search/selector.rs
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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
//! This module defines the main `SearchEngineSelector`.
use crate::filter::filter_engine_configuration;
use crate::{
error::Error, JSONSearchConfiguration, RefinedSearchConfig, SearchApiResult,
SearchUserEnvironment,
};
use error_support::handle_error;
use parking_lot::Mutex;
use std::sync::Arc;
#[derive(Default)]
pub(crate) struct SearchEngineSelectorInner {
configuration: Option<JSONSearchConfiguration>,
}
/// SearchEngineSelector parses the JSON configuration for
/// search engines and returns the applicable engines depending
/// on their region + locale.
#[derive(Default, uniffi::Object)]
pub struct SearchEngineSelector(Mutex<SearchEngineSelectorInner>);
#[uniffi::export]
impl SearchEngineSelector {
#[uniffi::constructor]
pub fn new() -> Self {
Self(Mutex::default())
}
/// Sets the search configuration from the given string. If the configuration
/// string is unchanged since the last update, the cached configuration is
/// reused to avoid unnecessary reprocessing. This helps optimize performance,
/// particularly during test runs where the same configuration may be used
/// repeatedly.
#[handle_error(Error)]
pub fn set_search_config(self: Arc<Self>, configuration: String) -> SearchApiResult<()> {
if configuration.is_empty() {
return Err(Error::SearchConfigNotSpecified);
}
self.0.lock().configuration = serde_json::from_str(&configuration)?;
Ok(())
}
/// Clears the search configuration from memory if it is known that it is
/// not required for a time, e.g. if the configuration will only be re-filtered
/// after an app/environment update.
pub fn clear_search_config(self: Arc<Self>) {}
/// Filters the search configuration with the user's given environment,
/// and returns the set of engines and parameters that should be presented
/// to the user.
#[handle_error(Error)]
pub fn filter_engine_configuration(
self: Arc<Self>,
user_environment: SearchUserEnvironment,
) -> SearchApiResult<RefinedSearchConfig> {
let data = match &self.0.lock().configuration {
None => return Err(Error::SearchConfigNotSpecified),
Some(configuration) => configuration.data.clone(),
};
filter_engine_configuration(user_environment, data)
}
}
#[cfg(test)]
mod tests {
use super::*;
use crate::types::*;
use pretty_assertions::assert_eq;
use serde_json::json;
#[test]
fn test_set_config_should_allow_basic_config() {
let selector = Arc::new(SearchEngineSelector::new());
let config_result = Arc::clone(&selector).set_search_config(
json!({
"data": [
{
"recordType": "engine",
"identifier": "test",
"base": {
"name": "Test",
"classification": "general",
"urls": {
"search": {
"base": "https://example.com",
"method": "GET"
}
}
},
"variants": [{
"environment": {
"allRegionsAndLocales": true,
"excludedRegions": []
}
}],
},
{
"recordType": "defaultEngines",
"globalDefault": "test"
}
]
})
.to_string(),
);
assert!(
config_result.is_ok(),
"Should have set the configuration successfully. {:?}",
config_result
);
}
#[test]
fn test_set_config_should_allow_extra_fields() {
let selector = Arc::new(SearchEngineSelector::new());
let config_result = Arc::clone(&selector).set_search_config(
json!({
"data": [
{
"recordType": "engine",
"identifier": "test",
"base": {
"name": "Test",
"classification": "general",
"urls": {
"search": {
"base": "https://example.com",
"method": "GET",
"extraField1": true
}
},
"extraField2": "123"
},
"variants": [{
"environment": {
"allRegionsAndLocales": true
}
}],
"extraField3": ["foo"]
},
{
"recordType": "defaultEngines",
"globalDefault": "test",
"extraField4": {
"subField1": true
}
}
]
})
.to_string(),
);
assert!(
config_result.is_ok(),
"Should have set the configuration successfully with extra fields. {:?}",
config_result
);
}
#[test]
fn test_set_config_should_ignore_unknown_record_types() {
let selector = Arc::new(SearchEngineSelector::new());
let config_result = Arc::clone(&selector).set_search_config(
json!({
"data": [
{
"recordType": "engine",
"identifier": "test",
"base": {
"name": "Test",
"classification": "general",
"urls": {
"search": {
"base": "https://example.com",
"method": "GET"
}
}
},
"variants": [{
"environment": {
"allRegionsAndLocales": true
}
}],
},
{
"recordType": "defaultEngines",
"globalDefault": "test"
},
{
"recordType": "unknown"
}
]
})
.to_string(),
);
assert!(
config_result.is_ok(),
"Should have set the configuration successfully with unknown record types. {:?}",
config_result
);
}
#[test]
fn test_filter_engine_configuration_throws_without_config() {
let selector = Arc::new(SearchEngineSelector::new());
let result = selector.filter_engine_configuration(SearchUserEnvironment {
..Default::default()
});
assert!(
result.is_err(),
"Should throw an error when a configuration has not been specified before filtering"
);
assert!(result
.unwrap_err()
.to_string()
.contains("Search configuration not specified"))
}
#[test]
fn test_filter_engine_configuration_returns_basic_engines() {
let selector = Arc::new(SearchEngineSelector::new());
let config_result = Arc::clone(&selector).set_search_config(
json!({
"data": [
{
"recordType": "engine",
"identifier": "test1",
"base": {
"name": "Test 1",
"classification": "general",
"urls": {
"search": {
"base": "https://example.com/1",
"method": "GET",
"searchTermParamName": "q"
},
"suggestions": {
"base": "https://example.com/suggestions",
"method": "POST",
"params": [{
"name": "suggestion-name",
"value": "suggestion-value",
}],
"searchTermParamName": "suggest"
},
"trending": {
"base": "https://example.com/trending",
"method": "GET",
"params": [{
"name": "trending-name",
"experimentConfig": "trending-experiment-value",
}]
}
}
},
"variants": [{
"environment": {
"allRegionsAndLocales": true
}
}],
},
{
"recordType": "engine",
"identifier": "test2",
"base": {
"name": "Test 2",
"classification": "general",
"urls": {
"search": {
"base": "https://example.com/2",
"method": "GET",
"searchTermParamName": "search"
}
}
},
"variants": [{
"environment": {
"allRegionsAndLocales": true
}
}],
},
{
"recordType": "defaultEngines",
"globalDefault": "test1",
"globalDefaultPrivate": "test2"
}
]
})
.to_string(),
);
assert!(
config_result.is_ok(),
"Should have set the configuration successfully. {:?}",
config_result
);
let result = selector.filter_engine_configuration(SearchUserEnvironment {
..Default::default()
});
assert!(
result.is_ok(),
"Should have filtered the configuration without error. {:?}",
result
);
assert_eq!(
result.unwrap(),
RefinedSearchConfig {
engines: vec!(
SearchEngineDefinition {
charset: "UTF-8".to_string(),
classification: SearchEngineClassification::General,
identifier: "test1".to_string(),
name: "Test 1".to_string(),
urls: SearchEngineUrls {
search: SearchEngineUrl {
base: "https://example.com/1".to_string(),
method: "GET".to_string(),
params: Vec::new(),
search_term_param_name: Some("q".to_string())
},
suggestions: Some(SearchEngineUrl {
base: "https://example.com/suggestions".to_string(),
method: "POST".to_string(),
params: vec![SearchUrlParam {
name: "suggestion-name".to_string(),
value: Some("suggestion-value".to_string()),
experiment_config: None
}],
search_term_param_name: Some("suggest".to_string())
}),
trending: Some(SearchEngineUrl {
base: "https://example.com/trending".to_string(),
method: "GET".to_string(),
params: vec![SearchUrlParam {
name: "trending-name".to_string(),
value: None,
experiment_config: Some(
"trending-experiment-value".to_string()
)
}],
search_term_param_name: None
})
},
..Default::default()
},
SearchEngineDefinition {
aliases: Vec::new(),
charset: "UTF-8".to_string(),
classification: SearchEngineClassification::General,
identifier: "test2".to_string(),
name: "Test 2".to_string(),
order_hint: None,
partner_code: String::new(),
telemetry_suffix: None,
urls: SearchEngineUrls {
search: SearchEngineUrl {
base: "https://example.com/2".to_string(),
method: "GET".to_string(),
params: Vec::new(),
search_term_param_name: Some("search".to_string())
},
suggestions: None,
trending: None
}
}
),
app_default_engine_id: Some("test1".to_string()),
app_private_default_engine_id: Some("test2".to_string())
}
)
}
#[test]
fn test_filter_engine_configuration_handles_environments() {
let selector = Arc::new(SearchEngineSelector::new());
let config_result = Arc::clone(&selector).set_search_config(
json!({
"data": [
{
"recordType": "engine",
"identifier": "test1",
"base": {
"name": "Test 1",
"classification": "general",
"urls": {
"search": {
"base": "https://example.com/1",
"method": "GET",
"searchTermParamName": "q"
}
}
},
"variants": [{
"environment": {
"allRegionsAndLocales": true
}
}],
},
{
"recordType": "engine",
"identifier": "test2",
"base": {
"name": "Test 2",
"classification": "general",
"urls": {
"search": {
"base": "https://example.com/2",
"method": "GET",
"searchTermParamName": "search"
}
}
},
"variants": [{
"environment": {
"applications": ["firefox-android", "focus-ios"]
}
}],
},
{
"recordType": "engine",
"identifier": "test3",
"base": {
"name": "Test 3",
"classification": "general",
"urls": {
"search": {
"base": "https://example.com/3",
"method": "GET",
"searchTermParamName": "trek"
}
}
},
"variants": [{
"environment": {
"distributions": ["starship"]
}
}],
},
{
"recordType": "defaultEngines",
"globalDefault": "test1",
}
]
})
.to_string(),
);
assert!(
config_result.is_ok(),
"Should have set the configuration successfully. {:?}",
config_result
);
let mut result = Arc::clone(&selector).filter_engine_configuration(SearchUserEnvironment {
distribution_id: String::new(),
app_name: SearchApplicationName::Firefox,
..Default::default()
});
assert!(
result.is_ok(),
"Should have filtered the configuration without error. {:?}",
result
);
assert_eq!(
result.unwrap(),
RefinedSearchConfig {
engines: vec!(
SearchEngineDefinition {
charset: "UTF-8".to_string(),
classification: SearchEngineClassification::General,
identifier: "test1".to_string(),
name: "Test 1".to_string(),
urls: SearchEngineUrls {
search: SearchEngineUrl {
base: "https://example.com/1".to_string(),
method: "GET".to_string(),
params: Vec::new(),
search_term_param_name: Some("q".to_string())
},
..Default::default()
},
..Default::default()
},
),
app_default_engine_id: Some("test1".to_string()),
app_private_default_engine_id: None
}, "Should have selected test1 for all matching locales, as the environments do not match for the other two"
);
result = Arc::clone(&selector).filter_engine_configuration(SearchUserEnvironment {
distribution_id: String::new(),
app_name: SearchApplicationName::FocusIos,
..Default::default()
});
assert!(
result.is_ok(),
"Should have filtered the configuration without error. {:?}",
result
);
assert_eq!(
result.unwrap(),
RefinedSearchConfig {
engines: vec!(
SearchEngineDefinition {
charset: "UTF-8".to_string(),
classification: SearchEngineClassification::General,
identifier: "test1".to_string(),
name: "Test 1".to_string(),
urls: SearchEngineUrls {
search: SearchEngineUrl {
base: "https://example.com/1".to_string(),
method: "GET".to_string(),
params: Vec::new(),
search_term_param_name: Some("q".to_string())
},
..Default::default()
},
..Default::default()
},
SearchEngineDefinition {
charset: "UTF-8".to_string(),
classification: SearchEngineClassification::General,
identifier: "test2".to_string(),
name: "Test 2".to_string(),
urls: SearchEngineUrls {
search: SearchEngineUrl {
base: "https://example.com/2".to_string(),
method: "GET".to_string(),
params: Vec::new(),
search_term_param_name: Some("search".to_string())
},
..Default::default()
},
..Default::default()
},
),
app_default_engine_id: Some("test1".to_string()),
app_private_default_engine_id: None
},
"Should have selected test1 for all matching locales and test2 for matching Focus IOS"
);
result = Arc::clone(&selector).filter_engine_configuration(SearchUserEnvironment {
distribution_id: "starship".to_string(),
app_name: SearchApplicationName::Firefox,
..Default::default()
});
assert!(
result.is_ok(),
"Should have filtered the configuration without error. {:?}",
result
);
assert_eq!(
result.unwrap(),
RefinedSearchConfig {
engines: vec!(
SearchEngineDefinition {
charset: "UTF-8".to_string(),
classification: SearchEngineClassification::General,
identifier: "test1".to_string(),
name: "Test 1".to_string(),
urls: SearchEngineUrls {
search: SearchEngineUrl {
base: "https://example.com/1".to_string(),
method: "GET".to_string(),
params: Vec::new(),
search_term_param_name: Some("q".to_string())
},
..Default::default()
},
..Default::default()
},
SearchEngineDefinition {
charset: "UTF-8".to_string(),
classification: SearchEngineClassification::General,
identifier: "test3".to_string(),
name: "Test 3".to_string(),
urls: SearchEngineUrls {
search: SearchEngineUrl {
base: "https://example.com/3".to_string(),
method: "GET".to_string(),
params: Vec::new(),
search_term_param_name: Some("trek".to_string())
},
..Default::default()
},
..Default::default()
},
),
app_default_engine_id: Some("test1".to_string()),
app_private_default_engine_id: None
}, "Should have selected test1 for all matching locales and test3 for matching the distribution id"
);
}
#[test]
fn test_set_config_should_handle_default_engines() {
let selector = Arc::new(SearchEngineSelector::new());
let config_result = Arc::clone(&selector).set_search_config(
json!({
"data": [
{
"recordType": "engine",
"identifier": "test",
"base": {
"name": "Test",
"classification": "general",
"urls": {
"search": {
"base": "https://example.com",
"method": "GET",
}
}
},
"variants": [{
"environment": {
"allRegionsAndLocales": true
}
}],
},
{
"recordType": "engine",
"identifier": "distro-default",
"base": {
"name": "Distribution Default",
"classification": "general",
"urls": {
"search": {
"base": "https://example.com",
"method": "GET"
}
}
},
"variants": [{
"environment": {
"allRegionsAndLocales": true
}
}],
},
{
"recordType": "engine",
"identifier": "private-default-FR",
"base": {
"name": "Private default FR",
"classification": "general",
"urls": {
"search": {
"base": "https://example.com",
"method": "GET"
}
}
},
"variants": [{
"environment": {
"allRegionsAndLocales": true,
}
}],
},
{
"recordType": "defaultEngines",
"globalDefault": "test",
"specificDefaults": [{
"environment": {
"distributions": ["test-distro"],
},
"default": "distro-default"
}, {
"environment": {
"regions": ["fr"]
},
"defaultPrivate": "private-default-FR"
}]
}
]
})
.to_string(),
);
assert!(
config_result.is_ok(),
"Should have set the configuration successfully. {:?}",
config_result
);
let expected_engines = vec![
SearchEngineDefinition {
charset: "UTF-8".to_string(),
classification: SearchEngineClassification::General,
identifier: "test".to_string(),
name: "Test".to_string(),
urls: SearchEngineUrls {
search: SearchEngineUrl {
base: "https://example.com".to_string(),
method: "GET".to_string(),
params: Vec::new(),
search_term_param_name: None,
},
..Default::default()
},
..Default::default()
},
SearchEngineDefinition {
charset: "UTF-8".to_string(),
classification: SearchEngineClassification::General,
identifier: "distro-default".to_string(),
name: "Distribution Default".to_string(),
urls: SearchEngineUrls {
search: SearchEngineUrl {
base: "https://example.com".to_string(),
method: "GET".to_string(),
params: Vec::new(),
search_term_param_name: None,
},
..Default::default()
},
..Default::default()
},
SearchEngineDefinition {
charset: "UTF-8".to_string(),
classification: SearchEngineClassification::General,
identifier: "private-default-FR".to_string(),
name: "Private default FR".to_string(),
urls: SearchEngineUrls {
search: SearchEngineUrl {
base: "https://example.com".to_string(),
method: "GET".to_string(),
params: Vec::new(),
search_term_param_name: None,
},
..Default::default()
},
..Default::default()
},
];
let result = Arc::clone(&selector).filter_engine_configuration(SearchUserEnvironment {
distribution_id: "test-distro".to_string(),
..Default::default()
});
assert!(
result.is_ok(),
"Should have filtered the configuration without error. {:?}",
result
);
assert_eq!(
result.unwrap(),
RefinedSearchConfig {
engines: expected_engines.clone(),
app_default_engine_id: Some("distro-default".to_string()),
app_private_default_engine_id: None
},
"Should have selected the default engine for the matching specific default"
);
let result = Arc::clone(&selector).filter_engine_configuration(SearchUserEnvironment {
region: "fr".into(),
distribution_id: String::new(),
..Default::default()
});
assert!(
result.is_ok(),
"Should have filtered the configuration without error. {:?}",
result
);
assert_eq!(
result.unwrap(),
RefinedSearchConfig {
engines: expected_engines,
app_default_engine_id: Some("test".to_string()),
app_private_default_engine_id: Some("private-default-FR".to_string())
},
"Should have selected the private default engine for the matching specific default"
);
}
}