/**
* root of the JSON being parsed
*/
-struct json_object *root;
+struct json_object *root = NULL;
+struct json_object *d_perms = NULL;
+struct json_object *a_perms = NULL;
const char *init = NULL;
const char *start = NULL;
const char *onevent = NULL;
return path.object;
}
-char *get_perm_string(struct json_object *o, int *pl)
-{
- struct json_object *x, *y;
- char *a, *b, *c;
- int l, n, i, L;
-
- /* value for permission */
- if (json_object_object_get_ex(o, "permission", &x)) {
- if (!json_object_is_type(x, json_type_string)) {
- fprintf(stderr, "permission must be a string. Was: %s\n", json_object_get_string(o));
- exit(1);
- }
- a = strdup(json_object_get_string(x));
- oom(a);
- *pl = 0;
- return a;
- }
-
- /* value for not */
- if (json_object_object_get_ex(o, "not", &x)) {
- a = get_perm_string(x, &l);
- b = malloc(6 + strlen(a));
- oom(b);
- if (l)
- stpcpy(stpcpy(stpcpy(b,"not("),a),")");
- else
- stpcpy(stpcpy(b,"not "),a);
- free(a);
- *pl = 0;
- return b;
- }
-
- /* value for and or or */
- if (json_object_object_get_ex(o, "allOf", &x))
- L = 1;
- else if (json_object_object_get_ex(o, "anyOf", &x))
- L = 2;
- else {
- fprintf(stderr, "unrecognized permission. Was: %s\n", json_object_get_string(o));
- exit(1);
- }
-
- /* check the array */
- if (!json_object_is_type(x, json_type_array)) {
- fprintf(stderr, "sequence must be an array. Was: %s\n", json_object_get_string(o));
- exit(1);
- }
- n = json_object_array_length(x);
- if (n == 0) {
- fprintf(stderr, "invalid empty sequence. Was: %s\n", json_object_get_string(o));
- exit(1);
- }
-
- /* process the array */
- if (n == 1)
- return get_perm_string(json_object_array_get_idx(x, 0), pl);
- b = NULL;
- i = 0;
- while (i != n) {
- y = json_object_array_get_idx(x, i);
- a = get_perm_string(y, &l);
- if (l > L) {
- c = malloc(3 + strlen(a));
- oom(c);
- stpcpy(stpcpy(stpcpy(c,"("),a),")");
- free(a);
- a = c;
- }
- if (!b)
- b = a;
- else {
- c = malloc(6 + strlen(a) + strlen(b));
- oom(c);
- stpcpy(stpcpy(stpcpy(c,b),L==2?" or ":" and "),a);
- free(a);
- free(b);
- b = c;
- }
- i++;
- }
- *pl = L;
- return b;
-}
-
-struct json_object *make_perm(struct json_object *o)
-{
- int l;
- char *permstr = get_perm_string(o, &l);
- return json_object_new_string(permstr);
-}
-
-void make_permissions(struct path path)
-{
- struct json_object *o, *x, *y;
- struct json_object_iterator ji, jn;
-
- if (json_object_object_get_ex(path.object, "permissions", &o)) {
-
- /* expand $refs of permissions */
- x = expand_$ref((struct path){ .object = o, .upper = &path });
- if (x != o)
- json_object_object_add(path.object, "permissions", x);
-
- /* makes the permissions */
- ji = json_object_iter_begin(o);
- jn = json_object_iter_end(o);
- while (!json_object_iter_equal(&ji, &jn)) {
- x = json_object_iter_peek_value(&ji);
- y = make_perm(x);
- if (x != y)
- json_object_object_add(o, json_object_iter_peek_name(&ji), y);
- json_object_iter_next(&ji);
- }
- }
-}
char *make_desc(struct json_object *o)
{
return desc;
}
-void print_verbs(int real)
+struct json_object *permissions_of_verb(struct json_object *obj)
{
- struct json_object_iterator ji, jn;
- struct json_object *o, *v, *x, *y;
- const char *verb, *perm, *loa;
- int i, n, l;
- const char **verbs;
+ struct json_object *x, *y;
- /* search the verbs */
- o = search("#/verbs");
- if (!o)
- return;
+ if (json_object_object_get_ex(obj, "x-permissions", &x))
+ return x;
- /* list the verbs and sort it */
- n = json_object_object_length(o);
- verbs = malloc(n * sizeof *verbs);
- oom(verbs);
- n = 0;
- ji = json_object_iter_begin(o);
- jn = json_object_iter_end(o);
- while (!json_object_iter_equal(&ji, &jn)) {
- verb = json_object_iter_peek_name(&ji);
+ if (json_object_object_get_ex(obj, "get", &x))
+ if (json_object_object_get_ex(x, "x-permissions", &y))
+ return y;
+
+ return NULL;
+}
+
+void print_perms()
+{
+ int i, n;
+
+ n = a_perms ? json_object_array_length(a_perms) : 0;
+ if (n) {
+ printf("static const struct afb_auth _afb_auths_v2_%s[] = {\n" , api);
i = 0;
- while (i < n && strcasecmp(verb, verbs[i]) > 0)
- i++;
- if (i < n)
- memmove(verbs + i + 1, verbs + i, (n - i) * sizeof *verbs);
- verbs[i] = verb;
- n++;
- json_object_iter_next(&ji);
+ while (i < n) {
+ printf("\t{ %s }", json_object_get_string(json_object_array_get_idx(a_perms, i)));
+ printf(",\n"+(++i == n));
+ }
+ printf("};\n\n");
}
+}
- /* emit the verbs */
- for (i = 0 ; i < n ; i++) {
- verb = verbs[i];
- json_object_object_get_ex(o, verb, &v);
+struct json_object *new_perm(struct json_object *obj, const char *desc)
+{
+ const char *tag;
+ char *b;
+ struct json_object *x, *y;
- if (real) {
- if (!json_object_object_get_ex(v, "permissions", &x))
- perm = "NULL";
- else {
- perm = json_object_to_json_string(x);
- }
- l = 0;
- loa = "";
- if (json_object_object_get_ex(v, "LOA", &x)) {
- if (json_object_is_type(x, json_type_int)) {
- loa = "AFB_SESSION_LOA_EQ_";
- y = x;
- } else {
- if (json_object_object_get_ex(x, "minimum", &y))
- loa = "AFB_SESSION_LOA_GE_";
- else if (json_object_object_get_ex(x, "maximum", &y))
- loa = "AFB_SESSION_LOA_LE_";
- else
- y = NULL;
- if (y && !json_object_is_type(y, json_type_int))
- y = NULL;
- }
- l = json_object_get_int(y);
- if (y == NULL || l < 0 || l > 3) {
- fprintf(stderr, "invalid LOA spec. Was: %s", json_object_get_string(x));
- exit(1);
- }
- }
+ tag = obj ? json_object_to_json_string_ext(obj, 0) : desc;
+ if (!json_object_object_get_ex(d_perms, tag, &y)) {
+ if (!d_perms) {
+ d_perms = json_object_new_object();
+ a_perms = json_object_new_array();
+ }
+
+ asprintf(&b, "&_afb_auths_v2_%s[%d]", api, json_object_array_length(a_perms));
+ x = json_object_new_string(desc);
+ y = json_object_new_string(b);
+ json_object_array_add(a_perms, x);
+ json_object_object_add(d_perms, tag, y);
+ free(b);
+ }
+ return y;
+}
+
+struct json_object *decl_perm(struct json_object *obj);
+
+struct json_object *decl_perm_a(const char *op, struct json_object *obj)
+{
+ int i, n;
+ char *a;
+ struct json_object *x, *y;
+
+ x = NULL;
+ i = n = obj ? json_object_array_length(obj) : 0;
+ while (i) {
+ y = decl_perm(json_object_array_get_idx(obj, --i));
+ if (!y)
+ ;
+ else if (!x)
+ x = y;
+ else if (x != y) {
+ asprintf(&a, ".type = afb_auth_%s, .first = %s, .next = %s",
+ op, json_object_get_string(y), json_object_get_string(x));
+ x = new_perm(NULL, a);
+ free(a);
+ }
+ }
+ return x;
+}
+
+struct json_object *decl_perm(struct json_object *obj)
+{
+ char *a;
+ struct json_object *x, *y;
+
+ if (json_object_object_get_ex(d_perms, json_object_to_json_string_ext(obj, 0), &x))
+ return x;
+
+ if (json_object_object_get_ex(obj, "permission", &x)) {
+ asprintf(&a, ".type = afb_auth_Permission, .text = \"%s\"", json_object_get_string(x));
+ y = new_perm(obj, a);
+ free(a);
+ }
+ else if (json_object_object_get_ex(obj, "anyOf", &x)) {
+ y = decl_perm_a("Or", x);
+ }
+ else if (json_object_object_get_ex(obj, "allOf", &x)) {
+ y = decl_perm_a("And", x);
+ }
+ else if (json_object_object_get_ex(obj, "not", &x)) {
+ x = decl_perm(x);
+ asprintf(&a, ".type = afb_auth_Not, .first = %s", json_object_get_string(x));
+ y = new_perm(obj, a);
+ free(a);
+ }
+ else if (json_object_object_get_ex(obj, "LOA", &x))
+ y = NULL;
+ else if (json_object_object_get_ex(obj, "session", &x))
+ y = NULL;
+ else
+ y = NULL;
+
+ return y;
+}
- printf(
- " {\n"
- " .verb = \"%s\",\n"
- " .callback = %s%s%s,\n"
- " .permissions = %s,\n"
- " .session = %s%d,\n"
- " },\n"
- , verb, prefix, verb, postfix, perm, loa, l
- );
- } else {
- printf(
- "%s void %s%s%s(struct afb_req req);\n"
- , scope, prefix, verb, postfix
- );
+void declare_permissions(const char *name, struct json_object *obj)
+{
+ struct json_object *p;
+
+ p = permissions_of_verb(obj);
+ if (p)
+ decl_perm(p);
+}
+
+
+#define SESSION_CLOSE 0x000001
+#define SESSION_RENEW 0x000010
+#define SESSION_CHECK 0x000100
+#define SESSION_LOA_1 0x001000
+#define SESSION_LOA_2 0x011000
+#define SESSION_LOA_3 0x111000
+#define SESSION_MASK 0x111111
+
+
+int get_session(struct json_object *obj);
+
+int get_session_a(int and, struct json_object *obj)
+{
+ int i, n, x, y;
+
+ n = obj ? json_object_array_length(obj) : 0;
+ if (n == 0)
+ return 0;
+
+ i = n;
+ x = get_session(json_object_array_get_idx(obj, --i));
+ while (i) {
+ y = get_session(json_object_array_get_idx(obj, --i));
+ if (and)
+ x &= y;
+ else
+ x |= y;
+ }
+ return x;
+}
+
+int get_session(struct json_object *obj)
+{
+ int y;
+ const char *a;
+ struct json_object *x;
+
+ y = 0;
+ if (json_object_object_get_ex(obj, "anyOf", &x)) {
+ y = get_session_a(1, x);
+ }
+ else if (json_object_object_get_ex(obj, "allOf", &x)) {
+ y = get_session_a(0, x);
+ }
+ else if (json_object_object_get_ex(obj, "not", &x)) {
+ y = ~get_session(x) & SESSION_MASK;
+ }
+ else if (json_object_object_get_ex(obj, "LOA", &x)) {
+ switch (json_object_get_int(x)) {
+ case 3: y = SESSION_LOA_3; break;
+ case 2: y = SESSION_LOA_2; break;
+ case 1: y = SESSION_LOA_1; break;
+ default: break;
}
}
+ else if (json_object_object_get_ex(obj, "session", &x)) {
+ a = json_object_get_string(x);
+ if (!strcmp(a, "check"))
+ y = SESSION_CHECK;
+ else if (!strcmp(a, "close"))
+ y = SESSION_CLOSE;
+ }
+ else if (json_object_object_get_ex(obj, "token", &x)) {
+ a = json_object_get_string(x);
+ if (!strcmp(a, "refresh"))
+ y = SESSION_RENEW;
+ }
+
+ return y;
+}
+
+void print_session(struct json_object *p)
+{
+ int s, c, l;
+
+ s = p ? get_session(p) : 0;
+ c = 1;
+ if (s & SESSION_CHECK) {
+ printf("%s", "|AFB_SESSION_CHECK" + c);
+ c = 0;
+ }
+ if (s & SESSION_LOA_3 & ~SESSION_LOA_2)
+ l = 3;
+ else if (s & SESSION_LOA_2 & ~SESSION_LOA_1)
+ l = 2;
+ else if (s & SESSION_LOA_1)
+ l = 1;
+ else
+ l = 0;
+ if (l) {
+ printf("%s%d", "|AFB_SESSION_LOA_GE_" + c, l);
+ c = 0;
+ }
+ if (s & SESSION_CLOSE) {
+ printf("%s", "|AFB_SESSION_CLOSE" + c);
+ c = 0;
+ }
+ if (s & SESSION_RENEW) {
+ printf("%s", "|AFB_SESSION_RENEW" + c);
+ c = 0;
+ }
+ if (c)
+ printf("AFB_SESSION_NONE");
+}
+
+void print_verb(const char *name)
+{
+ printf("%s%s%s" , prefix, name, postfix);
+}
- free(verbs);
+void print_declare_verb(const char *name, struct json_object *obj)
+{
+ printf("%s void ", scope);
+ print_verb(name);
+ printf("(struct afb_req req);\n");
+}
+
+void print_struct_verb(const char *name, struct json_object *obj)
+{
+ struct json_object *p;
+
+ p = permissions_of_verb(obj);
+ printf(
+ " {\n"
+ " .verb = \"%s\",\n"
+ " .callback = "
+ , name
+ );
+ print_verb(name);
+ printf(
+ ",\n"
+ " .auth = %s,\n"
+ " .session = "
+ , p ? json_object_get_string(decl_perm(p)) : "NULL"
+ );
+ print_session(p);
+ printf(
+ "\n"
+ " },\n"
+ );
+}
+
+void enum_verbs(void (*func)(const char *name, struct json_object *obj))
+{
+ struct json_object_iterator ji, jn;
+ struct json_object *paths, *obj;
+ const char *name;
+
+ /* search the verbs */
+ paths = search("#/paths");
+ if (!paths)
+ return;
+
+ /* list the verbs and sort it */
+ ji = json_object_iter_begin(paths);
+ jn = json_object_iter_end(paths);
+ while (!json_object_iter_equal(&ji, &jn)) {
+ name = json_object_iter_peek_name(&ji);
+ obj = json_object_iter_peek_value(&ji);
+ name += (*name == '/');
+ func(name, obj);
+ json_object_iter_next(&ji);
+ }
}
void getvarbool(int *var, const char *path, int defval)
/* create the description */
desc = make_desc(root);
- /* generate permissions strings */
- make_permissions((struct path){ .object = root, .upper = NULL });
-
/* expand references */
root = expand_$ref((struct path){ .object = root, .upper = NULL });
/* get some names */
- getvar(&api, "#/api", "?");
- getvar(&init, "#/meta-binding/init", NULL);
- getvar(&start, "#/meta-binding/start", NULL);
- getvar(&onevent, "#/meta-binding/onevent", NULL);
- getvar(&scope, "#/meta-binding/scope", "static");
- getvar(&prefix, "#/meta-binding/prefix", "afb_verb_");
- getvar(&postfix, "#/meta-binding/postfix", "_cb");
- getvarbool(&priv, "#/meta-binding/private", 0);
+ getvar(&api, "#/info/x-binding-c-generator/api", NULL);
+ getvar(&init, "#/info/x-binding-c-generator/init", NULL);
+ getvar(&start, "#/info/x-binding-c-generator/start", NULL);
+ getvar(&onevent, "#/info/x-binding-c-generator/onevent", NULL);
+ getvar(&scope, "#/info/x-binding-c-generator/scope", "static");
+ getvar(&prefix, "#/info/x-binding-c-generator/prefix", "afb_verb_");
+ getvar(&postfix, "#/info/x-binding-c-generator/postfix", "_cb");
+ getvarbool(&priv, "#/info/x-binding-c-generator/private", 0);
+ getvar(&api, "#/info/title", "?");
/* get the API name */
printf(
"\n"
- "static const char _afb_description_v2_[] =\n"
+ "static const char _afb_description_v2_%s[] =\n"
"%s"
";\n"
"\n"
- , desc
+ , api, desc
);
- print_verbs(0);
+ enum_verbs(declare_permissions);
+ print_perms();
+ enum_verbs(print_declare_verb);
printf(
"\n"
- "static const struct afb_verb_v2 _afb_verbs_v2_[] = {\n"
+ "static const struct afb_verb_v2 _afb_verbs_v2_%s[] = {\n"
+ , api
);
- print_verbs(1);
+ enum_verbs(print_struct_verb);
printf(
" { .verb = NULL }\n"
"};\n"
+ );
+ printf(
"\n"
- "%sconst struct afb_binding_v2 %s = {\n"
+ "%sconst struct afb_binding_v2 %s%s = {\n"
" .api = \"%s\",\n"
- " .specification = _afb_description_v2_,\n"
- " .verbs = _afb_verbs_v2_,\n"
+ " .specification = _afb_description_v2_%s,\n"
+ " .verbs = _afb_verbs_v2_%s,\n"
" .init = %s,\n"
" .start = %s,\n"
" .onevent = %s,\n"
"};\n"
"\n"
- , priv?"static ":"", priv?"_afb_binding_v2_":"afbBindingV2"
- , api?:"?", init?:"NULL", start?:"NULL", onevent?:"NULL"
+ , priv ? "static " : ""
+ , priv ? "_afb_binding_v2_" : "afbBindingV2"
+ , priv ? api : ""
+ , api
+ , api
+ , api
+ , init ?: "NULL"
+ , start ?: "NULL"
+ , onevent ?: "NULL"
);
/* clean up */
return 0;
}
+
+
+
+
Code Review / src / app-framework-binder.git / blobdiff