core.rs 41.2 KB
Newer Older
1
2
use time;

Robert Czechowski's avatar
Robert Czechowski committed
3
use db_conn::MedalConnection;
4
use db_objects::OptionSession;
5
use db_objects::SessionUser;
6
use db_objects::{Grade, Group, Participation, Submission, Taskgroup};
7
8
9
use helpers;
use oauth_provider::OauthProvider;
use webfw_iron::{json_val, to_json};
10

11
12
#[derive(Serialize, Deserialize)]
pub struct SubTaskInfo {
13
    pub id: i32,
14
    pub linktext: String,
15
16
    pub active: bool,
    pub greyout: bool,
17
18
19
20
21
22
23
24
}

#[derive(Serialize, Deserialize)]
pub struct TaskInfo {
    pub name: String,
    pub subtasks: Vec<SubTaskInfo>,
}

Robert Czechowski's avatar
Robert Czechowski committed
25
26
#[derive(Serialize, Deserialize)]
pub struct ContestInfo {
27
    pub id: i32,
Robert Czechowski's avatar
Robert Czechowski committed
28
29
30
    pub location: String,
    pub filename: String,
    pub name: String,
31
    pub duration: i32,
Robert Czechowski's avatar
Robert Czechowski committed
32
    pub public: bool,
33
    pub tasks: Vec<TaskInfo>,
Robert Czechowski's avatar
Robert Czechowski committed
34
35
}

36
37
#[derive(Clone)]
pub enum MedalError {
38
39
    NotLoggedIn,
    AccessDenied,
40
41
42
    CsrfCheckFailed,
    SessionTimeout,
    DatabaseError,
43
    PasswordHashingError,
44
    UnmatchedPasswords,
45
}
46

47
48
49
50
type MedalValue = (String, json_val::Map<String, json_val::Value>);
type MedalResult<T> = Result<T, MedalError>;
type MedalValueResult = MedalResult<MedalValue>;

51
52
53
54
55
56
57
58
59
60
61
62
fn fill_user_data(session: &SessionUser, data: &mut json_val::Map<String, serde_json::Value>) {
    if session.is_logged_in() {
        data.insert("logged_in".to_string(), to_json(&true));
        data.insert("username".to_string(), to_json(&session.username));
        data.insert("firstname".to_string(), to_json(&session.firstname));
        data.insert("lastname".to_string(), to_json(&session.lastname));
        data.insert("teacher".to_string(), to_json(&session.is_teacher));
        data.insert("csrf_token".to_string(), to_json(&session.csrf_token));
    }
    data.insert("parent".to_string(), to_json(&"base"));
}

Robert Czechowski's avatar
Robert Czechowski committed
63
pub fn index<T: MedalConnection>(conn: &T, session_token: Option<String>,
64
                                 (self_url, oauth_providers): (Option<String>, Option<Vec<OauthProvider>>))
Robert Czechowski's avatar
Robert Czechowski committed
65
66
                                 -> (String, json_val::Map<String, json_val::Value>)
{
67
68
69
70
71
72
    let mut data = json_val::Map::new();

    //let mut contests = Vec::new();

    if let Some(token) = session_token {
        if let Some(session) = conn.get_session(&token) {
73
            fill_user_data(&session, &mut data);
74
75
76
        }
    }

77
    let mut oauth_links: Vec<(String, String, String)> = Vec::new();
78
79
80
81
82
83
84
85
    if let Some(oauth_providers) = oauth_providers {
        for oauth_provider in oauth_providers {
            oauth_links.push((oauth_provider.provider_id.to_owned(),
                              oauth_provider.login_link_text.to_owned(),
                              oauth_provider.url.to_owned()));
        }
    }

86
    data.insert("self_url".to_string(), to_json(&self_url));
87
    data.insert("oauth_links".to_string(), to_json(&oauth_links));
88

89
    data.insert("parent".to_string(), to_json(&"base"));
90
91
92
    ("index".to_owned(), data)
}

93
94
pub fn status<T: MedalConnection>(conn: &T) -> String { conn.get_debug_information() }

95
96
97
98
99
100
101
pub fn debug<T: MedalConnection>(conn: &T, session_token: Option<String>)
                                 -> (String, json_val::Map<String, json_val::Value>) {
    let mut data = json_val::Map::new();

    if let Some(token) = session_token {
        if let Some(session) = conn.get_session(&token) {
            data.insert("known_session".to_string(), to_json(&true));
102
            data.insert("session_id".to_string(), to_json(&session.id));
103
104
105
106
107
108
109
110
111
112
113
114
115
            data.insert("now_timestamp".to_string(), to_json(&time::get_time().sec));
            if let Some(last_activity) = session.last_activity {
                data.insert("session_timestamp".to_string(), to_json(&last_activity.sec));
                data.insert("timediff".to_string(), to_json(&(time::get_time() - last_activity).num_seconds()));
            }
            if session.is_alive() {
                data.insert("alive_session".to_string(), to_json(&true));
                if session.is_logged_in() {
                    data.insert("logged_in".to_string(), to_json(&true));
                    data.insert("username".to_string(), to_json(&session.username));
                    data.insert("firstname".to_string(), to_json(&session.firstname));
                    data.insert("lastname".to_string(), to_json(&session.lastname));
                    data.insert("teacher".to_string(), to_json(&session.is_teacher));
116
117
                    data.insert("oauth_provider".to_string(), to_json(&session.oauth_provider));
                    data.insert("oauth_id".to_string(), to_json(&session.oauth_foreign_id));
118
119
                    data.insert("logincode".to_string(), to_json(&session.logincode));
                    data.insert("managed_by".to_string(), to_json(&session.managed_by));
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
                }
            }
        }
        data.insert("session".to_string(), to_json(&token));
    } else {
        data.insert("session".to_string(), to_json(&"No session token given"));
    }

    ("debug".to_owned(), data)
}

pub fn debug_create_session<T: MedalConnection>(conn: &T, session_token: Option<String>) {
    if let Some(token) = session_token {
        conn.get_session_or_new(&token);
    }
}

137
138
139
140
#[derive(PartialEq, Eq)]
pub enum ContestVisibility {
    All,
    Open,
141
    Current,
142
143
}

144
145
146
147
148
pub fn show_contests<T: MedalConnection>(conn: &T, session_token: &str,
                                         (self_url, oauth_providers): (Option<String>, Option<Vec<OauthProvider>>),
                                         visibility: ContestVisibility)
                                         -> MedalValue
{
Robert Czechowski's avatar
Robert Czechowski committed
149
150
    let mut data = json_val::Map::new();

151
    let session = conn.get_session_or_new(&session_token);
152
    fill_user_data(&session, &mut data);
153

154
155
156
157
    if session.is_logged_in() {
        data.insert("can_start".to_string(), to_json(&true));
    }

158
159
160
161
162
163
164
165
166
167
168
169
    let mut oauth_links: Vec<(String, String, String)> = Vec::new();
    if let Some(oauth_providers) = oauth_providers {
        for oauth_provider in oauth_providers {
            oauth_links.push((oauth_provider.provider_id.to_owned(),
                              oauth_provider.login_link_text.to_owned(),
                              oauth_provider.url.to_owned()));
        }
    }

    data.insert("self_url".to_string(), to_json(&self_url));
    data.insert("oauth_links".to_string(), to_json(&oauth_links));

Robert Czechowski's avatar
Robert Czechowski committed
170
171
172
173
174
175
176
177
178
    let v: Vec<ContestInfo> = conn.get_contest_list()
                                  .iter()
                                  .map(|c| ContestInfo { id: c.id.unwrap(),
                                                         location: c.location.clone(),
                                                         filename: c.filename.clone(),
                                                         name: c.name.clone(),
                                                         duration: c.duration,
                                                         public: c.public,
                                                         tasks: Vec::new() })
179
                                  .filter(|ci| ci.public)
180
181
                                  .filter(|ci| ci.duration == 0 || visibility != ContestVisibility::Open)
                                  .filter(|ci| ci.duration != 0 || visibility != ContestVisibility::Current)
Robert Czechowski's avatar
Robert Czechowski committed
182
                                  .collect();
Robert Czechowski's avatar
Robert Czechowski committed
183
    data.insert("contest".to_string(), to_json(&v));
184
185
    data.insert("contestlist_header".to_string(),
                to_json(&match visibility {
186
                            ContestVisibility::Open => "Trainingsaufgaben",
187
188
189
                            ContestVisibility::Current => "Aktuelle Wettbewerbe",
                            ContestVisibility::All => "Alle Wettbewerbe",
                        }));
Robert Czechowski's avatar
Robert Czechowski committed
190
191
192
193

    ("contests".to_owned(), data)
}

194
fn generate_subtaskstars(tg: &Taskgroup, grade: &Grade, ast: Option<i32>) -> Vec<SubTaskInfo> {
195
196
    let mut subtaskinfos = Vec::new();
    let mut not_print_yet = true;
197
    for st in &tg.tasks {
198
199
200
201
202
203
        let mut blackstars: usize = 0;
        if not_print_yet && st.stars >= grade.grade.unwrap_or(0) {
            blackstars = grade.grade.unwrap_or(0) as usize;
            not_print_yet = false;
        }

204
205
206
207
208
209
        let greyout = not_print_yet && st.stars < grade.grade.unwrap_or(0);
        let active = ast.is_some() && st.id == ast;
        let linktext = format!("{}{}",
                               str::repeat("★", blackstars as usize),
                               str::repeat("☆", st.stars as usize - blackstars as usize));
        let si = SubTaskInfo { id: st.id.unwrap(), linktext: linktext, active, greyout };
210
211
212
213
214
215

        subtaskinfos.push(si);
    }
    subtaskinfos
}

216
217
pub fn show_contest<T: MedalConnection>(conn: &T, contest_id: i32, session_token: &str, query_string: Option<String>)
                                        -> MedalValueResult {
218
219
    let session = conn.get_session_or_new(&session_token);

220
    let c = conn.get_contest_by_id_complete(contest_id);
221
    let grades = conn.get_contest_user_grades(&session_token, contest_id);
222

223
224
    let mut totalgrade = 0;
    let mut max_totalgrade = 0;
225

226
    let mut tasks = Vec::new();
227
    for (taskgroup, grade) in c.taskgroups.into_iter().zip(grades) {
228
        let subtaskstars = generate_subtaskstars(&taskgroup, &grade, None);
229
        let ti = TaskInfo { name: taskgroup.name, subtasks: subtaskstars };
230
        tasks.push(ti);
231

232
233
        totalgrade += grade.grade.unwrap_or(0);
        max_totalgrade += taskgroup.tasks.iter().map(|x| x.stars).max().unwrap_or(0);
234
    }
235

Robert Czechowski's avatar
Robert Czechowski committed
236
237
238
239
240
241
242
    let ci = ContestInfo { id: c.id.unwrap(),
                           location: c.location.clone(),
                           filename: c.filename.clone(),
                           name: c.name.clone(),
                           duration: c.duration,
                           public: c.public,
                           tasks: tasks };
Robert Czechowski's avatar
Robert Czechowski committed
243
244
245
246

    let mut data = json_val::Map::new();
    data.insert("contest".to_string(), to_json(&ci));

247
    data.insert("logged_in".to_string(), to_json(&false)); // TODO: cant we just drop these two?
248
    data.insert("can_start".to_string(), to_json(&false));
249
250
251
252
253
254
255
    if session.is_logged_in() {
        data.insert("logged_in".to_string(), to_json(&true));
        data.insert("username".to_string(), to_json(&session.username));
        data.insert("firstname".to_string(), to_json(&session.firstname));
        data.insert("lastname".to_string(), to_json(&session.lastname));
        data.insert("teacher".to_string(), to_json(&session.is_teacher));
        data.insert("csrf_token".to_string(), to_json(&session.csrf_token));
256
    }
257
    if c.duration == 0 || session.is_logged_in() {
258
        data.insert("can_start".to_string(), to_json(&true));
259
260
261
262
263
264
265
266
267
268
269

        if let Some(start_date) = c.start {
            if time::get_time() < start_date {
                data.insert("can_start".to_string(), to_json(&false));
            }
        }
        if let Some(end_date) = c.end {
            if time::get_time() > end_date {
                data.insert("can_start".to_string(), to_json(&false));
            }
        }
270
271
272
273
274
275
276
277
278
279
280
281

        let student_grade = session.grade % 100 - if session.grade / 100 == 1 { 1 } else { 0 };

        if c.min_grade.map(|ming| student_grade < ming).unwrap_or(false) {
            data.insert("can_start".to_string(), to_json(&false));
            data.insert("grade_too_low".to_string(), to_json(&true));
        }

        if c.max_grade.map(|maxg| student_grade > maxg).unwrap_or(false) {
            data.insert("can_start".to_string(), to_json(&false));
            data.insert("grade_too_high".to_string(), to_json(&true));
        }
282
    }
283

284
285
286
287
288
289
290
291
292
293
294
    if let Some(start_date) = c.start {
        if time::get_time() < start_date {
            data.insert("can_start".to_string(), to_json(&false));

            let time_until = start_date - time::get_time();
            data.insert("time_until_d".to_string(), to_json(&(time_until.num_days())));
            data.insert("time_until_h".to_string(), to_json(&(time_until.num_hours() % 24)));
            data.insert("time_until_m".to_string(), to_json(&(time_until.num_minutes() % 60)));
        }
    }

295
    // This only checks if a query string is existent, so any query string will
296
    // lead to the assumption that a bare page is requested. This is useful to
297
298
    // disable caching (via random token) but should be changed if query string
    // can obtain more than only this meaning in the future
299
300
301
302
    if query_string.is_none() {
        data.insert("not_bare".to_string(), to_json(&true));
    }

303
304
305
    let mut opt_part = conn.get_participation(&session_token, contest_id);

    // Autostart if appropriate
306
307
308
309
310
    // TODO: Should participation start automatically for teacher? Even before the contest start?
    // Should teachers have all time access or only the same limited amount of time?
    // if opt_part.is_none() && (c.duration == 0 || session.is_teacher) {
    // TODO: Should autostart only happen in the contest time?
    if opt_part.is_none() && c.duration == 0 {
311
        conn.new_participation(&session_token, contest_id).map_err(|_| MedalError::AccessDenied)?;
312
        opt_part = Some(Participation { contest: contest_id, user: session.id, start: time::get_time() });
313
    }
Robert Czechowski's avatar
Robert Czechowski committed
314

315
316
317
318
319
320
    if let Some(participation) = opt_part {
        let now = time::get_time();
        let passed_secs = now.sec - participation.start.sec;
        if passed_secs < 0 {
            // behandle inkonsistente Serverzeit
        }
321

322
323
324
325
326
327
328
329
330
331
        data.insert("started".to_string(), to_json(&true));
        data.insert("participation_start_date".to_string(), to_json(&format!("{}", passed_secs)));
        data.insert("total_points".to_string(), to_json(&totalgrade));
        data.insert("max_total_points".to_string(), to_json(&max_totalgrade));
        data.insert("relative_points".to_string(), to_json(&((totalgrade * 100) / max_totalgrade)));

        let left_secs = i64::from(ci.duration) * 60 - passed_secs;
        if left_secs < 0 {
            // Contest over
            data.insert("is_time_left".to_string(), to_json(&false));
332
333
334
            if c.duration > 0 {
                data.insert("is_time_up".to_string(), to_json(&true));
            }
335
336
337
338
339
340
        } else {
            data.insert("is_time_left".to_string(), to_json(&true));
            let left_min = left_secs / 60;
            let left_sec = left_secs % 60;
            if left_sec < 10 {
                data.insert("time_left".to_string(), to_json(&format!("{}:0{}", left_min, left_sec)));
Robert Czechowski's avatar
Robert Czechowski committed
341
            } else {
342
                data.insert("time_left".to_string(), to_json(&format!("{}:{}", left_min, left_sec)));
Robert Czechowski's avatar
Robert Czechowski committed
343
344
345
            }
        }
    }
346

347
348
349
350
    if c.duration > 0 {
        data.insert("duration".to_string(), to_json(&true));
    }

351
    Ok(("contest".to_owned(), data))
Robert Czechowski's avatar
Robert Czechowski committed
352
353
}

354
pub fn show_contest_results<T: MedalConnection>(conn: &T, contest_id: i32, session_token: &str) -> MedalValueResult {
355
    let session = conn.get_session(&session_token).ensure_logged_in().ok_or(MedalError::NotLoggedIn)?;
356
357
    let mut data = json_val::Map::new();
    fill_user_data(&session, &mut data);
358

359
360
    let (tasknames, resultdata) = conn.get_contest_groups_grades(session.id, contest_id);

361
    let mut results: Vec<(String, i32, Vec<(String, i32, Vec<String>)>)> = Vec::new();
362
363

    for (group, groupdata) in resultdata {
364
        let mut groupresults: Vec<(String, i32, Vec<String>)> = Vec::new();
365

Daniel Brüning's avatar
Daniel Brüning committed
366
        //TODO: use user
367
        for (user, userdata) in groupdata {
368
369
            let mut userresults: Vec<String> = Vec::new();

370
371
372
            userresults.push(String::new());
            let mut summe = 0;

373
            for grade in userdata {
374
375
376
377
378
                if let Some(g) = grade.grade {
                    userresults.push(format!("{}", g));
                    summe += g;
                } else {
                    userresults.push(format!("–"));
379
                }
380
381
            }

382
383
            userresults[0] = format!("{}", summe);

384
385
386
387
388
            groupresults.push((format!("{} {}",
                                       user.firstname.unwrap_or_default(),
                                       user.lastname.unwrap_or_else(|| "–".to_string())),
                               user.id,
                               userresults))
389
        }
390

391
        results.push((format!("{}", group.name), group.id.unwrap_or(0), groupresults));
392
393
394
395
    }

    data.insert("taskname".to_string(), to_json(&tasknames));
    data.insert("result".to_string(), to_json(&results));
396
397

    let c = conn.get_contest_by_id(contest_id);
Robert Czechowski's avatar
Robert Czechowski committed
398
399
400
401
402
403
404
    let ci = ContestInfo { id: c.id.unwrap(),
                           location: c.location.clone(),
                           filename: c.filename.clone(),
                           name: c.name.clone(),
                           duration: c.duration,
                           public: c.public,
                           tasks: Vec::new() };
405
    data.insert("contest".to_string(), to_json(&ci));
406
    data.insert("contestname".to_string(), to_json(&c.name));
407

408
409
410
    Ok(("contestresults".to_owned(), data))
}

411
pub fn start_contest<T: MedalConnection>(conn: &T, contest_id: i32, session_token: &str, csrf_token: &str)
Robert Czechowski's avatar
Robert Czechowski committed
412
                                         -> MedalResult<()> {
413
    // TODO: Is _or_new the right semantic? We need a CSRF token anyway …
414
    let session = conn.get_session_or_new(&session_token);
415
416
    let c = conn.get_contest_by_id(contest_id);

417
418
419
420
421
422
423
424
425
426
427
    // Check contest currently available:
    if let Some(start_date) = c.start {
        if time::get_time() < start_date {
            return Err(MedalError::AccessDenied);
        }
    }
    if let Some(end_date) = c.end {
        if time::get_time() > end_date {
            return Err(MedalError::AccessDenied);
        }
    }
428

429
430
    // TODO: Check participant is in correct age group (not super important)

431
432
    // Check logged in or open contest
    if c.duration != 0 && !session.is_logged_in() {
433
        return Err(MedalError::AccessDenied);
434
    }
435

436
    // Check CSRF token
437
438
439
    if session.is_logged_in() && session.csrf_token != csrf_token {
        return Err(MedalError::CsrfCheckFailed);
    }
440

441
    // Start contest
442
    match conn.new_participation(&session_token, contest_id) {
Robert Czechowski's avatar
Robert Czechowski committed
443
        Ok(_) => Ok(()),
444
        _ => Err(MedalError::AccessDenied), // Contest already started TODO: Maybe redirect to page with hint
Robert Czechowski's avatar
Robert Czechowski committed
445
    }
Robert Czechowski's avatar
Robert Czechowski committed
446
447
}

448
449
450
451
pub fn login<T: MedalConnection>(conn: &T, login_data: (String, String),
                                 (self_url, oauth_providers): (Option<String>, Option<Vec<OauthProvider>>))
                                 -> Result<String, MedalValue>
{
Robert Czechowski's avatar
Robert Czechowski committed
452
453
    let (username, password) = login_data;

454
    match conn.login(None, &username, &password) {
Robert Czechowski's avatar
Robert Czechowski committed
455
        Ok(session_token) => Ok(session_token),
Robert Czechowski's avatar
Robert Czechowski committed
456
457
        Err(()) => {
            let mut data = json_val::Map::new();
458
            data.insert("reason".to_string(), to_json(&"Login fehlgeschlagen. Bitte erneut versuchen.".to_string()));
Robert Czechowski's avatar
Robert Czechowski committed
459
            data.insert("username".to_string(), to_json(&username));
460
461
462
463
464
465
466
467
468
469
470
471
472
473
            data.insert("parent".to_string(), to_json(&"base"));

            let mut oauth_links: Vec<(String, String, String)> = Vec::new();
            if let Some(oauth_providers) = oauth_providers {
                for oauth_provider in oauth_providers {
                    oauth_links.push((oauth_provider.provider_id.to_owned(),
                                      oauth_provider.login_link_text.to_owned(),
                                      oauth_provider.url.to_owned()));
                }
            }

            data.insert("self_url".to_string(), to_json(&self_url));
            data.insert("oauth_links".to_string(), to_json(&oauth_links));

474
            Err(("login".to_owned(), data))
Robert Czechowski's avatar
Robert Czechowski committed
475
476
477
478
        }
    }
}

Robert Czechowski's avatar
Robert Czechowski committed
479
pub fn login_with_code<T: MedalConnection>(
480
    conn: &T, code: &str, (self_url, oauth_providers): (Option<String>, Option<Vec<OauthProvider>>))
Robert Czechowski's avatar
Robert Czechowski committed
481
    -> Result<Result<String, String>, (String, json_val::Map<String, json_val::Value>)> {
482
    match conn.login_with_code(None, &code) {
Robert Czechowski's avatar
Robert Czechowski committed
483
484
485
486
487
488
489
        Ok(session_token) => Ok(Ok(session_token)),
        Err(()) => match conn.create_user_with_groupcode(None, &code) {
            Ok(session_token) => Ok(Err(session_token)),
            Err(()) => {
                let mut data = json_val::Map::new();
                data.insert("reason".to_string(), to_json(&"Kein gültiger Code. Bitte erneut versuchen.".to_string()));
                data.insert("code".to_string(), to_json(&code));
490
491
492
493
494
495
496
497
498
499
500
501
502
503
                data.insert("parent".to_string(), to_json(&"base"));

                let mut oauth_links: Vec<(String, String, String)> = Vec::new();
                if let Some(oauth_providers) = oauth_providers {
                    for oauth_provider in oauth_providers {
                        oauth_links.push((oauth_provider.provider_id.to_owned(),
                                          oauth_provider.login_link_text.to_owned(),
                                          oauth_provider.url.to_owned()));
                    }
                }

                data.insert("self_url".to_string(), to_json(&self_url));
                data.insert("oauth_links".to_string(), to_json(&oauth_links));

Robert Czechowski's avatar
Robert Czechowski committed
504
                Err(("login".to_owned(), data))
Robert Czechowski's avatar
Robert Czechowski committed
505
            }
Robert Czechowski's avatar
Robert Czechowski committed
506
        },
Robert Czechowski's avatar
Robert Czechowski committed
507
508
509
    }
}

510
pub fn logout<T: MedalConnection>(conn: &T, session_token: Option<String>) {
511
    session_token.map(|token| conn.logout(&token));
Robert Czechowski's avatar
Robert Czechowski committed
512
513
}

514
pub fn load_submission<T: MedalConnection>(conn: &T, task_id: i32, session_token: &str, subtask: Option<String>)
Robert Czechowski's avatar
Robert Czechowski committed
515
                                           -> MedalResult<String> {
516
    let session = conn.get_session(&session_token).ensure_alive().ok_or(MedalError::NotLoggedIn)?;
517

518
    match match subtask {
Robert Czechowski's avatar
Robert Czechowski committed
519
520
521
              Some(s) => conn.load_submission(&session, task_id, Some(&s)),
              None => conn.load_submission(&session, task_id, None),
          } {
Robert Czechowski's avatar
Robert Czechowski committed
522
        Some(submission) => Ok(submission.value),
Robert Czechowski's avatar
Robert Czechowski committed
523
        None => Ok("{}".to_string()),
Robert Czechowski's avatar
Robert Czechowski committed
524
525
526
    }
}

527
528
pub fn save_submission<T: MedalConnection>(conn: &T, task_id: i32, session_token: &str, csrf_token: &str,
                                           data: String, grade: i32, subtask: Option<String>)
Robert Czechowski's avatar
Robert Czechowski committed
529
530
                                           -> MedalResult<String>
{
531
    let session = conn.get_session(&session_token).ensure_alive().ok_or(MedalError::NotLoggedIn)?;
Robert Czechowski's avatar
Robert Czechowski committed
532
533

    if session.csrf_token != csrf_token {
534
        return Err(MedalError::CsrfCheckFailed);
Robert Czechowski's avatar
Robert Czechowski committed
535
536
    }

Robert Czechowski's avatar
Robert Czechowski committed
537
538
539
540
541
542
543
544
545
546
    let submission = Submission { id: None,
                                  session_user: session.id,
                                  task: task_id,
                                  grade: grade,
                                  validated: false,
                                  nonvalidated_grade: grade,
                                  needs_validation: true,
                                  subtask_identifier: subtask,
                                  value: data,
                                  date: time::get_time() };
547

Robert Czechowski's avatar
Robert Czechowski committed
548
549
550
551
552
    conn.submit_submission(submission);

    Ok("{}".to_string())
}

553
pub fn show_task<T: MedalConnection>(conn: &T, task_id: i32, session_token: &str) -> MedalValueResult {
554
    let session = conn.get_session_or_new(&session_token);
Robert Czechowski's avatar
Robert Czechowski committed
555

556
    let (t, tg, c) = conn.get_task_by_id_complete(task_id);
557
558
    let grade = conn.get_taskgroup_user_grade(&session_token, tg.id.unwrap()); // TODO: Unwrap?
    let tasklist = conn.get_contest_by_id_complete(c.id.unwrap()); // TODO: Unwrap?
559

560
561
562
    let mut prevtaskgroup: Option<Taskgroup> = None;
    let mut nexttaskgroup: Option<Taskgroup> = None;
    let mut current_found = false;
563

564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
    let mut subtaskstars = Vec::new();

    for taskgroup in tasklist.taskgroups {
        if current_found {
            nexttaskgroup = Some(taskgroup);
            break;
        }

        if taskgroup.id == tg.id {
            current_found = true;
            subtaskstars = generate_subtaskstars(&taskgroup, &grade, Some(task_id));
        } else {
            prevtaskgroup = Some(taskgroup);
        }
    }
579

580
    match conn.get_participation(&session_token, c.id.expect("Value from database")) {
581
        None => Err(MedalError::AccessDenied),
582
583
584
585
586
587
        Some(participation) => {
            let now = time::get_time();
            let passed_secs = now.sec - participation.start.sec;
            if passed_secs < 0 {
                // behandle inkonsistente Serverzeit
            }
Robert Czechowski's avatar
Robert Czechowski committed
588

589
            let mut data = json_val::Map::new();
590
            data.insert("participation_start_date".to_string(), to_json(&format!("{}", passed_secs)));
591
592
593
            data.insert("subtasks".to_string(), to_json(&subtaskstars));
            data.insert("prevtask".to_string(), to_json(&prevtaskgroup.map(|tg| tg.tasks[0].id)));
            data.insert("nexttask".to_string(), to_json(&nexttaskgroup.map(|tg| tg.tasks[0].id))); // TODO: fail better
Robert Czechowski's avatar
Robert Czechowski committed
594

595
            let left_secs = i64::from(c.duration) * 60 - passed_secs;
596
            if c.duration > 0 && left_secs < 0 {
597
                Err(MedalError::AccessDenied)
598
599
600
601
602
            // Contest over
            // TODO: Nicer message!
            } else {
                let (hour, min, sec) = (left_secs / 3600, left_secs / 60 % 60, left_secs % 60);

Robert Czechowski's avatar
Robert Czechowski committed
603
604
                data.insert("time_left".to_string(), to_json(&format!("{}:{:02}", hour, min)));
                data.insert("time_left_sec".to_string(), to_json(&format!(":{:02}", sec)));
605
606

                let taskpath = format!("{}{}", c.location, t.location);
Robert Czechowski's avatar
Robert Czechowski committed
607

608
                data.insert("contestname".to_string(), to_json(&c.name));
609
610
                data.insert("name".to_string(), to_json(&tg.name));
                data.insert("taskid".to_string(), to_json(&task_id));
611
                data.insert("csrf_token".to_string(), to_json(&session.csrf_token));
612
613
                data.insert("taskpath".to_string(), to_json(&taskpath));
                data.insert("contestid".to_string(), to_json(&c.id));
Robert Czechowski's avatar
Robert Czechowski committed
614
                data.insert("seconds_left".to_string(), to_json(&left_secs));
Robert Czechowski's avatar
Robert Czechowski committed
615

Robert Czechowski's avatar
Robert Czechowski committed
616
617
618
619
                if c.duration > 0 {
                    data.insert("duration".to_string(), to_json(&true));
                }

620
621
622
623
                Ok(("task".to_owned(), data))
            }
        }
    }
Robert Czechowski's avatar
Robert Czechowski committed
624
}
Robert Czechowski's avatar
Robert Czechowski committed
625

Robert Czechowski's avatar
Robert Czechowski committed
626
627
#[derive(Serialize, Deserialize)]
pub struct GroupInfo {
628
    pub id: i32,
Robert Czechowski's avatar
Robert Czechowski committed
629
630
631
632
633
    pub name: String,
    pub tag: String,
    pub code: String,
}

Daniel Brüning's avatar
Daniel Brüning committed
634
pub fn show_groups<T: MedalConnection>(conn: &T, session_token: &str) -> MedalValueResult {
635
    let session = conn.get_session(&session_token).ensure_logged_in().ok_or(MedalError::NotLoggedIn)?;
Robert Czechowski's avatar
Robert Czechowski committed
636

Robert Czechowski's avatar
Robert Czechowski committed
637
    //    let groupvec = conn.get_group(session_token);
Robert Czechowski's avatar
Robert Czechowski committed
638
639

    let mut data = json_val::Map::new();
640
    fill_user_data(&session, &mut data);
Robert Czechowski's avatar
Robert Czechowski committed
641

Robert Czechowski's avatar
Robert Czechowski committed
642
643
644
645
646
647
648
649
    let v: Vec<GroupInfo> =
        conn.get_groups(session.id)
            .iter()
            .map(|g| GroupInfo { id: g.id.unwrap(),
                                 name: g.name.clone(),
                                 tag: g.tag.clone(),
                                 code: g.groupcode.clone() })
            .collect();
Robert Czechowski's avatar
Robert Czechowski committed
650
    data.insert("group".to_string(), to_json(&v));
651
    data.insert("csrf_token".to_string(), to_json(&session.csrf_token));
652

653
    Ok(("groups".to_string(), data))
Robert Czechowski's avatar
Robert Czechowski committed
654
655
}

Robert Czechowski's avatar
Robert Czechowski committed
656
657
#[derive(Serialize, Deserialize)]
pub struct MemberInfo {
658
    pub id: i32,
Robert Czechowski's avatar
Robert Czechowski committed
659
660
    pub firstname: String,
    pub lastname: String,
661
    pub grade: String,
Robert Czechowski's avatar
Robert Czechowski committed
662
663
664
    pub logincode: String,
}

665
pub fn show_group<T: MedalConnection>(conn: &T, group_id: i32, session_token: &str) -> MedalValueResult {
666
    let session = conn.get_session(&session_token).ensure_logged_in().ok_or(MedalError::NotLoggedIn)?;
Robert Czechowski's avatar
Robert Czechowski committed
667
    let group = conn.get_group_complete(group_id).unwrap(); // TODO handle error
668

Robert Czechowski's avatar
Robert Czechowski committed
669
    let mut data = json_val::Map::new();
670
    fill_user_data(&session, &mut data);
671

Robert Czechowski's avatar
Robert Czechowski committed
672
    if group.admin != session.id {
673
        return Err(MedalError::AccessDenied);
Robert Czechowski's avatar
Robert Czechowski committed
674
675
    }

Robert Czechowski's avatar
Robert Czechowski committed
676
677
678
679
680
681
682
683
684
685
686
    let gi = GroupInfo { id: group.id.unwrap(),
                         name: group.name.clone(),
                         tag: group.tag.clone(),
                         code: group.groupcode.clone() };

    let v: Vec<MemberInfo> =
        group.members
             .iter()
             .map(|m| MemberInfo { id: m.id,
                                   firstname: m.firstname.clone().unwrap_or_else(|| "".to_string()),
                                   lastname: m.lastname.clone().unwrap_or_else(|| "".to_string()),
687
688
689
690
691
692
693
694
695
696
697
698
                                   grade: match m.grade {
                                       0 => "Noch kein Schüler".to_string(),
                                       n @ 1..=10 => format!("{}", n),
                                       11 => "11 (G8)".to_string(),
                                       12 => "12 (G8)".to_string(),
                                       111 => "11 (G9)".to_string(),
                                       112 => "12 (G9)".to_string(),
                                       113 => "13 (G9)".to_string(),
                                       114 => "Berufsschule".to_string(),
                                       255 => "Kein Schüler mehr".to_string(),
                                       _ => "?".to_string(),
                                   },
Robert Czechowski's avatar
Robert Czechowski committed
699
700
                                   logincode: m.logincode.clone().unwrap_or_else(|| "".to_string()) })
             .collect();
Robert Czechowski's avatar
Robert Czechowski committed
701
702
703

    data.insert("group".to_string(), to_json(&gi));
    data.insert("member".to_string(), to_json(&v));
704
    data.insert("groupname".to_string(), to_json(&gi.name));
Robert Czechowski's avatar
Robert Czechowski committed
705
706
707

    Ok(("group".to_string(), data))
}
Robert Czechowski's avatar
Robert Czechowski committed
708

709
pub fn modify_group<T: MedalConnection>(_conn: &T, _group_id: i32, _session_token: &str) -> MedalResult<()> {
Robert Czechowski's avatar
Robert Czechowski committed
710
711
    unimplemented!()
}
Robert Czechowski's avatar
Robert Czechowski committed
712

Daniel Brüning's avatar
Daniel Brüning committed
713
pub fn add_group<T: MedalConnection>(conn: &T, session_token: &str, csrf_token: &str, name: String, tag: String)
714
                                     -> MedalResult<i32> {
715
    let session = conn.get_session(&session_token).ensure_logged_in().ok_or(MedalError::AccessDenied)?;
Robert Czechowski's avatar
Robert Czechowski committed
716
717

    if session.csrf_token != csrf_token {
718
        return Err(MedalError::CsrfCheckFailed);
Robert Czechowski's avatar
Robert Czechowski committed
719
720
    }

721
    let group_code = helpers::make_group_code();
722
    // TODO: check for collisions
723

Robert Czechowski's avatar
Robert Czechowski committed
724
725
    let mut group =
        Group { id: None, name: name, groupcode: group_code, tag: tag, admin: session.id, members: Vec::new() };
Robert Czechowski's avatar
Robert Czechowski committed
726

Robert Czechowski's avatar
Robert Czechowski committed
727
    conn.add_group(&mut group);
Robert Czechowski's avatar
Robert Czechowski committed
728
729
730

    Ok(group.id.unwrap())
}
731

732
pub fn group_csv<T: MedalConnection>(conn: &T, session_token: &str) -> MedalValueResult {
733
    let session = conn.get_session(&session_token).ensure_logged_in().ok_or(MedalError::NotLoggedIn)?;
734
735
736
737
738
739
740

    let mut data = json_val::Map::new();
    data.insert("csrf_token".to_string(), to_json(&session.csrf_token));

    Ok(("groupcsv".to_string(), data))
}

741
// TODO: Should creating the users and groups happen in a batch operation to speed things up?
Robert Czechowski's avatar
rustfmt    
Robert Czechowski committed
742
743
pub fn upload_groups<T: MedalConnection>(conn: &T, session_token: &str, csrf_token: &str, group_data: &str)
                                         -> MedalResult<()> {
744
    let session = conn.get_session(&session_token).ensure_logged_in().ok_or(MedalError::NotLoggedIn)?;
745
746
747
748
749

    if session.csrf_token != csrf_token {
        return Err(MedalError::CsrfCheckFailed);
    }

Robert Czechowski's avatar
rustfmt    
Robert Czechowski committed
750
751
    println!("{}", group_data);

752
753
754
755
756
    let mut v: Vec<Vec<String>> = serde_json::from_str(group_data).or(Err(MedalError::AccessDenied))?; // TODO: Change error type
    v.sort_unstable_by(|a, b| a[0].partial_cmp(&b[0]).unwrap());

    let mut group_code = "".to_string();
    let mut name = "".to_string();
Robert Czechowski's avatar
rustfmt    
Robert Czechowski committed
757
758
759
760
761
762
763
    let mut group = Group { id: None,
                            name: name.clone(),
                            groupcode: group_code,
                            tag: "".to_string(),
                            admin: session.id,
                            members: Vec::new() };

764
765
    for line in v {
        if name != line[0] {
766
            if name != "" {
767
                conn.create_group_with_users(group);
Robert Czechowski's avatar
rustfmt    
Robert Czechowski committed
768
            }
769
770
771
772
            name = line[0].clone();
            group_code = helpers::make_group_code();
            // TODO: check for collisions

Robert Czechowski's avatar
rustfmt    
Robert Czechowski committed
773
774
775
776
777
778
            group = Group { id: None,
                            name: name.clone(),
                            groupcode: group_code,
                            tag: name.clone(),
                            admin: session.id,
                            members: Vec::new() };
779
780
781
782
783
784
785
786
787
788
789
        }

        let mut user = SessionUser::group_user_stub();
        user.grade = line[1].parse::<i32>().unwrap_or(0);
        user.firstname = Some(line[2].clone());
        user.lastname = Some(line[3].clone());

        group.members.push(user);
    }
    conn.create_group_with_users(group);

790
791
792
    Ok(())
}

Daniel Brüning's avatar
Daniel Brüning committed
793
#[allow(dead_code)]
794
pub fn show_groups_results<T: MedalConnection>(conn: &T, contest_id: i32, session_token: &str) -> MedalValueResult {
795
    let session = conn.get_session(&session_token).ensure_logged_in().ok_or(MedalError::NotLoggedIn)?;
Daniel Brüning's avatar
Daniel Brüning committed
796
797
    //TODO: use g
    let _g = conn.get_contest_groups_grades(session.id, contest_id);
798

799
    let data = json_val::Map::new();
800
801
802

    Ok(("groupresults".into(), data))
}
Robert Czechowski's avatar
Robert Czechowski committed
803

804
pub fn show_profile<T: MedalConnection>(conn: &T, session_token: &str, user_id: Option<i32>,
Robert Czechowski's avatar
Robert Czechowski committed
805
806
807
                                        query_string: Option<String>)
                                        -> MedalValueResult
{
808
    let session = conn.get_session(&session_token).ensure_logged_in().ok_or(MedalError::NotLoggedIn)?;
Robert Czechowski's avatar
Robert Czechowski committed
809
810

    let mut data = json_val::Map::new();
811
    fill_user_data(&session, &mut data);
Robert Czechowski's avatar
Robert Czechowski committed
812

813
814
    match user_id {
        None => {
815
816
817
818
819
            data.insert("profile_firstname".to_string(), to_json(&session.firstname));
            data.insert("profile_lastname".to_string(), to_json(&session.lastname));
            data.insert("profile_street".to_string(), to_json(&session.street));
            data.insert("profile_zip".to_string(), to_json(&session.zip));
            data.insert("profile_city".to_string(), to_json(&session.city));
820
            data.insert(format!("sel{}", session.grade), to_json(&"selected"));
821
822
823
824
825
            if let Some(sex) = session.sex {
                data.insert(format!("sex_{}", sex), to_json(&"selected"));
            } else {
                data.insert("sex_None".to_string(), to_json(&"selected"));
            }
826

827
            data.insert("profile_logincode".to_string(), to_json(&session.logincode));
828
            if session.password.is_some() {
829
                data.insert("profile_username".to_string(), to_json(&session.username));
830
831
            }
            if session.managed_by.is_none() {
832
                data.insert("profile_not_in_group".into(), to_json(&true));
833
834
835
            }
            data.insert("ownprofile".into(), to_json(&true));

836
            if let Some(query) = query_string {
837
                if query.starts_with("status=") {
838
                    let status: &str = &query[7..];
839
                    if ["NothingChanged", "DataChanged", "PasswordChanged", "PasswordMissmatch", "firstlogin"].contains(&status) {
840
841
                        data.insert((status).to_string(), to_json(&true));
                    }
842
843
                }
            }
Robert Czechowski's avatar
Robert Czechowski committed
844
        }
845
846
847
848
849
850
851
852
        Some(user_id) => {
            // TODO: Add test to check if this access restriction works
            let (user, opt_group) = conn.get_user_and_group_by_id(user_id).ok_or(MedalError::AccessDenied)?;
            let group = opt_group.ok_or(MedalError::AccessDenied)?;
            if group.admin != session.id {
                return Err(MedalError::AccessDenied);
            }

853
854
855
856
857
            data.insert("profile_firstname".to_string(), to_json(&user.firstname));
            data.insert("profile_lastname".to_string(), to_json(&user.lastname));
            data.insert("profile_street".to_string(), to_json(&session.street));
            data.insert("profile_zip".to_string(), to_json(&session.zip));
            data.insert("profile_city".to_string(), to_json(&session.city));
858
            data.insert(format!("sel{}", user.grade), to_json(&"selected"));
859
860
861
862
863
            if let Some(sex) = user.sex {
                data.insert(format!("sex_{}", sex), to_json(&"selected"));
            } else {
                data.insert("sex_None".to_string(), to_json(&"selected"));
            }
864

865
            data.insert("profile_logincode".to_string(), to_json(&user.logincode));
866
            if user.username.is_some() {
867
                data.insert("profile_username".to_string(), to_json(&user.username));
868
869
            }
            if user.managed_by.is_none() {
870
                data.insert("profile_not_in_group".into(), to_json(&true));
871
            }
872

873
            data.insert("ownprofile".into(), to_json(&false));
874

875
876
877
878
879
880
881
882
            if let Some(query) = query_string {
                if query.starts_with("status=") {
                    let status: &str = &query[7..];
                    if ["NothingChanged", "DataChanged", "PasswordChanged", "PasswordMissmatch"].contains(&status) {
                        data.insert((status).to_string(), to_json(&true));
                    }
                }
            }
883
884
        }
    }
885

886
    Ok(("profile".to_string(), data))
Robert Czechowski's avatar
Robert Czechowski committed
887
888
}

889
#[derive(Debug, PartialEq)]
890
pub enum ProfileStatus {
Daniel Brüning's avatar
Daniel Brüning committed
891
892
893
894
    NothingChanged,
    DataChanged,
    PasswordChanged,
    PasswordMissmatch,
895
896
}
impl std::convert::Into<String> for ProfileStatus {
Robert Czechowski's avatar
Robert Czechowski committed
897
    fn into(self) -> String { format!("{:?}", self) }
898
899
}

900
pub fn edit_profile<T: MedalConnection>(conn: &T, session_token: &str, user_id: Option<i32>, csrf_token: &str,
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
                                        (firstname,
                                         lastname,
                                         street,
                                         zip,
                                         city,
                                         password,
                                         password_repeat,
                                         grade,
                                         sex): (String,
                                         String,
                                         Option<String>,
                                         Option<String>,
                                         Option<String>,
                                         Option<String>,
                                         Option<String>,
                                         i32,
                                         Option<i32>))
Robert Czechowski's avatar
Robert Czechowski committed
918
919
                                        -> MedalResult<ProfileStatus>
{
920
    let mut session = conn.get_session(&session_token).ensure_logged_in().ok_or(MedalError::NotLoggedIn)?;
Robert Czechowski's avatar
Robert Czechowski committed
921
922

    if session.csrf_token != csrf_token {
923
        return Err(MedalError::AccessDenied); // CsrfError
Robert Czechowski's avatar
Robert Czechowski committed
924
925
    }

926
    let mut result = ProfileStatus::NothingChanged;
927

928
    let mut password_and_salt = None;
929

930
931
932
    if let (Some(password), Some(password_repeat)) = (password, password_repeat) {
        if password != "" || password_repeat != "" {
            if password == password_repeat {
933
934
                let salt = helpers::make_salt();
                let hash = helpers::hash_password(&password, &salt)?;
Daniel Brüning's avatar
Daniel Brüning committed
935

936
937
938
939
940
                password_and_salt = Some((hash, salt));
                result = ProfileStatus::PasswordChanged;
            } else {
                result = ProfileStatus::PasswordMissmatch;
            }
941
942
943
944
945
946
947
948
949
950
951
952
        }
    }

    if result == ProfileStatus::NothingChanged {
        if session.firstname.as_ref() == Some(&firstname)
           && session.lastname.as_ref() == Some(&lastname)
           && session.street == street
           && session.zip == zip
           && session.city == city
           && session.grade == grade
           && session.sex == sex
        {
953
            return Ok(ProfileStatus::NothingChanged);
954
955
        } else {
            result = ProfileStatus::DataChanged;
956
        }
957
958
    }

959
960
961
962
963
    match user_id {
        None => {
            session.firstname = Some(firstname);
            session.lastname = Some(lastname);
            session.grade = grade;
964
            session.sex = sex;
965

966
967
968
969
970
971
972
973
974
975
976
            if street.is_some() {
                session.street = street;
            }
            if zip.is_some() {
                session.zip = zip;
            }
            if city.is_some() {
                session.city = city;
            }

            if let Some((password, salt)) = password_and_salt {
977
978
                session.password = Some(password);
                session.salt = Some(salt);
979
            }