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Seafile: Fix download/upload error when FILE_SERVER_ROOT is relative 

A seafile server can be configured to use a relative URL as
FILE_SERVER_ROOT in order to support more than one hostname/ip. (see
https://github.com/haiwen/seahub/issues/3398#issuecomment-506920360 )

The previous backend implementation always expected an absolute
download/upload URL, resulting in an "unsupported protocol scheme"
error.

With this commit it supports both absolute and relative.
This commit is contained in:
DanielEgbers 2024-02-05 12:48:51 +01:00 committed by GitHub
parent 91b54aafcc
commit a0dff2dd9c
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
1 changed files with 20 additions and 5 deletions
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25
backend/seafile/webapi.go
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@ -577,7 +577,7 @@ func (f *Fs) getDownloadLink(ctx context.Context, libraryID, filePath string) (s
return result, nil
}
func (f *Fs) download(ctx context.Context, url string, size int64, options ...fs.OpenOption) (io.ReadCloser, error) {
func (f *Fs) download(ctx context.Context, downloadLink string, size int64, options ...fs.OpenOption) (io.ReadCloser, error) {
// Check if we need to download partial content
var start, end int64 = 0, size
partialContent := false
@ -606,11 +606,18 @@ func (f *Fs) download(ctx context.Context, url string, size int64, options ...fs
// Build the http request
opts := rest.Opts{
Method: "GET",
RootURL: url,
Options: options,
}
parsedURL, err := url.Parse(downloadLink)
if err != nil {
return nil, fmt.Errorf("failed to parse download url: %w", err)
}
if parsedURL.IsAbs() {
opts.RootURL = downloadLink
} else {
opts.Path = downloadLink
}
var resp *http.Response
var err error
err = f.pacer.Call(func() (bool, error) {
resp, err = f.srv.Call(ctx, &opts)
return f.shouldRetry(ctx, resp, err)
@ -618,7 +625,7 @@ func (f *Fs) download(ctx context.Context, url string, size int64, options ...fs
if err != nil {
if resp != nil {
if resp.StatusCode == 404 {
return nil, fmt.Errorf("file not found '%s'", url)
return nil, fmt.Errorf("file not found '%s'", downloadLink)
}
}
return nil, err
@ -688,11 +695,19 @@ func (f *Fs) upload(ctx context.Context, in io.Reader, uploadLink, filePath stri
opts := rest.Opts{
Method: "POST",
RootURL: uploadLink,
Body: formReader,
ContentType: contentType,
Parameters: url.Values{"ret-json": {"1"}}, // It needs to be on the url, not in the body parameters
}
parsedURL, err := url.Parse(uploadLink)
if err != nil {
return nil, fmt.Errorf("failed to parse upload url: %w", err)
}
if parsedURL.IsAbs() {
opts.RootURL = uploadLink
} else {
opts.Path = uploadLink
}
result := make([]api.FileDetail, 1)
var resp *http.Response
// If an error occurs during the call, do not attempt to retry: The upload link is single use only