Annotation of libwww/Library/src/HTMIMERq.c, revision 2.8.2.1
2.1 frystyk 1: /* HTMIMERq.c
2: ** MIME MESSAGE GENERATION
3: **
4: ** This module implements the output stream for MIME used for sending
5: ** requests with or without a entity body to HTTP, NEWS, etc.
6: **
7: ** History:
8: ** Jan 95 HFN Written
9: */
10:
11: /* Library Includes */
12: #include "tcp.h"
13: #include "HTUtils.h"
14: #include "HTString.h"
2.5 frystyk 15: #include "HTWWWStr.h"
2.1 frystyk 16: #include "HTParse.h"
17: #include "HTFormat.h"
2.7 frystyk 18: #include "HTAncMan.h"
2.1 frystyk 19: #include "HTNetMan.h"
20: #include "HTDNS.h"
21: #include "HTTCP.h"
22: #include "HTWriter.h"
2.2 frystyk 23: #include "HTHeader.h"
2.1 frystyk 24: #include "HTReqMan.h"
25: #include "HTTPReq.h" /* Implements */
26:
27: #define MIME_VERSION "MIME/1.0"
28: #define PUTBLOCK(b, l) (*me->target->isa->put_block)(me->target, b, l)
29:
30: struct _HTStream {
31: CONST HTStreamClass * isa;
32: HTStream * target;
33: HTRequest * request;
2.6 frystyk 34: SOCKET sockfd;
2.1 frystyk 35: int version;
36: BOOL transparent;
37: };
38:
39: /* ------------------------------------------------------------------------- */
40: /* MIME Output Request Stream */
41: /* ------------------------------------------------------------------------- */
42:
43: /* MIMEMakeRequest
44: ** ---------------
45: ** Makes a MIME/1.0 request header.
46: */
2.2 frystyk 47: PRIVATE int MIMEMakeRequest (HTStream * me, HTRequest * request)
2.1 frystyk 48: {
49: char linebuf[256];
50: HTParentAnchor *entity = (request->source && request->source->anchor) ?
51: request->source->anchor : request->anchor;
52:
53: /* General Headers */
2.8 frystyk 54: if (request->GenMask & HT_G_DATE) {
2.1 frystyk 55: time_t local = time(NULL);
56: sprintf(linebuf, "Date: %s%c%c", HTDateTimeStr(&local, NO), CR,LF);
2.2 frystyk 57: PUTBLOCK(linebuf, (int) strlen(linebuf));
2.1 frystyk 58: }
2.8 frystyk 59: if (request->GenMask & HT_G_FORWARDED) {
2.1 frystyk 60: /* @@@@@@ */
61: }
2.8 frystyk 62: if (request->GenMask & HT_G_MESSAGE_ID) {
2.1 frystyk 63: CONST char *msgid = HTMessageIdStr();
64: if (msgid) {
65: sprintf(linebuf, "Message-ID: %s%c%c", msgid, CR, LF);
2.2 frystyk 66: PUTBLOCK(linebuf, (int) strlen(linebuf));
2.1 frystyk 67: }
68: }
2.8 frystyk 69: if (request->GenMask & HT_G_MIME) {
2.1 frystyk 70: sprintf(linebuf, "MIME-Version: %s%c%c", MIME_VERSION, CR, LF);
2.2 frystyk 71: PUTBLOCK(linebuf, (int) strlen(linebuf));
2.1 frystyk 72: }
2.8 frystyk 73: if (request->GenMask & HT_G_CONNECTION) {
2.1 frystyk 74: sprintf(linebuf, "Connection: Keep-Alive%c%c", CR, LF);
2.2 frystyk 75: PUTBLOCK(linebuf, (int) strlen(linebuf));
2.1 frystyk 76: }
2.8 frystyk 77: if (request->RequestMask & HT_G_NO_CACHE) {
2.1 frystyk 78: sprintf(linebuf, "Pragma: %s%c%c", "no-cache", CR, LF);
2.2 frystyk 79: PUTBLOCK(linebuf, (int) strlen(linebuf));
2.1 frystyk 80: }
81:
2.8 frystyk 82: /* Now put out entity headers if we are using PUT or POST or is a server
83: ** If we have a
2.1 frystyk 84: ** PostAnchor then we take the information from this and uses the
85: ** destination anchor to contain the reply. Otherwise, we have created an
86: ** anchor (using internal editing etc) and we can use the destination
87: ** anchor directly.
88: */
2.8 frystyk 89: if (HTMethod_hasEntity(request->method) || request->access) {
90: if (request->EntityMask & HT_E_ALLOW) {
2.1 frystyk 91: /* @@@@@@@@@@ */
92: }
2.8 frystyk 93: if (request->EntityMask & HT_E_CONTENT_ENCODING &&
2.1 frystyk 94: entity->content_encoding) {
95: sprintf(linebuf, "Content-Encoding: %s%c%c",
96: HTAtom_name(entity->content_encoding), CR, LF);
2.2 frystyk 97: PUTBLOCK(linebuf, (int) strlen(linebuf));
2.1 frystyk 98: }
99:
100: /* @@@ SHOULD BE A LIST @@@ */
2.8 frystyk 101: if (request->EntityMask & HT_E_CONTENT_LANGUAGE &&
2.1 frystyk 102: entity->content_language) {
103: sprintf(linebuf, "Content-Language: %s%c%c",
104: HTAtom_name(entity->content_language), CR, LF);
2.2 frystyk 105: PUTBLOCK(linebuf, (int) strlen(linebuf));
2.1 frystyk 106: }
2.8 frystyk 107: if (request->EntityMask & HT_E_CONTENT_LENGTH) { /* Must be there!!! */
2.1 frystyk 108: sprintf(linebuf, "Content-Length: %ld%c%c",
109: entity->content_length, CR, LF);
2.2 frystyk 110: PUTBLOCK(linebuf, (int) strlen(linebuf));
2.1 frystyk 111: }
2.8 frystyk 112: if (request->EntityMask & HT_E_CTE && entity->cte) {
2.1 frystyk 113: sprintf(linebuf, "Content-Transfer-Encoding: %s%c%c",
114: HTAtom_name(entity->cte), CR, LF);
2.2 frystyk 115: PUTBLOCK(linebuf, (int) strlen(linebuf));
2.1 frystyk 116: }
2.8 frystyk 117: if (request->EntityMask & HT_E_CONTENT_TYPE && entity->content_type) {
2.2 frystyk 118: int len;
2.1 frystyk 119: sprintf(linebuf, "Content-Type: %s",
120: HTAtom_name(entity->content_type));
121: if (entity->charset) {
122: strcat(linebuf, "; charset=");
123: strcat(linebuf, HTAtom_name(entity->charset));
124: }
125: if (entity->level) {
126: strcat(linebuf, "; level=");
127: strcat(linebuf, HTAtom_name(entity->level));
128: }
2.2 frystyk 129: len = strlen(linebuf);
130: *(linebuf+len) = CR;
131: *(linebuf+len+1) = LF;
132: *(linebuf+len+2) = '\0';
133: PUTBLOCK(linebuf, (int) len+2);
2.1 frystyk 134: }
2.8 frystyk 135: if (request->EntityMask & HT_E_DERIVED_FROM && entity->derived_from) {
2.1 frystyk 136: sprintf(linebuf, "Derived-From: %s%c%c", entity->derived_from,
137: CR, LF);
2.2 frystyk 138: PUTBLOCK(linebuf, (int) strlen(linebuf));
2.1 frystyk 139: }
2.8 frystyk 140: if (request->EntityMask & HT_E_EXPIRES) {
2.1 frystyk 141: if (entity->expires != -1) {
142: sprintf(linebuf, "Expires: %s%c%c",
143: HTDateTimeStr(&entity->expires, NO), CR,LF);
2.2 frystyk 144: PUTBLOCK(linebuf, (int) strlen(linebuf));
2.1 frystyk 145: }
146: }
2.8 frystyk 147: if (request->EntityMask & HT_E_LAST_MODIFIED) {
2.1 frystyk 148: if (entity->last_modified != -1) {
149: sprintf(linebuf, "Last-Modified: %s%c%c",
150: HTDateTimeStr(&entity->last_modified, NO), CR,LF);
2.2 frystyk 151: PUTBLOCK(linebuf, (int) strlen(linebuf));
2.1 frystyk 152: }
153: }
2.8 frystyk 154: if (request->EntityMask & HT_E_LINK) { /* @@@@@@@@@@ */
2.1 frystyk 155:
156: }
2.8 frystyk 157: if (request->EntityMask & HT_E_TITLE) { /* @@@@@@@@@@ */
2.1 frystyk 158:
159: }
2.8 frystyk 160: if (request->EntityMask & HT_E_URI) { /* @@@@@@@@@@ */
2.1 frystyk 161:
162: }
2.8 frystyk 163: if (request->EntityMask & HT_E_VERSION && entity->version) {
2.1 frystyk 164: sprintf(linebuf, "Version: %s%c%c", entity->version, CR, LF);
2.2 frystyk 165: PUTBLOCK(linebuf, (int) strlen(linebuf));
2.1 frystyk 166: }
167: }
168:
169: /* Put out extra information if any */
2.2 frystyk 170: {
171: HTList * list;
172: BOOL override;
173: if ((list = HTRequest_generator(request, &override))) {
174: HTList *local = list;
175: HTPostCallback *pres;
2.3 frystyk 176: if (STREAM_TRACE) TTYPrint(TDEST,"MIMEGen..... Extra local\n");
2.2 frystyk 177: while ((pres = (HTPostCallback *) HTList_nextObject(local)))
178: (*pres)(request, me->target);
179: } else if (!override && (list = HTHeader_generator())) {
180: HTList *global = list;
181: HTPostCallback *pres;
2.3 frystyk 182: if (STREAM_TRACE) TTYPrint(TDEST,"MIMEGen..... Extra global\n");
2.2 frystyk 183: while ((pres = (HTPostCallback *) HTList_nextObject(global)))
184: (*pres)(request, me->target);
185: }
186: }
2.1 frystyk 187:
188: /* Blank line means "end" */
2.2 frystyk 189: sprintf(linebuf, "%c%c", CR, LF);
190: PUTBLOCK(linebuf, (int) strlen(linebuf));
191: return HT_OK;
2.1 frystyk 192: }
193:
194: PRIVATE int MIMERequest_put_block (HTStream * me, CONST char * b, int l)
195: {
196: if (me->transparent)
197: return b ? PUTBLOCK(b, l) : HT_OK;
198: else {
199: MIMEMakeRequest(me, me->request);
2.8.2.1 ! frystyk 200: if (HTRequest_isDestination(me->request)) {
! 201: (*me->target->isa->flush)(me->target);
! 202: HTNet_setBytesWritten(me->request->net, 0);
2.1 frystyk 203: }
2.8.2.1 ! frystyk 204: me->transparent = YES;
2.2 frystyk 205: return b ? PUTBLOCK(b, l) : HT_OK;
2.1 frystyk 206: }
207: }
208:
209: PRIVATE int MIMERequest_put_character (HTStream * me, char c)
210: {
211: return MIMERequest_put_block(me, &c, 1);
212: }
213:
214: PRIVATE int MIMERequest_put_string (HTStream * me, CONST char * s)
215: {
216: return MIMERequest_put_block(me, s, strlen(s));
217: }
218:
219: /*
220: ** Flushes header but doesn't free stream object
221: */
222: PRIVATE int MIMERequest_flush (HTStream * me)
223: {
224: int status = MIMERequest_put_block(me, NULL, 0);
225: return status==HT_OK ? (*me->target->isa->flush)(me->target) : status;
226: }
227:
228: /*
229: ** Flushes data and frees stream object
230: */
231: PRIVATE int MIMERequest_free (HTStream * me)
232: {
233: int status = MIMERequest_flush(me);
234: if (status != HT_WOULD_BLOCK) {
235: if ((status = (*me->target->isa->_free)(me->target)) == HT_WOULD_BLOCK)
236: return HT_WOULD_BLOCK;
237: free(me);
238: }
239: return status;
240: }
241:
2.4 frystyk 242: PRIVATE int MIMERequest_abort (HTStream * me, HTList * e)
2.1 frystyk 243: {
244: if (me->target) (*me->target->isa->abort)(me->target, e);
245: free(me);
2.3 frystyk 246: if (PROT_TRACE) TTYPrint(TDEST, "MIMERequest. ABORTING...\n");
2.1 frystyk 247: return HT_ERROR;
248: }
249:
250: /* MIMERequest Stream
251: ** -----------------
252: */
253: PRIVATE CONST HTStreamClass MIMERequestClass =
254: {
255: "MIMERequest",
256: MIMERequest_flush,
257: MIMERequest_free,
258: MIMERequest_abort,
259: MIMERequest_put_character,
260: MIMERequest_put_string,
261: MIMERequest_put_block
262: };
263:
264: PUBLIC HTStream * HTMIMERequest_new (HTRequest * request, HTStream * target)
265: {
266: HTStream * me = (HTStream *) calloc(1, sizeof(HTStream));
267: if (!me) outofmem(__FILE__, "HTMIMERequest_new");
268: me->isa = &MIMERequestClass;
269: me->target = target;
270: me->request = request;
271: me->transparent = NO;
272: return me;
273: }
Webmaster
![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to HTMIMERq.c CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [Public] / libwww / Library / src