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package main
import (
"bufio"
"bytes"
"context"
"crypto/ed25519"
"encoding/json"
"encoding/pem"
"flag"
"fmt"
"io/ioutil"
"net/url"
"os"
"github.com/matrix-org/gomatrixserverlib"
)
var requestFrom = flag.String("from", "", "the server name that the request should originate from")
var requestKey = flag.String("key", "matrix_key.pem", "the private key to use when signing the request")
var requestPost = flag.Bool("post", false, "send a POST request instead of GET (pipe input into stdin or type followed by Ctrl-D)")
func main() {
flag.Parse()
if requestFrom == nil || *requestFrom == "" {
fmt.Println("expecting: furl -from origin.com [-key matrix_key.pem] https://path/to/url")
fmt.Println("supported flags:")
flag.PrintDefaults()
os.Exit(1)
}
data, err := ioutil.ReadFile(*requestKey)
if err != nil {
panic(err)
}
var privateKey ed25519.PrivateKey
keyBlock, _ := pem.Decode(data)
if keyBlock == nil {
panic("keyBlock is nil")
}
if keyBlock.Type == "MATRIX PRIVATE KEY" {
_, privateKey, err = ed25519.GenerateKey(bytes.NewReader(keyBlock.Bytes))
if err != nil {
panic(err)
}
} else {
panic("unexpected key block")
}
client := gomatrixserverlib.NewFederationClient(
gomatrixserverlib.ServerName(*requestFrom),
gomatrixserverlib.KeyID(keyBlock.Headers["Key-ID"]),
privateKey,
)
u, err := url.Parse(flag.Arg(0))
if err != nil {
panic(err)
}
var bodyObj interface{}
var bodyBytes []byte
method := "GET"
if *requestPost {
method = "POST"
fmt.Println("Waiting for JSON input. Press Enter followed by Ctrl-D when done...")
scan := bufio.NewScanner(os.Stdin)
for scan.Scan() {
bytes := scan.Bytes()
bodyBytes = append(bodyBytes, bytes...)
}
fmt.Println("Done!")
if err = json.Unmarshal(bodyBytes, &bodyObj); err != nil {
panic(err)
}
}
req := gomatrixserverlib.NewFederationRequest(
method,
gomatrixserverlib.ServerName(u.Host),
u.RequestURI(),
)
if *requestPost {
if err = req.SetContent(bodyObj); err != nil {
panic(err)
}
}
if err = req.Sign(
gomatrixserverlib.ServerName(*requestFrom),
gomatrixserverlib.KeyID(keyBlock.Headers["Key-ID"]),
privateKey,
); err != nil {
panic(err)
}
httpReq, err := req.HTTPRequest()
if err != nil {
panic(err)
}
var res interface{}
err = client.DoRequestAndParseResponse(
context.TODO(),
httpReq,
&res,
)
if err != nil {
panic(err)
}
j, err := json.MarshalIndent(res, "", " ")
if err != nil {
panic(err)
}
fmt.Println(string(j))
}
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