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1 | structure Support :> SUPPORT = |
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2 | struct |
3 | |
4 | open Util Sql Init |
5 | |
6 | datatype status = |
7 | NEW |
8 | | PENDING |
9 | | CLOSED |
10 | |
11 | type category = { id : int, grp : int, name : string, descr : string } |
12 | type issue = { id : int, usr : int, cat : int, title : string, priv : bool, status : status, stamp : C.timestamp } |
13 | type post = { id : int, usr : int, iss : int, body : string, stamp : C.timestamp } |
14 | type subscription = { usr : int, cat : int } |
15 | |
16 | |
17 | (* Categories *) |
18 | |
19 | fun mkCatRow [id, grp, name, descr] = |
20 | {id = C.intFromSql id, grp = C.intFromSql grp, name = C.stringFromSql name, |
21 | descr = C.stringFromSql descr} |
22 | | mkCatRow row = rowError ("category", row) |
23 | |
24 | fun lookupCategory id = |
25 | mkCatRow (C.oneRow (getDb ()) ($`SELECT id, grp, name, descr |
26 | FROM SupCategory |
27 | WHERE id = ^(C.intToSql id)`)) |
28 | |
29 | fun listCategories () = |
30 | C.map (getDb ()) mkCatRow ($`SELECT id, grp, name, descr |
31 | FROM SupCategory |
32 | ORDER BY name`) |
33 | |
34 | fun mkCatRow' (sub :: rest) = |
35 | (not (C.isNull sub), mkCatRow rest) |
36 | | mkCatRow' row = Init.rowError ("category'", row) |
37 | |
38 | fun listCategoriesWithSubscriptions usr = |
39 | C.map (getDb ()) mkCatRow' ($`SELECT cat, id, grp, name, descr |
40 | FROM SupCategory LEFT OUTER JOIN SupSubscription |
41 | ON (usr = ^(C.intToSql usr) AND cat = id) |
42 | ORDER BY name`) |
43 | |
44 | fun addCategory (grp, name, descr) = |
45 | let |
46 | val db = getDb () |
47 | val id = nextSeq (db, "SupCategorySeq") |
48 | in |
49 | C.dml db ($`INSERT INTO SupCategory (id, grp, name, descr) |
50 | VALUES (^(C.intToSql id), ^(C.intToSql grp), ^(C.stringToSql name), ^(C.stringToSql descr))`); |
51 | id |
52 | end |
53 | |
54 | fun modCategory (cat : category) = |
55 | let |
56 | val db = getDb () |
57 | in |
58 | ignore (C.dml db ($`UPDATE SupCategory SET |
59 | grp = ^(C.intToSql (#grp cat)), name = ^(C.stringToSql (#name cat)), |
60 | descr = ^(C.stringToSql (#descr cat)) |
61 | WHERE id = ^(C.intToSql (#id cat))`)) |
62 | end |
63 | |
64 | fun deleteCategory id = |
65 | ignore (C.dml (getDb ()) ($`DELETE FROM SupCategory WHERE id = ^(C.intToSql id)`)) |
66 | |
67 | |
68 | (* Issues *) |
69 | |
70 | val statusToSql = |
71 | fn NEW => "0" |
72 | | PENDING => "1" |
73 | | CLOSED => "2" |
74 | |
75 | fun statusFromSql v = |
76 | case C.intFromSql v of |
77 | 0 => NEW |
78 | | 1 => PENDING |
79 | | 2 => CLOSED |
80 | | _ => raise Fail "Bad support issue status" |
81 | |
82 | fun mkIssueRow [id, usr, cat, title, priv, status, stamp] = |
83 | {id = C.intFromSql id, usr = C.intFromSql usr, cat = C.intFromSql cat, |
84 | title = C.stringFromSql title, priv = C.boolFromSql priv, |
85 | status = statusFromSql status, stamp = C.timestampFromSql stamp} |
86 | | mkIssueRow row = rowError ("issue", row) |
87 | |
88 | fun lookupIssue id = |
89 | mkIssueRow (C.oneRow (getDb ()) ($`SELECT id, usr, cat, title, priv, status, stamp |
90 | FROM SupIssue |
91 | WHERE id = ^(C.intToSql id)`)) |
92 | |
93 | fun listIssues () = |
94 | C.map (getDb ()) mkIssueRow ($`SELECT id, usr, cat, title, priv, status, stamp |
95 | FROM SupIssue |
96 | ORDER BY stamp DESC`) |
97 | |
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98 | fun mkIssueRow' (name :: rest) = (C.stringFromSql name, mkIssueRow rest) |
99 | | mkIssueRow' r = Init.rowError ("issue'", r) |
100 | |
101 | fun listOpenIssues usr = |
102 | C.map (getDb ()) mkIssueRow' ($`SELECT WebUser.name, SupIssue.id, SupIssue.usr, SupIssue.cat, title, priv, status, stamp |
103 | FROM SupIssue JOIN SupCategory ON cat = SupCategory.id |
104 | JOIN WebUser ON WebUser.id = SupIssue.usr |
105 | WHERE status < 2 |
106 | AND (usr = ^(C.intToSql usr) |
107 | OR ((SELECT COUNT( * ) FROM SupSubscription |
108 | WHERE SupSubscription.usr = ^(C.intToSql usr) |
109 | AND SupSubscription.cat = SupIssue.cat) > 0 |
110 | AND (not priv OR (SELECT COUNT( * ) FROM Membership |
111 | WHERE Membership.usr = ^(C.intToSql usr) |
112 | AND Membership.grp = SupCategory.grp) > 0))) |
113 | ORDER BY stamp DESC`) |
114 | |
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115 | fun listCategoryIssues cat = |
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116 | C.map (getDb ()) mkIssueRow' ($`SELECT WebUser.name, SupIssue.id, usr, cat, title, priv, status, stamp |
117 | FROM SupIssue |
118 | JOIN WebUser ON WebUser.id = usr |
119 | WHERE cat = ^(C.intToSql cat) |
120 | ORDER BY stamp DESC`) |
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121 | |
122 | fun listOpenCategoryIssues (cat, usr) = |
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123 | C.map (getDb ()) mkIssueRow' ($`SELECT name, SupIssue.id, usr, cat, title, priv, status, stamp |
124 | FROM SupIssue |
125 | JOIN WebUser ON WebUser.id = usr |
126 | WHERE cat = ^(C.intToSql cat) |
127 | AND status < 2 |
128 | AND (NOT priv OR usr = ^(C.intToSql usr)) |
129 | ORDER BY stamp DESC`) |
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130 | |
131 | fun listOpenCategoryIssuesAdmin cat = |
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132 | C.map (getDb ()) mkIssueRow' ($`SELECT name, SupIssue.id, usr, cat, title, priv, status, stamp |
133 | FROM SupIssue |
134 | JOIN WebUser ON WebUser.id = usr |
135 | WHERE cat = ^(C.intToSql cat) |
136 | AND status < 2 |
137 | ORDER BY stamp DESC`) |
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138 | |
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139 | fun addIssue (usr, cat, title, priv, status) = |
140 | let |
141 | val db = getDb () |
142 | val id = nextSeq (db, "SupIssueSeq") |
143 | in |
144 | C.dml db ($`INSERT INTO SupIssue (id, usr, cat, title, priv, status, stamp) |
145 | VALUES (^(C.intToSql id), ^(C.intToSql usr), ^(C.intToSql cat), |
146 | ^(C.stringToSql title), ^(C.boolToSql priv), |
147 | ^(statusToSql status), CURRENT_TIMESTAMP)`); |
148 | id |
149 | end |
150 | |
151 | fun modIssue (iss : issue) = |
152 | let |
153 | val db = getDb () |
154 | in |
155 | ignore (C.dml db ($`UPDATE SupIssue SET |
156 | usr = ^(C.intToSql (#usr iss)), cat = ^(C.intToSql (#cat iss)), |
157 | title = ^(C.stringToSql (#title iss)), priv = ^(C.boolToSql (#priv iss)), |
158 | status = ^(statusToSql (#status iss)) |
159 | WHERE id = ^(C.intToSql (#id iss))`)) |
160 | end |
161 | |
162 | fun deleteIssue id = |
163 | ignore (C.dml (getDb ()) ($`DELETE FROM SupIssue WHERE id = ^(C.intToSql id)`)) |
164 | |
165 | |
166 | (* Posts *) |
167 | |
168 | fun mkPostRow [id, usr, iss, body, stamp] = |
169 | {id = C.intFromSql id, usr = C.intFromSql usr, iss = C.intFromSql iss, |
170 | body = C.stringFromSql body, stamp = C.timestampFromSql stamp} |
171 | | mkPostRow row = rowError ("post", row) |
172 | |
173 | fun lookupPost id = |
174 | mkPostRow (C.oneRow (getDb ()) ($`SELECT id, usr, iss, body, stamp |
175 | FROM SupPost |
176 | WHERE id = ^(C.intToSql id)`)) |
177 | |
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178 | fun mkPostRow' (name :: rest) = (C.stringFromSql name, mkPostRow rest) |
179 | | mkPostRow' row = Init.rowError ("post'", row) |
180 | |
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181 | fun listPosts iss = |
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182 | C.map (getDb ()) mkPostRow' ($`SELECT name, SupPost.id, usr, iss, body, SupPost.stamp |
183 | FROM SupPost JOIN WebUser ON usr = WebUser.id |
184 | WHERE iss = ^(C.intToSql iss) |
185 | ORDER BY stamp`) |
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186 | |
187 | fun addPost (usr, iss, body) = |
188 | let |
189 | val db = getDb () |
190 | val id = nextSeq (db, "SupPostSeq") |
191 | in |
192 | C.dml db ($`INSERT INTO SupPost (id, usr, iss, body, stamp) |
193 | VALUES (^(C.intToSql id), ^(C.intToSql usr), ^(C.intToSql iss), |
194 | ^(C.stringToSql body), CURRENT_TIMESTAMP)`); |
195 | id |
196 | end |
197 | |
198 | fun modPost (post : post) = |
199 | let |
200 | val db = getDb () |
201 | in |
202 | ignore (C.dml db ($`UPDATE SupPost SET |
203 | usr = ^(C.intToSql (#usr post)), iss = ^(C.intToSql (#iss post)), |
204 | body = ^(C.stringToSql (#body post)) |
205 | WHERE id = ^(C.intToSql (#id post))`)) |
206 | end |
207 | |
208 | fun deletePost id = |
209 | ignore (C.dml (getDb ()) ($`DELETE FROM SupPost WHERE id = ^(C.intToSql id)`)) |
210 | |
211 | |
212 | (* Subscriptions *) |
213 | |
214 | fun mkSubRow [usr, cat] = |
215 | {usr = C.intFromSql usr, cat = C.intFromSql cat} |
216 | | mkSubRow row = rowError ("subscription", row) |
217 | |
218 | fun subscribed {usr, cat} = |
219 | case C.oneRow (getDb ()) ($`SELECT COUNT( * ) FROM SupSubscription |
220 | WHERE usr = ^(C.intToSql usr) AND cat = ^(C.intToSql cat)`) of |
221 | [n] => not (C.isNull n) andalso C.intFromSql n > 0 |
222 | | r => Init.rowError ("subscribed", r) |
223 | |
224 | fun subscribe (sub as {usr, cat}) = |
225 | if subscribed sub then |
226 | () |
227 | else |
228 | ignore (C.dml (getDb ()) ($`INSERT INTO SupSubscription (usr, cat) |
229 | VALUES (^(C.intToSql usr), ^(C.intToSql cat))`)) |
230 | |
231 | fun unsubscribe {usr, cat} = |
232 | ignore (C.dml (getDb ()) ($`DELETE FROM SupSubscription |
233 | WHERE usr = ^(C.intToSql usr) AND cat = ^(C.intToSql cat)`)) |
234 | |
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235 | val okChars = [#" ", #"-", #".", #"!", #"?", #":", #";", #"'", #"\"", #"/"] |
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236 | |
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237 | fun validTitle s = CharVector.exists (fn ch => not (Char.isSpace ch)) s |
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238 | andalso CharVector.all (fn ch => Char.isAlphaNum ch orelse List.exists (fn ch' => ch = ch') okChars) s |
239 | |
240 | fun allowedToSee iss = |
241 | let |
242 | val iss = lookupIssue iss |
243 | val cat = lookupCategory (#cat iss) |
244 | in |
245 | not (#priv iss) orelse Group.inGroupNum (#grp cat) orelse (Init.getUserId () = #usr iss) |
246 | end |
247 | |
248 | fun allowedToEdit iss = |
249 | let |
250 | val iss = lookupIssue iss |
251 | val cat = lookupCategory (#cat iss) |
252 | in |
253 | Group.inGroupNum (#grp cat) orelse (Init.getUserId () = #usr iss) |
254 | end |
255 | |
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256 | fun writeRecipients (mail, iss : issue, cat : category, noName) = |
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257 | let |
258 | val query = |
259 | if #priv iss then |
260 | $`SELECT name |
261 | FROM WebUser JOIN Membership ON (usr = id AND grp = ^(C.intToSql (#grp cat)))` |
262 | else |
263 | $`SELECT name |
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264 | FROM WebUser JOIN SupSubscription ON (usr = id AND cat = ^(C.intToSql (#id cat))) |
265 | UNION SELECT name |
266 | FROM WebUser JOIN Membership ON (usr = id AND grp = ^(C.intToSql (#grp cat)))` |
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267 | |
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268 | fun doOne [name] = |
269 | let |
270 | val name = C.stringFromSql name |
271 | in |
272 | if name = noName then |
273 | () |
274 | else |
275 | (Mail.mwrite (mail, name); |
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276 | Mail.mwrite (mail, emailSuffix); |
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277 | Mail.mwrite (mail, ",")) |
278 | end |
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279 | in |
280 | Mail.mwrite (mail, "Bcc: "); |
281 | C.app (getDb ()) doOne query; |
282 | Mail.mwrite (mail, "\n") |
283 | end |
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284 | |
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285 | fun notify (prefix, f) iss = |
286 | let |
287 | val iss = lookupIssue iss |
288 | val cat = lookupCategory (#cat iss) |
289 | val user = Init.lookupUser (#usr iss) |
290 | |
291 | val mail = Mail.mopen () |
292 | in |
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293 | Mail.mwrite (mail, "From: Hcoop Support System <support"); |
294 | Mail.mwrite (mail, emailSuffix); |
295 | Mail.mwrite (mail, ">\nTo: "); |
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296 | Mail.mwrite (mail, #name user); |
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297 | Mail.mwrite (mail, emailSuffix); |
298 | Mail.mwrite (mail, "\n"); |
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299 | writeRecipients (mail, iss, cat, #name user); |
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300 | Mail.mwrite (mail, "Subject: "); |
301 | Mail.mwrite (mail, prefix); |
302 | Mail.mwrite (mail, #title iss); |
303 | Mail.mwrite (mail, "\n\nURL: "); |
304 | Mail.mwrite (mail, Init.urlPrefix); |
305 | Mail.mwrite (mail, "issue?cat="); |
306 | Mail.mwrite (mail, C.intToSql (#id cat)); |
307 | Mail.mwrite (mail, "&id="); |
308 | Mail.mwrite (mail, C.intToSql (#id iss)); |
309 | Mail.mwrite (mail, "\n\nSubmitted by: "); |
310 | Mail.mwrite (mail, #name user); |
311 | Mail.mwrite (mail, "\n Category: "); |
312 | Mail.mwrite (mail, #name cat); |
313 | Mail.mwrite (mail, "\n Issue: "); |
314 | Mail.mwrite (mail, #title iss); |
315 | Mail.mwrite (mail, "\n Private: "); |
316 | Mail.mwrite (mail, if #priv iss then "yes" else "no"); |
317 | Mail.mwrite (mail, "\n\n"); |
318 | |
319 | f (iss, cat, user, mail); |
320 | |
321 | OS.Process.isSuccess (Mail.mclose mail) |
322 | end |
323 | |
324 | val notifyCreation = notify ("[New] ", |
325 | fn (iss, cat, user, mail) => |
326 | (case listPosts (#id iss) of |
327 | [] => () |
328 | | [(_, post)] => Mail.mwrite (mail, #body post) |
329 | | _ => raise Fail "Too many posts for supposedly new support issue")) |
330 | |
331 | fun notifyPost pid = |
332 | let |
333 | val post = lookupPost pid |
334 | val poster = Init.lookupUser (#usr post) |
335 | in |
336 | notify ("[Post] ", |
337 | fn (iss, cat, user, mail) => |
338 | (Mail.mwrite (mail, "New post by "); |
339 | Mail.mwrite (mail, #name poster); |
340 | Mail.mwrite (mail, ":\n\n"); |
341 | Mail.mwrite (mail, #body post))) (#iss post) |
342 | end |
343 | |
344 | val statusToString = |
345 | fn NEW => "New" |
346 | | PENDING => "Pending" |
347 | | CLOSED => "Closed" |
348 | |
349 | fun notifyStatus (usr, oldStatus, newStatus, iss) = |
350 | let |
351 | val user = Init.lookupUser usr |
352 | in |
353 | notify ("[" ^ statusToString newStatus ^ "] ", |
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354 | fn (iss, cat, user', mail) => |
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355 | (Mail.mwrite (mail, #name user); |
356 | Mail.mwrite (mail, " changed status from "); |
357 | Mail.mwrite (mail, statusToString oldStatus); |
358 | Mail.mwrite (mail, " to "); |
359 | Mail.mwrite (mail, statusToString newStatus); |
360 | Mail.mwrite (mail, ".\n"))) iss |
361 | end |
362 | |
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363 | end |