use crate::{
compilation::{compile_validators, context::CompilationContext},
error::{no_error, ErrorIterator, ValidationError},
keywords::CompilationResult,
output::BasicOutput,
paths::{JSONPointer, JsonPointerNode},
primitive_type::PrimitiveType,
schema_node::SchemaNode,
validator::{format_validators, PartialApplication, Validate},
};
use fancy_regex::Regex;
use serde_json::{Map, Value};
pub(crate) struct PatternPropertiesValidator {
patterns: Vec<(Regex, SchemaNode)>,
}
impl PatternPropertiesValidator {
#[inline]
pub(crate) fn compile<'a>(
map: &'a Map<String, Value>,
context: &CompilationContext,
) -> CompilationResult<'a> {
let keyword_context = context.with_path("patternProperties");
let mut patterns = Vec::with_capacity(map.len());
for (pattern, subschema) in map {
let pattern_context = keyword_context.with_path(pattern.as_str());
patterns.push((
match Regex::new(pattern) {
Ok(r) => r,
Err(_) => {
return Err(ValidationError::format(
JSONPointer::default(),
keyword_context.clone().into_pointer(),
subschema,
"regex",
))
}
},
compile_validators(subschema, &pattern_context)?,
));
}
Ok(Box::new(PatternPropertiesValidator { patterns }))
}
}
impl Validate for PatternPropertiesValidator {
fn is_valid(&self, instance: &Value) -> bool {
if let Value::Object(item) = instance {
self.patterns.iter().all(move |(re, node)| {
item.iter()
.filter(move |(key, _)| re.is_match(key).unwrap_or(false))
.all(move |(_key, value)| node.is_valid(value))
})
} else {
true
}
}
#[allow(clippy::needless_collect)]
fn validate<'instance>(
&self,
instance: &'instance Value,
instance_path: &JsonPointerNode,
) -> ErrorIterator<'instance> {
if let Value::Object(item) = instance {
let errors: Vec<_> = self
.patterns
.iter()
.flat_map(move |(re, node)| {
item.iter()
.filter(move |(key, _)| re.is_match(key).unwrap_or(false))
.flat_map(move |(key, value)| {
let instance_path = instance_path.push(key.as_str());
node.validate(value, &instance_path)
})
})
.collect();
Box::new(errors.into_iter())
} else {
no_error()
}
}
fn apply<'a>(
&'a self,
instance: &Value,
instance_path: &JsonPointerNode,
) -> PartialApplication<'a> {
if let Value::Object(item) = instance {
let mut matched_propnames = Vec::with_capacity(item.len());
let mut sub_results = BasicOutput::default();
for (pattern, node) in &self.patterns {
for (key, value) in item {
if pattern.is_match(key).unwrap_or(false) {
let path = instance_path.push(key.as_str());
matched_propnames.push(key.clone());
sub_results += node.apply_rooted(value, &path);
}
}
}
let mut result: PartialApplication = sub_results.into();
result.annotate(Value::from(matched_propnames).into());
result
} else {
PartialApplication::valid_empty()
}
}
}
impl core::fmt::Display for PatternPropertiesValidator {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
write!(
f,
"patternProperties: {{{}}}",
self.patterns
.iter()
.map(|(key, node)| { format!("{}: {}", key, format_validators(node.validators())) })
.collect::<Vec<String>>()
.join(", ")
)
}
}
pub(crate) struct SingleValuePatternPropertiesValidator {
pattern: Regex,
node: SchemaNode,
}
impl SingleValuePatternPropertiesValidator {
#[inline]
pub(crate) fn compile<'a>(
pattern: &'a str,
schema: &'a Value,
context: &CompilationContext,
) -> CompilationResult<'a> {
let keyword_context = context.with_path("patternProperties");
let pattern_context = keyword_context.with_path(pattern);
Ok(Box::new(SingleValuePatternPropertiesValidator {
pattern: match Regex::new(pattern) {
Ok(r) => r,
Err(_) => {
return Err(ValidationError::format(
JSONPointer::default(),
keyword_context.clone().into_pointer(),
schema,
"regex",
))
}
},
node: compile_validators(schema, &pattern_context)?,
}))
}
}
impl Validate for SingleValuePatternPropertiesValidator {
fn is_valid(&self, instance: &Value) -> bool {
if let Value::Object(item) = instance {
item.iter()
.filter(move |(key, _)| self.pattern.is_match(key).unwrap_or(false))
.all(move |(_key, value)| self.node.is_valid(value))
} else {
true
}
}
#[allow(clippy::needless_collect)]
fn validate<'instance>(
&self,
instance: &'instance Value,
instance_path: &JsonPointerNode,
) -> ErrorIterator<'instance> {
if let Value::Object(item) = instance {
let errors: Vec<_> = item
.iter()
.filter(move |(key, _)| self.pattern.is_match(key).unwrap_or(false))
.flat_map(move |(key, value)| {
let instance_path = instance_path.push(key.as_str());
self.node.validate(value, &instance_path)
})
.collect();
Box::new(errors.into_iter())
} else {
no_error()
}
}
fn apply<'a>(
&'a self,
instance: &Value,
instance_path: &JsonPointerNode,
) -> PartialApplication<'a> {
if let Value::Object(item) = instance {
let mut matched_propnames = Vec::with_capacity(item.len());
let mut outputs = BasicOutput::default();
for (key, value) in item {
if self.pattern.is_match(key).unwrap_or(false) {
let path = instance_path.push(key.as_str());
matched_propnames.push(key.clone());
outputs += self.node.apply_rooted(value, &path);
}
}
let mut result: PartialApplication = outputs.into();
result.annotate(Value::from(matched_propnames).into());
result
} else {
PartialApplication::valid_empty()
}
}
}
impl core::fmt::Display for SingleValuePatternPropertiesValidator {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
write!(
f,
"patternProperties: {{{}: {}}}",
self.pattern,
format_validators(self.node.validators())
)
}
}
#[inline]
pub(crate) fn compile<'a>(
parent: &'a Map<String, Value>,
schema: &'a Value,
context: &CompilationContext,
) -> Option<CompilationResult<'a>> {
match parent.get("additionalProperties") {
Some(Value::Bool(false)) | Some(Value::Object(_)) => None,
_ => {
if let Value::Object(map) = schema {
if map.len() == 1 {
let (key, value) = map.iter().next().expect("Map is not empty");
Some(SingleValuePatternPropertiesValidator::compile(
key, value, context,
))
} else {
Some(PatternPropertiesValidator::compile(map, context))
}
} else {
Some(Err(ValidationError::single_type_error(
JSONPointer::default(),
context.clone().into_pointer(),
schema,
PrimitiveType::Object,
)))
}
}
}
}
#[cfg(test)]
mod tests {
use crate::tests_util;
use serde_json::{json, Value};
use test_case::test_case;
#[test_case(&json!({"patternProperties": {"^f": {"type": "string"}}}), &json!({"f": 42}), "/patternProperties/^f/type")]
#[test_case(&json!({"patternProperties": {"^f": {"type": "string"}, "^x": {"type": "string"}}}), &json!({"f": 42}), "/patternProperties/^f/type")]
fn schema_path(schema: &Value, instance: &Value, expected: &str) {
tests_util::assert_schema_path(schema, instance, expected)
}
}