Add skeleton support for Directory and Identity in Exec IdStore

src/main/java/io/kamax/mxisd/backend/exec/ExecAuthStore.java

@@ -27,100 +27,28 @@ import io.kamax.matrix.json.GsonUtil;
 import io.kamax.mxisd.UserID;
 import io.kamax.mxisd.UserIdType;
 import io.kamax.mxisd.auth.provider.AuthenticatorProvider;
+import io.kamax.mxisd.backend.rest.RestAuthRequestJson;
 import io.kamax.mxisd.config.ExecConfig;
-import io.kamax.mxisd.exception.ConfigurationException;
 import io.kamax.mxisd.exception.InternalServerError;
-import io.kamax.mxisd.util.TriFunction;
-import org.apache.commons.io.IOUtils;
 import org.apache.commons.lang3.StringUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
-import org.zeroturnaround.exec.ProcessExecutor;
-import org.zeroturnaround.exec.ProcessResult;
 
-import java.io.IOException;
-import java.nio.charset.StandardCharsets;
-import java.util.*;
-import java.util.concurrent.TimeoutException;
-import java.util.function.BiConsumer;
-import java.util.function.Supplier;
-import java.util.stream.Collectors;
+import java.util.Objects;
+import java.util.Optional;
 
 @Component
 public class ExecAuthStore extends ExecStore implements AuthenticatorProvider {
 
     private final transient Logger log = LoggerFactory.getLogger(ExecAuthStore.class);
 
-    private Map<String, Supplier<String>> inputTemplates;
-    private Map<String, BiConsumer<String, ExecAuthResult>> outputMapper;
-
-    private TriFunction<String, _MatrixID, String, String> inputMapper;
-
     private ExecConfig.Auth cfg;
 
     @Autowired
     public ExecAuthStore(ExecConfig cfg) {
         this.cfg = Objects.requireNonNull(cfg.getAuth());
-
-        inputTemplates = new HashMap<>();
-        inputTemplates.put(JsonType, () -> {
-            JsonObject json = new JsonObject();
-            json.addProperty("localpart", cfg.getToken().getLocalpart());
-            json.addProperty("domain", cfg.getToken().getDomain());
-            json.addProperty("mxid", cfg.getToken().getMxid());
-            json.addProperty("password", cfg.getToken().getPassword());
-            return GsonUtil.get().toJson(json);
-        });
-        inputTemplates.put(MultilinesType, () -> cfg.getToken().getLocalpart() + System.lineSeparator() +
-                cfg.getToken().getDomain() + System.lineSeparator() +
-                cfg.getToken().getMxid() + System.lineSeparator() +
-                cfg.getToken().getPassword() + System.lineSeparator()
-        );
-
-        inputMapper = (input, uId, password) -> input.replace(cfg.getToken().getLocalpart(), uId.getLocalPart())
-                .replace(cfg.getToken().getDomain(), uId.getDomain())
-                .replace(cfg.getToken().getMxid(), uId.getId())
-                .replace(cfg.getToken().getPassword(), password);
-
-        outputMapper = new HashMap<>();
-        outputMapper.put(JsonType, (output, result) -> {
-            JsonObject data = GsonUtil.getObj(GsonUtil.parseObj(output), "auth");
-            GsonUtil.findPrimitive(data, "success")
-                    .map(JsonPrimitive::getAsBoolean)
-                    .ifPresent(result::setSuccess);
-            GsonUtil.findObj(data, "profile")
-                    .flatMap(p -> GsonUtil.findString(p, "display_name"))
-                    .ifPresent(v -> result.getProfile().setDisplayName(v));
-        });
-        outputMapper.put(MultilinesType, (output, result) -> {
-            String[] lines = output.split("\\R");
-            if (lines.length > 2) {
-                throw new InternalServerError("Exec auth command returned more than 2 lines (" + lines.length + ")");
-            }
-
-            result.setSuccess(Optional.ofNullable(StringUtils.isEmpty(lines[0]) ? null : lines[0])
-                    .map(v -> StringUtils.equalsAnyIgnoreCase(v, "true", "1"))
-                    .orElse(result.isSuccess()));
-
-            if (lines.length == 2) {
-                Optional.ofNullable(StringUtils.isEmpty(lines[1]) ? null : lines[1])
-                        .ifPresent(v -> result.getProfile().setDisplayName(v));
-            }
-        });
-
-        validateConfig();
-    }
-
-    private void validateConfig() {
-        if (StringUtils.isNotEmpty(cfg.getInput().getType()) && !inputTemplates.containsKey(cfg.getInput().getType())) {
-            throw new ConfigurationException("Exec Auth input type is not valid: " + cfg.getInput().getType());
-        }
-
-        if (StringUtils.isNotEmpty(cfg.getOutput().getType()) && !outputMapper.containsKey(cfg.getOutput().getType())) {
-            throw new ConfigurationException("Exec Auth output type is not valid: " + cfg.getInput().getType());
-        }
     }
 
     @Override
@@ -138,52 +66,64 @@ public class ExecAuthStore extends ExecStore implements AuthenticatorProvider {
         ExecAuthResult result = new ExecAuthResult();
         result.setId(new UserID(UserIdType.Localpart, uId.getLocalPart()));
 
-        ProcessExecutor psExec = new ProcessExecutor().readOutput(true);
+        Processor<ExecAuthResult> process = new Processor<>();
+        process.withConfig(cfg);
+        process.addTokenMapper(cfg.getToken().getLocalpart(), uId::getLocalPart);
+        process.addTokenMapper(cfg.getToken().getDomain(), uId::getDomain);
+        process.addTokenMapper(cfg.getToken().getMxid(), uId::getId);
+        process.addTokenMapper(cfg.getToken().getPassword(), () -> password);
 
-        List<String> args = new ArrayList<>();
-        args.add(cfg.getCommand());
-        args.addAll(cfg.getArgs().stream().map(arg -> inputMapper.apply(arg, uId, password)).collect(Collectors.toList()));
-        psExec.command(args);
+        process.addInputTemplate(JsonType, tokens -> {
+            RestAuthRequestJson json = new RestAuthRequestJson();
+            json.setLocalpart(tokens.getLocalpart());
+            json.setDomain(tokens.getDomain());
+            json.setMxid(tokens.getMxid());
+            json.setPassword(tokens.getPassword());
+            return GsonUtil.get().toJson(json);
+        });
+        process.addInputTemplate(MultilinesType, tokens -> tokens.getLocalpart() + System.lineSeparator() +
+                tokens.getDomain() + System.lineSeparator() +
+                tokens.getMxid() + System.lineSeparator() +
+                tokens.getPassword() + System.lineSeparator()
+        );
 
-        psExec.environment(new HashMap<>(cfg.getEnv()).entrySet().stream()
-                .peek(e -> e.setValue(inputMapper.apply(e.getValue(), uId, password)))
-                .collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue)));
+        process.withExitHandler(pr -> result.setExitStatus(pr.getExitValue()));
 
-        if (StringUtils.isNotBlank(cfg.getInput().getType())) {
-            String template = cfg.getInput().getTemplate().orElseGet(inputTemplates.get(cfg.getInput().getType()));
-            String input = inputMapper.apply(template, uId, password);
-            psExec.redirectInput(IOUtils.toInputStream(input, StandardCharsets.UTF_8));
-        }
+        process.withSuccessHandler(pr -> result.setSuccess(true));
+        process.withSuccessDefault(o -> result);
+        process.addSuccessMapper(JsonType, output -> {
+            JsonObject data = GsonUtil.getObj(GsonUtil.parseObj(output), "auth");
+            GsonUtil.findPrimitive(data, "success")
+                    .map(JsonPrimitive::getAsBoolean)
+                    .ifPresent(result::setSuccess);
+            GsonUtil.findObj(data, "profile")
+                    .flatMap(p -> GsonUtil.findString(p, "display_name"))
+                    .ifPresent(v -> result.getProfile().setDisplayName(v));
 
-        try {
-            log.info("Executing {}", cfg.getCommand());
-            ProcessResult psResult = psExec.execute();
-            result.setExitStatus(psResult.getExitValue());
-            String output = psResult.outputUTF8();
-            log.debug("Command output:{}{}", System.lineSeparator(), output);
+            return result;
+        });
+        process.addSuccessMapper(MultilinesType, output -> {
+            String[] lines = output.split("\\R");
+            if (lines.length > 2) {
+                throw new InternalServerError("Exec auth command returned more than 2 lines (" + lines.length + ")");
+            }
 
-            log.info("Exit status: {}", result.getExitStatus());
-            if (cfg.getExit().getSuccess().contains(result.getExitStatus())) {
-                result.setSuccess(true);
-                if (result.isSuccess() && StringUtils.isNotEmpty(output)) {
-                    outputMapper.get(cfg.getOutput().getType()).accept(output, result);
-                } else {
-                    if (StringUtils.isNotEmpty(output)) {
-                        log.info("Exec auth failed with output:{}{}", System.lineSeparator(), output);
-                    }
-                }
-            } else if (cfg.getExit().getFailure().contains(result.getExitStatus())) {
-                log.debug("{} stdout:{}{}", cfg.getCommand(), System.lineSeparator(), output);
-                result.setSuccess(false);
-            } else {
-                log.error("{} stdout:{}{}", cfg.getCommand(), System.lineSeparator(), output);
-                throw new InternalServerError("Exec auth command returned with unexpected exit status");
+            result.setSuccess(Optional.ofNullable(StringUtils.isEmpty(lines[0]) ? null : lines[0])
+                    .map(v -> StringUtils.equalsAnyIgnoreCase(v, "true", "1"))
+                    .orElse(result.isSuccess()));
+
+            if (lines.length == 2) {
+                Optional.ofNullable(StringUtils.isEmpty(lines[1]) ? null : lines[1])
+                        .ifPresent(v -> result.getProfile().setDisplayName(v));
             }
 
             return result;
-        } catch (IOException | InterruptedException | TimeoutException e) {
-            throw new InternalServerError(e);
-        }
+        });
+
+        process.withFailureHandler(pr -> result.setSuccess(false));
+        process.withFailureDefault(o -> result);
+
+        return process.execute();
     }
 
 }

src/main/java/io/kamax/mxisd/backend/exec/ExecDirectoryStore.java

@@ -20,10 +20,13 @@
 
 package io.kamax.mxisd.backend.exec;
 
+import io.kamax.matrix.MatrixID;
+import io.kamax.matrix.json.GsonUtil;
 import io.kamax.mxisd.config.ExecConfig;
+import io.kamax.mxisd.config.MatrixConfig;
+import io.kamax.mxisd.controller.directory.v1.io.UserDirectorySearchRequest;
 import io.kamax.mxisd.controller.directory.v1.io.UserDirectorySearchResult;
 import io.kamax.mxisd.directory.IDirectoryProvider;
-import io.kamax.mxisd.exception.NotImplementedException;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
 
@@ -31,10 +34,12 @@ import org.springframework.stereotype.Component;
 public class ExecDirectoryStore extends ExecStore implements IDirectoryProvider {
 
     private ExecConfig.Directory cfg;
+    private MatrixConfig mxCfg;
 
     @Autowired
-    public ExecDirectoryStore(ExecConfig cfg) {
+    public ExecDirectoryStore(ExecConfig cfg, MatrixConfig mxCfg) {
         this.cfg = cfg.getDirectory();
+        this.mxCfg = mxCfg;
     }
 
     @Override
@@ -42,14 +47,35 @@ public class ExecDirectoryStore extends ExecStore implements IDirectoryProvider
         return cfg.isEnabled();
     }
 
+    private UserDirectorySearchResult search(ExecConfig.Process cfg, UserDirectorySearchRequest request) {
+        Processor<UserDirectorySearchResult> processor = new Processor<>();
+        processor.withConfig(cfg);
+        processor.addInputTemplate(JsonType, tokens -> GsonUtil.get().toJson(new UserDirectorySearchRequest(tokens.getType(), tokens.getQuery())));
+        processor.addInputTemplate(MultilinesType, tokens -> tokens.getType() + System.lineSeparator() + tokens.getQuery());
+
+        processor.addTokenMapper(cfg.getToken().getType(), request::getBy);
+        processor.addTokenMapper(cfg.getToken().getQuery(), request::getSearchTerm);
+
+        processor.addSuccessMapper(JsonType, output -> {
+            UserDirectorySearchResult response = GsonUtil.get().fromJson(output, UserDirectorySearchResult.class);
+            for (UserDirectorySearchResult.Result result : response.getResults()) {
+                result.setUserId(MatrixID.asAcceptable(result.getUserId(), mxCfg.getDomain()).getId());
+            }
+            return response;
+        });
+        processor.withFailureDefault(output -> new UserDirectorySearchResult());
+
+        return processor.execute();
+    }
+
     @Override
     public UserDirectorySearchResult searchByDisplayName(String query) {
-        throw new NotImplementedException(this.getClass().getName());
+        return search(cfg.getSearch().getByName(), new UserDirectorySearchRequest("name", query));
     }
 
     @Override
     public UserDirectorySearchResult searchBy3pid(String query) {
-        throw new NotImplementedException(this.getClass().getName());
+        return search(cfg.getSearch().getByName(), new UserDirectorySearchRequest("threepid", query));
     }
 
 }

src/main/java/io/kamax/mxisd/backend/exec/ExecIdentityStore.java

@@ -20,35 +20,29 @@
 
 package io.kamax.mxisd.backend.exec;
 
+import com.google.gson.JsonArray;
 import com.google.gson.JsonObject;
 import io.kamax.matrix.MatrixID;
-import io.kamax.matrix._MatrixID;
+import io.kamax.matrix.ThreePid;
 import io.kamax.matrix.json.GsonUtil;
+import io.kamax.mxisd.UserIdType;
+import io.kamax.mxisd.backend.rest.LookupBulkResponseJson;
 import io.kamax.mxisd.config.ExecConfig;
 import io.kamax.mxisd.config.MatrixConfig;
-import io.kamax.mxisd.exception.ConfigurationException;
 import io.kamax.mxisd.exception.InternalServerError;
-import io.kamax.mxisd.exception.NotImplementedException;
 import io.kamax.mxisd.lookup.SingleLookupReply;
 import io.kamax.mxisd.lookup.SingleLookupRequest;
 import io.kamax.mxisd.lookup.ThreePidMapping;
 import io.kamax.mxisd.lookup.provider.IThreePidProvider;
-import org.apache.commons.io.IOUtils;
 import org.apache.commons.lang3.StringUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
-import org.zeroturnaround.exec.ProcessExecutor;
-import org.zeroturnaround.exec.ProcessResult;
 
-import java.io.IOException;
-import java.nio.charset.StandardCharsets;
-import java.util.*;
-import java.util.concurrent.TimeoutException;
-import java.util.function.BiFunction;
-import java.util.function.Function;
-import java.util.function.Supplier;
+import java.util.Collections;
+import java.util.List;
+import java.util.Optional;
 import java.util.stream.Collectors;
 
 @Component
@@ -59,85 +53,10 @@ public class ExecIdentityStore extends ExecStore implements IThreePidProvider {
     private final ExecConfig.Identity cfg;
     private final MatrixConfig mxCfg;
 
-    private BiFunction<String, SingleLookupRequest, String> singleInputMap;
-    private Map<String, Supplier<String>> singleInputTemplates;
-    private Map<String, Function<String, Optional<_MatrixID>>> singleOutputMap;
-
     @Autowired
     public ExecIdentityStore(ExecConfig cfg, MatrixConfig mxCfg) {
         this.cfg = cfg.getIdentity();
         this.mxCfg = mxCfg;
-
-        singleInputMap = (v, request) -> v.replace(cfg.getToken().getMedium(), request.getType())
-                .replace(cfg.getToken().getAddress(), request.getThreePid());
-
-        singleInputTemplates = new HashMap<>();
-        singleInputTemplates.put(JsonType, () -> {
-            JsonObject json = new JsonObject();
-            json.addProperty("medium", cfg.getToken().getMedium());
-            json.addProperty("address", cfg.getToken().getAddress());
-            return GsonUtil.get().toJson(json);
-        });
-        singleInputTemplates.put(MultilinesType, () -> cfg.getToken().getMedium()
-                + System.lineSeparator()
-                + cfg.getToken().getAddress()
-        );
-
-        singleOutputMap = new HashMap<>();
-        singleOutputMap.put(JsonType, output -> {
-            if (StringUtils.isBlank(output)) {
-                return Optional.empty();
-            }
-
-            return GsonUtil.findObj(GsonUtil.parseObj(output), "lookup").map(lookup -> {
-                String type = GsonUtil.getStringOrThrow(lookup, "type");
-                String value = GsonUtil.getStringOrThrow(lookup, "value");
-                if (StringUtils.equals(type, "uid")) {
-                    return MatrixID.asAcceptable(value, mxCfg.getDomain());
-                }
-
-                if (StringUtils.equals(type, "mxid")) {
-                    return MatrixID.asAcceptable(value);
-                }
-
-                throw new InternalServerError("Invalid user type: " + type);
-            });
-        });
-        singleOutputMap.put(MultilinesType, output -> {
-            String[] lines = output.split("\\R");
-            if (lines.length > 2) {
-                throw new InternalServerError("Exec auth command returned more than 2 lines (" + lines.length + ")");
-            }
-
-            if (lines.length == 1 && StringUtils.isBlank(lines[0])) {
-                return Optional.empty();
-            }
-
-            String type = StringUtils.trimToEmpty(lines.length == 1 ? "uid" : lines[0]);
-            String value = StringUtils.trimToEmpty(lines.length == 2 ? lines[1] : lines[0]);
-
-            if (StringUtils.equals(type, "uid")) {
-                return Optional.of(MatrixID.asAcceptable(value, mxCfg.getDomain()));
-            }
-
-            if (StringUtils.equals(type, "mxid")) {
-                return Optional.of(MatrixID.asAcceptable(value));
-            }
-
-            throw new InternalServerError("Invalid user type: " + type);
-        });
-
-        validateConfig();
-    }
-
-    private void validateConfig() {
-        if (StringUtils.isNotEmpty(cfg.getInput().getType()) && !singleInputTemplates.containsKey(cfg.getInput().getType())) {
-            throw new ConfigurationException("Exec Identity Single Lookup: input type is not valid: " + cfg.getInput().getType());
-        }
-
-        if (StringUtils.isNotEmpty(cfg.getOutput().getType()) && !singleOutputMap.containsKey(cfg.getOutput().getType())) {
-            throw new ConfigurationException("Exec Auth output type is not valid: " + cfg.getInput().getType());
-        }
     }
 
     @Override
@@ -155,55 +74,125 @@ public class ExecIdentityStore extends ExecStore implements IThreePidProvider {
         return cfg.getPriority();
     }
 
+    private ExecConfig.Process getSingleCfg() {
+        return cfg.getLookup().getSingle();
+    }
+
     @Override
     public Optional<SingleLookupReply> find(SingleLookupRequest request) {
-        ProcessExecutor psExec = new ProcessExecutor().readOutput(true);
+        Processor<Optional<SingleLookupReply>> processor = new Processor<>();
+        processor.withConfig(cfg.getLookup().getSingle());
 
-        List<String> args = new ArrayList<>();
-        args.add(cfg.getCommand());
-        args.addAll(cfg.getArgs().stream().map(arg -> singleInputMap.apply(arg, request)).collect(Collectors.toList()));
-        psExec.command(args);
+        processor.addTokenMapper(getSingleCfg().getToken().getMedium(), request::getType);
+        processor.addTokenMapper(getSingleCfg().getToken().getAddress(), request::getThreePid);
 
-        psExec.environment(new HashMap<>(cfg.getEnv()).entrySet().stream()
-                .peek(e -> e.setValue(singleInputMap.apply(e.getValue(), request)))
-                .collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue)));
+        processor.addInputTemplate(JsonType, tokens -> {
+            JsonObject json = new JsonObject();
+            json.addProperty("medium", tokens.getMedium());
+            json.addProperty("address", tokens.getAddress());
+            return GsonUtil.get().toJson(json);
+        });
+        processor.addInputTemplate(MultilinesType, tokens -> tokens.getMedium()
+                + System.lineSeparator()
+                + tokens.getAddress()
+        );
 
-        if (StringUtils.isNotBlank(cfg.getInput().getType())) {
-            String template = cfg.getInput().getTemplate().orElseGet(singleInputTemplates.get(cfg.getInput().getType()));
-            String input = singleInputMap.apply(template, request);
-            psExec.redirectInput(IOUtils.toInputStream(input, StandardCharsets.UTF_8));
-        }
+        processor.addSuccessMapper(JsonType, output -> {
+            if (StringUtils.isBlank(output)) {
+                return Optional.empty();
+            }
 
-        try {
-            log.info("Executing {}", cfg.getCommand());
-            ProcessResult psResult = psExec.execute();
-            String output = psResult.outputUTF8();
-            log.debug("Command output:{}{}", System.lineSeparator(), output);
-
-            log.info("Exit status: {}", psResult.getExitValue());
-            if (cfg.getExit().getSuccess().contains(psResult.getExitValue())) {
-                if (StringUtils.isBlank(output)) {
-                    return Optional.empty();
+            return GsonUtil.findObj(GsonUtil.parseObj(output), "lookup").map(lookup -> {
+                String type = GsonUtil.getStringOrThrow(lookup, "type");
+                String value = GsonUtil.getStringOrThrow(lookup, "value");
+                if (UserIdType.Localpart.is(type)) {
+                    return MatrixID.asAcceptable(value, mxCfg.getDomain());
                 }
 
-                return singleOutputMap.get(cfg.getOutput().getType())
-                        .apply(output)
-                        .map(mxId -> new SingleLookupReply(request, mxId));
-            } else if (cfg.getExit().getFailure().contains(psResult.getExitValue())) {
-                log.debug("{} stdout:{}{}", cfg.getCommand(), System.lineSeparator(), output);
-                return Optional.empty();
-            } else {
-                log.error("{} stdout:{}{}", cfg.getCommand(), System.lineSeparator(), output);
-                throw new InternalServerError("Exec auth command returned with unexpected exit status");
+                if (UserIdType.MatrixID.is(type)) {
+                    return MatrixID.asAcceptable(value);
+                }
+
+                throw new InternalServerError("Invalid user type: " + type);
+            }).map(mxId -> new SingleLookupReply(request, mxId));
+        });
+
+        processor.addSuccessMapper(MultilinesType, output -> {
+            String[] lines = output.split("\\R");
+            if (lines.length > 2) {
+                throw new InternalServerError("Exec auth command returned more than 2 lines (" + lines.length + ")");
             }
-        } catch (IOException | InterruptedException | TimeoutException e) {
-            throw new InternalServerError(e);
-        }
+
+            if (lines.length == 1 && StringUtils.isBlank(lines[0])) {
+                return Optional.empty();
+            }
+
+            String type = StringUtils.trimToEmpty(lines.length == 1 ? "uid" : lines[0]);
+            String value = StringUtils.trimToEmpty(lines.length == 2 ? lines[1] : lines[0]);
+
+            if (UserIdType.Localpart.is(type)) {
+                return Optional.of(new SingleLookupReply(request, MatrixID.asAcceptable(value, mxCfg.getDomain())));
+            }
+
+            if (UserIdType.MatrixID.is(type)) {
+                return Optional.of(new SingleLookupReply(request, MatrixID.asAcceptable(value)));
+            }
+
+            throw new InternalServerError("Invalid user type: " + type);
+        });
+
+        processor.withFailureDefault(o -> Optional.empty());
+
+        return processor.execute();
     }
 
     @Override
     public List<ThreePidMapping> populate(List<ThreePidMapping> mappings) {
-        throw new NotImplementedException(this.getClass().getName());
+        Processor<List<ThreePidMapping>> processor = new Processor<>();
+        processor.withConfig(cfg.getLookup().getBulk());
+
+        processor.addInput(JsonType, () -> {
+            JsonArray tpids = GsonUtil.asArray(mappings.stream()
+                    .map(mapping -> GsonUtil.get().toJsonTree(new ThreePid(mapping.getMedium(), mapping.getValue())))
+                    .collect(Collectors.toList()));
+            return GsonUtil.get().toJson(GsonUtil.makeObj("lookup", tpids));
+        });
+        processor.addInput(MultilinesType, () -> {
+            StringBuilder input = new StringBuilder();
+            for (ThreePidMapping mapping : mappings) {
+                input.append(mapping.getMedium()).append("\t").append(mapping.getValue()).append(System.lineSeparator());
+            }
+            return input.toString();
+        });
+
+        processor.addSuccessMapper(JsonType, output -> {
+            if (StringUtils.isBlank(output)) {
+                return Collections.emptyList();
+            }
+
+            LookupBulkResponseJson response = GsonUtil.get().fromJson(output, LookupBulkResponseJson.class);
+            return response.getLookup().stream().map(item -> {
+                ThreePidMapping mapping = new ThreePidMapping();
+                mapping.setMedium(item.getMedium());
+                mapping.setValue(item.getAddress());
+
+                if (UserIdType.Localpart.is(item.getId().getType())) {
+                    mapping.setValue(MatrixID.asAcceptable(item.getId().getValue(), mxCfg.getDomain()).getId());
+                    return mapping;
+                }
+
+                if (UserIdType.MatrixID.is(item.getId().getType())) {
+                    mapping.setValue(MatrixID.asAcceptable(item.getId().getValue()).getId());
+                    return mapping;
+                }
+
+                throw new InternalServerError("Invalid user type: " + item.getId().getType());
+            }).collect(Collectors.toList());
+        });
+
+        processor.withFailureDefault(output -> Collections.emptyList());
+
+        return processor.execute();
     }
 
 }

src/main/java/io/kamax/mxisd/backend/exec/ExecStore.java

@@ -20,9 +20,227 @@
 
 package io.kamax.mxisd.backend.exec;
 
-public abstract class ExecStore {
+import io.kamax.mxisd.config.ExecConfig;
+import io.kamax.mxisd.exception.InternalServerError;
+import org.apache.commons.io.IOUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.zeroturnaround.exec.ProcessExecutor;
+import org.zeroturnaround.exec.ProcessResult;
+
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+import java.util.*;
+import java.util.concurrent.TimeoutException;
+import java.util.function.Consumer;
+import java.util.function.Function;
+import java.util.function.Supplier;
+import java.util.stream.Collectors;
+
+public class ExecStore {
 
     public static final String JsonType = "json";
     public static final String MultilinesType = "multilines";
 
+    private final Logger log = LoggerFactory.getLogger(ExecStore.class);
+
+    public class Processor<V> {
+
+        private ExecConfig.Process cfg;
+
+        private Supplier<Optional<String>> inputSupplier;
+        private Function<String, String> inputTypeMapper;
+        private Function<String, String> inputUnknownTypeMapper;
+        private Map<String, Supplier<String>> inputTypeSuppliers;
+
+        private Map<String, Function<ExecConfig.TokenOverride, String>> inputTypeTemplates;
+        private Supplier<String> inputTypeNoTemplateHandler;
+        private Map<String, Function<ExecConfig.TokenOverride, String>> inputTypeTokenizers;
+        private Map<String, Supplier<String>> tokenMappers;
+        private Function<String, String> tokenHandler;
+
+        private Consumer<ProcessResult> onExitHandler;
+        private Consumer<ProcessResult> successHandler;
+        private Map<String, Function<String, V>> successMappers;
+        private Function<String, V> successDefault;
+        private Consumer<ProcessResult> failureHandler;
+        private Map<String, Function<String, V>> failureMappers;
+        private Function<String, V> failureDefault;
+        private Consumer<ProcessResult> unknownHandler;
+        private Map<String, Function<String, V>> unknownMappers;
+        private Function<String, V> unknownDefault;
+
+        public Processor() {
+            tokenMappers = new HashMap<>();
+            inputTypeSuppliers = new HashMap<>();
+            inputTypeTemplates = new HashMap<>();
+
+            tokenHandler = input -> {
+                for (Map.Entry<String, Supplier<String>> entry : tokenMappers.entrySet()) {
+                    input = input.replace(entry.getKey(), entry.getValue().get());
+                }
+                return input;
+            };
+
+            inputTypeNoTemplateHandler = () -> cfg.getInput().getType()
+                    .map(type -> inputTypeTemplates.get(type).apply(cfg.getToken()))
+                    .orElse("");
+
+            inputUnknownTypeMapper = type -> tokenHandler.apply(cfg.getInput().getTemplate().orElseGet(inputTypeNoTemplateHandler));
+
+            inputTypeMapper = type -> {
+                if (!inputTypeSuppliers.containsKey(type)) {
+                    return inputUnknownTypeMapper.apply(type);
+                }
+
+                return inputTypeSuppliers.get(type).get();
+            };
+
+            inputSupplier = () -> cfg.getInput().getType().map(type -> inputTypeMapper.apply(type));
+
+            onExitHandler = pr -> {
+            };
+
+            successMappers = new HashMap<>();
+            successHandler = pr -> {
+            };
+            successDefault = output -> {
+                log.info("{} stdout: {}{}", cfg.getCommand(), System.lineSeparator(), output);
+                throw new InternalServerError("Exec command has no success handler configured. This is a bug. Please report.");
+            };
+
+            failureHandler = pr -> {
+            };
+            failureMappers = new HashMap<>();
+            failureDefault = output -> {
+                log.info("{} stdout: {}{}", cfg.getCommand(), System.lineSeparator(), output);
+                throw new InternalServerError("Exec command has no failure handler configured. This is a bug. Please report.");
+            };
+
+            unknownHandler = pr -> log.warn("Unexpected exit status: {}", pr.getExitValue());
+            unknownMappers = new HashMap<>();
+            unknownDefault = output -> {
+                log.error("{} stdout:{}{}", cfg.getCommand(), System.lineSeparator(), output);
+                throw new InternalServerError("Exec command returned with unexpected exit status");
+            };
+        }
+
+        public Processor<V> withConfig(ExecConfig.Process cfg) {
+            this.cfg = cfg;
+            return this;
+        }
+
+        public Processor<V> addTokenMapper(String token, Supplier<String> data) {
+            tokenMappers.put(token, data);
+            return this;
+        }
+
+        public Processor<V> withTokenHandler(Function<String, String> tokenHandler) {
+            this.tokenHandler = tokenHandler;
+            return this;
+        }
+
+        public Processor<V> addInput(String type, Supplier<String> handler) {
+            inputTypeSuppliers.put(type, handler);
+            return this;
+        }
+
+        public Processor<V> addInputTemplate(String type, Function<ExecConfig.TokenOverride, String> template) {
+            inputTypeTemplates.put(type, template);
+            return this;
+        }
+
+        public Processor<V> withExitHandler(Consumer<ProcessResult> handler) {
+            onExitHandler = handler;
+            return this;
+        }
+
+        public Processor<V> withSuccessHandler(Consumer<ProcessResult> handler) {
+            successHandler = handler;
+            return this;
+        }
+
+        public Processor<V> addSuccessMapper(String type, Function<String, V> mapper) {
+            successMappers.put(type, mapper);
+            return this;
+        }
+
+        public Processor<V> withSuccessDefault(Function<String, V> mapper) {
+            successDefault = mapper;
+            return this;
+        }
+
+        public Processor<V> withFailureHandler(Consumer<ProcessResult> handler) {
+            failureHandler = handler;
+            return this;
+        }
+
+        public Processor<V> addFailureMapper(String type, Function<String, V> mapper) {
+            failureMappers.put(type, mapper);
+            return this;
+        }
+
+        public Processor<V> withFailureDefault(Function<String, V> mapper) {
+            failureDefault = mapper;
+            return this;
+        }
+
+        public Processor<V> addUnknownMapper(String type, Function<String, V> mapper) {
+            unknownMappers.put(type, mapper);
+            return this;
+        }
+
+        public Processor<V> withUnknownDefault(Function<String, V> mapper) {
+            unknownDefault = mapper;
+            return this;
+        }
+
+        V execute() {
+            log.info("Executing {}", cfg.getCommand());
+
+            try {
+                ProcessExecutor psExec = new ProcessExecutor().readOutput(true);
+
+                List<String> args = new ArrayList<>();
+                args.add(cfg.getCommand());
+                args.addAll(cfg.getArgs().stream().map(arg -> tokenHandler.apply(arg)).collect(Collectors.toList()));
+                psExec.command(args);
+
+                psExec.environment(new HashMap<>(cfg.getEnv()).entrySet().stream()
+                        .peek(e -> e.setValue(tokenHandler.apply(e.getValue())))
+                        .collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue)));
+
+                inputSupplier.get().ifPresent(input -> psExec.redirectInput(IOUtils.toInputStream(input, StandardCharsets.UTF_8)));
+
+                ProcessResult psResult = psExec.execute();
+                String output = psResult.outputUTF8();
+                onExitHandler.accept(psResult);
+
+                if (cfg.getExit().getSuccess().contains(psResult.getExitValue())) {
+                    successHandler.accept(psResult);
+
+                    return cfg.getOutput().getType()
+                            .map(type -> successMappers.getOrDefault(type, successDefault).apply(output))
+                            .orElseGet(() -> successDefault.apply(output));
+                } else if (cfg.getExit().getFailure().contains(psResult.getExitValue())) {
+                    failureHandler.accept(psResult);
+
+                    return cfg.getOutput().getType()
+                            .map(type -> failureMappers.getOrDefault(type, failureDefault).apply(output))
+                            .orElseGet(() -> failureDefault.apply(output));
+                } else {
+                    unknownHandler.accept(psResult);
+
+                    return cfg.getOutput().getType()
+                            .map(type -> unknownMappers.getOrDefault(type, unknownDefault).apply(output))
+                            .orElseGet(() -> unknownDefault.apply(output));
+                }
+            } catch (IOException | InterruptedException | TimeoutException e) {
+                log.error("Failed to execute {}", cfg.getCommand());
+                throw new InternalServerError(e);
+            }
+        }
+
+    }
+
 }

src/main/java/io/kamax/mxisd/config/ExecConfig.java

@@ -36,8 +36,8 @@ public class ExecConfig {
         private String type;
         private String template;
 
-        public String getType() {
-            return type;
+        public Optional<String> getType() {
+            return Optional.ofNullable(type);
         }
 
         public void setType(String type) {
@@ -83,6 +83,10 @@ public class ExecConfig {
         private String domain;
         private String mxid;
         private String password;
+        private String medium;
+        private String address;
+        private String type;
+        private String query;
 
         public String getLocalpart() {
             return StringUtils.defaultIfEmpty(localpart, getToken().getLocalpart());
@@ -116,6 +120,38 @@ public class ExecConfig {
             this.password = password;
         }
 
+        public String getMedium() {
+            return StringUtils.defaultIfEmpty(medium, getToken().getMedium());
+        }
+
+        public void setMedium(String medium) {
+            this.medium = medium;
+        }
+
+        public String getAddress() {
+            return StringUtils.defaultIfEmpty(address, getToken().getAddress());
+        }
+
+        public void setAddress(String address) {
+            this.address = address;
+        }
+
+        public String getType() {
+            return StringUtils.defaultIfEmpty(type, getToken().getType());
+        }
+
+        public void setType(String type) {
+            this.type = type;
+        }
+
+        public String getQuery() {
+            return StringUtils.defaultIfEmpty(query, getToken().getQuery());
+        }
+
+        public void setQuery(String query) {
+            this.query = query;
+        }
+
     }
 
     public class Token {
@@ -126,6 +162,8 @@ public class ExecConfig {
         private String password = "{password}";
         private String medium = "{medium}";
         private String address = "{address}";
+        private String type = "{type}";
+        private String query = "{query}";
 
         public String getLocalpart() {
             return localpart;
@@ -175,6 +213,22 @@ public class ExecConfig {
             this.address = address;
         }
 
+        public String getType() {
+            return type;
+        }
+
+        public void setType(String type) {
+            this.type = type;
+        }
+
+        public String getQuery() {
+            return query;
+        }
+
+        public void setQuery(String query) {
+            this.query = query;
+        }
+
     }
 
     public class Process {
@@ -311,10 +365,34 @@ public class ExecConfig {
 
     }
 
-    public class Identity extends Process {
+    public class Lookup {
+
+        private Process single = new Process();
+        private Process bulk = new Process();
+
+        public Process getSingle() {
+            return single;
+        }
+
+        public void setSingle(Process single) {
+            this.single = single;
+        }
+
+        public Process getBulk() {
+            return bulk;
+        }
+
+        public void setBulk(Process bulk) {
+            this.bulk = bulk;
+        }
+
+    }
+
+    public class Identity {
 
         private Boolean enabled;
         private int priority;
+        private Lookup lookup = new Lookup();
 
         public Boolean isEnabled() {
             return enabled;
@@ -332,6 +410,14 @@ public class ExecConfig {
             this.priority = priority;
         }
 
+        public Lookup getLookup() {
+            return lookup;
+        }
+
+        public void setLookup(Lookup lookup) {
+            this.lookup = lookup;
+        }
+
     }
 
     public class Profile extends Process {

src/main/java/io/kamax/mxisd/controller/directory/v1/io/UserDirectorySearchRequest.java

@@ -29,6 +29,11 @@ public class UserDirectorySearchRequest {
         setSearchTerm(searchTerm);
     }
 
+    public UserDirectorySearchRequest(String type, String searchTerm) {
+        setBy(type);
+        setSearchTerm(searchTerm);
+    }
+
     public String getBy() {
         return by;
     }

src/test/java/io/kamax/mxisd/backend/exec/auth/input/ExecAuthArgsTest.java

@@ -18,11 +18,11 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package io.kamax.mxisd.backend.exec.input;
+package io.kamax.mxisd.backend.exec.auth.input;
 
 import java.util.Arrays;
 
-public class ArgsTest extends InputTest {
+public class ExecAuthArgsTest extends ExecAuthTest {
 
     @Override
     protected void setValidCommand() {

src/test/java/io/kamax/mxisd/backend/exec/auth/input/ExecAuthEnvTest.java

@@ -18,11 +18,11 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package io.kamax.mxisd.backend.exec.input;
+package io.kamax.mxisd.backend.exec.auth.input;
 
 import java.util.HashMap;
 
-public class EnvTest extends InputTest {
+public class ExecAuthEnvTest extends ExecAuthTest {
 
     private final String LocalpartEnv = "LOCALPART";
     private final String DomainEnv = "DOMAIN";

src/test/java/io/kamax/mxisd/backend/exec/auth/input/ExecAuthInputMultilinesTest.java

@@ -18,11 +18,11 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package io.kamax.mxisd.backend.exec.input;
+package io.kamax.mxisd.backend.exec.auth.input;
 
 import io.kamax.mxisd.backend.exec.ExecStore;
 
-public class MultilinesTest extends InputTest {
+public class ExecAuthInputMultilinesTest extends ExecAuthTest {
 
     @Override
     protected void setValidCommand() {

src/test/java/io/kamax/mxisd/backend/exec/auth/input/ExecAuthTest.java

@@ -18,7 +18,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package io.kamax.mxisd.backend.exec.input;
+package io.kamax.mxisd.backend.exec.auth.input;
 
 import io.kamax.matrix.MatrixID;
 import io.kamax.matrix._MatrixID;
@@ -35,7 +35,7 @@ import java.util.Collections;
 
 import static org.junit.Assert.assertEquals;
 
-public abstract class InputTest {
+public abstract class ExecAuthTest {
 
     protected final ExecConfig cfg;
     protected final ExecAuthStore p;
@@ -90,7 +90,7 @@ public abstract class InputTest {
         cfg.getAuth().addEnv("REQ_PASS", requiredPass);
     }
 
-    public InputTest() {
+    public ExecAuthTest() {
         cfg = new ExecConfig();
         p = new ExecAuthStore(cfg);
     }