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use fastly::{Request, Response};
use fastly::kv_store::KVStore;
use fastly::mime::Mime;
use std::time::{Duration, Instant};
use std::io::ErrorKind;
use sqlite_vfs::{DatabaseHandle, LockKind, OpenKind, OpenOptions, Vfs, WalDisabled};
pub fn main() {
eprintln!("version: {}", std::env::var("FASTLY_SERVICE_VERSION").unwrap());
let r = Request::from_client();
let start = std::time::Instant::now();
sqlite_vfs::register("memvfs", InMemVfs {}, true).unwrap();
let db = rusqlite::Connection::open_with_flags_and_vfs(
"state.db",
rusqlite::OpenFlags::SQLITE_OPEN_READ_WRITE,
"memvfs",
).expect("can open db");
let resp_body: String = handle_req(db, &r).unwrap();
let mut resp = Response::new();
resp.set_body(resp_body);
// resp.set_content_type(Mime::HTML);
// associated item not found in `Mime` ???
resp.set_header("content-type", "text/html");
resp.set_header("version", std::env::var("FASTLY_SERVICE_VERSION").unwrap());
resp.set_header("host", std::env::var("FASTLY_HOSTNAME").unwrap());
resp.set_header("render-time", start.elapsed().as_micros().to_string());
resp.send_to_client()
}
struct InMemVfsHandle {
bytes: Vec<u8>
}
impl DatabaseHandle for InMemVfsHandle {
type WalIndex = WalDisabled;
fn size(&self) -> Result<u64, std::io::Error> {
Ok(self.bytes.len() as u64)
}
fn read_exact_at(&mut self, buf: &mut [u8], offset: u64) -> Result<(), std::io::Error> {
buf.copy_from_slice(&self.bytes[offset as usize..][..buf.len()]);
Ok(())
}
fn write_all_at(&mut self, buf: &[u8], offset: u64) -> Result<(), std::io::Error> {
Err(std::io::Error::new(ErrorKind::Other, "no can do"))
}
fn sync(&mut self, data_only: bool) -> Result<(), std::io::Error> {
Ok(())
}
fn set_len(&mut self, size: u64) -> Result<(), std::io::Error> {
Err(std::io::Error::new(ErrorKind::Other, "no can do"))
}
fn lock(&mut self, lock: sqlite_vfs::LockKind) -> Result<bool, std::io::Error> {
Ok(true)
}
fn reserved(&mut self) -> Result<bool, std::io::Error> {
Ok(false)
}
fn current_lock(&self) -> Result<sqlite_vfs::LockKind, std::io::Error> {
Ok(sqlite_vfs::LockKind::None)
}
fn wal_index(&self, readonly: bool) -> Result<WalDisabled, std::io::Error> {
Ok(WalDisabled::default())
}
fn set_chunk_size(&self, chunk_size: usize) -> Result<(), std::io::Error> {
Err(std::io::Error::new(ErrorKind::Other, "no can do"))
}
}
struct InMemVfs;
impl Vfs for InMemVfs {
type Handle = InMemVfsHandle;
fn open(&self, db: &str, opts: OpenOptions) -> Result<Self::Handle, std::io::Error> {
if opts.kind != OpenKind::MainDb {
return Err(std::io::Error::new(ErrorKind::Other, "no"));
}
let store = KVStore::open("ci-state")
.expect("can open ci-state")
.expect("ci-state exists");
let bytes = store.lookup_bytes(db).expect("lookup_works").expect("bytes exist");
Ok(InMemVfsHandle { bytes })
}
fn delete(&self, _db: &str) -> Result<(), std::io::Error> {
// do nothing for deletes
Err(std::io::Error::new(ErrorKind::Other, "no can do"))
}
fn exists(&self, db: &str) -> Result<bool, std::io::Error> {
Ok(false)
}
fn temporary_name(&self) -> String {
"temp name".to_string()
}
fn random(&self, buffer: &mut [i8]) {
rand::Rng::fill(&mut rand::thread_rng(), buffer);
}
fn sleep(&self, duration: Duration) -> Duration {
let now = Instant::now();
std::thread::sleep(duration);
now.elapsed()
}
}
pub fn handle_req(db: rusqlite::Connection, req: &Request) -> Result<String, String> {
use ci_lib_core::dbctx::DbCtx;
use std::sync::Arc;
use std::sync::Mutex;
let ctx = Arc::new(DbCtx {
config_path: "/".into(),
conn: Mutex::new(db),
});
if req.get_url().path() == "/" {
ci_lib_web::build_repo_index(&ctx)
} else {
Ok("a".to_string())
}
}
|
