80 lines
2.5 KiB
Go
80 lines
2.5 KiB
Go
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/*
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* MinIO Cloud Storage, (C) 2019 MinIO, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package compress
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import (
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"fmt"
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"strconv"
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"strings"
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"github.com/minio/minio/cmd/config"
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"github.com/minio/minio/pkg/env"
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)
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// Config represents the compression settings.
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type Config struct {
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Enabled bool `json:"enabled"`
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Extensions []string `json:"extensions"`
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MimeTypes []string `json:"mime-types"`
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}
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// Compression environment variables
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const (
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EnvMinioCompress = "MINIO_COMPRESS"
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EnvMinioCompressExtensions = "MINIO_COMPRESS_EXTENSIONS"
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EnvMinioCompressMimeTypes = "MINIO_COMPRESS_MIMETYPES"
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)
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// Parses the given compression exclude list `extensions` or `content-types`.
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func parseCompressIncludes(includes []string) ([]string, error) {
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for _, e := range includes {
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if len(e) == 0 {
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return nil, config.ErrInvalidCompressionIncludesValue(nil).Msg("extension/mime-type (%s) cannot be empty", e)
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}
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}
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return includes, nil
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}
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// LookupConfig - lookup compression config.
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func LookupConfig(cfg Config) (Config, error) {
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const compressEnvDelimiter = ","
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if compress := env.Get(EnvMinioCompress, strconv.FormatBool(cfg.Enabled)); compress != "" {
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cfg.Enabled = strings.EqualFold(compress, "true")
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}
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compressExtensions := env.Get(EnvMinioCompressExtensions, strings.Join(cfg.Extensions, ","))
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compressMimeTypes := env.Get(EnvMinioCompressMimeTypes, strings.Join(cfg.MimeTypes, ","))
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if compressExtensions != "" || compressMimeTypes != "" {
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if compressExtensions != "" {
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extensions, err := parseCompressIncludes(strings.Split(compressExtensions, compressEnvDelimiter))
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if err != nil {
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return cfg, fmt.Errorf("%s: Invalid MINIO_COMPRESS_EXTENSIONS value (`%s`)", err, extensions)
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}
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cfg.Extensions = extensions
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}
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if compressMimeTypes != "" {
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contenttypes, err := parseCompressIncludes(strings.Split(compressMimeTypes, compressEnvDelimiter))
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if err != nil {
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return cfg, fmt.Errorf("%s: Invalid MINIO_COMPRESS_MIMETYPES value (`%s`)", err, contenttypes)
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}
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cfg.MimeTypes = contenttypes
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}
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}
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return cfg, nil
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}
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