Merge branch 'tierpod:master' into master

.github/workflows/build.yml

@@ -9,10 +9,10 @@ jobs:
 
     steps:
 
-    - name: Set up Go 1.20
-      uses: actions/setup-go@v3
+    - name: Set up Go 1.22
+      uses: actions/setup-go@v5
       with:
-        go-version: "1.20"
+        go-version: "1.22"
       id: go
 
     - name: Check out code into the Go module directory
@@ -31,7 +31,7 @@ jobs:
         make release
 
     - name: Create release and upload assets if tag is defined
-      uses: softprops/action-gh-release@v1
+      uses: softprops/action-gh-release@v2
       if: startsWith(github.ref, 'refs/tags/')
       env:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

Makefile

@@ -9,6 +9,8 @@ GIT_VER    := $(shell basename $(GITHUB_REF))-$(shell date +%Y%m%d)
 endif
 LDFLAGS    := -ldflags "-X main.version=$(GIT_VER)"
 
+CGO_ENABLED := 0
+
 .PHONY: test
 test:
 	find ./cmd ./pkg -type f -name '*.go' | xargs gofmt -l -e
@@ -17,10 +19,10 @@ test:
 	go test -mod=vendor ./cmd/... ./pkg/...
 
 .PHONY: build
-build: test $(NAME)
+build: test bin/$(NAME)
 
 bin/$(NAME):
-	go build -mod=vendor -v $(LDFLAGS) -o $@ ./cmd/$(NAME)
+	CGO_ENABLED=$(CGO_ENABLED) go build -mod=vendor -v $(LDFLAGS) -o $@ ./cmd/$(NAME)
 
 .PHONY: clean
 clean:

README.md

@@ -15,6 +15,9 @@ Support input formats:
 
 * **.zip** file: zipped dmarc report in xml format
 
+* **.eml** file: an electronic mail format or email saved in plain text - dovecot-report-converter
+  tries to extract .xml, .gz or .zip attachments from found eml files to `input.dir`
+
 Support output formats:
 
 * **html_static** output file is a HTML, generated from builtin template htmlStaticTmpl (consts.go).
@@ -185,17 +188,17 @@ Building from sources
 2. Download sources:
 
    ```bash
-   go get -u github.com/tierpod/dmarc-report-converter
+   git clone https://github.com/tierpod/dmarc-report-converter.git
    ```
 
 3. Build binary and create installation archive:
 
    ```bash
-   cd $HOME/go/src/github.com/tierpod/dmarc-report-converter
+   cd dmarc-report-converter
    make release
    ```
 
-4. Installation archive will be places inside _release_ directory. Also, if you want to test
+4. Installation archive will be places inside _dist_ directory. Also, if you want to test
    dmarc-report-converter without installation, you can execute:
 
    ```bash

cmd/dmarc-report-converter/config.go

@@ -3,7 +3,7 @@ package main
 import (
 	"fmt"
 	"html/template"
-	"io/ioutil"
+	"os"
 	"time"
 
 	"gopkg.in/yaml.v2"
@@ -62,7 +62,7 @@ func (o *Output) isStdout() bool {
 func loadConfig(path string) (*config, error) {
 	var c config
 
-	data, err := ioutil.ReadFile(path)
+	data, err := os.ReadFile(path)
 	if err != nil {
 		return nil, err
 	}
@@ -88,7 +88,7 @@ func loadConfig(path string) (*config, error) {
 		if c.Output.ExternalTemplate == "" {
 			return nil, fmt.Errorf("'output.external_template' must be configured to use external_template output")
 		}
-		data, err := ioutil.ReadFile(c.Output.ExternalTemplate)
+		data, err := os.ReadFile(c.Output.ExternalTemplate)
 		if err != nil {
 			return nil, err
 		}

cmd/dmarc-report-converter/files.go

@@ -54,6 +54,37 @@ func (c *filesConverter) ConvertWrite() error {
 }
 
 func (c *filesConverter) find() error {
+	emlFiles, err := filepath.Glob(filepath.Join(c.cfg.Input.Dir, "*.eml"))
+	if err != nil {
+		return err
+	}
+	if len(emlFiles) > 0 {
+		log.Printf("[INFO] files: found %d eml file(s), extract attachments to %v", len(emlFiles), c.cfg.Input.Dir)
+		for _, eml := range emlFiles {
+			br, err := os.Open(eml)
+			if err != nil {
+				log.Printf("[ERROR] files: unable to extract attachments from %v", eml)
+				continue
+			}
+
+			isSuccess, err := extractAttachment(br, c.cfg.Input.Dir)
+			if err != nil {
+				log.Printf("[ERROR] files: %v, skip", err)
+				continue
+			}
+
+			if isSuccess && c.cfg.Input.Delete {
+				log.Printf("[DEBUG] files: delete %v", eml)
+				err := os.Remove(eml)
+				if err != nil {
+					log.Printf("[ERROR] files: %v", err)
+					continue
+				}
+			}
+			br.Close()
+		}
+	}
+
 	files, err := filepath.Glob(filepath.Join(c.cfg.Input.Dir, "*.*"))
 	if err != nil {
 		return err

cmd/dmarc-report-converter/imap.go

@@ -86,53 +86,10 @@ func fetchIMAPAttachments(cfg *config) error {
 			return fmt.Errorf("server didn't return message body")
 		}
 
-		// create a new mail reader
-		mr, err := mail.CreateReader(br)
+		isSuccess, err := extractAttachment(br, cfg.Input.Dir)
 		if err != nil {
-			return err
-		}
-
-		// process each message's part
-		isSuccess := false
-		for {
-			p, err := mr.NextPart()
-			if err == io.EOF {
-				break
-			} else if err != nil {
-				log.Printf("[ERROR] imap: can't read next part: %v, skip", err)
-				break
-			}
-
-			switch h := p.Header.(type) {
-			case mail.AttachmentHeader:
-				// this is an attachment
-				filename, err := h.Filename()
-				if err != nil {
-					log.Printf("[ERROR] imap: %v, skip", err)
-					continue
-				}
-				log.Printf("[INFO] imap: found attachment: %v", filename)
-
-				outFile := filepath.Join(cfg.Input.Dir, filename)
-				log.Printf("[INFO] imap: save attachment to: %v", outFile)
-				f, err := os.Create(outFile)
-				if err != nil {
-					log.Printf("[ERROR] imap: %v, skip", err)
-					continue
-				}
-
-				_, err = io.Copy(f, p.Body)
-				if err != nil {
-					log.Printf("[ERROR] imap: %v, skip", err)
-					continue
-				}
-				err = f.Close()
-				if err != nil {
-					log.Printf("[ERROR] imap: %v, skip", err)
-					continue
-				}
-				isSuccess = true
-			}
+			log.Printf("[ERROR] imap: %v, skip", err)
+			continue
 		}
 
 		if isSuccess && cfg.Input.IMAP.Delete {
@@ -168,3 +125,61 @@ func fetchIMAPAttachments(cfg *config) error {
 
 	return nil
 }
+
+func extractAttachment(r io.Reader, inputDir string) (bool, error) {
+	// Create a new mail reader
+	mr, err := mail.CreateReader(r)
+	if err != nil {
+		return false, err
+	}
+
+	// process each message's part
+	isSuccess := false
+	for {
+		p, err := mr.NextPart()
+		if err == io.EOF {
+			break
+		} else if err != nil {
+			log.Printf("[ERROR] imap: can't read next part: %v, skip", err)
+			break
+		}
+
+		switch h := p.Header.(type) {
+		case *mail.AttachmentHeader:
+			// this is an attachment
+			filename, err := h.Filename()
+			if err != nil {
+				log.Printf("[ERROR] extractAttachment: %v, skip", err)
+				continue
+			}
+			if filename == "" {
+				log.Printf("[WARN] extractAttachment: found attachment with empty filename, skip")
+				continue
+			}
+
+			log.Printf("[INFO] extractAttachment: found attachment: %v", filename)
+
+			outFile := filepath.Join(inputDir, filename)
+			log.Printf("[INFO] extractAttachment: save attachment to: %v", outFile)
+			f, err := os.Create(outFile)
+			if err != nil {
+				log.Printf("[ERROR] extractAttachment: %v, skip", err)
+				continue
+			}
+
+			_, err = io.Copy(f, p.Body)
+			if err != nil {
+				log.Printf("[ERROR] extractAttachment: %v, skip", err)
+				continue
+			}
+			err = f.Close()
+			if err != nil {
+				log.Printf("[ERROR] extractAttachment: %v, skip", err)
+				continue
+			}
+			isSuccess = true
+		}
+	}
+
+	return isSuccess, err
+}

cmd/dmarc-report-converter/main.go

@@ -7,6 +7,7 @@ import (
 	"log"
 	"os"
 
+	_ "github.com/emersion/go-message/charset"
 	"github.com/hashicorp/logutils"
 )
 

go.mod

@@ -3,11 +3,9 @@ module github.com/tierpod/dmarc-report-converter
 go 1.13
 
 require (
-	github.com/emersion/go-imap v1.0.0-beta.1.0.20180319181901-b63c7c7011cb
-	github.com/emersion/go-message v0.9.2-0.20180321173051-51445bfdc558
-	github.com/emersion/go-sasl v0.0.0-20161116183048-7e096a0a6197 // indirect
-	github.com/emersion/go-textwrapper v0.0.0-20160606182133-d0e65e56babe // indirect
-	github.com/hashicorp/logutils v0.0.0-20150609070431-0dc08b1671f3
-	golang.org/x/text v0.3.8 // indirect
-	gopkg.in/yaml.v2 v2.2.1
+	github.com/emersion/go-imap v1.2.1
+	github.com/emersion/go-message v0.18.0
+	github.com/emersion/go-sasl v0.0.0-20231106173351-e73c9f7bad43 // indirect
+	github.com/hashicorp/logutils v1.0.0
+	gopkg.in/yaml.v2 v2.4.0
 )

go.sum

@@ -1,39 +1,49 @@
-github.com/emersion/go-imap v1.0.0-beta.1.0.20180319181901-b63c7c7011cb h1:vrU9clcMQcyh/5CEKvIpig1zRmtDmyMcBY08MhhpvD8=
-github.com/emersion/go-imap v1.0.0-beta.1.0.20180319181901-b63c7c7011cb/go.mod h1:oydmHwiyv92ZOiNfQY9BDax5heePWN8P2+W1B2T6qjc=
-github.com/emersion/go-message v0.9.2-0.20180321173051-51445bfdc558 h1:lPY6awq1rK4xEF2Qfw7vV2HczOWQRul8v8xEmTtRxDs=
-github.com/emersion/go-message v0.9.2-0.20180321173051-51445bfdc558/go.mod h1:m3cK90skCWxm5sIMs1sXxly4Tn9Plvcf6eayHZJ1NzM=
-github.com/emersion/go-sasl v0.0.0-20161116183048-7e096a0a6197 h1:rDJPbyliyym8ZL/Wt71kdolp6yaD4fLIQz638E6JEt0=
-github.com/emersion/go-sasl v0.0.0-20161116183048-7e096a0a6197/go.mod h1:G/dpzLu16WtQpBfQ/z3LYiYJn3ZhKSGWn83fyoyQe/k=
-github.com/emersion/go-textwrapper v0.0.0-20160606182133-d0e65e56babe h1:40SWqY0zE3qCi6ZrtTf5OUdNm5lDnGnjRSq9GgmeTrg=
-github.com/emersion/go-textwrapper v0.0.0-20160606182133-d0e65e56babe/go.mod h1:aqO8z8wPrjkscevZJFVE1wXJrLpC5LtJG7fqLOsPb2U=
-github.com/hashicorp/logutils v0.0.0-20150609070431-0dc08b1671f3 h1:oD64EFjELI9RY9yoWlfua58r+etdnoIC871z+rr6lkA=
-github.com/hashicorp/logutils v0.0.0-20150609070431-0dc08b1671f3/go.mod h1:QIAnNjmIWmVIIkWDTG1z5v++HQmx9WQRO+LraFDTW64=
+github.com/emersion/go-imap v1.2.1 h1:+s9ZjMEjOB8NzZMVTM3cCenz2JrQIGGo5j1df19WjTA=
+github.com/emersion/go-imap v1.2.1/go.mod h1:Qlx1FSx2FTxjnjWpIlVNEuX+ylerZQNFE5NsmKFSejY=
+github.com/emersion/go-message v0.15.0/go.mod h1:wQUEfE+38+7EW8p8aZ96ptg6bAb1iwdgej19uXASlE4=
+github.com/emersion/go-message v0.18.0 h1:7LxAXHRpSeoO/Wom3ZApVZYG7c3d17yCScYce8WiXA8=
+github.com/emersion/go-message v0.18.0/go.mod h1:Zi69ACvzaoV/MBnrxfVBPV3xWEuCmC2nEN39oJF4B8A=
+github.com/emersion/go-sasl v0.0.0-20200509203442-7bfe0ed36a21/go.mod h1:iL2twTeMvZnrg54ZoPDNfJaJaqy0xIQFuBdrLsmspwQ=
+github.com/emersion/go-sasl v0.0.0-20231106173351-e73c9f7bad43 h1:hH4PQfOndHDlpzYfLAAfl63E8Le6F2+EL/cdhlkyRJY=
+github.com/emersion/go-sasl v0.0.0-20231106173351-e73c9f7bad43/go.mod h1:iL2twTeMvZnrg54ZoPDNfJaJaqy0xIQFuBdrLsmspwQ=
+github.com/emersion/go-textwrapper v0.0.0-20200911093747-65d896831594 h1:IbFBtwoTQyw0fIM5xv1HF+Y+3ZijDR839WMulgxCcUY=
+github.com/emersion/go-textwrapper v0.0.0-20200911093747-65d896831594/go.mod h1:aqO8z8wPrjkscevZJFVE1wXJrLpC5LtJG7fqLOsPb2U=
+github.com/hashicorp/logutils v1.0.0 h1:dLEQVugN8vlakKOUE3ihGLTZJRB4j+M2cdTm/ORI65Y=
+github.com/hashicorp/logutils v1.0.0/go.mod h1:QIAnNjmIWmVIIkWDTG1z5v++HQmx9WQRO+LraFDTW64=
 github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
 golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
+golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
 golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
+golang.org/x/net v0.6.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
+golang.org/x/term v0.5.0/go.mod h1:jMB1sMXY+tzblOD4FWmEbocvup2/aLOaQEp7JmGp78k=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
-golang.org/x/text v0.3.8 h1:nAL+RVCQ9uMn3vJZbV+MRnydTJFPf8qqY42YiA6MrqY=
-golang.org/x/text v0.3.8/go.mod h1:E6s5w1FMmriuDzIBO73fBruAKo1PCIq6d2Q6DHfQ8WQ=
+golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
+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 v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
+golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/yaml.v2 v2.2.1 h1:mUhvW9EsL+naU5Q3cakzfE91YhliOondGd6ZrsDBHQE=
-gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
+gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=

pkg/dmarc/dmarc.go

@@ -77,7 +77,11 @@ func (r *Report) CalculateStats() {
 		}
 	}
 	s.Failed = s.All - s.Passed
-	s.PassedPercent = math.Round((float64(s.Passed) / float64(s.All)) * 100)
+	if s.All == 0 {
+		s.PassedPercent = 0
+	} else {
+		s.PassedPercent = math.Round((float64(s.Passed) / float64(s.All)) * 100)
+	}
 
 	r.MessagesStats = *s
 }