Neo4j Extensions
================
Neo4j can be extended by writing custom code which can be invoked directly from Cypher,
as described in the developer manual at https://neo4j.com/docs/java-reference/4.0/extending-neo4j/
These extensions are user defined procedures, user defined functions or security plugins. They are written in Java
and compiled into jar files. They can be deployed to the database by dropping a JAR file into the $NEO4J_HOME/plugins
directory on each standalone or clustered server. The database must be re-started on each server to pick up new procedures.
Configuring Procedures
----------------------
There are two configuration settings in $NEO4J_HOME/conf/neoj4.conf that are relevant when deploying procedures
or user defined functions:
* dbms.security.procedures.unrestricted
* dbms.security.procedures.whitelist
These are described in more detail in the documentation at
https://neo4j.com/docs/operations-manual/4.0/security/securing-extensions/
Sandboxing
----------
Neo4j provides sandboxing to ensure that procedures do not inadvertently use insecure APIs. For example, when writing
custom code it is possible to access Neo4j APIs that are not publicly supported, and these internal APIs are subject
to change, without notice. Additionally, their use comes with the risk of performing insecure actions. The sandboxing
functionality limits the use of extensions to publicly supported APIs, which exclusively contain safe operations,
or contain security checks.
For example:
# Example sandboxing
dbms.security.procedures.unrestricted=my.extensions.example,my.procedures.*
White listing
-------------
White listing can be used to allow loading only a few extensions from a larger library.
The configuration setting dbms.security.procedures.whitelist is used to name certain procedures that should be
available from a library. It defines a comma-separated list of procedures that are to be loaded.
The list may contain both fully-qualified procedure names, and partial names with the wildcard *.
For example, to only load a subset of the APOC library of procedures:
# Example white listing
dbms.security.procedures.whitelist=apoc.coll.*,apoc.load.*
neo4j图数据库社区开源版4.0.7版本安装程序 （185个子文件） 
cypher-shell.bat 2KB neo4j-admin.bat 934B neo4j.bat 928B neo4j.cer 1KB neo4j.conf 16KB
prunsrv-amd64.exe 114KB prunsrv-i386.exe 95KB
cypher-shell.jar 29.29MB eclipse-collections-10.0.0.jar 9.76MB neo4j-browser-4.1.0.jar 7.57MB scala-library-2.12.7.jar 5.03MB bcprov-jdk15on-1.64.jar 4.55MB netty-all-4.1.48.Final.jar 3.97MB zstd-jni-1.4.3-1.jar 3.87MB scala-reflect-2.12.7.jar 3.45MB lucene-core-8.2.0.jar 3.07MB neo4j-cypher-interpreted-runtime-4.0.7.jar 2.3MB lucene-analyzers-common-8.2.0.jar 1.6MB neo4j-kernel-4.0.7.jar 1.59MB neo4j-cypher-planner-4.0.7.jar 1.49MB neo4j-ast-4.0-4.0.7.jar 1.48MB jna-5.4.0.jar 1.44MB jackson-databind-2.10.0.jar 1.34MB eclipse-collections-api-10.0.0.jar 1.3MB jersey-common-2.29.jar 1.1MB neo4j-cypher-4.0.7.jar 1.08MB jaxb-runtime-2.3.2.jar 990KB neo4j-cypher-logical-plans-4.0.7.jar 961KB jersey-server-2.29.jar 905KB neo4j-record-storage-engine-4.0.7.jar 875KB neo4j-expressions-4.0-4.0.7.jar 860KB caffeine-2.8.0.jar 859KB bcpkix-jdk15on-1.64.jar 857KB neo4j-codegen-4.0.7.jar 751KB javassist-3.22.0-CR2.jar 721KB jetty-server-9.4.17.v20190418.jar 632KB neo4j-cypher-runtime-util-4.0.7.jar 609KB commons-compress-1.19.jar 601KB neo4j-rewriting-4.0-4.0.7.jar 596KB commons-collections-3.2.2.jar 575KB jetty-util-9.4.17.v20190418.jar 514KB neo4j-consistency-check-4.0.7.jar 509KB commons-lang3-3.9.jar 492KB neo4j-cypher-ir-4.0.7.jar 445KB lucene-codecs-8.2.0.jar 444KB neo4j-util-4.0-4.0.7.jar 429KB shiro-core-1.5.2.jar 405KB lucene-queryparser-8.2.0.jar 372KB neo4j-values-4.0.7.jar 355KB commons-configuration-1.10.jar 354KB jackson-core-2.10.0.jar 340KB picocli-4.0.4.jar 338KB neo4j-bolt-4.0.7.jar 332KB neo4j-server-4.0.7.jar 330KB parboiled-scala_2.12-1.2.0.jar 317KB FastInfoset-1.2.16.jar 310KB commons-lang-2.6.jar 278KB neo4j-parser-4.0-4.0.7.jar 256KB jctools-core-2.1.2.jar 246KB commons-beanutils-1.9.4.jar 241KB neo4j-import-util-4.0.7.jar 236KB neo4j-common-4.0.7.jar 226KB neo4j-procedure-4.0.7.jar 222KB neo4j-index-4.0.7.jar 215KB jersey-client-2.29.jar 214KB commons-io-2.6.jar 210KB neo4j-io-4.0.7.jar 207KB neo4j-graphdb-api-4.0.7.jar 201KB commons-text-1.7.jar 200KB jetty-http-9.4.17.v20190418.jar 198KB neo4j-kernel-api-4.0.7.jar 192KB neo4j-front-end-4.0-4.0.7.jar 191KB parboiled-core-1.2.0.jar 189KB hk2-locator-2.5.0.jar 184KB hk2-api-2.5.0.jar 183KB neo4j-lucene-index-4.0.7.jar 173KB neo4j-configuration-4.0.7.jar 163KB jetty-io-9.4.17.v20190418.jar 153KB neo4j-graph-algo-4.0.7.jar 153KB jakarta.ws.rs-api-2.1.5.jar 137KB neo4j-storage-engine-api-4.0.7.jar 136KB neo4j-dbms-4.0.7.jar 135KB jetty-webapp-9.4.17.v20190418.jar 133KB javax.ws.rs-api-2.1.1.jar 124KB jaxb-api-2.3.0.jar 123KB jetty-servlet-9.4.17.v20190418.jar 118KB hk2-utils-2.5.0.jar 115KB neo4j-collections-4.0.7.jar 114KB jetty-security-9.4.17.v20190418.jar 114KB jakarta.xml.bind-api-2.3.2.jar 113KB neo4j-fulltext-index-4.0.7.jar 112KB neo4j-cypher-planner-spi-4.0.7.jar 111KB neo4j-data-collector-4.0.7.jar 108KB neo4j-4.0.7.jar 102KB neo4j-csv-4.0.7.jar 100KB javax.servlet-api-3.1.0.jar 94KB neo4j-id-generator-4.0.7.jar 93KB neo4j-logging-4.0.7.jar 93KB validation-api-2.0.1.Final.jar 91KB neo4j-schema-4.0.7.jar 89KB共 185 条
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