| 1 | package soju
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| 2 |
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| 3 | import (
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| 4 | "database/sql"
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| 5 | "errors"
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| 6 | "fmt"
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| 7 | "math"
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| 8 | "strings"
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| 9 | "time"
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| 10 |
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| 11 | _ "github.com/lib/pq"
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| 12 | )
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| 13 |
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| 14 | const postgresConfigSchema = `
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| 15 | CREATE TABLE IF NOT EXISTS "Config" (
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| 16 | id SMALLINT PRIMARY KEY,
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| 17 | version INTEGER NOT NULL,
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| 18 | CHECK(id = 1)
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| 19 | );
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| 20 | `
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| 21 |
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| 22 | const postgresSchema = `
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| 23 | CREATE TABLE "User" (
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| 24 | id SERIAL PRIMARY KEY,
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| 25 | username VARCHAR(255) NOT NULL UNIQUE,
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| 26 | password VARCHAR(255),
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| 27 | admin BOOLEAN NOT NULL DEFAULT FALSE,
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| 28 | realname VARCHAR(255)
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| 29 | );
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| 30 |
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| 31 | CREATE TABLE "Network" (
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| 32 | id SERIAL PRIMARY KEY,
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| 33 | name VARCHAR(255),
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| 34 | "user" INTEGER NOT NULL REFERENCES "User"(id) ON DELETE CASCADE,
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| 35 | addr VARCHAR(255) NOT NULL,
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| 36 | nick VARCHAR(255) NOT NULL,
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| 37 | username VARCHAR(255),
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| 38 | realname VARCHAR(255),
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| 39 | pass VARCHAR(255),
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| 40 | connect_commands VARCHAR(1023),
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| 41 | sasl_mechanism VARCHAR(255),
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| 42 | sasl_plain_username VARCHAR(255),
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| 43 | sasl_plain_password VARCHAR(255),
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| 44 | sasl_external_cert BYTEA,
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| 45 | sasl_external_key BYTEA,
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| 46 | enabled BOOLEAN NOT NULL DEFAULT TRUE,
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| 47 | UNIQUE("user", addr, nick),
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| 48 | UNIQUE("user", name)
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| 49 | );
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| 50 |
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| 51 | CREATE TABLE "Channel" (
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| 52 | id SERIAL PRIMARY KEY,
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| 53 | network INTEGER NOT NULL REFERENCES "Network"(id) ON DELETE CASCADE,
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| 54 | name VARCHAR(255) NOT NULL,
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| 55 | key VARCHAR(255),
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| 56 | detached BOOLEAN NOT NULL DEFAULT FALSE,
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| 57 | detached_internal_msgid VARCHAR(255),
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| 58 | relay_detached INTEGER NOT NULL DEFAULT 0,
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| 59 | reattach_on INTEGER NOT NULL DEFAULT 0,
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| 60 | detach_after INTEGER NOT NULL DEFAULT 0,
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| 61 | detach_on INTEGER NOT NULL DEFAULT 0,
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| 62 | UNIQUE(network, name)
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| 63 | );
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| 64 |
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| 65 | CREATE TABLE "DeliveryReceipt" (
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| 66 | id SERIAL PRIMARY KEY,
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| 67 | network INTEGER NOT NULL REFERENCES "Network"(id) ON DELETE CASCADE,
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| 68 | target VARCHAR(255) NOT NULL,
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| 69 | client VARCHAR(255) NOT NULL DEFAULT '',
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| 70 | internal_msgid VARCHAR(255) NOT NULL,
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| 71 | UNIQUE(network, target, client)
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| 72 | );
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| 73 | `
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| 74 |
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| 75 | var postgresMigrations = []string{
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| 76 | "", // migration #0 is reserved for schema initialization
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| 77 | }
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| 78 |
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| 79 | type PostgresDB struct {
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| 80 | db *sql.DB
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| 81 | }
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| 82 |
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| 83 | func OpenPostgresDB(source string) (Database, error) {
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| 84 | sqlPostgresDB, err := sql.Open("postgres", source)
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| 85 | if err != nil {
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| 86 | return nil, err
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| 87 | }
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| 88 |
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| 89 | db := &PostgresDB{db: sqlPostgresDB}
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| 90 | if err := db.upgrade(); err != nil {
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| 91 | sqlPostgresDB.Close()
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| 92 | return nil, err
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| 93 | }
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| 94 |
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| 95 | return db, nil
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| 96 | }
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| 97 |
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| 98 | func (db *PostgresDB) upgrade() error {
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| 99 | tx, err := db.db.Begin()
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| 100 | if err != nil {
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| 101 | return err
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| 102 | }
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| 103 | defer tx.Rollback()
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| 104 |
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| 105 | if _, err := tx.Exec(postgresConfigSchema); err != nil {
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| 106 | return fmt.Errorf("failed to create Config table: %s", err)
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| 107 | }
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| 108 |
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| 109 | var version int
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| 110 | err = tx.QueryRow(`SELECT version FROM "Config"`).Scan(&version)
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| 111 | if err != nil && !errors.Is(err, sql.ErrNoRows) {
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| 112 | return fmt.Errorf("failed to query schema version: %s", err)
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| 113 | }
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| 114 |
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| 115 | if version == len(postgresMigrations) {
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| 116 | return nil
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| 117 | }
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| 118 | if version > len(postgresMigrations) {
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| 119 | return fmt.Errorf("soju (version %d) older than schema (version %d)", len(postgresMigrations), version)
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| 120 | }
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| 121 |
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| 122 | if version == 0 {
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| 123 | if _, err := tx.Exec(postgresSchema); err != nil {
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| 124 | return fmt.Errorf("failed to initialize schema: %s", err)
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| 125 | }
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| 126 | } else {
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| 127 | for i := version; i < len(postgresMigrations); i++ {
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| 128 | if _, err := tx.Exec(postgresMigrations[i]); err != nil {
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| 129 | return fmt.Errorf("failed to execute migration #%v: %v", i, err)
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| 130 | }
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| 131 | }
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| 132 | }
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| 133 |
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| 134 | _, err = tx.Exec(`INSERT INTO "Config" (id, version) VALUES (1, $1)
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| 135 | ON CONFLICT (id) DO UPDATE SET version = $1`, len(postgresMigrations))
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| 136 | if err != nil {
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| 137 | return fmt.Errorf("failed to bump schema version: %v", err)
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| 138 | }
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| 139 |
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| 140 | return tx.Commit()
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| 141 | }
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| 142 |
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| 143 | func (db *PostgresDB) Close() error {
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| 144 | return db.db.Close()
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| 145 | }
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| 146 |
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| 147 | func (db *PostgresDB) Stats() (*DatabaseStats, error) {
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| 148 | var stats DatabaseStats
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| 149 | row := db.db.QueryRow(`SELECT
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| 150 | (SELECT COUNT(*) FROM "User") AS users,
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| 151 | (SELECT COUNT(*) FROM "Network") AS networks,
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| 152 | (SELECT COUNT(*) FROM "Channel") AS channels`)
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| 153 | if err := row.Scan(&stats.Users, &stats.Networks, &stats.Channels); err != nil {
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| 154 | return nil, err
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| 155 | }
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| 156 |
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| 157 | return &stats, nil
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| 158 | }
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| 159 |
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| 160 | func (db *PostgresDB) ListUsers() ([]User, error) {
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| 161 | rows, err := db.db.Query(`SELECT id, username, password, admin, realname FROM "User"`)
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| 162 | if err != nil {
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| 163 | return nil, err
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| 164 | }
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| 165 | defer rows.Close()
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| 166 |
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| 167 | var users []User
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| 168 | for rows.Next() {
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| 169 | var user User
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| 170 | var password, realname sql.NullString
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| 171 | if err := rows.Scan(&user.ID, &user.Username, &password, &user.Admin, &realname); err != nil {
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| 172 | return nil, err
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| 173 | }
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| 174 | user.Password = password.String
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| 175 | user.Realname = realname.String
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| 176 | users = append(users, user)
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| 177 | }
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| 178 | if err := rows.Err(); err != nil {
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| 179 | return nil, err
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| 180 | }
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| 181 |
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| 182 | return users, nil
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| 183 | }
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| 184 |
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| 185 | func (db *PostgresDB) GetUser(username string) (*User, error) {
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| 186 | user := &User{Username: username}
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| 187 |
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| 188 | var password, realname sql.NullString
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| 189 | row := db.db.QueryRow(
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| 190 | `SELECT id, password, admin, realname FROM "User" WHERE username = $1`,
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| 191 | username)
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| 192 | if err := row.Scan(&user.ID, &password, &user.Admin, &realname); err != nil {
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| 193 | return nil, err
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| 194 | }
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| 195 | user.Password = password.String
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| 196 | user.Realname = realname.String
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| 197 | return user, nil
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| 198 | }
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| 199 |
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| 200 | func (db *PostgresDB) StoreUser(user *User) error {
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| 201 | password := toNullString(user.Password)
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| 202 | realname := toNullString(user.Realname)
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| 203 |
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| 204 | var err error
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| 205 | if user.ID == 0 {
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| 206 | err = db.db.QueryRow(`
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| 207 | INSERT INTO "User" (username, password, admin, realname)
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| 208 | VALUES ($1, $2, $3, $4)
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| 209 | RETURNING id`,
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| 210 | user.Username, password, user.Admin, realname).Scan(&user.ID)
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| 211 | } else {
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| 212 | _, err = db.db.Exec(`
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| 213 | UPDATE "User"
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| 214 | SET password = $1, admin = $2, realname = $3
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| 215 | WHERE id = $4`,
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| 216 | password, user.Admin, realname, user.ID)
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| 217 | }
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| 218 | return err
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| 219 | }
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| 220 |
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| 221 | func (db *PostgresDB) DeleteUser(id int64) error {
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| 222 | _, err := db.db.Exec(`DELETE FROM "User" WHERE id = $1`, id)
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| 223 | return err
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| 224 | }
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| 225 |
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| 226 | func (db *PostgresDB) ListNetworks(userID int64) ([]Network, error) {
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| 227 | rows, err := db.db.Query(`
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| 228 | SELECT id, name, addr, nick, username, realname, pass, connect_commands, sasl_mechanism,
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| 229 | sasl_plain_username, sasl_plain_password, sasl_external_cert, sasl_external_key, enabled
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| 230 | FROM "Network"
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| 231 | WHERE "user" = $1`, userID)
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| 232 | if err != nil {
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| 233 | return nil, err
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| 234 | }
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| 235 | defer rows.Close()
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| 236 |
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| 237 | var networks []Network
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| 238 | for rows.Next() {
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| 239 | var net Network
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| 240 | var name, username, realname, pass, connectCommands sql.NullString
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| 241 | var saslMechanism, saslPlainUsername, saslPlainPassword sql.NullString
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| 242 | err := rows.Scan(&net.ID, &name, &net.Addr, &net.Nick, &username, &realname,
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| 243 | &pass, &connectCommands, &saslMechanism, &saslPlainUsername, &saslPlainPassword,
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| 244 | &net.SASL.External.CertBlob, &net.SASL.External.PrivKeyBlob, &net.Enabled)
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| 245 | if err != nil {
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| 246 | return nil, err
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| 247 | }
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| 248 | net.Name = name.String
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| 249 | net.Username = username.String
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| 250 | net.Realname = realname.String
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| 251 | net.Pass = pass.String
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| 252 | if connectCommands.Valid {
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| 253 | net.ConnectCommands = strings.Split(connectCommands.String, "\r\n")
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| 254 | }
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| 255 | net.SASL.Mechanism = saslMechanism.String
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| 256 | net.SASL.Plain.Username = saslPlainUsername.String
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| 257 | net.SASL.Plain.Password = saslPlainPassword.String
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| 258 | networks = append(networks, net)
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| 259 | }
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| 260 | if err := rows.Err(); err != nil {
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| 261 | return nil, err
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| 262 | }
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| 263 |
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| 264 | return networks, nil
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| 265 | }
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| 266 |
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| 267 | func (db *PostgresDB) StoreNetwork(userID int64, network *Network) error {
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| 268 | netName := toNullString(network.Name)
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| 269 | netUsername := toNullString(network.Username)
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| 270 | realname := toNullString(network.Realname)
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| 271 | pass := toNullString(network.Pass)
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| 272 | connectCommands := toNullString(strings.Join(network.ConnectCommands, "\r\n"))
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| 273 |
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| 274 | var saslMechanism, saslPlainUsername, saslPlainPassword sql.NullString
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| 275 | if network.SASL.Mechanism != "" {
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| 276 | saslMechanism = toNullString(network.SASL.Mechanism)
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| 277 | switch network.SASL.Mechanism {
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| 278 | case "PLAIN":
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| 279 | saslPlainUsername = toNullString(network.SASL.Plain.Username)
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| 280 | saslPlainPassword = toNullString(network.SASL.Plain.Password)
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| 281 | network.SASL.External.CertBlob = nil
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| 282 | network.SASL.External.PrivKeyBlob = nil
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| 283 | case "EXTERNAL":
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| 284 | // keep saslPlain* nil
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| 285 | default:
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| 286 | return fmt.Errorf("soju: cannot store network: unsupported SASL mechanism %q", network.SASL.Mechanism)
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| 287 | }
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| 288 | }
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| 289 |
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| 290 | var err error
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| 291 | if network.ID == 0 {
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| 292 | err = db.db.QueryRow(`
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| 293 | INSERT INTO "Network" ("user", name, addr, nick, username, realname, pass, connect_commands,
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| 294 | sasl_mechanism, sasl_plain_username, sasl_plain_password, sasl_external_cert,
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| 295 | sasl_external_key, enabled)
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| 296 | VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14)
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| 297 | RETURNING id`,
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| 298 | userID, netName, network.Addr, network.Nick, netUsername, realname, pass, connectCommands,
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| 299 | saslMechanism, saslPlainUsername, saslPlainPassword, network.SASL.External.CertBlob,
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| 300 | network.SASL.External.PrivKeyBlob, network.Enabled).Scan(&network.ID)
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| 301 | } else {
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| 302 | _, err = db.db.Exec(`
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| 303 | UPDATE "Network"
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| 304 | SET name = $2, addr = $3, nick = $4, username = $5, realname = $6, pass = $7,
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| 305 | connect_commands = $8, sasl_mechanism = $9, sasl_plain_username = $10,
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| 306 | sasl_plain_password = $11, sasl_external_cert = $12, sasl_external_key = $13,
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| 307 | enabled = $14
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| 308 | WHERE id = $1`,
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| 309 | network.ID, netName, network.Addr, network.Nick, netUsername, realname, pass, connectCommands,
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| 310 | saslMechanism, saslPlainUsername, saslPlainPassword, network.SASL.External.CertBlob,
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| 311 | network.SASL.External.PrivKeyBlob, network.Enabled)
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| 312 | }
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| 313 | return err
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| 314 | }
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| 315 |
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| 316 | func (db *PostgresDB) DeleteNetwork(id int64) error {
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| 317 | _, err := db.db.Exec(`DELETE FROM "Network" WHERE id = $1`, id)
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| 318 | return err
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| 319 | }
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| 320 |
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| 321 | func (db *PostgresDB) ListChannels(networkID int64) ([]Channel, error) {
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| 322 | rows, err := db.db.Query(`
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| 323 | SELECT id, name, key, detached, detached_internal_msgid, relay_detached, reattach_on, detach_after,
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| 324 | detach_on
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| 325 | FROM "Channel"
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| 326 | WHERE network = $1`, networkID)
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| 327 | if err != nil {
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| 328 | return nil, err
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| 329 | }
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| 330 | defer rows.Close()
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| 331 |
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| 332 | var channels []Channel
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| 333 | for rows.Next() {
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| 334 | var ch Channel
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| 335 | var key, detachedInternalMsgID sql.NullString
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| 336 | var detachAfter int64
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| 337 | if err := rows.Scan(&ch.ID, &ch.Name, &key, &ch.Detached, &detachedInternalMsgID, &ch.RelayDetached, &ch.ReattachOn, &detachAfter, &ch.DetachOn); err != nil {
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| 338 | return nil, err
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| 339 | }
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| 340 | ch.Key = key.String
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| 341 | ch.DetachedInternalMsgID = detachedInternalMsgID.String
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| 342 | ch.DetachAfter = time.Duration(detachAfter) * time.Second
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| 343 | channels = append(channels, ch)
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| 344 | }
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| 345 | if err := rows.Err(); err != nil {
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| 346 | return nil, err
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| 347 | }
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| 348 |
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| 349 | return channels, nil
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| 350 | }
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| 351 |
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| 352 | func (db *PostgresDB) StoreChannel(networkID int64, ch *Channel) error {
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| 353 | key := toNullString(ch.Key)
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| 354 | detachAfter := int64(math.Ceil(ch.DetachAfter.Seconds()))
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| 355 |
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| 356 | var err error
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| 357 | if ch.ID == 0 {
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| 358 | err = db.db.QueryRow(`
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| 359 | INSERT INTO "Channel" (network, name, key, detached, detached_internal_msgid, relay_detached, reattach_on,
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| 360 | detach_after, detach_on)
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| 361 | VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9)
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| 362 | RETURNING id`,
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| 363 | networkID, ch.Name, key, ch.Detached, toNullString(ch.DetachedInternalMsgID),
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| 364 | ch.RelayDetached, ch.ReattachOn, detachAfter, ch.DetachOn).Scan(&ch.ID)
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| 365 | } else {
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| 366 | _, err = db.db.Exec(`
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| 367 | UPDATE "Channel"
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| 368 | SET name = $2, key = $3, detached = $4, detached_internal_msgid = $5,
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| 369 | relay_detached = $6, reattach_on = $7, detach_after = $8, detach_on = $9
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| 370 | WHERE id = $1`,
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| 371 | ch.ID, ch.Name, key, ch.Detached, toNullString(ch.DetachedInternalMsgID),
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| 372 | ch.RelayDetached, ch.ReattachOn, detachAfter, ch.DetachOn)
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| 373 | }
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| 374 | return err
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| 375 | }
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| 376 |
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| 377 | func (db *PostgresDB) DeleteChannel(id int64) error {
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| 378 | _, err := db.db.Exec(`DELETE FROM "Channel" WHERE id = $1`, id)
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| 379 | return err
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| 380 | }
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| 381 |
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| 382 | func (db *PostgresDB) ListDeliveryReceipts(networkID int64) ([]DeliveryReceipt, error) {
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| 383 | rows, err := db.db.Query(`
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| 384 | SELECT id, target, client, internal_msgid
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| 385 | FROM "DeliveryReceipt"
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| 386 | WHERE network = $1`, networkID)
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| 387 | if err != nil {
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| 388 | return nil, err
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| 389 | }
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| 390 | defer rows.Close()
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| 391 |
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| 392 | var receipts []DeliveryReceipt
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| 393 | for rows.Next() {
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| 394 | var rcpt DeliveryReceipt
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| 395 | if err := rows.Scan(&rcpt.ID, &rcpt.Target, &rcpt.Client, &rcpt.InternalMsgID); err != nil {
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| 396 | return nil, err
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| 397 | }
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| 398 | receipts = append(receipts, rcpt)
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| 399 | }
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|---|
| 400 | if err := rows.Err(); err != nil {
|
|---|
| 401 | return nil, err
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| 402 | }
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| 403 |
|
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| 404 | return receipts, nil
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|---|
| 405 | }
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|---|
| 406 |
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| 407 | func (db *PostgresDB) StoreClientDeliveryReceipts(networkID int64, client string, receipts []DeliveryReceipt) error {
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| 408 | tx, err := db.db.Begin()
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|---|
| 409 | if err != nil {
|
|---|
| 410 | return err
|
|---|
| 411 | }
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|---|
| 412 | defer tx.Rollback()
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|---|
| 413 |
|
|---|
| 414 | _, err = tx.Exec(`DELETE FROM "DeliveryReceipt" WHERE network = $1 AND client = $2`,
|
|---|
| 415 | networkID, client)
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|---|
| 416 | if err != nil {
|
|---|
| 417 | return err
|
|---|
| 418 | }
|
|---|
| 419 |
|
|---|
| 420 | stmt, err := tx.Prepare(`
|
|---|
| 421 | INSERT INTO "DeliveryReceipt" (network, target, client, internal_msgid)
|
|---|
| 422 | VALUES ($1, $2, $3, $4)
|
|---|
| 423 | RETURNING id`)
|
|---|
| 424 | if err != nil {
|
|---|
| 425 | return err
|
|---|
| 426 | }
|
|---|
| 427 | defer stmt.Close()
|
|---|
| 428 |
|
|---|
| 429 | for i := range receipts {
|
|---|
| 430 | rcpt := &receipts[i]
|
|---|
| 431 | err := stmt.QueryRow(networkID, rcpt.Target, client, rcpt.InternalMsgID).Scan(&rcpt.ID)
|
|---|
| 432 | if err != nil {
|
|---|
| 433 | return err
|
|---|
| 434 | }
|
|---|
| 435 | }
|
|---|
| 436 |
|
|---|
| 437 | return tx.Commit()
|
|---|
| 438 | }
|
|---|
