Differential D5629 Diff 20087 java/src/main/java/org/softwareheritage/graph/server/App.java

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java/src/main/java/org/softwareheritage/graph/server/App.java

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import org.softwareheritage.graph.Stats;		import org.softwareheritage.graph.Stats;
import org.softwareheritage.graph.SWHID;		import org.softwareheritage.graph.SWHID;

import java.io.IOException;		import java.io.IOException;
import java.util.List;		import java.util.List;
import java.util.Map;		import java.util.Map;

/**		/**
* Web framework of the swh-graph server REST API.		* Web framework of the swh-graph server RPC API.
*		*
* @author The Software Heritage developers		* @author The Software Heritage developers
*/		*/

public class App {		public class App {
/**		/**
* Main entrypoint.		* Main entrypoint.
*		*
▲ Show 20 Lines • Show All 127 Lines • ▼ Show 20 Lines	private static void startServer(String graphPath, int port, boolean showTimings) throws IOException {

app.exception(IllegalArgumentException.class, (e, ctx) -> {		app.exception(IllegalArgumentException.class, (e, ctx) -> {
ctx.status(400);		ctx.status(400);
ctx.result(e.getMessage());		ctx.result(e.getMessage());
});		});
}		}

/**		/**
* Checks query strings names provided to the REST API.		* Checks query strings names provided to the RPC API.
*		*
* @param ctx Javalin HTTP request context		* @param ctx Javalin HTTP request context
* @param allowedFmt a regular expression describing allowed query strings names		* @param allowedFmt a regular expression describing allowed query strings names
* @throws IllegalArgumentException unknown query string provided		* @throws IllegalArgumentException unknown query string provided
*/		*/
private static void checkQueryStrings(Context ctx, String allowedFmt) {		private static void checkQueryStrings(Context ctx, String allowedFmt) {
Map<String, List<String>> queryParamMap = ctx.queryParamMap();		Map<String, List<String>> queryParamMap = ctx.queryParamMap();
for (String key : queryParamMap.keySet()) {		for (String key : queryParamMap.keySet()) {
if (!key.matches(allowedFmt)) {		if (!key.matches(allowedFmt)) {
throw new IllegalArgumentException("Unknown query string: " + key);		throw new IllegalArgumentException("Unknown query string: " + key);
}		}
}		}
}		}

/**		/**
* Formats endpoint result into final JSON for the REST API.		* Formats endpoint result into final JSON for the RPC API.
* <p>		* <p>
* Removes unwanted information if necessary, such as timings (to prevent use of side channels		* Removes unwanted information if necessary, such as timings (to prevent use of side channels
* attacks).		* attacks).
*		*
* @param output endpoint operation output which needs formatting		* @param output endpoint operation output which needs formatting
* @param showTimings true if timings should be in results metadata, false otherwise		* @param showTimings true if timings should be in results metadata, false otherwise
* @return final Object with desired JSON format		* @return final Object with desired JSON format
*/		*/
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