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package chat
import (
"encoding/json"
"fmt"
"io"
"log"
"net/http"
"strings"
"time"
"github.com/golang-jwt/jwt/v5"
"git.simponic.xyz/simponic/phoneof/adapters/messaging"
"git.simponic.xyz/simponic/phoneof/api/types"
"git.simponic.xyz/simponic/phoneof/database"
)
func ValidateFren(context *types.RequestContext, req *http.Request, resp http.ResponseWriter) types.ContinuationChain {
return func(success types.Continuation, failure types.Continuation) types.ContinuationChain {
fren_id := req.FormValue("fren_id")
fren, err := database.FindFren(context.DBConn, fren_id)
if err != nil || fren == nil {
log.Printf("err fetching friend %s %s", fren, err)
resp.WriteHeader(http.StatusUnauthorized)
return failure(context, req, resp)
}
context.User = fren
(*context.TemplateData)["User"] = fren
return success(context, req, resp)
}
}
func FetchMessagesContinuation(context *types.RequestContext, req *http.Request, resp http.ResponseWriter) types.ContinuationChain {
return func(success types.Continuation, failure types.Continuation) types.ContinuationChain {
before := time.Now().UTC()
var err error
if req.FormValue("before") != "" {
before, err = time.Parse(time.RFC3339, req.FormValue("before"))
if err != nil {
log.Printf("bad time: %s", err)
resp.WriteHeader(http.StatusBadRequest)
return failure(context, req, resp)
}
}
query := database.ListMessageQuery{
FrenId: context.User.Id,
Before: before,
Limit: 25,
}
messages, err := database.ListMessages(context.DBConn, query)
if err != nil {
log.Printf("err listing messages %v %s", query, err)
resp.WriteHeader(http.StatusInternalServerError)
return failure(context, req, resp)
}
(*context.TemplateData)["Messages"] = messages
return success(context, req, resp)
}
}
func SendMessageContinuation(messagingPipeline messaging.Continuation) func(context *types.RequestContext, req *http.Request, resp http.ResponseWriter) types.ContinuationChain {
return func(context *types.RequestContext, req *http.Request, resp http.ResponseWriter) types.ContinuationChain {
return func(success types.Continuation, failure types.Continuation) types.ContinuationChain {
rawMessage := req.FormValue("message")
now := time.Now().UTC()
persist := messaging.PersistMessageContinuation(context.DBConn, context.User.Id, context.Id, now, true)
var err error
messaging.LogContinuation(messaging.Message{
FrenName: context.User.Name,
Message: rawMessage,
})(messagingPipeline, messaging.FailurePassingContinuation)(persist, messaging.FailurePassingContinuation)(messaging.IdContinuation, func(message messaging.Message) messaging.ContinuationChain {
err = fmt.Errorf("err sending message from: %s %s", context.User, rawMessage)
return messaging.FailurePassingContinuation(message)
})
if err != nil {
// yeah this might be a 400 or whatever, i’ll fix it later
resp.WriteHeader(http.StatusInternalServerError)
return failure(context, req, resp)
}
return success(context, req, resp)
}
}
}
type Timestamp struct {
time.Time
}
func (p *Timestamp) UnmarshalJSON(bytes []byte) error {
var raw string
err := json.Unmarshal(bytes, &raw)
if err != nil {
log.Printf("error decoding timestamp: %s\n", err)
return err
}
p.Time, err = time.Parse(time.RFC3339, raw)
if err != nil {
log.Printf("error decoding timestamp: %s\n", err)
return err
}
return nil
}
type HttpSmsEventData struct {
Contact string `json:"contact"`
Content string `json:"content"`
Owner string `json:"owner"`
Timestamp time.Time `json:"timestamp"`
}
type HttpSmsEvent struct {
Data HttpSmsEventData `json:"data"`
Type string `json:"type"`
Id string `json:"id"`
}
func ChatEventProcessorContinuation(allowedFrom string, signingKey string, messagingPipeline messaging.Continuation) func(context *types.RequestContext, req *http.Request, resp http.ResponseWriter) types.ContinuationChain {
return func(context *types.RequestContext, req *http.Request, resp http.ResponseWriter) types.ContinuationChain {
return func(success types.Continuation, failure types.Continuation) types.ContinuationChain {
// check signing
joken := strings.Split(req.Header.Get("Authorization"), "Bearer ")
_, err := jwt.Parse(joken[1], func(token *jwt.Token) (interface{}, error) {
return []byte(signingKey), nil
})
if err != nil {
log.Printf("invalid jwt %s", err)
resp.WriteHeader(http.StatusBadRequest)
return failure(context, req, resp)
}
// decode the event
defer req.Body.Close()
body, err := io.ReadAll(req.Body)
if err != nil {
log.Printf("err reading body")
resp.WriteHeader(http.StatusInternalServerError)
return failure(context, req, resp)
}
var event HttpSmsEvent
err = json.Unmarshal(body, &event)
if err != nil {
log.Printf("err unmarshaling body")
resp.WriteHeader(http.StatusBadRequest)
return failure(context, req, resp)
}
// we only care about received messages
if event.Type != "message.phone.received" {
log.Printf("got non-receive event %s", event.Type)
return success(context, req, resp)
}
if event.Data.Contact != allowedFrom {
log.Printf("someone did something naughty %s", event.Data.Contact)
return success(context, req, resp)
}
message, err := messaging.Decode(event.Data.Content)
if err != nil {
log.Printf("err when decoding message %s", err)
resp.WriteHeader(http.StatusBadRequest)
return failure(context, req, resp)
}
fren, err := database.FindFrenByName(context.DBConn, message.FrenName)
if err != nil {
log.Printf("err when getting fren %s %s", fren.Name, err)
resp.WriteHeader(http.StatusBadRequest)
return failure(context, req, resp)
}
persist := messaging.PersistMessageContinuation(context.DBConn, fren.Id, context.Id, event.Data.Timestamp, false)
messaging.LogContinuation(*message)(messagingPipeline, messaging.FailurePassingContinuation)(persist, messaging.FailurePassingContinuation)(messaging.IdContinuation, func(message messaging.Message) messaging.ContinuationChain {
err = fmt.Errorf("err propagating stuff for message %s", message)
return messaging.FailurePassingContinuation(message)
})
if err != nil {
resp.WriteHeader(http.StatusInternalServerError)
return failure(context, req, resp)
}
return success(context, req, resp)
}
}
}
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