aboutsummaryrefslogtreecommitdiff
path: root/aero-proto/src/dav/resource.rs
blob: 7477ba9e7419e087cd7bf47df16669b5e8fc3364 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
use std::sync::Arc;
type ArcUser = std::sync::Arc<User>;

use anyhow::{anyhow, bail, Result};
use futures::stream::{TryStream, TryStreamExt, StreamExt};
use futures::io::AsyncReadExt;
use futures::{future::BoxFuture, future::FutureExt};

use aero_collections::{user::User, calendar::Calendar, davdag::{BlobId, IndexEntry, Etag}};
use aero_dav::types as dav;
use aero_dav::caltypes as cal;
use aero_dav::acltypes as acl;
use aero_dav::realization::{All, self as all};

use crate::dav::node::{DavNode, PutPolicy, Content};
use super::node::PropertyStream;

#[derive(Clone)]
pub(crate) struct RootNode {}
impl DavNode for RootNode {
    fn fetch<'a>(&self, user: &'a ArcUser, path: &'a [&str], create: bool) -> BoxFuture<'a, Result<Box<dyn DavNode>>> {
        if path.len() == 0 {
            let this = self.clone();
            return async { Ok(Box::new(this) as Box<dyn DavNode>) }.boxed();
        }

        if path[0] == user.username {
            let child = Box::new(HomeNode {});
            return child.fetch(user, &path[1..], create);
        }

        //@NOTE: We can't create a node at this level
        async { Err(anyhow!("Not found")) }.boxed()
    }

    fn children<'a>(&self, user: &'a ArcUser) -> BoxFuture<'a, Vec<Box<dyn DavNode>>> {
        async { vec![Box::new(HomeNode { }) as Box<dyn DavNode>] }.boxed()
    }

    fn path(&self, user: &ArcUser) -> String {
        "/".into()
    }

    fn supported_properties(&self, user: &ArcUser) -> dav::PropName<All> {
        dav::PropName(vec![
            dav::PropertyRequest::DisplayName,
            dav::PropertyRequest::ResourceType,
            dav::PropertyRequest::GetContentType,
            dav::PropertyRequest::Extension(all::PropertyRequest::Acl(acl::PropertyRequest::CurrentUserPrincipal)),
        ])
    }

    fn properties(&self, user: &ArcUser, prop: dav::PropName<All>) -> PropertyStream<'static> {
        let user = user.clone();
        futures::stream::iter(prop.0).map(move |n| {
            let prop = match n {
                dav::PropertyRequest::DisplayName => dav::Property::DisplayName("DAV Root".to_string()),
                dav::PropertyRequest::ResourceType => dav::Property::ResourceType(vec![
                    dav::ResourceType::Collection,
                ]),
                dav::PropertyRequest::GetContentType => dav::Property::GetContentType("httpd/unix-directory".into()),
                dav::PropertyRequest::Extension(all::PropertyRequest::Acl(acl::PropertyRequest::CurrentUserPrincipal)) =>
                    dav::Property::Extension(all::Property::Acl(acl::Property::CurrentUserPrincipal(acl::User::Authenticated(dav::Href(HomeNode{}.path(&user)))))),
                v => return Err(v),
            };
            Ok(prop)
        }).boxed()
    }

    fn put<'a>(&'a self, _policy: PutPolicy, stream: Content<'a>) -> BoxFuture<'a, Result<Etag>> {
        todo!()
    }

    fn content(&self) -> Content<'static> {
        futures::stream::once(futures::future::err(std::io::Error::from(std::io::ErrorKind::Unsupported))).boxed()
    }

    fn content_type(&self) -> &str {
        "text/plain"
    }
}

#[derive(Clone)]
pub(crate) struct HomeNode {}
impl DavNode for HomeNode {
    fn fetch<'a>(&self, user: &'a ArcUser, path: &'a [&str], create: bool) -> BoxFuture<'a, Result<Box<dyn DavNode>>> {
        if path.len() == 0 {
            let node = Box::new(self.clone()) as Box<dyn DavNode>;
            return async { Ok(node) }.boxed()
        }

        if path[0] == "calendar" {
            return async move {
                let child = Box::new(CalendarListNode::new(user).await?);
                child.fetch(user, &path[1..], create).await
            }.boxed();
        }
    
        //@NOTE: we can't create a node at this level
        async { Err(anyhow!("Not found")) }.boxed()
    }

    fn children<'a>(&self, user: &'a ArcUser) -> BoxFuture<'a, Vec<Box<dyn DavNode>>> {
        async { 
            CalendarListNode::new(user).await
                .map(|c| vec![Box::new(c) as Box<dyn DavNode>])
                .unwrap_or(vec![]) 
        }.boxed()
    }

    fn path(&self, user: &ArcUser) -> String {
        format!("/{}/", user.username)
    }

    fn supported_properties(&self, user: &ArcUser) -> dav::PropName<All> {
        dav::PropName(vec![
            dav::PropertyRequest::DisplayName,
            dav::PropertyRequest::ResourceType,
            dav::PropertyRequest::GetContentType,
            dav::PropertyRequest::Extension(all::PropertyRequest::Cal(cal::PropertyRequest::CalendarHomeSet)),
        ])
    }
    fn properties(&self, user: &ArcUser, prop: dav::PropName<All>) -> PropertyStream<'static> {
        let user = user.clone();

        futures::stream::iter(prop.0).map(move |n| {
            let prop = match n {
                dav::PropertyRequest::DisplayName => dav::Property::DisplayName(format!("{} home", user.username)),
                dav::PropertyRequest::ResourceType => dav::Property::ResourceType(vec![
                    dav::ResourceType::Collection,
                    dav::ResourceType::Extension(all::ResourceType::Acl(acl::ResourceType::Principal)),
                ]),
                dav::PropertyRequest::GetContentType => dav::Property::GetContentType("httpd/unix-directory".into()),
                dav::PropertyRequest::Extension(all::PropertyRequest::Cal(cal::PropertyRequest::CalendarHomeSet)) => 
                    dav::Property::Extension(all::Property::Cal(cal::Property::CalendarHomeSet(dav::Href(
                        //@FIXME we are hardcoding the calendar path, instead we would want to use
                        //objects
                        format!("/{}/calendar/", user.username)
                    )))),
                v => return Err(v),
            };
            Ok(prop)
        }).boxed()
    }

    fn put<'a>(&'a self, _policy: PutPolicy, stream: Content<'a>) -> BoxFuture<'a, Result<Etag>> {
        todo!()
    }
    
    fn content(&self) -> Content<'static> {
        futures::stream::once(futures::future::err(std::io::Error::from(std::io::ErrorKind::Unsupported))).boxed()
    }


    fn content_type(&self) -> &str {
        "text/plain"
    }
}

#[derive(Clone)]
pub(crate) struct CalendarListNode {
    list: Vec<String>,
}
impl CalendarListNode {
    async fn new(user: &ArcUser) -> Result<Self> {
        let list = user.calendars.list(user).await?;
        Ok(Self { list })
    }
}
impl DavNode for CalendarListNode {
    fn fetch<'a>(&self, user: &'a ArcUser, path: &'a [&str], create: bool) -> BoxFuture<'a, Result<Box<dyn DavNode>>> {
        if path.len() == 0 {
            let node = Box::new(self.clone()) as Box<dyn DavNode>;
            return async { Ok(node) }.boxed();
        }

        async move {
            //@FIXME: we should create a node if the open returns a "not found".
            let cal = user.calendars.open(user, path[0]).await?.ok_or(anyhow!("Not found"))?;
            let child = Box::new(CalendarNode { 
                col: cal,
                calname: path[0].to_string()
            });
            child.fetch(user, &path[1..], create).await
        }.boxed()
    }

    fn children<'a>(&self, user: &'a ArcUser) -> BoxFuture<'a, Vec<Box<dyn DavNode>>> {
        let list = self.list.clone();
        async move {
            //@FIXME maybe we want to be lazy here?!
            futures::stream::iter(list.iter())
                .filter_map(|name| async move {
                    user.calendars.open(user, name).await
                        .ok()
                        .flatten()
                        .map(|v| (name, v))
                })
                .map(|(name, cal)| Box::new(CalendarNode { 
                    col: cal,
                    calname: name.to_string(),
                }) as Box<dyn DavNode>)
                .collect::<Vec<Box<dyn DavNode>>>()
                .await
        }.boxed()
    }

    fn path(&self, user: &ArcUser) -> String {
        format!("/{}/calendar/", user.username)
    }

    fn supported_properties(&self, user: &ArcUser) -> dav::PropName<All> {
        dav::PropName(vec![
            dav::PropertyRequest::DisplayName,
            dav::PropertyRequest::ResourceType,
            dav::PropertyRequest::GetContentType,
        ])
    }
    fn properties(&self, user: &ArcUser, prop: dav::PropName<All>) -> PropertyStream<'static> {
        let user = user.clone();

        futures::stream::iter(prop.0).map(move |n| {
            let prop = match n {
                dav::PropertyRequest::DisplayName => dav::Property::DisplayName(format!("{} calendars", user.username)),
                dav::PropertyRequest::ResourceType => dav::Property::ResourceType(vec![dav::ResourceType::Collection]),
                dav::PropertyRequest::GetContentType => dav::Property::GetContentType("httpd/unix-directory".into()),
                v => return Err(v),
            };
            Ok(prop)
        }).boxed()
    }

    fn put<'a>(&'a self, _policy: PutPolicy, stream: Content<'a>) -> BoxFuture<'a, Result<Etag>> {
        todo!()
    }

    fn content(&self) -> Content<'static> {
        futures::stream::once(futures::future::err(std::io::Error::from(std::io::ErrorKind::Unsupported))).boxed()
    }

    fn content_type(&self) -> &str {
        "text/plain"
    }
}

#[derive(Clone)]
pub(crate) struct CalendarNode {
    col: Arc<Calendar>,
    calname: String,
}
impl DavNode for CalendarNode {
    fn fetch<'a>(&self, user: &'a ArcUser, path: &'a [&str], create: bool) -> BoxFuture<'a, Result<Box<dyn DavNode>>> {
        if path.len() == 0 {
            let node = Box::new(self.clone()) as Box<dyn DavNode>;
            return async { Ok(node) }.boxed()
        }

        let col = self.col.clone();
        let calname = self.calname.clone();
        async move {
            match (col.dag().await.idx_by_filename.get(path[0]), create) {
                (Some(blob_id), _) => { 
                    let child = Box::new(EventNode {
                        col: col.clone(),
                        calname,
                        filename: path[0].to_string(),
                        blob_id: *blob_id,
                    });
                    child.fetch(user, &path[1..], create).await
                },
                (None, true) => {
                    let child = Box::new(CreateEventNode {
                        col: col.clone(),
                        calname,
                        filename: path[0].to_string(),
                    });
                    child.fetch(user, &path[1..], create).await
                }, 
                _ => Err(anyhow!("Not found")),
            }

        }.boxed()
    }

    fn children<'a>(&self, user: &'a ArcUser) -> BoxFuture<'a, Vec<Box<dyn DavNode>>> {
        let col = self.col.clone();
        let calname = self.calname.clone();

        async move {
            col.dag().await.idx_by_filename.iter().map(|(filename, blob_id)| {
                Box::new(EventNode { 
                    col: col.clone(),
                    calname: calname.clone(),
                    filename: filename.to_string(),
                    blob_id: *blob_id,
                }) as Box<dyn DavNode>
            }).collect()
        }.boxed()
    }

    fn path(&self, user: &ArcUser) -> String {
        format!("/{}/calendar/{}/", user.username, self.calname)
    }

    fn supported_properties(&self, user: &ArcUser) -> dav::PropName<All> {
        dav::PropName(vec![
            dav::PropertyRequest::DisplayName,
            dav::PropertyRequest::ResourceType,
            dav::PropertyRequest::GetContentType,
            dav::PropertyRequest::Extension(all::PropertyRequest::Cal(cal::PropertyRequest::SupportedCalendarComponentSet)),
        ])
    }
    fn properties(&self, _user: &ArcUser, prop: dav::PropName<All>) -> PropertyStream<'static> {
        let calname = self.calname.to_string();

        futures::stream::iter(prop.0).map(move |n| {
            let prop = match n {
                dav::PropertyRequest::DisplayName =>  dav::Property::DisplayName(format!("{} calendar", calname)),
                dav::PropertyRequest::ResourceType =>  dav::Property::ResourceType(vec![
                    dav::ResourceType::Collection,
                    dav::ResourceType::Extension(all::ResourceType::Cal(cal::ResourceType::Calendar)),
                ]),
                //dav::PropertyRequest::GetContentType => dav::AnyProperty::Value(dav::Property::GetContentType("httpd/unix-directory".into())),
                //@FIXME seems wrong but seems to be what Thunderbird expects...
                dav::PropertyRequest::GetContentType => dav::Property::GetContentType("text/calendar".into()),
                dav::PropertyRequest::Extension(all::PropertyRequest::Cal(cal::PropertyRequest::SupportedCalendarComponentSet))
                    => dav::Property::Extension(all::Property::Cal(cal::Property::SupportedCalendarComponentSet(vec![
                        cal::CompSupport(cal::Component::VEvent),
                    ]))),
                v => return Err(v),
            };
            Ok(prop)
        }).boxed()
    }

    fn put<'a>(&'a self, _policy: PutPolicy, stream: Content<'a>) -> BoxFuture<'a, Result<Etag>> {
        todo!()
    }

    fn content<'a>(&'a self) -> Content<'static> {
        futures::stream::once(futures::future::err(std::io::Error::from(std::io::ErrorKind::Unsupported))).boxed()
    }

    fn content_type(&self) -> &str {
        "text/plain"
    }
}

#[derive(Clone)]
pub(crate) struct EventNode {
    col: Arc<Calendar>,
    calname: String,
    filename: String,
    blob_id: BlobId,
}
impl EventNode {
    async fn etag(&self) -> Result<Etag> {
        self.col.dag().await.table.get(&self.blob_id).map(|(_, _, etag)| etag.to_string()).ok_or(anyhow!("Missing blob id in index"))
    }
}

impl DavNode for EventNode {
    fn fetch<'a>(&self, user: &'a ArcUser, path: &'a [&str], create: bool) -> BoxFuture<'a, Result<Box<dyn DavNode>>> {
        if path.len() == 0 {
            let node = Box::new(self.clone()) as Box<dyn DavNode>;
            return async { Ok(node) }.boxed()
        }

        async { Err(anyhow!("Not supported: can't create a child on an event node")) }.boxed()
    }

    fn children<'a>(&self, user: &'a ArcUser) -> BoxFuture<'a, Vec<Box<dyn DavNode>>> {
        async { vec![] }.boxed()
    }

    fn path(&self, user: &ArcUser) -> String {
        format!("/{}/calendar/{}/{}", user.username, self.calname, self.filename)
    }

    fn supported_properties(&self, user: &ArcUser) -> dav::PropName<All> {
        dav::PropName(vec![
            dav::PropertyRequest::DisplayName,
            dav::PropertyRequest::ResourceType,
            dav::PropertyRequest::GetEtag,
            dav::PropertyRequest::Extension(all::PropertyRequest::Cal(cal::PropertyRequest::CalendarData(cal::CalendarDataRequest::default()))),
        ])
    }
    fn properties(&self, _user: &ArcUser, prop: dav::PropName<All>) -> PropertyStream<'static> {
        let this = self.clone();

        futures::stream::iter(prop.0).then(move |n| {
            let this = this.clone();

            async move {
                let prop = match &n {
                    dav::PropertyRequest::DisplayName => dav::Property::DisplayName(format!("{} event", this.filename)),
                    dav::PropertyRequest::ResourceType => dav::Property::ResourceType(vec![]),
                    dav::PropertyRequest::GetContentType => dav::Property::GetContentType("text/calendar".into()),
                    dav::PropertyRequest::GetEtag => dav::Property::GetEtag("\"abcdefg\"".into()),
                    dav::PropertyRequest::Extension(all::PropertyRequest::Cal(cal::PropertyRequest::CalendarData(_req))) => {
                        let ics = String::from_utf8(this.col.get(this.blob_id).await.or(Err(n.clone()))?).or(Err(n.clone()))?;
                        
                        dav::Property::Extension(all::Property::Cal(cal::Property::CalendarData(cal::CalendarDataPayload { 
                            mime: None, 
                            payload: ics,
                        })))
                    },
                    _ => return Err(n),
                };
                Ok(prop)
            }
        }).boxed()
    }

    fn put<'a>(&'a self, policy: PutPolicy, stream: Content<'a>) -> BoxFuture<'a, Result<Etag>> {
        async {
            let existing_etag = self.etag().await?;
            match policy {
                PutPolicy::CreateOnly => bail!("Already existing"),
                PutPolicy::ReplaceEtag(etag) if etag != existing_etag.as_str() => bail!("Would overwrite something we don't know"),
                _ => ()
            };

            //@FIXME for now, our storage interface does not allow streaming,
            // so we load everything in memory
            let mut evt = Vec::new();
            let mut reader = stream.into_async_read();
            reader.read_to_end(&mut evt).await.unwrap();
            let (_token, entry) = self.col.put(self.filename.as_str(), evt.as_ref()).await?;
            Ok(entry.2)
        }.boxed()
    }

    fn content<'a>(&'a self) -> Content<'static> {
        //@FIXME for now, our storage interface does not allow streaming,
        // so we load everything in memory
        let calendar = self.col.clone();
        let blob_id = self.blob_id.clone();
        let r = async move {
            let content = calendar.get(blob_id).await.or(Err(std::io::Error::from(std::io::ErrorKind::Interrupted)));
            Ok(hyper::body::Bytes::from(content?))
        };
        futures::stream::once(Box::pin(r)).boxed()
    }

    fn content_type(&self) -> &str {
        "text/calendar"
    }
}

#[derive(Clone)]
pub(crate) struct CreateEventNode {
    col: Arc<Calendar>,
    calname: String,
    filename: String,
}
impl DavNode for CreateEventNode {
    fn fetch<'a>(&self, user: &'a ArcUser, path: &'a [&str], create: bool) -> BoxFuture<'a, Result<Box<dyn DavNode>>> {
        if path.len() == 0 {
            let node = Box::new(self.clone()) as Box<dyn DavNode>;
            return async { Ok(node) }.boxed()
        }

        async { Err(anyhow!("Not supported: can't create a child on an event node")) }.boxed()
    }

    fn children<'a>(&self, user: &'a ArcUser) -> BoxFuture<'a, Vec<Box<dyn DavNode>>> {
        async { vec![] }.boxed()
    }

    fn path(&self, user: &ArcUser) -> String {
        format!("/{}/calendar/{}/{}", user.username, self.calname, self.filename)
    }

    fn supported_properties(&self, user: &ArcUser) -> dav::PropName<All> {
        dav::PropName(vec![])
    }

    fn properties(&self, _user: &ArcUser, prop: dav::PropName<All>) ->  PropertyStream<'static> {
        futures::stream::iter(vec![]).boxed()
    }

    fn put<'a>(&'a self, _policy: PutPolicy, stream: Content<'a>) -> BoxFuture<'a, Result<Etag>> {
        //@NOTE: policy might not be needed here: whatever we put, there is no known entries here
        
        async {
            //@FIXME for now, our storage interface does not allow for streaming
            let mut evt = Vec::new();
            let mut reader = stream.into_async_read();
            reader.read_to_end(&mut evt).await.unwrap();
            let (_token, entry) = self.col.put(self.filename.as_str(), evt.as_ref()).await?;
            Ok(entry.2)
        }.boxed()
    }

    fn content(&self) -> Content<'static> {
        futures::stream::once(futures::future::err(std::io::Error::from(std::io::ErrorKind::Unsupported))).boxed()
    }

    fn content_type(&self) -> &str {
        "text/plain"
    }
}