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40 #include <tr_cfgwatch.h>
43 #if JANSSON_VERSION_HEX < 0x020500
44 #include "jansson_iterators.h"
47 static TR_CONSTRAINT *tr_cfg_parse_one_constraint(TALLOC_CTX *mem_ctx, char *ctype, json_t *jc, TR_CFG_RC *rc)
49 TR_CONSTRAINT *cons=NULL;
52 if ((!ctype) || (!jc) || (!rc) ||
53 (!json_is_array(jc)) ||
54 (0 >= json_array_size(jc)) ||
55 (TR_MAX_CONST_MATCHES < json_array_size(jc)) ||
56 (!json_is_string(json_array_get(jc, 0)))) {
57 tr_err("tr_cfg_parse_one_constraint: config error.");
62 if (NULL==(cons=tr_constraint_new(mem_ctx))) {
63 tr_debug("tr_cfg_parse_one_constraint: Out of memory (cons).");
68 if (NULL==(cons->type=tr_new_name(ctype))) {
69 tr_err("tr_cfg_parse_one_constraint: Out of memory (type).");
71 tr_constraint_free(cons);
75 for (i=0; i < json_array_size(jc); i++) {
76 cons->matches[i]=tr_new_name(json_string_value(json_array_get(jc, i)));
77 if (cons->matches[i]==NULL) {
78 tr_err("tr_cfg_parse_one_constraint: Out of memory (match %d).", i+1);
80 tr_constraint_free(cons);
88 static TR_FILTER *tr_cfg_parse_one_filter(TALLOC_CTX *mem_ctx, json_t *jfilt, TR_FILTER_TYPE ftype, TR_CFG_RC *rc)
90 TALLOC_CTX *tmp_ctx = talloc_new(NULL);
91 TR_FILTER *filt = NULL;
92 TR_FLINE *fline = NULL;
93 TR_FSPEC *fspec = NULL;
94 json_t *jfaction = NULL;
95 json_t *jfline = NULL;
96 json_t *jfspecs = NULL;
97 json_t *this_jfspec = NULL;
98 json_t *jfield = NULL;
99 json_t *jmatch = NULL;
102 json_t *this_jmatch = NULL;
103 TR_NAME *name = NULL;
104 size_t i = 0, j = 0, k = 0;
108 if ((jfilt == NULL) || (rc == NULL)) {
109 tr_err("tr_cfg_parse_one_filter: null argument");
110 *rc = TR_CFG_BAD_PARAMS;
114 if (NULL == (filt = tr_filter_new(tmp_ctx))) {
115 tr_err("tr_cfg_parse_one_filter: Out of memory.");
119 tr_filter_set_type(filt, ftype);
121 /* For each entry in the filter... */
122 json_array_foreach(jfilt, i, jfline) {
123 if ((NULL == (jfaction = json_object_get(jfline, "action"))) ||
124 (!json_is_string(jfaction))) {
125 tr_debug("tr_cfg_parse_one_filter: Error parsing filter action.");
126 *rc = TR_CFG_NOPARSE;
130 if ((NULL == (jfspecs = json_object_get(jfline, "specs"))) ||
131 (!json_is_array(jfspecs)) ||
132 (0 == json_array_size(jfspecs))) {
133 tr_debug("tr_cfg_parse_one_filter: Error parsing filter specs.");
134 *rc = TR_CFG_NOPARSE;
138 fline = tr_fline_new(tmp_ctx);
140 tr_debug("tr_cfg_parse_one_filter: Out of memory allocating filter line %d.", i);
144 if (!strcmp(json_string_value(jfaction), "accept")) {
145 fline->action = TR_FILTER_ACTION_ACCEPT;
146 tr_debug("tr_cfg_parse_one_filter: Filter action is 'accept'");
148 } else if (!strcmp(json_string_value(jfaction), "reject")) {
149 fline->action = TR_FILTER_ACTION_REJECT;
150 tr_debug("tr_cfg_parse_one_filter: Filter action is 'reject'");
152 tr_debug("tr_cfg_parse_one_filter: Error parsing filter action, unknown action '%s'.",
153 json_string_value(jfaction));
154 *rc = TR_CFG_NOPARSE;
158 if (NULL != (jrc = json_object_get(jfline, "realm_constraints"))) {
159 if (!json_is_array(jrc)) {
160 tr_err("tr_cfg_parse_one_filter: cannot parse realm_constraints, not an array.");
161 *rc = TR_CFG_NOPARSE;
163 } else if (json_array_size(jrc) > TR_MAX_CONST_MATCHES) {
164 tr_err("tr_cfg_parse_one_filter: realm_constraints has too many entries, maximum of %d.",
165 TR_MAX_CONST_MATCHES);
166 *rc = TR_CFG_NOPARSE;
168 } else if (json_array_size(jrc) > 0) {
169 /* ok we actually have entries to process */
170 if (NULL == (fline->realm_cons = tr_cfg_parse_one_constraint(fline, "realm", jrc, rc))) {
171 tr_debug("tr_cfg_parse_one_filter: Error parsing realm constraint");
172 *rc = TR_CFG_NOPARSE;
178 if (NULL != (jdc = json_object_get(jfline, "domain_constraints"))) {
179 if (!json_is_array(jdc)) {
180 tr_err("tr_cfg_parse_one_filter: cannot parse domain_constraints, not an array.");
181 *rc = TR_CFG_NOPARSE;
183 } else if (json_array_size(jdc) > TR_MAX_CONST_MATCHES) {
184 tr_err("tr_cfg_parse_one_filter: domain_constraints has too many entries, maximum of %d.",
185 TR_MAX_CONST_MATCHES);
186 *rc = TR_CFG_NOPARSE;
188 } else if (json_array_size(jdc) > 0) {
189 if (NULL == (fline->domain_cons = tr_cfg_parse_one_constraint(fline, "domain", jdc, rc))) {
190 tr_debug("tr_cfg_parse_one_filter: Error parsing domain constraint");
191 *rc = TR_CFG_NOPARSE;
197 /*For each filter spec within the filter line... */
198 tr_debug("tr_cfg_parse_one_filter: Filter line has %d spec(s)", json_array_size(jfspecs));
199 json_array_foreach(jfspecs, j, this_jfspec) {
200 if ((NULL == (jfield = json_object_get(this_jfspec, "field"))) ||
201 (!json_is_string(jfield))) {
202 tr_debug("tr_cfg_parse_one_filter: Error parsing filter: missing field for filer spec %d, filter line %d.", i,
204 *rc = TR_CFG_NOPARSE;
208 /* check that we have a match attribute */
209 if (NULL == (jmatch = json_object_get(this_jfspec, "match"))) {
210 tr_debug("tr_cfg_parse_one_filter: Error parsing filter: missing match for filer spec %d, filter line %d.", i,
212 *rc = TR_CFG_NOPARSE;
216 /* check that match is a string or an array */
217 if ((!json_is_string(jmatch)) && (!json_is_array(jmatch))) {
219 "tr_cfg_parse_one_filter: Error parsing filter: match not a string or array for filter spec %d, filter line %d.",
221 *rc = TR_CFG_NOPARSE;
225 /* allocate the filter spec */
226 if (NULL == (fspec = tr_fspec_new(fline))) {
227 tr_debug("tr_cfg_parse_one_filter: Out of memory.");
232 /* fill in the field */
233 if (NULL == (fspec->field = tr_new_name(json_string_value(jfield)))) {
234 tr_debug("tr_cfg_parse_one_filter: Out of memory.");
239 /* fill in the matches */
240 if (json_is_string(jmatch)) {
241 if (NULL == (name = tr_new_name(json_string_value(jmatch)))) {
242 tr_debug("tr_cfg_parse_one_filter: Out of memory.");
246 tr_fspec_add_match(fspec, name);
248 /* jmatch is an array (we checked earlier) */
249 json_array_foreach(jmatch, k, this_jmatch) {
250 if (NULL == (name = tr_new_name(json_string_value(this_jmatch)))) {
251 tr_debug("tr_cfg_parse_one_filter: Out of memory.");
255 tr_fspec_add_match(fspec, name);
258 if (!tr_filter_validate_spec_field(ftype, fspec)) {
259 tr_debug("tr_cfg_parse_one_filter: Invalid filter field \"%.*s\" for %s filter, spec %d, filter %d.",
262 tr_filter_type_to_string(filt->type),
268 if (tr_fline_add_spec(fline, fspec) == NULL) {
269 tr_debug("tr_cfg_parse_one_filter: Unable to add spec %d to line %d of %s filter.",
270 j, i, tr_filter_type_to_string(filt->type));
274 if (NULL == tr_filter_add_line(filt, fline)) {
275 tr_debug("tr_cfg_parse_one_filter: Error adding line %d for %s filter",
276 i, tr_filter_type_to_string(filt->type));
280 tr_debug("tr_cfg_parse_one_filter: Added line %d to %s filter", i, tr_filter_type_to_string(filt->type));
283 /* check that the filter is valid */
284 if (!tr_filter_validate(filt)) {
287 *rc = TR_CFG_SUCCESS;
288 talloc_steal(mem_ctx, filt);
292 talloc_free(tmp_ctx);
293 if (*rc!=TR_CFG_SUCCESS)
298 TR_FILTER_SET *tr_cfg_parse_filters(TALLOC_CTX *mem_ctx, json_t *jfilts, TR_CFG_RC *rc)
300 TALLOC_CTX *tmp_ctx=talloc_new(NULL);
302 const char *filt_label=NULL;
303 TR_FILTER *filt=NULL;
304 TR_FILTER_SET *filt_set=NULL;
305 TR_FILTER_TYPE filt_type=TR_FILTER_TYPE_UNKNOWN;
315 filt_set=tr_filter_set_new(tmp_ctx);
316 if (filt_set==NULL) {
317 tr_debug("tr_cfg_parse_filters: Unable to allocate filter set.");
322 json_object_foreach(jfilts, filt_label, jfilt) {
323 /* check that we got a filter */
325 tr_debug("tr_cfg_parse_filters: Definition for %s filter is missing.", filt_label);
326 *rc = TR_CFG_NOPARSE;
330 /* check that we recognize the filter type */
331 filt_type=tr_filter_type_from_string(filt_label);
332 if (filt_type==TR_FILTER_TYPE_UNKNOWN) {
333 tr_debug("tr_cfg_parse_filters: Unrecognized filter (%s) defined.", filt_label);
334 *rc = TR_CFG_NOPARSE;
338 /* finally, parse the filter */
339 tr_debug("tr_cfg_parse_filters: Found %s filter.", filt_label);
340 filt = tr_cfg_parse_one_filter(tmp_ctx, jfilt, filt_type, rc);
341 if (*rc != TR_CFG_SUCCESS) {
342 tr_debug("tr_cfg_parse_filters: Error parsing %s filter.", filt_label);
343 *rc = TR_CFG_NOPARSE;
346 if (tr_filter_set_add(filt_set, filt) != 0) {
347 tr_debug("tr_cfg_parse_filters: Error adding %s filter to filter set.", filt_label);
348 *rc = TR_CFG_NOPARSE;
356 if (*rc==TR_CFG_SUCCESS)
357 talloc_steal(mem_ctx, filt_set);
358 else if (filt_set!=NULL) {
359 talloc_free(filt_set);
363 talloc_free(tmp_ctx);