------- */
46:
47: /* MIMEMakeRequest
48: ** ---------------
2.10 frystyk 49: ** Generates the BODY parts of a MIME message.
2.1 frystyk 50: */
2.2 frystyk 51: PRIVATE int MIMEMakeRequest (HTStream * me, HTRequest * request)
2.1 frystyk 52: {
2.17 frystyk 53: char crlf[3];
2.10 frystyk 54: char linebuf[256]; /* @@@ */
2.11 frystyk 55: HTParentAnchor *entity = request->source_anchor ?
56: request->source_anchor : request->anchor;
2.17 frystyk 57: *crlf = CR; *(crlf+1) = LF; *(crlf+2) = '\0';
2.1 frystyk 58:
2.10 frystyk 59: if (request->EntityMask & HT_E_ALLOW) {
60: /* @@@@@@@@@@ */
61: }
2.17 frystyk 62: if (request->EntityMask&HT_E_CONTENT_ENCODING && entity->content_encoding){
63: BOOL first = YES;
64: HTList * cur = entity->content_encoding;
65: HTEncoding pres;
66: while ((pres = (HTEncoding) HTList_nextObject(cur))) {
67: if (first) {
68: PUTS("Content-Encoding: ");
69: first = NO;
70: } else
71: PUTC(',');
72: PUTS(HTAtom_name(pres));
73: }
74: if (!first) PUTBLOCK(crlf, 2);
2.1 frystyk 75: }
2.10 frystyk 76:
2.17 frystyk 77: if (request->EntityMask&HT_E_CONTENT_LANGUAGE && entity->content_language){
78: BOOL first = YES;
79: HTList * cur = entity->content_language;
80: HTLanguage pres;
81: while ((pres = (HTLanguage) HTList_nextObject(cur))) {
82: if (first) {
83: PUTS("Content-Language: ");
84: first = NO;
85: } else
86: PUTC(',');
87: PUTS(HTAtom_name(pres));
88: }
89: if (!first) PUTBLOCK(crlf, 2);
2.1 frystyk 90: }
2.19 ! frystyk 91: if (request->EntityMask & HT_E_CONTENT_LENGTH &&
! 92: entity->content_length >= 0) { /* Must be there!!! */
2.10 frystyk 93: sprintf(linebuf, "Content-Length: %ld%c%c",
94: entity->content_length, CR, LF);
95: PUTBLOCK(linebuf, (int) strlen(linebuf));
96: }
2.18 frystyk 97: if (request->EntityMask & HT_E_CTE && entity->transfer) {
2.10 frystyk 98: sprintf(linebuf, "Content-Transfer-Encoding: %s%c%c",
2.18 frystyk 99: HTAtom_name(entity->transfer), CR, LF);
2.2 frystyk 100: PUTBLOCK(linebuf, (int) strlen(linebuf));
2.1 frystyk 101: }
2.19 ! frystyk 102: if (request->EntityMask & HT_E_CONTENT_TYPE && entity->content_type &&
! 103: entity->content_type != WWW_UNKNOWN) {
! 104: HTAssocList * parameters = HTAnchor_formatParam(entity);
! 105:
! 106: /* Output the content type */
! 107: PUTS("Content-Type: ");
! 108: PUTS(HTAtom_name(entity->content_type));
! 109:
! 110: /* Add all parameters */
! 111: if (parameters) {
! 112: HTAssoc * pres;
! 113: while ((pres = (HTAssoc *) HTAssocList_nextObject(parameters))) {
! 114: PUTS(";");
! 115: PUTS(HTAssoc_name(pres));
! 116: PUTS("=");
! 117: PUTS(HTAssoc_value(pres));
! 118: }
! 119: }
! 120: PUTBLOCK(crlf, 2);
! 121: #if 0
2.10 frystyk 122: if (entity->charset) {
123: strcat(linebuf, "; charset=");
124: strcat(linebuf, HTAtom_name(entity->charset));
125: }
126: if (entity->level) {
127: strcat(linebuf, "; level=");
128: strcat(linebuf, HTAtom_name(entity->level));
129: }
130: len = strlen(linebuf);
131: *(linebuf+len) = CR;
132: *(linebuf+len+1) = LF;
133: *(linebuf+len+2) = '\0';
134: PUTBLOCK(linebuf, (int) len+2);
2.19 ! frystyk 135: #endif
2.10 frystyk 136: }
137: if (request->EntityMask & HT_E_DERIVED_FROM && entity->derived_from) {
138: sprintf(linebuf, "Derived-From: %s%c%c", entity->derived_from,
139: CR, LF);
2.2 frystyk 140: PUTBLOCK(linebuf, (int) strlen(linebuf));
2.1 frystyk 141: }
2.10 frystyk 142: if (request->EntityMask & HT_E_EXPIRES) {
143: if (entity->expires != -1) {
144: sprintf(linebuf, "Expires: %s%c%c",
145: HTDateTimeStr(&entity->expires, NO), CR,LF);
2.2 frystyk 146: PUTBLOCK(linebuf, (int) strlen(linebuf));
2.1 frystyk 147: }
2.10 frystyk 148: }
149: if (request->EntityMask & HT_E_LAST_MODIFIED) {
150: if (entity->last_modified != -1) {
151: sprintf(linebuf, "Last-Modified: %s%c%c",
152: HTDateTimeStr(&entity->last_modified, NO), CR,LF);
2.2 frystyk 153: PUTBLOCK(linebuf, (int) strlen(linebuf));
2.1 frystyk 154: }
2.10 frystyk 155: }
156: if (request->EntityMask & HT_E_LINK) { /* @@@@@@@@@@ */
2.1 frystyk 157:
2.10 frystyk 158: }
159: if (request->EntityMask & HT_E_TITLE) { /* @@@@@@@@@@ */
2.1 frystyk 160:
2.10 frystyk 161: }
162: if (request->EntityMask & HT_E_URI) { /* @@@@@@@@@@ */
2.1 frystyk 163:
164: }
2.10 frystyk 165: if (request->EntityMask & HT_E_VERSION && entity->version) {
166: sprintf(linebuf, "Version: %s%c%c", entity->version, CR, LF);
167: PUTBLOCK(linebuf, (int) strlen(linebuf));
168: }
169: if (me->endHeader) {
170: sprintf(linebuf, "%c%c", CR, LF); /* Blank line means "end" */
171: PUTBLOCK(linebuf, (int) strlen(linebuf));
2.2 frystyk 172: }
2.13 eric 173: if (PROT_TRACE) HTTrace("MIME........ Generating Entity Headers\n");
2.2 frystyk 174: return HT_OK;
2.1 frystyk 175: }
176:
2.14 frystyk 177: PRIVATE int MIMERequest_put_block (HTStream * me, const char * b, int l)
2.1 frystyk 178: {
179: if (me->transparent)
180: return b ? PUTBLOCK(b, l) : HT_OK;
181: else {
182: MIMEMakeRequest(me, me->request);
2.9 frystyk 183: if (HTRequest_isDestination(me->request)) {
184: (*me->target->isa->flush)(me->target);
185: HTNet_setBytesWritten(me->request->net, 0);
2.1 frystyk 186: }
2.9 frystyk 187: me->transparent = YES;
2.2 frystyk 188: return b ? PUTBLOCK(b, l) : HT_OK;
2.1 frystyk 189: }
190: }
191:
192: PRIVATE int MIMERequest_put_character (HTStream * me, char c)
193: {
194: return MIMERequest_put_block(me, &c, 1);
195: }
196:
2.14 frystyk 197: PRIVATE int MIMERequest_put_string (HTStream * me, const char * s)
2.1 frystyk 198: {
199: return MIMERequest_put_block(me, s, strlen(s));
200: }
201:
202: /*
203: ** Flushes header but doesn't free stream object
204: */
205: PRIVATE int MIMERequest_flush (HTStream * me)
206: {
207: int status = MIMERequest_put_block(me, NULL, 0);
208: return status==HT_OK ? (*me->target->isa->flush)(me->target) : status;
209: }
210:
211: /*
212: ** Flushes data and frees stream object
213: */
214: PRIVATE int MIMERequest_free (HTStream * me)
215: {
216: int status = MIMERequest_flush(me);
217: if (status != HT_WOULD_BLOCK) {
218: if ((status = (*me->target->isa->_free)(me->target)) == HT_WOULD_BLOCK)
219: return HT_WOULD_BLOCK;
2.12 frystyk 220: HT_FREE(me);
2.1 frystyk 221: }
222: return status;
223: }
224:
2.4 frystyk 225: PRIVATE int MIMERequest_abort (HTStream * me, HTList * e)
2.1 frystyk 226: {
227: if (me->target) (*me->target->isa->abort)(me->target, e);
2.12 frystyk 228: HT_FREE(me);
2.13 eric 229: if (PROT_TRACE) HTTrace("MIMERequest. ABORTING...\n");
2.1 frystyk 230: return HT_ERROR;
231: }
232:
233: /* MIMERequest Stream
234: ** -----------------
235: */
2.14 frystyk 236: PRIVATE const HTStreamClass MIMERequestClass =
2.1 frystyk 237: {
238: "MIMERequest",
239: MIMERequest_flush,
240: MIMERequest_free,
241: MIMERequest_abort,
242: MIMERequest_put_character,
243: MIMERequest_put_string,
244: MIMERequest_put_block
245: };
246:
2.10 frystyk 247: PUBLIC HTStream * HTMIMERequest_new (HTRequest * request, HTStream * target,
248: BOOL endHeader)
2.1 frystyk 249: {
2.12 frystyk 250: HTStream * me;
251: if ((me = (HTStream *) HT_CALLOC(1, sizeof(HTStream))) == NULL)
252: HT_OUTOFMEM("HTMIMERequest_new");
2.1 frystyk 253: me->isa = &MIMERequestClass;
254: me->target = target;
255: me->request = request;
2.10 frystyk 256: me->endHeader = endHeader;
2.1 frystyk 257: me->transparent = NO;
258: return me;
259: }
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