2 * Copyright (c) 2018 JANET(UK)
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6 * modification, are permitted provided that the following conditions
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10 * notice, this list of conditions and the following disclaimer.
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38 #include <tr_filter.h>
40 /* helper for below */
41 #define OBJECT_SET_OR_FAIL(jobj, key, val) \
44 json_object_set_new((jobj),(key),(val)); \
49 #define ARRAY_APPEND_OR_FAIL(jary, val) \
52 json_array_append_new((jary),(val)); \
58 typedef json_t *(ITEM_ENCODER_FUNC)(void *);
60 static json_t *items_to_json_array(void *items[], ITEM_ENCODER_FUNC *item_encoder, size_t max_items)
63 json_t *jarray = json_array();
64 json_t *retval = NULL;
69 for (ii=0; ii<max_items; ii++) {
70 if (items[ii] != NULL)
71 ARRAY_APPEND_OR_FAIL(jarray, item_encoder(items[ii]));
84 static json_t *tr_matches_to_json_array(TR_FSPEC *fspec)
86 json_t *jarray = json_array();
87 json_t *retval = NULL;
88 TR_FSPEC_ITER *iter = tr_fspec_iter_new(NULL);
89 TR_NAME *this_match = NULL;
91 if ((jarray == NULL) || (iter == NULL))
94 this_match = tr_fspec_iter_first(iter, fspec);
96 ARRAY_APPEND_OR_FAIL(jarray, tr_name_to_json_string(this_match));
97 this_match = tr_fspec_iter_next(iter);
107 tr_fspec_iter_free(iter);
112 static json_t *tr_fspec_to_json(TR_FSPEC *fspec)
114 json_t *fspec_json = NULL;
115 json_t *retval = NULL;
117 fspec_json = json_object();
118 if (fspec_json == NULL)
121 OBJECT_SET_OR_FAIL(fspec_json, "field",
122 tr_name_to_json_string(fspec->field));
123 OBJECT_SET_OR_FAIL(fspec_json, "matches",
124 tr_matches_to_json_array(fspec));
126 /* succeeded - set the return value and increment the reference count */
132 json_decref(fspec_json);
136 static json_t *tr_fspecs_to_json_array(TR_FLINE *fline)
138 json_t *jarray = json_array();
139 json_t *retval = NULL;
140 TR_FLINE_ITER *iter = tr_fline_iter_new(NULL);
141 TR_FSPEC *this_fspec = NULL;
143 if ((jarray == NULL) || (iter == NULL))
146 this_fspec = tr_fline_iter_first(iter, fline);
148 ARRAY_APPEND_OR_FAIL(jarray, tr_fspec_to_json(this_fspec));
149 this_fspec = tr_fline_iter_next(iter);
159 tr_fline_iter_free(iter);
164 static json_t *tr_fline_to_json(TR_FLINE *fline)
166 json_t *fline_json = NULL;
167 json_t *retval = NULL;
169 fline_json = json_object();
170 if (fline_json == NULL)
173 OBJECT_SET_OR_FAIL(fline_json, "action",
174 json_string( (fline->action == TR_FILTER_ACTION_ACCEPT) ? "accept" : "reject"));
175 OBJECT_SET_OR_FAIL(fline_json, "specs",
176 tr_fspecs_to_json_array(fline));
177 if (fline->realm_cons) {
178 OBJECT_SET_OR_FAIL(fline_json, "realm_constraints",
179 items_to_json_array((void **) fline->realm_cons->matches,
180 (ITEM_ENCODER_FUNC *) tr_name_to_json_string,
181 TR_MAX_CONST_MATCHES));
183 if (fline->domain_cons) {
184 OBJECT_SET_OR_FAIL(fline_json, "domain_constraints",
185 items_to_json_array((void **) fline->domain_cons->matches,
186 (ITEM_ENCODER_FUNC *) tr_name_to_json_string,
187 TR_MAX_CONST_MATCHES));
190 /* succeeded - set the return value and increment the reference count */
196 json_decref(fline_json);
200 static json_t *tr_flines_to_json_array(TR_FILTER *filt)
202 json_t *jarray = json_array();
203 json_t *retval = NULL;
204 TR_FILTER_ITER *iter = tr_filter_iter_new(NULL);
205 TR_FLINE *this_fline = NULL;
207 if ((jarray == NULL) || (iter == NULL))
210 this_fline = tr_filter_iter_first(iter, filt);
212 ARRAY_APPEND_OR_FAIL(jarray, tr_fline_to_json(this_fline));
213 this_fline = tr_filter_iter_next(iter);
223 tr_filter_iter_free(iter);
227 json_t *tr_filter_set_to_json(TR_FILTER_SET *filter_set)
229 json_t *fset_json = NULL;
230 json_t *retval = NULL;
231 TR_FILTER *filt = NULL;
232 TR_FILTER_TYPE *filt_type = NULL;
233 TR_FILTER_TYPE types[] = {
234 TR_FILTER_TYPE_TID_INBOUND,
235 TR_FILTER_TYPE_TRP_INBOUND,
236 TR_FILTER_TYPE_TRP_OUTBOUND,
237 TR_FILTER_TYPE_UNKNOWN /* list terminator */
240 fset_json = json_object();
241 if (fset_json == NULL)
244 for (filt_type = types; *filt_type != TR_FILTER_TYPE_UNKNOWN; filt_type++) {
245 filt = tr_filter_set_get(filter_set, *filt_type);
247 OBJECT_SET_OR_FAIL(fset_json, tr_filter_type_to_string(*filt_type),
248 tr_flines_to_json_array(filt));
252 /* succeeded - set the return value and increment the reference count */
258 json_decref(fset_json);