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feat: limit functions exposed in indexing status API
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Original file line number | Diff line number | Diff line change |
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// Copyright 2023-, GraphOps and Semiotic Labs. | ||
// SPDX-License-Identifier: Apache-2.0 | ||
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use std::collections::HashSet; | ||
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use regex::Regex; | ||
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/// There is no convenient function for filtering GraphQL executable documents | ||
/// For sake of simplicity, use regex to filter graphql query string | ||
/// Return original string if the query is okay, otherwise error out with | ||
/// unsupported fields | ||
pub fn filter_supported_fields( | ||
query: &str, | ||
supported_root_fields: &HashSet<&str>, | ||
) -> Result<String, Vec<String>> { | ||
// Create a regex pattern to match the fields not in the supported fields | ||
let re = Regex::new(r"\b(\w+)\s*\{").unwrap(); | ||
let mut unsupported_fields = Vec::new(); | ||
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for cap in re.captures_iter(query) { | ||
if let Some(match_) = cap.get(1) { | ||
let field = match_.as_str(); | ||
if !supported_root_fields.contains(field) { | ||
unsupported_fields.push(field.to_string()); | ||
} | ||
} | ||
} | ||
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if !unsupported_fields.is_empty() { | ||
return Err(unsupported_fields); | ||
} | ||
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Ok(query.to_string()) | ||
} | ||
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#[cfg(test)] | ||
mod tests { | ||
use super::*; | ||
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#[test] | ||
fn test_filter_supported_fields_with_valid_fields() { | ||
let supported_fields = vec![ | ||
"indexingStatuses", | ||
"publicProofsOfIndexing", | ||
"entityChangesInBlock", | ||
] | ||
.into_iter() | ||
.collect::<HashSet<&str>>(); | ||
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let query_string = "{ | ||
indexingStatuses { | ||
subgraph | ||
health | ||
} | ||
publicProofsOfIndexing { | ||
number | ||
} | ||
}"; | ||
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assert_eq!( | ||
filter_supported_fields(query_string, &supported_fields).unwrap(), | ||
query_string.to_string() | ||
); | ||
} | ||
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#[test] | ||
fn test_filter_supported_fields_with_unsupported_fields() { | ||
let supported_fields = vec![ | ||
"indexingStatuses", | ||
"publicProofsOfIndexing", | ||
"entityChangesInBlock", | ||
] | ||
.into_iter() | ||
.collect::<HashSet<&str>>(); | ||
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let query_string = "{ | ||
someField { | ||
subfield1 | ||
subfield2 | ||
} | ||
indexingStatuses { | ||
subgraph | ||
health | ||
} | ||
}"; | ||
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let filtered = filter_supported_fields(query_string, &supported_fields); | ||
assert!(filtered.is_err(),); | ||
let errors = filtered.err().unwrap(); | ||
assert_eq!(errors.len(), 1); | ||
assert_eq!(errors.first().unwrap(), &String::from("someField")); | ||
} | ||
} |
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