commit 767718055ba4ea0eb727bb5f068f1331ce8759ce · edavis.dev/plcwatch

+51

cmd/plcwatch/comparisons.go

···

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       package main

     

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       import (

     

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       	"fmt"

     

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       	"reflect"

     

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       )

     

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       type CompareResults struct {

     

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       	Title       string

     

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       	Description string

     

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       }

     

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       func compareAlsoKnownAs(old, new []string) *CompareResults {

     

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       	if !reflect.DeepEqual(old, new) {

     

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       		return &CompareResults{

     

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       			"Alias updated",

     

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       			fmt.Sprintf("%+v -> %+v", old, new),

     

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       		}

     

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       	}

     

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       	return nil

     

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       }

     

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       func compareServices(old, new map[string]PlcService) *CompareResults {

     

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       	if !reflect.DeepEqual(old, new) {

     

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       		return &CompareResults{

     

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       			"Service updated",

     

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       			fmt.Sprintf("%+v -> %+v", old, new),

     

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       		}

     

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       	}

     

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       	return nil

     

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       }

     

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       func compareRotationKeys(old, new []string) *CompareResults {

     

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       	if !reflect.DeepEqual(old, new) {

     

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       		return &CompareResults{

     

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       			"Rotation key updated",

     

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       			fmt.Sprintf("%+v -> %+v", old, new),

     

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       		}

     

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       	}

     

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       	return nil

     

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       }

     

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       func compareVerificationMethods(old, new map[string]string) *CompareResults {

     

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       	if !reflect.DeepEqual(old, new) {

     

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       		return &CompareResults{

     

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       			"Verification method updated",

     

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       			fmt.Sprintf("%+v -> %+v", old, new),

     

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       		}

     

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       	}

     

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       	return nil

     

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       }

+105

cmd/plcwatch/main.go

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       package main

     

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       import (

     

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       	"encoding/json"

     

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       	"fmt"

     

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       	"io"

     

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       	"net/http"

     

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       	"time"

     

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       	"github.com/bluesky-social/indigo/atproto/syntax"

     

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       	"github.com/labstack/echo/v4"

     

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       )

     

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       const plcDirectoryHost = "https://plc.directory"

     

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       func rssTimeFormat(raw string) string {

     

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       	t, err := syntax.ParseDatetimeTime(raw)

     

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       	if err != nil {

     

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       		return time.Now().UTC().Format(time.RFC1123Z)

     

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       	}

     

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       	return t.Format(time.RFC1123Z)

     

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       }

     

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       func main() {

     

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       	e := echo.New()

     

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       	e.GET("/:did", func(c echo.Context) error {

     

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       		did := c.Param("did")

     

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       		url := fmt.Sprintf("%s/%s/log/audit", plcDirectoryHost, did)

     

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       		resp, err := http.Get(url)

     

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       		if err != nil {

     

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       			return fmt.Errorf("failed fetching did audit log: %w", err)

     

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       		}

     

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       		defer resp.Body.Close()

     

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       		respBytes, err := io.ReadAll(resp.Body)

     

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       		if err != nil {

     

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       			return fmt.Errorf("failed reading PLC bytes: %w", err)

     

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       		}

     

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       		var entries []PlcAudit

     

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       		err = json.Unmarshal(respBytes, &entries)

     

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       		if err != nil {

     

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       			return fmt.Errorf("failed unmarshalling bytes: %w", err)

     

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       		}

     

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       		rss := NewRss(did)

     

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       		var last *PlcAudit

     

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       		for _, entry := range entries {

     

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       			if last == nil {

     

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       				item := RssItem{

     

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       					Title:     "Identity created",

     

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       					Published: rssTimeFormat(entry.CreatedAt),

     

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       					Permalink: RssPermalink{entry.Cid, "false"},

     

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       				}

     

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       				rss.Add(item)

     

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       			} else {

     

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       				results := compareAlsoKnownAs(last.Operation.AlsoKnownAs, entry.Operation.AlsoKnownAs)

     

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       				if results != nil {

     

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       					rss.Add(RssItem{

     

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       						Title:       results.Title,

     

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       						Description: results.Description,

     

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       						Published:   rssTimeFormat(entry.CreatedAt),

     

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       						Permalink:   RssPermalink{entry.Cid + "#alsoKnownAs", "false"},

     

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       					})

     

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       				}

     

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       				results = compareServices(last.Operation.Services, entry.Operation.Services)

     

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       				if results != nil {

     

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       					rss.Add(RssItem{

     

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       						Title:       results.Title,

     

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       						Description: results.Description,

     

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       						Published:   rssTimeFormat(entry.CreatedAt),

     

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       						Permalink:   RssPermalink{entry.Cid + "#services", "false"},

     

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       					})

     

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       				}

     

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       				results = compareRotationKeys(last.Operation.RotationKeys, entry.Operation.RotationKeys)

     

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       				if results != nil {

     

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       					rss.Add(RssItem{

     

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       						Title:       results.Title,

     

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       						Description: results.Description,

     

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       						Published:   rssTimeFormat(entry.CreatedAt),

     

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       						Permalink:   RssPermalink{entry.Cid + "#rotationKeys", "false"},

     

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       					})

     

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       				}

     

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       				results = compareVerificationMethods(last.Operation.VerificationMethods, entry.Operation.VerificationMethods)

     

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       				if results != nil {

     

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       					rss.Add(RssItem{

     

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       						Title:       results.Title,

     

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       						Description: results.Description,

     

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       						Published:   rssTimeFormat(entry.CreatedAt),

     

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       						Permalink:   RssPermalink{entry.Cid + "#verificationMethods", "false"},

     

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       					})

     

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       				}

     

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       			}

     

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       			last = &entry

     

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       		}

     

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       		return c.XMLPretty(http.StatusOK, rss, "  ")

     

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       	})

     

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       	e.Logger.Fatal(e.Start(":1234"))

     

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       }

+24

cmd/plcwatch/plc.go

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       package main

     

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       type PlcAudit struct {

     

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       	Did       string       `json:"did"`

     

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       	Operation PlcOperation `json:"operation"`

     

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       	Cid       string       `json:"cid"`

     

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       	Nullified bool         `json:"nullified"`

     

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       	CreatedAt string       `json:"createdAt"`

     

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       }

     

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       type PlcOperation struct {

     

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       	Signature           string                `json:"sig"`

     

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       	Previous            *string               `json:"prev"`

     

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       	Type                string                `json:"type"`

     

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       	Services            map[string]PlcService `json:"services"`

     

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       	AlsoKnownAs         []string              `json:"alsoKnownAs"`

     

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       	RotationKeys        []string              `json:"rotationKeys"`

     

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       	VerificationMethods map[string]string     `json:"verificationMethods"`

     

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       }

     

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       type PlcService struct {

     

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       	Type     string `json:"type"`

     

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       	Endpoint string `json:"endpoint"`

     

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       +
       }

+40

cmd/plcwatch/rss.go

···

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       package main

     

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       import (

     

       4
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       	"fmt"

     

       5
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       +
       )

     

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       type Rss struct {

     

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       	XMLName string    `xml:"rss"`

     

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       	Version string    `xml:"version,attr"`

     

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       	Title   string    `xml:"channel>title"`

     

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       	Items   []RssItem `xml:"channel>item"`

     

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       }

     

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       +
       

     

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       type RssItem struct {

     

       15
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       +
       	Title       string       `xml:"title"`

     

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       	Description string       `xml:"description,omitempty"`

     

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       	Published   string       `xml:"pubDate"`

     

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       	Permalink   RssPermalink `xml:"guid"`

     

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       }

     

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       type CDATA struct {

     

       22
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       	Value string `xml:",cdata"`

     

       23
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       +
       }

     

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       +
       

     

       25
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       type RssPermalink struct {

     

       26
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       +
       	Value     string `xml:",chardata"`

     

       27
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       	Permanent string `xml:"isPermaLink,attr"`

     

       28
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       +
       }

     

       29
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       +
       

     

       30
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       +
       func NewRss(title string) *Rss {

     

       31
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       +
       	return &Rss{

     

       32
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       +
       		Version: "2.0",

     

       33
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       +
       		Title:   fmt.Sprintf("plcwatch: %s", title),

     

       34
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       +
       	}

     

       35
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       +
       }

     

       36
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       +
       

     

       37
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       +
       func (r *Rss) Add(item RssItem) {

     

       38
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       	// r.Items = append(r.Items, item)

     

       39
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       +
       	r.Items = append([]RssItem{item}, r.Items...)

     

       40
       40
       +
       }

+20

go.mod

···

       1
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       +
       module github.com/edavis/plcwatch

     

       2
       2
       +
       

     

       3
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       +
       go 1.23.6

     

       4
       4
       +
       

     

       5
       5
       +
       require (

     

       6
       6
       +
       	github.com/bluesky-social/indigo v0.0.0-20250324192039-40f397713b63

     

       7
       7
       +
       	github.com/labstack/echo/v4 v4.13.3

     

       8
       8
       +
       )

     

       9
       9
       +
       

     

       10
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       +
       require (

     

       11
       11
       +
       	github.com/labstack/gommon v0.4.2 // indirect

     

       12
       12
       +
       	github.com/mattn/go-colorable v0.1.13 // indirect

     

       13
       13
       +
       	github.com/mattn/go-isatty v0.0.20 // indirect

     

       14
       14
       +
       	github.com/valyala/bytebufferpool v1.0.0 // indirect

     

       15
       15
       +
       	github.com/valyala/fasttemplate v1.2.2 // indirect

     

       16
       16
       +
       	golang.org/x/crypto v0.31.0 // indirect

     

       17
       17
       +
       	golang.org/x/net v0.33.0 // indirect

     

       18
       18
       +
       	golang.org/x/sys v0.28.0 // indirect

     

       19
       19
       +
       	golang.org/x/text v0.21.0 // indirect

     

       20
       20
       +
       )

+33

go.sum

···

       1
       1
       +
       github.com/bluesky-social/indigo v0.0.0-20250324192039-40f397713b63 h1:0ohcaD0jwrEgMrPb87f3kL5n1OaIGuBqXdlE7iO3s6M=

     

       2
       2
       +
       github.com/bluesky-social/indigo v0.0.0-20250324192039-40f397713b63/go.mod h1:NVBwZvbBSa93kfyweAmKwOLYawdVHdwZ9s+GZtBBVLA=

     

       3
       3
       +
       github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=

     

       4
       4
       +
       github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=

     

       5
       5
       +
       github.com/labstack/echo/v4 v4.13.3 h1:pwhpCPrTl5qry5HRdM5FwdXnhXSLSY+WE+YQSeCaafY=

     

       6
       6
       +
       github.com/labstack/echo/v4 v4.13.3/go.mod h1:o90YNEeQWjDozo584l7AwhJMHN0bOC4tAfg+Xox9q5g=

     

       7
       7
       +
       github.com/labstack/gommon v0.4.2 h1:F8qTUNXgG1+6WQmqoUWnz8WiEU60mXVVw0P4ht1WRA0=

     

       8
       8
       +
       github.com/labstack/gommon v0.4.2/go.mod h1:QlUFxVM+SNXhDL/Z7YhocGIBYOiwB0mXm1+1bAPHPyU=

     

       9
       9
       +
       github.com/mattn/go-colorable v0.1.13 h1:fFA4WZxdEF4tXPZVKMLwD8oUnCTTo08duU7wxecdEvA=

     

       10
       10
       +
       github.com/mattn/go-colorable v0.1.13/go.mod h1:7S9/ev0klgBDR4GtXTXX8a3vIGJpMovkB8vQcUbaXHg=

     

       11
       11
       +
       github.com/mattn/go-isatty v0.0.16/go.mod h1:kYGgaQfpe5nmfYZH+SKPsOc2e4SrIfOl2e/yFXSvRLM=

     

       12
       12
       +
       github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=

     

       13
       13
       +
       github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=

     

       14
       14
       +
       github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=

     

       15
       15
       +
       github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=

     

       16
       16
       +
       github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA=

     

       17
       17
       +
       github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=

     

       18
       18
       +
       github.com/valyala/bytebufferpool v1.0.0 h1:GqA5TC/0021Y/b9FG4Oi9Mr3q7XYx6KllzawFIhcdPw=

     

       19
       19
       +
       github.com/valyala/bytebufferpool v1.0.0/go.mod h1:6bBcMArwyJ5K/AmCkWv1jt77kVWyCJ6HpOuEn7z0Csc=

     

       20
       20
       +
       github.com/valyala/fasttemplate v1.2.2 h1:lxLXG0uE3Qnshl9QyaK6XJxMXlQZELvChBOCmQD0Loo=

     

       21
       21
       +
       github.com/valyala/fasttemplate v1.2.2/go.mod h1:KHLXt3tVN2HBp8eijSv/kGJopbvo7S+qRAEEKiv+SiQ=

     

       22
       22
       +
       golang.org/x/crypto v0.31.0 h1:ihbySMvVjLAeSH1IbfcRTkD/iNscyz8rGzjF/E5hV6U=

     

       23
       23
       +
       golang.org/x/crypto v0.31.0/go.mod h1:kDsLvtWBEx7MV9tJOj9bnXsPbxwJQ6csT/x4KIN4Ssk=

     

       24
       24
       +
       golang.org/x/net v0.33.0 h1:74SYHlV8BIgHIFC/LrYkOGIwL19eTYXQ5wc6TBuO36I=

     

       25
       25
       +
       golang.org/x/net v0.33.0/go.mod h1:HXLR5J+9DxmrqMwG9qjGCxZ+zKXxBru04zlTvWlWuN4=

     

       26
       26
       +
       golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=

     

       27
       27
       +
       golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=

     

       28
       28
       +
       golang.org/x/sys v0.28.0 h1:Fksou7UEQUWlKvIdsqzJmUmCX3cZuD2+P3XyyzwMhlA=

     

       29
       29
       +
       golang.org/x/sys v0.28.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=

     

       30
       30
       +
       golang.org/x/text v0.21.0 h1:zyQAAkrwaneQ066sspRyJaG9VNi/YJ1NfzcGB3hZ/qo=

     

       31
       31
       +
       golang.org/x/text v0.21.0/go.mod h1:4IBbMaMmOPCJ8SecivzSH54+73PCFmPWxNTLm+vZkEQ=

     

       32
       32
       +
       gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=

     

       33
       33
       +
       gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=