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serval-dna/meshms_restful.c
Andrew Bettison 7736a4ceb1 New HTTP RESTful requests: MeshMS read message(s)
2014-06-24 12:11:58 +09:30

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/*
Serval DNA MeshMS HTTP RESTful interface
Copyright (C) 2013,2014 Serval Project Inc.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "conf.h"
#include "serval.h"
#include "httpd.h"
#include "strbuf_helpers.h"
static void finalise_union_meshms_conversationlist(httpd_request *r)
{
meshms_free_conversations(r->u.mclist.conv);
r->u.mclist.conv = NULL;
}
static void finalise_union_meshms_messagelist(httpd_request *r)
{
meshms_message_iterator_close(&r->u.msglist.iter);
}
static void finalise_union_meshms_sendmessage(httpd_request *r)
{
form_buf_malloc_release(&r->u.sendmsg.message);
}
#define MESHMS_TOKEN_STRLEN (BASE64_ENCODED_LEN(sizeof(rhizome_bid_t) + sizeof(uint64_t)))
#define alloca_meshms_token(bid, offset) meshms_token_to_str(alloca(MESHMS_TOKEN_STRLEN + 1), (bid), (offset))
static char *meshms_token_to_str(char *buf, const rhizome_bid_t *bid, uint64_t offset)
{
struct iovec iov[2];
iov[0].iov_base = (void *) bid->binary;
iov[0].iov_len = sizeof bid->binary;
iov[1].iov_base = &offset;
iov[1].iov_len = sizeof offset;
size_t n = base64url_encodev(buf, iov, 2);
assert(n == MESHMS_TOKEN_STRLEN);
buf[n] = '\0';
return buf;
}
static int strn_to_meshms_token(const char *str, rhizome_bid_t *bidp, uint64_t *offsetp, const char **afterp)
{
unsigned char token[sizeof bidp->binary + sizeof *offsetp];
if (base64url_decode(token, sizeof token, str, 0, afterp, 0, NULL) != sizeof token)
return 0;
memcpy(bidp->binary, token, sizeof bidp->binary);
memcpy(offsetp, token + sizeof bidp->binary, sizeof *offsetp);
return 1;
}
static int http_request_meshms_response(struct httpd_request *r, uint16_t result, const char *message, enum meshms_status status)
{
r->http.response.result_extra_label = "meshms_status_code";
r->http.response.result_extra_value.type = JSON_INTEGER;
r->http.response.result_extra_value.u.integer = status;
switch (status) {
case MESHMS_STATUS_OK:
if (!result)
result = 200;
if (!message)
message = "OK";
break;
case MESHMS_STATUS_UPDATED:
if (!result)
result = 201;
if (!message)
message = "Updated";
break;
case MESHMS_STATUS_SID_LOCKED:
if (!result)
result = 403;
if (!message)
message = "Identity unknown";
break;
case MESHMS_STATUS_PROTOCOL_FAULT:
if (!result)
result = 403;
if (!message)
message = "MeshMS protocol fault";
break;
case MESHMS_STATUS_ERROR:
if (!result)
result = 500;
break;
default:
WHYF("Invalid MeshMS status code %d", status);
result = 500;
break;
}
assert(result != 0);
http_request_simple_response(&r->http, result, message);
return result;
}
static HTTP_HANDLER restful_meshms_conversationlist_json;
static HTTP_HANDLER restful_meshms_messagelist_json;
static HTTP_HANDLER restful_meshms_newsince_messagelist_json;
static HTTP_HANDLER restful_meshms_sendmessage;
static HTTP_HANDLER restful_meshms_read_all_conversations;
static HTTP_HANDLER restful_meshms_read_all_messages;
static HTTP_HANDLER restful_meshms_read_to_offset;
int restful_meshms_(httpd_request *r, const char *remainder)
{
r->http.response.header.content_type = CONTENT_TYPE_JSON;
if (!is_rhizome_http_enabled())
return 403;
const char *verb = HTTP_VERB_GET;
http_size_t content_length = CONTENT_LENGTH_UNKNOWN;
HTTP_HANDLER *handler = NULL;
const char *end;
if (strn_to_sid_t(&r->sid1, remainder, SIZE_MAX, &end) != -1) {
remainder = end;
if (strcmp(remainder, "/conversationlist.json") == 0) {
handler = restful_meshms_conversationlist_json;
remainder = "";
}
else if (strcmp(remainder, "/readall") == 0) {
handler = restful_meshms_read_all_conversations;
verb = HTTP_VERB_POST;
content_length = 0;
remainder = "";
}
else if (*remainder == '/' && strn_to_sid_t(&r->sid2, remainder + 1, SIZE_MAX, &end) != -1) {
remainder = end;
if (strcmp(remainder, "/messagelist.json") == 0) {
handler = restful_meshms_messagelist_json;
remainder = "";
}
else if ( str_startswith(remainder, "/newsince/", &end)
&& strn_to_meshms_token(end, &r->bid, &r->ui64, &end)
&& strcmp(end, "/messagelist.json") == 0
) {
handler = restful_meshms_newsince_messagelist_json;
remainder = "";
}
else if (strcmp(remainder, "/sendmessage") == 0) {
handler = restful_meshms_sendmessage;
verb = HTTP_VERB_POST;
remainder = "";
}
else if (strcmp(remainder, "/readall") == 0) {
handler = restful_meshms_read_all_messages;
verb = HTTP_VERB_POST;
content_length = 0;
remainder = "";
}
else if (str_startswith(remainder, "/recv/", &end)) {
remainder = end;
if (str_to_uint64(remainder, 10, &r->ui64, &end)) {
remainder = end;
if (strcmp(remainder, "/read") == 0) {
handler = restful_meshms_read_to_offset;
verb = HTTP_VERB_POST;
content_length = 0;
remainder = "";
}
}
}
}
}
if (handler == NULL)
return 404;
if (r->http.verb != verb)
return 405;
if ( content_length != CONTENT_LENGTH_UNKNOWN
&& r->http.request_header.content_length != CONTENT_LENGTH_UNKNOWN
&& r->http.request_header.content_length != content_length) {
http_request_simple_response(&r->http, 400, "Bad content length");
return 400;
}
int ret = authorize(&r->http);
if (ret)
return ret;
ret = handler(r, remainder);
return ret;
}
static HTTP_CONTENT_GENERATOR restful_meshms_conversationlist_json_content;
static int restful_meshms_conversationlist_json(httpd_request *r, const char *remainder)
{
if (*remainder)
return 404;
assert(r->finalise_union == NULL);
r->finalise_union = finalise_union_meshms_conversationlist;
r->u.mclist.phase = LIST_HEADER;
r->u.mclist.rowcount = 0;
r->u.mclist.conv = NULL;
enum meshms_status status;
if (meshms_failed(status = meshms_conversations_list(&r->sid1, NULL, &r->u.mclist.conv)))
return http_request_meshms_response(r, 0, NULL, status);
meshms_conversation_iterator_start(&r->u.mclist.iter, r->u.mclist.conv);
http_request_response_generated(&r->http, 200, CONTENT_TYPE_JSON, restful_meshms_conversationlist_json_content);
return 1;
}
static HTTP_CONTENT_GENERATOR_STRBUF_CHUNKER restful_meshms_conversationlist_json_content_chunk;
static int restful_meshms_conversationlist_json_content(struct http_request *hr, unsigned char *buf, size_t bufsz, struct http_content_generator_result *result)
{
return generate_http_content_from_strbuf_chunks(hr, (char *)buf, bufsz, result, restful_meshms_conversationlist_json_content_chunk);
}
static int restful_meshms_conversationlist_json_content_chunk(struct http_request *hr, strbuf b)
{
httpd_request *r = (httpd_request *) hr;
// The "my_sid" and "their_sid" per-conversation fields allow the same JSON structure to be used
// in a future, non-SID-specific request, eg, to list all conversations for all currently open
// identities.
const char *headers[] = {
"_id",
"my_sid",
"their_sid",
"read",
"last_message",
"read_offset"
};
switch (r->u.mclist.phase) {
case LIST_HEADER:
strbuf_puts(b, "{\n\"header\":[");
unsigned i;
for (i = 0; i != NELS(headers); ++i) {
if (i)
strbuf_putc(b, ',');
strbuf_json_string(b, headers[i]);
}
strbuf_puts(b, "],\n\"rows\":[");
if (!strbuf_overrun(b))
r->u.mclist.phase = LIST_ROWS;
return 1;
case LIST_ROWS:
if (r->u.mclist.iter.current == NULL) {
r->u.mclist.phase = LIST_END;
// fall through...
} else {
if (r->u.mclist.rowcount != 0)
strbuf_putc(b, ',');
strbuf_puts(b, "\n[");
strbuf_sprintf(b, "%zu", r->u.mclist.rowcount);
strbuf_putc(b, ',');
strbuf_json_hex(b, r->sid1.binary, sizeof r->sid1.binary);
strbuf_putc(b, ',');
strbuf_json_hex(b, r->u.mclist.iter.current->them.binary, sizeof r->u.mclist.iter.current->them.binary);
strbuf_putc(b, ',');
strbuf_json_boolean(b, r->u.mclist.iter.current->read_offset >= r->u.mclist.iter.current->their_last_message);
strbuf_putc(b, ',');
strbuf_sprintf(b, "%"PRIu64, r->u.mclist.iter.current->their_last_message);
strbuf_putc(b, ',');
strbuf_sprintf(b, "%"PRIu64, r->u.mclist.iter.current->read_offset);
strbuf_puts(b, "]");
if (!strbuf_overrun(b)) {
meshms_conversation_iterator_advance(&r->u.mclist.iter);
++r->u.mclist.rowcount;
}
return 1;
}
// fall through...
case LIST_END:
strbuf_puts(b, "\n]\n}\n");
if (!strbuf_overrun(b))
r->u.mclist.phase = LIST_DONE;
// fall through...
case LIST_DONE:
return 0;
}
abort();
return 0;
}
static HTTP_CONTENT_GENERATOR restful_meshms_messagelist_json_content;
static enum meshms_status reopen_meshms_message_iterator(httpd_request *r)
{
if (!meshms_message_iterator_is_open(&r->u.msglist.iter)) {
enum meshms_status status;
if ( meshms_failed(status = meshms_message_iterator_open(&r->u.msglist.iter, &r->sid1, &r->sid2))
|| meshms_failed(status = meshms_message_iterator_prev(&r->u.msglist.iter))
)
return status;
r->u.msglist.finished = status != MESHMS_STATUS_UPDATED;
if (!r->u.msglist.finished) {
r->u.msglist.latest_which_ply = r->u.msglist.iter.which_ply;
r->u.msglist.latest_offset = r->u.msglist.iter.offset;
}
}
return MESHMS_STATUS_OK;
}
static int restful_meshms_messagelist_json(httpd_request *r, const char *remainder)
{
if (*remainder)
return 404;
assert(r->finalise_union == NULL);
r->finalise_union = finalise_union_meshms_messagelist;
r->u.msglist.rowcount = 0;
r->u.msglist.phase = LIST_HEADER;
r->u.msglist.token_offset = 0;
r->u.msglist.end_time = 0;
enum meshms_status status;
if (meshms_failed(status = reopen_meshms_message_iterator(r)))
return http_request_meshms_response(r, 0, NULL, status);
http_request_response_generated(&r->http, 200, CONTENT_TYPE_JSON, restful_meshms_messagelist_json_content);
return 1;
}
static int restful_meshms_newsince_messagelist_json(httpd_request *r, const char *remainder)
{
if (*remainder)
return 404;
assert(r->finalise_union == NULL);
r->finalise_union = finalise_union_meshms_messagelist;
r->u.msglist.rowcount = 0;
r->u.msglist.phase = LIST_HEADER;
enum meshms_status status;
if (meshms_failed(status = reopen_meshms_message_iterator(r)))
return http_request_meshms_response(r, 0, NULL, status);
if (cmp_rhizome_bid_t(&r->bid, r->u.msglist.iter.my_ply_bid) == 0)
r->u.msglist.token_which_ply = MY_PLY;
else if (cmp_rhizome_bid_t(&r->bid, r->u.msglist.iter.their_ply_bid) == 0)
r->u.msglist.token_which_ply = THEIR_PLY;
else {
http_request_simple_response(&r->http, 404, "Unmatched token");
return 404;
}
r->u.msglist.token_offset = r->ui64;
r->u.msglist.end_time = gettime_ms() + config.rhizome.api.restful.newsince_timeout * 1000;
http_request_response_generated(&r->http, 200, CONTENT_TYPE_JSON, restful_meshms_messagelist_json_content);
return 1;
}
static HTTP_CONTENT_GENERATOR_STRBUF_CHUNKER restful_meshms_messagelist_json_content_chunk;
static int restful_meshms_messagelist_json_content(struct http_request *hr, unsigned char *buf, size_t bufsz, struct http_content_generator_result *result)
{
httpd_request *r = (httpd_request *) hr;
if (meshms_failed(reopen_meshms_message_iterator(r)))
return -1;
return generate_http_content_from_strbuf_chunks(hr, (char *)buf, bufsz, result, restful_meshms_messagelist_json_content_chunk);
}
static int restful_meshms_messagelist_json_content_chunk(struct http_request *hr, strbuf b)
{
httpd_request *r = (httpd_request *) hr;
// Include "my_sid" and "their_sid" per-message, so that the same JSON structure can be used by a
// future, non-SID-specific request (eg, to get all messages for all currently open identities).
const char *headers[] = {
"type",
"my_sid",
"their_sid",
"offset",
"token",
"text",
"delivered",
"read",
"ack_offset"
};
switch (r->u.msglist.phase) {
case LIST_HEADER:
strbuf_puts(b, "{\n");
if (!r->u.msglist.end_time) {
strbuf_sprintf(b, "\"read_offset\":%"PRIu64",\n\"latest_ack_offset\":%"PRIu64",\n",
r->u.msglist.iter.read_offset,
r->u.msglist.iter.latest_ack_my_offset
);
}
strbuf_puts(b, "\"header\":[");
unsigned i;
for (i = 0; i != NELS(headers); ++i) {
if (i)
strbuf_putc(b, ',');
strbuf_json_string(b, headers[i]);
}
strbuf_puts(b, "],\n\"rows\":[");
if (!strbuf_overrun(b))
r->u.msglist.phase = r->u.msglist.finished ? LIST_END : LIST_ROWS;
return 1;
case LIST_ROWS:
{
if ( r->u.msglist.finished
|| (r->u.msglist.token_which_ply == r->u.msglist.iter.which_ply && r->u.msglist.iter.offset <= r->u.msglist.token_offset)
) {
time_ms_t now;
if (r->u.msglist.end_time && (now = gettime_ms()) < r->u.msglist.end_time) {
r->u.msglist.token_which_ply = r->u.msglist.latest_which_ply;
r->u.msglist.token_offset = r->u.msglist.latest_offset;
meshms_message_iterator_close(&r->u.msglist.iter);
time_ms_t wake_at = now + config.rhizome.api.restful.newsince_poll_ms;
if (wake_at > r->u.msglist.end_time)
wake_at = r->u.msglist.end_time;
http_request_pause_response(&r->http, wake_at);
return 0;
}
} else {
switch (r->u.msglist.iter.type) {
case MESSAGE_SENT:
if (r->u.msglist.rowcount != 0)
strbuf_putc(b, ',');
strbuf_puts(b, "\n[");
strbuf_json_string(b, ">");
strbuf_putc(b, ',');
strbuf_json_hex(b, r->u.msglist.iter.my_sid->binary, sizeof r->u.msglist.iter.my_sid->binary);
strbuf_putc(b, ',');
strbuf_json_hex(b, r->u.msglist.iter.their_sid->binary, sizeof r->u.msglist.iter.their_sid->binary);
strbuf_putc(b, ',');
strbuf_sprintf(b, "%"PRIu64, r->u.msglist.iter.offset);
strbuf_putc(b, ',');
strbuf_json_string(b, alloca_meshms_token(&r->u.msglist.iter._conv->my_ply.bundle_id, r->u.msglist.iter.offset));
strbuf_putc(b, ',');
strbuf_json_string(b, r->u.msglist.iter.text);
strbuf_putc(b, ',');
strbuf_json_boolean(b, r->u.msglist.iter.delivered);
strbuf_putc(b, ',');
strbuf_json_boolean(b, 0);
strbuf_putc(b, ',');
strbuf_json_null(b);
strbuf_puts(b, "]");
break;
case MESSAGE_RECEIVED:
if (r->u.msglist.rowcount != 0)
strbuf_putc(b, ',');
strbuf_puts(b, "\n[");
strbuf_json_string(b, "<");
strbuf_putc(b, ',');
strbuf_json_hex(b, r->u.msglist.iter.my_sid->binary, sizeof r->u.msglist.iter.my_sid->binary);
strbuf_putc(b, ',');
strbuf_json_hex(b, r->u.msglist.iter.their_sid->binary, sizeof r->u.msglist.iter.their_sid->binary);
strbuf_putc(b, ',');
strbuf_sprintf(b, "%"PRIu64, r->u.msglist.iter.offset);
strbuf_putc(b, ',');
strbuf_json_string(b, alloca_meshms_token(&r->u.msglist.iter._conv->their_ply.bundle_id, r->u.msglist.iter.offset));
strbuf_putc(b, ',');
strbuf_json_string(b, r->u.msglist.iter.text);
strbuf_putc(b, ',');
strbuf_json_boolean(b, 1);
strbuf_putc(b, ',');
strbuf_json_boolean(b, r->u.msglist.iter.read);
strbuf_putc(b, ',');
strbuf_json_null(b);
strbuf_puts(b, "]");
break;
case ACK_RECEIVED:
// Don't send old (irrelevant) ACKs.
if (r->u.msglist.iter.ack_offset > r->u.msglist.highest_ack_offset) {
if (r->u.msglist.rowcount != 0)
strbuf_putc(b, ',');
strbuf_puts(b, "\n[");
strbuf_json_string(b, "ACK");
strbuf_putc(b, ',');
strbuf_json_hex(b, r->u.msglist.iter.my_sid->binary, sizeof r->u.msglist.iter.my_sid->binary);
strbuf_putc(b, ',');
strbuf_json_hex(b, r->u.msglist.iter.their_sid->binary, sizeof r->u.msglist.iter.their_sid->binary);
strbuf_putc(b, ',');
strbuf_sprintf(b, "%"PRIu64, r->u.msglist.iter.offset);
strbuf_putc(b, ',');
strbuf_json_string(b, alloca_meshms_token(&r->u.msglist.iter._conv->their_ply.bundle_id, r->u.msglist.iter.offset));
strbuf_putc(b, ',');
strbuf_json_string(b, r->u.msglist.iter.text);
strbuf_putc(b, ',');
strbuf_json_boolean(b, 1);
strbuf_putc(b, ',');
strbuf_json_boolean(b, r->u.msglist.iter.read);
strbuf_putc(b, ',');
strbuf_sprintf(b, "%"PRIu64, r->u.msglist.iter.ack_offset);
strbuf_puts(b, "]");
r->u.msglist.highest_ack_offset = r->u.msglist.iter.ack_offset;
}
break;
}
if (!strbuf_overrun(b)) {
++r->u.msglist.rowcount;
enum meshms_status status;
if (meshms_failed(status = meshms_message_iterator_prev(&r->u.msglist.iter)))
return http_request_meshms_response(r, 0, NULL, status);
r->u.msglist.finished = status != MESHMS_STATUS_UPDATED;
}
return 1;
}
r->u.msglist.phase = LIST_END;
}
// fall through...
case LIST_END:
strbuf_puts(b, "\n]\n}\n");
if (!strbuf_overrun(b))
r->u.msglist.phase = LIST_DONE;
// fall through...
case LIST_DONE:
return 0;
}
abort();
return 0;
}
static HTTP_REQUEST_PARSER restful_meshms_sendmessage_end;
static int send_mime_part_start(struct http_request *);
static int send_mime_part_end(struct http_request *);
static int send_mime_part_header(struct http_request *, const struct mime_part_headers *);
static int send_mime_part_body(struct http_request *, char *, size_t);
static int restful_meshms_sendmessage(httpd_request *r, const char *remainder)
{
if (*remainder)
return 404;
assert(r->finalise_union == NULL);
r->finalise_union = finalise_union_meshms_sendmessage;
// Parse the request body as multipart/form-data.
assert(r->u.sendmsg.current_part == NULL);
assert(!r->u.sendmsg.received_message);
r->http.form_data.handle_mime_part_start = send_mime_part_start;
r->http.form_data.handle_mime_part_end = send_mime_part_end;
r->http.form_data.handle_mime_part_header = send_mime_part_header;
r->http.form_data.handle_mime_body = send_mime_part_body;
// Send the message once the body has arrived.
r->http.handle_content_end = restful_meshms_sendmessage_end;
return 1;
}
static char PART_MESSAGE[] = "message";
static int send_mime_part_start(struct http_request *hr)
{
httpd_request *r = (httpd_request *) hr;
assert(r->u.sendmsg.current_part == NULL);
return 0;
}
static int send_mime_part_end(struct http_request *hr)
{
httpd_request *r = (httpd_request *) hr;
if (r->u.sendmsg.current_part == PART_MESSAGE) {
if (r->u.sendmsg.message.length == 0)
return http_response_form_part(r, "Invalid (empty)", PART_MESSAGE, NULL, 0);
r->u.sendmsg.received_message = 1;
if (config.debug.httpd)
DEBUGF("received %s = %s", PART_MESSAGE, alloca_toprint(-1, r->u.sendmsg.message.buffer, r->u.sendmsg.message.length));
} else
FATALF("current_part = %s", alloca_str_toprint(r->u.sendmsg.current_part));
r->u.sendmsg.current_part = NULL;
return 0;
}
static int send_mime_part_header(struct http_request *hr, const struct mime_part_headers *h)
{
httpd_request *r = (httpd_request *) hr;
if (strcmp(h->content_disposition.type, "form-data") != 0)
return http_response_content_disposition(r, "Unsupported", h->content_disposition.type);
if (strcmp(h->content_disposition.name, PART_MESSAGE) == 0) {
if (r->u.sendmsg.received_message)
return http_response_form_part(r, "Duplicate", PART_MESSAGE, NULL, 0);
r->u.sendmsg.current_part = PART_MESSAGE;
form_buf_malloc_init(&r->u.sendmsg.message, MESHMS_MESSAGE_MAX_LEN);
}
else
return http_response_form_part(r, "Unsupported", h->content_disposition.name, NULL, 0);
if (!h->content_type.type[0] || !h->content_type.subtype[0])
return http_response_content_type(r, "Missing", &h->content_type);
if (strcmp(h->content_type.type, "text") != 0 || strcmp(h->content_type.subtype, "plain") != 0)
return http_response_content_type(r, "Unsupported", &h->content_type);
if (!h->content_type.charset[0])
return http_response_content_type(r, "Missing charset", &h->content_type);
if (strcmp(h->content_type.charset, "utf-8") != 0)
return http_response_content_type(r, "Unsupported charset", &h->content_type);
return 0;
}
static int send_mime_part_body(struct http_request *hr, char *buf, size_t len)
{
httpd_request *r = (httpd_request *) hr;
if (r->u.sendmsg.current_part == PART_MESSAGE) {
form_buf_malloc_accumulate(r, PART_MESSAGE, &r->u.sendmsg.message, buf, len);
} else
FATALF("current_part = %s", alloca_str_toprint(r->u.sendmsg.current_part));
return 0;
}
static int restful_meshms_sendmessage_end(struct http_request *hr)
{
httpd_request *r = (httpd_request *) hr;
if (!r->u.sendmsg.received_message)
return http_response_form_part(r, "Missing", PART_MESSAGE, NULL, 0);
assert(r->u.sendmsg.message.length > 0);
assert(r->u.sendmsg.message.length <= MESHMS_MESSAGE_MAX_LEN);
enum meshms_status status;
if (meshms_failed(status = meshms_send_message(&r->sid1, &r->sid2, r->u.sendmsg.message.buffer, r->u.sendmsg.message.length)))
return http_request_meshms_response(r, 0, NULL, status);
return http_request_meshms_response(r, 201, "Message sent", status);
}
static int restful_meshms_read_all_conversations(httpd_request *r, const char *remainder)
{
if (*remainder)
return 404;
assert(r->finalise_union == NULL);
enum meshms_status status;
if (meshms_failed(status = meshms_mark_read(&r->sid1, NULL, UINT64_MAX)))
return http_request_meshms_response(r, 0, NULL, status);
if (status == MESHMS_STATUS_UPDATED)
return http_request_meshms_response(r, 201, "Read offsets updated", status);
return http_request_meshms_response(r, 200, "Read offsets unchanged", status);
}
static int restful_meshms_read_all_messages(httpd_request *r, const char *remainder)
{
if (*remainder)
return 404;
assert(r->finalise_union == NULL);
enum meshms_status status;
if (meshms_failed(status = meshms_mark_read(&r->sid1, &r->sid2, UINT64_MAX)))
return http_request_meshms_response(r, 0, NULL, status);
if (status == MESHMS_STATUS_UPDATED)
return http_request_meshms_response(r, 201, "Read offset updated", status);
return http_request_meshms_response(r, 200, "Read offset unchanged", status);
}
static int restful_meshms_read_to_offset(httpd_request *r, const char *remainder)
{
if (*remainder)
return 404;
assert(r->finalise_union == NULL);
enum meshms_status status;
if (meshms_failed(status = meshms_mark_read(&r->sid1, &r->sid2, r->ui64)))
return http_request_meshms_response(r, 0, NULL, status);
if (status == MESHMS_STATUS_UPDATED)
return http_request_meshms_response(r, 201, "Read offset updated", status);
return http_request_meshms_response(r, 200, "Read offset unchanged", status);
}
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