forked from pdfcpu/pdfcpu
/
parseConfig.go
140 lines (117 loc) · 4.13 KB
/
parseConfig.go
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//go:build !js
// +build !js
/*
Copyright 2020 The pdfcpu Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package model
import (
"bytes"
"io"
"github.com/meandrewdev/pdfcpu/pkg/pdfcpu/types"
"github.com/pkg/errors"
"gopkg.in/yaml.v2"
)
type configuration struct {
CheckFileNameExt bool `yaml:"checkFileNameExt"`
Reader15 bool `yaml:"reader15"`
DecodeAllStreams bool `yaml:"decodeAllStreams"`
ValidationMode string `yaml:"validationMode"`
Eol string `yaml:"eol"`
WriteObjectStream bool `yaml:"writeObjectStream"`
WriteXRefStream bool `yaml:"writeXRefStream"`
EncryptUsingAES bool `yaml:"encryptUsingAES"`
EncryptKeyLength int `yaml:"encryptKeyLength"`
Permissions int `yaml:"permissions"`
Unit string `yaml:"unit"`
Units string `yaml:"units"` // Be flexible if version < v0.3.8
TimestampFormat string `yaml:"timestampFormat"`
DateFormat string `yaml:"dateFormat"`
OptimizeDuplicateContentStreams bool `yaml:"optimizeDuplicateContentStreams"`
CreateBookmarks bool `yaml:"createBookmarks"`
NeedAppearances bool `yaml:"needAppearances"`
}
func loadedConfig(c configuration, configPath string) *Configuration {
var conf Configuration
conf.Path = configPath
conf.CheckFileNameExt = c.CheckFileNameExt
conf.Reader15 = c.Reader15
conf.DecodeAllStreams = c.DecodeAllStreams
conf.WriteObjectStream = c.WriteObjectStream
conf.WriteXRefStream = c.WriteXRefStream
conf.EncryptUsingAES = c.EncryptUsingAES
conf.EncryptKeyLength = c.EncryptKeyLength
conf.Permissions = PermissionFlags(c.Permissions)
switch c.ValidationMode {
case "ValidationStrict":
conf.ValidationMode = ValidationStrict
case "ValidationRelaxed":
conf.ValidationMode = ValidationRelaxed
case "ValidationNone":
conf.ValidationMode = ValidationNone
}
switch c.Eol {
case "EolLF":
conf.Eol = types.EolLF
case "EolCR":
conf.Eol = types.EolCR
case "EolCRLF":
conf.Eol = types.EolCRLF
}
switch c.Unit {
case "points":
conf.Unit = types.POINTS
case "inches":
conf.Unit = types.INCHES
case "cm":
conf.Unit = types.CENTIMETRES
case "mm":
conf.Unit = types.MILLIMETRES
}
conf.TimestampFormat = c.TimestampFormat
conf.DateFormat = c.DateFormat
conf.OptimizeDuplicateContentStreams = c.OptimizeDuplicateContentStreams
conf.CreateBookmarks = c.CreateBookmarks
conf.NeedAppearances = c.NeedAppearances
return &conf
}
func parseConfigFile(r io.Reader, configPath string) error {
var c configuration
// Enforce default for old config files.
c.CheckFileNameExt = true
var buf bytes.Buffer
if _, err := io.Copy(&buf, r); err != nil {
return err
}
if err := yaml.Unmarshal(buf.Bytes(), &c); err != nil {
return err
}
if !types.MemberOf(c.ValidationMode, []string{"ValidationStrict", "ValidationRelaxed", "ValidationNone"}) {
return errors.Errorf("invalid validationMode: %s", c.ValidationMode)
}
if !types.MemberOf(c.Eol, []string{"EolLF", "EolCR", "EolCRLF"}) {
return errors.Errorf("invalid eol: %s", c.Eol)
}
if c.Unit == "" {
// v0.3.8 modifies "units" to "unit".
if c.Units != "" {
c.Unit = c.Units
}
}
if !types.MemberOf(c.Unit, []string{"points", "inches", "cm", "mm"}) {
return errors.Errorf("invalid unit: %s", c.Unit)
}
if !types.IntMemberOf(c.EncryptKeyLength, []int{40, 128, 256}) {
return errors.Errorf("encryptKeyLength possible values: 40, 128, 256, got: %s", c.Unit)
}
loadedDefaultConfig = loadedConfig(c, configPath)
return nil
}