4 * Entry point for GroupDAV functions
14 * Output HTTP headers which are common to all requests.
16 * Please observe that we don't use the usual output_headers()
17 * and wDumpContent() functions in the GroupDAV subsystem, so we
18 * do our own header stuff here.
21 void groupdav_common_headers(void) {
24 "Connection: close\r\n",
25 SERVER, serv_info.serv_software
32 * string conversion function
34 void euid_escapize(char *target, char *source) {
36 int target_length = 0;
39 for (i=0; i<strlen(source); ++i) {
40 if ( (isalnum(source[i])) || (source[i]=='-') || (source[i]=='_') ) {
41 target[target_length] = source[i];
42 target[++target_length] = 0;
45 sprintf(&target[target_length], "=%02X", source[i]);
52 * string conversion function
54 void euid_unescapize(char *target, char *source) {
57 int target_length = 0;
61 for (a = 0; a < strlen(source); ++a) {
62 if (source[a] == '=') {
63 hex[0] = source[a + 1];
64 hex[1] = source[a + 2];
67 sscanf(hex, "%02x", &b);
68 target[target_length] = b;
69 target[++target_length] = 0;
73 target[target_length] = source[a];
74 target[++target_length] = 0;
83 * Main entry point for GroupDAV requests
85 void groupdav_main(struct httprequest *req,
86 char *dav_content_type,
87 int dav_content_length,
90 struct httprequest *rptr;
92 char dav_pathname[256];
93 char dav_ifmatch[256];
98 strcpy(dav_method, "");
99 strcpy(dav_pathname, "");
100 strcpy(dav_ifmatch, "");
103 for (rptr=req; rptr!=NULL; rptr=rptr->next) {
104 if (!strncasecmp(rptr->line, "Host: ", 6)) {
105 if (strlen(WC->http_host) == 0) {
106 safestrncpy(WC->http_host, &rptr->line[6],
107 sizeof WC->http_host);
110 if (!strncasecmp(rptr->line, "If-Match: ", 10)) {
111 safestrncpy(dav_ifmatch, &rptr->line[10],
114 if (!strncasecmp(rptr->line, "Depth: ", 7)) {
115 if (!strcasecmp(&rptr->line[7], "infinity")) {
118 else if (!strcmp(&rptr->line[7], "0")) {
121 else if (!strcmp(&rptr->line[7], "1")) {
127 if (!WC->logged_in) {
128 wprintf("HTTP/1.1 401 Unauthorized\r\n");
129 groupdav_common_headers();
130 wprintf("WWW-Authenticate: Basic realm=\"%s\"\r\n",
131 serv_info.serv_humannode);
132 wprintf("Content-Length: 0\r\n\r\n");
136 extract_token(dav_method, req->line, 0, ' ', sizeof dav_method);
137 extract_token(dav_pathname, req->line, 1, ' ', sizeof dav_pathname);
138 unescape_input(dav_pathname);
140 /* If the request does not begin with "/groupdav", prepend it. If
141 * we happen to introduce a double-slash, that's ok; we'll strip it
144 * (THIS IS DISABLED BECAUSE WE ARE NOW TRYING TO DO REAL DAV.)
146 if (strncasecmp(dav_pathname, "/groupdav", 9)) {
148 snprintf(buf, sizeof buf, "/groupdav/%s", dav_pathname);
149 safestrncpy(dav_pathname, buf, sizeof dav_pathname);
154 /* Remove any stray double-slashes in pathname */
155 while (ds=strstr(dav_pathname, "//"), ds != NULL) {
160 * If there's an If-Match: header, strip out the quotes if present, and
161 * then if all that's left is an asterisk, make it go away entirely.
163 if (strlen(dav_ifmatch) > 0) {
164 striplt(dav_ifmatch);
165 if (dav_ifmatch[0] == '\"') {
166 strcpy(dav_ifmatch, &dav_ifmatch[1]);
167 for (i=0; i<strlen(dav_ifmatch); ++i) {
168 if (dav_ifmatch[i] == '\"') {
173 if (!strcmp(dav_ifmatch, "*")) {
174 strcpy(dav_ifmatch, "");
179 * The OPTIONS method is not required by GroupDAV. This is an
180 * experiment to determine what might be involved in supporting
181 * other variants of DAV in the future.
183 if (!strcasecmp(dav_method, "OPTIONS")) {
184 groupdav_options(dav_pathname);
189 * The PROPFIND method is basically used to list all objects in a
190 * room, or to list all relevant rooms on the server.
192 if (!strcasecmp(dav_method, "PROPFIND")) {
193 groupdav_propfind(dav_pathname, dav_depth,
194 dav_content_type, dav_content);
199 * The GET method is used for fetching individual items.
201 if (!strcasecmp(dav_method, "GET")) {
202 groupdav_get(dav_pathname);
207 * The PUT method is used to add or modify items.
209 if (!strcasecmp(dav_method, "PUT")) {
210 groupdav_put(dav_pathname, dav_ifmatch,
211 dav_content_type, dav_content,
217 * The DELETE method kills, maims, and destroys.
219 if (!strcasecmp(dav_method, "DELETE")) {
220 groupdav_delete(dav_pathname, dav_ifmatch);
225 * Couldn't find what we were looking for. Die in a car fire.
227 wprintf("HTTP/1.1 501 Method not implemented\r\n");
228 groupdav_common_headers();
229 wprintf("Content-Type: text/plain\r\n"
231 "GroupDAV method \"%s\" is not implemented.\r\n",
238 * Output our host prefix for globally absolute URL's.
240 void groupdav_identify_host(void) {
241 if (strlen(WC->http_host) > 0) {
243 (is_https ? "https" : "http"),