From 9632b95e113a77159192d343ca8818f0c9284fb6 Mon Sep 17 00:00:00 2001
From: clerie <git@clerie.de>
Date: Sun, 24 Nov 2024 16:43:16 +0100
Subject: [PATCH] Init scan-to-gpg

---
 README.md |   8 +--
 go.mod    |  18 ++++--
 go.sum    |  23 +++++--
 main.go   | 183 +++++++++++++++++++++++++++++++++++++++++++++---------
 4 files changed, 188 insertions(+), 44 deletions(-)

diff --git a/README.md b/README.md
index fed366a..d9f10eb 100644
--- a/README.md
+++ b/README.md
@@ -1,18 +1,16 @@
-# ftp-http-forwarder
+# scan-to-gpg
 
 ## Usage
 
 ```
   -host string
     	Host (default "localhost")
-  -pass string
-    	Password for login (default "123456")
   -port int
     	Port (default 2121)
-  -target string
-    	target url
   -user string
     	Username for login (default "admin")
+  -pass string
+        Password for login (default "123456")
 
 ```
 
diff --git a/go.mod b/go.mod
index 8f49680..226546a 100644
--- a/go.mod
+++ b/go.mod
@@ -1,16 +1,22 @@
-module github.com/luelista/ftp-http-forwarder
+module clerie.de/scan-to-gpg
 
 go 1.20
 
-require goftp.io/server v0.4.1
+require (
+	github.com/ProtonMail/gopenpgp/v3 v3.0.0
+	goftp.io/server v0.4.1
+)
 
 require (
+	github.com/ProtonMail/go-crypto v1.1.0 // indirect
+	github.com/cloudflare/circl v1.3.7 // indirect
 	github.com/minio/minio-go/v6 v6.0.46 // indirect
 	github.com/minio/sha256-simd v0.1.1 // indirect
 	github.com/mitchellh/go-homedir v1.1.0 // indirect
-	golang.org/x/crypto v0.0.0-20190701094942-4def268fd1a4 // indirect
-	golang.org/x/net v0.0.0-20190724013045-ca1201d0de80 // indirect
-	golang.org/x/sys v0.0.0-20190726091711-fc99dfbffb4e // indirect
-	golang.org/x/text v0.3.2 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
+	golang.org/x/crypto v0.17.0 // indirect
+	golang.org/x/net v0.10.0 // indirect
+	golang.org/x/sys v0.16.0 // indirect
+	golang.org/x/text v0.14.0 // indirect
 	gopkg.in/ini.v1 v1.42.0 // indirect
 )
diff --git a/go.sum b/go.sum
index 2a1949f..78f0ed2 100644
--- a/go.sum
+++ b/go.sum
@@ -1,3 +1,9 @@
+github.com/ProtonMail/go-crypto v1.1.0 h1:OnlSGxXflfrWJESDsGQOmACNQRM9IflG3q8XTrOqvbE=
+github.com/ProtonMail/go-crypto v1.1.0/go.mod h1:rA3QumHc/FZ8pAHreoekgiAbzpNsfQAosU5td4SnOrE=
+github.com/ProtonMail/gopenpgp/v3 v3.0.0 h1:lqsrNKFv0U4tRYRdaMA8qzh3TACaDTg3iJiv7MFFmuM=
+github.com/ProtonMail/gopenpgp/v3 v3.0.0/go.mod h1:XXZYIzOSEtEhKCyDcq/xepg3zuANcL5amIjwF4XZbNg=
+github.com/cloudflare/circl v1.3.7 h1:qlCDlTPz2n9fu58M0Nh1J/JzcFpfgkFHHX3O35r5vcU=
+github.com/cloudflare/circl v1.3.7/go.mod h1:sRTcRWXGLrKw6yIGJ+l7amYJFfAXbZG0kBSc8r4zxgA=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
@@ -15,6 +21,8 @@ github.com/minio/sha256-simd v0.1.1 h1:5QHSlgo3nt5yKOJrC7W8w7X+NFl8cMPZm96iu8kKU
 github.com/minio/sha256-simd v0.1.1/go.mod h1:B5e1o+1/KgNmWrSQK08Y6Z1Vb5pwIktudl0J58iy0KM=
 github.com/mitchellh/go-homedir v1.1.0 h1:lukF9ziXFxDFPkA1vsr5zpc1XuPDn/wFntq5mG+4E0Y=
 github.com/mitchellh/go-homedir v1.1.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0=
+github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
+github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE=
@@ -25,28 +33,33 @@ github.com/smartystreets/goconvey v0.0.0-20190330032615-68dc04aab96a/go.mod h1:s
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
-github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0Q=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
+github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
 goftp.io/server v0.4.1 h1:x7KG4HIxSMdK/rpYhExMinRN/aO/T9icvaG/B5e/XfY=
 goftp.io/server v0.4.1/go.mod h1:hFZeR656ErRt3ojMKt7H10vQ5nuWV1e0YeUTeorlR6k=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20190513172903-22d7a77e9e5f/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
-golang.org/x/crypto v0.0.0-20190701094942-4def268fd1a4 h1:HuIa8hRrWRSrqYzx1qI49NNxhdi2PrY7gxVSq1JjLDc=
 golang.org/x/crypto v0.0.0-20190701094942-4def268fd1a4/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
+golang.org/x/crypto v0.17.0 h1:r8bRNjWL3GshPW3gkd+RpvzWrZAwPS49OmTGZ/uhM4k=
+golang.org/x/crypto v0.17.0/go.mod h1:gCAAfMLgwOJRpTjQ2zCCt2OcSfYMTeZVSRtQlPC7Nq4=
 golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190522155817-f3200d17e092/go.mod h1:HSz+uSET+XFnRR8LxR5pz3Of3rY3CfYBVs4xY44aLks=
-golang.org/x/net v0.0.0-20190724013045-ca1201d0de80 h1:Ao/3l156eZf2AW5wK8a7/smtodRU+gha3+BeqJ69lRk=
 golang.org/x/net v0.0.0-20190724013045-ca1201d0de80/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
+golang.org/x/net v0.10.0 h1:X2//UzNDwYmtCLn7To6G58Wr6f5ahEAQgKNzv9Y951M=
+golang.org/x/net v0.10.0/go.mod h1:0qNGK6F8kojg2nk9dLZ2mShWaEBan6FAoqfSigmmuDg=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190422165155-953cdadca894/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20190726091711-fc99dfbffb4e h1:D5TXcfTk7xF7hvieo4QErS3qqCB4teTffacDWr7CI+0=
 golang.org/x/sys v0.0.0-20190726091711-fc99dfbffb4e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.16.0 h1:xWw16ngr6ZMtmxDyKyIgsE93KNKz5HKmMa3b8ALHidU=
+golang.org/x/sys v0.16.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
-golang.org/x/text v0.3.2 h1:tW2bmiBqwgJj/UpqtC8EpXEZVYOwU0yG4iWbprSVAcs=
 golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
+golang.org/x/text v0.14.0 h1:ScX5w1eTa3QqT8oi6+ziP7dTV1S2+ALU0bI+0zXKWiQ=
+golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20190328211700-ab21143f2384/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
 gopkg.in/ini.v1 v1.42.0 h1:7N3gPTt50s8GuLortA00n8AqRTk75qOP98+mTPpgzRk=
 gopkg.in/ini.v1 v1.42.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
diff --git a/main.go b/main.go
index 0b6446e..9a22d17 100644
--- a/main.go
+++ b/main.go
@@ -3,21 +3,17 @@ package main
 import (
 	"errors"
 	"io"
+	"io/ioutil"
 	"os"
 	"time"
-	//"strings"
-    "net/url"
-    "net/http"
-    "flag"
-    "log"
-    "fmt"
+	"flag"
+	"log"
 	"path/filepath"
-	"strings"
 	"goftp.io/server"
+	"github.com/ProtonMail/gopenpgp/v3/crypto"
 )
 
 type ForwarderDriver struct {
-	TargetURL string
 	server.Perm
 }
 
@@ -103,36 +99,169 @@ func (driver *ForwarderDriver) GetFile(path string, offset int64) (int64, io.Rea
 
 func (driver *ForwarderDriver) PutFile(destPath string, data io.Reader, appendData bool) (int64, error) {
 	log.Printf("Forwarding %v (%v)", destPath, filepath.Base(destPath))
-	destUrl := strings.Replace(strings.Replace(
-		driver.TargetURL, 
-		"{escaped_path}", url.QueryEscape(destPath), -1),
-		"{escaped_name}", url.QueryEscape(filepath.Base(destPath)), -1)
-	log.Printf("Dest URL %v", destUrl)
-    client := &http.Client{}
-    req, err := http.NewRequest("PUT", destUrl, data)
-    resp, err := client.Do(req)
 
-    log.Printf("Status: %v, Transferred bytes: %v, errmes: %v", resp.Status, resp.Request.ContentLength, err)
-    if resp.StatusCode >= 300 {
-	return 0, fmt.Errorf("server returned error status %s", resp.Status)
-    }
-    return resp.Request.ContentLength, err
+	log.Printf("ReadAll…")
+	contents, err := ioutil.ReadAll(data)
+	if err != nil {
+		log.Printf("Error: %v", err)
+		return 0, err
+	}
+
+	pubkey := `-----BEGIN PGP PUBLIC KEY BLOCK-----
+
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+=NbZJ
+-----END PGP PUBLIC KEY BLOCK-----`
+
+	log.Printf("NewKeyFromArmored…")
+	publicKey, err := crypto.NewKeyFromArmored(pubkey)
+	if err != nil {
+		log.Printf("Error: %v", err)
+		return 0, err
+	}
+	log.Printf("crypto.PGP…")
+	pgp := crypto.PGP()
+	encHandle, err := pgp.Encryption().Recipient(publicKey).New()
+	if err != nil {
+		log.Printf("Error: %v", err)
+		return 0, err
+	}
+	log.Printf("Encrypt…")
+	pgpMessage, err := encHandle.Encrypt(contents)
+	if err != nil {
+		log.Printf("Error: %v", err)
+		return 0, err
+	}
+	log.Printf("ArmorBytes…")
+	armored, err := pgpMessage.ArmorBytes()
+	if err != nil {
+		log.Printf("Error: %v", err)
+		return 0, err
+	}
+
+	log.Printf("WriteFile…")
+	os.WriteFile("file.txt", armored, 0666)
+
+	log.Printf("Status: %v, Transferred bytes: %v, errmes: %v", 0, len(contents), err)
+	return int64(len(contents)), err
 }
 
 type ForwarderDriverFactory struct {
-	TargetURL string
 	server.Perm
 }
 
 func (factory *ForwarderDriverFactory) NewDriver() (server.Driver, error) {
-	return &ForwarderDriver{factory.TargetURL, factory.Perm}, nil
+	return &ForwarderDriver{factory.Perm}, nil
 }
 
 
 func main() {
 
 	var (
-		target = flag.String("target", "", "target url")
 		user = flag.String("user", "admin", "Username for login")
 		pass = flag.String("pass", "123456", "Password for login")
 		port = flag.Int("port", 2121, "Port")
@@ -140,10 +269,8 @@ func main() {
 		passiveports = flag.String("passiveports", "2130-2134", "Passive ports")
 	)
 	flag.Parse()
-	if *target == "" {
-		log.Fatalf("Please set a target url with -target")
-	}
-	factory := &ForwarderDriverFactory{TargetURL: *target, Perm: server.NewSimplePerm("user","group")}
+
+	factory := &ForwarderDriverFactory{Perm: server.NewSimplePerm("user","group")}
 
 	opts := &server.ServerOpts{
 		Factory:  factory,