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mdview.go
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mdview.go
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package mdview
import (
"errors"
"fmt"
"io/fs"
"regexp"
"strings"
"text/template"
"time"
"github.com/l4go/rpath"
"github.com/1f408/cats_eeds/md2html"
"github.com/1f408/cats_eeds/upath"
"github.com/1f408/cats_eeds/view/internal/dirview"
"github.com/1f408/cats_eeds/view/internal/htpath"
"github.com/1f408/cats_eeds/view/internal/mtable"
)
func new_err(format string, v ...interface{}) error {
return errors.New(fmt.Sprintf(format, v...))
}
type MdView struct {
SystemFS fs.FS
SocketType string
SocketPath string
CacheControl string
UrlTopPath string
UrlLibPath string
DocumentRoot upath.UPath
IndexName string
OriginTmpl *template.Template
HtmlTmpl *template.Template
MainTmplName string
SvgIconPath upath.UPath
Md2Html *md2html.Md2Html
MimeExtTable *mtable.MimeExtTable
MarkdownExt []string
MarkdownConfig *md2html.MdConfig
ThemeStyle string
LocationNavi string
DirectoryViewMode string
DirectoryViewRoots []upath.UPath
DirectoryViewHidden []*regexp.Regexp
DirectoryViewPathHidden []*regexp.Regexp
TimeStampFormat string
DirViewStamp *dirview.DirViewStamp
TextViewMode string
ConfigModTime time.Time
TemplateTag []byte
}
func newMdViewDefault() *MdView {
mdv := &MdView{}
mdv.UrlTopPath = "/"
mdv.UrlLibPath = "/"
mdv.IndexName = "README.md"
mdv.MainTmplName = "mdview.tmpl"
mdv.MarkdownExt = []string{"md", "markdown"}
mdv.ThemeStyle = "radio"
mdv.LocationNavi = "dirs"
mdv.DirectoryViewMode = "autoindex"
mdv.TimeStampFormat = "%F %T"
mdv.TextViewMode = "html"
return mdv
}
func NewMdView(cfg *MdViewConfig) (*MdView, error) {
mdv := newMdViewDefault()
mdv.SystemFS = cfg.SystemFS
mdv.ConfigModTime = cfg.ModTime
mdv.SocketType = cfg.SocketType
mdv.SocketPath = cfg.SocketPath
if mdv.SocketType != "tcp" && mdv.SocketType != "unix" {
return nil, new_err("Bad socket type: %s", mdv.SocketType)
}
mdv.CacheControl = cfg.CacheControl
if cfg.UrlTopPath != "" {
mdv.UrlTopPath = rpath.SetDir("/" + cfg.UrlTopPath)
}
if cfg.UrlLibPath != "" {
mdv.UrlLibPath = rpath.SetDir("/" + cfg.UrlLibPath)
}
if !cfg.DocumentRoot.IsZero() {
mdv.DocumentRoot = cfg.DocumentRoot
}
if mdv.DocumentRoot.IsZero() {
return nil, new_err("Must document root")
}
if fi, err := mdv.DocumentRoot.Stat(mdv.SystemFS); err != nil || !fi.IsDir() {
return nil, new_err("Not found root dirctory: %s", mdv.DocumentRoot.String())
}
if cfg.IndexName != "" {
mdv.IndexName = cfg.IndexName
}
if strings.IndexRune(mdv.IndexName, '/') >= 0 {
return nil, new_err("Bad index name")
}
if !cfg.IconPath.IsZero() {
mdv.SvgIconPath = cfg.IconPath
}
if !mdv.SvgIconPath.IsZero() {
if fi, err := mdv.SvgIconPath.Stat(mdv.SystemFS); err != nil || !fi.IsDir() {
return nil, new_err("Not found ICON SVG dirctory: %s", mdv.SvgIconPath.String())
}
}
mdv.DirectoryViewRoots = []upath.UPath{mdv.DocumentRoot}
if cfg.DirectoryViewRoots != nil {
mdv.DirectoryViewRoots = cfg.DirectoryViewRoots
}
if cfg.DirectoryViewHidden != nil {
mdv.DirectoryViewHidden = make(
[]*regexp.Regexp, len(cfg.DirectoryViewHidden))
for i, ign_str := range cfg.DirectoryViewHidden {
re, err := regexp.Compile(ign_str)
if err != nil {
return nil, new_err("Bad hidden pattern: %s", ign_str)
}
mdv.DirectoryViewHidden[i] = re
}
}
if cfg.DirectoryViewPathHidden != nil {
mdv.DirectoryViewPathHidden = make(
[]*regexp.Regexp, len(cfg.DirectoryViewPathHidden))
for i, ign_str := range cfg.DirectoryViewPathHidden {
re, err := regexp.Compile(ign_str)
if err != nil {
return nil, new_err("Bad path hidden pattern: %s", ign_str)
}
mdv.DirectoryViewPathHidden[i] = re
}
}
if cfg.DirectoryViewMode != "" {
mdv.DirectoryViewMode = cfg.DirectoryViewMode
}
switch mdv.DirectoryViewMode {
case "none":
case "autoindex":
case "close":
case "auto":
case "open":
default:
return nil, new_err("Bad directory view mode: %s", mdv.DirectoryViewMode)
}
if cfg.TimeStampFormat != "" {
mdv.TimeStampFormat = cfg.TimeStampFormat
}
var err error
mdv.DirViewStamp, err = dirview.NewDirViewStamp(
mdv.SystemFS,
mdv.DirectoryViewRoots, mdv.TimeStampFormat,
mdv.DirectoryViewHidden, mdv.DirectoryViewPathHidden)
if err != nil {
return nil, new_err("Bad timestamp format: %s", mdv.TimeStampFormat)
}
if cfg.TextViewMode != "" {
mdv.TextViewMode = cfg.TextViewMode
}
switch mdv.TextViewMode {
case "raw":
case "html":
default:
return nil, new_err("Bad text view mode: %s", mdv.TextViewMode)
}
mdv.OriginTmpl = template.New("")
tmpl_funcs := template.FuncMap{
"once": DummyTmplOnce,
"svg_icon": mdv.TmplSvgIcon,
"file_type": func(s string) string { return "" },
}
mdv.OriginTmpl = mdv.OriginTmpl.Funcs(tmpl_funcs)
mdv.OriginTmpl, err = mdv.OriginTmpl.ParseFS(mdv.SystemFS, upath.FSPaths(cfg.TmplPaths)...)
if err != nil {
return nil, new_err("Template parse error: %s", err)
}
if cfg.MainTmpl != "" {
mdv.MainTmplName = cfg.MainTmpl
}
if len(*cfg.MimeExtTable.Value) != 0 {
mdv.MimeExtTable = cfg.MimeExtTable.Value
}
for ext, mtype := range *mdv.MimeExtTable {
if e := htpath.SetExtMimeType(ext, mtype); e != nil {
return nil, new_err("Bad mime extension: %s", ext)
}
}
if cfg.MarkdownExt != nil {
mdv.MarkdownExt = cfg.MarkdownExt
}
for _, ext := range mdv.MarkdownExt {
if e := htpath.SetMarkdownExt(ext); e != nil {
return nil, new_err("Bad file extension: %s", ext)
}
}
mdv.MarkdownConfig = cfg.MarkdownConfig.Value
mdv.Md2Html = md2html.NewMd2Html(mdv.MarkdownConfig)
if cfg.ThemeStyle != "" {
mdv.ThemeStyle = cfg.ThemeStyle
}
switch mdv.ThemeStyle {
case "radio":
case "os":
default:
return nil, new_err("Bad ThemeStyle: %s", mdv.ThemeStyle)
}
if cfg.LocationNavi != "" {
mdv.LocationNavi = cfg.LocationNavi
}
switch mdv.LocationNavi {
case "none":
case "dirs":
default:
return nil, new_err("Bad location navi type: %s", mdv.LocationNavi)
}
sum, err := mdv.SumTemplate()
if err != nil {
return nil, new_err("Template execute error: %s", err)
}
mdv.TemplateTag = sum
return mdv, nil
}