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spring-cloud-config-server
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package cn.home1.cloud.config.server;

import static org.apache.commons.lang3.StringUtils.isBlank;
import static org.apache.commons.lang3.StringUtils.isNotBlank;
import static org.springframework.http.MediaType.APPLICATION_FORM_URLENCODED_VALUE;
import static org.springframework.web.bind.annotation.RequestMethod.GET;
import static org.springframework.web.bind.annotation.RequestMethod.POST;

import cn.home1.cloud.config.server.security.ConfigSecurity;
import cn.home1.cloud.config.server.ssh.DeployKey;

import lombok.SneakyThrows;
import lombok.extern.slf4j.Slf4j;

import org.eclipse.jgit.api.TransportConfigCallback;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.config.server.EnableConfigServer;
import org.springframework.cloud.config.server.config.ConfigServerHealthIndicator;
import org.springframework.cloud.config.server.config.TransportConfiguration.FileBasedSshTransportConfigCallback;
import org.springframework.cloud.config.server.config.TransportConfiguration.PropertiesBasedSshTransportConfigCallback;
import org.springframework.cloud.config.server.environment.EnvironmentRepository;
import org.springframework.cloud.config.server.ssh.SshUriProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.env.Environment;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;

import java.io.File;

/**
 * see: {@link org.springframework.cloud.config.server.environment.EnvironmentController}
 * see: {@link org.springframework.cloud.config.server.config.ConfigServerMvcConfiguration}
 */
@RestController
@SpringBootApplication
@Slf4j
public class ConfigServer {

    private static final DeployKey DEPLOY_KEY;

    static {
        // set default profiles
        final String profilesFromEnv = System.getenv("SPRING_PROFILES_ACTIVE");
        final String profilesFromProperty = System.getProperty("spring.profiles.active", "");
        if (isBlank(profilesFromEnv) && isBlank(profilesFromProperty)) {
            System.setProperty("spring.profiles.active", "port_nonsecure");
        }

        // set deploy key
        final String deployKeyFromEnv = System.getenv("SPRING_CLOUD_CONFIG_SERVER_GIT_DEPLOYKEY");
        final String deployKeyFromProperty = System.getProperty("spring.cloud.config.server.git.deploy-key", "");
        final String deployKeyLocation;
        if (isNotBlank(deployKeyFromEnv)) {
            deployKeyLocation = deployKeyFromEnv;
        } else if (isNotBlank(deployKeyFromProperty)) {
            deployKeyLocation = deployKeyFromProperty;
        } else {
            deployKeyLocation = System.getProperty("user.home") + "/.ssh/id_rsa";
        }

        final File deployKeyFile = new File(DeployKey.getPrivateKeyPath(deployKeyLocation));
        if (deployKeyFile.exists() && deployKeyFile.canRead()) {
            DEPLOY_KEY = new DeployKey(deployKeyLocation);
            DEPLOY_KEY.setUp(null);
        } else {
            DEPLOY_KEY = null;
        }
    }

    @Autowired
    private Environment environment;
    @Autowired
    private ConfigSecurity configSecurity;

    public static void main(final String... args) {
        SpringApplication.run(ConfigServer.class, args);
    }

    @ResponseBody
    @RequestMapping(path = {"/", "${spring.cloud.config.server.prefix:}/"}, method = GET)
    public String index() {
        return "Visit https://github.com/cloud-ready/spring-cloud-config-server for more info.";
    }

    @ResponseBody
    @RequestMapping(path = "${spring.cloud.config.server.prefix:}/deployKeyPublic", method = GET)
    public ResponseEntity getDeployKeyPublic() {
        final ResponseEntity responseEntity;
        if (ConfigServer.DEPLOY_KEY != null) {
            responseEntity = new ResponseEntity<>(ConfigServer.DEPLOY_KEY.getPublicKey(), HttpStatus.OK);
        } else {
            responseEntity = new ResponseEntity<>("", HttpStatus.NOT_FOUND);
        }
        return responseEntity;
    }

    @SneakyThrows
    @ResponseBody
    @RequestMapping(path = "${spring.cloud.config.server.prefix:}/encryptParentPassword", method = POST,
        consumes = APPLICATION_FORM_URLENCODED_VALUE)
    public String encryptParentPassword(
        @RequestParam("application") final String application,
        @RequestParam("parentApplication") final String parentApplication,
        @RequestParam("parentPassword") final String parentPassword
    ) {
        return this.configSecurity.encryptParentPassword(application, parentApplication, parentPassword);
    }

    @Configuration
    public static class HealthIndicatorConfiguration {

        @Bean
        @ConditionalOnProperty(value = "spring.cloud.config.server.health.enabled", matchIfMissing = true)
        public ConfigServerHealthIndicator configServerHealthIndicator(final EnvironmentRepository repository) {
            return new ConfigServerHealthIndicator(repository);
        }
    }

    @Configuration
    @EnableAutoConfiguration
    @EnableConfigServer
    //@EnableEurekaClient
    @EnableDiscoveryClient
    protected class ConfigServerConfiguration {

        /**
         * see: {@link org.springframework.cloud.config.server.config.TransportConfiguration}
         */
        @ConditionalOnMissingBean(TransportConfigCallback.class)
        @Bean
        public TransportConfigCallback propertiesBasedSshTransportCallback(final SshUriProperties sshUriProperties) {
            if (ConfigServer.DEPLOY_KEY != null) {
                DEPLOY_KEY.setUp(sshUriProperties);
                return new PropertiesBasedSshTransportConfigCallback(sshUriProperties);
            } else {
                return new FileBasedSshTransportConfigCallback(sshUriProperties);
            }
        }
    }
}