getting there. need to use a channel buffer to avoid fetching too many
hostname resolutions at once, i think
This commit is contained in:
parent
8b926e8409
commit
8a029686d8
@ -32,6 +32,11 @@ func (a *Archiver) Run() int {
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a.startup = &t
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a.locator = NewInstanceLocator()
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log.Info().Msg(fmt.Sprintf("in %#v.Run()", a))
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a.locator.Locate()
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go a.locator.Locate()
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for {
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time.Sleep(1 * time.Second)
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}
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return 0
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}
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200
instance.go
200
instance.go
@ -1,34 +1,51 @@
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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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"github.com/rs/zerolog/log"
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"net/http"
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"strings"
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"time"
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//"github.com/bitly/go-simplejson"
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)
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const NodeInfoSchemaVersionTwoName = "http://nodeinfo.diaspora.software/ns/schema/2.0"
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const NODE_TIMEOUT = time.Second * 30
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type ServerImplementation int
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const (
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ServerUnknown ServerImplementation = iota
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ServerMastodon
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ServerPleorama
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ServerPleroma
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)
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type Instance struct {
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hostName string
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impl ServerImplementation
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errorCount uint
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lastFetch *time.Time
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highestId int
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skip bool
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errorCount uint
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highestId int
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hostName string
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impl ServerImplementation
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lastFailure *time.Time
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lastSuccess *time.Time
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nodeInfoUrl string
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serverVersion string
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identified bool
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up bool
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shouldSkip bool
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}
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func NewInstance(hostname string) *Instance {
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i := new(Instance)
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i.hostName = hostname
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i.detectNodeType()
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foreverago := time.Now().Add((-1 * 86400 * 365 * 100) * time.Second)
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i.lastSuccess = &foreverago
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i.lastFailure = &foreverago
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i.identified = false
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i.up = false
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go func() {
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i.detectNodeType()
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}()
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return i
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}
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@ -36,33 +53,174 @@ func (i *Instance) detectNodeType() {
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if i.impl > ServerUnknown {
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return
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}
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i.fetchNodeInfo()
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}
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type NodeInfoWellKnownResponse struct {
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Links []struct {
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Rel string `json:"rel"`
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Href string `json:"href"`
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} `json:"links"`
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}
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type NodeInfoVersionTwoSchema struct {
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Version string `json:"version"`
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Software struct {
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Name string `json:"name"`
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Version string `json:"version"`
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} `json:"software"`
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Protocols []string `json:"protocols"`
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Usage struct {
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Users struct {
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Total int `json:"total"`
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ActiveMonth int `json:"activeMonth"`
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ActiveHalfyear int `json:"activeHalfyear"`
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} `json:"users"`
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LocalPosts int `json:"localPosts"`
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} `json:"usage"`
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OpenRegistrations bool `json:"openRegistrations"`
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}
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func (i *Instance) registerError() {
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i.errorCount = i.errorCount + 1
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t := time.Now()
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i.lastFailure = &t
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}
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func (i *Instance) registerSuccess() {
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t := time.Now()
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i.lastSuccess = &t
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}
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func (i *Instance) fetchNodeInfoURL() {
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url := fmt.Sprintf("https://%s/.well-known/nodeinfo", i.hostName)
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var c = &http.Client{
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Timeout: NODE_TIMEOUT,
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}
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log.Debug().
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Str("url", url).
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Str("hostname", i.hostName).
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Msg("fetching nodeinfo reference URL")
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resp, err := c.Get(url)
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if err != nil {
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log.Error().
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Str("hostname", i.hostName).
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Msg("unable to fetch nodeinfo, node is down?")
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i.registerError()
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} else {
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i.up = true // node is alive and responding to us
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nir := new(NodeInfoWellKnownResponse)
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err = json.NewDecoder(resp.Body).Decode(&nir)
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if err != nil {
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log.Error().
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Str("hostname", i.hostName).
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Msg("unable to parse nodeinfo")
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i.registerError()
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return
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}
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for _, item := range nir.Links {
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if item.Rel == NodeInfoSchemaVersionTwoName {
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log.Info().
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Str("hostname", i.hostName).
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Str("nodeinfourl", item.Href).
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Msg("success fetching url for nodeinfo")
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i.nodeInfoUrl = item.Href
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i.registerSuccess()
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return
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}
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}
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log.Error().
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Str("hostname", i.hostName).
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Msg("incomplete nodeinfo")
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i.registerError()
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return
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}
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}
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func (i *Instance) fetchNodeInfo() {
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url := fmt.Sprintf("https://%s/.well-known/nodeinfo")
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var c = &http.Client{
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Timeout: time.Second * 10,
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}
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response, err := c.Get(url)
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if err != nil {
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log.Debug().Msg("unable to fetch nodeinfo, node is down?")
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i.skip = true
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i.fetchNodeInfoURL()
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if i.nodeInfoUrl == "" {
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log.Error().
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Str("hostname", i.hostName).
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Msg("unable to fetch nodeinfo as nodeinfo URL cannot be determined")
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return
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}
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log.Debug().Msgf("%#v", response)
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var c = &http.Client{
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Timeout: NODE_TIMEOUT,
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}
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//FIXME make sure the nodeinfourl is on the same domain as the instance
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//hostname
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resp, err := c.Get(i.nodeInfoUrl)
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if err != nil {
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log.Error().
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Str("hostname", i.hostName).
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Msgf("unable to fetch nodeinfo data: %s", err)
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i.registerError()
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} else {
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ni := new(NodeInfoVersionTwoSchema)
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err = json.NewDecoder(resp.Body).Decode(&ni)
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if err != nil {
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log.Error().
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Str("hostname", i.hostName).
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Msgf("unable to parse nodeinfo: %s", err)
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i.registerError()
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return
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}
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log.Info().
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Str("serverVersion", ni.Software.Version).
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Str("software", ni.Software.Name).
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Str("hostName", i.hostName).
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Str("nodeInfoUrl", i.nodeInfoUrl).
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Msg("received nodeinfo from instance")
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i.serverVersion = ni.Software.Version
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ni.Software.Name = strings.ToLower(ni.Software.Name)
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if ni.Software.Name == "pleroma" {
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log.Info().
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Str("hostname", i.hostName).
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Str("software", ni.Software.Name).
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Msg("detected server software")
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i.registerSuccess()
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i.identified = true
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i.impl = ServerPleroma
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} else if ni.Software.Name == "mastodon" {
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log.Info().
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Str("hostname", i.hostName).
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Str("software", ni.Software.Name).
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Msg("detected server software")
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i.registerSuccess()
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i.identified = true
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i.impl = ServerMastodon
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} else {
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log.Error().
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Str("hostname", i.hostName).
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Str("software", ni.Software.Name).
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Msg("unknown implementation on server")
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i.registerError()
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}
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return
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}
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}
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func (i *Instance) fetchRecentToots() ([]byte, error) {
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if i.impl == ServerMastodon {
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return i.fetchRecentTootsJsonFromMastodon()
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} else if i.impl == ServerPleorama {
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return i.fetchRecentTootsJsonFromPleorama()
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} else if i.impl == ServerPleroma {
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return i.fetchRecentTootsJsonFromPleroma()
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} else {
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panic("nope")
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}
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}
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func (i *Instance) fetchRecentTootsJsonFromPleorama() ([]byte, error) {
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func (i *Instance) fetchRecentTootsJsonFromPleroma() ([]byte, error) {
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//url := fmt.Sprintf("https://%s/api/statuses/public_and_external_timeline.json?count=100", i.hostName)
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return nil, nil
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}
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175
locator.go
175
locator.go
@ -1,36 +1,189 @@
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package main
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import (
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"encoding/json"
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"github.com/rs/zerolog/log"
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"io/ioutil"
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"net/http"
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"sync"
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"time"
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)
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const mastodonIndexUrl = "https://instances.social/list.json?q%5Busers%5D=&q%5Bsearch%5D=&strict=false"
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var foreverago = time.Now().Add((-1 * 86400 * 365 * 100) * time.Second)
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// thank fuck for https://mholt.github.io/json-to-go/ otherwise
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// this would have been a giant pain in the dick
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type MastodonIndexResponse struct {
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Instances []struct {
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ID string `json:"_id"`
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AddedAt time.Time `json:"addedAt"`
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Name string `json:"name"`
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Downchecks int `json:"downchecks"`
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Upchecks int `json:"upchecks"`
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HTTPSRank interface{} `json:"https_rank"`
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HTTPSScore int `json:"https_score"`
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ObsRank string `json:"obs_rank"`
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ObsScore int `json:"obs_score"`
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Ipv6 bool `json:"ipv6"`
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Up bool `json:"up"`
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Users int `json:"users"`
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Statuses string `json:"statuses"`
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Connections int `json:"connections"`
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OpenRegistrations bool `json:"openRegistrations"`
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Uptime float64 `json:"uptime"`
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Version string `json:"version"`
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VersionScore int `json:"version_score"`
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UpdatedAt time.Time `json:"updatedAt"`
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CheckedAt time.Time `json:"checkedAt"`
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Dead bool `json:"dead"`
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ObsDate time.Time `json:"obs_date"`
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Second60 int `json:"second60"`
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Second int `json:"second"`
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ActiveUserCount interface{} `json:"active_user_count,omitempty"`
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FirstUserCreatedAt interface{} `json:"first_user_created_at,omitempty"`
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Thumbnail string `json:"thumbnail"`
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ApUpdatedAt time.Time `json:"apUpdatedAt"`
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Second5 int `json:"second5"`
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RawVersion string `json:"raw_version"`
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ActivityPrevw struct {
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Statuses int `json:"statuses"`
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Logins int `json:"logins"`
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Registrations int `json:"registrations"`
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} `json:"activity_prevw,omitempty"`
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Mastodon bool `json:"mastodon"`
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UptimeStr string `json:"uptime_str"`
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Score int `json:"score"`
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ScoreStr string `json:"score_str"`
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} `json:"instances"`
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}
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const pleromaIndexUrl = "https://distsn.org/cgi-bin/distsn-pleroma-instances-api.cgi"
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type PleromaIndexResponse []struct {
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Domain string `json:"domain"`
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Title string `json:"title"`
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Thumbnail string `json:"thumbnail"`
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Registration bool `json:"registration"`
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Chat bool `json:"chat"`
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Gopher bool `json:"gopher"`
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WhoToFollow bool `json:"who_to_follow"`
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MediaProxy bool `json:"media_proxy"`
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ScopeOptions bool `json:"scope_options"`
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AccountActivationRequired bool `json:"account_activation_required"`
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TextLimit int `json:"text_limit"`
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}
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type InstanceLocator struct {
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pleromaIndexLastRefresh *time.Time
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mastodonIndexLastRefresh *time.Time
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instances map[string]Instance
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instances map[string]*Instance
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sync.Mutex
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}
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func NewInstanceLocator() *InstanceLocator {
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i := new(InstanceLocator)
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i.instances = make(map[string]*Instance)
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i.pleromaIndexLastRefresh = &foreverago
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i.mastodonIndexLastRefresh = &foreverago
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return i
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}
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func (i *InstanceLocator) Locate() {
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//var hostnames []string
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var netClient = &http.Client{
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Timeout: time.Second * 10,
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func (i *InstanceLocator) addInstance(hostname string) {
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// only add it if we haven't seen the hostname before
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if i.instances[hostname] == nil {
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log.Debug().Str("hostname", hostname).Msgf("adding discovered instance")
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i.Lock()
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i.instances[hostname] = NewInstance(hostname)
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i.Unlock()
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}
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resp, _ := netClient.Get(mastodonIndexUrl)
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defer resp.Body.Close()
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body, _ := ioutil.ReadAll(resp.Body)
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log.Debug().Msgf("%#v", body)
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}
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func (i *InstanceLocator) Locate() {
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log.Debug().Str("lastmastodonupdate", i.mastodonIndexLastRefresh.Format(time.RFC3339)).Send()
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log.Debug().Str("lastpleromaupdate", i.pleromaIndexLastRefresh.Format(time.RFC3339)).Send()
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i.locateMastodon()
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i.locatePleroma()
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time.Sleep(30 * time.Second)
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i.instanceReport()
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}
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func (i *InstanceLocator) instanceReport() {
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var upInstances int = 0
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var identifiedInstances int = 0
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var totalInstances int = 0
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totalInstances = len(i.instances)
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for _, elem := range i.instances {
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if elem.identified == true {
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identifiedInstances = identifiedInstances + 1
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}
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}
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for _, elem := range i.instances {
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if elem.up == true {
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upInstances = upInstances + 1
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}
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}
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log.Info().
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Int("up", upInstances).
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Int("total", totalInstances).
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Int("identified", identifiedInstances).
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Msg("instance report")
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}
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func (i *InstanceLocator) locateMastodon() {
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var netClient = &http.Client{
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Timeout: time.Second * 20,
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}
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resp, err := netClient.Get(mastodonIndexUrl)
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defer resp.Body.Close()
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||||
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||||
if err != nil {
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log.Warn().Msgf("unable to fetch mastodon instance list: %s", err)
|
||||
} else {
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||||
// it worked
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mi := new(MastodonIndexResponse)
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err = json.NewDecoder(resp.Body).Decode(&mi)
|
||||
if err != nil {
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log.Warn().Msgf("unable to parse mastodon instance list: %s", err)
|
||||
} else {
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for _, instance := range mi.Instances {
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i.addInstance(instance.Name)
|
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}
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||||
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i.Lock()
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t := time.Now()
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||||
i.mastodonIndexLastRefresh = &t
|
||||
i.Unlock()
|
||||
}
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||||
}
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||||
}
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||||
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||||
func (i *InstanceLocator) locatePleroma() {
|
||||
var netClient = &http.Client{
|
||||
Timeout: time.Second * 20,
|
||||
}
|
||||
resp, err := netClient.Get(pleromaIndexUrl)
|
||||
if err != nil {
|
||||
log.Warn().Msgf("unable to fetch pleroma instance list: %s", err)
|
||||
} else {
|
||||
// fetch worked
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||||
pi := new(PleromaIndexResponse)
|
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err = json.NewDecoder(resp.Body).Decode(&pi)
|
||||
if err != nil {
|
||||
log.Warn().Msgf("unable to parse pleroma instance list: %s", err)
|
||||
} else {
|
||||
for _, instance := range *pi {
|
||||
i.addInstance(instance.Domain)
|
||||
}
|
||||
i.Lock()
|
||||
t := time.Now()
|
||||
i.pleromaIndexLastRefresh = &t
|
||||
i.Unlock()
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user