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{-, ToJSON-})
  61 import Data.Maybe (maybe)
  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)
  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.Prelude
  77 import Gargantext.Prelude.Crypto.Hash (hash)
  78 import qualified Data.Text                   as DT (pack, concat, take)
  79
  80 -- TODO : the import of Document constructor below does not work
  81 -- import Gargantext.Database.Types.Node (Document)
  82 --import Gargantext.Database.Types.Node (docExample, hyperdataDocument, HyperdataDocument(..)
  83 --                                  , hyperdataDocument_uniqId
  84 --                                  , hyperdataDocument_title
  85 --                                  , hyperdataDocument_abstract
  86 --                                  , hyperdataDocument_source
  87 --                                  , Node(..), node_typename
  88 --                                            , node_userId
  89 --                                            , node_parentId, node_name, node_hyperdata, hyperdataDocuments
  90 --                                  , NodeTypeId
  91 --                                  )
  92 {-| To Print result query
  93 import Data.ByteString.Internal (ByteString)
  94 import Database.PostgreSQL.Simple (formatQuery)
  95 -}
  96
  97 ---------------------------------------------------------------------------
  98 -- * Main Insert functions
  99
 100 -- | Insert Document main function
 101 -- UserId : user who is inserting the documents
 102 -- ParentId : folder ID which is parent of the inserted documents
 103 -- Administrator of the database has to create a uniq index as following SQL command:
 104 -- `create unique index on nodes (typename, parent_id, (hyperdata ->> 'uniqId'));`
 105 insertDb :: InsertDb a => UserId -> ParentId -> [a] -> Cmd err [ReturnId]
 106 insertDb u p = runPGSQuery queryInsert . Only . Values fields . map (insertDb' u p)
 107       where
 108         fields    = map (\t-> QualifiedIdentifier Nothing t) inputSqlTypes
 109
 110 class InsertDb a
 111   where
 112     insertDb' :: UserId -> ParentId -> a -> [Action]
 113
 114
 115 instance InsertDb HyperdataDocument
 116   where
 117     insertDb' u p h = [ toField $ nodeTypeId NodeDocument
 118                       , toField u
 119                       , toField p
 120                       , toField $ maybe "No Title" (DT.take 255)  (_hd_title h)
 121                       , toField $ _hd_publication_date h -- TODO USE UTCTime
 122                       , (toField . toJSON) h
 123                       ]
 124
 125 instance InsertDb HyperdataContact
 126   where
 127     insertDb' u p h = [ toField $ nodeTypeId NodeContact
 128                       , toField u
 129                       , toField p
 130                       , toField $ maybe "Contact" (DT.take 255) (Just "Name") -- (_hc_name h)
 131                       , toField $ jour 0 1 1 -- TODO put default date
 132                       , (toField . toJSON) h
 133                       ]
 134
 135 -- | Debug SQL function
 136 --
 137 -- to print rendered query (Debug purpose) use @formatQuery@ function.
 138 {-
 139 insertDocuments_Debug :: (Hyperdata a, ToJSON a, ToRow a, InsertDb [a])
 140                       => UserId -> ParentId -> [a] -> Cmd err ByteString
 141 insertDocuments_Debug uId pId hs = formatPGSQuery queryInsert (Only $ Values fields inputData)
 142   where
 143     fields    = map (\t-> QualifiedIdentifier Nothing t) inputSqlTypes
 144     inputData = insertDb' uId pId hs
 145 -}
 146
 147 -- | Input Tables: types of the tables
 148 inputSqlTypes :: [Text]
 149 inputSqlTypes = map DT.pack ["int4","int4","int4","text","date","jsonb"]
 150
 151 -- | SQL query to insert documents inside the database
 152 queryInsert :: Query
 153 queryInsert = [sql|
 154     WITH input_rows(typename,user_id,parent_id,name,date,hyperdata) AS (?)
 155     , ins AS (
 156        INSERT INTO nodes (typename,user_id,parent_id,name,date,hyperdata)
 157        SELECT * FROM input_rows
 158        ON CONFLICT ((hyperdata ->> 'uniqIdBdd')) DO NOTHING -- on unique index -- this does not return the ids
 159        -- ON CONFLICT ((hyperdata ->> 'uniqIdBdd')) DO UPDATE SET user_id=EXCLUDED.user_id  -- on unique index
 160        RETURNING id,hyperdata
 161        )
 162
 163     SELECT true AS source                     -- true for 'newly inserted'
 164          , id
 165          , hyperdata ->> 'uniqIdBdd'  as doi
 166     FROM   ins
 167     UNION  ALL
 168     SELECT false AS source                    -- false for 'not inserted'
 169          , c.id
 170          , hyperdata ->> 'uniqIdBdd' as doi
 171     FROM   input_rows
 172     JOIN   nodes c USING (hyperdata);         -- columns of unique index
 173            |]
 174
 175 ------------------------------------------------------------------------
 176 -- * Main Types used
 177 -- ** Return Types
 178
 179 -- | When documents are inserted
 180 -- ReturnType after insertion
 181 data ReturnId = ReturnId { reInserted :: Bool -- if the document is inserted (True: is new, False: is not new)
 182                          , reId       :: NodeId  -- always return the id of the document (even new or not new)
 183                                          --   this is the uniq id in the database
 184                          , reUniqId   :: Text -- Hash Id with concatenation of sha parameters
 185                          } deriving (Show, Generic)
 186
 187 instance FromRow ReturnId where
 188   fromRow = ReturnId <$> field <*> field <*> field
 189
 190 ---------------------------------------------------------------------------
 191 -- * Uniqueness of document definition
 192
 193 class AddUniqId a
 194   where
 195     addUniqId :: a -> a
 196
 197 instance AddUniqId HyperdataDocument
 198   where
 199     addUniqId = addUniqIdsDoc
 200       where
 201         addUniqIdsDoc :: HyperdataDocument -> HyperdataDocument
 202         addUniqIdsDoc doc = set hd_uniqIdBdd (Just shaBdd)
 203                           $ set hd_uniqId    (Just shaUni) doc
 204           where
 205             shaUni = hash $ DT.concat $ map ($ doc) shaParametersDoc
 206             shaBdd = hash $ DT.concat $ map ($ doc) ([(\d -> maybeText (_hd_bdd d))] <> shaParametersDoc)
 207
 208         shaParametersDoc :: [(HyperdataDocument -> Text)]
 209         shaParametersDoc = [ \d -> maybeText (_hd_title            d)
 210                            , \d -> maybeText (_hd_abstract         d)
 211                            , \d -> maybeText (_hd_source           d)
 212                            , \d -> maybeText (_hd_publication_date d)
 213                            ]
 214
 215     ---------------------------------------------------------------------------
 216 -- * Uniqueness of document definition
 217 -- TODO factorize with above (use the function below for tests)
 218
 219 instance AddUniqId HyperdataContact
 220   where
 221     addUniqId = addUniqIdsContact
 222
 223 addUniqIdsContact :: HyperdataContact -> HyperdataContact
 224 addUniqIdsContact hc = set (hc_uniqIdBdd) (Just shaBdd)
 225                      $ set (hc_uniqId   ) (Just shaUni) hc
 226   where
 227     shaUni = hash $ DT.concat $ map ($ hc) shaParametersContact
 228     shaBdd = hash $ DT.concat $ map ($ hc) ([\d -> maybeText (view hc_bdd d)] <> shaParametersContact)
 229
 230     -- | TODO add more shaparameters
 231     shaParametersContact :: [(HyperdataContact -> Text)]
 232     shaParametersContact = [ \d -> maybeText $ view (hc_who . _Just . cw_firstName                ) d
 233                            , \d -> maybeText $ view (hc_who . _Just . cw_lastName                 ) d
 234                            , \d -> maybeText $ view (hc_where . _head . cw_touch . _Just . ct_mail) d
 235                            ]
 236
 237 maybeText :: Maybe Text -> Text
 238 maybeText = maybe (DT.pack "") identity
 239
 240 ---------------------------------------------------------------------------