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Add error handling and earth lap collision with bounding box

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Guillaume Mourier 2022-10-28 15:30:53 +02:00 • committed by Louis Dureuil
parent 5c525168a0
commit b078477d80
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6 changed files with 165 additions and 37 deletions
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16
filter-parser/src/error.rs
View file

@ -57,8 +57,10 @@ pub enum ExpectedValueKind {
#[derive(Debug)]
pub enum ErrorKind<'a> {
ReservedGeo(&'a str),
Geo,
MisusedGeo,
GeoRadius,
GeoBoundingBox,
MisusedGeoRadius,
MisusedGeoBoundingBox,
InvalidPrimary,
ExpectedEof,
ExpectedValue(ExpectedValueKind),
@ -150,15 +152,21 @@ impl<'a> Display for Error<'a> {
ErrorKind::ExpectedEof => {
writeln!(f, "Found unexpected characters at the end of the filter: `{}`. You probably forgot an `OR` or an `AND` rule.", escaped_input)?
}
ErrorKind::Geo => {
ErrorKind::GeoRadius => {
writeln!(f, "The `_geoRadius` filter expects three arguments: `_geoRadius(latitude, longitude, radius)`.")?
}
ErrorKind::GeoBoundingBox => {
writeln!(f, "The `_geoBoundingBox` filter expects two pair of arguments: `_geoBoundingBox((latitude, longitude), (latitude, longitude))`.")?
}
ErrorKind::ReservedGeo(name) => {
writeln!(f, "`{}` is a reserved keyword and thus can't be used as a filter expression. Use the `_geoRadius(latitude, longitude, distance) built-in rule to filter on `_geo` coordinates.", name.escape_debug())?
}
ErrorKind::MisusedGeo => {
ErrorKind::MisusedGeoRadius => {
writeln!(f, "The `_geoRadius` filter is an operation and can't be used as a value.")?
}
ErrorKind::MisusedGeoBoundingBox => {
writeln!(f, "The `_geoBoundingBox` filter is an operation and can't be used as a value.")?
}
ErrorKind::ReservedKeyword(word) => {
writeln!(f, "`{word}` is a reserved keyword and thus cannot be used as a field name unless it is put inside quotes. Use \"{word}\" or \'{word}\' instead.")?
}

55
filter-parser/src/lib.rs
View file

@ -45,6 +45,7 @@ mod error;
mod value;
use std::fmt::Debug;
use std::str::FromStr;
pub use condition::{parse_condition, parse_to, Condition};
use condition::{parse_exists, parse_not_exists};
@ -71,7 +72,7 @@ const MAX_FILTER_DEPTH: usize = 200;
#[derive(Debug, Clone, Eq)]
pub struct Token<'a> {
/// The token in the original input, it should be used when possible.
span: Span<'a>,
pub span: Span<'a>,
/// If you need to modify the original input you can use the `value` field
/// to store your modified input.
value: Option<String>,
@ -101,7 +102,7 @@ impl<'a> Token<'a> {
}
pub fn parse_finite_float(&self) -> Result<f64, Error> {
let value: f64 = self.span.parse().map_err(|e| self.as_external_error(e))?;
let value: f64 = self.value().parse().map_err(|e| self.as_external_error(e))?;
if value.is_finite() {
Ok(value)
} else {
@ -131,7 +132,7 @@ pub enum FilterCondition<'a> {
Or(Vec<Self>),
And(Vec<Self>),
GeoLowerThan { point: [Token<'a>; 2], radius: Token<'a> },
GeoBoundingBox { top_left_point: [Token<'a>; 2], bottom_right_point: [Token<'a>; 2]},
GeoBoundingBox { top_left_point: [Token<'a>; 2], bottom_right_point: [Token<'a>; 2] },
}
impl<'a> FilterCondition<'a> {
@ -312,12 +313,12 @@ fn parse_geo_radius(input: Span) -> IResult<FilterCondition> {
// if we were able to parse `_geoRadius` and can't parse the rest of the input we return a failure
cut(delimited(char('('), separated_list1(tag(","), ws(recognize_float)), char(')'))),
)(input)
.map_err(|e| e.map(|_| Error::new_from_kind(input, ErrorKind::Geo)));
.map_err(|e| e.map(|_| Error::new_from_kind(input, ErrorKind::GeoRadius)));
let (input, args) = parsed?;
if args.len() != 3 {
return Err(nom::Err::Failure(Error::new_from_kind(input, ErrorKind::Geo)));
return Err(nom::Err::Failure(Error::new_from_kind(input, ErrorKind::GeoRadius)));
}
let res = FilterCondition::GeoLowerThan {
@ -334,38 +335,27 @@ fn parse_geo_bounding_box(input: Span) -> IResult<FilterCondition> {
let parsed = preceded(
tuple((multispace0, word_exact("_geoBoundingBox"))),
// if we were able to parse `_geoBoundingBox` and can't parse the rest of the input we return a failure
cut(
delimited(
char('('),
separated_list1(
tag(","),
ws(
delimited(
char('('),
separated_list1(
tag(","),
ws(recognize_float)
),
char(')')
)
)
),
char(')')
)
),
cut(delimited(
char('('),
separated_list1(
tag(","),
ws(delimited(char('('), separated_list1(tag(","), ws(recognize_float)), char(')'))),
),
char(')'),
)),
)(input)
.map_err(|e| e.map(|_| Error::new_from_kind(input, ErrorKind::Geo)));
.map_err(|e| e.map(|_| Error::new_from_kind(input, ErrorKind::GeoBoundingBox)));
let (input, args) = parsed?;
if args.len() != 2 {
return Err(nom::Err::Failure(Error::new_from_kind(input, ErrorKind::Geo)));
if args.len() != 2 || args[0].len() != 2 || args[1].len() != 2 {
return Err(nom::Err::Failure(Error::new_from_kind(input, ErrorKind::GeoBoundingBox)));
}
//TODO: Check sub array length
let res = FilterCondition::GeoBoundingBox {
top_left_point: [args[0][0].into(), args[0][1].into()],
bottom_right_point: [args[1][0].into(), args[1][1].into()]
bottom_right_point: [args[1][0].into(), args[1][1].into()],
};
Ok((input, res))
}
@ -762,7 +752,14 @@ impl<'a> std::fmt::Display for FilterCondition<'a> {
write!(f, "_geoRadius({}, {}, {})", point[0], point[1], radius)
}
FilterCondition::GeoBoundingBox { top_left_point, bottom_right_point } => {
write!(f, "_geoBoundingBox(({}, {}), ({}, {}))", top_left_point[0], top_left_point[1], bottom_right_point[0], bottom_right_point[1])
write!(
f,
"_geoBoundingBox(({}, {}), ({}, {}))",
top_left_point[0],
top_left_point[1],
bottom_right_point[0],
bottom_right_point[1]
)
}
}
}

18
filter-parser/src/value.rs
View file

@ -6,7 +6,7 @@ use nom::sequence::{delimited, terminated};
use nom::{InputIter, InputLength, InputTake, Slice};
use crate::error::{ExpectedValueKind, NomErrorExt};
use crate::{parse_geo_point, parse_geo_radius, Error, ErrorKind, IResult, Span, Token};
use crate::{parse_geo_point, parse_geo_radius, parse_geo_bounding_box, Error, ErrorKind, IResult, Span, Token};
/// This function goes through all characters in the [Span] if it finds any escaped character (`\`).
/// It generates a new string with all `\` removed from the [Span].
@ -91,11 +91,21 @@ pub fn parse_value(input: Span) -> IResult<Token> {
}
}
match parse_geo_radius(input) {
Ok(_) => return Err(nom::Err::Failure(Error::new_from_kind(input, ErrorKind::MisusedGeo))),
Ok(_) => return Err(nom::Err::Failure(Error::new_from_kind(input, ErrorKind::MisusedGeoRadius))),
// if we encountered a failure it means the user badly wrote a _geoRadius filter.
// But instead of showing him how to fix his syntax we are going to tell him he should not use this filter as a value.
Err(e) if e.is_failure() => {
return Err(nom::Err::Failure(Error::new_from_kind(input, ErrorKind::MisusedGeo)))
return Err(nom::Err::Failure(Error::new_from_kind(input, ErrorKind::MisusedGeoRadius)))
}
_ => (),
}
match parse_geo_bounding_box(input) {
Ok(_) => return Err(nom::Err::Failure(Error::new_from_kind(input, ErrorKind::MisusedGeoBoundingBox))),
// if we encountered a failure it means the user badly wrote a _geoBoundingBox filter.
// But instead of showing him how to fix his syntax we are going to tell him he should not use this filter as a value.
Err(e) if e.is_failure() => {
return Err(nom::Err::Failure(Error::new_from_kind(input, ErrorKind::MisusedGeoBoundingBox)))
}
_ => (),
}
@ -155,7 +165,7 @@ fn is_syntax_component(c: char) -> bool {
}
fn is_keyword(s: &str) -> bool {
matches!(s, "AND" | "OR" | "IN" | "NOT" | "TO" | "EXISTS" | "_geoRadius")
matches!(s, "AND" | "OR" | "IN" | "NOT" | "TO" | "EXISTS" | "_geoRadius" | "_geoBoundingBox")
}
#[cfg(test)]