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Breadway
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36 changed files with 12338 additions and 0 deletions
221
breadpad-shared/src/calendar.rs
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221
breadpad-shared/src/calendar.rs
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use crate::config::CalendarConfig;
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use crate::types::Note;
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use anyhow::{Context, Result};
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use ical::IcalParser;
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use std::io::BufReader;
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pub struct CalDavClient {
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config: CalendarConfig,
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client: reqwest::Client,
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}
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pub struct CalDavEventInfo {
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pub uid: String,
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pub summary: String,
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}
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impl CalDavClient {
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pub fn new(config: CalendarConfig) -> Self {
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let client = reqwest::Client::builder()
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.build()
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.expect("failed to build HTTP client");
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CalDavClient { config, client }
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}
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pub async fn test_connection(&self) -> Result<()> {
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let body = r#"<?xml version="1.0"?><d:propfind xmlns:d="DAV:"><d:prop><d:displayname/></d:prop></d:propfind>"#;
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let resp = self
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.client
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.request(
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reqwest::Method::from_bytes(b"PROPFIND").unwrap(),
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&self.config.url,
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)
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.basic_auth(&self.config.username, Some(&self.config.password))
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.header("Depth", "0")
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.header("Content-Type", "application/xml; charset=utf-8")
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.body(body)
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.send()
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.await
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.context("CalDAV PROPFIND request failed")?;
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let status = resp.status();
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if status.is_success() || status.as_u16() == 207 {
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Ok(())
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} else {
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anyhow::bail!("CalDAV server returned {}", status);
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}
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}
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pub async fn push_event(&self, note: &Note) -> Result<String> {
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let uid = caldav_uid(note);
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let ical = build_ical(note, &uid);
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let url = event_url(&self.config.url, &uid);
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let resp = self
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.client
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.put(&url)
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.basic_auth(&self.config.username, Some(&self.config.password))
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.header("Content-Type", "text/calendar; charset=utf-8")
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.body(ical)
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.send()
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.await
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.context("CalDAV PUT request failed")?;
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let status = resp.status();
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if status.is_success() || status.as_u16() == 201 || status.as_u16() == 204 {
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Ok(uid)
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} else {
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anyhow::bail!("CalDAV PUT returned {}", status);
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}
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}
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pub async fn delete_event(&self, uid: &str) -> Result<()> {
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let url = event_url(&self.config.url, uid);
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let resp = self
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.client
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.delete(&url)
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.basic_auth(&self.config.username, Some(&self.config.password))
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.send()
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.await
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.context("CalDAV DELETE request failed")?;
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let status = resp.status();
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if status.is_success() || status.as_u16() == 204 || status.as_u16() == 404 {
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Ok(())
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} else {
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anyhow::bail!("CalDAV DELETE returned {}", status);
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}
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}
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pub async fn list_events(&self) -> Result<Vec<CalDavEventInfo>> {
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let body = r#"<?xml version="1.0"?>
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<c:calendar-query xmlns:d="DAV:" xmlns:c="urn:ietf:params:xml:ns:caldav">
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<d:prop>
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<d:getetag/>
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<c:calendar-data/>
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</d:prop>
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<c:filter>
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<c:comp-filter name="VCALENDAR">
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<c:comp-filter name="VEVENT"/>
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</c:comp-filter>
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</c:filter>
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</c:calendar-query>"#;
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let resp = self
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.client
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.request(
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reqwest::Method::from_bytes(b"REPORT").unwrap(),
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&self.config.url,
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)
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.basic_auth(&self.config.username, Some(&self.config.password))
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.header("Depth", "1")
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.header("Content-Type", "application/xml; charset=utf-8")
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.body(body)
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.send()
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.await
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.context("CalDAV REPORT request failed")?;
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let status = resp.status();
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if !status.is_success() && status.as_u16() != 207 {
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anyhow::bail!("CalDAV REPORT returned {}", status);
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}
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let xml = resp.text().await.context("failed to read CalDAV REPORT body")?;
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parse_report_response(&xml)
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}
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}
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pub fn caldav_uid(note: &Note) -> String {
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note.caldav_uid
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.clone()
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.unwrap_or_else(|| format!("{}@breadpad", note.id))
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}
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fn event_url(base: &str, uid: &str) -> String {
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format!("{}/{}.ics", base.trim_end_matches('/'), uid)
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}
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fn build_ical(note: &Note, uid: &str) -> String {
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let dt = note.time.unwrap_or(note.created);
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let dtstart = dt.format("%Y%m%dT%H%M%SZ").to_string();
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let summary = escape_ical(¬e.body);
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let description = escape_ical(&format!("type={}", note.note_type.as_str()));
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let mut ical = format!(
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"BEGIN:VCALENDAR\r\n\
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VERSION:2.0\r\n\
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PRODID:-//breadpad//EN\r\n\
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BEGIN:VEVENT\r\n\
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UID:{uid}\r\n\
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SUMMARY:{summary}\r\n\
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DTSTART:{dtstart}\r\n\
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DTEND:{dtstart}\r\n\
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DESCRIPTION:{description}\r\n"
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);
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if let Some(rrule) = ¬e.rrule {
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ical.push_str(rrule.as_str());
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ical.push_str("\r\n");
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}
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ical.push_str("END:VEVENT\r\nEND:VCALENDAR\r\n");
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ical
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}
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fn escape_ical(s: &str) -> String {
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s.replace('\\', "\\\\")
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.replace(';', "\\;")
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.replace(',', "\\,")
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.replace('\n', "\\n")
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}
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fn parse_report_response(xml: &str) -> Result<Vec<CalDavEventInfo>> {
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let mut events = Vec::new();
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let mut search_from = 0;
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while let Some(start) = xml[search_from..].find("BEGIN:VCALENDAR") {
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let abs_start = search_from + start;
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let tail = &xml[abs_start..];
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let end = match tail.find("END:VCALENDAR") {
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Some(e) => abs_start + e + "END:VCALENDAR".len(),
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None => break,
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};
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let ical_block = &xml[abs_start..end];
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events.extend(parse_ical_block(ical_block));
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search_from = end;
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}
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Ok(events)
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}
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fn parse_ical_block(data: &str) -> Vec<CalDavEventInfo> {
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let reader = BufReader::new(data.as_bytes());
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let parser = IcalParser::new(reader);
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let mut out = Vec::new();
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for item in parser {
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match item {
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Ok(cal) => {
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for event in cal.events {
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let uid = event
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.properties
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.iter()
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.find(|p| p.name == "UID")
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.and_then(|p| p.value.clone())
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.unwrap_or_default();
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let summary = event
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.properties
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.iter()
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.find(|p| p.name == "SUMMARY")
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.and_then(|p| p.value.clone())
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.unwrap_or_default();
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out.push(CalDavEventInfo { uid, summary });
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}
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}
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Err(e) => tracing::warn!("CalDAV: failed to parse VCALENDAR block: {}", e),
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}
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}
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out
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}
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