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improve error handling for account setup from qrcode closes #3192 (#3474)

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* improve error handling for account setup from qrcode
closes #3192

* replace issue id with pr id in changelog

* Update src/qr.rs

Co-authored-by: bjoern <r10s@b44t.com>

* show response when it's invalid in success case, too

* fix changelog entry

Co-authored-by: bjoern <r10s@b44t.com>
This commit is contained in:
Simon Laux
2022-07-30 11:57:08 +02:00
committed by GitHub
parent ab52f8c55d
commit 75960e8782
2 changed files with 42 additions and 19 deletions
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59
src/qr.rs
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@@ -1,6 +1,6 @@
//! # QR code module.
use anyhow::{bail, ensure, Context as _, Error, Result};
use anyhow::{anyhow, bail, ensure, Context as _, Error, Result};
use once_cell::sync::Lazy;
use percent_encoding::percent_decode_str;
use serde::Deserialize;
@@ -14,8 +14,8 @@ use crate::context::Context;
use crate::key::Fingerprint;
use crate::message::Message;
use crate::peerstate::Peerstate;
use crate::token;
use crate::tools::time;
use crate::{token, EventType};
const OPENPGP4FPR_SCHEME: &str = "OPENPGP4FPR:"; // yes: uppercase
const DCACCOUNT_SCHEME: &str = "DCACCOUNT:";
@@ -344,10 +344,14 @@ fn decode_webrtc_instance(_context: &Context, qr: &str) -> Result<Qr> {
}
#[derive(Debug, Deserialize)]
struct CreateAccountResponse {
struct CreateAccountSuccessResponse {
email: String,
password: String,
}
#[derive(Debug, Deserialize)]
struct CreateAccountErrorResponse {
reason: String,
}
/// take a qr of the type DC_QR_ACCOUNT, parse it's parameters,
/// download additional information from the contained url and set the parameters.
@@ -355,23 +359,42 @@ struct CreateAccountResponse {
#[allow(clippy::indexing_slicing)]
async fn set_account_from_qr(context: &Context, qr: &str) -> Result<()> {
let url_str = &qr[DCACCOUNT_SCHEME.len()..];
let response = reqwest::Client::new().post(url_str).send().await?;
let response_status = response.status();
let response_text = response.text().await.with_context(|| {
format!(
"Cannot create account, request to {:?} failed: empty response",
url_str
)
})?;
let parsed: CreateAccountResponse = reqwest::Client::new()
.post(url_str)
.send()
.await?
.json()
.await
.with_context(|| format!("Cannot create account, request to {:?} failed", url_str))?;
if response_status.is_success() {
let CreateAccountSuccessResponse { password, email } = serde_json::from_str(&response_text)
.with_context(|| {
format!(
"Cannot create account, response from {:?} is malformed:\n{:?}",
url_str, response_text
)
})?;
context.set_config(Config::Addr, Some(&email)).await?;
context.set_config(Config::MailPw, Some(&password)).await?;
context
.set_config(Config::Addr, Some(&parsed.email))
.await?;
context
.set_config(Config::MailPw, Some(&parsed.password))
.await?;
Ok(())
Ok(())
} else {
match serde_json::from_str::<CreateAccountErrorResponse>(&response_text) {
Ok(error) => Err(anyhow!(error.reason)),
Err(parse_error) => {
context.emit_event(EventType::Error(format!(
"Cannot create account, server response could not be parsed:\n{:#}\nraw response:\n{}",
parse_error, response_text
)));
bail!(
"Cannot create account, unexpected server response:\n{:?}",
response_text
)
}
}
}
}
pub async fn set_config_from_qr(context: &Context, qr: &str) -> Result<()> {