groundwork for conferences - new data structure and security definitions

database/community.go

@@ -560,13 +560,12 @@ func (c *Community) TouchUpdate() error {
  *     Standard Go error status
  */
 func AmGetCommunity(id int32) (*Community, error) {
-	var err error = nil
 	getCommunityMutex.Lock()
 	defer getCommunityMutex.Unlock()
 	rc, ok := communityCache.Get(id)
 	if !ok {
 		var dbdata []Community
-		err = amdb.Select(&dbdata, "SELECT * from communities WHERE commid = ?", id)
+		err := amdb.Select(&dbdata, "SELECT * from communities WHERE commid = ?", id)
 		if err != nil {
 			return nil, err
 		}
@@ -578,7 +577,7 @@ func AmGetCommunity(id int32) (*Community, error) {
 		rc = &(dbdata[0])
 		communityCache.Add(id, rc)
 	}
-	return rc.(*Community), err
+	return rc.(*Community), nil
 }
 
 /* AmGetCommunityByAlias returns a reference to the specified community.

database/conference.go

@@ -0,0 +1,137 @@
+/*
+ * Amsterdam Web Communities System
+ * Copyright (c) 2025 Erbosoft Metaverse Design Solutions, All Rights Reserved
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
+// The database package contains database management and storage logic.
+package database
+
+import (
+	"fmt"
+	"sync"
+	"time"
+
+	lru "github.com/hashicorp/golang-lru"
+)
+
+// Conference struct is the top-level structure for a conference.
+type Conference struct {
+	ConfId      int32      `db:"confid"`
+	CreateDate  time.Time  `db:"createdate"`
+	LastUpdate  *time.Time `db:"lastupdate"`
+	ReadLevel   uint16     `db:"read_lvl"`
+	PostLevel   uint16     `db:"post_lvl"`
+	CreateLevel uint16     `db:"create_lvl"`
+	HideLevel   uint16     `db:"hide_lvl"`
+	NukeLevel   uint16     `db:"nuke_lvl"`
+	ChangeLevel uint16     `db:"change_level"`
+	DeleteLevel uint16     `db:"delete_level"`
+	TopTopic    int16      `db:"top_topic"`
+	Name        string     `db:"name"`
+	Description *string    `db:"descr"`
+	IconUrl     *string    `db:"icon_url"`
+	Color       *string    `db:"color"`
+}
+
+// conferenceCache is the cache for Conference objects.
+var conferenceCache *lru.TwoQueueCache = nil
+
+// getCommunityMutex is a mutex on AmGetCommunity.
+var getConferenceMutex sync.Mutex
+
+// conferenceAliasMap stores alias mappings.
+var conferenceAliasMap sync.Map
+
+// init initializes the conference cache.
+func init() {
+	var err error
+	conferenceCache, err = lru.New2Q(100)
+	if err != nil {
+		panic(err)
+	}
+}
+
+/* AmGetConference returns a conference given its ID.
+ * Parameters:
+ *     id - The ID of the conference.
+ * Returns:
+ *     Pointer to the conference, or nil.
+ *     Standard Go error status.
+ */
+func AmGetConference(id int32) (*Conference, error) {
+	var err error = nil
+	getConferenceMutex.Lock()
+	defer getConferenceMutex.Unlock()
+	rc, ok := conferenceCache.Get(id)
+	if !ok {
+		var dbdata []Conference
+		err = amdb.Select(&dbdata, "SELECT * from confs where confid = ?", id)
+		if err != nil {
+			return nil, err
+		}
+		if len(dbdata) == 0 {
+			return nil, fmt.Errorf("conference with ID %d not found", id)
+		} else if len(dbdata) > 1 {
+			return nil, fmt.Errorf("AmGetConference(%d): too many responses(%d)", id, len(dbdata))
+		}
+		rc = &(dbdata[0])
+		conferenceCache.Add(id, rc)
+	}
+	return rc.(*Conference), err
+}
+
+/* AmGetConferenceByAlias returns a conference given its alias.
+ * Parameters:
+ *     alias - The alias to look up.
+ * Returns:
+ *     Pointer to the conference, or nil.
+ *     Standard Go error status.
+ */
+func AmGetConferenceByAlias(alias string) (*Conference, error) {
+	confid, ok := conferenceAliasMap.Load(alias)
+	if !ok {
+		rs, err := amdb.Query("SELECT confid FROM confalias WHERE alias = ?", alias)
+		if err != nil {
+			return nil, err
+		}
+		if !rs.Next() {
+			return nil, fmt.Errorf("alias not found: %s", alias)
+		}
+		rs.Scan(&confid)
+		conferenceAliasMap.Store(alias, confid)
+	}
+	return AmGetConference(int32(confid.(int)))
+}
+
+/* AmGetCommunityConferences returns all conferences for a given community.
+ * Parameters:
+ *     cid - COmmunity ID to get conferences for.
+ *     showHidden - true to show hidden conferences.
+ * Returns:
+ *     Array containing the COnference pointers, or nil.
+ *     Stanbard Go error status.
+ */
+func AmGetCommunityConferences(cid int32, showHidden bool) ([]*Conference, error) {
+	q := ""
+	if !showHidden {
+		q = " AND x.hide_list = 0"
+	}
+	rs, err := amdb.Query(`SELECT x.confid FROM commtoconf x, confs c WHERE x.confid = c.confid
+		AND x.commid = ?`+q+" ORDER BY x.sequence, c.name", cid)
+	if err != nil {
+		return nil, err
+	}
+	rc := make([]*Conference, 0, 6)
+	for rs.Next() {
+		var confid int32
+		rs.Scan(&confid)
+		conf, err := AmGetConference(confid)
+		if err == nil {
+			rc = append(rc, conf)
+		}
+	}
+	return rc, nil
+}

database/securitydefs.yaml

@@ -11,6 +11,8 @@ scopes:
     index: 0
   - name: Community
     index: 1
+  - name: Conference
+    index: 2
 roles:
   - name: "NotInList"
     display: "Not In List"
@@ -64,6 +66,18 @@ roles:
     display: "Community Host"
     scope: Community
     value: "H+1500"
+  - name: "Conference.Member"
+    display: "Conference Member"
+    scope: Conference
+    value: "L+500"
+  - name: "Conference.AnyAdmin"
+    display: "Any Conference Administrator"
+    scope: Conference
+    value: "HMIN"
+  - name: "Conference.Host"
+    display: "Conference Host"
+    scope: Conference
+    value: "H+1500"
 defaults:
   - name: "Global.NewUser"
     role: "Global.Unverified"
@@ -75,6 +89,26 @@ defaults:
     role: "Community.Member"
   - name: "Community.Creator"
     role: "Community.Host"
+  - name: "Conference.HostPrivs"
+    role: "Conference.AnyAdmin"
+  - name: "Conference.NewUser"
+    role: "Conference.Member"
+  - name: "Conference.NewHost"
+    role: "Conference.Host"
+  - name: "Conference.Creator"
+    role: "Conference.Host"
+  - name: "Conference.Read.Public"
+    role: "Community.Member"
+  - name: "Conference.Read.Private"
+    role: "Conference.Member"
+  - name: "Conference.Post.Public"
+    role: "Community.Member"
+  - name: "Conference.Post.Private"
+    role: "Conference.Member"
+  - name: "Conference.Create.Public"
+    role: "Community.Member"
+  - name: "Conference.Create.Private"
+    role: "Conference.Member"
 lists:
   - name: "Global.UserLevels"
     roles:
@@ -153,6 +187,81 @@ lists:
       - "Community.Member"
       - "UnrestrictedUser"
       - "Community.Cohost"
+  - name: "Conference.Read"
+    roles:
+      - "Global.Anonymous"
+      - "Global.Unverified"
+      - "Global.Normal"
+      - "Community.Member"
+      - "Conference.Member"
+      - "UnrestrictedUser"
+  - name: "Conference.Post"
+    roles:
+      - "Global.Anonymous"
+      - "Global.Unverified"
+      - "Global.Normal"
+      - "Community.Member"
+      - "Conference.Member"
+      - "UnrestrictedUser"
+      - "Conference.AnyAdmin"
+      - "Conference.Host"
+  - name: "Conference.Create"
+    roles:
+      - "Global.Anonymous"
+      - "Global.Unverified"
+      - "Global.Normal"
+      - "Community.Member"
+      - "Conference.Member"
+      - "UnrestrictedUser"
+      - "Conference.AnyAdmin"
+      - "Conference.Host"
+  - name: "Conference.Hide"
+    default: "Conference.Host"
+    roles:
+      - "Conference.AnyAdmin"
+      - "Conference.Host"
+      - "Community.AnyAdmin"
+      - "Community.Cohost"
+      - "Community.Host"
+      - "Global.AnyAdmin"
+  - name: "Conference.Nuke"
+    default: "Conference.Host"
+    roles:
+      - "Conference.AnyAdmin"
+      - "Conference.Host"
+      - "Community.AnyAdmin"
+      - "Community.Cohost"
+      - "Community.Host"
+      - "Global.AnyAdmin"
+  - name: "Conference.Change"
+    default: "Conference.Host"
+    roles:
+      - "Conference.AnyAdmin"
+      - "Conference.Host"
+      - "Community.AnyAdmin"
+      - "Community.Cohost"
+      - "Community.Host"
+      - "Global.AnyAdmin"
+  - name: "Conference.Delete"
+    default: "Community.Cohost"
+    roles:
+      - "Community.AnyAdmin"
+      - "Community.Cohost"
+      - "Community.Host"
+      - "Global.AnyAdmin"
+      - "Global.PFY"
+      - "Global.BOFH"
+      - "NoAccess"
+  - name: "Conference.UserLevels"
+    roles:
+      - "NotInList"
+      - "Global.Anonymous"
+      - "Global.Unverified"
+      - "Global.Normal"
+      - "Community.Member"
+      - "Conference.Member"
+      - "UnrestrictedUser"
+      - "Conference.Host"
 permissions:
   - name: "Global.ShowHiddenCategories"
     role: "Global.AnyAdmin"
@@ -184,3 +293,5 @@ permissions:
     role: "Community.AnyAdmin"
   - name: "Community.MassMail"
     role: "Community.AnyAdmin"
+  - name: "Conference.EMailParticipants"
+    role: "Conference.AnyAdmin"