cb58c1c83f
Added the Back to Site link to Nox's Control Panel. Added the panel_group_menu template and used it to de-dupe the group menu HTML. Fixed a potential race condition with dismiss alert. Fixed a strange bug where new alerts wouldn't appear. Fixed a race condition where client templates sometimes wouldn't load. Dramatically cut down on the number of DOM rebuilds for the alert list. Added some missing error handling for ajax page block loads. Fixed a bug where the dimiss alert endpoint wasn't sending a success payload. Made the register_might_be_machine phrase more descriptive. Added the panel_menu_aria phrase.
358 lines
11 KiB
Go
358 lines
11 KiB
Go
package common
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import (
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"bytes"
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"compress/gzip"
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"crypto/sha256"
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"encoding/hex"
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"errors"
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"fmt"
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"io/ioutil"
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"mime"
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"net/http"
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"os"
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"path/filepath"
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"strconv"
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"strings"
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"sync"
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"github.com/Azareal/Gosora/tmpl_client"
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)
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type SFileList map[string]SFile
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var StaticFiles SFileList = make(map[string]SFile)
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var staticFileMutex sync.RWMutex
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type SFile struct {
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Data []byte
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GzipData []byte
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Sha256 []byte
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Pos int64
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Length int64
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GzipLength int64
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Mimetype string
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Info os.FileInfo
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FormattedModTime string
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}
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type CSSData struct {
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Phrases map[string]string
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}
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func (list SFileList) JSTmplInit() error {
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DebugLog("Initialising the client side templates")
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return filepath.Walk("./tmpl_client", func(path string, f os.FileInfo, err error) error {
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if f.IsDir() || strings.HasSuffix(path, "template_list.go") || strings.HasSuffix(path, "stub.go") {
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return nil
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}
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path = strings.Replace(path, "\\", "/", -1)
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DebugLog("Processing client template " + path)
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data, err := ioutil.ReadFile(path)
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if err != nil {
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return err
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}
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path = strings.TrimPrefix(path, "tmpl_client/")
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tmplName := strings.TrimSuffix(path, ".go")
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shortName := strings.TrimPrefix(tmplName, "template_")
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var replace = func(data []byte, replaceThis string, withThis string) []byte {
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return bytes.Replace(data, []byte(replaceThis), []byte(withThis), -1)
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}
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startIndex, hasFunc := skipAllUntilCharsExist(data, 0, []byte("func init() {"))
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if !hasFunc {
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return errors.New("no init function found")
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}
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data = data[startIndex-len([]byte("func init() {")):]
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data = replace(data, "func ", "function ")
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data = replace(data, "function init() {", "if(tmplInits===undefined) var tmplInits = {};\ntmplInits[\""+tmplName+"\"] = ")
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data = replace(data, " error {\n", " {\nlet out = \"\"\n")
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funcIndex, hasFunc := skipAllUntilCharsExist(data, 0, []byte("function Template_"))
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if !hasFunc {
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return errors.New("no template function found")
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}
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spaceIndex, hasSpace := skipUntilIfExists(data, funcIndex, ' ')
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if !hasSpace {
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return errors.New("no spaces found after the template function name")
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}
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endBrace, hasBrace := skipUntilIfExists(data, spaceIndex, ')')
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if !hasBrace {
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return errors.New("no right brace found after the template function name")
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}
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fmt.Println("spaceIndex: ", spaceIndex)
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fmt.Println("endBrace: ", endBrace)
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fmt.Println("string(data[spaceIndex:endBrace]): ", string(data[spaceIndex:endBrace]))
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preLen := len(data)
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data = replace(data, string(data[spaceIndex:endBrace]), "")
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data = replace(data, "))\n", " \n")
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endBrace -= preLen - len(data) // Offset it as we've deleted portions
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fmt.Println("new endBrace: ", endBrace)
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fmt.Println("data: ", string(data))
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/*var showPos = func(data []byte, index int) (out string) {
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out = "["
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for j, char := range data {
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if index == j {
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out += "[" + string(char) + "] "
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} else {
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out += string(char) + " "
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}
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}
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return out + "]"
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}*/
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data = replace(data, `)
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if !ok {
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return errors.New("invalid page struct value")
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}`, "*/tmpl_"+shortName+"_vars = tmpl_"+shortName+"_i")
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// ? Can we just use a regex? I'm thinking of going more efficient, or just outright rolling wasm, this is a temp hack in a place where performance doesn't particularly matter
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var each = func(phrase string, handle func(index int)) {
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//fmt.Println("find each '" + phrase + "'")
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var index = endBrace
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if index < 0 {
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panic("index under zero: " + strconv.Itoa(index))
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}
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var foundIt bool
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for {
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//fmt.Println("in index: ", index)
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//fmt.Println("pos: ", showPos(data, index))
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index, foundIt = skipAllUntilCharsExist(data, index, []byte(phrase))
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if !foundIt {
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break
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}
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handle(index)
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}
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}
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each("strconv.Itoa(", func(index int) {
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braceAt, hasEndBrace := skipUntilIfExistsOrLine(data, index, ')')
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if hasEndBrace {
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data[braceAt] = ' ' // Blank it
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}
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})
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each("[]byte(", func(index int) {
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braceAt, hasEndBrace := skipUntilIfExistsOrLine(data, index, ')')
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if hasEndBrace {
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data[braceAt] = ' ' // Blank it
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}
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})
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each("StringToBytes(", func(index int) {
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braceAt, hasEndBrace := skipUntilIfExistsOrLine(data, index, ')')
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if hasEndBrace {
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data[braceAt] = ' ' // Blank it
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}
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})
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each("w.Write(", func(index int) {
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braceAt, hasEndBrace := skipUntilIfExistsOrLine(data, index, ')')
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if hasEndBrace {
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data[braceAt] = ' ' // Blank it
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}
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})
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each("RelativeTime(", func(index int) {
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braceAt, _ := skipUntilIfExistsOrLine(data, index, 10)
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if data[braceAt-1] == ' ' {
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data[braceAt-1] = ' ' // Blank it
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}
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})
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each("if ", func(index int) {
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//fmt.Println("if index: ", index)
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braceAt, hasBrace := skipUntilIfExistsOrLine(data, index, '{')
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if hasBrace {
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if data[braceAt-1] != ' ' {
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panic("couldn't find space before brace, found ' " + string(data[braceAt-1]) + "' instead")
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}
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data[braceAt-1] = ')' // Drop a brace here to satisfy JS
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}
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})
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each("for _, item := range ", func(index int) {
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//fmt.Println("for index: ", index)
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braceAt, hasBrace := skipUntilIfExists(data, index, '{')
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if hasBrace {
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if data[braceAt-1] != ' ' {
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panic("couldn't find space before brace, found ' " + string(data[braceAt-1]) + "' instead")
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}
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data[braceAt-1] = ')' // Drop a brace here to satisfy JS
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}
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})
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data = replace(data, "for _, item := range ", "for(item of ")
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data = replace(data, "w.Write([]byte(", "out += ")
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data = replace(data, "w.Write(StringToBytes(", "out += ")
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data = replace(data, "w.Write(", "out += ")
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data = replace(data, "strconv.Itoa(", "")
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data = replace(data, "strconv.FormatInt(", "")
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data = replace(data, "common.", "")
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data = replace(data, "phrases.", "")
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data = replace(data, ", 10;", "")
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data = replace(data, shortName+"_tmpl_phrase_id = RegisterTmplPhraseNames([]string{", "[")
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data = replace(data, "var plist = GetTmplPhrasesBytes("+shortName+"_tmpl_phrase_id)", "let plist = tmplPhrases[\""+tmplName+"\"];")
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data = replace(data, "var cached_var_", "let cached_var_")
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data = replace(data, `tmpl_`+shortName+`_vars, ok := tmpl_`+shortName+`_i.`, `/*`)
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data = replace(data, "[]byte(", "")
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data = replace(data, "StringToBytes(", "")
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data = replace(data, "RelativeTime(tmpl_"+shortName+"_vars.", "tmpl_"+shortName+"_vars.Relative")
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// TODO: Format dates properly on the client side
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data = replace(data, ".Format(\"2006-01-02 15:04:05\"", "")
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data = replace(data, ", 10", "")
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data = replace(data, "if ", "if(")
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data = replace(data, "return nil", "return out")
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data = replace(data, " )", ")")
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data = replace(data, " \n", "\n")
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data = replace(data, "\n", ";\n")
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data = replace(data, "{;", "{")
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data = replace(data, "};", "}")
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data = replace(data, "[;", "[")
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data = replace(data, ";;", ";")
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data = replace(data, ",;", ",")
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data = replace(data, "=;", "=")
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data = replace(data, `,
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});
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}`, "\n\t];")
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data = replace(data, `=
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}`, "= []")
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fragset := tmpl.GetFrag(shortName)
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if fragset != nil {
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var sfrags = []byte("let " + shortName + "_frags = [];\n")
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for _, frags := range fragset {
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sfrags = append(sfrags, []byte(shortName+"_frags.push(`"+string(frags)+"`);\n")...)
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}
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data = append(sfrags, data...)
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}
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data = replace(data, "\n;", "\n")
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for name, _ := range Themes {
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if strings.HasSuffix(shortName, "_"+name) {
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data = append(data, "\nvar Template_"+strings.TrimSuffix(shortName, "_"+name)+" = Template_"+shortName+";"...)
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break
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}
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}
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path = tmplName + ".js"
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DebugLog("js path: ", path)
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var ext = filepath.Ext("/tmpl_client/" + path)
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gzipData, err := compressBytesGzip(data)
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if err != nil {
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return err
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}
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// Get a checksum for CSPs and cache busting
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hasher := sha256.New()
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hasher.Write(data)
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checksum := []byte(hex.EncodeToString(hasher.Sum(nil)))
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list.Set("/static/"+path, SFile{data, gzipData, checksum, 0, int64(len(data)), int64(len(gzipData)), mime.TypeByExtension(ext), f, f.ModTime().UTC().Format(http.TimeFormat)})
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DebugLogf("Added the '%s' static file.", path)
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return nil
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})
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}
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func (list SFileList) Init() error {
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return filepath.Walk("./public", func(path string, f os.FileInfo, err error) error {
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if f.IsDir() {
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return nil
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}
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path = strings.Replace(path, "\\", "/", -1)
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data, err := ioutil.ReadFile(path)
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if err != nil {
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return err
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}
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path = strings.TrimPrefix(path, "public/")
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var ext = filepath.Ext("/public/" + path)
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mimetype := mime.TypeByExtension(ext)
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// Get a checksum for CSPs and cache busting
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hasher := sha256.New()
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hasher.Write(data)
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checksum := []byte(hex.EncodeToString(hasher.Sum(nil)))
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// Avoid double-compressing images
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var gzipData []byte
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if mimetype != "image/jpeg" && mimetype != "image/png" && mimetype != "image/gif" {
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gzipData, err = compressBytesGzip(data)
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if err != nil {
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return err
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}
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// Don't use Gzip if we get meagre gains from it as it takes longer to process the responses
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if len(gzipData) >= (len(data) + 100) {
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gzipData = nil
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} else {
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diff := len(data) - len(gzipData)
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if diff <= len(data)/100 {
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gzipData = nil
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}
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}
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}
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list.Set("/static/"+path, SFile{data, gzipData, checksum, 0, int64(len(data)), int64(len(gzipData)), mimetype, f, f.ModTime().UTC().Format(http.TimeFormat)})
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DebugLogf("Added the '%s' static file.", path)
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return nil
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})
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}
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func (list SFileList) Add(path string, prefix string) error {
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data, err := ioutil.ReadFile(path)
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if err != nil {
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return err
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}
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fi, err := os.Open(path)
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if err != nil {
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return err
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}
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f, err := fi.Stat()
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if err != nil {
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return err
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}
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var ext = filepath.Ext(path)
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path = strings.TrimPrefix(path, prefix)
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gzipData, err := compressBytesGzip(data)
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if err != nil {
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return err
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}
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// Get a checksum for CSPs and cache busting
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hasher := sha256.New()
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hasher.Write(data)
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checksum := []byte(hex.EncodeToString(hasher.Sum(nil)))
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list.Set("/static"+path, SFile{data, gzipData, checksum, 0, int64(len(data)), int64(len(gzipData)), mime.TypeByExtension(ext), f, f.ModTime().UTC().Format(http.TimeFormat)})
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DebugLogf("Added the '%s' static file", path)
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return nil
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}
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func (list SFileList) Get(name string) (file SFile, exists bool) {
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staticFileMutex.RLock()
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defer staticFileMutex.RUnlock()
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file, exists = list[name]
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return file, exists
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}
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func (list SFileList) Set(name string, data SFile) {
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staticFileMutex.Lock()
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defer staticFileMutex.Unlock()
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list[name] = data
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}
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func compressBytesGzip(in []byte) ([]byte, error) {
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var buff bytes.Buffer
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gz, err := gzip.NewWriterLevel(&buff, gzip.BestCompression)
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if err != nil {
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return nil, err
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}
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_, err = gz.Write(in)
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if err != nil {
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return nil, err
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}
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err = gz.Close()
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if err != nil {
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return nil, err
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}
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return buff.Bytes(), nil
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}
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