#include "webcit.h"
-// Shorthand for the XML namespace of CalDAV
-#define CAL "urn:ietf:params:xml:ns:caldav:"
-#define CALLEN sizeof(CAL)-1
+#define CAL "urn:ietf:params:xml:ns:caldav:" // Shorthand for the XML namespace of CalDAV
+#define CALLEN sizeof(CAL)-1 // And the length of that string
// A CalDAV REPORT can only be one type. This is stored in the report_type member.
enum cr_type {
}
-// Called by caldav_apply_filters() to apply ONE filter.
-// Returns 0 if the calendar item does not match the filter.
-// Returns 1 if the calendar item DOES match the filter.
-int caldav_apply_one_filter(void *cal, char *filter) {
- syslog(LOG_DEBUG, "applying filter: %s", filter);
-
- char this_filter[SIZ]; // we have to copy the filter string because we will destructively tokenize it
- safestrncpy(this_filter, filter, sizeof(this_filter));
-
- char *t[10] = { NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL } ;
- char *f = this_filter;
- int num_tokens = 0;
- while ( (t[num_tokens]=strtok_r(f, "|", &f)) && (num_tokens<10) ) {
- ++num_tokens;
- }
-
- // BEGIN experimental block -- see what happens when we cast to the wrong type
-
- //icalcomponent *foo_comp = (icalcomponent *) cal;
- //icalproperty *foo_prop = (icalproperty *) cal;
- //icalparameter *foo_param = (icalparameter *) cal;
-
- // END experimental block
-
- // Handle the individual filters defined in RFC4791 9.7.1 through 9.7.5
-
- if (!strcasecmp(t[1], "comp-filter")) { // RFC4791 9.7.1 - filter by component
- syslog(LOG_DEBUG, "component filter FIXME not implemented yet");
- if (icalcomponent_isa_component(cal)) {
- syslog(LOG_DEBUG, "\033[32m yes this is a component \033[0m");
- }
- else {
- syslog(LOG_DEBUG, "\033[31m no this is not a component \033[0m");
+// Recursive function to apply CalDAV FILTERS to a calendar item.
+// Returns zero if the calendar item was disqualified by a filter, nonzero if the calendar item still qualifies.
+int caldav_apply_filters(void *cal, Array *filters) {
+
+ int f = 0; // filter number iterator
+ int qual = 1; // 0 for disqualify, 1 for qualify
+
+ while ( (f<array_len(filters)) && (qual) ) {
+ syslog(LOG_DEBUG, "caldav_apply_filters(%d) %s", f, array_get_element_at(filters, f) );
+
+ // Tokenize the filter (a future performance hack would be to pre-tokenize instead of storing delimited strings)
+ char this_filter[SIZ];
+ safestrncpy(this_filter, array_get_element_at(filters, f), sizeof(this_filter));
+ char *t[10] = { NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL } ;
+ char *ft = this_filter;
+ int num_tokens = 0;
+ while ( (t[num_tokens]=strtok_r(ft, "|", &ft)) && (num_tokens<10) ) {
+ ++num_tokens;
}
- }
+ int level = atoi(t[0]);
- else if (!strcasecmp(t[1], "prop-filter")) { // RFC4791 9.7.2 - filter by property
- syslog(LOG_DEBUG, "property filter FIXME not implemented yet");
- }
+ // Handle the individual filters defined in RFC4791 9.7.1 through 9.7.5
- else if (!strcasecmp(t[1], "param-filter")) { // RFC4791 9.7.3 - filter by parameter
- syslog(LOG_DEBUG, "parameter filter FIXME not implemented yet");
- }
-
- else if (!strcasecmp(t[1], "is-not-defined")) { // RFC4791 9.7.4
- syslog(LOG_DEBUG, "is-not-defined filter FIXME not implemented yet");
- }
-
- else if (!strcasecmp(t[1], "text-match")) { // RFC4791 9.7.5
- syslog(LOG_DEBUG, "text match filter FIXME not implemented yet");
- }
+ if (!strcasecmp(t[1], "comp-filter")) { // RFC4791 9.7.1 - filter by component
+ syslog(LOG_DEBUG, "component filter at level %d FIXME not implemented yet", level);
+ if (icalcomponent_isa_component(cal)) {
+ // yes this is a component
+ }
+ }
- return(1);
-}
+ else if (!strcasecmp(t[1], "prop-filter")) { // RFC4791 9.7.2 - filter by property
+ syslog(LOG_DEBUG, "property filter FIXME not implemented yet");
+ }
+ else if (!strcasecmp(t[1], "param-filter")) { // RFC4791 9.7.3 - filter by parameter
+ syslog(LOG_DEBUG, "parameter filter FIXME not implemented yet");
+ }
-// Recursive function to apply CalDAV FILTERS to a calendar item.
-// Returns zero if the calendar item was disqualified by a filter, nonzero if the calendar item still qualifies.
-int caldav_apply_filters(void *cal, Array *filters, int index) {
+ else if (!strcasecmp(t[1], "is-not-defined")) { // RFC4791 9.7.4
+ syslog(LOG_DEBUG, "is-not-defined filter FIXME not implemented yet");
+ }
- // Apply *this* filter.
- if (caldav_apply_one_filter(cal, array_get_element_at(filters, index)) == 0) {
- return(0);
- }
+ else if (!strcasecmp(t[1], "text-match")) { // RFC4791 9.7.5
+ syslog(LOG_DEBUG, "text match filter FIXME not implemented yet");
+ }
- // If we get to this point, the current filter has passed, and we move on to the next one.
- if (index < array_len(filters)-1) {
- return(caldav_apply_filters(cal, filters, index+1));
+ ++f;
}
- // If we got this far, every filter passed, and the calendar item qualifies for output.
- return(1);
+ return(qual);
}
int qualify = 1;
// If there was a filter stanza, run this calendar item through the filters.
- qualify = caldav_apply_filters(cal, crp.filters, 0);
+ qualify = caldav_apply_filters(cal, crp.filters);
syslog(LOG_DEBUG, "Message %ld does%s qualify", m, (qualify ? "" : " NOT"));
// Did this calendar item match the query? If so, output it.