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
(define-module (render timeline-atom)
#:use-module (srfi srfi-19) ;; date
#:use-module (web server)
#:use-module (web request)
#:use-module (web response)
#:use-module (web uri)
#:use-module (sxml simple)
#:use-module (database postgres)
#:use-module (database)
#:use-module (database-fetch)
#:use-module (privileges)
#:use-module (settings)
#:use-module (utils)
#:use-module (notice)
#:use-module (search)
#:use-module (render profile)
#:use-module (ice-9 match)
#:export (make-timeline-atom
make-atom-entry))
(define xmlns
'((xmlns "http://www.w3.org/2005/Atom")
(xmlns:thr "http://purl.org/syndication/thread/1.0")
(xmlns:georss "http://www.georss.org/georss")
(xmlns:activity "http://activitystrea.ms/spec/1.0/")
(xmlns:media "http://purl.org/syndication/atommedia")
(xmlns:poco "http://portablecontacts.net/spec/1.0")
(xmlns:ostatus "http://ostatus.org/schema/1.0")
(xmlns:statusnet "http://status.net/schema/api/1/")))
(define-syntax-rule (optional-tag condition tag)
(if condition
tag
#f))
(define* (make-atom-entry db notice #:optional (include-xmlns #t) (author #f))
(define verb (assoc-ref notice 'verb))
(define verb-suffix (or (string-match1 "/([^/]+)$" verb) verb))
(define (unimplemented)
(warn "not implemented renderer for verb" verb)
(make-entry-basic db notice include-xmlns author))
(match verb
;; ("follow" (make-entry-un/follow db notice follower followed #:optional (include-xmlns #t)))
;; ("unfollow" (make-entry-un/follow db notice follower followed #:optional (include-xmlns #t)))
("post" (make-entry-basic db notice include-xmlns author))
(else (unimplemented))))
(define* (make-entry-basic db notice #:optional (include-xmlns #t) (author #f))
(define id-str (notice-id-str notice))
(define (make-mention user)
`(link (@ (rel "mentioned")
(ostatus:object-type "http://activitystrea.ms/schema/1.0/person")
(href ,(assoc-ref user 'uri)))))
(define mentions (cons '(link (@ (rel "mentioned")
(ostatus:object-type "http://activitystrea.ms/schema/1.0/collection")
(href "http://activityschema.org/collection/public")))
(map (lambda (handle+host)
(make-mention
(import-profile-webfinger!
db
(string-append "acct:" (cdr handle+host)))))
(notice-recipents db notice))))
(define conversation-uri (assoc-ref notice 'conversation_uri))
(define conversation-url (assoc-ref notice 'conversation_url))
`(entry ,(if include-xmlns
(cons '@ xmlns)
'())
,@(basic-entry-headers notice)
(activity:object-type "http://activitystrea.ms/schema/1.0/note")
,(if author
(make-author author)
'())
(link (@ (rel "alternate")
(type "text/html")
(href ,(string-append *site-base-url* "/notice/" id-str))))
(link (@ (rel "self")
(type "application/atom+xml")
(href ,(string-append *site-base-url* "api/statuses/show/" id-str ".atom"))))
(statusnet:notice_info (@ (local_id ,id-str)
(source "web")
(repeated "false")
(favorite "false")))
,(if conversation-uri
`(ostatus:conversation (@ ,(if conversation-url `(href ,conversation-url) '())
(local_id ,(assoc-ref notice 'conversation))
(ref ,conversation-uri))
,conversation-uri)
'())
,@mentions
(content (@ (type "html"))
,(assoc-ref notice 'text))))
(define* (make-entry-un/follow db notice follower followed #:optional (include-xmlns #t))
`(entry ,(if include-xmlns
(cons '@ xmlns)
'())
,@(basic-entry-headers notice)
,(make-author follower)
;; maybe add the followers tag, but I see no reason. Wouldn't following make more sense?
;; ,(cons `(followers (@ (url ,(string-append *site-base-url* handle "followers"))))
;; (make-author follower))
;; the followed
(activity:object
,(cdr (map (lambda (field)
;; rename uri to id
(if (eq? (car field) 'uri)
(cons 'id (cdr field))
field))
(make-author followed))))))
(define (basic-entry-headers notice)
(define verb (assoc-ref notice 'verb))
(define date (assoc-ref notice 'createtime))
(define id-str (notice-id-str notice))
(define date-str (if (string? date)
date
(date->string date "~1T~2")))
`((id ,(assoc-ref notice 'uri))
(title "new notice by")
(status_net (@ (notice_id ,id-str)))
(activity:verb ,verb)
(published ,date-str)
(updated ,date-str)))
(define (make-author user)
(define handle (assoc-ref user 'handle))
(define any-name (if (string-null? (assoc-ref user 'displayname))
(assoc-ref user 'handle)
(assoc-ref user 'displayname)))
(define bio (assoc-ref user 'bio))
`(author
(activity:object-type "http://activitystrea.ms/schema/1.0/person")
(name ,handle)
(uri ,(assoc-value 'uri user))
(summary ,bio)
;; TODO add more details about thumbs
(link (@ (rel "avatar")
(type "image/png")
(href ,(avatar-absolutepath user))))
(poco:preferredUsername ,any-name)
(poco:displayName ,any-name)
(poco:note ,bio)))
(define* (make-timeline-atom db notices current-user user pagination-id)
(define (make-entry notice) (make-atom-entry db notice #f))
(define (feed-headers)
(define user-id-str (assoc-ref user 'id))
;; <link href="http://localhost/gs/index.php/api/statuses/user_timeline/1.atom" rel="self" type="application/atom+xml"/>
`((link (@ (rel "self")
(type "application/atom+xml")
(href ,(string-append *site-base-url*
"/api/statuses/user_timeline/"
user-id-str
".atom"))))
;; <link href="http://localhost/gs/index.php/main/push/hub" rel="hub"/>
(link (@ (rel "hub")
(href ,(string-append *site-base-url*
"/main/push/hub"))))
(link (@ (rel "salmon")
(href ,(string-append *site-base-url*
"/main/salmon/user/" user-id-str))))))
`(feed (@ (xml:lang "en-US")
,@xmlns)
(title "timeline")
(subtitle "sub title")
(logo ,(avatar-absolutepath user))
,@(feed-headers)
,(make-author user)
,(map make-entry notices)))