Marek Miklewicz
123 lines
3.3 KiB
Bash
Executable File
123 lines
3.3 KiB
Bash
Executable File
#!/bin/bash
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set -Eeuo pipefail
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SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
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PLUGIN_DIR="$(cd "$SCRIPT_DIR/../.." && pwd)"
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COMMON_FILE="$PLUGIN_DIR/scripts/setup/mysql_common.sh"
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SETTINGS_FILE="${DA_ALT_MYSQL_SETTINGS_FILE:-$PLUGIN_DIR/plugin-settings.conf}"
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LOG_FILE="${DA_ALT_MYSQL_RESTORE_LOG:-$PLUGIN_DIR/data/logs/da-restore.log}"
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mkdir -p "$(dirname "$LOG_FILE")"
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log() {
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printf '[%s] %s\n' "$(date '+%Y-%m-%d %H:%M:%S')" "$*" >> "$LOG_FILE"
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}
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die() {
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log "ERROR: $*"
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printf 'alt-mysql native backup restore: %s\n' "$*" >&2
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exit 1
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}
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url_decode() {
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local encoded="${1//+/ }"
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printf '%b' "${encoded//%/\\x}"
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}
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native_conf_field() {
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local qs="$1" field="$2" pair
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local -a pairs
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IFS='&' read -ra pairs <<< "$qs"
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for pair in "${pairs[@]}"; do
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if [ "${pair%%=*}" = "$field" ]; then
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printf '%s' "${pair#*=}"
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return 0
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fi
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done
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return 0
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}
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NATIVE_PRIV_FLAG_MAP=(
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"select_priv:SELECT" "insert_priv:INSERT" "update_priv:UPDATE" "delete_priv:DELETE"
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"create_priv:CREATE" "drop_priv:DROP" "index_priv:INDEX" "alter_priv:ALTER"
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"create_tmp_table_priv:CREATE TEMPORARY TABLES" "lock_tables_priv:LOCK TABLES"
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"create_view_priv:CREATE VIEW" "show_view_priv:SHOW VIEW"
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"create_routine_priv:CREATE ROUTINE" "alter_routine_priv:ALTER ROUTINE"
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"execute_priv:EXECUTE" "event_priv:EVENT" "trigger_priv:TRIGGER"
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"references_priv:REFERENCES"
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)
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native_conf_privilege_list() {
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local qs="$1"
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local entry flag name value
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local -a privs=()
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for entry in "${NATIVE_PRIV_FLAG_MAP[@]}"; do
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flag="${entry%%:*}"
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name="${entry#*:}"
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value="$(native_conf_field "$qs" "$flag")"
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[ "$value" = "Y" ] && privs+=("$name")
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done
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if [ "${#privs[@]}" -eq 0 ]; then
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printf 'ALL'
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else
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local IFS=,
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printf '%s' "${privs[*]}"
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fi
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}
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parse_native_db_conf() {
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local conf_file="$1"
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local line key value
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NATIVE_DB_CHARSET=""
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NATIVE_DB_COLLATION=""
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NATIVE_DB_USER_NAMES=()
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NATIVE_DB_USER_HOST=()
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NATIVE_DB_USER_HASH=()
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NATIVE_DB_USER_PLUGIN=()
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NATIVE_DB_USER_PRIVS=()
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[ -r "$conf_file" ] || { log "cannot read conf file: $conf_file"; return 1; }
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while IFS= read -r line || [ -n "$line" ]; do
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[ -n "$line" ] || continue
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[[ "$line" == *=* ]] || continue
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key="${line%%=*}"
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value="${line#*=}"
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case "$key" in
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db_collation)
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NATIVE_DB_CHARSET="$(native_conf_field "$value" DEFAULT_CHARACTER_SET_NAME)"
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NATIVE_DB_COLLATION="$(native_conf_field "$value" DEFAULT_COLLATION_NAME)"
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;;
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accesshosts) ;;
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*)
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NATIVE_DB_USER_NAMES+=("$key")
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NATIVE_DB_USER_HOST+=("$(native_conf_field "$value" accesshosts)")
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NATIVE_DB_USER_HASH+=("$(url_decode "$(native_conf_field "$value" passwd)")")
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NATIVE_DB_USER_PLUGIN+=("$(native_conf_field "$value" plugin)")
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NATIVE_DB_USER_PRIVS+=("$(native_conf_privilege_list "$value")")
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;;
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esac
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done < "$conf_file"
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if [ -z "$NATIVE_DB_CHARSET" ]; then
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log "missing db_collation charset in $conf_file"
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return 1
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fi
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if [ "${#NATIVE_DB_USER_NAMES[@]}" -eq 0 ]; then
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log "no MySQL users found in $conf_file"
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return 1
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fi
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return 0
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}
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if [[ "${BASH_SOURCE[0]}" == "${0}" ]]; then
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[ -r "$COMMON_FILE" ] || die "missing helper: $COMMON_FILE"
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# shellcheck source=../setup/mysql_common.sh
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source "$COMMON_FILE"
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mysql_load_plugin_settings_file "$SETTINGS_FILE"
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# main() is added in Task 3.
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fi
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