static int accept_sub(SLNSessionRef const session, strarg_t const knownURI, HTTPConnectionRef const conn, HTTPHeadersRef const headers) {
strarg_t const type = HTTPHeadersGet(headers, "Content-Type");
if(!type) return 415; // Unsupported Media Type
SLNSubmissionRef sub = NULL;
int rc = SLNSubmissionCreate(session, knownURI, type, &sub);
if(rc < 0) goto cleanup;
for(;;) {
uv_buf_t buf[1] = {};
rc = HTTPConnectionReadBody(conn, buf);
if(rc < 0) goto cleanup;
if(0 == buf->len) break;
rc = SLNSubmissionWrite(sub, (byte_t const *)buf->base, buf->len);
if(rc < 0) goto cleanup;
}
rc = SLNSubmissionEnd(sub);
if(rc < 0) goto cleanup;
rc = SLNSubmissionStoreBatch(&sub, 1);
if(rc < 0) goto cleanup;
strarg_t const location = SLNSubmissionGetPrimaryURI(sub);
if(!location) rc = UV_ENOMEM;
if(rc < 0) goto cleanup;
created(location, conn);
cleanup:
SLNSubmissionFree(&sub);
if(UV_EACCES == rc) return 403; // Forbidden
if(UV_UNKNOWN == rc) return 400; // Bad Request
if(SLN_HASHMISMATCH == rc) return 409; // Conflict
if(rc < 0) return 500;
return 0;
}
ssize_t HTTPConnectionReadBodyStatic(HTTPConnectionRef const conn, byte_t *const out, size_t const max) {
if(!conn) return UV_EINVAL;
ssize_t len = 0;
for(;;) {
uv_buf_t buf[1];
int rc = HTTPConnectionReadBody(conn, buf);
if(rc < 0) return rc;
if(!buf->len) break;
if(len+buf->len >= max) return UV_EMSGSIZE;
memcpy(out, buf->base, buf->len);
len += buf->len;
}
return len;
}
static int import(SLNPullRef const pull, strarg_t const URI, size_t const pos, HTTPConnectionRef *const conn) {
if(!pull) return 0;
// TODO: Even if there's nothing to do, we have to enqueue something to fill up our reserved slots. I guess it's better than doing a lot of work inside the connection lock, but there's got to be a better way.
SLNSubmissionRef sub = NULL;
HTTPHeadersRef headers = NULL;
if(!URI) goto enqueue;
str_t algo[SLN_ALGO_SIZE];
str_t hash[SLN_HASH_SIZE];
if(SLNParseURI(URI, algo, hash) < 0) goto enqueue;
int rc = SLNSessionGetFileInfo(pull->session, URI, NULL);
if(rc >= 0) goto enqueue;
db_assertf(DB_NOTFOUND == rc, "Database error: %s", sln_strerror(rc));
// TODO: We're logging out of order when we do it like this...
// alogf("Pulling %s\n", URI);
if(!*conn) {
rc = HTTPConnectionCreateOutgoing(pull->host, 0, conn);
if(rc < 0) {
alogf("Pull import connection error: %s\n", sln_strerror(rc));
goto fail;
}
}
str_t *path = aasprintf("/sln/file/%s/%s", algo, hash);
if(!path) {
alogf("Pull aasprintf error\n");
goto fail;
}
rc = HTTPConnectionWriteRequest(*conn, HTTP_GET, path, pull->host);
assert(rc >= 0); // TODO
FREE(&path);
HTTPConnectionWriteHeader(*conn, "Cookie", pull->cookie);
HTTPConnectionBeginBody(*conn);
rc = HTTPConnectionEnd(*conn);
if(rc < 0) {
alogf("Pull import request error: %s\n", sln_strerror(rc));
goto fail;
}
int const status = HTTPConnectionReadResponseStatus(*conn);
if(status < 0) {
alogf("Pull import response error: %s\n", sln_strerror(status));
goto fail;
}
if(status < 200 || status >= 300) {
alogf("Pull import status error: %d\n", status);
goto fail;
}
rc = HTTPHeadersCreateFromConnection(*conn, &headers);
assert(rc >= 0); // TODO
/* if(rc < 0) {
alogf("Pull import headers error %s\n", sln_strerror(rc));
goto fail;
}*/
strarg_t const type = HTTPHeadersGet(headers, "content-type");
rc = SLNSubmissionCreate(pull->session, URI, &sub);
if(rc < 0) {
alogf("Pull submission error: %s\n", sln_strerror(rc));
goto fail;
}
rc = SLNSubmissionSetType(sub, type);
if(rc < 0) {
alogf("Pull submission type error: %s\n", sln_strerror(rc));
goto fail;
}
for(;;) {
if(pull->stop) goto fail;
uv_buf_t buf[1] = {};
rc = HTTPConnectionReadBody(*conn, buf);
if(rc < 0) {
alogf("Pull download error: %s\n", sln_strerror(rc));
goto fail;
}
if(0 == buf->len) break;
rc = SLNSubmissionWrite(sub, (byte_t *)buf->base, buf->len);
if(rc < 0) {
alogf("Pull write error\n");
goto fail;
}
}
rc = SLNSubmissionEnd(sub);
if(rc < 0) {
alogf("Pull submission error: %s\n", sln_strerror(rc));
goto fail;
}
enqueue:
HTTPHeadersFree(&headers);
async_mutex_lock(pull->mutex);
pull->queue[pos] = sub; sub = NULL;
pull->filled[pos] = true;
async_cond_broadcast(pull->cond);
async_mutex_unlock(pull->mutex);
return 0;
fail:
HTTPHeadersFree(&headers);
SLNSubmissionFree(&sub);
HTTPConnectionFree(conn);
return -1;
}
