jansson: exported jansson_get(...) to kemi framework

- jansson.get(...)

src/modules/jansson/jansson_funcs.c

@@ -31,38 +31,23 @@
 #include "jansson_funcs.h"
 #include "jansson_utils.h"
 
-int janssonmod_get(struct sip_msg* msg, char* path_in, char* src_in, char* dst)
+int janssonmod_get_helper(sip_msg_t* msg, str *path_s, str *src_s, pv_spec_t *dst_pv)
 {
-	str src_s;
-	str path_s;
-	pv_spec_t *dst_pv;
-	pv_value_t dst_val;
-
-	if (fixup_get_svalue(msg, (gparam_p)src_in, &src_s) != 0) {
-		ERR("cannot get json string value\n");
-		return -1;
-	}
-
-	if (fixup_get_svalue(msg, (gparam_p)path_in, &path_s) != 0) {
-		ERR("cannot get path string value\n");
-		return -1;
-	}
-
-	dst_pv = (pv_spec_t *)dst;
 
+	pv_value_t dst_val;
 	json_t* json = NULL;
 	json_error_t parsing_error;
 
-	json = json_loads(src_s.s, JSON_REJECT_DUPLICATES, &parsing_error);
+	json = json_loads(src_s->s, JSON_REJECT_DUPLICATES, &parsing_error);
 
 	if(!json) {
-		ERR("failed to parse: %.*s\n", src_s.len, src_s.s);
+		ERR("failed to parse: %.*s\n", src_s->len, src_s->s);
 		ERR("json error at line %d: %s\n",
 				parsing_error.line, parsing_error.text);
 		goto fail;
 	}
 
-	char* path = path_s.s;
+	char* path = path_s->s;
 
 	json_t* v = json_path_get(json, path);
 	if(!v) {
@@ -87,6 +72,24 @@ fail:
 	return -1;
 }
 
+int janssonmod_get(struct sip_msg* msg, char* path_in, char* src_in, char* dst)
+{
+	str src_s;
+	str path_s;
+
+	if (fixup_get_svalue(msg, (gparam_p)src_in, &src_s) != 0) {
+		ERR("cannot get json string value\n");
+		return -1;
+	}
+
+	if (fixup_get_svalue(msg, (gparam_p)path_in, &path_s) != 0) {
+		ERR("cannot get path string value\n");
+		return -1;
+	}
+
+	return janssonmod_get_helper(msg, &path_s, &src_s, (pv_spec_t *)dst);
+}
+
 #define STR_EQ_STATIC(a,b) ((a.len == sizeof(b)-1) && (strncmp(a.s, b, sizeof(b)-1)==0))
 
 int janssonmod_set(unsigned int append, struct sip_msg* msg, char* type_in,

src/modules/jansson/jansson_funcs.h

@@ -31,5 +31,7 @@ int janssonmod_set(unsigned int append, struct sip_msg* msg, char* type_in,
 		char* path_in, char* value_in, char* result);
 int janssonmod_array_size(struct sip_msg* msg, char* json_in,
 		char* path_in, char* dst);
+int janssonmod_get_helper(sip_msg_t* msg, str *path_s, str *src_s,
+		pv_spec_t *dst_pv);
 
 #endif

src/modules/jansson/jansson_mod.c

@@ -25,6 +25,7 @@
 
 #include "../../core/mod_fix.h"
 #include "../../core/sr_module.h"
+#include "../../core/kemi.h"
 
 #include "jansson_funcs.h"
 #include "jansson_utils.h"
@@ -147,3 +148,46 @@ static int fixup_set_params_free(void** param, int param_no)
 static int mod_init(void) {
 	return 0;
 }
+
+/**
+ *
+ */
+static int ki_jansson_get(sip_msg_t *msg, str *spath, str *sdoc, str *spv)
+{
+	pv_spec_t *pvs = NULL;
+
+	pvs = pv_cache_get(spv);
+	if(pvs==NULL) {
+		LM_ERR("cannot get pv spec for [%.*s]\n", spv->len, spv->s);
+		return -1;
+	}
+
+	if(pvs->setf==NULL) {
+		LM_ERR("read only output var [%.*s]\n", spv->len, spv->s);
+		return -1;
+	}
+
+	return janssonmod_get_helper(msg, spath, sdoc, pvs);
+}
+
+/**
+ *
+ */
+static sr_kemi_t sr_kemi_jansson_exports[] = {
+	{ str_init("jansson"), str_init("get"),
+		SR_KEMIP_INT, ki_jansson_get,
+		{ SR_KEMIP_STR, SR_KEMIP_STR, SR_KEMIP_STR,
+			SR_KEMIP_NONE, SR_KEMIP_NONE, SR_KEMIP_NONE }
+	},
+
+	{{0, 0}, {0, 0}, 0, NULL, {0, 0, 0, 0, 0, 0}}
+};
+
+/**
+ *
+ */
+int mod_register(char *path, int *dlflags, void *p1, void *p2)
+{
+	sr_kemi_modules_add(sr_kemi_jansson_exports);
+	return 0;
+}