// Return true if the json ref is an array of string values
static bool is_array_of_strings(const json_ref& ref) {
uint32_t i;
if (!ref.isArray()) {
return false;
}
for (i = 0; i < json_array_size(ref); i++) {
if (!json_array_get(ref, i).isString()) {
return false;
}
}
return true;
}
// Translate from the legacy array into the new style, then
// delegate to the main parser.
// We build a big anyof expression
std::shared_ptr<w_query> w_query_parse_legacy(
const std::shared_ptr<w_root_t>& root,
const json_ref& args,
int start,
uint32_t* next_arg,
const char* clockspec,
json_ref* expr_p) {
bool include = true;
bool negated = false;
uint32_t i;
const char *term_name = "match";
json_ref included, excluded;
auto query_obj = json_object();
if (!args.isArray()) {
throw QueryParseError("Expected an array");
}
for (i = start; i < json_array_size(args); i++) {
const char *arg = json_string_value(json_array_get(args, i));
if (!arg) {
/* not a string value! */
throw QueryParseError(watchman::to<std::string>(
"rule @ position ", i, " is not a string value"));
}
}
for (i = start; i < json_array_size(args); i++) {
const char *arg = json_string_value(json_array_get(args, i));
if (!strcmp(arg, "--")) {
i++;
break;
}
if (!strcmp(arg, "-X")) {
include = false;
continue;
}
if (!strcmp(arg, "-I")) {
include = true;
continue;
}
if (!strcmp(arg, "!")) {
negated = true;
continue;
}
if (!strcmp(arg, "-P")) {
term_name = "ipcre";
continue;
}
if (!strcmp(arg, "-p")) {
term_name = "pcre";
continue;
}
// Which group are we going to file it into
json_ref container;
if (include) {
if (!included) {
included =
json_array({typed_string_to_json("anyof", W_STRING_UNICODE)});
}
container = included;
} else {
if (!excluded) {
excluded =
json_array({typed_string_to_json("anyof", W_STRING_UNICODE)});
}
container = excluded;
}
auto term =
json_array({typed_string_to_json(term_name, W_STRING_UNICODE),
typed_string_to_json(arg),
typed_string_to_json("wholename", W_STRING_UNICODE)});
if (negated) {
term = json_array({typed_string_to_json("not", W_STRING_UNICODE), term});
}
json_array_append_new(container, std::move(term));
// Reset negated flag
negated = false;
term_name = "match";
}
if (excluded) {
excluded =
json_array({typed_string_to_json("not", W_STRING_UNICODE), excluded});
}
json_ref query_array;
if (included && excluded) {
query_array = json_array(
{typed_string_to_json("allof", W_STRING_UNICODE), excluded, included});
} else if (included) {
query_array = included;
} else {
query_array = excluded;
}
// query_array may be NULL, which means find me all files.
// Otherwise, it is the expression we want to use.
if (query_array) {
json_object_set_new_nocheck(
query_obj, "expression", std::move(query_array));
}
// For trigger
if (next_arg) {
*next_arg = i;
}
if (clockspec) {
json_object_set_new_nocheck(query_obj,
"since", typed_string_to_json(clockspec, W_STRING_UNICODE));
}
/* compose the query with the field list */
auto query = w_query_parse(root, query_obj);
if (expr_p) {
*expr_p = query_obj;
}
if (query) {
w_query_legacy_field_list(&query->fieldList);
}
return query;
}
static std::unique_ptr<QueryExpr>
parse(w_query*, const json_ref& term, CaseSensitivity caseSensitive) {
const char *pattern = nullptr, *scope = "basename";
const char *which =
caseSensitive == CaseSensitivity::CaseInSensitive ? "iname" : "name";
std::unordered_set<w_string> set;
if (!term.isArray()) {
throw QueryParseError("Expected array for '", which, "' term");
}
if (json_array_size(term) > 3) {
throw QueryParseError(
"Invalid number of arguments for '", which, "' term");
}
if (json_array_size(term) == 3) {
const auto& jscope = term.at(2);
if (!jscope.isString()) {
throw QueryParseError("Argument 3 to '", which, "' must be a string");
}
scope = json_string_value(jscope);
if (strcmp(scope, "basename") && strcmp(scope, "wholename")) {
throw QueryParseError(
"Invalid scope '", scope, "' for ", which, " expression");
}
}
const auto& name = term.at(1);
if (name.isArray()) {
uint32_t i;
for (i = 0; i < json_array_size(name); i++) {
if (!json_array_get(name, i).isString()) {
throw QueryParseError(
"Argument 2 to '",
which,
"' must be either a string or an array of string");
}
}
set.reserve(json_array_size(name));
for (i = 0; i < json_array_size(name); i++) {
w_string element;
const auto& jele = name.at(i);
auto ele = json_to_w_string(jele);
if (caseSensitive == CaseSensitivity::CaseInSensitive) {
element = ele.piece().asLowerCase(ele.type()).normalizeSeparators();
} else {
element = ele.normalizeSeparators();
}
set.insert(element);
}
} else if (name.isString()) {
pattern = json_string_value(name);
} else {
throw QueryParseError(
"Argument 2 to '",
which,
"' must be either a string or an array of string");
}
auto data = new NameExpr(std::move(set), caseSensitive,
!strcmp(scope, "wholename"));
if (pattern) {
data->name = json_to_w_string(name).normalizeSeparators();
}
return std::unique_ptr<QueryExpr>(data);
}