fix: chromium exact colors (#361)

Makefile

@@ -46,6 +46,7 @@ API_DISABLE_WEBHOOK=false
 CHROMIUM_USER_AGENT=
 CHROMIUM_INCOGNITO=false
 CHROMIUM_IGNORE_CERTIFICATE_ERRORS=false
+CHROMIUM_ALLOW_FILE_ACCESS_FROM_FILES=false
 CHROMIUM_ALLOW_LIST=
 CHROMIUM_DENY_LIST="^file:///[^tmp].*"
 CHROMIUM_DISABLE_ROUTES=false
@@ -81,6 +82,7 @@ run: ## Start a Gotenberg container
 	--chromium-user-agent=$(CHROMIUM_USER_AGENT) \
 	--chromium-incognito=$(CHROMIUM_INCOGNITO) \
 	--chromium-ignore-certificate-errors=$(CHROMIUM_IGNORE_CERTIFICATE_ERRORS) \
+	--chromium-allow-file-access-from-files=$(CHROMIUM_ALLOW_FILE_ACCESS_FROM_FILES) \
 	--chromium-allow-list=$(CHROMIUM_ALLOW_LIST) \
 	--chromium-deny-list=$(CHROMIUM_DENY_LIST) \
 	--chromium-disable-routes=$(CHROMIUM_DISABLE_ROUTES) \
@@ -125,7 +127,7 @@ godoc: ## Run a webserver with Gotenberg godoc (go get golang.org/x/tools/cmd/go
 	godoc -http=:6060
 
 .PHONY: release
-release: ## Build the Gotenberg's Docker image for linux/amd64 and linux/arm64 platforms, then push it to a Docker repository
+release: ## Build the Gotenberg's Docker image for many platforms, then push it to a Docker repository
 	./scripts/release.sh \
  	$(GOLANG_VERSION) \
 	$(GOTENBERG_VERSION) \

build/Dockerfile

@@ -52,7 +52,7 @@ ARG NOTO_COLOR_EMOJI_VERSION
 ARG PDFTK_VERSION
 
 # Script for installing either Google Chrome stable on amd64 architecture or
-# Chromium on arm64 architecture.
+# Chromium on other architectures.
 # See https://github.com/gotenberg/gotenberg/issues/328.
 COPY build/install-chromium.sh /tmp/install-chromium.sh
 

go.mod

@@ -5,17 +5,17 @@ go 1.17
 require (
 	github.com/alexliesenfeld/health v0.6.0
 	github.com/andybalholm/brotli v1.0.3 // indirect
-	github.com/chromedp/cdproto v0.0.0-20210823203301-2c0adcc9edc4
+	github.com/chromedp/cdproto v0.0.0-20210910012206-68626162910d
 	github.com/chromedp/chromedp v0.7.4
 	github.com/golang/snappy v0.0.4 // indirect
 	github.com/google/uuid v1.3.0
 	github.com/hashicorp/go-cleanhttp v0.5.2 // indirect
 	github.com/hashicorp/go-retryablehttp v0.7.0
-	github.com/klauspost/compress v1.13.4 // indirect
+	github.com/klauspost/compress v1.13.6 // indirect
 	github.com/klauspost/pgzip v1.2.5 // indirect
 	github.com/labstack/echo/v4 v4.5.0
 	github.com/labstack/gommon v0.3.0
-	github.com/mattn/go-isatty v0.0.13 // indirect
+	github.com/mattn/go-isatty v0.0.14 // indirect
 	github.com/mholt/archiver/v3 v3.5.0
 	github.com/microcosm-cc/bluemonday v1.0.15
 	github.com/nwaples/rardecode v1.1.2 // indirect
@@ -26,7 +26,7 @@ require (
 	github.com/ulikunitz/xz v0.5.10 // indirect
 	go.uber.org/atomic v1.9.0 // indirect
 	go.uber.org/multierr v1.7.0
-	go.uber.org/zap v1.19.0
+	go.uber.org/zap v1.19.1
 	golang.org/x/crypto v0.0.0-20210817164053-32db794688a5 // indirect
 	golang.org/x/image v0.0.0-20210628002857-a66eb6448b8d // indirect
 	golang.org/x/net v0.0.0-20210813160813-60bc85c4be6d // indirect
@@ -34,7 +34,6 @@ require (
 	golang.org/x/sys v0.0.0-20210820121016-41cdb8703e55 // indirect
 	golang.org/x/term v0.0.0-20210615171337-6886f2dfbf5b
 	golang.org/x/text v0.3.7
-	golang.org/x/tools v0.1.5 // indirect
 )
 
 require (

go.sum

@@ -9,8 +9,8 @@ github.com/aymerick/douceur v0.2.0/go.mod h1:wlT5vV2O3h55X9m7iVYN0TBM0NH/MmbLnd3
 github.com/benbjohnson/clock v1.1.0 h1:Q92kusRqC1XV2MjkWETPvjJVqKetz1OzxZB7mHJLju8=
 github.com/benbjohnson/clock v1.1.0/go.mod h1:J11/hYXuz8f4ySSvYwY0FKfm+ezbsZBKZxNJlLklBHA=
 github.com/chromedp/cdproto v0.0.0-20210713064928-7d28b402946a/go.mod h1:At5TxYYdxkbQL0TSefRjhLE3Q0lgvqKKMSFUglJ7i1U=
-github.com/chromedp/cdproto v0.0.0-20210823203301-2c0adcc9edc4 h1:cD7F5LfNjC4dtb+BQe1KxxE8RsceYtS+Kyo+yEs4iUc=
+github.com/chromedp/cdproto v0.0.0-20210910012206-68626162910d h1:77O+89zb1W9dPNUGjXOGt/J4LP70jPIPz9Rxs3aSX1w=
-github.com/chromedp/cdproto v0.0.0-20210823203301-2c0adcc9edc4/go.mod h1:At5TxYYdxkbQL0TSefRjhLE3Q0lgvqKKMSFUglJ7i1U=
+github.com/chromedp/cdproto v0.0.0-20210910012206-68626162910d/go.mod h1:At5TxYYdxkbQL0TSefRjhLE3Q0lgvqKKMSFUglJ7i1U=
 github.com/chromedp/chromedp v0.7.4 h1:U+0d3WbB/Oj4mDuBOI0P7S3PJEued5UZIl5AJ3QulwU=
 github.com/chromedp/chromedp v0.7.4/go.mod h1:dBj+SXuQHznp6ZPwZeDDEBZKwclUwDLbZ0hjMialMYs=
 github.com/chromedp/sysutil v1.0.0 h1:+ZxhTpfpZlmchB58ih/LBHX52ky7w2VhQVKQMucy3Ic=
@@ -29,7 +29,6 @@ github.com/gobwas/ws v1.1.0 h1:7RFti/xnNkMJnrK7D1yQ/iCIB5OrrY/54/H930kIbHA=
 github.com/gobwas/ws v1.1.0/go.mod h1:nzvNcVha5eUziGrbxFCo6qFIojQHjJV5cLYIbezhfL0=
 github.com/golang-jwt/jwt v3.2.2+incompatible/go.mod h1:8pz2t5EyA70fFQQSrl6XZXzqecmYZeUEB8OUGHkxJ+I=
 github.com/golang/snappy v0.0.1/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
-github.com/golang/snappy v0.0.3/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
 github.com/golang/snappy v0.0.4 h1:yAGX7huGHXlcLOEtBnF4w7FQwA26wojNCwOYAEhLjQM=
 github.com/golang/snappy v0.0.4/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
 github.com/google/uuid v1.3.0 h1:t6JiXgmwXMjEs8VusXIJk2BXHsn+wx8BZdTaoZ5fu7I=
@@ -52,8 +51,8 @@ github.com/josharian/intern v1.0.0 h1:vlS4z54oSdjm0bgjRigI+G1HpF+tI+9rE5LLzOg8Hm
 github.com/josharian/intern v1.0.0/go.mod h1:5DoeVV0s6jJacbCEi61lwdGj/aVlrQvzHFFd8Hwg//Y=
 github.com/klauspost/compress v1.4.1/go.mod h1:RyIbtBH6LamlWaDj8nUwkbUhJ87Yi3uG0guNDohfE1A=
 github.com/klauspost/compress v1.10.10/go.mod h1:aoV0uJVorq1K+umq18yTdKaF57EivdYsUV+/s2qKfXs=
-github.com/klauspost/compress v1.13.4 h1:0zhec2I8zGnjWcKyLl6i3gPqKANCCn5e9xmviEEeX6s=
+github.com/klauspost/compress v1.13.6 h1:P76CopJELS0TiO2mebmnzgWaajssP/EszplttgQxcgc=
-github.com/klauspost/compress v1.13.4/go.mod h1:8dP1Hq4DHOhN9w426knH3Rhby4rFm6D8eO+e+Dq5Gzg=
+github.com/klauspost/compress v1.13.6/go.mod h1:/3/Vjq9QcHkK5uEr5lBEmyoZ1iFhe47etQ6QUkpK6sk=
 github.com/klauspost/cpuid v1.2.0/go.mod h1:Pj4uuM528wm8OyEC2QMXAi2YiTZ96dNQPGgoMS4s3ek=
 github.com/klauspost/pgzip v1.2.4/go.mod h1:Ch1tH69qFZu15pkjo5kYi6mth2Zzwzt50oCQKQE9RUs=
 github.com/klauspost/pgzip v1.2.5 h1:qnWYvvKqedOF2ulHpMG72XQol4ILEJ8k2wwRl/Km8oE=
@@ -75,8 +74,8 @@ github.com/mattn/go-colorable v0.1.8/go.mod h1:u6P/XSegPjTcexA+o6vUJrdnUu04hMope
 github.com/mattn/go-isatty v0.0.8/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s=
 github.com/mattn/go-isatty v0.0.9/go.mod h1:YNRxwqDuOph6SZLI9vUUz6OYw3QyUt7WiY2yME+cCiQ=
 github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU=
-github.com/mattn/go-isatty v0.0.13 h1:qdl+GuBjcsKKDco5BsxPJlId98mSWNKqYA+Co0SC1yA=
+github.com/mattn/go-isatty v0.0.14 h1:yVuAays6BHfxijgZPzw+3Zlu5yQgKGP2/hcQbHb7S9Y=
-github.com/mattn/go-isatty v0.0.13/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU=
+github.com/mattn/go-isatty v0.0.14/go.mod h1:7GGIvUiUoEMVVmxf/4nioHXj79iQHKdU27kJ6hsGG94=
 github.com/mholt/archiver/v3 v3.5.0 h1:nE8gZIrw66cu4osS/U7UW7YDuGMHssxKutU8IfWxwWE=
 github.com/mholt/archiver/v3 v3.5.0/go.mod h1:qqTTPUK/HZPFgFQ/TJ3BzvTpF/dPtFVJXdQbCmeMxwc=
 github.com/microcosm-cc/bluemonday v1.0.15 h1:J4uN+qPng9rvkBZBoBb8YGR+ijuklIMpSOZZLjYpbeY=
@@ -122,13 +121,13 @@ github.com/yuin/goldmark v1.3.5/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1
 go.uber.org/atomic v1.7.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
 go.uber.org/atomic v1.9.0 h1:ECmE8Bn/WFTYwEW/bpKD3M8VtR/zQVbavAoalC1PYyE=
 go.uber.org/atomic v1.9.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
-go.uber.org/goleak v1.1.10 h1:z+mqJhf6ss6BSfSM671tgKyZBFPTTJM+HLxnhPC3wu0=
+go.uber.org/goleak v1.1.11-0.20210813005559-691160354723 h1:sHOAIxRGBp443oHZIPB+HsUGaksVCXVQENPxwTfQdH4=
-go.uber.org/goleak v1.1.10/go.mod h1:8a7PlsEVH3e/a/GLqe5IIrQx6GzcnRmZEufDUTk4A7A=
+go.uber.org/goleak v1.1.11-0.20210813005559-691160354723/go.mod h1:cwTWslyiVhfpKIDGSZEM2HlOvcqm+tG4zioyIeLoqMQ=
 go.uber.org/multierr v1.6.0/go.mod h1:cdWPpRnG4AhwMwsgIHip0KRBQjJy5kYEpYjJxpXp9iU=
 go.uber.org/multierr v1.7.0 h1:zaiO/rmgFjbmCXdSYJWQcdvOCsthmdaHfr3Gm2Kx4Ec=
 go.uber.org/multierr v1.7.0/go.mod h1:7EAYxJLBy9rStEaz58O2t4Uvip6FSURkq8/ppBp95ak=
-go.uber.org/zap v1.19.0 h1:mZQZefskPPCMIBCSEH0v2/iUqqLrYtaeqwD6FUGUnFE=
+go.uber.org/zap v1.19.1 h1:ue41HOKd1vGURxrmeKIgELGb3jPW9DMUDGtsinblHwI=
-go.uber.org/zap v1.19.0/go.mod h1:xg/QME4nWcxGxrpdeYfq7UvYrLh66cuVKdrbD1XF/NI=
+go.uber.org/zap v1.19.1/go.mod h1:j3DNczoxDZroyBnOT1L/Q79cfUMGZxlv/9dzN7SM1rI=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20210322153248-0c34fe9e7dc2/go.mod h1:T9bdIzuCu7OtxOm1hfPfRQxPLYneinmdGuTeoZ9dtd4=
@@ -138,7 +137,6 @@ golang.org/x/image v0.0.0-20190823064033-3a9bac650e44/go.mod h1:FeLwcggjj3mMvU+o
 golang.org/x/image v0.0.0-20210220032944-ac19c3e999fb/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
 golang.org/x/image v0.0.0-20210628002857-a66eb6448b8d h1:RNPAfi2nHY7C2srAV8A49jpsYr0ADedCk1wq6fTMTvs=
 golang.org/x/image v0.0.0-20210628002857-a66eb6448b8d/go.mod h1:023OzeP/+EPmXeapQh35lcL3II3LrY8Ic+EFFKVhULM=
-golang.org/x/lint v0.0.0-20190930215403-16217165b5de h1:5hukYrvBGR8/eNkX5mdUezrA6JiaEZDtJb9Ei+1LlBs=
 golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
 golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
@@ -166,6 +164,7 @@ golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210525143221-35b2ab0089ea/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210820121016-41cdb8703e55 h1:rw6UNGRMfarCepjI8qOepea/SXwIBVfTKjztZ5gBbq4=
 golang.org/x/sys v0.0.0-20210820121016-41cdb8703e55/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
@@ -179,9 +178,7 @@ golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
 golang.org/x/time v0.0.0-20201208040808-7e3f01d25324/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
-golang.org/x/tools v0.0.0-20191108193012-7d206e10da11/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
-golang.org/x/tools v0.1.5 h1:ouewzE6p+/VEB31YYnTbEJdi8pFqKp4P4n85vwo3DHA=
 golang.org/x/tools v0.1.5/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=

pkg/modules/api/context.go

@@ -125,10 +125,9 @@ func newContext(echoCtx echo.Context, logger *zap.Logger, timeout time.Duration)
 	copyToDisk := func(fh *multipart.FileHeader) error {
 		// Avoid directory traversal and normalize filename.
 		// See https://github.com/gotenberg/gotenberg/issues/104.
-		// See https://github.com/gotenberg/gotenberg/issues/228.
 		t := transform.Chain(norm.NFD, runes.Remove(runes.In(unicode.Mn)), norm.NFC)
 
-		filename, _, err := transform.String(t, strings.ToLower(filepath.Base(fh.Filename)))
+		filename, _, err := transform.String(t, filepath.Base(fh.Filename))
 		if err != nil {
 			return fmt.Errorf("transform filename: %w", err)
 		}

pkg/modules/api/formdata.go

@@ -396,7 +396,9 @@ func (form *FormData) mustAssign(key, value string, target interface{}) *FormDat
 // path binds the absolute path of a form data file to a string variable.
 func (form *FormData) path(filename string, target *string) *FormData {
 	for name, path := range form.files {
-		if name == filename {
+		// See https://github.com/gotenberg/gotenberg/issues/228.
+		nameLowerExt := strings.TrimSuffix(name, filepath.Ext(name)) + strings.ToLower(filepath.Ext(name))
+		if name == filename || nameLowerExt == filename {
 			*target = path
 			return form
 		}

pkg/modules/api/formdata_test.go

@@ -850,6 +850,7 @@ func TestFormData_MandatoryPath(t *testing.T) {
 func TestFormData_Content(t *testing.T) {
 	for i, tc := range []struct {
 		form         *FormData
+		filename     string
 		defaultValue string
 		expect       string
 		expectErr    bool
@@ -863,6 +864,7 @@ func TestFormData_Content(t *testing.T) {
 					"bar": "/bar",
 				},
 			},
+			filename: "foo",
 		},
 		{
 			form: &FormData{
@@ -870,6 +872,7 @@ func TestFormData_Content(t *testing.T) {
 					"bar": "/bar",
 				},
 			},
+			filename:     "foo",
 			defaultValue: "foo",
 			expect:       "foo",
 		},
@@ -879,6 +882,7 @@ func TestFormData_Content(t *testing.T) {
 					"foo": "/foo",
 				},
 			},
+			filename:  "foo",
 			expectErr: true,
 		},
 		{
@@ -887,12 +891,31 @@ func TestFormData_Content(t *testing.T) {
 					"foo": "/tests/test/testdata/api/sample1.txt",
 				},
 			},
-			expect: "foo",
+			filename: "foo",
+			expect:   "foo",
+		},
+		{
+			form: &FormData{
+				files: map[string]string{
+					"foo.TXT": "/tests/test/testdata/api/sample1.txt",
+				},
+			},
+			filename: "foo.txt",
+			expect:   "foo",
+		},
+		{
+			form: &FormData{
+				files: map[string]string{
+					"foo.txt": "/tests/test/testdata/api/sample1.txt",
+				},
+			},
+			filename: "foo.txt",
+			expect:   "foo",
 		},
 	} {
 		var actual string
 
-		tc.form.Content("foo", &actual, tc.defaultValue)
+		tc.form.Content(tc.filename, &actual, tc.defaultValue)
 
 		if actual != tc.expect {
 			t.Errorf("test %d: expected '%s' but got '%s'", i, tc.expect, actual)
@@ -911,11 +934,13 @@ func TestFormData_Content(t *testing.T) {
 func TestFormData_MandatoryContent(t *testing.T) {
 	for i, tc := range []struct {
 		form      *FormData
+		filename  string
 		expect    string
 		expectErr bool
 	}{
 		{
 			form:      &FormData{},
+			filename:  "foo",
 			expectErr: true,
 		},
 		{
@@ -924,6 +949,7 @@ func TestFormData_MandatoryContent(t *testing.T) {
 					"bar": "/bar",
 				},
 			},
+			filename:  "foo",
 			expectErr: true,
 		},
 		{
@@ -932,6 +958,7 @@ func TestFormData_MandatoryContent(t *testing.T) {
 					"foo": "/foo",
 				},
 			},
+			filename:  "foo",
 			expectErr: true,
 		},
 		{
@@ -940,12 +967,31 @@ func TestFormData_MandatoryContent(t *testing.T) {
 					"foo": "/tests/test/testdata/api/sample1.txt",
 				},
 			},
-			expect: "foo",
+			filename: "foo",
+			expect:   "foo",
+		},
+		{
+			form: &FormData{
+				files: map[string]string{
+					"foo.TXT": "/tests/test/testdata/api/sample1.txt",
+				},
+			},
+			filename: "foo.txt",
+			expect:   "foo",
+		},
+		{
+			form: &FormData{
+				files: map[string]string{
+					"foo.txt": "/tests/test/testdata/api/sample1.txt",
+				},
+			},
+			filename: "foo.txt",
+			expect:   "foo",
 		},
 	} {
 		var actual string
 
-		tc.form.MandatoryContent("foo", &actual)
+		tc.form.MandatoryContent(tc.filename, &actual)
 
 		if actual != tc.expect {
 			t.Errorf("test %d: expected '%s' but got '%s'", i, tc.expect, actual)
@@ -995,6 +1041,21 @@ func TestFormData_Paths(t *testing.T) {
 			},
 			expectCount: 2,
 		},
+		{
+			form: &FormData{
+				files: map[string]string{
+					"foo.zip": "/foo.zip",
+					"b.PDF":   "/b.PDF",
+					"a.pdf":   "/a.pdf",
+				},
+			},
+			extensions: []string{".pdf"},
+			expect: []string{
+				"/a.pdf",
+				"/b.PDF",
+			},
+			expectCount: 2,
+		},
 	} {
 		var actual []string
 
@@ -1051,6 +1112,21 @@ func TestFormData_MandatoryPaths(t *testing.T) {
 			},
 			expectCount: 2,
 		},
+		{
+			form: &FormData{
+				files: map[string]string{
+					"foo.zip": "/foo.zip",
+					"b.PDF":   "/b.PDF",
+					"a.pdf":   "/a.pdf",
+				},
+			},
+			extensions: []string{".pdf"},
+			expect: []string{
+				"/a.pdf",
+				"/b.PDF",
+			},
+			expectCount: 2,
+		},
 	} {
 		var actual []string
 

pkg/modules/api/middlewares_test.go

@@ -111,7 +111,7 @@ func TestHttpErrorHandler(t *testing.T) {
 
 		func() {
 			rand.Seed(time.Now().UnixNano())
-			webhookPort := rand.Intn(65535 - 1025 + 1) + 1025
+			webhookPort := rand.Intn(65535-1025+1) + 1025
 
 			tc.webhookClient.errorURL = fmt.Sprintf(tc.webhookClient.errorURL, webhookPort)
 
@@ -825,7 +825,7 @@ func TestContextMiddlewareWithWebhook(t *testing.T) {
 			webhook.HidePort = true
 
 			rand.Seed(time.Now().UnixNano())
-			webhookPort := rand.Intn(65535 - 1025 + 1) + 1025
+			webhookPort := rand.Intn(65535-1025+1) + 1025
 
 			if tc.autoWebhookURLs {
 				c.Request().Header.Set("Gotenberg-Webhook-Url", fmt.Sprintf("http://localhost:%d/", webhookPort))

pkg/modules/chromium/chromium.go

@@ -45,14 +45,15 @@ var (
 // Chromium is a module which provides both an API and routes for converting
 // HTML document to PDF.
 type Chromium struct {
-	binPath                 string
+	binPath                  string
-	engine                  gotenberg.PDFEngine
+	engine                   gotenberg.PDFEngine
-	userAgent               string
+	userAgent                string
-	incognito               bool
+	incognito                bool
-	ignoreCertificateErrors bool
+	ignoreCertificateErrors  bool
-	allowList               *regexp.Regexp
+	allowFileAccessFromFiles bool
-	denyList                *regexp.Regexp
+	allowList                *regexp.Regexp
-	disableRoutes           bool
+	denyList                 *regexp.Regexp
+	disableRoutes            bool
 }
 
 // Options are the available options for converting HTML document to PDF.
@@ -183,6 +184,7 @@ func (mod Chromium) Descriptor() gotenberg.ModuleDescriptor {
 			fs.String("chromium-user-agent", "", "Override the default User-Agent header")
 			fs.Bool("chromium-incognito", false, "Start Chromium with incognito mode")
 			fs.Bool("chromium-ignore-certificate-errors", false, "Ignore the certificate errors")
+			fs.Bool("chromium-allow-file-access-from-files", false, "Allow file:// URIs to read other file:// URIs")
 			fs.String("chromium-allow-list", "", "Set the allowed URLs for Chromium using a regular expression")
 			fs.String("chromium-deny-list", "^file:///[^tmp].*", "Set the denied URLs for Chromium using a regular expression")
 			fs.Bool("chromium-disable-routes", false, "Disable the routes")
@@ -197,6 +199,7 @@ func (mod Chromium) Descriptor() gotenberg.ModuleDescriptor {
 func (mod *Chromium) Provision(ctx *gotenberg.Context) error {
 	flags := ctx.ParsedFlags()
 	mod.ignoreCertificateErrors = flags.MustBool("chromium-ignore-certificate-errors")
+	mod.allowFileAccessFromFiles = flags.MustBool("chromium-allow-file-access-from-files")
 	mod.allowList = flags.MustRegexp("chromium-allow-list")
 	mod.denyList = flags.MustRegexp("chromium-deny-list")
 	mod.disableRoutes = flags.MustBool("chromium-disable-routes")
@@ -287,6 +290,11 @@ func (mod Chromium) PDF(ctx context.Context, logger *zap.Logger, URL, outputPath
 		args = append(args, chromedp.IgnoreCertErrors)
 	}
 
+	if mod.allowFileAccessFromFiles {
+		// See https://github.com/gotenberg/gotenberg/issues/356.
+		args = append(args, chromedp.Flag("allow-file-access-from-files", true))
+	}
+
 	allocatorCtx, cancel := chromedp.NewExecAllocator(ctx, args...)
 	defer cancel()
 
@@ -355,6 +363,31 @@ func (mod Chromium) PDF(ctx context.Context, logger *zap.Logger, URL, outputPath
 
 				return fmt.Errorf("wait for events: %w", err)
 			}),
+			chromedp.ActionFunc(func(ctx context.Context) error {
+				// See:
+				// https://github.com/gotenberg/gotenberg/issues/354
+				// https://github.com/puppeteer/puppeteer/issues/2685
+				// https://github.com/chromedp/chromedp/issues/520
+				script := `
+(() => {
+	const css = 'html { -webkit-print-color-adjust: exact !important; }';
+
+	const style = document.createElement('style');
+	style.type = 'text/css';
+	style.appendChild(document.createTextNode(css));
+	document.head.appendChild(style);
+})();
+`
+
+				evaluate := chromedp.Evaluate(script, nil)
+				err := evaluate.Do(ctx)
+
+				if err == nil {
+					return nil
+				}
+
+				return fmt.Errorf("add CSS for exact colors: %w", err)
+			}),
 			chromedp.ActionFunc(func(ctx context.Context) error {
 				if options.WaitDelay > 0 {
 					// We wait for a given amount of time so that JavaScript

pkg/modules/chromium/chromium_test.go

@@ -210,16 +210,17 @@ func TestChromium_Routes(t *testing.T) {
 
 func TestChromium_PDF(t *testing.T) {
 	for i, tc := range []struct {
-		timeout                 time.Duration
+		timeout                  time.Duration
-		cancel                  context.CancelFunc
+		cancel                   context.CancelFunc
-		URL                     string
+		URL                      string
-		options                 Options
+		options                  Options
-		userAgent               string
+		userAgent                string
-		incognito               bool
+		incognito                bool
-		ignoreCertificateErrors bool
+		ignoreCertificateErrors  bool
-		allowList               *regexp.Regexp
+		allowFileAccessFromFiles bool
-		denyList                *regexp.Regexp
+		allowList                *regexp.Regexp
-		expectErr               bool
+		denyList                 *regexp.Regexp
+		expectErr                bool
 	}{
 		{
 			URL:       "file:///tests/test/testdata/chromium/html/sample4/index.html",
@@ -275,10 +276,11 @@ func TestChromium_PDF(t *testing.T) {
 			expectErr: true,
 		},
 		{
-			URL:                     "file:///tests/test/testdata/chromium/html/sample4/index.html",
+			URL:                      "file:///tests/test/testdata/chromium/html/sample4/index.html",
-			userAgent:               "foo",
+			userAgent:                "foo",
-			incognito:               true,
+			incognito:                true,
-			ignoreCertificateErrors: true,
+			ignoreCertificateErrors:  true,
+			allowFileAccessFromFiles: true,
 		},
 		{
 			URL: "file:///tests/test/testdata/chromium/html/sample1/index.html",
@@ -312,6 +314,16 @@ func TestChromium_PDF(t *testing.T) {
 				}(),
 			},
 		},
+		{
+			URL: "file:///tests/test/testdata/chromium/html/sample5/index.html",
+		},
+		{
+			URL:                      "file:///tests/test/testdata/chromium/html/sample6/index.html",
+			allowFileAccessFromFiles: true,
+		},
+		{
+			URL: "file:///tests/test/testdata/chromium/html/sample7/index.html",
+		},
 	} {
 		func() {
 			mod := new(Chromium)
@@ -319,6 +331,7 @@ func TestChromium_PDF(t *testing.T) {
 			mod.userAgent = tc.userAgent
 			mod.incognito = tc.incognito
 			mod.ignoreCertificateErrors = tc.ignoreCertificateErrors
+			mod.allowFileAccessFromFiles = tc.allowFileAccessFromFiles
 
 			if tc.allowList == nil {
 				tc.allowList = regexp.MustCompile("")

scripts/release.sh

@@ -26,6 +26,8 @@ docker buildx build \
   --build-arg PDFTK_VERSION="$PDFTK_VERSION" \
   --platform linux/amd64 \
   --platform linux/arm64 \
+  --platform linux/arm/v7 \
+  --platform linux/386 \
   -t "$DOCKER_REPOSITORY/gotenberg:latest" \
   -t "$DOCKER_REPOSITORY/gotenberg:${SEMVER[0]}" \
   -t "$DOCKER_REPOSITORY/gotenberg:${SEMVER[0]}.${SEMVER[1]}" \
@@ -39,6 +41,8 @@ docker buildx build \
   --build-arg GOTENBERG_VERSION="$GOTENBERG_VERSION" \
   --platform linux/amd64 \
   --platform linux/arm64 \
+  --platform linux/arm/v7 \
+  --platform linux/386 \
   -t "$DOCKER_REPOSITORY/gotenberg:latest-cloudrun" \
   -t "$DOCKER_REPOSITORY/gotenberg:${SEMVER[0]}-cloudrun" \
   -t "$DOCKER_REPOSITORY/gotenberg:${SEMVER[0]}.${SEMVER[1]}-cloudrun" \

test/testdata/chromium/html/sample1/index.html

@@ -32,7 +32,7 @@
 
 <div class="center">
     <h1>This image is loaded from a URL</h1>
-    <img src="https://gutendev.com/wp-content/uploads/2018/10/01_03-1.jpg">
+    <img src="https://user-images.githubusercontent.com/8983173/130322857-185831e2-f041-46eb-a17f-0a69d066c4e5.png">
 </div>
 </body>
 </html>

test/testdata/chromium/html/sample5/index.html

@@ -0,0 +1,11 @@
+<!doctype html>
+<html lang="en">
+<head>
+    <meta charset="utf-8">
+    <title>Gutenberg</title>
+</head>
+<body>
+    <h1>Gutenberg</h1>
+    <img src="MyImg.gif">
+</body>
+</html>

test/testdata/chromium/html/sample6/index.html

@@ -0,0 +1,20 @@
+<!doctype html>
+<html lang="en">
+<head>
+    <meta charset="utf-8">
+    <link rel="stylesheet" type="text/css" href="style.css">
+    <title>Gutenberg</title>
+</head>
+<body>
+<div class="center">
+    <h1>Gutenberg</h1>
+</div>
+
+<blockquote cite="https://sites.google.com/site/johanngutenbergper5/q">
+    <p>It is a press, certainly, but a press from which shall flow in inexhaustible streams...Through it, God will spread His Word. A spring of truth shall flow from it: like a new star it shall scatter the darkness of ignorance, and cause a light heretofore unknown to shine amongst men.</p>
+    <footer>— <a href="https://sites.google.com/site/johanngutenbergper5/q">Johannes Gutenberg</a></cite></footer>
+</blockquote>
+
+<script src="paged.polyfill.js"></script>
+</body>
+</html>

test/testdata/chromium/html/sample6/style.css

@@ -0,0 +1,7 @@
+body {
+    font-family: Arial, Helvetica, sans-serif;
+}
+
+.center {
+    text-align: center;
+}

test/testdata/chromium/html/sample7/index.html

@@ -0,0 +1,14 @@
+<!doctype html>
+<html lang="en">
+<head>
+    <meta charset="utf-8">
+    <title>Gutenberg</title>
+</head>
+<body>
+    <h1>Gutenberg</h1>
+    <p style="color: #d1d0d0;">
+        It is a press, certainly, but a press from which shall flow in inexhaustible streams...Through it, God will spread His Word. A spring of truth shall flow from it: like a new star it shall scatter the darkness of ignorance, and cause a light heretofore unknown to shine amongst men.
+    </p>
+</div>
+</body>
+</html>