diff --git a/build.gradle b/build.gradle
index 97445b3..4f6f64e 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,8 +1,19 @@
 plugins {
     id 'java'
     id 'java-library'
+    id 'maven-publish'
+    id 'signing'
+    id 'com.github.johnrengelman.shadow' version '4.0.2'
 }
 
+shadowJar {
+    classifier = "jar"
+    dependencies {
+        include(dependency(fileTree(dir: 'lib', include: '*.jar')))
+//        exclude(dependency('com.google.code.gson:gson:2.8.6'))
+//        relocate 'com.google.code.gson', 'irs.com.google.code.gson'
+    }
+}
 sourceSets {
     main {
         java {
@@ -24,9 +35,9 @@ sourceSets {
 sourceCompatibility = 1.8
 
 dependencies {
-    api project(":gmhelper")
+    api 'org.bdware.bdcontract:gmhelper:0.2.0'
     api 'berkeleydb:je:3.2.76'
- //   api 'com.fifesoft:rsyntaxtextarea:3.1.3'
+    //   api 'com.fifesoft:rsyntaxtextarea:3.1.3'
     api 'commons-io:commons-io:2.11.0'
     api 'io.netty:netty-all:4.1.72.Final'
     api 'org.antlr:antlr4:4.9.2'
@@ -36,11 +47,12 @@ dependencies {
     //api 'org.apache.velocity:velocity-engine-core:2.3'
     api 'org.rocksdb:rocksdbjni:6.22.1'
 
-    api fileTree(dir: 'lib', include: '*.jar')
+    // api fileTree(dir: 'lib', include: '*.jar')
 
     testImplementation 'junit:junit:4.13.2'
 }
-
+group = "org.bdware.sc"
+version = "1.5.6"
 tasks.processResources.setDuplicatesStrategy(DuplicatesStrategy.INCLUDE)
 
 task copyLibs(type: Copy) {
@@ -53,3 +65,82 @@ task copyJar(type: Copy) {
     into "./build/output/"
     rename { String fileName -> "yjs.jar" }
 }
+//task classJar(type: Jar, dependsOn: classes) {
+//    classifier = "jar"
+//}
+task sourceJar(type: Jar, dependsOn: classes) {
+    archiveClassifier = "sources"
+    classifier = "sources"
+    from sourceSets.main.allSource
+}
+tasks.withType(Javadoc) {
+    options.addStringOption('Xdoclint:none', '-quiet')
+}
+
+task javadocJar(type: Jar, dependsOn: javadoc) {
+    archiveClassifier = 'javadoc'
+    classifier = "javadoc"
+    exclude {
+        details -> details.file.getAbsolutePath().contains("/gm/")
+    }
+    from javadoc.destinationDir
+}
+
+
+publishing {
+    publications {
+        mavenJava(MavenPublication) {
+            groupId project.group
+            artifactId "common"
+            version "${version}"
+            from components.java
+            artifact sourceJar
+            artifact javadocJar
+            artifact shadowJar
+            pom {
+                name = "bdware-common"
+                description = "common"
+                url = "https://gitee.com/BDWare/common"
+                licenses {
+                    license {
+                        name = "Mulan PSL v2"
+                        url = "http://license.coscl.org.cn/MulanPSL2"
+                    }
+                }
+                developers {
+                    developer {
+                        id = "dataware"
+                        email = "caihq@pku.edu.cn"
+                    }
+                }
+                scm {
+                    connection = "scm:git:https://gitee.com/BDWare/common.git"
+                    developerConnection = "scm:git:https://gitee.com/BDWare/common.git"
+                    url = "https://gitee.com/BDWare/common"
+                }
+            }
+
+        }
+    }
+    repositories {
+        maven {
+            name 'bdwareSnapshotRepository'
+            url 'https://oss.sonatype.org/content/repositories/snapshots'
+            credentials {
+                username = "${NEXUS_USERNAME}"
+                password = "${NEXUS_PASSWORD}"
+            }
+        }
+        maven {
+            name 'bdwareRepository'
+            url 'https://oss.sonatype.org/service/local/staging/deploy/maven2'
+            credentials {
+                username = "${NEXUS_USERNAME}"
+                password = "${NEXUS_PASSWORD}"
+            }
+        }
+    }
+}
+signing {
+    sign publishing.publications.mavenJava
+}
\ No newline at end of file
diff --git a/src/main/base/org/bdware/sc/node/Permission.java b/src/main/base/org/bdware/sc/node/Permission.java
index 2e59e4e..34a34c2 100644
--- a/src/main/base/org/bdware/sc/node/Permission.java
+++ b/src/main/base/org/bdware/sc/node/Permission.java
@@ -16,6 +16,7 @@ public enum Permission {
     Ledger,
     CM,
     DOIP,
+    IRP,
     Async;
 
     public static Permission parse(String str) {