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