feat: eat my own down food

a.k.a. use my own tiff-parser library

go.mod

@@ -43,6 +43,7 @@ require (
 	github.com/dsoprea/go-iptc v0.0.0-20200610044640-bc9ca208b413 // indirect
 	github.com/dsoprea/go-logging v0.0.0-20200710184922-b02d349568dd // indirect
 	github.com/dsoprea/go-photoshop-info-format v0.0.0-20200610045659-121dd752914d // indirect
+	github.com/fedragon/tiff-parser v0.2.0 // indirect
 	github.com/go-errors/errors v1.5.1 // indirect
 	github.com/go-ole/go-ole v1.3.0 // indirect
 	github.com/go-xmlfmt/xmlfmt v1.1.2 // indirect

go.sum

@@ -92,6 +92,10 @@ github.com/dsoprea/go-utility v0.0.0-20221003172846-a3e1774ef349/go.mod h1:KVK+/
 github.com/dsoprea/go-utility/v2 v2.0.0-20200717064901-2fccff4aa15e/go.mod h1:uAzdkPTub5Y9yQwXe8W4m2XuP0tK4a9Q/dantD0+uaU=
 github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
 github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
+github.com/fedragon/tiff-parser v0.1.0 h1:Wu7FiKxfzvSflxBu4ymzqyPAtW05S0/3/FOjZQKzadQ=
+github.com/fedragon/tiff-parser v0.1.0/go.mod h1:YBJnorsx1hBQkvw4r9VpFppMHuIcG/APTL22WGEUx/8=
+github.com/fedragon/tiff-parser v0.2.0 h1:yvnoOa3u+Sp4E7BVq1TNIUDTsdB1fnNak8pDzxCRSWo=
+github.com/fedragon/tiff-parser v0.2.0/go.mod h1:YBJnorsx1hBQkvw4r9VpFppMHuIcG/APTL22WGEUx/8=
 github.com/go-errors/errors v1.0.1/go.mod h1:f4zRHt4oKfwPJE5k8C9vpYG+aDHdBFUsgrm6/TyX73Q=
 github.com/go-errors/errors v1.0.2/go.mod h1:psDX2osz5VnTOnFWbDeWwS7yejl+uV3FEWEp4lssFEs=
 github.com/go-errors/errors v1.1.1/go.mod h1:psDX2osz5VnTOnFWbDeWwS7yejl+uV3FEWEp4lssFEs=

internal/header/parser.go

@@ -11,6 +11,7 @@ import (
 	heic "github.com/dsoprea/go-heic-exif-extractor"
 	jpeg "github.com/dsoprea/go-jpeg-image-structure"
 	image "github.com/dsoprea/go-utility/image"
+	"github.com/fedragon/tiff-parser/tiff"
 )
 
 var parsers = map[string]image.MediaParser{
@@ -19,7 +20,7 @@ var parsers = map[string]image.MediaParser{
 	".heic": heic.NewHeicExifMediaParser(),
 }
 
-var tiff = map[string]struct{}{
+var tiffs = map[string]struct{}{
 	".cr2":  {},
 	".orf":  {},
 	".tiff": {},
@@ -44,21 +45,29 @@ func ParseCreatedAt(path string) (time.Time, error) {
 		return createdAt, nil
 	}
 
-	if _, ok := tiff[ext]; ok {
+	if _, ok := tiffs[ext]; ok {
 		var reader io.ReadSeekCloser
 		reader, err = os.Open(path)
 		if err != nil {
 			return time.Time{}, err
 		}
 		defer reader.Close()
-		createdAt, done, err = parseFromTiff(reader)
 
-		if err != nil && err.Error() != "no exif data" {
+		parser, err := tiff.NewParser(reader)
+		if err != nil {
+			return time.Time{}, err
+		}
+
+		entries, err := parser.Parse(tiff.DateTimeOriginal)
+		if err != nil {
 			return time.Time{}, err
 		}
 
-		if done {
-			return createdAt, nil
+		if en, ok := entries[tiff.DateTimeOriginal]; ok {
+			switch en.DataType {
+			case tiff.DataType_String:
+				return time.Parse("2006:01:02 15:04:05", *en.Value.String)
+			}
 		}
 	}
 
@@ -78,7 +87,7 @@ func parse(parser image.MediaParser, path string) (time.Time, error, bool) {
 	if err != nil {
 		return time.Time{}, err, false
 	}
-	tags, err := exif.FindTagWithId(dateTimeOriginal)
+	tags, err := exif.FindTagWithId(0x9003) // dateTimeOriginal
 	if err != nil {
 		return time.Time{}, err, false
 	}