76 lines
1.8 KiB
Go
76 lines
1.8 KiB
Go
package api
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import (
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"bytes"
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"errors"
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"html/template"
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"log"
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"net/http"
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"os"
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)
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func renderTemplate(context *RequestContext, templateName string, showBaseHtml bool) (bytes.Buffer, error) {
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templatePath := context.Args.TemplatePath
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basePath := templatePath + "/base_empty.html"
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if showBaseHtml {
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basePath = templatePath + "/base.html"
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}
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templateLocation := templatePath + "/" + templateName
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tmpl, err := template.New("").ParseFiles(templateLocation, basePath)
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if err != nil {
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return bytes.Buffer{}, err
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}
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dataPtr := context.TemplateData
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if dataPtr == nil {
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dataPtr = &map[string]interface{}{}
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}
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data := *dataPtr
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if data["User"] == nil {
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data["User"] = context.User
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}
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var buffer bytes.Buffer
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err = tmpl.ExecuteTemplate(&buffer, "base", data)
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if err != nil {
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return bytes.Buffer{}, err
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}
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return buffer, nil
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}
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func TemplateContinuation(path string, showBase bool) Continuation {
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return func(context *RequestContext, req *http.Request, resp http.ResponseWriter) ContinuationChain {
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return func(success Continuation, failure Continuation) ContinuationChain {
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html, err := renderTemplate(context, path, true)
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if errors.Is(err, os.ErrNotExist) {
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resp.WriteHeader(404)
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html, err = renderTemplate(context, "404.html", true)
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if err != nil {
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log.Println("error rendering 404 template", err)
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resp.WriteHeader(500)
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return failure(context, req, resp)
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}
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resp.Header().Set("Content-Type", "text/html")
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resp.Write(html.Bytes())
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return failure(context, req, resp)
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}
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if err != nil {
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log.Println("error rendering template", err)
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resp.WriteHeader(500)
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resp.Write([]byte("error rendering template"))
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return failure(context, req, resp)
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}
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resp.WriteHeader(200)
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resp.Header().Set("Content-Type", "text/html")
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resp.Write(html.Bytes())
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return success(context, req, resp)
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}
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}
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}
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