121 lines
3.7 KiB
Go
121 lines
3.7 KiB
Go
package mattermost
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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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"strings"
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"github.com/nicholas-fedor/shoutrrr/pkg/format"
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"github.com/nicholas-fedor/shoutrrr/pkg/services/standard"
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"github.com/nicholas-fedor/shoutrrr/pkg/types"
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)
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// Scheme is the identifying part of this service's configuration URL.
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const Scheme = "mattermost"
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// Static errors for configuration validation.
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var (
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ErrNotEnoughArguments = errors.New(
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"the apiURL does not include enough arguments, either provide 1 or 3 arguments (they may be empty)",
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)
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)
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// ErrorMessage represents error events within the Mattermost service.
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type ErrorMessage string
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// Config holds all configuration information for the Mattermost service.
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type Config struct {
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standard.EnumlessConfig
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UserName string `desc:"Override webhook user" optional:"" url:"user"`
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Icon string `desc:"Use emoji or URL as icon (based on presence of http(s):// prefix)" optional:"" default:"" key:"icon,icon_emoji,icon_url"`
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Title string `desc:"Notification title, optionally set by the sender (not used)" default:"" key:"title"`
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Channel string `desc:"Override webhook channel" optional:"" url:"path2"`
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Host string `desc:"Mattermost server host" url:"host,port"`
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Token string `desc:"Webhook token" url:"path1"`
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DisableTLS bool ` default:"No" key:"disabletls"`
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}
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// CreateConfigFromURL creates a new Config instance from a URL representation.
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func CreateConfigFromURL(url *url.URL) (*Config, error) {
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config := &Config{}
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if err := config.SetURL(url); err != nil {
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return nil, err
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}
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return config, nil
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}
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// GetURL returns a URL representation of the Config's current field values.
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func (c *Config) GetURL() *url.URL {
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resolver := format.NewPropKeyResolver(c)
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return c.getURL(&resolver) // Pass pointer to resolver
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}
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// SetURL updates the Config from a URL representation of its field values.
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func (c *Config) SetURL(url *url.URL) error {
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resolver := format.NewPropKeyResolver(c)
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return c.setURL(&resolver, url) // Pass pointer to resolver
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}
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// getURL constructs a URL from the Config's fields using the provided resolver.
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func (c *Config) getURL(resolver types.ConfigQueryResolver) *url.URL {
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paths := []string{"", c.Token, c.Channel}
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if c.Channel == "" {
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paths = paths[:2]
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}
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var user *url.Userinfo
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if c.UserName != "" {
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user = url.User(c.UserName)
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}
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return &url.URL{
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User: user,
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Host: c.Host,
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Path: strings.Join(paths, "/"),
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Scheme: Scheme,
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ForceQuery: false,
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RawQuery: format.BuildQuery(resolver),
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}
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}
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// setURL updates the Config from a URL using the provided resolver.
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func (c *Config) setURL(resolver types.ConfigQueryResolver, url *url.URL) error {
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c.Host = url.Host
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c.UserName = url.User.Username()
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if err := c.parsePath(url); err != nil {
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return err
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}
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for key, vals := range url.Query() {
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if err := resolver.Set(key, vals[0]); err != nil {
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return fmt.Errorf("setting query parameter %q to %q: %w", key, vals[0], err)
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}
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}
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return nil
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}
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// parsePath extracts Token and Channel from the URL path and validates arguments.
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func (c *Config) parsePath(url *url.URL) error {
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path := strings.Split(strings.Trim(url.Path, "/"), "/")
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isDummy := url.String() == "mattermost://dummy@dummy.com"
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if !isDummy && (len(path) < 1 || path[0] == "") {
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return ErrNotEnoughArguments
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}
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if len(path) > 0 && path[0] != "" {
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c.Token = path[0]
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}
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if len(path) > 1 && path[1] != "" {
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c.Channel = path[1]
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}
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return nil
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}
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