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1 | structure Init :> INIT = |
2 | struct |
3 | |
4 | open Util Sql |
5 | structure C = PgClient |
6 | |
7 | exception Access of string |
8 | |
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9 | val urlPrefix = "http://users.hcoop.net/portal/" |
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10 | val boardEmail = "board.fake@hcoop.net" |
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11 | |
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12 | fun conn () = C.conn "dbname='hcoop'" |
13 | val close = C.close |
14 | |
15 | type user = {id : int, name : string, rname : string, bal : int, joined : C.timestamp} |
16 | |
17 | val db = ref (NONE : C.conn option) |
18 | val user = ref (NONE : user option) |
19 | |
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20 | fun fromSql v = |
21 | if C.isNull v then |
22 | "NULL" |
23 | else |
24 | C.stringFromSql v |
25 | |
26 | fun rowError (tab, vs) = raise Fail ("Bad " ^ tab ^ "row: " ^ makeSet fromSql vs) |
27 | |
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28 | fun getDb () = valOf (!db) |
29 | |
30 | fun mkUserRow [id, name, rname, bal, joined] = |
31 | {id = C.intFromSql id, name = C.stringFromSql name, rname = C.stringFromSql rname, |
32 | bal = C.intFromSql bal, joined = C.timestampFromSql joined} |
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33 | | mkUserRow row = rowError ("user", row) |
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34 | |
35 | fun init () = |
36 | let |
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37 | val _ = Util.init () |
38 | |
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39 | val c = conn () |
40 | in |
41 | C.dml c "BEGIN"; |
42 | case Web.getCgi "REMOTE_USER" of |
43 | NONE => raise Fail "Not logged in" |
44 | | SOME name => |
45 | (case C.oneOrNoRows c ($`SELECT id, name, rname, bal, joined |
46 | FROM WebUser |
47 | WHERE name=^(C.stringToSql name)`) of |
48 | NONE => raise Fail "User not found" |
49 | | SOME r => user := SOME (mkUserRow r)); |
50 | db := SOME c |
51 | end |
52 | |
53 | fun done () = |
54 | let |
55 | val db = getDb () |
56 | in |
57 | C.dml db "COMMIT"; |
58 | close db |
59 | end |
60 | |
61 | fun getUser () = valOf (!user) |
62 | fun getUserId () = #id (getUser ()) |
63 | fun getUserName () = #name (getUser ()) |
64 | |
65 | fun lookupUser id = |
66 | mkUserRow (C.oneRow (getDb ()) ($`SELECT id, name, rname, bal, joined |
67 | FROM WebUser |
68 | WHERE id = ^(C.intToSql id)`)) |
69 | |
70 | fun listUsers () = |
71 | C.map (getDb ()) mkUserRow ($`SELECT id, name, rname, bal, joined |
72 | FROM WebUser |
73 | ORDER BY name`) |
74 | |
75 | fun nextSeq (db, seq) = |
76 | case C.oneRow db ($`SELECT nextval('^(seq)')`) of |
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77 | [id] => C.intFromSql id |
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78 | | _ => raise Fail "Bad next sequence val" |
79 | |
80 | fun addUser (name, rname, bal) = |
81 | let |
82 | val db = getDb () |
83 | val id = nextSeq (db, "WebUserSeq") |
84 | in |
85 | C.dml db ($`INSERT INTO WebUser (id, name, rname, bal, joined) |
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86 | VALUES (^(C.intToSql id), ^(C.stringToSql name), ^(C.stringToSql rname), ^(C.intToSql bal), CURRENT_TIMESTAMP)`); |
87 | id |
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88 | end |
89 | |
90 | fun modUser (user : user) = |
91 | let |
92 | val db = getDb () |
93 | in |
94 | ignore (C.dml db ($`UPDATE WebUser SET |
95 | name = ^(C.stringToSql (#name user)), rname = ^(C.stringToSql (#rname user)), |
96 | bal = ^(C.intToSql (#bal user)) |
97 | WHERE id = ^(C.intToSql (#id user))`)) |
98 | end |
99 | |
100 | fun deleteUser id = |
101 | C.dml (getDb ()) ($`DELETE FROM WebUser WHERE id = ^(C.intToSql id)`) |
102 | |
103 | fun validUsername name = |
104 | size name <= 10 |
105 | andalso CharVector.all Char.isAlpha name |
106 | |
107 | fun userNameToId name = |
108 | case C.oneOrNoRows (getDb ()) ($`SELECT id FROM WebUser WHERE name = ^(C.stringToSql name)`) of |
109 | SOME [id] => SOME (C.intFromSql id) |
110 | | _ => NONE |
111 | |
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112 | fun dateString () = |
113 | case C.oneRow (getDb ()) "SELECT CURRENT_DATE" of |
114 | [d] => C.stringFromSql d |
115 | | r => rowError ("dateString", r) |
116 | |
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117 | end |