mirror of
https://github.com/servalproject/serval-dna.git
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04b2a20e54
Change manifest Content-Type from rhizome-manifest/text to rhizome/manifest; format="text+binarysig" Add "Content-Transfer-Encoding" form-part headers to Java API sent form parts, although not currently checked by Rhizome RESTful interface
937 lines
34 KiB
C
937 lines
34 KiB
C
/*
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Serval DNA Rhizome HTTP RESTful interface
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Copyright (C) 2013,2014 Serval Project Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "conf.h"
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#include "serval.h"
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#include "httpd.h"
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#include "strbuf_helpers.h"
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static HTTP_RENDERER render_manifest_headers;
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static void finalise_union_read_state(httpd_request *r)
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{
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rhizome_read_close(&r->u.read_state);
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}
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static void finalise_union_rhizome_insert(httpd_request *r)
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{
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form_buf_malloc_release(&r->u.insert.manifest);
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if (r->u.insert.write.blob_fd != -1)
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rhizome_fail_write(&r->u.insert.write);
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}
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#define LIST_TOKEN_STRLEN (BASE64_ENCODED_LEN(sizeof(serval_uuid_t) + 8))
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#define alloca_list_token(rowid) list_token_to_str(alloca(LIST_TOKEN_STRLEN + 1), (rowid))
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static char *list_token_to_str(char *buf, uint64_t rowid)
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{
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struct iovec iov[2];
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iov[0].iov_base = rhizome_db_uuid.u.binary;
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iov[0].iov_len = sizeof rhizome_db_uuid.u.binary;
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iov[1].iov_base = &rowid;
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iov[1].iov_len = sizeof rowid;
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size_t n = base64url_encodev(buf, iov, 2);
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assert(n == LIST_TOKEN_STRLEN);
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buf[n] = '\0';
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return buf;
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}
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static int strn_to_list_token(const char *str, uint64_t *rowidp, const char **afterp)
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{
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unsigned char token[sizeof rhizome_db_uuid.u.binary + sizeof *rowidp];
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if (base64url_decode(token, sizeof token, str, 0, afterp, 0, NULL) != sizeof token)
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return 0;
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if (cmp_uuid_t(&rhizome_db_uuid, (serval_uuid_t *) &token) != 0)
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return 0;
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memcpy(rowidp, token + sizeof rhizome_db_uuid.u.binary, sizeof *rowidp);
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return 1;
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}
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static int http_request_rhizome_response(struct httpd_request *r, uint16_t result, const char *message, const char *payload_status_message)
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{
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uint16_t rhizome_result = 0;
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switch (r->bundle_status) {
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case RHIZOME_BUNDLE_STATUS_NEW:
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rhizome_result = 201;
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break;
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case RHIZOME_BUNDLE_STATUS_SAME:
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case RHIZOME_BUNDLE_STATUS_DUPLICATE:
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case RHIZOME_BUNDLE_STATUS_OLD:
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case RHIZOME_BUNDLE_STATUS_NO_ROOM:
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rhizome_result = 200;
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break;
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case RHIZOME_BUNDLE_STATUS_INVALID:
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case RHIZOME_BUNDLE_STATUS_FAKE:
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case RHIZOME_BUNDLE_STATUS_INCONSISTENT:
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case RHIZOME_BUNDLE_STATUS_READONLY:
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rhizome_result = 403;
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break;
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case RHIZOME_BUNDLE_STATUS_ERROR:
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rhizome_result = 500;
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break;
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}
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if (rhizome_result) {
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r->http.response.result_extra[0].label = "rhizome_bundle_status_code";
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r->http.response.result_extra[0].value.type = JSON_INTEGER;
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r->http.response.result_extra[0].value.u.integer = r->bundle_status;
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const char *status_message = rhizome_bundle_status_message(r->bundle_status);
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if (status_message) {
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r->http.response.result_extra[1].label = "rhizome_bundle_status_message";
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r->http.response.result_extra[1].value.type = JSON_STRING_NULTERM;
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r->http.response.result_extra[1].value.u.string.content = status_message;
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}
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if (rhizome_result > result) {
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result = rhizome_result;
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message = NULL;
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}
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}
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rhizome_result = 0;
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switch (r->payload_status) {
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case RHIZOME_PAYLOAD_STATUS_NEW:
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rhizome_result = 201;
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break;
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case RHIZOME_PAYLOAD_STATUS_STORED:
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case RHIZOME_PAYLOAD_STATUS_EMPTY:
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case RHIZOME_PAYLOAD_STATUS_TOO_BIG:
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case RHIZOME_PAYLOAD_STATUS_EVICTED:
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rhizome_result = 200;
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break;
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case RHIZOME_PAYLOAD_STATUS_WRONG_SIZE:
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case RHIZOME_PAYLOAD_STATUS_WRONG_HASH:
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case RHIZOME_PAYLOAD_STATUS_CRYPTO_FAIL:
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rhizome_result = 403;
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break;
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case RHIZOME_PAYLOAD_STATUS_ERROR:
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rhizome_result = 500;
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break;
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}
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if (rhizome_result) {
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r->http.response.result_extra[2].label = "rhizome_payload_status_code";
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r->http.response.result_extra[2].value.type = JSON_INTEGER;
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r->http.response.result_extra[2].value.u.integer = r->payload_status;
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const char *status_message = payload_status_message ? payload_status_message : rhizome_payload_status_message(r->payload_status);
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if (status_message) {
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r->http.response.result_extra[3].label = "rhizome_payload_status_message";
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r->http.response.result_extra[3].value.type = JSON_STRING_NULTERM;
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r->http.response.result_extra[3].value.u.string.content = status_message;
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}
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if (rhizome_result > result) {
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result = rhizome_result;
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message = NULL;
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}
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}
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if (result == 0) {
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result = 500;
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message = NULL;
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}
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http_request_simple_response(&r->http, result, message ? message : result == 403 ? "Rhizome operation failed" : NULL);
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return result;
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}
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static HTTP_CONTENT_GENERATOR restful_rhizome_bundlelist_json_content;
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int restful_rhizome_bundlelist_json(httpd_request *r, const char *remainder)
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{
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r->http.response.header.content_type = CONTENT_TYPE_JSON;
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r->http.render_extra_headers = render_manifest_headers;
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if (!is_rhizome_http_enabled())
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return 403;
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if (*remainder)
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return 404;
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if (r->http.verb != HTTP_VERB_GET)
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return 405;
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int ret = authorize_restful(&r->http);
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if (ret)
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return ret;
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r->u.rhlist.phase = LIST_HEADER;
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r->u.rhlist.rowcount = 0;
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bzero(&r->u.rhlist.cursor, sizeof r->u.rhlist.cursor);
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http_request_response_generated(&r->http, 200, CONTENT_TYPE_JSON, restful_rhizome_bundlelist_json_content);
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return 1;
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}
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static HTTP_CONTENT_GENERATOR_STRBUF_CHUNKER restful_rhizome_bundlelist_json_content_chunk;
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static int restful_rhizome_bundlelist_json_content(struct http_request *hr, unsigned char *buf, size_t bufsz, struct http_content_generator_result *result)
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{
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httpd_request *r = (httpd_request *) hr;
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int ret = rhizome_list_open(&r->u.rhlist.cursor);
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if (ret == -1)
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return -1;
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ret = generate_http_content_from_strbuf_chunks(hr, (char *)buf, bufsz, result, restful_rhizome_bundlelist_json_content_chunk);
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rhizome_list_release(&r->u.rhlist.cursor);
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return ret;
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}
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int restful_rhizome_newsince(httpd_request *r, const char *remainder)
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{
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r->http.response.header.content_type = CONTENT_TYPE_JSON;
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if (!is_rhizome_http_enabled())
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return 403;
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uint64_t rowid;
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const char *end = NULL;
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if (!strn_to_list_token(remainder, &rowid, &end) || strcmp(end, "/bundlelist.json") != 0)
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return 404;
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if (r->http.verb != HTTP_VERB_GET)
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return 405;
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int ret = authorize_restful(&r->http);
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if (ret)
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return ret;
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r->u.rhlist.phase = LIST_HEADER;
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r->u.rhlist.rowcount = 0;
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bzero(&r->u.rhlist.cursor, sizeof r->u.rhlist.cursor);
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r->u.rhlist.cursor.rowid_since = rowid;
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r->u.rhlist.end_time = gettime_ms() + config.api.restful.newsince_timeout * 1000;
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http_request_response_generated(&r->http, 200, CONTENT_TYPE_JSON, restful_rhizome_bundlelist_json_content);
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return 1;
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}
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static int restful_rhizome_bundlelist_json_content_chunk(struct http_request *hr, strbuf b)
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{
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httpd_request *r = (httpd_request *) hr;
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const char *headers[] = {
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".token",
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"_id",
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"service",
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"id",
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"version",
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"date",
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".inserttime",
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".author",
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".fromhere",
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"filesize",
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"filehash",
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"sender",
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"recipient",
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"name"
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};
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switch (r->u.rhlist.phase) {
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case LIST_HEADER:
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strbuf_puts(b, "{\n\"header\":[");
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unsigned i;
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for (i = 0; i != NELS(headers); ++i) {
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if (i)
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strbuf_putc(b, ',');
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strbuf_json_string(b, headers[i]);
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}
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strbuf_puts(b, "],\n\"rows\":[");
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if (!strbuf_overrun(b))
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r->u.rhlist.phase = LIST_ROWS;
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return 1;
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case LIST_ROWS:
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{
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int ret = rhizome_list_next(&r->u.rhlist.cursor);
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if (ret == -1)
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return -1;
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if (ret == 0) {
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time_ms_t now;
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if (r->u.rhlist.cursor.rowid_since == 0 || (now = gettime_ms()) >= r->u.rhlist.end_time) {
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r->u.rhlist.phase = LIST_END;
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return 1;
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}
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time_ms_t wake_at = now + config.api.restful.newsince_poll_ms;
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if (wake_at > r->u.rhlist.end_time)
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wake_at = r->u.rhlist.end_time;
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http_request_pause_response(&r->http, wake_at);
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return 0;
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}
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rhizome_manifest *m = r->u.rhlist.cursor.manifest;
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assert(m->filesize != RHIZOME_SIZE_UNSET);
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rhizome_lookup_author(m);
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if (r->u.rhlist.rowcount != 0)
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strbuf_putc(b, ',');
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strbuf_puts(b, "\n[");
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if (m->rowid > r->u.rhlist.rowid_highest) {
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strbuf_json_string(b, alloca_list_token(m->rowid));
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r->u.rhlist.rowid_highest = m->rowid;
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} else
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strbuf_json_null(b);
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strbuf_putc(b, ',');
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strbuf_sprintf(b, "%"PRIu64, m->rowid);
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strbuf_putc(b, ',');
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strbuf_json_string(b, m->service);
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strbuf_putc(b, ',');
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strbuf_json_hex(b, m->cryptoSignPublic.binary, sizeof m->cryptoSignPublic.binary);
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strbuf_putc(b, ',');
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strbuf_sprintf(b, "%"PRIu64, m->version);
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strbuf_putc(b, ',');
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if (m->has_date)
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strbuf_sprintf(b, "%"PRItime_ms_t, m->date);
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else
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strbuf_json_null(b);
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strbuf_putc(b, ',');
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strbuf_sprintf(b, "%"PRItime_ms_t",", m->inserttime);
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switch (m->authorship) {
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case AUTHOR_LOCAL:
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case AUTHOR_AUTHENTIC:
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strbuf_json_hex(b, m->author.binary, sizeof m->author.binary);
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strbuf_puts(b, ",1,");
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break;
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default:
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strbuf_json_null(b);
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strbuf_puts(b, ",1,");
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break;
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}
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strbuf_sprintf(b, "%"PRIu64, m->filesize);
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strbuf_putc(b, ',');
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strbuf_json_hex(b, m->filesize ? m->filehash.binary : NULL, sizeof m->filehash.binary);
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strbuf_putc(b, ',');
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strbuf_json_hex(b, m->has_sender ? m->sender.binary : NULL, sizeof m->sender.binary);
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strbuf_putc(b, ',');
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strbuf_json_hex(b, m->has_recipient ? m->recipient.binary : NULL, sizeof m->recipient.binary);
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strbuf_putc(b, ',');
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strbuf_json_string(b, m->name);
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strbuf_puts(b, "]");
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if (!strbuf_overrun(b)) {
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rhizome_list_commit(&r->u.rhlist.cursor);
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++r->u.rhlist.rowcount;
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}
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}
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return 1;
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case LIST_END:
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strbuf_puts(b, "\n]\n}\n");
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if (!strbuf_overrun(b))
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r->u.rhlist.phase = LIST_DONE;
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// fall through...
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case LIST_DONE:
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return 0;
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}
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abort();
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}
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static HTTP_REQUEST_PARSER restful_rhizome_insert_end;
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static int insert_mime_part_start(struct http_request *);
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static int insert_mime_part_end(struct http_request *);
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static int insert_mime_part_header(struct http_request *, const struct mime_part_headers *);
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static int insert_mime_part_body(struct http_request *, char *, size_t);
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int restful_rhizome_insert(httpd_request *r, const char *remainder)
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{
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r->http.response.header.content_type = CONTENT_TYPE_JSON;
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r->http.render_extra_headers = render_manifest_headers;
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if (*remainder)
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return 404;
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if (!is_rhizome_http_enabled())
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return 403;
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if (r->http.verb != HTTP_VERB_POST)
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return 405;
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int ret = authorize_restful(&r->http);
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if (ret)
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return ret;
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// Parse the request body as multipart/form-data.
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assert(r->u.insert.current_part == NULL);
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assert(!r->u.insert.received_author);
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assert(!r->u.insert.received_secret);
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assert(!r->u.insert.received_manifest);
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assert(!r->u.insert.received_payload);
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bzero(&r->u.insert.write, sizeof r->u.insert.write);
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r->u.insert.write.blob_fd = -1;
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r->finalise_union = finalise_union_rhizome_insert;
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r->http.form_data.handle_mime_part_start = insert_mime_part_start;
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r->http.form_data.handle_mime_part_end = insert_mime_part_end;
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r->http.form_data.handle_mime_part_header = insert_mime_part_header;
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r->http.form_data.handle_mime_body = insert_mime_part_body;
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// Perform the insert once the body has arrived.
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r->http.handle_content_end = restful_rhizome_insert_end;
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return 1;
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}
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static char PART_MANIFEST[] = "manifest";
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static char PART_PAYLOAD[] = "payload";
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static char PART_AUTHOR[] = "bundle-author";
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static char PART_SECRET[] = "bundle-secret";
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static int insert_mime_part_start(struct http_request *hr)
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{
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httpd_request *r = (httpd_request *) hr;
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assert(r->u.insert.current_part == NULL);
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return 0;
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}
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static int insert_make_manifest(httpd_request *r)
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{
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if (!r->u.insert.received_manifest)
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return http_response_form_part(r, "Missing", PART_MANIFEST, NULL, 0);
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if ((r->manifest = rhizome_new_manifest())) {
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if (r->u.insert.manifest.length == 0)
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return 0;
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assert(r->u.insert.manifest.length <= sizeof r->manifest->manifestdata);
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memcpy(r->manifest->manifestdata, r->u.insert.manifest.buffer, r->u.insert.manifest.length);
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r->manifest->manifest_all_bytes = r->u.insert.manifest.length;
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int n = rhizome_manifest_parse(r->manifest);
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switch (n) {
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case 0:
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if (!r->manifest->malformed)
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return 0;
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// fall through
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case 1:
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rhizome_manifest_free(r->manifest);
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r->manifest = NULL;
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r->bundle_status = RHIZOME_BUNDLE_STATUS_INVALID;
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return http_request_rhizome_response(r, 403, "Malformed manifest", NULL);
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default:
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WHYF("rhizome_manifest_parse() returned %d", n);
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// fall through
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case -1:
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r->bundle_status = RHIZOME_BUNDLE_STATUS_ERROR;
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break;
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}
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}
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return 500;
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}
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static int insert_mime_part_header(struct http_request *hr, const struct mime_part_headers *h)
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{
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httpd_request *r = (httpd_request *) hr;
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if (strcmp(h->content_disposition.type, "form-data") != 0)
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return http_response_content_disposition(r, "Unsupported", h->content_disposition.type);
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if (strcmp(h->content_disposition.name, PART_AUTHOR) == 0) {
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if (r->u.insert.received_author)
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return http_response_form_part(r, "Duplicate", PART_AUTHOR, NULL, 0);
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r->u.insert.current_part = PART_AUTHOR;
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assert(r->u.insert.author_hex_len == 0);
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}
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else if (strcmp(h->content_disposition.name, PART_SECRET) == 0) {
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if (r->u.insert.received_secret)
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return http_response_form_part(r, "Duplicate", PART_SECRET, NULL, 0);
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r->u.insert.current_part = PART_SECRET;
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assert(r->u.insert.secret_hex_len == 0);
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}
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else if (strcmp(h->content_disposition.name, PART_MANIFEST) == 0) {
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// Reject a request if it has a repeated manifest part.
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if (r->u.insert.received_manifest)
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return http_response_form_part(r, "Duplicate", PART_MANIFEST, NULL, 0);
|
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form_buf_malloc_init(&r->u.insert.manifest, MAX_MANIFEST_BYTES);
|
|
if ( strcmp(h->content_type.type, "rhizome") != 0
|
|
|| strcmp(h->content_type.subtype, "manifest") != 0
|
|
)
|
|
return http_response_form_part(r, "Unsupported Content-Type in", PART_MANIFEST, NULL, 0);
|
|
if (strcmp(h->content_type.format, "text+binarysig") != 0)
|
|
return http_response_form_part(r, "Unsupported rhizome/manifest format in", PART_MANIFEST, NULL, 0);
|
|
r->u.insert.current_part = PART_MANIFEST;
|
|
}
|
|
else if (strcmp(h->content_disposition.name, PART_PAYLOAD) == 0) {
|
|
// Reject a request if it has a repeated payload part.
|
|
if (r->u.insert.received_payload)
|
|
return http_response_form_part(r, "Duplicate", PART_PAYLOAD, NULL, 0);
|
|
// Reject a request if it has a missing manifest part preceding the payload part.
|
|
if (!r->u.insert.received_manifest)
|
|
return http_response_form_part(r, "Missing", PART_MANIFEST, NULL, 0);
|
|
assert(r->manifest != NULL);
|
|
r->u.insert.current_part = PART_PAYLOAD;
|
|
// If the manifest does not contain a 'name' field, then assign it from the payload filename.
|
|
if ( strcasecmp(RHIZOME_SERVICE_FILE, r->manifest->service) == 0
|
|
&& r->manifest->name == NULL
|
|
&& *h->content_disposition.filename
|
|
)
|
|
rhizome_manifest_set_name_from_path(r->manifest, h->content_disposition.filename);
|
|
// Start writing the payload content into the Rhizome store. Note: r->manifest->filesize can be
|
|
// RHIZOME_SIZE_UNSET at this point, if the manifest did not contain a 'filesize' field.
|
|
r->payload_status = rhizome_write_open_manifest(&r->u.insert.write, r->manifest);
|
|
r->u.insert.payload_size = 0;
|
|
switch (r->payload_status) {
|
|
case RHIZOME_PAYLOAD_STATUS_ERROR:
|
|
WHYF("rhizome_write_open_manifest() returned %d", r->payload_status);
|
|
return 500;
|
|
case RHIZOME_PAYLOAD_STATUS_STORED:
|
|
// TODO: initialise payload hash so it can be compared with stored payload
|
|
break;
|
|
default:
|
|
break; // r->payload_status gets dealt with later
|
|
}
|
|
}
|
|
else
|
|
return http_response_form_part(r, "Unsupported", h->content_disposition.name, NULL, 0);
|
|
return 0;
|
|
}
|
|
|
|
static int insert_mime_part_body(struct http_request *hr, char *buf, size_t len)
|
|
{
|
|
httpd_request *r = (httpd_request *) hr;
|
|
if (r->u.insert.current_part == PART_AUTHOR) {
|
|
accumulate_text(r, PART_AUTHOR,
|
|
r->u.insert.author_hex,
|
|
sizeof r->u.insert.author_hex,
|
|
&r->u.insert.author_hex_len,
|
|
buf, len);
|
|
}
|
|
else if (r->u.insert.current_part == PART_SECRET) {
|
|
accumulate_text(r, PART_SECRET,
|
|
r->u.insert.secret_hex,
|
|
sizeof r->u.insert.secret_hex,
|
|
&r->u.insert.secret_hex_len,
|
|
buf, len);
|
|
}
|
|
else if (r->u.insert.current_part == PART_MANIFEST) {
|
|
form_buf_malloc_accumulate(r, PART_MANIFEST, &r->u.insert.manifest, buf, len);
|
|
}
|
|
else if (r->u.insert.current_part == PART_PAYLOAD) {
|
|
r->u.insert.payload_size += len;
|
|
switch (r->payload_status) {
|
|
case RHIZOME_PAYLOAD_STATUS_NEW:
|
|
if (rhizome_write_buffer(&r->u.insert.write, (unsigned char *)buf, len) == -1)
|
|
return 500;
|
|
break;
|
|
case RHIZOME_PAYLOAD_STATUS_STORED:
|
|
// TODO: calculate payload hash so it can be compared with stored payload
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
} else
|
|
FATALF("current_part = %s", alloca_str_toprint(r->u.insert.current_part));
|
|
return 0;
|
|
}
|
|
|
|
static int insert_mime_part_end(struct http_request *hr)
|
|
{
|
|
httpd_request *r = (httpd_request *) hr;
|
|
if (r->u.insert.current_part == PART_AUTHOR) {
|
|
if ( r->u.insert.author_hex_len != sizeof r->u.insert.author_hex
|
|
|| strn_to_sid_t(&r->u.insert.author, r->u.insert.author_hex, sizeof r->u.insert.author_hex, NULL) == -1
|
|
)
|
|
return http_response_form_part(r, "Invalid", PART_AUTHOR, r->u.insert.author_hex, r->u.insert.author_hex_len);
|
|
r->u.insert.received_author = 1;
|
|
if (config.debug.rhizome)
|
|
DEBUGF("received %s = %s", PART_AUTHOR, alloca_tohex_sid_t(r->u.insert.author));
|
|
}
|
|
else if (r->u.insert.current_part == PART_SECRET) {
|
|
if ( r->u.insert.secret_hex_len != sizeof r->u.insert.secret_hex
|
|
|| strn_to_rhizome_bk_t(&r->u.insert.bundle_secret, r->u.insert.secret_hex, NULL) == -1
|
|
)
|
|
return http_response_form_part(r, "Invalid", PART_SECRET, r->u.insert.secret_hex, r->u.insert.secret_hex_len);
|
|
r->u.insert.received_secret = 1;
|
|
if (config.debug.rhizome)
|
|
DEBUGF("received %s = %s", PART_SECRET, alloca_tohex_rhizome_bk_t(r->u.insert.bundle_secret));
|
|
}
|
|
else if (r->u.insert.current_part == PART_MANIFEST) {
|
|
r->u.insert.received_manifest = 1;
|
|
if (config.debug.rhizome)
|
|
DEBUGF("received %s = %s", PART_MANIFEST, alloca_toprint(-1, r->u.insert.manifest.buffer, r->u.insert.manifest.length));
|
|
int result = insert_make_manifest(r);
|
|
if (result)
|
|
return result;
|
|
if (r->manifest->has_id && r->u.insert.received_secret)
|
|
rhizome_apply_bundle_secret(r->manifest, &r->u.insert.bundle_secret);
|
|
if (r->manifest->service == NULL)
|
|
rhizome_manifest_set_service(r->manifest, RHIZOME_SERVICE_FILE);
|
|
if (rhizome_fill_manifest(r->manifest, NULL, r->u.insert.received_author ? &r->u.insert.author: NULL) == -1) {
|
|
WHY("rhizome_fill_manifest() failed");
|
|
return 500;
|
|
}
|
|
if (r->manifest->is_journal)
|
|
return http_request_rhizome_response(r, 403, "Insert not supported for journals", NULL);
|
|
assert(r->manifest != NULL);
|
|
}
|
|
else if (r->u.insert.current_part == PART_PAYLOAD) {
|
|
r->u.insert.received_payload = 1;
|
|
switch (r->payload_status) {
|
|
case RHIZOME_PAYLOAD_STATUS_NEW:
|
|
r->payload_status = rhizome_finish_write(&r->u.insert.write);
|
|
if (r->payload_status == RHIZOME_PAYLOAD_STATUS_ERROR) {
|
|
WHYF("rhizome_finish_write() returned status = %d", r->payload_status);
|
|
return 500;
|
|
}
|
|
break;
|
|
case RHIZOME_PAYLOAD_STATUS_STORED:
|
|
// TODO: finish calculating payload hash and compare it with stored payload
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
} else
|
|
FATALF("current_part = %s", alloca_str_toprint(r->u.insert.current_part));
|
|
r->u.insert.current_part = NULL;
|
|
return 0;
|
|
}
|
|
|
|
static int restful_rhizome_insert_end(struct http_request *hr)
|
|
{
|
|
httpd_request *r = (httpd_request *) hr;
|
|
if (!r->u.insert.received_manifest)
|
|
return http_response_form_part(r, "Missing", PART_MANIFEST, NULL, 0);
|
|
if (!r->u.insert.received_payload)
|
|
return http_response_form_part(r, "Missing", PART_PAYLOAD, NULL, 0);
|
|
// Fill in the missing manifest fields and ensure payload and manifest are consistent.
|
|
assert(r->manifest != NULL);
|
|
assert(r->u.insert.write.file_length != RHIZOME_SIZE_UNSET);
|
|
int status_valid = 0;
|
|
if (config.debug.rhizome)
|
|
DEBUGF("r->payload_status=%d", r->payload_status);
|
|
switch (r->payload_status) {
|
|
case RHIZOME_PAYLOAD_STATUS_NEW:
|
|
if (r->manifest->filesize == RHIZOME_SIZE_UNSET)
|
|
rhizome_manifest_set_filesize(r->manifest, r->u.insert.write.file_length);
|
|
// fall through
|
|
case RHIZOME_PAYLOAD_STATUS_STORED:
|
|
// TODO: check that stored hash matches received payload's hash
|
|
// fall through
|
|
case RHIZOME_PAYLOAD_STATUS_EMPTY:
|
|
status_valid = 1;
|
|
assert(r->manifest->filesize != RHIZOME_SIZE_UNSET);
|
|
if (r->u.insert.payload_size == r->manifest->filesize)
|
|
break;
|
|
// fall through
|
|
case RHIZOME_PAYLOAD_STATUS_WRONG_SIZE:
|
|
r->payload_status = RHIZOME_PAYLOAD_STATUS_WRONG_SIZE;
|
|
r->bundle_status = RHIZOME_BUNDLE_STATUS_INCONSISTENT;
|
|
{
|
|
strbuf msg = strbuf_alloca(200);
|
|
strbuf_sprintf(msg, "Payload size (%"PRIu64") contradicts manifest (filesize=%"PRIu64")", r->u.insert.payload_size, r->manifest->filesize);
|
|
return http_request_rhizome_response(r, 403, NULL, strbuf_str(msg));
|
|
}
|
|
case RHIZOME_PAYLOAD_STATUS_WRONG_HASH:
|
|
r->bundle_status = RHIZOME_BUNDLE_STATUS_INCONSISTENT;
|
|
return http_request_rhizome_response(r, 403, NULL, NULL);
|
|
case RHIZOME_PAYLOAD_STATUS_CRYPTO_FAIL:
|
|
r->bundle_status = RHIZOME_BUNDLE_STATUS_READONLY;
|
|
return http_request_rhizome_response(r, 403, "Missing bundle secret", NULL);
|
|
case RHIZOME_PAYLOAD_STATUS_TOO_BIG:
|
|
case RHIZOME_PAYLOAD_STATUS_EVICTED:
|
|
r->bundle_status = RHIZOME_BUNDLE_STATUS_NO_ROOM;
|
|
// fall through
|
|
case RHIZOME_PAYLOAD_STATUS_ERROR:
|
|
return http_request_rhizome_response(r, 403, NULL, NULL);
|
|
}
|
|
if (!status_valid) {
|
|
WHYF("r->payload_status = %d", r->payload_status);
|
|
return http_request_rhizome_response(r, 500, NULL, NULL);
|
|
}
|
|
// Finalise the manifest and add it to the store.
|
|
if (r->manifest->filesize) {
|
|
if (!r->manifest->has_filehash)
|
|
rhizome_manifest_set_filehash(r->manifest, &r->u.insert.write.id);
|
|
else
|
|
assert(cmp_rhizome_filehash_t(&r->u.insert.write.id, &r->manifest->filehash) == 0);
|
|
}
|
|
const char *invalid_reason = rhizome_manifest_validate_reason(r->manifest);
|
|
if (invalid_reason) {
|
|
r->bundle_status = RHIZOME_BUNDLE_STATUS_INVALID;
|
|
return http_request_rhizome_response(r, 403, invalid_reason, NULL);
|
|
}
|
|
if (r->manifest->malformed) {
|
|
r->bundle_status = RHIZOME_BUNDLE_STATUS_INVALID;
|
|
return http_request_rhizome_response(r, 403, r->manifest->malformed, NULL);
|
|
}
|
|
if (!r->manifest->haveSecret) {
|
|
r->bundle_status = RHIZOME_BUNDLE_STATUS_READONLY;
|
|
return http_request_rhizome_response(r, 403, "Missing bundle secret", NULL);
|
|
}
|
|
rhizome_manifest *mout = NULL;
|
|
r->bundle_status = rhizome_manifest_finalise(r->manifest, &mout, !r->u.insert.force_new);
|
|
int result = 500;
|
|
if (config.debug.rhizome)
|
|
DEBUGF("r->bundle_status=%d", r->bundle_status);
|
|
switch (r->bundle_status) {
|
|
case RHIZOME_BUNDLE_STATUS_NEW:
|
|
if (mout && mout != r->manifest)
|
|
rhizome_manifest_free(mout);
|
|
result = 201;
|
|
break;
|
|
case RHIZOME_BUNDLE_STATUS_SAME:
|
|
case RHIZOME_BUNDLE_STATUS_OLD:
|
|
case RHIZOME_BUNDLE_STATUS_DUPLICATE:
|
|
if (mout && mout != r->manifest) {
|
|
rhizome_manifest_free(r->manifest);
|
|
r->manifest = mout;
|
|
}
|
|
result = 200;
|
|
break;
|
|
case RHIZOME_BUNDLE_STATUS_INVALID:
|
|
case RHIZOME_BUNDLE_STATUS_FAKE:
|
|
case RHIZOME_BUNDLE_STATUS_INCONSISTENT:
|
|
case RHIZOME_BUNDLE_STATUS_NO_ROOM:
|
|
case RHIZOME_BUNDLE_STATUS_READONLY:
|
|
case RHIZOME_BUNDLE_STATUS_ERROR:
|
|
if (mout && mout != r->manifest)
|
|
rhizome_manifest_free(mout);
|
|
rhizome_manifest_free(r->manifest);
|
|
r->manifest = NULL;
|
|
return http_request_rhizome_response(r, 0, NULL, NULL);
|
|
}
|
|
if (result == 500)
|
|
FATALF("rhizome_manifest_finalise() returned status = %d", r->bundle_status);
|
|
rhizome_authenticate_author(r->manifest);
|
|
http_request_response_static(&r->http, result, "rhizome-manifest/text",
|
|
(const char *)r->manifest->manifestdata, r->manifest->manifest_all_bytes
|
|
);
|
|
return 0;
|
|
}
|
|
|
|
static HTTP_HANDLER restful_rhizome_bid_rhm;
|
|
static HTTP_HANDLER restful_rhizome_bid_raw_bin;
|
|
static HTTP_HANDLER restful_rhizome_bid_decrypted_bin;
|
|
|
|
int restful_rhizome_(httpd_request *r, const char *remainder)
|
|
{
|
|
r->http.response.header.content_type = CONTENT_TYPE_JSON;
|
|
r->http.render_extra_headers = render_manifest_headers;
|
|
if (!is_rhizome_http_enabled())
|
|
return 403;
|
|
HTTP_HANDLER *handler = NULL;
|
|
rhizome_bid_t bid;
|
|
const char *end;
|
|
if (strn_to_rhizome_bid_t(&bid, remainder, &end) != -1) {
|
|
if (strcmp(end, ".rhm") == 0) {
|
|
handler = restful_rhizome_bid_rhm;
|
|
remainder = "";
|
|
} else if (strcmp(end, "/raw.bin") == 0) {
|
|
handler = restful_rhizome_bid_raw_bin;
|
|
remainder = "";
|
|
} else if (strcmp(end, "/decrypted.bin") == 0) {
|
|
handler = restful_rhizome_bid_decrypted_bin;
|
|
remainder = "";
|
|
}
|
|
}
|
|
if (handler == NULL)
|
|
return 404;
|
|
if (r->http.verb != HTTP_VERB_GET)
|
|
return 405;
|
|
int ret = authorize_restful(&r->http);
|
|
if (ret)
|
|
return ret;
|
|
if ((r->manifest = rhizome_new_manifest()) == NULL)
|
|
return 500;
|
|
ret = rhizome_retrieve_manifest(&bid, r->manifest);
|
|
if (ret == -1) {
|
|
rhizome_manifest_free(r->manifest);
|
|
r->manifest = NULL;
|
|
r->bundle_status = RHIZOME_BUNDLE_STATUS_ERROR;
|
|
return 500;
|
|
}
|
|
if (ret == 0) {
|
|
rhizome_authenticate_author(r->manifest);
|
|
r->bundle_status = RHIZOME_BUNDLE_STATUS_SAME;
|
|
} else {
|
|
r->bundle_status = RHIZOME_BUNDLE_STATUS_NEW;
|
|
rhizome_manifest_free(r->manifest);
|
|
r->manifest = NULL;
|
|
}
|
|
ret = handler(r, remainder);
|
|
return ret;
|
|
}
|
|
|
|
static int restful_rhizome_bid_rhm(httpd_request *r, const char *remainder)
|
|
{
|
|
if (*remainder)
|
|
return 404;
|
|
if (r->manifest == NULL)
|
|
return http_request_rhizome_response(r, 403, NULL, NULL);
|
|
http_request_response_static(&r->http, 200, "rhizome-manifest/text",
|
|
(const char *)r->manifest->manifestdata, r->manifest->manifest_all_bytes
|
|
);
|
|
return 1;
|
|
}
|
|
|
|
static int restful_rhizome_bid_raw_bin(httpd_request *r, const char *remainder)
|
|
{
|
|
if (*remainder)
|
|
return 404;
|
|
if (r->manifest == NULL)
|
|
return http_request_rhizome_response(r, 403, NULL, NULL);
|
|
if (r->manifest->filesize == 0) {
|
|
http_request_response_static(&r->http, 200, CONTENT_TYPE_BLOB, "", 0);
|
|
return 1;
|
|
}
|
|
int ret = rhizome_response_content_init_filehash(r, &r->manifest->filehash);
|
|
if (ret)
|
|
return http_request_rhizome_response(r, ret, NULL, NULL);
|
|
http_request_response_generated(&r->http, 200, CONTENT_TYPE_BLOB, rhizome_payload_content);
|
|
return 1;
|
|
}
|
|
|
|
static int restful_rhizome_bid_decrypted_bin(httpd_request *r, const char *remainder)
|
|
{
|
|
if (*remainder)
|
|
return 404;
|
|
if (r->manifest == NULL)
|
|
return http_request_rhizome_response(r, 403, NULL, NULL);
|
|
if (r->manifest->filesize == 0) {
|
|
// TODO use Content Type from manifest (once it is implemented)
|
|
http_request_response_static(&r->http, 200, CONTENT_TYPE_BLOB, "", 0);
|
|
return 1;
|
|
}
|
|
int ret = rhizome_response_content_init_payload(r, r->manifest);
|
|
if (ret)
|
|
return http_request_rhizome_response(r, ret, NULL, NULL);
|
|
// TODO use Content Type from manifest (once it is implemented)
|
|
http_request_response_generated(&r->http, 200, CONTENT_TYPE_BLOB, rhizome_payload_content);
|
|
return 1;
|
|
}
|
|
|
|
static int rhizome_response_content_init_read_state(httpd_request *r)
|
|
{
|
|
if (r->u.read_state.length == RHIZOME_SIZE_UNSET && rhizome_read(&r->u.read_state, NULL, 0)) {
|
|
rhizome_read_close(&r->u.read_state);
|
|
return 404;
|
|
}
|
|
assert(r->u.read_state.length != RHIZOME_SIZE_UNSET);
|
|
r->http.response.header.resource_length = r->u.read_state.length;
|
|
if (r->http.request_header.content_range_count > 0) {
|
|
assert(r->http.request_header.content_range_count == 1);
|
|
struct http_range closed;
|
|
unsigned n = http_range_close(&closed, r->http.request_header.content_ranges, 1, r->u.read_state.length);
|
|
if (n == 0 || http_range_bytes(&closed, 1) == 0)
|
|
return 416; // Request Range Not Satisfiable
|
|
r->http.response.header.content_range_start = closed.first;
|
|
r->http.response.header.content_length = closed.last - closed.first + 1;
|
|
r->u.read_state.offset = closed.first;
|
|
} else {
|
|
r->http.response.header.content_range_start = 0;
|
|
r->http.response.header.content_length = r->http.response.header.resource_length;
|
|
r->u.read_state.offset = 0;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int rhizome_response_content_init_filehash(httpd_request *r, const rhizome_filehash_t *hash)
|
|
{
|
|
bzero(&r->u.read_state, sizeof r->u.read_state);
|
|
r->u.read_state.blob_fd = -1;
|
|
assert(r->finalise_union == NULL);
|
|
r->finalise_union = finalise_union_read_state;
|
|
r->payload_status = rhizome_open_read(&r->u.read_state, hash);
|
|
switch (r->payload_status) {
|
|
case RHIZOME_PAYLOAD_STATUS_EMPTY:
|
|
case RHIZOME_PAYLOAD_STATUS_STORED:
|
|
return rhizome_response_content_init_read_state(r);
|
|
case RHIZOME_PAYLOAD_STATUS_NEW:
|
|
return 403;
|
|
case RHIZOME_PAYLOAD_STATUS_ERROR:
|
|
case RHIZOME_PAYLOAD_STATUS_WRONG_SIZE:
|
|
case RHIZOME_PAYLOAD_STATUS_WRONG_HASH:
|
|
case RHIZOME_PAYLOAD_STATUS_CRYPTO_FAIL:
|
|
case RHIZOME_PAYLOAD_STATUS_TOO_BIG:
|
|
case RHIZOME_PAYLOAD_STATUS_EVICTED:
|
|
return -1;
|
|
}
|
|
FATALF("rhizome_open_read() returned status = %d", r->payload_status);
|
|
}
|
|
|
|
int rhizome_response_content_init_payload(httpd_request *r, rhizome_manifest *m)
|
|
{
|
|
bzero(&r->u.read_state, sizeof r->u.read_state);
|
|
r->u.read_state.blob_fd = -1;
|
|
assert(r->finalise_union == NULL);
|
|
r->finalise_union = finalise_union_read_state;
|
|
r->payload_status = rhizome_open_decrypt_read(m, &r->u.read_state);
|
|
switch (r->payload_status) {
|
|
case RHIZOME_PAYLOAD_STATUS_EMPTY:
|
|
case RHIZOME_PAYLOAD_STATUS_STORED:
|
|
return rhizome_response_content_init_read_state(r);
|
|
case RHIZOME_PAYLOAD_STATUS_NEW:
|
|
case RHIZOME_PAYLOAD_STATUS_CRYPTO_FAIL:
|
|
return 403;
|
|
case RHIZOME_PAYLOAD_STATUS_ERROR:
|
|
case RHIZOME_PAYLOAD_STATUS_WRONG_SIZE:
|
|
case RHIZOME_PAYLOAD_STATUS_WRONG_HASH:
|
|
case RHIZOME_PAYLOAD_STATUS_TOO_BIG:
|
|
case RHIZOME_PAYLOAD_STATUS_EVICTED:
|
|
return -1;
|
|
}
|
|
FATALF("rhizome_open_decrypt_read() returned status = %d", r->payload_status);
|
|
}
|
|
|
|
int rhizome_payload_content(struct http_request *hr, unsigned char *buf, size_t bufsz, struct http_content_generator_result *result)
|
|
{
|
|
// Only read multiples of 4k from disk.
|
|
const size_t blocksz = 1 << 12;
|
|
// Ask for a large buffer for all future reads.
|
|
const size_t preferred_bufsz = 16 * blocksz;
|
|
// Reads the next part of the payload into the supplied buffer.
|
|
httpd_request *r = (httpd_request *) hr;
|
|
assert(r->u.read_state.length != RHIZOME_SIZE_UNSET);
|
|
assert(r->u.read_state.offset < r->u.read_state.length);
|
|
uint64_t remain = r->u.read_state.length - r->u.read_state.offset;
|
|
size_t readlen = bufsz;
|
|
if (remain <= bufsz)
|
|
readlen = remain;
|
|
else
|
|
readlen &= ~(blocksz - 1);
|
|
if (readlen > 0) {
|
|
ssize_t n = rhizome_read(&r->u.read_state, buf, readlen);
|
|
if (n == -1)
|
|
return -1;
|
|
result->generated = (size_t) n;
|
|
}
|
|
assert(r->u.read_state.offset <= r->u.read_state.length);
|
|
remain = r->u.read_state.length - r->u.read_state.offset;
|
|
result->need = remain < preferred_bufsz ? remain : preferred_bufsz;
|
|
return remain ? 1 : 0;
|
|
}
|
|
|
|
static void render_manifest_headers(struct http_request *hr, strbuf sb)
|
|
{
|
|
httpd_request *r = (httpd_request *) hr;
|
|
const char *status_message;
|
|
if ((status_message = rhizome_bundle_status_message(r->bundle_status))) {
|
|
strbuf_sprintf(sb, "Serval-Rhizome-Result-Bundle-Status-Code: %d\r\n", r->bundle_status);
|
|
strbuf_sprintf(sb, "Serval-Rhizome-Result-Bundle-Status-Message: %s\r\n", status_message);
|
|
}
|
|
if ((status_message = rhizome_payload_status_message(r->payload_status))) {
|
|
strbuf_sprintf(sb, "Serval-Rhizome-Result-Payload-Status-Code: %d\r\n", r->payload_status);
|
|
strbuf_sprintf(sb, "Serval-Rhizome-Result-Payload-Status-Message: %s\r\n", status_message);
|
|
}
|
|
rhizome_manifest *m = r->manifest;
|
|
if (m) {
|
|
strbuf_sprintf(sb, "Serval-Rhizome-Bundle-Id: %s\r\n", alloca_tohex_rhizome_bid_t(m->cryptoSignPublic));
|
|
strbuf_sprintf(sb, "Serval-Rhizome-Bundle-Version: %"PRIu64"\r\n", m->version);
|
|
strbuf_sprintf(sb, "Serval-Rhizome-Bundle-Filesize: %"PRIu64"\r\n", m->filesize);
|
|
if (m->filesize != 0)
|
|
strbuf_sprintf(sb, "Serval-Rhizome-Bundle-Filehash: %s\r\n", alloca_tohex_rhizome_filehash_t(m->filehash));
|
|
if (m->has_sender)
|
|
strbuf_sprintf(sb, "Serval-Rhizome-Bundle-Sender: %s\r\n", alloca_tohex_sid_t(m->sender));
|
|
if (m->has_recipient)
|
|
strbuf_sprintf(sb, "Serval-Rhizome-Bundle-Recipient: %s\r\n", alloca_tohex_sid_t(m->recipient));
|
|
if (m->has_bundle_key)
|
|
strbuf_sprintf(sb, "Serval-Rhizome-Bundle-BK: %s\r\n", alloca_tohex_rhizome_bk_t(m->bundle_key));
|
|
switch (m->payloadEncryption) {
|
|
case PAYLOAD_CRYPT_UNKNOWN:
|
|
break;
|
|
case PAYLOAD_CLEAR:
|
|
strbuf_sprintf(sb, "Serval-Rhizome-Bundle-Crypt: 0\r\n");
|
|
break;
|
|
case PAYLOAD_ENCRYPTED:
|
|
strbuf_sprintf(sb, "Serval-Rhizome-Bundle-Crypt: 1\r\n");
|
|
break;
|
|
}
|
|
if (m->is_journal)
|
|
strbuf_sprintf(sb, "Serval-Rhizome-Bundle-Tail: %"PRIu64"\r\n", m->tail);
|
|
if (m->has_date)
|
|
strbuf_sprintf(sb, "Serval-Rhizome-Bundle-Date: %"PRIu64"\r\n", m->date);
|
|
if (m->name) {
|
|
strbuf_puts(sb, "Serval-Rhizome-Bundle-Name: ");
|
|
strbuf_append_quoted_string(sb, m->name);
|
|
strbuf_puts(sb, "\r\n");
|
|
}
|
|
if (m->service)
|
|
strbuf_sprintf(sb, "Serval-Rhizome-Bundle-Service: %s\r\n", m->service);
|
|
assert(m->authorship != AUTHOR_LOCAL);
|
|
if (m->authorship == AUTHOR_AUTHENTIC)
|
|
strbuf_sprintf(sb, "Serval-Rhizome-Bundle-Author: %s\r\n", alloca_tohex_sid_t(m->author));
|
|
if (m->haveSecret) {
|
|
char secret[RHIZOME_BUNDLE_KEY_STRLEN + 1];
|
|
rhizome_bytes_to_hex_upper(m->cryptoSignSecret, secret, RHIZOME_BUNDLE_KEY_BYTES);
|
|
strbuf_sprintf(sb, "Serval-Rhizome-Bundle-Secret: %s\r\n", secret);
|
|
}
|
|
strbuf_sprintf(sb, "Serval-Rhizome-Bundle-Rowid: %"PRIu64"\r\n", m->rowid);
|
|
strbuf_sprintf(sb, "Serval-Rhizome-Bundle-Inserttime: %"PRIu64"\r\n", m->inserttime);
|
|
}
|
|
}
|