admin.gno

  1package blog
  2
  3import (
  4	"chain/runtime/unsafe"
  5	"errors"
  6	"strings"
  7
  8	"gno.land/p/nt/bptree/v0"
  9	"gno.land/p/nt/ufmt/v0"
 10	"gno.land/r/gov/dao"
 11)
 12
 13var (
 14	errNotAdmin     = errors.New("access restricted: not admin")
 15	errNotModerator = errors.New("access restricted: not moderator")
 16	errNotCommenter = errors.New("access restricted: not commenter")
 17)
 18
 19var (
 20	adminAddr     = address("g1rp7cmetn27eqlpjpc4vuusf8kaj746tysc0qgh") // govdao t1 multisig
 21	moderatorList = bptree.NewBPTree32()
 22	commenterList = bptree.NewBPTree32()
 23	inPause       bool
 24)
 25
 26func AdminSetAdminAddr(_ realm, addr address) {
 27	assertIsAdmin()
 28	adminAddr = addr
 29}
 30
 31func AdminSetInPause(_ realm, state bool) {
 32	assertIsAdmin()
 33	inPause = state
 34}
 35
 36func AdminAddModerator(_ realm, addr address) {
 37	assertIsAdmin()
 38	moderatorList.Set(addr.String(), true)
 39}
 40
 41func AdminRemoveModerator(_ realm, addr address) {
 42	assertIsAdmin()
 43	moderatorList.Set(addr.String(), false) // entry kept as a revocation record; isModerator checks the value
 44}
 45
 46func NewPostProposalRequest(cur realm, slug, title, body, publicationDate, authors, tags string) dao.ProposalRequest {
 47	caller := cur.Previous().Address()
 48	e := dao.NewSimpleExecutor(0, cur,
 49		func(realm) error {
 50			addPost(caller, slug, title, body, publicationDate, authors, tags)
 51
 52			return nil
 53		},
 54		ufmt.Sprintf("- Post Title: %v\n- Post Publication Date: %v\n- Authors: %v\n- Tags: %v", title, publicationDate, authors, tags),
 55	)
 56
 57	return dao.NewProposalRequest(
 58		"Add new post to gnoland blog",
 59		"This propoposal is looking to add a new post to gnoland blog",
 60		e,
 61	)
 62}
 63
 64func ModAddPost(_ realm, slug, title, body, publicationDate, authors, tags string) {
 65	assertIsModerator()
 66	caller := unsafe.OriginCaller()
 67	addPost(caller, slug, title, body, publicationDate, authors, tags)
 68}
 69
 70func addPost(caller address, slug, title, body, publicationDate, authors, tags string) {
 71	var tagList []string
 72	if tags != "" {
 73		tagList = strings.Split(tags, ",")
 74	}
 75	var authorList []string
 76	if authors != "" {
 77		authorList = strings.Split(authors, ",")
 78	}
 79
 80	err := b.NewPost(caller, slug, title, body, publicationDate, authorList, tagList)
 81
 82	checkErr(err)
 83}
 84
 85func ModEditPost(_ realm, slug, title, body, publicationDate, authors, tags string) {
 86	assertIsModerator()
 87	tagList := strings.Split(tags, ",")
 88	authorList := strings.Split(authors, ",")
 89
 90	err := b.GetPost(slug).Update(title, body, publicationDate, authorList, tagList)
 91	checkErr(err)
 92}
 93
 94func ModRemovePost(_ realm, slug string) {
 95	assertIsModerator()
 96	b.RemovePost(slug)
 97}
 98
 99func ModAddCommenter(_ realm, addr address) {
100	assertIsModerator()
101	commenterList.Set(addr.String(), true)
102}
103
104func ModDelCommenter(_ realm, addr address) {
105	assertIsModerator()
106	commenterList.Set(addr.String(), false) // entry kept as a revocation record; isCommenter checks the value
107}
108
109func ModDelComment(_ realm, slug string, index int) {
110	assertIsModerator()
111	err := b.GetPost(slug).DeleteComment(index)
112	checkErr(err)
113}
114
115func isAdmin(addr address) bool {
116	return addr == adminAddr
117}
118
119func isModerator(addr address) bool {
120	// Removed moderators stay in the list with a false value, so the
121	// stored value must be checked, not just key presence.
122	active, _ := moderatorList.Get(addr.String()).(bool)
123	return active
124}
125
126func isCommenter(addr address) bool {
127	// Removed commenters stay in the list with a false value, so the
128	// stored value must be checked, not just key presence.
129	active, _ := commenterList.Get(addr.String()).(bool)
130	return active
131}
132
133func assertIsAdmin() {
134	caller := unsafe.OriginCaller()
135	if !isAdmin(caller) {
136		panic(errNotAdmin.Error())
137	}
138}
139
140func assertIsModerator() {
141	caller := unsafe.OriginCaller()
142	if isAdmin(caller) || isModerator(caller) {
143		return
144	}
145	panic(errNotModerator.Error())
146}
147
148func assertIsCommenter() {
149	caller := unsafe.OriginCaller()
150	if isAdmin(caller) || isModerator(caller) || isCommenter(caller) {
151		return
152	}
153	panic(errNotCommenter.Error())
154}
155
156func assertNotInPause() {
157	if inPause {
158		panic("access restricted (pause)")
159	}
160}