src/Gargantext/Database/Query/Table/Node/Document/Insert.hs

   1 {-|
   2 Module      : Gargantext.Database.Node.Document.Insert
   3 Description : Importing context of texts (documents)
   4 Copyright   : (c) CNRS, 2017-Present
   5 License     : AGPL + CECILL v3
   6 Maintainer  : team@gargantext.org
   7 Stability   : experimental
   8 Portability : POSIX
   9
  10 * Purpose of this module
  11
  12 Enabling "common goods" of text data and respecting privacy.
  13
  14 Gargantext shares as "common good" the links between context of texts
  15 and terms / words / ngrams.
  16
  17 Basically a context of text can be defined as a document (see 'Gargantext.Core.Text').
  18
  19 Issue to tackle in that module: each global document of Gargantext has
  20 to be unique, then shared, but how to respect privacy if needed ?
  21
  22
  23 * Methodology to get uniqueness and privacy by design
  24
  25 As a consequence, when importing/inserting a new document in Gargantext,
  26 a policy for the uniqueness of the inserted docuemnts has to be defined.
  27
  28 That is the purpose of this module which defines its main concepts.
  29
  30 Unique identifier in database is of a 3-tuple of 3 policies that
  31 together define uniqueness:
  32
  33 - Design policy: type of node is needed as TypenameId, that is a
  34 Document or Individual or something else;
  35
  36 - Privacy policy: with ParentId, parent becomes unique, then it enables
  37 users to get their own copy without sharing it with all the users of the
  38 database (in others words parent_id is necessary to preserve privacy for
  39 instance).
  40
  41 - Hash policy: this UniqId is a sha256 uniq id which is the result of
  42 the concatenation of the parameters defined by @shaParameters@.
  43
  44 > -- * Example
  45 > insertTest :: FromRow r => CorpusId -> [Node HyperdataDocument] -> IO [r]
  46 > insertTest :: IO [ReturnId]
  47 > insertTest = runCmdDev $ insertDocuments 1 452162 hyperdataDocuments
  48
  49 -}
  50 ------------------------------------------------------------------------
  51 {-# LANGUAGE QuasiQuotes          #-}
  52 {-# LANGUAGE TypeSynonymInstances #-}
  53 ------------------------------------------------------------------------
  54 module Gargantext.Database.Query.Table.Node.Document.Insert
  55   where
  56
  57 import Control.Lens (set, view)
  58 import Control.Lens.Cons
  59 import Control.Lens.Prism
  60 import Data.Aeson (toJSON, encode, ToJSON)
  61 import Data.Maybe (maybe, fromMaybe)
  62 import Data.Text (Text)
  63 -- import Data.ByteString (ByteString)
  64 import Data.Time.Segment (jour)
  65 import Database.PostgreSQL.Simple (FromRow, Query, Only(..))
  66 import Database.PostgreSQL.Simple.FromRow (fromRow, field)
  67 -- import Database.PostgreSQL.Simple.ToRow (toRow, ToRow)
  68 import Database.PostgreSQL.Simple.SqlQQ
  69 import Database.PostgreSQL.Simple.ToField (toField, Action{-, ToField-})
  70 import Database.PostgreSQL.Simple.Types (Values(..), QualifiedIdentifier(..))
  71 import GHC.Generics (Generic)
  72 import Gargantext.Database.Admin.Config (nodeTypeId)
  73 import Gargantext.Database.Admin.Types.Hyperdata
  74 import Gargantext.Database.Admin.Types.Node
  75 import Gargantext.Database.Prelude (Cmd, runPGSQuery{-, formatPGSQuery-})
  76 import Gargantext.Database.Schema.Node (NodePoly(..))
  77 import Gargantext.Prelude
  78 import Gargantext.Prelude.Crypto.Hash (hash)
  79 import qualified Data.Text as DT (pack, concat, take)
  80
  81 {-| To Print result query
  82 import Data.ByteString.Internal (ByteString)
  83 import Database.PostgreSQL.Simple (formatQuery)
  84 -}
  85
  86 ---------------------------------------------------------------------------
  87 -- * Main Insert functions
  88
  89 -- | Insert Document main function
  90 -- UserId : user who is inserting the documents
  91 -- ParentId : folder ID which is parent of the inserted documents
  92 -- Administrator of the database has to create a uniq index as following SQL command:
  93 -- `create unique index on nodes (typename, parent_id, (hyperdata ->> 'uniqId'));`
  94 insertDb :: InsertDb a => UserId -> ParentId -> [a] -> Cmd err [ReturnId]
  95 insertDb u p = runPGSQuery queryInsert . Only . Values fields . map (insertDb' u p)
  96       where
  97         fields    = map (\t-> QualifiedIdentifier Nothing t) inputSqlTypes
  98
  99 class InsertDb a
 100   where
 101     insertDb' :: UserId -> ParentId -> a -> [Action]
 102
 103
 104 instance InsertDb HyperdataDocument
 105   where
 106     insertDb' u p h = [ toField ("" :: Text)
 107                       , toField $ nodeTypeId NodeDocument
 108                       , toField u
 109                       , toField p
 110                       , toField $ maybe "No Title" (DT.take 255)  (_hd_title h)
 111                       , toField $ _hd_publication_date h -- TODO USE UTCTime
 112                       , (toField . toJSON) h
 113                       ]
 114
 115 instance InsertDb HyperdataContact
 116   where
 117     insertDb' u p h = [ toField ("" :: Text)
 118                       , toField $ nodeTypeId NodeContact
 119                       , toField u
 120                       , toField p
 121                       , toField $ maybe "Contact" (DT.take 255) (Just "Name") -- (_hc_name h)
 122                       , toField $ jour 0 1 1 -- TODO put default date
 123                       , (toField . toJSON) h
 124                       ]
 125
 126 instance ToJSON a => InsertDb (Node a)
 127   where
 128     insertDb' _u _p (Node _nid hashId t u p n d h) = [ toField hashId
 129                                                      , toField t
 130                                                      , toField u
 131                                                      , toField p
 132                                                      , toField n
 133                                                      , toField d
 134                                                      , (toField . toJSON) h
 135                                                      ]
 136
 137 -- | Debug SQL function
 138 --
 139 -- to print rendered query (Debug purpose) use @formatQuery@ function.
 140 {-
 141 insertDocuments_Debug :: (Hyperdata a, ToJSON a, ToRow a, InsertDb [a])
 142                       => UserId -> ParentId -> [a] -> Cmd err ByteString
 143 insertDocuments_Debug uId pId hs = formatPGSQuery queryInsert (Only $ Values fields inputData)
 144   where
 145     fields    = map (\t-> QualifiedIdentifier Nothing t) inputSqlTypes
 146     inputData = insertDb' uId pId hs
 147 -}
 148
 149 -- | Input Tables: types of the tables
 150 inputSqlTypes :: [Text]
 151 inputSqlTypes = map DT.pack ["text", "int4","int4","int4","text","date","jsonb"]
 152
 153 -- | SQL query to insert documents inside the database
 154 queryInsert :: Query
 155 queryInsert = [sql|
 156     WITH input_rows(hash_id,typename,user_id,parent_id,name,date,hyperdata) AS (?)
 157     , ins AS (
 158        INSERT INTO nodes (hash_id, typename,user_id,parent_id,name,date,hyperdata)
 159        SELECT * FROM input_rows
 160        ON CONFLICT (hash_id) DO NOTHING -- on unique index -- this does not return the ids
 161        RETURNING id,hash_id
 162        )
 163
 164     SELECT true AS source                     -- true for 'newly inserted'
 165          , id
 166          , hash_id
 167     FROM   ins
 168     UNION  ALL
 169     SELECT false AS source                    -- false for 'not inserted'
 170          , n.id
 171          , hash_id
 172     FROM   input_rows
 173     JOIN   nodes n USING (hash_id);         -- columns of unique index
 174            |]
 175
 176 ------------------------------------------------------------------------
 177 -- * Main Types used
 178 -- ** Return Types
 179
 180 -- | When documents are inserted
 181 -- ReturnType after insertion
 182 data ReturnId = ReturnId { reInserted :: Bool -- if the document is inserted (True: is new, False: is not new)
 183                          , reId       :: NodeId  -- always return the id of the document (even new or not new)
 184                                          --   this is the uniq id in the database
 185                          , reUniqId   :: Text -- Hash Id with concatenation of sha parameters
 186                          } deriving (Show, Generic)
 187
 188 instance FromRow ReturnId where
 189   fromRow = ReturnId <$> field <*> field <*> field
 190
 191 ---------------------------------------------------------------------------
 192 -- * Uniqueness of document definition
 193
 194 class AddUniqId a
 195   where
 196     addUniqId :: a -> a
 197
 198 instance AddUniqId HyperdataDocument
 199   where
 200     addUniqId = addUniqIdsDoc
 201       where
 202         addUniqIdsDoc :: HyperdataDocument -> HyperdataDocument
 203         addUniqIdsDoc doc = set hd_uniqIdBdd (Just shaBdd)
 204                           $ set hd_uniqId    (Just shaUni) doc
 205           where
 206             shaUni = hash $ DT.concat $ map ($ doc) shaParametersDoc
 207             shaBdd = hash $ DT.concat $ map ($ doc) ([(\d -> maybeText (_hd_bdd d))] <> shaParametersDoc)
 208
 209         shaParametersDoc :: [(HyperdataDocument -> Text)]
 210         shaParametersDoc = [ \d -> maybeText (_hd_title            d)
 211                            , \d -> maybeText (_hd_abstract         d)
 212                            , \d -> maybeText (_hd_source           d)
 213                            , \d -> maybeText (_hd_publication_date d)
 214                            ]
 215 -- TODO put this elsewhere (fix bin/gargantext-init/Main.hs too)
 216 secret :: Text
 217 secret = "Database secret to change"
 218
 219
 220 instance (AddUniqId a, ToJSON a) => AddUniqId (Node a)
 221   where
 222     addUniqId (Node nid _ t u p n d h) = Node nid hashId t u p n d h
 223                               where
 224                                 hashId = Just $ "\\x" <> (hash $ DT.concat params)
 225                                 params = [ secret
 226                                          , cs $ show $ nodeTypeId NodeDocument
 227                                          , n
 228                                          , cs $ show p
 229                                          , cs $ encode h
 230                                          ]
 231     {-
 232     addUniqId n@(Node nid _ t u p n d h)  =
 233       case n of
 234         Node HyperdataDocument -> Node nid hashId t u p n d h
 235                               where
 236                                 hashId = "\\x" <> (hash $ DT.concat params)
 237                                 params = [ secret
 238                                          , cs $ show $ nodeTypeId NodeDocument
 239                                          , n
 240                                          , cs $ show p
 241                                          , cs $ encode h
 242                                          ]
 243        _ -> undefined
 244 -}
 245
 246     ---------------------------------------------------------------------------
 247 -- * Uniqueness of document definition
 248 -- TODO factorize with above (use the function below for tests)
 249
 250 instance AddUniqId HyperdataContact
 251   where
 252     addUniqId = addUniqIdsContact
 253
 254 addUniqIdsContact :: HyperdataContact -> HyperdataContact
 255 addUniqIdsContact hc = set (hc_uniqIdBdd) (Just shaBdd)
 256                      $ set (hc_uniqId   ) (Just shaUni) hc
 257   where
 258     shaUni = hash $ DT.concat $ map ($ hc) shaParametersContact
 259     shaBdd = hash $ DT.concat $ map ($ hc) ([\d -> maybeText (view hc_bdd d)] <> shaParametersContact)
 260
 261     -- | TODO add more shaparameters
 262     shaParametersContact :: [(HyperdataContact -> Text)]
 263     shaParametersContact = [ \d -> maybeText $ view (hc_who   . _Just . cw_firstName              ) d
 264                            , \d -> maybeText $ view (hc_who   . _Just . cw_lastName               ) d
 265                            , \d -> maybeText $ view (hc_where . _head . cw_touch . _Just . ct_mail) d
 266                            ]
 267
 268 maybeText :: Maybe Text -> Text
 269 maybeText = maybe (DT.pack "") identity
 270
 271 ---------------------------------------------------------------------------
 272 class ToNode a
 273   where
 274     -- TODO Maybe NodeId
 275     toNode :: UserId -> ParentId -> a -> Node a
 276
 277 instance ToNode HyperdataDocument where
 278   toNode u p h = Node 0 Nothing (nodeTypeId NodeDocument) u (Just p) n date h
 279     where
 280       n    = maybe "No Title" (DT.take 255) (_hd_title h)
 281       date  = jour y m d
 282       y = maybe 0 fromIntegral $ _hd_publication_year  h
 283       m = fromMaybe 1 $ _hd_publication_month h
 284       d = fromMaybe 1 $ _hd_publication_day   h
 285
 286 -- TODO
 287 instance ToNode HyperdataContact where
 288   toNode = undefined
 289
 290
 291