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78 lines
1.7 KiB
78 lines
1.7 KiB
// Package deadlinks implements a liveness checker for hyperlinks in HTML and
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// gemtext documents.
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package deadlinks
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import (
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"errors"
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"fmt"
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"net/url"
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"time"
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)
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// URL is a standard universal resource identifier, normalized particularly for
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// this package.
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type URL string
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// ParseURL parses and returns a URL based on the given string, or an error.
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func ParseURL(urlStr string) (URL, error) {
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u, err := url.Parse(urlStr)
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if err != nil {
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return "", err
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}
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return URL(u.String()), nil
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}
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func parseURLs(urlStrs []string) ([]URL, error) {
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var (
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res = make([]URL, 0, len(urlStrs))
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errs []error
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)
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for _, urlStr := range urlStrs {
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u, err := ParseURL(urlStr)
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if err == nil {
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res = append(res, u)
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} else {
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errs = append(errs, err)
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}
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}
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return res, errors.Join(errs...)
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}
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// ResourceStatus describes what state a particular Resource is in.
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type ResourceStatus int
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// Enumeration of ResourceStatus values.
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const (
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ResourceStatusUnknown ResourceStatus = iota
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ResourceStatusOK
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ResourceStatusError
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)
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func (ds ResourceStatus) String() string {
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switch ds {
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case ResourceStatusUnknown:
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return "UNKNOWN"
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case ResourceStatusOK:
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return "OK"
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case ResourceStatusError:
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return "ERROR"
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default:
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panic(fmt.Sprintf("unknown ResourceStatus: %#v", ds))
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}
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}
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// Resource describes the current state of a resource, with the resource being
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// uniquely identified by a URL.
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type Resource struct {
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URL URL
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Status ResourceStatus
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Pinned bool
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LastChecked time.Time
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// only set if Status == ResourceStatusError
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ErrorString string
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// Indicate the URLs of resources which link to/are linked from this
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// resource.
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IncomingLinkURLs, OutgoingLinkURLs []URL
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}
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