Annotation of libwww/Library/src/HTProt.c, revision 2.19
2.1 frystyk 1: /* HTProt.c
2: ** ACCESS SCHEME MANAGER
3: **
4: ** (c) COPYRIGHT MIT 1995.
5: ** Please first read the full copyright statement in the file COPYRIGH.
2.19 ! frystyk 6: ** @(#) $Id: HTProt.c,v 2.18 1998/05/04 19:37:14 frystyk Exp $
2.1 frystyk 7: **
8: **
9: ** HISTORY:
10: ** 6 July 95 HFN Spawned off from HTAccess
11: */
12:
13: /* Library Include files */
2.18 frystyk 14: #include "wwwsys.h"
2.1 frystyk 15: #include "HTUtils.h"
2.5 frystyk 16: #include "HTString.h"
2.1 frystyk 17: #include "HTParse.h"
18: #include "HTString.h"
2.15 frystyk 19: #include "HTTrans.h"
2.1 frystyk 20: #include "HTProt.h" /* Implemented here */
21:
22: /* Variables and typedefs local to this module */
2.5 frystyk 23: struct _HTProtocol {
2.15 frystyk 24: char * name; /* Name of this protocol access scheme */
25: char * transport; /* Name of the transport */
2.17 frystyk 26: HTProtocolId id; /* Default port for this protocol */
2.11 frystyk 27: BOOL preemptive;
2.17 frystyk 28: HTProtCallback * client;
29: HTProtCallback * server;
2.5 frystyk 30: };
31:
2.1 frystyk 32: PRIVATE HTList * protocols = NULL; /* List of registered protocols */
33:
34: /* --------------------------------------------------------------------------*/
35: /* Management of the HTProtocol structure */
36: /* --------------------------------------------------------------------------*/
37:
38: /*
2.3 frystyk 39: ** Register a Protocol module as an active access method
2.1 frystyk 40: */
2.13 frystyk 41: PUBLIC BOOL HTProtocol_add (const char * name,
2.15 frystyk 42: const char * transport,
2.17 frystyk 43: HTProtocolId protocolId,
2.11 frystyk 44: BOOL preemptive,
2.17 frystyk 45: HTProtCallback * client,
46: HTProtCallback * server)
2.1 frystyk 47: {
2.10 frystyk 48: if (name && (client || server)) {
2.12 frystyk 49: HTProtocol *newProt;
2.14 frystyk 50: if ((newProt=(HTProtocol *) HT_CALLOC(1, sizeof(HTProtocol))) == NULL)
2.12 frystyk 51: HT_OUTOFMEM("HTProtocol_add");
2.5 frystyk 52: StrAllocCopy(newProt->name, name);
2.9 frystyk 53: {
54: char *ptr = newProt->name;
55: while ((*ptr = TOLOWER(*ptr))) ptr++;
56: }
2.15 frystyk 57: StrAllocCopy(newProt->transport, transport);
58: {
59: char *ptr = newProt->transport;
60: while ((*ptr = TOLOWER(*ptr))) ptr++;
61: }
2.17 frystyk 62: newProt->id = protocolId;
2.11 frystyk 63: newProt->preemptive = preemptive;
2.10 frystyk 64: newProt->client = client;
65: newProt->server = server;
2.5 frystyk 66: if (!protocols) protocols = HTList_new();
2.16 frystyk 67: if (CORE_TRACE) HTTrace("Protocol.... Adding `%s'\n", name);
2.5 frystyk 68: return HTList_addObject(protocols, (void *) newProt);
69: }
70: return NO;
2.1 frystyk 71: }
72:
2.3 frystyk 73: /*
74: ** Deletes a Protocol module as an active access method
75: */
2.13 frystyk 76: PUBLIC BOOL HTProtocol_delete (const char * name)
2.3 frystyk 77: {
2.5 frystyk 78: if (protocols) {
79: HTList *cur = protocols;
80: HTProtocol *pres;
81: while ((pres = (HTProtocol *) HTList_nextObject(cur))) {
82: if (!strcmp(pres->name, name)) {
2.12 frystyk 83: HT_FREE(pres->name);
2.15 frystyk 84: HT_FREE(pres->transport);
2.5 frystyk 85: return HTList_removeObject(protocols, (void *) pres);
86: }
87: }
88: }
89: return NO;
90: }
91:
92: /*
2.10 frystyk 93: ** Returns the client callback function
2.5 frystyk 94: */
2.17 frystyk 95: PUBLIC HTProtCallback * HTProtocol_client (HTProtocol * protocol)
2.5 frystyk 96: {
2.10 frystyk 97: return protocol ? protocol->client : NULL;
98: }
99:
100: /*
101: ** Returns the server callback function
102: */
2.17 frystyk 103: PUBLIC HTProtCallback * HTProtocol_server (HTProtocol * protocol)
2.10 frystyk 104: {
105: return protocol ? protocol->server : NULL;
2.17 frystyk 106: }
107:
108: /*
109: ** Returns the default port
110: */
111: PUBLIC HTProtocolId HTProtocol_id (HTProtocol * protocol)
112: {
113: return protocol ? protocol->id : 0;
2.5 frystyk 114: }
115:
116: /*
2.11 frystyk 117: ** Returns YES if preemptive else NO
2.5 frystyk 118: */
2.11 frystyk 119: PUBLIC BOOL HTProtocol_preemptive (HTProtocol * protocol)
2.5 frystyk 120: {
2.11 frystyk 121: return protocol ? protocol->preemptive : NO;
2.3 frystyk 122: }
2.1 frystyk 123:
124: /*
125: ** Delete the list of registered access methods. This is called from
2.5 frystyk 126: ** within HTLibTerminate. Thanks to Eric Sink, eric@spyglass.com
2.1 frystyk 127: */
2.5 frystyk 128: PUBLIC BOOL HTProtocol_deleteAll (void)
2.1 frystyk 129: {
130: if (protocols) {
2.5 frystyk 131: HTList *cur = protocols;
132: HTProtocol *pres;
133: while ((pres = (HTProtocol *) HTList_nextObject(cur))) {
2.12 frystyk 134: HT_FREE(pres->name);
2.15 frystyk 135: HT_FREE(pres->transport);
2.12 frystyk 136: HT_FREE(pres);
2.5 frystyk 137: }
2.1 frystyk 138: HTList_delete(protocols);
139: protocols = NULL;
2.5 frystyk 140: return YES;
2.1 frystyk 141: }
2.5 frystyk 142: return NO;
2.1 frystyk 143: }
144:
145: /*
2.10 frystyk 146: ** Search registered protocols to find suitable protocol object.
147: ** Return protocol object or NULL
2.1 frystyk 148: */
2.13 frystyk 149: PUBLIC HTProtocol * HTProtocol_find (HTRequest * request, const char * access)
2.1 frystyk 150: {
2.19 ! frystyk 151: if (access) {
2.10 frystyk 152: HTList * cur = protocols;
153: HTProtocol * pres;
2.9 frystyk 154: if (cur) {
2.10 frystyk 155: while ((pres = (HTProtocol *) HTList_nextObject(cur))) {
156: if (!strcmp(pres->name, access)) return pres;
2.1 frystyk 157: }
158: }
2.19 ! frystyk 159: if (request)
! 160: HTRequest_addError(request, ERR_FATAL, NO, HTERR_CLASS, (char*) access,
! 161: (int) strlen(access), "HTProtocol_find");
2.1 frystyk 162: }
2.10 frystyk 163: return NULL;
2.1 frystyk 164: }
2.10 frystyk 165:
2.15 frystyk 166: /*
167: ** Get the transport name of this protocol
168: */
169: PUBLIC BOOL HTProtocol_setTransport (HTProtocol * protocol,
170: const char * transport)
171: {
172: if (protocol && transport) {
173: StrAllocCopy(protocol->transport, transport);
174: {
175: char *ptr = protocol->transport;
176: while ((*ptr = TOLOWER(*ptr))) ptr++;
177: }
178: return YES;
179: }
180: return NO;
181: }
182:
183: PUBLIC const char * HTProtocol_transport (HTProtocol * protocol)
184: {
185: return (protocol ? protocol->transport : NULL);
186: }
2.1 frystyk 187:
2.19 ! frystyk 188: PUBLIC const char * HTProtocol_name (HTProtocol * protocol)
! 189: {
! 190: return (protocol ? protocol->name : NULL);
! 191: }
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