tueem/svg-templater
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feat(template): add multi page upload capability
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This commit is contained in:
Tim Mueller
2026-05-27 00:59:25 +02:00
parent 7017af9f3f
commit 2aab1bcdd2
11 changed files with 306 additions and 89 deletions
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pkg/format/formatconverter.go
+2 -4
View File
@@ -55,10 +55,8 @@ func convertPNG(input string, param ConversionParameters) (io.ReadCloser, error)
var args []string
var outExt string
fontsdir, err := svg.Storage.GetFontsDir()
if err != nil {
return nil, err
}
fontsdir := svg.Storage.GetFontsDir()
args = append(args, "--skip-system-fonts")
args = append(args, "--use-fonts-dir", fontsdir)
pkg/svg/actions/delete.go
+11 -1
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@@ -2,6 +2,7 @@ package actions
import (
"log"
"strings"
"tomatentum.net/svg-templater/internal/database"
"tomatentum.net/svg-templater/pkg/svg"
@@ -12,9 +13,18 @@ func Delete(id string) (bool, error) {
return success, err
}
if err := svg.Storage.Delete(id); err != nil {
entries, err := svg.Storage.List()
if err != nil {
return false, err
}
for _, entry := range entries {
if strings.HasPrefix(entry.Name(), id) {
svg.Storage.Delete(entry.Name())
}
}
log.Println("Deleted SVG Template " + id)
return true, nil
}
pkg/svg/actions/page.go
+60
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@@ -0,0 +1,60 @@
package actions
import (
"bytes"
"fmt"
"log"
"regexp"
"strconv"
"tomatentum.net/svg-templater/internal/database"
"tomatentum.net/svg-templater/pkg/svg"
)
const FILEFORMAT string = "%s-%d"
func AddPage(id string, svgbuf []byte) (svg.TemplatePage, error) {
data := svg.TemplatePage{TemplateId: id}
populateKeys(&data, svgbuf)
page, err := database.InsertSVGPage(&data)
data.Page = page
if err != nil {
return svg.TemplatePage{}, err
}
_, err = svg.Storage.Create(fmt.Sprintf(FILEFORMAT, id, page), bytes.NewReader(svgbuf))
if err != nil {
return svg.TemplatePage{}, err
}
log.Println("Created SVG Template " + data.TemplateId + " Page " + strconv.Itoa(page))
return data, nil
}
func DeletePage(id string, page int) (bool, error) {
if success, err := database.DeleteSVGPage(id, page); err != nil || !success {
return success, err
}
if err := svg.Storage.Delete(fmt.Sprintf(FILEFORMAT, id, page)); err != nil {
return false, err
}
log.Println("Deleted SVG Template " + id + " page " + strconv.Itoa(page))
return true, nil
}
func populateKeys(data *svg.TemplatePage, svgblob []byte) {
regex := regexp.MustCompile(svg.KeyRegex)
result := regex.FindAllSubmatch(svgblob, -1)
templateKeys := make([]string, len(result))
for i, matches := range result {
varname := matches[1] // first capture group
templateKeys[i] = string(varname)
}
data.TemplateKeys = templateKeys
log.Println("Found keys:\n", templateKeys)
}
pkg/svg/actions/template.go
+1 -1
View File
@@ -57,7 +57,7 @@ func verifyTemplate(id string, keys []string) (bool, error) {
return false, err
}
for _, key := range data.TemplateKeys {
for _, key := range data.AllKeys() {
if !slices.Contains(keys, key) {
return false, nil
}
pkg/svg/actions/upload.go
+13 -21
View File
@@ -1,25 +1,30 @@
package actions
import (
"bytes"
"crypto/rand"
"encoding/hex"
"log"
"regexp"
"tomatentum.net/svg-templater/internal/database"
"tomatentum.net/svg-templater/pkg/svg"
)
func Create(svgbuf []byte, name string) (svg.TemplateData, error) {
data := svg.TemplateData{Id: generateId(), Name: name, TemplateKeys: nil}
populateKeys(&data, svgbuf)
func Create(svgbufs [][]byte, name string) (svg.TemplateData, error) {
id := generateId()
_, err := svg.Storage.Create(data.Id, bytes.NewReader(svgbuf))
if err != nil {
return svg.TemplateData{}, err
pages := make([]svg.TemplatePage, len(svgbufs))
for i, pagebuf := range svgbufs {
page, err := AddPage(id, pagebuf)
if err != nil {
return svg.TemplateData{}, err
}
pages[i] = page
}
data := svg.TemplateData{Id: id, Name: name, Pages: pages}
if err := database.InsertSVG(&data); err != nil {
return svg.TemplateData{}, err
}
@@ -28,19 +33,6 @@ func Create(svgbuf []byte, name string) (svg.TemplateData, error) {
return data, nil
}
func populateKeys(data *svg.TemplateData, svgblob []byte) {
regex := regexp.MustCompile(svg.KeyRegex)
result := regex.FindAllSubmatch(svgblob, -1)
templateKeys := make([]string, len(result))
for i, matches := range result {
varname := matches[1] // first capture group
templateKeys[i] = string(varname)
}
data.TemplateKeys = templateKeys
log.Println("Found keys:\n", templateKeys)
}
func generateId() string {
token := make([]byte, 16)
if _, err := rand.Read(token); err != nil {
pkg/svg/storage.go
+23 -12
View File
@@ -13,12 +13,13 @@ import (
)
type SvgStorage interface {
Create(id string, svg io.Reader) (string, error)
Get(id string) (io.ReadCloser, error)
Delete(id string) error
Create(name string, svg io.Reader) (string, error)
Get(name string) (io.ReadCloser, error)
Delete(name string) error
List() ([]os.DirEntry, error)
AddFont(reader io.Reader, format string) error
GetFonts() ([]string, error)
GetFontsDir() (string, error)
GetFontsDir() string
CreatePublic(data io.Reader, filetype string) (string, error)
GetPublic(path string) (io.ReadCloser, error)
GetPublicDir() http.Dir
@@ -44,8 +45,8 @@ func NewFileStorage(path, publicSubPath, fontssubpath string) *FileSvgStorage {
return &FileSvgStorage{path, publicSubPath, fontssubpath}
}
func (f FileSvgStorage) Create(id string, svg io.Reader) (string, error) {
file, err := os.Create(filepath.Join(f.basepath, id+".svg"))
func (f FileSvgStorage) Create(name string, svg io.Reader) (string, error) {
file, err := os.Create(filepath.Join(f.basepath, name+".svg"))
if err != nil {
return "", err
@@ -61,20 +62,30 @@ func (f FileSvgStorage) Create(id string, svg io.Reader) (string, error) {
return file.Name(), nil
}
func (f FileSvgStorage) Get(id string) (io.ReadCloser, error) {
file, err := os.Open(filepath.Join(f.basepath, id+".svg"))
func (f FileSvgStorage) Get(name string) (io.ReadCloser, error) {
file, err := os.Open(filepath.Join(f.basepath, name+".svg"))
if err != nil {
return nil, err
}
return file, nil
}
func (f FileSvgStorage) Delete(id string) error {
path := filepath.Join(f.basepath, id+".svg")
func (f FileSvgStorage) Delete(name string) error {
var path string
if strings.HasSuffix(name, ".svg") {
path = filepath.Join(f.basepath, name)
} else {
path = filepath.Join(f.basepath, name+".svg")
}
defer log.Println("Deleted File: " + path)
return os.Remove(path)
}
func (f FileSvgStorage) List() ([]os.DirEntry, error) {
return os.ReadDir(f.basepath)
}
func (f FileSvgStorage) CreatePublic(data io.Reader, filetype string) (string, error) {
path := filepath.Join(f.basepath, f.publicSubPath)
if err := os.MkdirAll(path, 0755); err != nil {
@@ -164,8 +175,8 @@ func (f FileSvgStorage) GetFonts() ([]string, error) {
return fonts, nil
}
func (f FileSvgStorage) GetFontsDir() (string, error) {
return filepath.Join(f.basepath, f.fontssubpath), nil
func (f FileSvgStorage) GetFontsDir() string {
return filepath.Join(f.basepath, f.fontssubpath)
}
func getFontName(svgblob []byte) (string, error) {
pkg/svg/templates.go
+24 -2
View File
@@ -1,11 +1,33 @@
package svg
import "slices"
const KeyRegex string = `\{\{\s*(.*?)\s*\}\}`
type TemplateData struct {
Id string
Name string
Id string
Name string
Pages []TemplatePage
}
type TemplatePage struct {
TemplateId string
Page int
TemplateKeys []string
}
var Storage SvgStorage
func (d TemplateData) AllKeys() []string {
keys := make([]string, 0)
for _, page := range d.Pages {
for _, key := range page.TemplateKeys {
if !slices.Contains(keys, key) {
keys = append(keys, key)
}
}
}
return keys
}