[GitHub] [couchdb] cfeltz34 opened a new issue, #4635: Bad redirection 301 from request on _design%2F with reverse proxy

["cfeltz34 (via GitHub)" <gi...@apache.org>]

cfeltz34 opened a new issue, #4635:
URL: https://github.com/apache/couchdb/issues/4635

   ## Description
   
   Bad redirection 301 from request on _design%2F with reverse proxy.
   
   ## Steps to Reproduce
   
   Use docker compose to create CouchDB and Traefik (reverse proxy) containers and configure CouchDB with a PathPrefix : 
   `      - "traefik.http.routers.couchdb.rule=Host(`mydomain.com`) && PathPrefix(`/couchdb`)"`
   
   Create database "example". 
   
   Execute request "https://webapihelper.groupe-isia.com/couchdb/example/_design%2Fexample"
   --> CouchDB server return redirection 301 to https://domain.com/example/_design/example
   
   ## Expected Behaviour
   
   --> CouchDB server return redirection 301 to https://domain.com/couchdb/example/_design/example
   
   ## Data
   
   Full example for docker-compose with this file : 
   ```
   version: '3.7'
   
   services:
     traefik:
       container_name: example.traefik
       image: traefik:v2.6.0
       command:
         - "--log.level=DEBUG"
         - "--api.insecure=true"
         - "--providers.docker=true"
         - "--providers.docker.exposedbydefault=false"
       ports:
         - "80:80"
         - "443:443"
         - "8080:8080"
       volumes:
         - "/var/run/docker.sock:/var/run/docker.sock:ro"
         - "./Traefik/traefik.toml:/etc/traefik/traefik.toml"
         - "./Traefik/configuration/:/configuration/"
         - "../../Certificates/:/certificates/"
       networks:
         - network
   
     couchdb:
       container_name: example.couchdb
       image: couchdb:3.3.1
       environment:
         - COUCHDB_USER=xxx
         - COUCHDB_PASSWORD=xxx
       volumes:
         - couchdb-data:/opt/couchdb/data
       labels:
         - "traefik.enable=true"
         - "traefik.http.services.couchdb.loadbalancer.server.port=5984"
         # - "traefik.http.routers.couchdb.rule=Host(`couchdb.mydomain.com`)"
         - "traefik.http.routers.couchdb.rule=Host(`mydomain.com`) && PathPrefix(`/couchdb`)"
         - "traefik.http.middlewares.couchdb.stripprefix.prefixes=/couchdb"
         - "traefik.http.middlewares.couchdb.stripprefix.forceSlash=false"
         - "traefik.http.routers.couchdb.middlewares=couchdb@docker"
         - "traefik.http.routers.couchdb.entrypoints=web-secure"
         - "traefik.http.routers.couchdb.tls=true"
       networks:
         - network
             
   volumes:  
     couchdb-data:
   
   networks:
     network:
   
   ```
   
   ## Your Environment
   
   {"couchdb":"Welcome","version":"3.3.1","git_sha":"1fd50b82a","uuid":"380d7087e65adca8a7336c699bc5c564","features":["access-ready","partitioned","pluggable-storage-engines","reshard","scheduler"],"vendor":{"name":"The Apache Software Foundation"}}
   
   * CouchDB version used: 3.3.1
   * Browser name and version: Chrome from Windows
   * Operating system and version: Debian Linux with docker and docker compose
   
   ## Additional Context
   
   I'm not sure, but in file "couch_httpd_db.erl" (on main branch) there are (line 517) : 
   ```
   db_req(
       #httpd{
           method = 'GET', mochi_req = MochiReq, path_parts = [DbName, <<"_design/", _/binary>> | _]
       } = Req,
       _Db
   ) ->
       **PathFront = "/" ++ couch_httpd:quote(binary_to_list(DbName)) ++ "/",**
       [_ | PathTail] = re:split(
           MochiReq:get(raw_path),
           "_design%2F",
           [{return, list}]
       ),
       couch_httpd:send_redirect(
           Req,
           PathFront ++ "_design/" ++
               mochiweb_util:join(PathTail, "_design%2F")
       );
   
   ```
   --> PathFront need to use the path prefix (may by add environment variable to set full url (like KC_HOSTNAME_URL for Keycloak).
   


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[GitHub] [couchdb] rnewson commented on issue #4635: Bad redirection 301 from request on _design%2F with reverse proxy

["rnewson (via GitHub)" <gi...@apache.org>]

rnewson commented on issue #4635:
URL: https://github.com/apache/couchdb/issues/4635#issuecomment-1618537625

   Not a bug.
   
   CouchDB expects to own the full url path and does not support a prefix. Replication will fail, etc.


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[GitHub] [couchdb] rnewson closed issue #4635: Bad redirection 301 from request on _design%2F with reverse proxy

["rnewson (via GitHub)" <gi...@apache.org>]

rnewson closed issue #4635: Bad redirection 301 from request on _design%2F with reverse proxy
URL: https://github.com/apache/couchdb/issues/4635


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