Add vendor (steam)

vendor/github.com/Philipp15b/go-steam/trade/actions.go

@@ -0,0 +1,84 @@
+package trade
+
+import (
+	"github.com/Philipp15b/go-steam/economy/inventory"
+	"github.com/Philipp15b/go-steam/trade/tradeapi"
+	"time"
+)
+
+type Slot uint
+
+func (t *Trade) action(status *tradeapi.Status, err error) error {
+	if err != nil {
+		return err
+	}
+	t.onStatus(status)
+	return nil
+}
+
+// Returns the next batch of events to process. These can be queued from calls to methods
+// like `AddItem` or, if there are no queued events, from a new HTTP request to Steam's API (blocking!).
+// If the latter is the case, this method may also sleep before the request
+// to conform to the polling interval of the official Steam client.
+func (t *Trade) Poll() ([]interface{}, error) {
+	if t.queuedEvents != nil {
+		return t.Events(), nil
+	}
+
+	if d := time.Since(t.lastPoll); d < pollTimeout {
+		time.Sleep(pollTimeout - d)
+	}
+	t.lastPoll = time.Now()
+
+	err := t.action(t.api.GetStatus())
+	if err != nil {
+		return nil, err
+	}
+
+	return t.Events(), nil
+}
+
+func (t *Trade) GetTheirInventory(contextId uint64, appId uint32) (*inventory.Inventory, error) {
+	return inventory.GetFullInventory(func() (*inventory.PartialInventory, error) {
+		return t.api.GetForeignInventory(contextId, appId, nil)
+	}, func(start uint) (*inventory.PartialInventory, error) {
+		return t.api.GetForeignInventory(contextId, appId, &start)
+	})
+}
+
+func (t *Trade) GetOwnInventory(contextId uint64, appId uint32) (*inventory.Inventory, error) {
+	return t.api.GetOwnInventory(contextId, appId)
+}
+
+func (t *Trade) GetMain() (*tradeapi.Main, error) {
+	return t.api.GetMain()
+}
+
+func (t *Trade) AddItem(slot Slot, item *Item) error {
+	return t.action(t.api.AddItem(uint(slot), item.AssetId, item.ContextId, item.AppId))
+}
+
+func (t *Trade) RemoveItem(slot Slot, item *Item) error {
+	return t.action(t.api.RemoveItem(uint(slot), item.AssetId, item.ContextId, item.AppId))
+}
+
+func (t *Trade) Chat(message string) error {
+	return t.action(t.api.Chat(message))
+}
+
+func (t *Trade) SetCurrency(amount uint, currency *Currency) error {
+	return t.action(t.api.SetCurrency(amount, currency.CurrencyId, currency.ContextId, currency.AppId))
+}
+
+func (t *Trade) SetReady(ready bool) error {
+	return t.action(t.api.SetReady(ready))
+}
+
+// This may only be called after a successful `SetReady(true)`.
+func (t *Trade) Confirm() error {
+	return t.action(t.api.Confirm())
+}
+
+func (t *Trade) Cancel() error {
+	return t.action(t.api.Cancel())
+}

vendor/github.com/Philipp15b/go-steam/trade/doc.go

@@ -0,0 +1,40 @@
+/*
+Allows automation of Steam Trading.
+
+Usage
+
+Like go-steam, this package is event-based. Call Poll() until the trade has ended, that is until the TradeEndedEvent is emitted.
+
+	// After receiving the steam.TradeSessionStartEvent
+	t := trade.New(sessionIdCookie, steamLoginCookie, steamLoginSecure, event.Other)
+	for {
+		eventList, err := t.Poll()
+		if err != nil {
+			// error handling here
+			continue
+		}
+		for _, event := range eventList {
+			switch e := event.(type) {
+				case *trade.ChatEvent:
+					// respond to any chat message
+					t.Chat("Trading is awesome!")
+				case *trade.TradeEndedEvent:
+					return
+				// other event handlers here
+			}
+		}
+	}
+
+You can either log into steamcommunity.com and use the values of the `sessionId` and `steamLogin` cookies,
+or use go-steam and after logging in with client.Web.LogOn() and receiving the WebLoggedOnEvent use the `SessionId`
+and `SteamLogin` fields of steam.Web for the respective cookies.
+
+It is important that there is no delay between the Poll() calls greater than the timeout of the Steam client
+(currently five seconds before the trade partner sees a warning) or the trade will be closed automatically by Steam.
+
+Notes
+
+All method calls to Steam APIs are blocking. This packages' and its subpackages' types are not thread-safe and no calls to any method of the same
+trade instance may be done concurrently except when otherwise noted.
+*/
+package trade

vendor/github.com/Philipp15b/go-steam/trade/trade.go

@@ -0,0 +1,122 @@
+package trade
+
+import (
+	"errors"
+	"time"
+
+	"github.com/Philipp15b/go-steam/steamid"
+	"github.com/Philipp15b/go-steam/trade/tradeapi"
+)
+
+const pollTimeout = time.Second
+
+type Trade struct {
+	ThemId steamid.SteamId
+
+	MeReady, ThemReady bool
+
+	lastPoll     time.Time
+	queuedEvents []interface{}
+	api          *tradeapi.Trade
+}
+
+func New(sessionId, steamLogin, steamLoginSecure string, other steamid.SteamId) *Trade {
+	return &Trade{
+		other,
+		false, false,
+		time.Unix(0, 0),
+		nil,
+		tradeapi.New(sessionId, steamLogin, steamLoginSecure, other),
+	}
+}
+
+func (t *Trade) Version() uint {
+	return t.api.Version
+}
+
+// Returns all queued events and removes them from the queue without performing a HTTP request, like Poll() would.
+func (t *Trade) Events() []interface{} {
+	qe := t.queuedEvents
+	t.queuedEvents = nil
+	return qe
+}
+
+func (t *Trade) onStatus(status *tradeapi.Status) error {
+	if !status.Success {
+		return errors.New("trade: returned status not successful! error message: " + status.Error)
+	}
+
+	if status.NewVersion {
+		t.api.Version = status.Version
+
+		t.MeReady = status.Me.Ready == true
+		t.ThemReady = status.Them.Ready == true
+	}
+
+	switch status.TradeStatus {
+	case tradeapi.TradeStatus_Complete:
+		t.addEvent(&TradeEndedEvent{TradeEndReason_Complete})
+	case tradeapi.TradeStatus_Cancelled:
+		t.addEvent(&TradeEndedEvent{TradeEndReason_Cancelled})
+	case tradeapi.TradeStatus_Timeout:
+		t.addEvent(&TradeEndedEvent{TradeEndReason_Timeout})
+	case tradeapi.TradeStatus_Failed:
+		t.addEvent(&TradeEndedEvent{TradeEndReason_Failed})
+	case tradeapi.TradeStatus_Open:
+		// nothing
+	default:
+		// ignore too
+	}
+
+	t.updateEvents(status.Events)
+	return nil
+}
+
+func (t *Trade) updateEvents(events tradeapi.EventList) {
+	if len(events) == 0 {
+		return
+	}
+
+	var lastLogPos uint
+	for i, event := range events {
+		if i < t.api.LogPos {
+			continue
+		}
+		if event.SteamId != t.ThemId {
+			continue
+		}
+
+		if lastLogPos < i {
+			lastLogPos = i
+		}
+
+		switch event.Action {
+		case tradeapi.Action_AddItem:
+			t.addEvent(&ItemAddedEvent{newItem(event)})
+		case tradeapi.Action_RemoveItem:
+			t.addEvent(&ItemRemovedEvent{newItem(event)})
+		case tradeapi.Action_Ready:
+			t.ThemReady = true
+			t.addEvent(new(ReadyEvent))
+		case tradeapi.Action_Unready:
+			t.ThemReady = false
+			t.addEvent(new(UnreadyEvent))
+		case tradeapi.Action_SetCurrency:
+			t.addEvent(&SetCurrencyEvent{
+				newCurrency(event),
+				event.OldAmount,
+				event.NewAmount,
+			})
+		case tradeapi.Action_ChatMessage:
+			t.addEvent(&ChatEvent{
+				event.Text,
+			})
+		}
+	}
+
+	t.api.LogPos = uint(lastLogPos) + 1
+}
+
+func (t *Trade) addEvent(event interface{}) {
+	t.queuedEvents = append(t.queuedEvents, event)
+}

vendor/github.com/Philipp15b/go-steam/trade/tradeapi/status.go

@@ -0,0 +1,111 @@
+package tradeapi
+
+import (
+	"encoding/json"
+	"github.com/Philipp15b/go-steam/jsont"
+	"github.com/Philipp15b/go-steam/steamid"
+	"strconv"
+)
+
+type Status struct {
+	Success     bool
+	Error       string
+	NewVersion  bool        `json:"newversion"`
+	TradeStatus TradeStatus `json:"trade_status"`
+	Version     uint
+	LogPos      int
+	Me          User
+	Them        User
+	Events      EventList
+}
+
+type TradeStatus uint
+
+const (
+	TradeStatus_Open      TradeStatus = 0
+	TradeStatus_Complete              = 1
+	TradeStatus_Empty                 = 2 // when both parties trade no items
+	TradeStatus_Cancelled             = 3
+	TradeStatus_Timeout               = 4 // the partner timed out
+	TradeStatus_Failed                = 5
+)
+
+type EventList map[uint]*Event
+
+// The EventList can either be an array or an object of id -> event
+func (e *EventList) UnmarshalJSON(data []byte) error {
+	// initialize the map if it's nil
+	if *e == nil {
+		*e = make(EventList)
+	}
+
+	o := make(map[string]*Event)
+	err := json.Unmarshal(data, &o)
+	// it's an object
+	if err == nil {
+		for is, event := range o {
+			i, err := strconv.ParseUint(is, 10, 32)
+			if err != nil {
+				panic(err)
+			}
+			(*e)[uint(i)] = event
+		}
+		return nil
+	}
+
+	// it's an array
+	var a []*Event
+	err = json.Unmarshal(data, &a)
+	if err != nil {
+		return err
+	}
+	for i, event := range a {
+		(*e)[uint(i)] = event
+	}
+	return nil
+}
+
+type Event struct {
+	SteamId   steamid.SteamId `json:",string"`
+	Action    Action          `json:",string"`
+	Timestamp uint64
+
+	AppId     uint32
+	ContextId uint64 `json:",string"`
+	AssetId   uint64 `json:",string"`
+
+	Text string // only used for chat messages
+
+	// The following is used for SetCurrency
+	CurrencyId uint64 `json:",string"`
+	OldAmount  uint64 `json:"old_amount,string"`
+	NewAmount  uint64 `json:"amount,string"`
+}
+
+type Action uint
+
+const (
+	Action_AddItem     Action = 0
+	Action_RemoveItem         = 1
+	Action_Ready              = 2
+	Action_Unready            = 3
+	Action_Accept             = 4
+	Action_SetCurrency        = 6
+	Action_ChatMessage        = 7
+)
+
+type User struct {
+	Ready             jsont.UintBool
+	Confirmed         jsont.UintBool
+	SecSinceTouch     int  `json:"sec_since_touch"`
+	ConnectionPending bool `json:"connection_pending"`
+	Assets            interface{}
+	Currency          interface{} // either []*Currency or empty string
+}
+
+type Currency struct {
+	AppId      uint64 `json:",string"`
+	ContextId  uint64 `json:",string"`
+	CurrencyId uint64 `json:",string"`
+	Amount     uint64 `json:",string"`
+}

vendor/github.com/Philipp15b/go-steam/trade/tradeapi/trade.go

@@ -0,0 +1,200 @@
+/*
+Wrapper around the HTTP trading API for type safety 'n' stuff.
+*/
+package tradeapi
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"github.com/Philipp15b/go-steam/community"
+	"github.com/Philipp15b/go-steam/economy/inventory"
+	"github.com/Philipp15b/go-steam/netutil"
+	"github.com/Philipp15b/go-steam/steamid"
+	"io/ioutil"
+	"net/http"
+	"regexp"
+	"strconv"
+	"time"
+)
+
+const tradeUrl = "https://steamcommunity.com/trade/%d/"
+
+type Trade struct {
+	client *http.Client
+	other  steamid.SteamId
+
+	LogPos  uint // not automatically updated
+	Version uint // Incremented for each item change by Steam; not automatically updated.
+
+	// the `sessionid` cookie is sent as a parameter/POST data for CSRF protection.
+	sessionId string
+	baseUrl   string
+}
+
+// Creates a new Trade based on the given cookies `sessionid`, `steamLogin`, `steamLoginSecure` and the trade partner's Steam ID.
+func New(sessionId, steamLogin, steamLoginSecure string, other steamid.SteamId) *Trade {
+	client := new(http.Client)
+	client.Timeout = 10 * time.Second
+
+	t := &Trade{
+		client:    client,
+		other:     other,
+		sessionId: sessionId,
+		baseUrl:   fmt.Sprintf(tradeUrl, other),
+		Version:   1,
+	}
+	community.SetCookies(t.client, sessionId, steamLogin, steamLoginSecure)
+	return t
+}
+
+type Main struct {
+	PartnerOnProbation bool
+}
+
+var onProbationRegex = regexp.MustCompile(`var g_bTradePartnerProbation = (\w+);`)
+
+// Fetches the main HTML page and parses it. Thread-safe.
+func (t *Trade) GetMain() (*Main, error) {
+	resp, err := t.client.Get(t.baseUrl)
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+	body, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		return nil, err
+	}
+
+	match := onProbationRegex.FindSubmatch(body)
+	if len(match) == 0 {
+		return nil, errors.New("tradeapi.GetMain: Could not find probation info")
+	}
+
+	return &Main{
+		string(match[1]) == "true",
+	}, nil
+}
+
+// Ajax POSTs to an API endpoint that should return a status
+func (t *Trade) postWithStatus(url string, data map[string]string) (*Status, error) {
+	status := new(Status)
+
+	req := netutil.NewPostForm(url, netutil.ToUrlValues(data))
+	// Tales of Madness and Pain, Episode 1: If you forget this, Steam will return an error
+	// saying "missing required parameter", even though they are all there. IT WAS JUST THE HEADER, ARGH!
+	req.Header.Add("Referer", t.baseUrl)
+
+	resp, err := t.client.Do(req)
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+
+	err = json.NewDecoder(resp.Body).Decode(status)
+	if err != nil {
+		return nil, err
+	}
+	return status, nil
+}
+
+func (t *Trade) GetStatus() (*Status, error) {
+	return t.postWithStatus(t.baseUrl+"tradestatus/", map[string]string{
+		"sessionid": t.sessionId,
+		"logpos":    strconv.FormatUint(uint64(t.LogPos), 10),
+		"version":   strconv.FormatUint(uint64(t.Version), 10),
+	})
+}
+
+// Thread-safe.
+func (t *Trade) GetForeignInventory(contextId uint64, appId uint32, start *uint) (*inventory.PartialInventory, error) {
+	data := map[string]string{
+		"sessionid": t.sessionId,
+		"steamid":   fmt.Sprintf("%d", t.other),
+		"contextid": strconv.FormatUint(contextId, 10),
+		"appid":     strconv.FormatUint(uint64(appId), 10),
+	}
+	if start != nil {
+		data["start"] = strconv.FormatUint(uint64(*start), 10)
+	}
+
+	req, err := http.NewRequest("GET", t.baseUrl+"foreigninventory?"+netutil.ToUrlValues(data).Encode(), nil)
+	if err != nil {
+		panic(err)
+	}
+	req.Header.Add("Referer", t.baseUrl)
+
+	return inventory.DoInventoryRequest(t.client, req)
+}
+
+// Thread-safe.
+func (t *Trade) GetOwnInventory(contextId uint64, appId uint32) (*inventory.Inventory, error) {
+	return inventory.GetOwnInventory(t.client, contextId, appId)
+}
+
+func (t *Trade) Chat(message string) (*Status, error) {
+	return t.postWithStatus(t.baseUrl+"chat", map[string]string{
+		"sessionid": t.sessionId,
+		"logpos":    strconv.FormatUint(uint64(t.LogPos), 10),
+		"version":   strconv.FormatUint(uint64(t.Version), 10),
+		"message":   message,
+	})
+}
+
+func (t *Trade) AddItem(slot uint, itemId, contextId uint64, appId uint32) (*Status, error) {
+	return t.postWithStatus(t.baseUrl+"additem", map[string]string{
+		"sessionid": t.sessionId,
+		"slot":      strconv.FormatUint(uint64(slot), 10),
+		"itemid":    strconv.FormatUint(itemId, 10),
+		"contextid": strconv.FormatUint(contextId, 10),
+		"appid":     strconv.FormatUint(uint64(appId), 10),
+	})
+}
+
+func (t *Trade) RemoveItem(slot uint, itemId, contextId uint64, appId uint32) (*Status, error) {
+	return t.postWithStatus(t.baseUrl+"removeitem", map[string]string{
+		"sessionid": t.sessionId,
+		"slot":      strconv.FormatUint(uint64(slot), 10),
+		"itemid":    strconv.FormatUint(itemId, 10),
+		"contextid": strconv.FormatUint(contextId, 10),
+		"appid":     strconv.FormatUint(uint64(appId), 10),
+	})
+}
+
+func (t *Trade) SetCurrency(amount uint, currencyId, contextId uint64, appId uint32) (*Status, error) {
+	return t.postWithStatus(t.baseUrl+"setcurrency", map[string]string{
+		"sessionid":  t.sessionId,
+		"amount":     strconv.FormatUint(uint64(amount), 10),
+		"currencyid": strconv.FormatUint(uint64(currencyId), 10),
+		"contextid":  strconv.FormatUint(contextId, 10),
+		"appid":      strconv.FormatUint(uint64(appId), 10),
+	})
+}
+
+func (t *Trade) SetReady(ready bool) (*Status, error) {
+	return t.postWithStatus(t.baseUrl+"toggleready", map[string]string{
+		"sessionid": t.sessionId,
+		"version":   strconv.FormatUint(uint64(t.Version), 10),
+		"ready":     fmt.Sprint(ready),
+	})
+}
+
+func (t *Trade) Confirm() (*Status, error) {
+	return t.postWithStatus(t.baseUrl+"confirm", map[string]string{
+		"sessionid": t.sessionId,
+		"version":   strconv.FormatUint(uint64(t.Version), 10),
+	})
+}
+
+func (t *Trade) Cancel() (*Status, error) {
+	return t.postWithStatus(t.baseUrl+"cancel", map[string]string{
+		"sessionid": t.sessionId,
+	})
+}
+
+func isSuccess(v interface{}) bool {
+	if m, ok := v.(map[string]interface{}); ok {
+		return m["success"] == true
+	}
+	return false
+}

vendor/github.com/Philipp15b/go-steam/trade/types.go

@@ -0,0 +1,67 @@
+package trade
+
+import (
+	"github.com/Philipp15b/go-steam/trade/tradeapi"
+)
+
+type TradeEndedEvent struct {
+	Reason TradeEndReason
+}
+
+type TradeEndReason uint
+
+const (
+	TradeEndReason_Complete  TradeEndReason = 1
+	TradeEndReason_Cancelled                = 2
+	TradeEndReason_Timeout                  = 3
+	TradeEndReason_Failed                   = 4
+)
+
+func newItem(event *tradeapi.Event) *Item {
+	return &Item{
+		event.AppId,
+		event.ContextId,
+		event.AssetId,
+	}
+}
+
+type Item struct {
+	AppId     uint32
+	ContextId uint64
+	AssetId   uint64
+}
+
+type ItemAddedEvent struct {
+	Item *Item
+}
+
+type ItemRemovedEvent struct {
+	Item *Item
+}
+
+type ReadyEvent struct{}
+type UnreadyEvent struct{}
+
+func newCurrency(event *tradeapi.Event) *Currency {
+	return &Currency{
+		event.AppId,
+		event.ContextId,
+		event.CurrencyId,
+	}
+}
+
+type Currency struct {
+	AppId      uint32
+	ContextId  uint64
+	CurrencyId uint64
+}
+
+type SetCurrencyEvent struct {
+	Currency  *Currency
+	OldAmount uint64
+	NewAmount uint64
+}
+
+type ChatEvent struct {
+	Message string
+}