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Add validation

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This commit is contained in:
Tobe O 2019-08-13 22:55:46 -04:00
parent 36ab0cdb2a
commit b2fe33f0ad
1 changed files with 38 additions and 1 deletions
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39
angel_graphql/lib/src/graphql_http.dart
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@ -86,23 +86,60 @@ RequestHandler graphQLHttp(GraphQL graphQL,
// TODO: Support file uploads in batch requests.
var fields = await req.parseBody().then((_) => req.bodyAsMap);
var operations = fields['operations'] as String;
if (operations == null) {
throw AngelHttpException.badRequest(
message: 'Missing "operations" field.');
}
var map = fields.containsKey('map')
? json.decode(fields['map'] as String)
: null;
if (map is! Map) {
throw AngelHttpException.badRequest(
message: '"map" field must decode to a JSON object.');
}
var variables = Map<String, dynamic>.from(globalVariables);
for (var entry in (map as Map).entries) {
var key = int.parse(entry.key as String);
if (req.uploadedFiles.length < key) {
throw AngelHttpException.badRequest(
message:
'"map" contained key "$key", but the number of uploaded files was ${req.uploadedFiles.length}.');
}
if (entry.value is! List) {
throw AngelHttpException.badRequest(
message:
'The value for "$key" in the "map" field was not a JSON array.');
}
var objectPaths = entry.value as List;
for (var objectPath in objectPaths) {
var subPaths = (objectPath as String).split('.');
if (subPaths[0] == 'variables') {
var current = variables;
Object current = variables;
for (int i = 0; i < subPaths.length; i++) {
var name = subPaths[0];
var parent = subPaths.take(i).join('.');
if (_num.hasMatch(name)) {
if (current is! List) {
throw AngelHttpException.badRequest(
message:
'Object "$parent" is not a JSON array, but the '
'"map" field contained a mapping to $parent.$name.');
}
(current as List)[int.parse(name)] = req.uploadedFiles[key];
} else {
if (current is! Map) {
throw AngelHttpException.badRequest(
message:
'Object "$parent" is not a JSON object, but the '
'"map" field contained a mapping to $parent.$name.');
}
(current as Map)[name] = req.uploadedFiles[key];
}
}
} else {
throw AngelHttpException.badRequest(
message:
'All array values in the "map" field must begin with "variables.".');
}
}
}