gotosocial/internal/media/util.go
kim 098dbe6ff4
[chore] use our own logging implementation (#716)
* first commit

Signed-off-by: kim <grufwub@gmail.com>

* replace logging with our own log library

Signed-off-by: kim <grufwub@gmail.com>

* fix imports

Signed-off-by: kim <grufwub@gmail.com>

* fix log imports

Signed-off-by: kim <grufwub@gmail.com>

* add license text

Signed-off-by: kim <grufwub@gmail.com>

* fix package import cycle between config and log package

Signed-off-by: kim <grufwub@gmail.com>

* fix empty kv.Fields{} being passed to WithFields()

Signed-off-by: kim <grufwub@gmail.com>

* fix uses of log.WithFields() with whitespace issues and empty slices

Signed-off-by: kim <grufwub@gmail.com>

* *linter related grumbling*

Signed-off-by: kim <grufwub@gmail.com>

* gofmt the codebase! also fix more log.WithFields() formatting issues

Signed-off-by: kim <grufwub@gmail.com>

* update testrig code to match new changes

Signed-off-by: kim <grufwub@gmail.com>

* fix error wrapping in non fmt.Errorf function

Signed-off-by: kim <grufwub@gmail.com>

* add benchmarking of log.Caller() vs non-cached

Signed-off-by: kim <grufwub@gmail.com>

* fix syslog tests, add standard build tags to test runner to ensure consistency

Signed-off-by: kim <grufwub@gmail.com>

* make syslog tests more robust

Signed-off-by: kim <grufwub@gmail.com>

* fix caller depth arithmatic (is that how you spell it?)

Signed-off-by: kim <grufwub@gmail.com>

* update to use unkeyed fields in kv.Field{} instances

Signed-off-by: kim <grufwub@gmail.com>

* update go-kv library

Signed-off-by: kim <grufwub@gmail.com>

* update libraries list

Signed-off-by: kim <grufwub@gmail.com>

* fuck you linter get nerfed

Signed-off-by: kim <grufwub@gmail.com>

Co-authored-by: tobi <31960611+tsmethurst@users.noreply.github.com>
2022-07-19 10:47:55 +02:00

146 lines
4.2 KiB
Go

/*
GoToSocial
Copyright (C) 2021-2022 GoToSocial Authors admin@gotosocial.org
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package media
import (
"errors"
"fmt"
"time"
"github.com/h2non/filetype"
"github.com/superseriousbusiness/gotosocial/internal/log"
)
// AllSupportedMIMETypes just returns all media
// MIME types supported by this instance.
func AllSupportedMIMETypes() []string {
return []string{
mimeImageJpeg,
mimeImageGif,
mimeImagePng,
}
}
// parseContentType parses the MIME content type from a file, returning it as a string in the form (eg., "image/jpeg").
// Returns an error if the content type is not something we can process.
//
// Fileheader should be no longer than 262 bytes; anything more than this is inefficient.
func parseContentType(fileHeader []byte) (string, error) {
if fhLength := len(fileHeader); fhLength > maxFileHeaderBytes {
return "", fmt.Errorf("parseContentType requires %d bytes max, we got %d", maxFileHeaderBytes, fhLength)
}
kind, err := filetype.Match(fileHeader)
if err != nil {
return "", err
}
if kind == filetype.Unknown {
return "", errors.New("filetype unknown")
}
return kind.MIME.Value, nil
}
// supportedImage checks mime type of an image against a slice of accepted types,
// and returns True if the mime type is accepted.
func supportedImage(mimeType string) bool {
acceptedImageTypes := []string{
mimeImageJpeg,
mimeImageGif,
mimeImagePng,
}
for _, accepted := range acceptedImageTypes {
if mimeType == accepted {
return true
}
}
return false
}
// supportedEmoji checks that the content type is image/png or image/gif -- the only types supported for emoji.
func supportedEmoji(mimeType string) bool {
acceptedEmojiTypes := []string{
mimeImageGif,
mimeImagePng,
}
for _, accepted := range acceptedEmojiTypes {
if mimeType == accepted {
return true
}
}
return false
}
// ParseMediaType converts s to a recognized MediaType, or returns an error if unrecognized
func ParseMediaType(s string) (Type, error) {
switch s {
case string(TypeAttachment):
return TypeAttachment, nil
case string(TypeHeader):
return TypeHeader, nil
case string(TypeAvatar):
return TypeAvatar, nil
case string(TypeEmoji):
return TypeEmoji, nil
}
return "", fmt.Errorf("%s not a recognized MediaType", s)
}
// ParseMediaSize converts s to a recognized MediaSize, or returns an error if unrecognized
func ParseMediaSize(s string) (Size, error) {
switch s {
case string(SizeSmall):
return SizeSmall, nil
case string(SizeOriginal):
return SizeOriginal, nil
case string(SizeStatic):
return SizeStatic, nil
}
return "", fmt.Errorf("%s not a recognized MediaSize", s)
}
// logrusWrapper is just a util for passing the logrus logger into the cron logging system.
type logrusWrapper struct{}
// Info logs routine messages about cron's operation.
func (l *logrusWrapper) Info(msg string, keysAndValues ...interface{}) {
log.Info("media manager cron logger: ", msg, keysAndValues)
}
// Error logs an error condition.
func (l *logrusWrapper) Error(err error, msg string, keysAndValues ...interface{}) {
log.Error("media manager cron logger: ", err, msg, keysAndValues)
}
func parseOlderThan(olderThanDays int) (time.Time, error) {
// convert days into a duration string
olderThanHoursString := fmt.Sprintf("%dh", olderThanDays*24)
// parse the duration string into a duration
olderThanHours, err := time.ParseDuration(olderThanHoursString)
if err != nil {
return time.Time{}, err
}
// 'subtract' that from the time now to give our threshold
olderThan := time.Now().Add(-olderThanHours)
return olderThan, nil
}