3.2. Supported HTTP response codes

It is described here the way DataparkSearch processes different HTTP codes. Pseudo-language is used here for explanation.

• 200 OK

  1. If -m command line argument ("force reindex") specified, GOTO 4.

  2. Comparing new checksum with old one stored in database

  3. If checksum are the same, next_index_time=Now()+Period, GOTO 7

  4. Parsing the document, creating word list and adding in "url" table all of the found HREFs

  5. Comparing created word list with old one stored in "dict" table

  6. Doing UPDATEs, DELETEs or INSERTs in table "dict" if something is different in word lists.

  7. Done

• 304 Not Modified

  1. next_index_time=now()+Period

  2. Done

• 
  301 Moved Permanently
  302 Moved Temporarily
  303 See Other
  

  1. Deleting all words in table "dict" for current URL

  2. next_index_time=Now()+Period

  3. Adding an URL given in Location: header

  4. Done

• 
  300 Multiple Choices
  305 Use Proxy (proxy redirect)
  400 Bad Request
  401 Unauthorized
  402 Payment Required
  403 Forbidden
  404 Not found
  405 Method Not Allowed
  406 Not Acceptable
  407 Proxy Authentication Required
  408 Request Timeout
  409 Conflict
  410 Gone
  411 Length Required
  412 Precondition Failed
  413 Request Entity Too Large
  414 Request-URI Too Long
  415 Unsupported Media Type
  500 Internal Server Error
  501 Not Implemented
  502 Bad Gateway
  505 Protocol Version Not Supported
  

  1. Deleting all words in table "dict" for current URL

  2. next_index_time=Now()+Period

  3. Done

• 
  503 Service Unavailable
  504 Gateway Timeout
  

  1. next_index_time=Now()+Period

  2. Done