Annotation of libwww/Library/src/HTMIMERq.c, revision 2.18
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.
2.18 ! frystyk 6: ** @(#) $Id: HTMIMERq.c,v 2.17 1996/04/12 17:47:41 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: }
2.10 frystyk 91: if (request->EntityMask & HT_E_CONTENT_LENGTH) { /* Must be there!!! */
92: sprintf(linebuf, "Content-Length: %ld%c%c",
93: entity->content_length, CR, LF);
94: PUTBLOCK(linebuf, (int) strlen(linebuf));
95: }
2.18 ! frystyk 96: if (request->EntityMask & HT_E_CTE && entity->transfer) {
2.10 frystyk 97: sprintf(linebuf, "Content-Transfer-Encoding: %s%c%c",
2.18 ! frystyk 98: HTAtom_name(entity->transfer), CR, LF);
2.2 frystyk 99: PUTBLOCK(linebuf, (int) strlen(linebuf));
2.1 frystyk 100: }
2.10 frystyk 101: if (request->EntityMask & HT_E_CONTENT_TYPE && entity->content_type) {
102: int len;
103: sprintf(linebuf, "Content-Type: %s",
104: HTAtom_name(entity->content_type));
105: if (entity->charset) {
106: strcat(linebuf, "; charset=");
107: strcat(linebuf, HTAtom_name(entity->charset));
108: }
109: if (entity->level) {
110: strcat(linebuf, "; level=");
111: strcat(linebuf, HTAtom_name(entity->level));
112: }
113: len = strlen(linebuf);
114: *(linebuf+len) = CR;
115: *(linebuf+len+1) = LF;
116: *(linebuf+len+2) = '\0';
117: PUTBLOCK(linebuf, (int) len+2);
118: }
119: if (request->EntityMask & HT_E_DERIVED_FROM && entity->derived_from) {
120: sprintf(linebuf, "Derived-From: %s%c%c", entity->derived_from,
121: CR, LF);
2.2 frystyk 122: PUTBLOCK(linebuf, (int) strlen(linebuf));
2.1 frystyk 123: }
2.10 frystyk 124: if (request->EntityMask & HT_E_EXPIRES) {
125: if (entity->expires != -1) {
126: sprintf(linebuf, "Expires: %s%c%c",
127: HTDateTimeStr(&entity->expires, NO), CR,LF);
2.2 frystyk 128: PUTBLOCK(linebuf, (int) strlen(linebuf));
2.1 frystyk 129: }
2.10 frystyk 130: }
131: if (request->EntityMask & HT_E_LAST_MODIFIED) {
132: if (entity->last_modified != -1) {
133: sprintf(linebuf, "Last-Modified: %s%c%c",
134: HTDateTimeStr(&entity->last_modified, NO), CR,LF);
2.2 frystyk 135: PUTBLOCK(linebuf, (int) strlen(linebuf));
2.1 frystyk 136: }
2.10 frystyk 137: }
138: if (request->EntityMask & HT_E_LINK) { /* @@@@@@@@@@ */
2.1 frystyk 139:
2.10 frystyk 140: }
141: if (request->EntityMask & HT_E_TITLE) { /* @@@@@@@@@@ */
2.1 frystyk 142:
2.10 frystyk 143: }
144: if (request->EntityMask & HT_E_URI) { /* @@@@@@@@@@ */
2.1 frystyk 145:
146: }
2.10 frystyk 147: if (request->EntityMask & HT_E_VERSION && entity->version) {
148: sprintf(linebuf, "Version: %s%c%c", entity->version, CR, LF);
149: PUTBLOCK(linebuf, (int) strlen(linebuf));
150: }
151: if (me->endHeader) {
152: sprintf(linebuf, "%c%c", CR, LF); /* Blank line means "end" */
153: PUTBLOCK(linebuf, (int) strlen(linebuf));
2.2 frystyk 154: }
2.13 eric 155: if (PROT_TRACE) HTTrace("MIME........ Generating Entity Headers\n");
2.2 frystyk 156: return HT_OK;
2.1 frystyk 157: }
158:
2.14 frystyk 159: PRIVATE int MIMERequest_put_block (HTStream * me, const char * b, int l)
2.1 frystyk 160: {
161: if (me->transparent)
162: return b ? PUTBLOCK(b, l) : HT_OK;
163: else {
164: MIMEMakeRequest(me, me->request);
2.9 frystyk 165: if (HTRequest_isDestination(me->request)) {
166: (*me->target->isa->flush)(me->target);
167: HTNet_setBytesWritten(me->request->net, 0);
2.1 frystyk 168: }
2.9 frystyk 169: me->transparent = YES;
2.2 frystyk 170: return b ? PUTBLOCK(b, l) : HT_OK;
2.1 frystyk 171: }
172: }
173:
174: PRIVATE int MIMERequest_put_character (HTStream * me, char c)
175: {
176: return MIMERequest_put_block(me, &c, 1);
177: }
178:
2.14 frystyk 179: PRIVATE int MIMERequest_put_string (HTStream * me, const char * s)
2.1 frystyk 180: {
181: return MIMERequest_put_block(me, s, strlen(s));
182: }
183:
184: /*
185: ** Flushes header but doesn't free stream object
186: */
187: PRIVATE int MIMERequest_flush (HTStream * me)
188: {
189: int status = MIMERequest_put_block(me, NULL, 0);
190: return status==HT_OK ? (*me->target->isa->flush)(me->target) : status;
191: }
192:
193: /*
194: ** Flushes data and frees stream object
195: */
196: PRIVATE int MIMERequest_free (HTStream * me)
197: {
198: int status = MIMERequest_flush(me);
199: if (status != HT_WOULD_BLOCK) {
200: if ((status = (*me->target->isa->_free)(me->target)) == HT_WOULD_BLOCK)
201: return HT_WOULD_BLOCK;
2.12 frystyk 202: HT_FREE(me);
2.1 frystyk 203: }
204: return status;
205: }
206:
2.4 frystyk 207: PRIVATE int MIMERequest_abort (HTStream * me, HTList * e)
2.1 frystyk 208: {
209: if (me->target) (*me->target->isa->abort)(me->target, e);
2.12 frystyk 210: HT_FREE(me);
2.13 eric 211: if (PROT_TRACE) HTTrace("MIMERequest. ABORTING...\n");
2.1 frystyk 212: return HT_ERROR;
213: }
214:
215: /* MIMERequest Stream
216: ** -----------------
217: */
2.14 frystyk 218: PRIVATE const HTStreamClass MIMERequestClass =
2.1 frystyk 219: {
220: "MIMERequest",
221: MIMERequest_flush,
222: MIMERequest_free,
223: MIMERequest_abort,
224: MIMERequest_put_character,
225: MIMERequest_put_string,
226: MIMERequest_put_block
227: };
228:
2.10 frystyk 229: PUBLIC HTStream * HTMIMERequest_new (HTRequest * request, HTStream * target,
230: BOOL endHeader)
2.1 frystyk 231: {
2.12 frystyk 232: HTStream * me;
233: if ((me = (HTStream *) HT_CALLOC(1, sizeof(HTStream))) == NULL)
234: HT_OUTOFMEM("HTMIMERequest_new");
2.1 frystyk 235: me->isa = &MIMERequestClass;
236: me->target = target;
237: me->request = request;
2.10 frystyk 238: me->endHeader = endHeader;
2.1 frystyk 239: me->transparent = NO;
240: return me;
241: }
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