| 1 | package soju
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| 2 |
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| 3 | import (
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| 4 | "context"
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| 5 | "database/sql"
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| 6 | "errors"
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| 7 | "fmt"
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| 8 | "math"
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| 9 | "strings"
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| 10 | "time"
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| 11 |
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| 12 | _ "github.com/lib/pq"
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| 13 | "github.com/prometheus/client_golang/prometheus"
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| 14 | promcollectors "github.com/prometheus/client_golang/prometheus/collectors"
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| 15 | )
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| 16 |
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| 17 | const postgresQueryTimeout = 5 * time.Second
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| 18 |
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| 19 | const postgresConfigSchema = `
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| 20 | CREATE TABLE IF NOT EXISTS "Config" (
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| 21 | id SMALLINT PRIMARY KEY,
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| 22 | version INTEGER NOT NULL,
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| 23 | CHECK(id = 1)
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| 24 | );
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| 25 | `
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| 26 |
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| 27 | const postgresSchema = `
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| 28 | CREATE TABLE "User" (
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| 29 | id SERIAL PRIMARY KEY,
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| 30 | username VARCHAR(255) NOT NULL UNIQUE,
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| 31 | password VARCHAR(255),
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| 32 | admin BOOLEAN NOT NULL DEFAULT FALSE,
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| 33 | realname VARCHAR(255)
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| 34 | );
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| 35 |
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| 36 | CREATE TYPE sasl_mechanism AS ENUM ('PLAIN', 'EXTERNAL');
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| 37 |
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| 38 | CREATE TABLE "Network" (
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| 39 | id SERIAL PRIMARY KEY,
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| 40 | name VARCHAR(255),
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| 41 | "user" INTEGER NOT NULL REFERENCES "User"(id) ON DELETE CASCADE,
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| 42 | addr VARCHAR(255) NOT NULL,
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| 43 | nick VARCHAR(255),
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| 44 | username VARCHAR(255),
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| 45 | realname VARCHAR(255),
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| 46 | pass VARCHAR(255),
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| 47 | connect_commands VARCHAR(1023),
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| 48 | sasl_mechanism sasl_mechanism,
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| 49 | sasl_plain_username VARCHAR(255),
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| 50 | sasl_plain_password VARCHAR(255),
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| 51 | sasl_external_cert BYTEA,
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| 52 | sasl_external_key BYTEA,
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| 53 | enabled BOOLEAN NOT NULL DEFAULT TRUE,
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| 54 | UNIQUE("user", addr, nick),
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| 55 | UNIQUE("user", name)
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| 56 | );
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| 57 |
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| 58 | CREATE TABLE "Channel" (
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| 59 | id SERIAL PRIMARY KEY,
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| 60 | network INTEGER NOT NULL REFERENCES "Network"(id) ON DELETE CASCADE,
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| 61 | name VARCHAR(255) NOT NULL,
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| 62 | key VARCHAR(255),
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| 63 | detached BOOLEAN NOT NULL DEFAULT FALSE,
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| 64 | detached_internal_msgid VARCHAR(255),
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| 65 | relay_detached INTEGER NOT NULL DEFAULT 0,
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| 66 | reattach_on INTEGER NOT NULL DEFAULT 0,
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| 67 | detach_after INTEGER NOT NULL DEFAULT 0,
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| 68 | detach_on INTEGER NOT NULL DEFAULT 0,
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| 69 | UNIQUE(network, name)
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| 70 | );
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| 71 |
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| 72 | CREATE TABLE "DeliveryReceipt" (
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| 73 | id SERIAL PRIMARY KEY,
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| 74 | network INTEGER NOT NULL REFERENCES "Network"(id) ON DELETE CASCADE,
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| 75 | target VARCHAR(255) NOT NULL,
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| 76 | client VARCHAR(255) NOT NULL DEFAULT '',
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| 77 | internal_msgid VARCHAR(255) NOT NULL,
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| 78 | UNIQUE(network, target, client)
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| 79 | );
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| 80 | `
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| 81 |
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| 82 | var postgresMigrations = []string{
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| 83 | "", // migration #0 is reserved for schema initialization
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| 84 | `ALTER TABLE "Network" ALTER COLUMN nick DROP NOT NULL`,
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| 85 | `
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| 86 | CREATE TYPE sasl_mechanism AS ENUM ('PLAIN', 'EXTERNAL');
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| 87 | ALTER TABLE "Network"
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| 88 | ALTER COLUMN sasl_mechanism
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| 89 | TYPE sasl_mechanism
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| 90 | USING sasl_mechanism::sasl_mechanism;
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| 91 | `,
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| 92 | }
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| 93 |
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| 94 | type PostgresDB struct {
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| 95 | db *sql.DB
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| 96 | }
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| 97 |
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| 98 | func OpenPostgresDB(source string) (Database, error) {
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| 99 | sqlPostgresDB, err := sql.Open("postgres", source)
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| 100 | if err != nil {
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| 101 | return nil, err
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| 102 | }
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| 103 |
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| 104 | db := &PostgresDB{db: sqlPostgresDB}
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| 105 | if err := db.upgrade(); err != nil {
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| 106 | sqlPostgresDB.Close()
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| 107 | return nil, err
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| 108 | }
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| 109 |
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| 110 | return db, nil
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| 111 | }
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| 112 |
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| 113 | func (db *PostgresDB) upgrade() error {
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| 114 | tx, err := db.db.Begin()
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| 115 | if err != nil {
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| 116 | return err
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| 117 | }
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| 118 | defer tx.Rollback()
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| 119 |
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| 120 | if _, err := tx.Exec(postgresConfigSchema); err != nil {
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| 121 | return fmt.Errorf("failed to create Config table: %s", err)
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| 122 | }
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| 123 |
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| 124 | var version int
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| 125 | err = tx.QueryRow(`SELECT version FROM "Config"`).Scan(&version)
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| 126 | if err != nil && !errors.Is(err, sql.ErrNoRows) {
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| 127 | return fmt.Errorf("failed to query schema version: %s", err)
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| 128 | }
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| 129 |
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| 130 | if version == len(postgresMigrations) {
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| 131 | return nil
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| 132 | }
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| 133 | if version > len(postgresMigrations) {
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| 134 | return fmt.Errorf("soju (version %d) older than schema (version %d)", len(postgresMigrations), version)
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| 135 | }
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| 136 |
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| 137 | if version == 0 {
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| 138 | if _, err := tx.Exec(postgresSchema); err != nil {
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| 139 | return fmt.Errorf("failed to initialize schema: %s", err)
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| 140 | }
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| 141 | } else {
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| 142 | for i := version; i < len(postgresMigrations); i++ {
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| 143 | if _, err := tx.Exec(postgresMigrations[i]); err != nil {
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| 144 | return fmt.Errorf("failed to execute migration #%v: %v", i, err)
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| 145 | }
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| 146 | }
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| 147 | }
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| 148 |
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| 149 | _, err = tx.Exec(`INSERT INTO "Config" (id, version) VALUES (1, $1)
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| 150 | ON CONFLICT (id) DO UPDATE SET version = $1`, len(postgresMigrations))
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| 151 | if err != nil {
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| 152 | return fmt.Errorf("failed to bump schema version: %v", err)
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| 153 | }
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| 154 |
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| 155 | return tx.Commit()
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| 156 | }
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| 157 |
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| 158 | func (db *PostgresDB) Close() error {
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| 159 | return db.db.Close()
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| 160 | }
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| 161 |
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| 162 | func (db *PostgresDB) MetricsCollector() prometheus.Collector {
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| 163 | return promcollectors.NewDBStatsCollector(db.db, "main")
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| 164 | }
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| 165 |
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| 166 | func (db *PostgresDB) Stats(ctx context.Context) (*DatabaseStats, error) {
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| 167 | ctx, cancel := context.WithTimeout(ctx, postgresQueryTimeout)
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| 168 | defer cancel()
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| 169 |
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| 170 | var stats DatabaseStats
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| 171 | row := db.db.QueryRowContext(ctx, `SELECT
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| 172 | (SELECT COUNT(*) FROM "User") AS users,
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| 173 | (SELECT COUNT(*) FROM "Network") AS networks,
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| 174 | (SELECT COUNT(*) FROM "Channel") AS channels`)
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| 175 | if err := row.Scan(&stats.Users, &stats.Networks, &stats.Channels); err != nil {
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| 176 | return nil, err
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| 177 | }
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| 178 |
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| 179 | return &stats, nil
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| 180 | }
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| 181 |
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| 182 | func (db *PostgresDB) ListUsers(ctx context.Context) ([]User, error) {
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| 183 | ctx, cancel := context.WithTimeout(ctx, postgresQueryTimeout)
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| 184 | defer cancel()
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| 185 |
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| 186 | rows, err := db.db.QueryContext(ctx,
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| 187 | `SELECT id, username, password, admin, realname FROM "User"`)
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| 188 | if err != nil {
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| 189 | return nil, err
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| 190 | }
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| 191 | defer rows.Close()
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| 192 |
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| 193 | var users []User
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| 194 | for rows.Next() {
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| 195 | var user User
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| 196 | var password, realname sql.NullString
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| 197 | if err := rows.Scan(&user.ID, &user.Username, &password, &user.Admin, &realname); err != nil {
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| 198 | return nil, err
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| 199 | }
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| 200 | user.Password = password.String
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| 201 | user.Realname = realname.String
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| 202 | users = append(users, user)
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| 203 | }
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| 204 | if err := rows.Err(); err != nil {
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| 205 | return nil, err
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| 206 | }
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| 207 |
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| 208 | return users, nil
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| 209 | }
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| 210 |
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| 211 | func (db *PostgresDB) GetUser(ctx context.Context, username string) (*User, error) {
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| 212 | ctx, cancel := context.WithTimeout(ctx, postgresQueryTimeout)
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| 213 | defer cancel()
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| 214 |
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| 215 | user := &User{Username: username}
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| 216 |
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| 217 | var password, realname sql.NullString
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| 218 | row := db.db.QueryRowContext(ctx,
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| 219 | `SELECT id, password, admin, realname FROM "User" WHERE username = $1`,
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| 220 | username)
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| 221 | if err := row.Scan(&user.ID, &password, &user.Admin, &realname); err != nil {
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| 222 | return nil, err
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| 223 | }
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| 224 | user.Password = password.String
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| 225 | user.Realname = realname.String
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| 226 | return user, nil
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| 227 | }
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| 228 |
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| 229 | func (db *PostgresDB) StoreUser(ctx context.Context, user *User) error {
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| 230 | ctx, cancel := context.WithTimeout(ctx, postgresQueryTimeout)
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| 231 | defer cancel()
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| 232 |
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| 233 | password := toNullString(user.Password)
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| 234 | realname := toNullString(user.Realname)
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| 235 |
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| 236 | var err error
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| 237 | if user.ID == 0 {
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| 238 | err = db.db.QueryRowContext(ctx, `
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| 239 | INSERT INTO "User" (username, password, admin, realname)
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| 240 | VALUES ($1, $2, $3, $4)
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| 241 | RETURNING id`,
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| 242 | user.Username, password, user.Admin, realname).Scan(&user.ID)
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| 243 | } else {
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| 244 | _, err = db.db.ExecContext(ctx, `
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| 245 | UPDATE "User"
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| 246 | SET password = $1, admin = $2, realname = $3
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| 247 | WHERE id = $4`,
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| 248 | password, user.Admin, realname, user.ID)
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| 249 | }
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| 250 | return err
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| 251 | }
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| 252 |
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| 253 | func (db *PostgresDB) DeleteUser(ctx context.Context, id int64) error {
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| 254 | ctx, cancel := context.WithTimeout(ctx, postgresQueryTimeout)
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| 255 | defer cancel()
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| 256 |
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| 257 | _, err := db.db.ExecContext(ctx, `DELETE FROM "User" WHERE id = $1`, id)
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| 258 | return err
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| 259 | }
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| 260 |
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| 261 | func (db *PostgresDB) ListNetworks(ctx context.Context, userID int64) ([]Network, error) {
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| 262 | ctx, cancel := context.WithTimeout(ctx, postgresQueryTimeout)
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| 263 | defer cancel()
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| 264 |
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| 265 | rows, err := db.db.QueryContext(ctx, `
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| 266 | SELECT id, name, addr, nick, username, realname, pass, connect_commands, sasl_mechanism,
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| 267 | sasl_plain_username, sasl_plain_password, sasl_external_cert, sasl_external_key, enabled
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| 268 | FROM "Network"
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| 269 | WHERE "user" = $1`, userID)
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| 270 | if err != nil {
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| 271 | return nil, err
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| 272 | }
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| 273 | defer rows.Close()
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| 274 |
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| 275 | var networks []Network
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| 276 | for rows.Next() {
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| 277 | var net Network
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| 278 | var name, nick, username, realname, pass, connectCommands sql.NullString
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| 279 | var saslMechanism, saslPlainUsername, saslPlainPassword sql.NullString
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| 280 | err := rows.Scan(&net.ID, &name, &net.Addr, &nick, &username, &realname,
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| 281 | &pass, &connectCommands, &saslMechanism, &saslPlainUsername, &saslPlainPassword,
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| 282 | &net.SASL.External.CertBlob, &net.SASL.External.PrivKeyBlob, &net.Enabled)
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| 283 | if err != nil {
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| 284 | return nil, err
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| 285 | }
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| 286 | net.Name = name.String
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| 287 | net.Nick = nick.String
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| 288 | net.Username = username.String
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| 289 | net.Realname = realname.String
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| 290 | net.Pass = pass.String
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| 291 | if connectCommands.Valid {
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| 292 | net.ConnectCommands = strings.Split(connectCommands.String, "\r\n")
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| 293 | }
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| 294 | net.SASL.Mechanism = saslMechanism.String
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| 295 | net.SASL.Plain.Username = saslPlainUsername.String
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| 296 | net.SASL.Plain.Password = saslPlainPassword.String
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| 297 | networks = append(networks, net)
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| 298 | }
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| 299 | if err := rows.Err(); err != nil {
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| 300 | return nil, err
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| 301 | }
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| 302 |
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| 303 | return networks, nil
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| 304 | }
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| 305 |
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| 306 | func (db *PostgresDB) StoreNetwork(ctx context.Context, userID int64, network *Network) error {
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| 307 | ctx, cancel := context.WithTimeout(ctx, postgresQueryTimeout)
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| 308 | defer cancel()
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| 309 |
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| 310 | netName := toNullString(network.Name)
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| 311 | nick := toNullString(network.Nick)
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| 312 | netUsername := toNullString(network.Username)
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| 313 | realname := toNullString(network.Realname)
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| 314 | pass := toNullString(network.Pass)
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| 315 | connectCommands := toNullString(strings.Join(network.ConnectCommands, "\r\n"))
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| 316 |
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| 317 | var saslMechanism, saslPlainUsername, saslPlainPassword sql.NullString
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| 318 | if network.SASL.Mechanism != "" {
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| 319 | saslMechanism = toNullString(network.SASL.Mechanism)
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| 320 | switch network.SASL.Mechanism {
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| 321 | case "PLAIN":
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| 322 | saslPlainUsername = toNullString(network.SASL.Plain.Username)
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| 323 | saslPlainPassword = toNullString(network.SASL.Plain.Password)
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| 324 | network.SASL.External.CertBlob = nil
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| 325 | network.SASL.External.PrivKeyBlob = nil
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| 326 | case "EXTERNAL":
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| 327 | // keep saslPlain* nil
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| 328 | default:
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| 329 | return fmt.Errorf("soju: cannot store network: unsupported SASL mechanism %q", network.SASL.Mechanism)
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| 330 | }
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| 331 | }
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| 332 |
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| 333 | var err error
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| 334 | if network.ID == 0 {
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| 335 | err = db.db.QueryRowContext(ctx, `
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| 336 | INSERT INTO "Network" ("user", name, addr, nick, username, realname, pass, connect_commands,
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| 337 | sasl_mechanism, sasl_plain_username, sasl_plain_password, sasl_external_cert,
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| 338 | sasl_external_key, enabled)
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| 339 | VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14)
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| 340 | RETURNING id`,
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| 341 | userID, netName, network.Addr, nick, netUsername, realname, pass, connectCommands,
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| 342 | saslMechanism, saslPlainUsername, saslPlainPassword, network.SASL.External.CertBlob,
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| 343 | network.SASL.External.PrivKeyBlob, network.Enabled).Scan(&network.ID)
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| 344 | } else {
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| 345 | _, err = db.db.ExecContext(ctx, `
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| 346 | UPDATE "Network"
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| 347 | SET name = $2, addr = $3, nick = $4, username = $5, realname = $6, pass = $7,
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| 348 | connect_commands = $8, sasl_mechanism = $9, sasl_plain_username = $10,
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| 349 | sasl_plain_password = $11, sasl_external_cert = $12, sasl_external_key = $13,
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| 350 | enabled = $14
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| 351 | WHERE id = $1`,
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| 352 | network.ID, netName, network.Addr, nick, netUsername, realname, pass, connectCommands,
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| 353 | saslMechanism, saslPlainUsername, saslPlainPassword, network.SASL.External.CertBlob,
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| 354 | network.SASL.External.PrivKeyBlob, network.Enabled)
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| 355 | }
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| 356 | return err
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| 357 | }
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| 358 |
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| 359 | func (db *PostgresDB) DeleteNetwork(ctx context.Context, id int64) error {
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| 360 | ctx, cancel := context.WithTimeout(ctx, postgresQueryTimeout)
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| 361 | defer cancel()
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| 362 |
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| 363 | _, err := db.db.ExecContext(ctx, `DELETE FROM "Network" WHERE id = $1`, id)
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| 364 | return err
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| 365 | }
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| 366 |
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| 367 | func (db *PostgresDB) ListChannels(ctx context.Context, networkID int64) ([]Channel, error) {
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| 368 | ctx, cancel := context.WithTimeout(ctx, postgresQueryTimeout)
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| 369 | defer cancel()
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| 370 |
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| 371 | rows, err := db.db.QueryContext(ctx, `
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| 372 | SELECT id, name, key, detached, detached_internal_msgid, relay_detached, reattach_on, detach_after,
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| 373 | detach_on
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| 374 | FROM "Channel"
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| 375 | WHERE network = $1`, networkID)
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| 376 | if err != nil {
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| 377 | return nil, err
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| 378 | }
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| 379 | defer rows.Close()
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| 380 |
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| 381 | var channels []Channel
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| 382 | for rows.Next() {
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| 383 | var ch Channel
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| 384 | var key, detachedInternalMsgID sql.NullString
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| 385 | var detachAfter int64
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| 386 | 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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| 387 | return nil, err
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| 388 | }
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| 389 | ch.Key = key.String
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| 390 | ch.DetachedInternalMsgID = detachedInternalMsgID.String
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| 391 | ch.DetachAfter = time.Duration(detachAfter) * time.Second
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| 392 | channels = append(channels, ch)
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| 393 | }
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| 394 | if err := rows.Err(); err != nil {
|
|---|
| 395 | return nil, err
|
|---|
| 396 | }
|
|---|
| 397 |
|
|---|
| 398 | return channels, nil
|
|---|
| 399 | }
|
|---|
| 400 |
|
|---|
| 401 | func (db *PostgresDB) StoreChannel(ctx context.Context, networkID int64, ch *Channel) error {
|
|---|
| 402 | ctx, cancel := context.WithTimeout(ctx, postgresQueryTimeout)
|
|---|
| 403 | defer cancel()
|
|---|
| 404 |
|
|---|
| 405 | key := toNullString(ch.Key)
|
|---|
| 406 | detachAfter := int64(math.Ceil(ch.DetachAfter.Seconds()))
|
|---|
| 407 |
|
|---|
| 408 | var err error
|
|---|
| 409 | if ch.ID == 0 {
|
|---|
| 410 | err = db.db.QueryRowContext(ctx, `
|
|---|
| 411 | INSERT INTO "Channel" (network, name, key, detached, detached_internal_msgid, relay_detached, reattach_on,
|
|---|
| 412 | detach_after, detach_on)
|
|---|
| 413 | VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9)
|
|---|
| 414 | RETURNING id`,
|
|---|
| 415 | networkID, ch.Name, key, ch.Detached, toNullString(ch.DetachedInternalMsgID),
|
|---|
| 416 | ch.RelayDetached, ch.ReattachOn, detachAfter, ch.DetachOn).Scan(&ch.ID)
|
|---|
| 417 | } else {
|
|---|
| 418 | _, err = db.db.ExecContext(ctx, `
|
|---|
| 419 | UPDATE "Channel"
|
|---|
| 420 | SET name = $2, key = $3, detached = $4, detached_internal_msgid = $5,
|
|---|
| 421 | relay_detached = $6, reattach_on = $7, detach_after = $8, detach_on = $9
|
|---|
| 422 | WHERE id = $1`,
|
|---|
| 423 | ch.ID, ch.Name, key, ch.Detached, toNullString(ch.DetachedInternalMsgID),
|
|---|
| 424 | ch.RelayDetached, ch.ReattachOn, detachAfter, ch.DetachOn)
|
|---|
| 425 | }
|
|---|
| 426 | return err
|
|---|
| 427 | }
|
|---|
| 428 |
|
|---|
| 429 | func (db *PostgresDB) DeleteChannel(ctx context.Context, id int64) error {
|
|---|
| 430 | ctx, cancel := context.WithTimeout(ctx, postgresQueryTimeout)
|
|---|
| 431 | defer cancel()
|
|---|
| 432 |
|
|---|
| 433 | _, err := db.db.ExecContext(ctx, `DELETE FROM "Channel" WHERE id = $1`, id)
|
|---|
| 434 | return err
|
|---|
| 435 | }
|
|---|
| 436 |
|
|---|
| 437 | func (db *PostgresDB) ListDeliveryReceipts(ctx context.Context, networkID int64) ([]DeliveryReceipt, error) {
|
|---|
| 438 | ctx, cancel := context.WithTimeout(ctx, postgresQueryTimeout)
|
|---|
| 439 | defer cancel()
|
|---|
| 440 |
|
|---|
| 441 | rows, err := db.db.QueryContext(ctx, `
|
|---|
| 442 | SELECT id, target, client, internal_msgid
|
|---|
| 443 | FROM "DeliveryReceipt"
|
|---|
| 444 | WHERE network = $1`, networkID)
|
|---|
| 445 | if err != nil {
|
|---|
| 446 | return nil, err
|
|---|
| 447 | }
|
|---|
| 448 | defer rows.Close()
|
|---|
| 449 |
|
|---|
| 450 | var receipts []DeliveryReceipt
|
|---|
| 451 | for rows.Next() {
|
|---|
| 452 | var rcpt DeliveryReceipt
|
|---|
| 453 | if err := rows.Scan(&rcpt.ID, &rcpt.Target, &rcpt.Client, &rcpt.InternalMsgID); err != nil {
|
|---|
| 454 | return nil, err
|
|---|
| 455 | }
|
|---|
| 456 | receipts = append(receipts, rcpt)
|
|---|
| 457 | }
|
|---|
| 458 | if err := rows.Err(); err != nil {
|
|---|
| 459 | return nil, err
|
|---|
| 460 | }
|
|---|
| 461 |
|
|---|
| 462 | return receipts, nil
|
|---|
| 463 | }
|
|---|
| 464 |
|
|---|
| 465 | func (db *PostgresDB) StoreClientDeliveryReceipts(ctx context.Context, networkID int64, client string, receipts []DeliveryReceipt) error {
|
|---|
| 466 | ctx, cancel := context.WithTimeout(ctx, postgresQueryTimeout)
|
|---|
| 467 | defer cancel()
|
|---|
| 468 |
|
|---|
| 469 | tx, err := db.db.Begin()
|
|---|
| 470 | if err != nil {
|
|---|
| 471 | return err
|
|---|
| 472 | }
|
|---|
| 473 | defer tx.Rollback()
|
|---|
| 474 |
|
|---|
| 475 | _, err = tx.ExecContext(ctx,
|
|---|
| 476 | `DELETE FROM "DeliveryReceipt" WHERE network = $1 AND client = $2`,
|
|---|
| 477 | networkID, client)
|
|---|
| 478 | if err != nil {
|
|---|
| 479 | return err
|
|---|
| 480 | }
|
|---|
| 481 |
|
|---|
| 482 | stmt, err := tx.PrepareContext(ctx, `
|
|---|
| 483 | INSERT INTO "DeliveryReceipt" (network, target, client, internal_msgid)
|
|---|
| 484 | VALUES ($1, $2, $3, $4)
|
|---|
| 485 | RETURNING id`)
|
|---|
| 486 | if err != nil {
|
|---|
| 487 | return err
|
|---|
| 488 | }
|
|---|
| 489 | defer stmt.Close()
|
|---|
| 490 |
|
|---|
| 491 | for i := range receipts {
|
|---|
| 492 | rcpt := &receipts[i]
|
|---|
| 493 | err := stmt.
|
|---|
| 494 | QueryRowContext(ctx, networkID, rcpt.Target, client, rcpt.InternalMsgID).
|
|---|
| 495 | Scan(&rcpt.ID)
|
|---|
| 496 | if err != nil {
|
|---|
| 497 | return err
|
|---|
| 498 | }
|
|---|
| 499 | }
|
|---|
| 500 |
|
|---|
| 501 | return tx.Commit()
|
|---|
| 502 | }
|
|---|
