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Better error handling when executing templates

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This commit is contained in:
Matthew Holt 2015-04-21 21:36:30 -06:00
parent 0cbaed2443
commit bdd145b0de
2 changed files with 11 additions and 5 deletions
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10
middleware/browse/browse.go
View File

@ -3,6 +3,7 @@
package browse
import (
"bytes"
"fmt"
"html/template"
"io/ioutil"
@ -122,8 +123,6 @@ func (b Browse) ServeHTTP(w http.ResponseWriter, r *http.Request) (int, error) {
}
defer file.Close()
w.Header().Set("Content-Type", "text/html; charset=utf-8")
files, err := file.Readdir(-1)
if err != nil {
return http.StatusForbidden, err
@ -182,11 +181,14 @@ func (b Browse) ServeHTTP(w http.ResponseWriter, r *http.Request) (int, error) {
Items: fileinfos,
}
// TODO: Don't write to w until we know there wasn't an error
err = bc.Template.Execute(w, listing)
// TODO: Use pooled buffers to reduce allocations
var buf bytes.Buffer
err = bc.Template.Execute(&buf, listing)
if err != nil {
return http.StatusInternalServerError, err
}
w.Header().Set("Content-Type", "text/html; charset=utf-8")
buf.WriteTo(w)
return http.StatusOK, nil
}

6
middleware/templates/templates.go
View File

@ -1,6 +1,7 @@
package templates
import (
"bytes"
"net/http"
"path"
"text/template"
@ -47,10 +48,13 @@ func (t Templates) ServeHTTP(w http.ResponseWriter, r *http.Request) (int, error
}
// Execute it
err = tpl.Execute(w, ctx)
// TODO: Use pooled buffers to reduce allocations
var buf bytes.Buffer
err = bc.Template.Execute(&buf, ctx)
if err != nil {
return http.StatusInternalServerError, err
}
buf.WriteTo(w)
return http.StatusOK, nil
}