55 lines
1.6 KiB
Go
55 lines
1.6 KiB
Go
// Copyright 2018 Frédéric Guillot. All rights reserved.
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// Use of this source code is governed by the Apache 2.0
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// license that can be found in the LICENSE file.
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package browser // import "miniflux.app/reader/browser"
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import (
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"miniflux.app/errors"
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"miniflux.app/http/client"
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)
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var (
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errRequestFailed = "Unable to open this link: %v"
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errServerFailure = "Unable to fetch this resource (Status Code = %d)"
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errEncoding = "Unable to normalize encoding: %q"
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errEmptyFeed = "This feed is empty"
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errResourceNotFound = "Resource not found (404), this feed doesn't exists anymore, check the feed URL"
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errNotAuthorized = "You are not authorized to access this resource (invalid username/password)"
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)
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// Exec executes a HTTP request and handles errors.
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func Exec(request *client.Client) (*client.Response, *errors.LocalizedError) {
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response, err := request.Get()
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if err != nil {
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if e, ok := err.(*errors.LocalizedError); ok {
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return nil, e
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}
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return nil, errors.NewLocalizedError(errRequestFailed, err)
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}
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if response.IsNotFound() {
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return nil, errors.NewLocalizedError(errResourceNotFound)
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}
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if response.IsNotAuthorized() {
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return nil, errors.NewLocalizedError(errNotAuthorized)
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}
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if response.HasServerFailure() {
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return nil, errors.NewLocalizedError(errServerFailure, response.StatusCode)
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}
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if response.StatusCode != 304 {
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// Content-Length = -1 when no Content-Length header is sent.
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if response.ContentLength == 0 {
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return nil, errors.NewLocalizedError(errEmptyFeed)
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}
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if err := response.EnsureUnicodeBody(); err != nil {
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return nil, errors.NewLocalizedError(errEncoding, err)
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}
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}
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return response, nil
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}
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