+++ /dev/null
-/*-
- * Copyright 2016 Vsevolod Stakhov
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-#include "config.h"
-#include "../../contrib/mumhash/mum.h"
-#include "http_private.h"
-#include "utlist.h"
-#include "util.h"
-#include "printf.h"
-#include "logger.h"
-#include "ref.h"
-#include "ottery.h"
-#include "keypair_private.h"
-#include "cryptobox.h"
-#include "unix-std.h"
-#include "libutil/ssl_util.h"
-#include "libutil/regexp.h"
-#include "libserver/url.h"
-
-#include <openssl/err.h>
-
-#define ENCRYPTED_VERSION " HTTP/1.0"
-
-struct _rspamd_http_privbuf {
- rspamd_fstring_t *data;
- const gchar *zc_buf;
- gsize zc_remain;
- ref_entry_t ref;
-};
-
-enum rspamd_http_priv_flags {
- RSPAMD_HTTP_CONN_FLAG_ENCRYPTED = 1 << 0,
- RSPAMD_HTTP_CONN_FLAG_NEW_HEADER = 1 << 1,
- RSPAMD_HTTP_CONN_FLAG_RESETED = 1 << 2,
- RSPAMD_HTTP_CONN_FLAG_TOO_LARGE = 1 << 3,
- RSPAMD_HTTP_CONN_FLAG_ENCRYPTION_NEEDED = 1 << 4,
-};
-
-#define IS_CONN_ENCRYPTED(c) ((c)->flags & RSPAMD_HTTP_CONN_FLAG_ENCRYPTED)
-#define IS_CONN_RESETED(c) ((c)->flags & RSPAMD_HTTP_CONN_FLAG_RESETED)
-
-struct rspamd_http_connection_private {
- gpointer ssl_ctx;
- struct rspamd_ssl_connection *ssl;
- struct _rspamd_http_privbuf *buf;
- struct rspamd_cryptobox_pubkey *peer_key;
- struct rspamd_cryptobox_keypair *local_key;
- struct rspamd_http_header *header;
- struct http_parser parser;
- struct http_parser_settings parser_cb;
- struct event ev;
- struct timeval tv;
- struct timeval *ptv;
- struct rspamd_http_message *msg;
- struct iovec *out;
- guint outlen;
- enum rspamd_http_priv_flags flags;
- gsize wr_pos;
- gsize wr_total;
-};
-
-enum http_magic_type {
- HTTP_MAGIC_PLAIN = 0,
- HTTP_MAGIC_HTML,
- HTTP_MAGIC_CSS,
- HTTP_MAGIC_JS,
- HTTP_MAGIC_PNG,
- HTTP_MAGIC_JPG
-};
-
-static const struct _rspamd_http_magic {
- const gchar *ext;
- const gchar *ct;
-} http_file_types[] = {
- [HTTP_MAGIC_PLAIN] = { "txt", "text/plain" },
- [HTTP_MAGIC_HTML] = { "html", "text/html" },
- [HTTP_MAGIC_CSS] = { "css", "text/css" },
- [HTTP_MAGIC_JS] = { "js", "application/javascript" },
- [HTTP_MAGIC_PNG] = { "png", "image/png" },
- [HTTP_MAGIC_JPG] = { "jpg", "image/jpeg" },
-};
-
-static const gchar *http_week[] = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" };
-static const gchar *http_month[] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun",
- "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
-static const rspamd_ftok_t key_header = {
- .begin = "Key",
- .len = 3
-};
-static const rspamd_ftok_t date_header = {
- .begin = "Date",
- .len = 4
-};
-static const rspamd_ftok_t last_modified_header = {
- .begin = "Last-Modified",
- .len = 13
-};
-
-static void rspamd_http_message_storage_cleanup (struct rspamd_http_message *msg);
-static gboolean rspamd_http_message_grow_body (struct rspamd_http_message *msg,
- gsize len);
-
-#define HTTP_ERROR http_error_quark ()
-GQuark
-http_error_quark (void)
-{
- return g_quark_from_static_string ("http-error-quark");
-}
-
-static void
-rspamd_http_privbuf_dtor (gpointer ud)
-{
- struct _rspamd_http_privbuf *p = (struct _rspamd_http_privbuf *)ud;
-
- if (p->data) {
- rspamd_fstring_free (p->data);
- }
-
- g_free (p);
-}
-
-static const gchar *
-rspamd_http_code_to_str (gint code)
-{
- if (code == 200) {
- return "OK";
- }
- else if (code == 404) {
- return "Not found";
- }
- else if (code == 403 || code == 401) {
- return "Not authorized";
- }
- else if (code >= 400 && code < 500) {
- return "Bad request";
- }
- else if (code >= 300 && code < 400) {
- return "See Other";
- }
- else if (code >= 500 && code < 600) {
- return "Internal server error";
- }
-
- return "Unknown error";
-}
-
-/*
- * Obtained from nginx
- * Copyright (C) Igor Sysoev
- */
-static guint mday[] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
-
-time_t
-rspamd_http_parse_date (const gchar *header, gsize len)
-{
- const gchar *p, *end;
- gint month;
- guint day, year, hour, min, sec;
- guint64 time;
- enum {
- no = 0, rfc822, /* Tue, 10 Nov 2002 23:50:13 */
- rfc850, /* Tuesday, 10-Dec-02 23:50:13 */
- isoc /* Tue Dec 10 23:50:13 2002 */
- } fmt;
-
- fmt = 0;
- if (len > 0) {
- end = header + len;
- }
- else {
- end = header + strlen (header);
- }
-
- day = 32;
- year = 2038;
-
- for (p = header; p < end; p++) {
- if (*p == ',') {
- break;
- }
-
- if (*p == ' ') {
- fmt = isoc;
- break;
- }
- }
-
- for (p++; p < end; p++)
- if (*p != ' ') {
- break;
- }
-
- if (end - p < 18) {
- return (time_t)-1;
- }
-
- if (fmt != isoc) {
- if (*p < '0' || *p > '9' || *(p + 1) < '0' || *(p + 1) > '9') {
- return (time_t)-1;
- }
-
- day = (*p - '0') * 10 + *(p + 1) - '0';
- p += 2;
-
- if (*p == ' ') {
- if (end - p < 18) {
- return (time_t)-1;
- }
- fmt = rfc822;
-
- }
- else if (*p == '-') {
- fmt = rfc850;
-
- }
- else {
- return (time_t)-1;
- }
-
- p++;
- }
-
- switch (*p) {
-
- case 'J':
- month = *(p + 1) == 'a' ? 0 : *(p + 2) == 'n' ? 5 : 6;
- break;
-
- case 'F':
- month = 1;
- break;
-
- case 'M':
- month = *(p + 2) == 'r' ? 2 : 4;
- break;
-
- case 'A':
- month = *(p + 1) == 'p' ? 3 : 7;
- break;
-
- case 'S':
- month = 8;
- break;
-
- case 'O':
- month = 9;
- break;
-
- case 'N':
- month = 10;
- break;
-
- case 'D':
- month = 11;
- break;
-
- default:
- return (time_t)-1;
- }
-
- p += 3;
-
- if ((fmt == rfc822 && *p != ' ') || (fmt == rfc850 && *p != '-')) {
- return (time_t)-1;
- }
-
- p++;
-
- if (fmt == rfc822) {
- if (*p < '0' || *p > '9' || *(p + 1) < '0' || *(p + 1) > '9'
- || *(p + 2) < '0' || *(p + 2) > '9' || *(p + 3) < '0'
- || *(p + 3) > '9') {
- return (time_t)-1;
- }
-
- year = (*p - '0') * 1000 + (*(p + 1) - '0') * 100
- + (*(p + 2) - '0') * 10 + *(p + 3) - '0';
- p += 4;
-
- }
- else if (fmt == rfc850) {
- if (*p < '0' || *p > '9' || *(p + 1) < '0' || *(p + 1) > '9') {
- return (time_t)-1;
- }
-
- year = (*p - '0') * 10 + *(p + 1) - '0';
- year += (year < 70) ? 2000 : 1900;
- p += 2;
- }
-
- if (fmt == isoc) {
- if (*p == ' ') {
- p++;
- }
-
- if (*p < '0' || *p > '9') {
- return (time_t)-1;
- }
-
- day = *p++ - '0';
-
- if (*p != ' ') {
- if (*p < '0' || *p > '9') {
- return (time_t)-1;
- }
-
- day = day * 10 + *p++ - '0';
- }
-
- if (end - p < 14) {
- return (time_t)-1;
- }
- }
-
- if (*p++ != ' ') {
- return (time_t)-1;
- }
-
- if (*p < '0' || *p > '9' || *(p + 1) < '0' || *(p + 1) > '9') {
- return (time_t)-1;
- }
-
- hour = (*p - '0') * 10 + *(p + 1) - '0';
- p += 2;
-
- if (*p++ != ':') {
- return (time_t)-1;
- }
-
- if (*p < '0' || *p > '9' || *(p + 1) < '0' || *(p + 1) > '9') {
- return (time_t)-1;
- }
-
- min = (*p - '0') * 10 + *(p + 1) - '0';
- p += 2;
-
- if (*p++ != ':') {
- return (time_t)-1;
- }
-
- if (*p < '0' || *p > '9' || *(p + 1) < '0' || *(p + 1) > '9') {
- return (time_t)-1;
- }
-
- sec = (*p - '0') * 10 + *(p + 1) - '0';
-
- if (fmt == isoc) {
- p += 2;
-
- if (*p++ != ' ') {
- return (time_t)-1;
- }
-
- if (*p < '0' || *p > '9' || *(p + 1) < '0' || *(p + 1) > '9'
- || *(p + 2) < '0' || *(p + 2) > '9' || *(p + 3) < '0'
- || *(p + 3) > '9') {
- return (time_t)-1;
- }
-
- year = (*p - '0') * 1000 + (*(p + 1) - '0') * 100
- + (*(p + 2) - '0') * 10 + *(p + 3) - '0';
- }
-
- if (hour > 23 || min > 59 || sec > 59) {
- return (time_t)-1;
- }
-
- if (day == 29 && month == 1) {
- if ((year & 3) || ((year % 100 == 0) && (year % 400) != 0)) {
- return (time_t)-1;
- }
-
- }
- else if (day > mday[month]) {
- return (time_t)-1;
- }
-
- /*
- * shift new year to March 1 and start months from 1 (not 0),
- * it is needed for Gauss' formula
- */
-
- if (--month <= 0) {
- month += 12;
- year -= 1;
- }
-
- /* Gauss' formula for Gregorian days since March 1, 1 BC */
-
- time = (guint64) (
- /* days in years including leap years since March 1, 1 BC */
-
- 365 * year + year / 4 - year / 100 + year / 400
-
- /* days before the month */
-
- + 367 * month / 12 - 30
-
- /* days before the day */
-
- + day - 1
-
- /*
- * 719527 days were between March 1, 1 BC and March 1, 1970,
- * 31 and 28 days were in January and February 1970
- */
-
- - 719527 + 31 + 28) * 86400 + hour * 3600 + min * 60 + sec;
-
- return (time_t) time;
-}
-
-static void
-rspamd_http_parse_key (rspamd_ftok_t *data, struct rspamd_http_connection *conn,
- struct rspamd_http_connection_private *priv)
-{
- guchar *decoded_id;
- const gchar *eq_pos;
- gsize id_len;
- struct rspamd_cryptobox_pubkey *pk;
-
- if (priv->local_key == NULL) {
- /* In this case we cannot do anything, e.g. we cannot decrypt payload */
- priv->flags &= ~RSPAMD_HTTP_CONN_FLAG_ENCRYPTED;
- }
- else {
- /* Check sanity of what we have */
- eq_pos = memchr (data->begin, '=', data->len);
- if (eq_pos != NULL) {
- decoded_id = rspamd_decode_base32 (data->begin, eq_pos - data->begin,
- &id_len);
-
- if (decoded_id != NULL && id_len >= RSPAMD_KEYPAIR_SHORT_ID_LEN) {
- pk = rspamd_pubkey_from_base32 (eq_pos + 1,
- data->begin + data->len - eq_pos - 1,
- RSPAMD_KEYPAIR_KEX,
- RSPAMD_CRYPTOBOX_MODE_25519);
- if (pk != NULL) {
- if (memcmp (rspamd_keypair_get_id (priv->local_key),
- decoded_id,
- RSPAMD_KEYPAIR_SHORT_ID_LEN) == 0) {
- priv->msg->peer_key = pk;
-
- if (conn->cache && priv->msg->peer_key) {
- rspamd_keypair_cache_process (conn->cache,
- priv->local_key, priv->msg->peer_key);
- }
- }
- else {
- rspamd_pubkey_unref (pk);
- }
- }
- }
-
- priv->flags |= RSPAMD_HTTP_CONN_FLAG_ENCRYPTED;
- g_free (decoded_id);
- }
- }
-}
-
-static inline void
-rspamd_http_check_special_header (struct rspamd_http_connection *conn,
- struct rspamd_http_connection_private *priv)
-{
- if (rspamd_ftok_casecmp (&priv->header->name, &date_header) == 0) {
- priv->msg->date = rspamd_http_parse_date (priv->header->value.begin,
- priv->header->value.len);
- }
- else if (rspamd_ftok_casecmp (&priv->header->name, &key_header) == 0) {
- rspamd_http_parse_key (&priv->header->value, conn, priv);
- }
- else if (rspamd_ftok_casecmp (&priv->header->name, &last_modified_header) == 0) {
- priv->msg->last_modified = rspamd_http_parse_date (
- priv->header->value.begin,
- priv->header->value.len);
- }
-}
-
-static gint
-rspamd_http_on_url (http_parser * parser, const gchar *at, size_t length)
-{
- struct rspamd_http_connection *conn =
- (struct rspamd_http_connection *)parser->data;
- struct rspamd_http_connection_private *priv;
-
- priv = conn->priv;
-
- priv->msg->url = rspamd_fstring_append (priv->msg->url, at, length);
-
- return 0;
-}
-
-static gint
-rspamd_http_on_status (http_parser * parser, const gchar *at, size_t length)
-{
- struct rspamd_http_connection *conn =
- (struct rspamd_http_connection *)parser->data;
- struct rspamd_http_connection_private *priv;
-
- priv = conn->priv;
-
- if (parser->status_code != 200) {
- if (priv->msg->status == NULL) {
- priv->msg->status = rspamd_fstring_new ();
- }
-
- priv->msg->status = rspamd_fstring_append (priv->msg->status, at, length);
- }
-
- return 0;
-}
-
-static void
-rspamd_http_finish_header (struct rspamd_http_connection *conn,
- struct rspamd_http_connection_private *priv)
-{
- struct rspamd_http_header *hdr;
-
- priv->header->combined = rspamd_fstring_append (priv->header->combined,
- "\r\n", 2);
- priv->header->value.len = priv->header->combined->len -
- priv->header->name.len - 4;
- priv->header->value.begin = priv->header->combined->str +
- priv->header->name.len + 2;
- priv->header->name.begin = priv->header->combined->str;
-
- HASH_FIND (hh, priv->msg->headers, priv->header->name.begin,
- priv->header->name.len, hdr);
-
- if (hdr == NULL) {
- HASH_ADD_KEYPTR (hh, priv->msg->headers, priv->header->name.begin,
- priv->header->name.len, priv->header);
- }
-
- DL_APPEND (hdr, priv->header);
-
- rspamd_http_check_special_header (conn, priv);
-}
-
-static void
-rspamd_http_init_header (struct rspamd_http_connection_private *priv)
-{
- priv->header = g_malloc0 (sizeof (struct rspamd_http_header));
- priv->header->combined = rspamd_fstring_new ();
-}
-
-static gint
-rspamd_http_on_header_field (http_parser * parser,
- const gchar *at,
- size_t length)
-{
- struct rspamd_http_connection *conn =
- (struct rspamd_http_connection *)parser->data;
- struct rspamd_http_connection_private *priv;
-
- priv = conn->priv;
-
- if (priv->header == NULL) {
- rspamd_http_init_header (priv);
- }
- else if (priv->flags & RSPAMD_HTTP_CONN_FLAG_NEW_HEADER) {
- rspamd_http_finish_header (conn, priv);
- rspamd_http_init_header (priv);
- }
-
- priv->flags &= ~RSPAMD_HTTP_CONN_FLAG_NEW_HEADER;
- priv->header->combined = rspamd_fstring_append (priv->header->combined,
- at, length);
-
- return 0;
-}
-
-static gint
-rspamd_http_on_header_value (http_parser * parser,
- const gchar *at,
- size_t length)
-{
- struct rspamd_http_connection *conn =
- (struct rspamd_http_connection *)parser->data;
- struct rspamd_http_connection_private *priv;
-
- priv = conn->priv;
-
- if (priv->header == NULL) {
- /* Should not happen */
- return -1;
- }
-
- if (!(priv->flags & RSPAMD_HTTP_CONN_FLAG_NEW_HEADER)) {
- priv->flags |= RSPAMD_HTTP_CONN_FLAG_NEW_HEADER;
- priv->header->combined = rspamd_fstring_append (priv->header->combined,
- ": ", 2);
- priv->header->name.len = priv->header->combined->len - 2;
- }
-
- priv->header->combined = rspamd_fstring_append (priv->header->combined,
- at, length);
-
- return 0;
-}
-
-static int
-rspamd_http_on_headers_complete (http_parser * parser)
-{
- struct rspamd_http_connection *conn =
- (struct rspamd_http_connection *)parser->data;
- struct rspamd_http_connection_private *priv;
- struct rspamd_http_message *msg;
- int ret;
-
- priv = conn->priv;
- msg = priv->msg;
-
- if (priv->header != NULL) {
- rspamd_http_finish_header (conn, priv);
-
- priv->header = NULL;
- priv->flags &= ~RSPAMD_HTTP_CONN_FLAG_NEW_HEADER;
- }
-
- if (msg->method == HTTP_HEAD) {
- /* We don't care about the rest */
- if (rspamd_event_pending (&priv->ev, EV_READ)) {
- event_del (&priv->ev);
- }
-
- msg->code = parser->status_code;
- rspamd_http_connection_ref (conn);
- ret = conn->finish_handler (conn, msg);
- conn->finished = TRUE;
- rspamd_http_connection_unref (conn);
-
- return ret;
- }
-
- /*
- * HTTP parser sets content length to (-1) when it doesn't know the real
- * length, for example, in case of chunked encoding.
- *
- * Hence, we skip body setup here
- */
- if (parser->content_length != ULLONG_MAX && parser->content_length != 0) {
- if (conn->max_size > 0 &&
- parser->content_length > conn->max_size) {
- /* Too large message */
- priv->flags |= RSPAMD_HTTP_CONN_FLAG_TOO_LARGE;
- return -1;
- }
-
- if (!rspamd_http_message_set_body (msg, NULL, parser->content_length)) {
- return -1;
- }
- }
-
- if (parser->flags & F_SPAMC) {
- msg->flags |= RSPAMD_HTTP_FLAG_SPAMC;
- }
-
-
- msg->method = parser->method;
- msg->code = parser->status_code;
-
- return 0;
-}
-
-static void
-rspamd_http_switch_zc (struct _rspamd_http_privbuf *pbuf,
- struct rspamd_http_message *msg)
-{
- pbuf->zc_buf = msg->body_buf.begin + msg->body_buf.len;
- pbuf->zc_remain = msg->body_buf.allocated_len - msg->body_buf.len;
-}
-
-static int
-rspamd_http_on_body (http_parser * parser, const gchar *at, size_t length)
-{
- struct rspamd_http_connection *conn =
- (struct rspamd_http_connection *)parser->data;
- struct rspamd_http_connection_private *priv;
- struct rspamd_http_message *msg;
- struct _rspamd_http_privbuf *pbuf;
- const gchar *p;
-
- priv = conn->priv;
- msg = priv->msg;
- pbuf = priv->buf;
- p = at;
-
- if (!(msg->flags & RSPAMD_HTTP_FLAG_HAS_BODY)) {
- if (!rspamd_http_message_set_body (msg, NULL, parser->content_length)) {
- return -1;
- }
- }
-
- if (conn->finished) {
- return 0;
- }
-
- if (conn->max_size > 0 &&
- msg->body_buf.len + length > conn->max_size) {
- /* Body length overflow */
- priv->flags |= RSPAMD_HTTP_CONN_FLAG_TOO_LARGE;
- return -1;
- }
-
- if (!pbuf->zc_buf) {
- if (!rspamd_http_message_append_body (msg, at, length)) {
- return -1;
- }
-
- /* We might have some leftover in our private buffer */
- if (pbuf->data->len == length) {
- /* Switch to zero-copy mode */
- rspamd_http_switch_zc (pbuf, msg);
- }
- }
- else {
- if (msg->body_buf.begin + msg->body_buf.len != at) {
- /* Likely chunked encoding */
- memmove ((gchar *)msg->body_buf.begin + msg->body_buf.len, at, length);
- p = msg->body_buf.begin + msg->body_buf.len;
- }
-
- /* Adjust zero-copy buf */
- msg->body_buf.len += length;
-
- if (!(msg->flags & RSPAMD_HTTP_FLAG_SHMEM)) {
- msg->body_buf.c.normal->len += length;
- }
-
- pbuf->zc_buf = msg->body_buf.begin + msg->body_buf.len;
- pbuf->zc_remain = msg->body_buf.allocated_len - msg->body_buf.len;
- }
-
- if ((conn->opts & RSPAMD_HTTP_BODY_PARTIAL) && !IS_CONN_ENCRYPTED (priv)) {
- /* Incremental update is impossible for encrypted requests so far */
- return (conn->body_handler (conn, msg, p, length));
- }
-
- return 0;
-}
-
-static int
-rspamd_http_on_body_decrypted (http_parser * parser, const gchar *at, size_t length)
-{
- struct rspamd_http_connection *conn =
- (struct rspamd_http_connection *)parser->data;
- struct rspamd_http_connection_private *priv;
-
- priv = conn->priv;
-
- if (priv->header != NULL) {
- rspamd_http_finish_header (conn, priv);
- priv->header = NULL;
- }
-
- if (conn->finished) {
- return 0;
- }
-
- if (priv->msg->body_buf.len == 0) {
-
- priv->msg->body_buf.begin = at;
- priv->msg->method = parser->method;
- priv->msg->code = parser->status_code;
- }
-
- priv->msg->body_buf.len += length;
-
- return 0;
-}
-
-static int
-rspamd_http_on_headers_complete_decrypted (http_parser *parser)
-{
- struct rspamd_http_connection *conn =
- (struct rspamd_http_connection *) parser->data;
- struct rspamd_http_connection_private *priv;
- struct rspamd_http_message *msg;
- int ret;
-
- priv = conn->priv;
- msg = priv->msg;
-
- if (priv->header != NULL) {
- rspamd_http_finish_header (conn, priv);
-
- priv->header = NULL;
- priv->flags &= ~RSPAMD_HTTP_CONN_FLAG_NEW_HEADER;
- }
-
- if (parser->flags & F_SPAMC) {
- priv->msg->flags |= RSPAMD_HTTP_FLAG_SPAMC;
- }
-
- if (msg->method == HTTP_HEAD) {
- /* We don't care about the rest */
- if (rspamd_event_pending (&priv->ev, EV_READ)) {
- event_del (&priv->ev);
- }
-
- msg->code = parser->status_code;
- rspamd_http_connection_ref (conn);
- ret = conn->finish_handler (conn, msg);
- conn->finished = TRUE;
- rspamd_http_connection_unref (conn);
-
- return ret;
- }
-
- priv->msg->method = parser->method;
- priv->msg->code = parser->status_code;
-
- return 0;
-}
-
-static int
-rspamd_http_decrypt_message (struct rspamd_http_connection *conn,
- struct rspamd_http_connection_private *priv,
- struct rspamd_cryptobox_pubkey *peer_key)
-{
- guchar *nonce, *m;
- const guchar *nm;
- gsize dec_len;
- struct rspamd_http_message *msg = priv->msg;
- struct rspamd_http_header *hdr, *hdrtmp, *hcur, *hcurtmp;
- struct http_parser decrypted_parser;
- struct http_parser_settings decrypted_cb;
- enum rspamd_cryptobox_mode mode;
-
- mode = rspamd_keypair_alg (priv->local_key);
- nonce = msg->body_buf.str;
- m = msg->body_buf.str + rspamd_cryptobox_nonce_bytes (mode) +
- rspamd_cryptobox_mac_bytes (mode);
- dec_len = msg->body_buf.len - rspamd_cryptobox_nonce_bytes (mode) -
- rspamd_cryptobox_mac_bytes (mode);
-
- if ((nm = rspamd_pubkey_get_nm (peer_key, priv->local_key)) == NULL) {
- nm = rspamd_pubkey_calculate_nm (peer_key, priv->local_key);
- }
-
- if (!rspamd_cryptobox_decrypt_nm_inplace (m, dec_len, nonce,
- nm, m - rspamd_cryptobox_mac_bytes (mode), mode)) {
- msg_err ("cannot verify encrypted message, first bytes of the input: %*xs",
- (gint)MIN(msg->body_buf.len, 64), msg->body_buf.begin);
- return -1;
- }
-
- /* Cleanup message */
- HASH_ITER (hh, msg->headers, hdr, hdrtmp) {
- HASH_DELETE (hh, msg->headers, hdr);
-
- DL_FOREACH_SAFE (hdr, hcur, hcurtmp) {
- rspamd_fstring_free (hcur->combined);
- g_free (hcur);
- }
- }
-
- msg->headers = NULL;
-
- if (msg->url != NULL) {
- msg->url = rspamd_fstring_assign (msg->url, "", 0);
- }
-
- msg->body_buf.len = 0;
-
- memset (&decrypted_parser, 0, sizeof (decrypted_parser));
- http_parser_init (&decrypted_parser,
- conn->type == RSPAMD_HTTP_SERVER ? HTTP_REQUEST : HTTP_RESPONSE);
-
- memset (&decrypted_cb, 0, sizeof (decrypted_cb));
- decrypted_cb.on_url = rspamd_http_on_url;
- decrypted_cb.on_status = rspamd_http_on_status;
- decrypted_cb.on_header_field = rspamd_http_on_header_field;
- decrypted_cb.on_header_value = rspamd_http_on_header_value;
- decrypted_cb.on_headers_complete = rspamd_http_on_headers_complete_decrypted;
- decrypted_cb.on_body = rspamd_http_on_body_decrypted;
- decrypted_parser.data = conn;
- decrypted_parser.content_length = dec_len;
-
- if (http_parser_execute (&decrypted_parser, &decrypted_cb, m,
- dec_len) != (size_t)dec_len) {
- msg_err ("HTTP parser error: %s when parsing encrypted request",
- http_errno_description (decrypted_parser.http_errno));
- return -1;
- }
-
- return 0;
-}
-
-static int
-rspamd_http_on_message_complete (http_parser * parser)
-{
- struct rspamd_http_connection *conn =
- (struct rspamd_http_connection *)parser->data;
- struct rspamd_http_connection_private *priv;
- int ret = 0;
- enum rspamd_cryptobox_mode mode;
-
- if (conn->finished) {
- return 0;
- }
-
- priv = conn->priv;
-
- if ((conn->opts & RSPAMD_HTTP_REQUIRE_ENCRYPTION) && !IS_CONN_ENCRYPTED (priv)) {
- priv->flags |= RSPAMD_HTTP_CONN_FLAG_ENCRYPTION_NEEDED;
- msg_err ("unencrypted connection when encryption has been requested");
- return -1;
- }
-
- if ((conn->opts & RSPAMD_HTTP_BODY_PARTIAL) == 0 && IS_CONN_ENCRYPTED (priv)) {
- mode = rspamd_keypair_alg (priv->local_key);
-
- if (priv->local_key == NULL || priv->msg->peer_key == NULL ||
- priv->msg->body_buf.len < rspamd_cryptobox_nonce_bytes (mode) +
- rspamd_cryptobox_mac_bytes (mode)) {
- msg_err ("cannot decrypt message");
- return -1;
- }
-
- /* We have keys, so we can decrypt message */
- ret = rspamd_http_decrypt_message (conn, priv, priv->msg->peer_key);
-
- if (ret != 0) {
- return ret;
- }
-
- if (conn->body_handler != NULL) {
- rspamd_http_connection_ref (conn);
- ret = conn->body_handler (conn,
- priv->msg,
- priv->msg->body_buf.begin,
- priv->msg->body_buf.len);
- rspamd_http_connection_unref (conn);
- }
- }
- else if ((conn->opts & RSPAMD_HTTP_BODY_PARTIAL) == 0 && conn->body_handler) {
- g_assert (conn->body_handler != NULL);
- rspamd_http_connection_ref (conn);
- ret = conn->body_handler (conn,
- priv->msg,
- priv->msg->body_buf.begin,
- priv->msg->body_buf.len);
- rspamd_http_connection_unref (conn);
- }
-
- if (ret == 0) {
- if (rspamd_event_pending (&priv->ev, EV_READ)) {
- event_del (&priv->ev);
- }
-
- rspamd_http_connection_ref (conn);
- ret = conn->finish_handler (conn, priv->msg);
- conn->finished = TRUE;
- rspamd_http_connection_unref (conn);
- }
-
- return ret;
-}
-
-static void
-rspamd_http_simple_client_helper (struct rspamd_http_connection *conn)
-{
- struct event_base *base;
- struct rspamd_http_connection_private *priv;
- gpointer ssl;
- gint request_method;
-
- priv = conn->priv;
- base = conn->priv->ev.ev_base;
- ssl = priv->ssl;
- priv->ssl = NULL;
- request_method = priv->msg->method;
- rspamd_http_connection_reset (conn);
- priv->ssl = ssl;
- /* Plan read message */
-
- if (conn->opts & RSPAMD_HTTP_CLIENT_SHARED) {
- rspamd_http_connection_read_message_shared (conn, conn->ud, conn->fd,
- conn->priv->ptv, base);
- }
- else {
- rspamd_http_connection_read_message (conn, conn->ud, conn->fd,
- conn->priv->ptv, base);
- }
-
- priv->msg->method = request_method;
-}
-
-static void
-rspamd_http_write_helper (struct rspamd_http_connection *conn)
-{
- struct rspamd_http_connection_private *priv;
- struct iovec *start;
- guint niov, i;
- gint flags = 0;
- gsize remain;
- gssize r;
- GError *err;
- struct iovec *cur_iov;
- struct msghdr msg;
-
- priv = conn->priv;
-
- if (priv->wr_pos == priv->wr_total) {
- goto call_finish_handler;
- }
-
- start = &priv->out[0];
- niov = priv->outlen;
- remain = priv->wr_pos;
- /* We know that niov is small enough for that */
- cur_iov = alloca (niov * sizeof (struct iovec));
- memcpy (cur_iov, priv->out, niov * sizeof (struct iovec));
- for (i = 0; i < priv->outlen && remain > 0; i++) {
- /* Find out the first iov required */
- start = &cur_iov[i];
- if (start->iov_len <= remain) {
- remain -= start->iov_len;
- start = &cur_iov[i + 1];
- niov--;
- }
- else {
- start->iov_base = (void *)((char *)start->iov_base + remain);
- start->iov_len -= remain;
- remain = 0;
- }
- }
-
- memset (&msg, 0, sizeof (msg));
- msg.msg_iov = start;
- msg.msg_iovlen = MIN (IOV_MAX, niov);
- g_assert (niov > 0);
-#ifdef MSG_NOSIGNAL
- flags = MSG_NOSIGNAL;
-#endif
-
- if (priv->ssl) {
- r = rspamd_ssl_writev (priv->ssl, msg.msg_iov, msg.msg_iovlen);
- }
- else {
- r = sendmsg (conn->fd, &msg, flags);
- }
-
- if (r == -1) {
- if (!priv->ssl) {
- err = g_error_new (HTTP_ERROR, errno, "IO write error: %s", strerror (errno));
- rspamd_http_connection_ref (conn);
- conn->error_handler (conn, err);
- rspamd_http_connection_unref (conn);
- g_error_free (err);
- }
-
- return;
- }
- else {
- priv->wr_pos += r;
- }
-
- if (priv->wr_pos >= priv->wr_total) {
- goto call_finish_handler;
- }
- else {
- /* Want to write more */
- priv->flags &= ~RSPAMD_HTTP_CONN_FLAG_RESETED;
- event_add (&priv->ev, priv->ptv);
- }
-
- return;
-
-call_finish_handler:
- if ((conn->opts & RSPAMD_HTTP_CLIENT_SIMPLE) == 0) {
- rspamd_http_connection_ref (conn);
- conn->finished = TRUE;
- conn->finish_handler (conn, priv->msg);
- rspamd_http_connection_unref (conn);
- }
- else {
- /* Plan read message */
- rspamd_http_simple_client_helper (conn);
- }
-}
-
-static gssize
-rspamd_http_try_read (gint fd,
- struct rspamd_http_connection *conn,
- struct rspamd_http_connection_private *priv,
- struct _rspamd_http_privbuf *pbuf,
- const gchar **buf_ptr)
-{
- gssize r;
- gchar *data;
- gsize len;
- struct rspamd_http_message *msg;
-
- msg = priv->msg;
-
- if (pbuf->zc_buf == NULL) {
- data = priv->buf->data->str;
- len = priv->buf->data->allocated;
- }
- else {
- data = (gchar *)pbuf->zc_buf;
- len = pbuf->zc_remain;
-
- if (len == 0) {
- rspamd_http_message_grow_body (priv->msg, priv->buf->data->allocated);
- rspamd_http_switch_zc (pbuf, msg);
- data = (gchar *)pbuf->zc_buf;
- len = pbuf->zc_remain;
- }
- }
-
- if (priv->ssl) {
- r = rspamd_ssl_read (priv->ssl, data, len);
- }
- else {
- r = read (fd, data, len);
- }
-
- if (r <= 0) {
- return r;
- }
- else {
- if (pbuf->zc_buf == NULL) {
- priv->buf->data->len = r;
- }
- else {
- pbuf->zc_remain -= r;
- pbuf->zc_buf += r;
- }
- }
-
- if (buf_ptr) {
- *buf_ptr = data;
- }
-
- return r;
-}
-
-static void
-rspamd_http_ssl_err_handler (gpointer ud, GError *err)
-{
- struct rspamd_http_connection *conn = (struct rspamd_http_connection *)ud;
-
- rspamd_http_connection_ref (conn);
- conn->error_handler (conn, err);
- rspamd_http_connection_unref (conn);
-}
-
-static void
-rspamd_http_event_handler (int fd, short what, gpointer ud)
-{
- struct rspamd_http_connection *conn = (struct rspamd_http_connection *)ud;
- struct rspamd_http_connection_private *priv;
- struct _rspamd_http_privbuf *pbuf;
- const gchar *d;
- gssize r;
- GError *err;
-
- priv = conn->priv;
- pbuf = priv->buf;
- REF_RETAIN (pbuf);
- rspamd_http_connection_ref (conn);
-
- if (what == EV_READ) {
- r = rspamd_http_try_read (fd, conn, priv, pbuf, &d);
-
- if (r > 0) {
- if (http_parser_execute (&priv->parser, &priv->parser_cb,
- d, r) != (size_t)r || priv->parser.http_errno != 0) {
- if (priv->flags & RSPAMD_HTTP_CONN_FLAG_TOO_LARGE) {
- err = g_error_new (HTTP_ERROR, 413,
- "Request entity too large: %zu",
- (size_t)priv->parser.content_length);
- }
- else if (priv->flags & RSPAMD_HTTP_CONN_FLAG_ENCRYPTION_NEEDED) {
- err = g_error_new (HTTP_ERROR, 400,
- "Encryption required");
- }
- else {
- err = g_error_new (HTTP_ERROR, 500 + priv->parser.http_errno,
- "HTTP parser error: %s",
- http_errno_description (priv->parser.http_errno));
- }
-
- if (!conn->finished) {
- conn->error_handler (conn, err);
- }
- else {
- msg_err ("got error after HTTP request is finished: %e", err);
- }
-
- g_error_free (err);
-
- REF_RELEASE (pbuf);
- rspamd_http_connection_unref (conn);
-
- return;
- }
- }
- else if (r == 0) {
- /* We can still call http parser */
- http_parser_execute (&priv->parser, &priv->parser_cb, d, r);
-
- if (!conn->finished) {
- err = g_error_new (HTTP_ERROR,
- errno,
- "IO read error: unexpected EOF");
- conn->error_handler (conn, err);
- g_error_free (err);
- }
- REF_RELEASE (pbuf);
- rspamd_http_connection_unref (conn);
-
- return;
- }
- else {
- if (!priv->ssl) {
- err = g_error_new (HTTP_ERROR,
- errno,
- "IO read error: %s",
- strerror (errno));
- conn->error_handler (conn, err);
- g_error_free (err);
- }
-
- REF_RELEASE (pbuf);
- rspamd_http_connection_unref (conn);
-
- return;
- }
- }
- else if (what == EV_TIMEOUT) {
- /* Let's try to read from the socket first */
- r = rspamd_http_try_read (fd, conn, priv, pbuf, &d);
-
- if (r > 0) {
- if (http_parser_execute (&priv->parser, &priv->parser_cb,
- d, r) != (size_t)r || priv->parser.http_errno != 0) {
- err = g_error_new (HTTP_ERROR, priv->parser.http_errno,
- "HTTP parser error: %s",
- http_errno_description (priv->parser.http_errno));
-
- if (!conn->finished) {
- conn->error_handler (conn, err);
- }
- else {
- msg_err ("got error after HTTP request is finished: %e", err);
- }
-
- g_error_free (err);
-
- REF_RELEASE (pbuf);
- rspamd_http_connection_unref (conn);
-
- return;
- }
- }
- else if (r == 0) {
- if (!conn->finished) {
- err = g_error_new (HTTP_ERROR, ETIMEDOUT,
- "IO timeout");
- conn->error_handler (conn, err);
- g_error_free (err);
-
- }
- REF_RELEASE (pbuf);
- rspamd_http_connection_unref (conn);
-
- return;
- }
- else {
- err = g_error_new (HTTP_ERROR, ETIMEDOUT,
- "IO timeout");
- conn->error_handler (conn, err);
- g_error_free (err);
-
- REF_RELEASE (pbuf);
- rspamd_http_connection_unref (conn);
-
- return;
- }
- }
- else if (what == EV_WRITE) {
- rspamd_http_write_helper (conn);
- }
-
- REF_RELEASE (pbuf);
- rspamd_http_connection_unref (conn);
-}
-
-static void
-rspamd_http_parser_reset (struct rspamd_http_connection *conn)
-{
- struct rspamd_http_connection_private *priv = conn->priv;
-
- http_parser_init (&priv->parser,
- conn->type == RSPAMD_HTTP_SERVER ? HTTP_REQUEST : HTTP_RESPONSE);
-
- priv->parser_cb.on_url = rspamd_http_on_url;
- priv->parser_cb.on_status = rspamd_http_on_status;
- priv->parser_cb.on_header_field = rspamd_http_on_header_field;
- priv->parser_cb.on_header_value = rspamd_http_on_header_value;
- priv->parser_cb.on_headers_complete = rspamd_http_on_headers_complete;
- priv->parser_cb.on_body = rspamd_http_on_body;
- priv->parser_cb.on_message_complete = rspamd_http_on_message_complete;
-}
-
-struct rspamd_http_connection *
-rspamd_http_connection_new (
- rspamd_http_body_handler_t body_handler,
- rspamd_http_error_handler_t error_handler,
- rspamd_http_finish_handler_t finish_handler,
- unsigned opts,
- enum rspamd_http_connection_type type,
- struct rspamd_keypair_cache *cache,
- gpointer ssl_ctx)
-{
- struct rspamd_http_connection *conn;
- struct rspamd_http_connection_private *priv;
-
- if (error_handler == NULL || finish_handler == NULL) {
- return NULL;
- }
-
- conn = g_malloc0 (sizeof (struct rspamd_http_connection));
- conn->opts = opts;
- conn->type = type;
- conn->body_handler = body_handler;
- conn->error_handler = error_handler;
- conn->finish_handler = finish_handler;
- conn->fd = -1;
- conn->ref = 1;
- conn->finished = FALSE;
- conn->cache = cache;
-
- /* Init priv */
- priv = g_malloc0 (sizeof (struct rspamd_http_connection_private));
- conn->priv = priv;
- priv->ssl_ctx = ssl_ctx;
-
- rspamd_http_parser_reset (conn);
- priv->parser.data = conn;
-
- return conn;
-}
-
-void
-rspamd_http_connection_reset (struct rspamd_http_connection *conn)
-{
- struct rspamd_http_connection_private *priv;
- struct rspamd_http_message *msg;
-
- priv = conn->priv;
- msg = priv->msg;
-
- /* Clear request */
- if (msg != NULL) {
- if (msg->peer_key) {
- priv->peer_key = msg->peer_key;
- msg->peer_key = NULL;
- }
- rspamd_http_message_unref (msg);
- priv->msg = NULL;
- }
-
- conn->finished = FALSE;
- /* Clear priv */
-
- if (!(priv->flags & RSPAMD_HTTP_CONN_FLAG_RESETED)) {
-
- if (rspamd_event_pending (&priv->ev, EV_READ|EV_WRITE|EV_TIMEOUT)) {
- event_del (&priv->ev);
- }
-
- rspamd_http_parser_reset (conn);
- }
-
- if (priv->buf != NULL) {
- REF_RELEASE (priv->buf);
- priv->buf = NULL;
- }
-
- if (priv->out != NULL) {
- g_free (priv->out);
- priv->out = NULL;
- }
-
- priv->flags |= RSPAMD_HTTP_CONN_FLAG_RESETED;
-}
-
-struct rspamd_http_message *
-rspamd_http_connection_steal_msg (struct rspamd_http_connection *conn)
-{
- struct rspamd_http_connection_private *priv;
- struct rspamd_http_message *msg;
-
- priv = conn->priv;
- msg = priv->msg;
-
- /* Clear request */
- if (msg != NULL) {
- if (msg->peer_key) {
- priv->peer_key = msg->peer_key;
- msg->peer_key = NULL;
- }
- priv->msg = NULL;
- }
-
- return msg;
-}
-
-struct rspamd_http_message *
-rspamd_http_connection_copy_msg (struct rspamd_http_message *msg, GError **err)
-{
- struct rspamd_http_message *new_msg;
- struct rspamd_http_header *hdr, *nhdr, *nhdrs, *thdr, *hcur;
- const gchar *old_body;
- gsize old_len;
- struct stat st;
- union _rspamd_storage_u *storage;
-
- new_msg = rspamd_http_new_message (msg->type);
- new_msg->flags = msg->flags;
-
- if (msg->body_buf.len > 0) {
-
- if (msg->flags & RSPAMD_HTTP_FLAG_SHMEM) {
- /* Avoid copying by just maping a shared segment */
- new_msg->flags |= RSPAMD_HTTP_FLAG_SHMEM_IMMUTABLE;
-
- storage = &new_msg->body_buf.c;
- storage->shared.shm_fd = dup (msg->body_buf.c.shared.shm_fd);
-
- if (storage->shared.shm_fd == -1) {
- rspamd_http_message_unref (new_msg);
- g_set_error (err, http_error_quark (), errno,
- "cannot dup shmem fd: %d: %s",
- msg->body_buf.c.shared.shm_fd, strerror (errno));
-
- return NULL;
- }
-
- if (fstat (storage->shared.shm_fd, &st) == -1) {
- g_set_error (err, http_error_quark (), errno,
- "cannot stat shmem fd: %d: %s",
- storage->shared.shm_fd, strerror (errno));
- rspamd_http_message_unref (new_msg);
-
- return NULL;
- }
-
- /* We don't own segment, so do not try to touch it */
-
- if (msg->body_buf.c.shared.name) {
- storage->shared.name = msg->body_buf.c.shared.name;
- REF_RETAIN (storage->shared.name);
- }
-
- new_msg->body_buf.str = mmap (NULL, st.st_size,
- PROT_READ, MAP_SHARED,
- storage->shared.shm_fd, 0);
-
- if (new_msg->body_buf.str == MAP_FAILED) {
- g_set_error (err, http_error_quark (), errno,
- "cannot mmap shmem fd: %d: %s",
- storage->shared.shm_fd, strerror (errno));
- rspamd_http_message_unref (new_msg);
-
- return NULL;
- }
-
- new_msg->body_buf.begin = new_msg->body_buf.str;
- new_msg->body_buf.len = msg->body_buf.len;
- new_msg->body_buf.begin = new_msg->body_buf.str +
- (msg->body_buf.begin - msg->body_buf.str);
- }
- else {
- old_body = rspamd_http_message_get_body (msg, &old_len);
-
- if (!rspamd_http_message_set_body (new_msg, old_body, old_len)) {
- g_set_error (err, http_error_quark (), errno,
- "cannot set body for message, length: %zd",
- old_len);
- rspamd_http_message_unref (new_msg);
-
- return NULL;
- }
- }
- }
-
- if (msg->url) {
- if (new_msg->url) {
- new_msg->url = rspamd_fstring_append (new_msg->url, msg->url->str,
- msg->url->len);
- }
- else {
- new_msg->url = rspamd_fstring_new_init (msg->url->str,
- msg->url->len);
- }
- }
-
- if (msg->host) {
- new_msg->host = rspamd_fstring_new_init (msg->host->str,
- msg->host->len);
- }
-
- new_msg->method = msg->method;
- new_msg->port = msg->port;
- new_msg->date = msg->date;
- new_msg->last_modified = msg->last_modified;
-
- HASH_ITER (hh, msg->headers, hdr, thdr) {
- nhdrs = NULL;
-
- DL_FOREACH (hdr, hcur) {
- nhdr = g_malloc (sizeof (struct rspamd_http_header));
-
- nhdr->combined = rspamd_fstring_new_init (hcur->combined->str,
- hcur->combined->len);
- nhdr->name.begin = nhdr->combined->str +
- (hcur->name.begin - hcur->combined->str);
- nhdr->name.len = hcur->name.len;
- nhdr->value.begin = nhdr->combined->str +
- (hcur->value.begin - hcur->combined->str);
- nhdr->value.len = hcur->value.len;
- DL_APPEND (nhdrs, nhdr);
- }
-
- HASH_ADD_KEYPTR (hh, new_msg->headers, nhdrs->name.begin,
- nhdrs->name.len, nhdrs);
- }
-
- return new_msg;
-}
-
-void
-rspamd_http_connection_free (struct rspamd_http_connection *conn)
-{
- struct rspamd_http_connection_private *priv;
-
- priv = conn->priv;
-
- if (priv != NULL) {
- rspamd_http_connection_reset (conn);
-
- if (priv->ssl) {
- rspamd_ssl_connection_free (priv->ssl);
- priv->ssl = NULL;
- }
-
- if (priv->local_key) {
- rspamd_keypair_unref (priv->local_key);
- }
- if (priv->peer_key) {
- rspamd_pubkey_unref (priv->peer_key);
- }
-
- g_free (priv);
- }
-
- g_free (conn);
-}
-
-static void
-rspamd_http_connection_read_message_common (struct rspamd_http_connection *conn,
- gpointer ud, gint fd, struct timeval *timeout, struct event_base *base,
- gint flags)
-{
- struct rspamd_http_connection_private *priv = conn->priv;
- struct rspamd_http_message *req;
-
- conn->fd = fd;
- conn->ud = ud;
- req = rspamd_http_new_message (
- conn->type == RSPAMD_HTTP_SERVER ? HTTP_REQUEST : HTTP_RESPONSE);
- priv->msg = req;
- req->flags = flags;
-
- if (flags & RSPAMD_HTTP_FLAG_SHMEM) {
- req->body_buf.c.shared.shm_fd = -1;
- }
-
- if (priv->peer_key) {
- priv->msg->peer_key = priv->peer_key;
- priv->peer_key = NULL;
- priv->flags |= RSPAMD_HTTP_CONN_FLAG_ENCRYPTED;
- }
-
- if (timeout == NULL) {
- priv->ptv = NULL;
- }
- else if (&priv->tv != timeout) {
- memcpy (&priv->tv, timeout, sizeof (struct timeval));
- priv->ptv = &priv->tv;
- }
-
- priv->header = NULL;
- priv->buf = g_malloc0 (sizeof (*priv->buf));
- REF_INIT_RETAIN (priv->buf, rspamd_http_privbuf_dtor);
- priv->buf->data = rspamd_fstring_sized_new (8192);
- priv->flags |= RSPAMD_HTTP_CONN_FLAG_NEW_HEADER;
-
- event_set (&priv->ev,
- fd,
- EV_READ | EV_PERSIST,
- rspamd_http_event_handler,
- conn);
- if (base != NULL) {
- event_base_set (base, &priv->ev);
- }
-
- priv->flags &= ~RSPAMD_HTTP_CONN_FLAG_RESETED;
- event_add (&priv->ev, priv->ptv);
-}
-
-void
-rspamd_http_connection_read_message (struct rspamd_http_connection *conn,
- gpointer ud, gint fd, struct timeval *timeout, struct event_base *base)
-{
- rspamd_http_connection_read_message_common (conn, ud, fd, timeout, base, 0);
-}
-
-void
-rspamd_http_connection_read_message_shared (struct rspamd_http_connection *conn,
- gpointer ud, gint fd, struct timeval *timeout, struct event_base *base)
-{
- rspamd_http_connection_read_message_common (conn, ud, fd, timeout, base,
- RSPAMD_HTTP_FLAG_SHMEM);
-}
-
-static void
-rspamd_http_connection_encrypt_message (
- struct rspamd_http_connection *conn,
- struct rspamd_http_message *msg,
- struct rspamd_http_connection_private *priv,
- guchar *pbody,
- guint bodylen,
- guchar *pmethod,
- guint methodlen,
- guint preludelen,
- gint hdrcount,
- guchar *np,
- guchar *mp,
- struct rspamd_cryptobox_pubkey *peer_key)
-{
- struct rspamd_cryptobox_segment *segments;
- guchar *crlfp;
- const guchar *nm;
- gint i, cnt;
- guint outlen;
- struct rspamd_http_header *hdr, *htmp, *hcur;
- enum rspamd_cryptobox_mode mode;
-
- mode = rspamd_keypair_alg (priv->local_key);
- crlfp = mp + rspamd_cryptobox_mac_bytes (mode);
-
- outlen = priv->out[0].iov_len + priv->out[1].iov_len;
- /*
- * Create segments from the following:
- * Method, [URL], CRLF, nheaders, CRLF, body
- */
- segments = g_new (struct rspamd_cryptobox_segment, hdrcount + 5);
-
- segments[0].data = pmethod;
- segments[0].len = methodlen;
-
- if (conn->type != RSPAMD_HTTP_SERVER) {
- segments[1].data = msg->url->str;
- segments[1].len = msg->url->len;
- /* space + HTTP version + crlf */
- segments[2].data = crlfp;
- segments[2].len = preludelen - 2;
- crlfp += segments[2].len;
- i = 3;
- }
- else {
- /* Here we send just CRLF */
- segments[1].data = crlfp;
- segments[1].len = 2;
- crlfp += segments[1].len;
-
- i = 2;
- }
-
-
- HASH_ITER (hh, msg->headers, hdr, htmp) {
- DL_FOREACH (hdr, hcur) {
- segments[i].data = hcur->combined->str;
- segments[i++].len = hcur->combined->len;
- }
- }
-
- /* crlfp should point now at the second crlf */
- segments[i].data = crlfp;
- segments[i++].len = 2;
-
- if (pbody) {
- segments[i].data = pbody;
- segments[i++].len = bodylen;
- }
-
- cnt = i;
-
- if ((nm = rspamd_pubkey_get_nm (peer_key, priv->local_key)) == NULL) {
- nm = rspamd_pubkey_calculate_nm (peer_key, priv->local_key);
- }
-
- rspamd_cryptobox_encryptv_nm_inplace (segments, cnt, np, nm, mp, mode);
-
- /*
- * iov[0] = base HTTP request
- * iov[1] = CRLF
- * iov[2] = nonce
- * iov[3] = mac
- * iov[4..i] = encrypted HTTP request/reply
- */
- priv->out[2].iov_base = np;
- priv->out[2].iov_len = rspamd_cryptobox_nonce_bytes (mode);
- priv->out[3].iov_base = mp;
- priv->out[3].iov_len = rspamd_cryptobox_mac_bytes (mode);
-
- outlen += rspamd_cryptobox_nonce_bytes (mode) +
- rspamd_cryptobox_mac_bytes (mode);
-
- for (i = 0; i < cnt; i ++) {
- priv->out[i + 4].iov_base = segments[i].data;
- priv->out[i + 4].iov_len = segments[i].len;
- outlen += segments[i].len;
- }
-
- priv->wr_total = outlen;
-
- g_free (segments);
-}
-
-static void
-rspamd_http_detach_shared (struct rspamd_http_message *msg)
-{
- rspamd_fstring_t *cpy_str;
-
- cpy_str = rspamd_fstring_new_init (msg->body_buf.begin, msg->body_buf.len);
- rspamd_http_message_set_body_from_fstring_steal (msg, cpy_str);
-}
-
-gint
-rspamd_http_message_write_header (const gchar* mime_type, gboolean encrypted,
- gchar *repbuf, gsize replen, gsize bodylen, gsize enclen, const gchar* host,
- struct rspamd_http_connection* conn, struct rspamd_http_message* msg,
- rspamd_fstring_t** buf,
- struct rspamd_http_connection_private* priv,
- struct rspamd_cryptobox_pubkey* peer_key)
-{
- gchar datebuf[64];
- gint meth_len = 0;
- struct tm t;
-
- if (conn->type == RSPAMD_HTTP_SERVER) {
- /* Format reply */
- if (msg->method < HTTP_SYMBOLS) {
- rspamd_ftok_t status;
-
- rspamd_gmtime (msg->date, &t);
- rspamd_snprintf (datebuf, sizeof(datebuf),
- "%s, %02d %s %4d %02d:%02d:%02d GMT", http_week[t.tm_wday],
- t.tm_mday, http_month[t.tm_mon], t.tm_year + 1900,
- t.tm_hour, t.tm_min, t.tm_sec);
- if (mime_type == NULL) {
- mime_type =
- encrypted ? "application/octet-stream" : "text/plain";
- }
-
- if (msg->status == NULL || msg->status->len == 0) {
- if (msg->code == 200) {
- RSPAMD_FTOK_ASSIGN (&status, "OK");
- }
- else if (msg->code == 404) {
- RSPAMD_FTOK_ASSIGN (&status, "Not Found");
- }
- else if (msg->code == 403) {
- RSPAMD_FTOK_ASSIGN (&status, "Forbidden");
- }
- else if (msg->code >= 500 && msg->code < 600) {
- RSPAMD_FTOK_ASSIGN (&status, "Internal Server Error");
- }
- else {
- RSPAMD_FTOK_ASSIGN (&status, "Undefined Error");
- }
- }
- else {
- status.begin = msg->status->str;
- status.len = msg->status->len;
- }
-
- if (encrypted) {
- /* Internal reply (encrypted) */
- if (mime_type) {
- meth_len =
- rspamd_snprintf (repbuf, replen,
- "HTTP/1.1 %d %T\r\n"
- "Connection: close\r\n"
- "Server: %s\r\n"
- "Date: %s\r\n"
- "Content-Length: %z\r\n"
- "Content-Type: %s", /* NO \r\n at the end ! */
- msg->code, &status, "rspamd/" RVERSION,
- datebuf,
- bodylen, mime_type);
- }
- else {
- meth_len =
- rspamd_snprintf (repbuf, replen,
- "HTTP/1.1 %d %T\r\n"
- "Connection: close\r\n"
- "Server: %s\r\n"
- "Date: %s\r\n"
- "Content-Length: %z", /* NO \r\n at the end ! */
- msg->code, &status, "rspamd/" RVERSION,
- datebuf,
- bodylen);
- }
- enclen += meth_len;
- /* External reply */
- rspamd_printf_fstring (buf,
- "HTTP/1.1 200 OK\r\n"
- "Connection: close\r\n"
- "Server: rspamd\r\n"
- "Date: %s\r\n"
- "Content-Length: %z\r\n"
- "Content-Type: application/octet-stream\r\n",
- datebuf, enclen);
- }
- else {
- if (mime_type) {
- meth_len =
- rspamd_printf_fstring (buf,
- "HTTP/1.1 %d %T\r\n"
- "Connection: close\r\n"
- "Server: %s\r\n"
- "Date: %s\r\n"
- "Content-Length: %z\r\n"
- "Content-Type: %s\r\n",
- msg->code, &status, "rspamd/" RVERSION,
- datebuf,
- bodylen, mime_type);
- }
- else {
- meth_len =
- rspamd_printf_fstring (buf,
- "HTTP/1.1 %d %T\r\n"
- "Connection: close\r\n"
- "Server: %s\r\n"
- "Date: %s\r\n"
- "Content-Length: %z\r\n",
- msg->code, &status, "rspamd/" RVERSION,
- datebuf,
- bodylen);
- }
- }
- }
- else {
- /* Legacy spamd reply */
- if (msg->flags & RSPAMD_HTTP_FLAG_SPAMC) {
- gsize real_bodylen;
- goffset eoh_pos;
- GString tmp;
-
- /* Unfortunately, spamc protocol is deadly brain damaged */
- tmp.str = (gchar *)msg->body_buf.begin;
- tmp.len = msg->body_buf.len;
-
- if (rspamd_string_find_eoh (&tmp, &eoh_pos) != -1 &&
- bodylen > eoh_pos) {
- real_bodylen = bodylen - eoh_pos;
- }
- else {
- real_bodylen = bodylen;
- }
-
- rspamd_printf_fstring (buf, "SPAMD/1.1 0 EX_OK\r\n"
- "Content-length: %z\r\n",
- real_bodylen);
- }
- else {
- rspamd_printf_fstring (buf, "RSPAMD/1.3 0 EX_OK\r\n");
- }
- }
- }
- else {
- /* Format request */
- enclen += msg->url->len + strlen (http_method_str (msg->method)) + 1;
-
- if (host == NULL && msg->host == NULL) {
- /* Fallback to HTTP/1.0 */
- if (encrypted) {
- rspamd_printf_fstring (buf,
- "%s %s HTTP/1.0\r\n"
- "Content-Length: %z\r\n"
- "Content-Type: application/octet-stream\r\n",
- "POST",
- "/post", enclen);
- }
- else {
- rspamd_printf_fstring (buf,
- "%s %V HTTP/1.0\r\n"
- "Content-Length: %z\r\n",
- http_method_str (msg->method), msg->url, bodylen);
- if (bodylen > 0) {
- if (mime_type == NULL) {
- mime_type = "text/plain";
- }
-
- rspamd_printf_fstring (buf,
- "Content-Type: %s\r\n",
- mime_type);
- }
- }
- }
- else {
- if (encrypted) {
- if (host != NULL) {
- rspamd_printf_fstring (buf,
- "%s %s HTTP/1.1\r\n"
- "Connection: close\r\n"
- "Host: %s\r\n"
- "Content-Length: %z\r\n"
- "Content-Type: application/octet-stream\r\n",
- "POST", "/post", host, enclen);
- }
- else {
- rspamd_printf_fstring (buf,
- "%s %s HTTP/1.1\r\n"
- "Connection: close\r\n"
- "Host: %V\r\n"
- "Content-Length: %z\r\n"
- "Content-Type: application/octet-stream\r\n",
- "POST", "/post", msg->host, enclen);
- }
- }
- else {
- if (host != NULL) {
- rspamd_printf_fstring (buf,
- "%s %V HTTP/1.1\r\nConnection: close\r\n"
- "Host: %s\r\n"
- "Content-Length: %z\r\n",
- http_method_str (msg->method), msg->url, host,
- bodylen);
- }
- else {
- rspamd_printf_fstring (buf,
- "%s %V HTTP/1.1\r\n"
- "Connection: close\r\n"
- "Host: %V\r\n"
- "Content-Length: %z\r\n",
- http_method_str (msg->method), msg->url, msg->host,
- bodylen);
- }
-
- if (bodylen > 0) {
- if (mime_type != NULL) {
- rspamd_printf_fstring (buf,
- "Content-Type: %s\r\n",
- mime_type);
- }
- }
- }
- }
-
- if (encrypted) {
- GString *b32_key, *b32_id;
-
- b32_key = rspamd_keypair_print (priv->local_key,
- RSPAMD_KEYPAIR_PUBKEY | RSPAMD_KEYPAIR_BASE32);
- b32_id = rspamd_pubkey_print (peer_key,
- RSPAMD_KEYPAIR_ID_SHORT | RSPAMD_KEYPAIR_BASE32);
- /* XXX: add some fuzz here */
- rspamd_printf_fstring (&*buf, "Key: %v=%v\r\n", b32_id, b32_key);
- g_string_free (b32_key, TRUE);
- g_string_free (b32_id, TRUE);
- }
- }
-
- return meth_len;
-}
-
-static void
-rspamd_http_connection_write_message_common (struct rspamd_http_connection *conn,
- struct rspamd_http_message *msg, const gchar *host, const gchar *mime_type,
- gpointer ud, gint fd, struct timeval *timeout, struct event_base *base,
- gboolean allow_shared)
-{
- struct rspamd_http_connection_private *priv = conn->priv;
- struct rspamd_http_header *hdr, *htmp, *hcur;
- gchar repbuf[512], *pbody;
- gint i, hdrcount, meth_len = 0, preludelen = 0;
- gsize bodylen, enclen = 0;
- rspamd_fstring_t *buf;
- gboolean encrypted = FALSE;
- guchar nonce[rspamd_cryptobox_MAX_NONCEBYTES], mac[rspamd_cryptobox_MAX_MACBYTES];
- guchar *np = NULL, *mp = NULL, *meth_pos = NULL;
- struct rspamd_cryptobox_pubkey *peer_key = NULL;
- enum rspamd_cryptobox_mode mode;
- GError *err;
-
- conn->fd = fd;
- conn->ud = ud;
- priv->msg = msg;
-
- if (timeout == NULL) {
- priv->ptv = NULL;
- }
- else if (timeout != &priv->tv) {
- memcpy (&priv->tv, timeout, sizeof (struct timeval));
- priv->ptv = &priv->tv;
- }
-
- priv->header = NULL;
- priv->buf = g_malloc0 (sizeof (*priv->buf));
- REF_INIT_RETAIN (priv->buf, rspamd_http_privbuf_dtor);
- priv->buf->data = rspamd_fstring_sized_new (512);
- buf = priv->buf->data;
-
- if (priv->peer_key && priv->local_key) {
- priv->msg->peer_key = priv->peer_key;
- priv->peer_key = NULL;
- priv->flags |= RSPAMD_HTTP_CONN_FLAG_ENCRYPTED;
- }
-
- if (msg->peer_key != NULL) {
- if (priv->local_key == NULL) {
- /* Automatically generate a temporary keypair */
- priv->local_key = rspamd_keypair_new (RSPAMD_KEYPAIR_KEX,
- RSPAMD_CRYPTOBOX_MODE_25519);
- }
-
- encrypted = TRUE;
-
- if (conn->cache) {
- rspamd_keypair_cache_process (conn->cache,
- priv->local_key, priv->msg->peer_key);
- }
- }
-
- if (encrypted && (msg->flags &
- (RSPAMD_HTTP_FLAG_SHMEM_IMMUTABLE|RSPAMD_HTTP_FLAG_SHMEM))) {
- /* We cannot use immutable body to encrypt message in place */
- allow_shared = FALSE;
- rspamd_http_detach_shared (msg);
- }
-
- if (allow_shared) {
- gchar tmpbuf[64];
-
- if (!(msg->flags & RSPAMD_HTTP_FLAG_SHMEM) ||
- msg->body_buf.c.shared.name == NULL) {
- allow_shared = FALSE;
- }
- else {
- /* Insert new headers */
- rspamd_http_message_add_header (msg, "Shm",
- msg->body_buf.c.shared.name->shm_name);
- rspamd_snprintf (tmpbuf, sizeof (tmpbuf), "%d",
- (int)(msg->body_buf.begin - msg->body_buf.str));
- rspamd_http_message_add_header (msg, "Shm-Offset",
- tmpbuf);
- rspamd_snprintf (tmpbuf, sizeof (tmpbuf), "%z",
- msg->body_buf.len);
- rspamd_http_message_add_header (msg, "Shm-Length",
- tmpbuf);
- }
- }
-
- if (encrypted) {
- mode = rspamd_keypair_alg (priv->local_key);
-
- if (msg->body_buf.len == 0) {
- pbody = NULL;
- bodylen = 0;
- msg->method = HTTP_GET;
- }
- else {
- pbody = (gchar *)msg->body_buf.begin;
- bodylen = msg->body_buf.len;
- msg->method = HTTP_POST;
- }
-
- if (conn->type == RSPAMD_HTTP_SERVER) {
- /*
- * iov[0] = base reply
- * iov[1] = CRLF
- * iov[2] = nonce
- * iov[3] = mac
- * iov[4] = encrypted reply
- * iov[6] = encrypted crlf
- * iov[7..n] = encrypted headers
- * iov[n + 1] = encrypted crlf
- * [iov[n + 2] = encrypted body]
- */
- priv->outlen = 7;
- enclen = rspamd_cryptobox_nonce_bytes (mode) +
- rspamd_cryptobox_mac_bytes (mode) +
- 4 + /* 2 * CRLF */
- bodylen;
- }
- else {
- /*
- * iov[0] = base request
- * iov[1] = CRLF
- * iov[2] = nonce
- * iov[3] = mac
- * iov[4] = encrypted method + space
- * iov[5] = encrypted url
- * iov[7] = encrypted prelude
- * iov[8..n] = encrypted headers
- * iov[n + 1] = encrypted crlf
- * [iov[n + 2] = encrypted body]
- */
- priv->outlen = 8;
-
- if (bodylen > 0) {
- if (mime_type != NULL) {
- preludelen = rspamd_snprintf (repbuf, sizeof (repbuf), "%s\r\n"
- "Content-Length: %z\r\n"
- "Content-Type: %s\r\n"
- "\r\n", ENCRYPTED_VERSION, bodylen,
- mime_type);
- }
- else {
- preludelen = rspamd_snprintf (repbuf, sizeof (repbuf), "%s\r\n"
- "Content-Length: %z\r\n"
- ""
- "\r\n", ENCRYPTED_VERSION, bodylen);
- }
-
- preludelen = rspamd_snprintf (repbuf, sizeof (repbuf), "%s\r\n"
- "Content-Length: %z\r\n"
- "Content-Type: %s\r\n"
- "\r\n", ENCRYPTED_VERSION, bodylen,
- mime_type);
- }
- else {
- preludelen = rspamd_snprintf (repbuf, sizeof (repbuf),
- "%s\r\n\r\n",
- ENCRYPTED_VERSION);
- }
-
- enclen = rspamd_cryptobox_nonce_bytes (mode) +
- rspamd_cryptobox_mac_bytes (mode) +
- preludelen + /* version [content-length] + 2 * CRLF */
- bodylen;
- }
-
- if (bodylen > 0) {
- priv->outlen ++;
- }
- }
- else {
- if (msg->method < HTTP_SYMBOLS) {
- if (msg->body_buf.len == 0 || allow_shared) {
- pbody = NULL;
- bodylen = 0;
- priv->outlen = 2;
-
- if (msg->method == HTTP_INVALID) {
- msg->method = HTTP_GET;
- }
- }
- else {
- pbody = (gchar *)msg->body_buf.begin;
- bodylen = msg->body_buf.len;
- priv->outlen = 3;
-
- if (msg->method == HTTP_INVALID) {
- msg->method = HTTP_POST;
- }
- }
- }
- else if (msg->body_buf.len > 0) {
- allow_shared = FALSE;
- pbody = (gchar *)msg->body_buf.begin;
- bodylen = msg->body_buf.len;
- priv->outlen = 2;
- }
- else {
- /* Invalid body for spamc method */
- abort ();
- }
- }
-
- peer_key = msg->peer_key;
-
- priv->wr_total = bodylen + 2;
-
- hdrcount = 0;
-
- if (msg->method < HTTP_SYMBOLS) {
- HASH_ITER (hh, msg->headers, hdr, htmp) {
- DL_FOREACH (hdr, hcur) {
- /* <name: value\r\n> */
- priv->wr_total += hcur->combined->len;
- enclen += hcur->combined->len;
- priv->outlen ++;
- hdrcount ++;
- }
- }
- }
-
- /* Allocate iov */
- priv->out = g_malloc0 (sizeof (struct iovec) * priv->outlen);
- priv->wr_pos = 0;
-
- meth_len = rspamd_http_message_write_header (mime_type, encrypted,
- repbuf, sizeof (repbuf), bodylen, enclen,
- host, conn, msg,
- &buf, priv, peer_key);
- priv->wr_total += buf->len;
-
- /* Setup external request body */
- priv->out[0].iov_base = buf->str;
- priv->out[0].iov_len = buf->len;
-
- /* Buf will be used eventually for encryption */
- if (encrypted) {
- gint meth_offset, nonce_offset, mac_offset;
- mode = rspamd_keypair_alg (priv->local_key);
-
- ottery_rand_bytes (nonce, rspamd_cryptobox_nonce_bytes (mode));
- memset (mac, 0, rspamd_cryptobox_mac_bytes (mode));
- meth_offset = buf->len;
-
- if (conn->type == RSPAMD_HTTP_SERVER) {
- buf = rspamd_fstring_append (buf, repbuf, meth_len);
- }
- else {
- meth_len = strlen (http_method_str (msg->method)) + 1; /* + space */
- buf = rspamd_fstring_append (buf, http_method_str (msg->method),
- meth_len - 1);
- buf = rspamd_fstring_append (buf, " ", 1);
- }
-
- nonce_offset = buf->len;
- buf = rspamd_fstring_append (buf, nonce,
- rspamd_cryptobox_nonce_bytes (mode));
- mac_offset = buf->len;
- buf = rspamd_fstring_append (buf, mac,
- rspamd_cryptobox_mac_bytes (mode));
-
- /* Need to be encrypted */
- if (conn->type == RSPAMD_HTTP_SERVER) {
- buf = rspamd_fstring_append (buf, "\r\n\r\n", 4);
- }
- else {
- buf = rspamd_fstring_append (buf, repbuf, preludelen);
- }
-
- meth_pos = buf->str + meth_offset;
- np = buf->str + nonce_offset;
- mp = buf->str + mac_offset;
- }
-
- /* During previous writes, buf might be reallocated and changed */
- priv->buf->data = buf;
-
- if (encrypted) {
- /* Finish external HTTP request */
- priv->out[1].iov_base = "\r\n";
- priv->out[1].iov_len = 2;
- /* Encrypt the real request */
- rspamd_http_connection_encrypt_message (conn, msg, priv, pbody, bodylen,
- meth_pos, meth_len, preludelen, hdrcount, np, mp, peer_key);
- }
- else {
- i = 1;
- if (msg->method < HTTP_SYMBOLS) {
- HASH_ITER (hh, msg->headers, hdr, htmp) {
- DL_FOREACH (hdr, hcur) {
- priv->out[i].iov_base = hcur->combined->str;
- priv->out[i++].iov_len = hcur->combined->len;
- }
- }
-
- priv->out[i].iov_base = "\r\n";
- priv->out[i++].iov_len = 2;
- }
- else {
- /* No CRLF for compatibility reply */
- priv->wr_total -= 2;
- }
-
- if (pbody != NULL) {
- priv->out[i].iov_base = pbody;
- priv->out[i++].iov_len = bodylen;
- }
- }
-
- priv->flags &= ~RSPAMD_HTTP_CONN_FLAG_RESETED;
-
- if (rspamd_event_pending (&priv->ev, EV_TIMEOUT|EV_WRITE|EV_READ)) {
- event_del (&priv->ev);
- }
-
- if (msg->flags & RSPAMD_HTTP_FLAG_SSL) {
- if (base != NULL) {
- event_base_set (base, &priv->ev);
- }
- if (!priv->ssl_ctx) {
- err = g_error_new (HTTP_ERROR, errno, "ssl message requested "
- "with no ssl ctx");
- rspamd_http_connection_ref (conn);
- conn->error_handler (conn, err);
- rspamd_http_connection_unref (conn);
- g_error_free (err);
- return;
- }
- else {
- if (priv->ssl) {
- /* Cleanup the existing connection */
- rspamd_ssl_connection_free (priv->ssl);
- }
-
- priv->ssl = rspamd_ssl_connection_new (priv->ssl_ctx, base,
- !(msg->flags & RSPAMD_HTTP_FLAG_SSL_NOVERIFY));
- g_assert (priv->ssl != NULL);
-
- if (!rspamd_ssl_connect_fd (priv->ssl, fd, host, &priv->ev,
- priv->ptv, rspamd_http_event_handler,
- rspamd_http_ssl_err_handler, conn)) {
-
- err = g_error_new (HTTP_ERROR, errno,
- "ssl connection error: ssl error=%s, errno=%s",
- ERR_error_string (ERR_get_error (), NULL),
- strerror (errno));
- rspamd_http_connection_ref (conn);
- conn->error_handler (conn, err);
- rspamd_http_connection_unref (conn);
- g_error_free (err);
- return;
- }
- }
- }
- else {
- event_set (&priv->ev, fd, EV_WRITE, rspamd_http_event_handler, conn);
-
- if (base != NULL) {
- event_base_set (base, &priv->ev);
- }
-
- event_add (&priv->ev, priv->ptv);
- }
-}
-
-void
-rspamd_http_connection_write_message (struct rspamd_http_connection *conn,
- struct rspamd_http_message *msg, const gchar *host, const gchar *mime_type,
- gpointer ud, gint fd, struct timeval *timeout, struct event_base *base)
-{
- rspamd_http_connection_write_message_common (conn, msg, host, mime_type,
- ud, fd, timeout, base, FALSE);
-}
-
-void
-rspamd_http_connection_write_message_shared (struct rspamd_http_connection *conn,
- struct rspamd_http_message *msg, const gchar *host, const gchar *mime_type,
- gpointer ud, gint fd, struct timeval *timeout, struct event_base *base)
-{
- rspamd_http_connection_write_message_common (conn, msg, host, mime_type,
- ud, fd, timeout, base, TRUE);
-}
-
-struct rspamd_http_message *
-rspamd_http_new_message (enum http_parser_type type)
-{
- struct rspamd_http_message *new;
-
- new = g_malloc0 (sizeof (struct rspamd_http_message));
-
- if (type == HTTP_REQUEST) {
- new->url = rspamd_fstring_new ();
- }
- else {
- new->url = NULL;
- new->code = 200;
- }
-
- new->port = 80;
- new->type = type;
- new->method = HTTP_INVALID;
-
- REF_INIT_RETAIN (new, rspamd_http_message_free);
-
- return new;
-}
-
-struct rspamd_http_message*
-rspamd_http_message_from_url (const gchar *url)
-{
- struct http_parser_url pu;
- struct rspamd_http_message *msg;
- const gchar *host, *path;
- size_t pathlen, urllen;
- guint flags = 0;
-
- if (url == NULL) {
- return NULL;
- }
-
- urllen = strlen (url);
- memset (&pu, 0, sizeof (pu));
-
- if (http_parser_parse_url (url, urllen, FALSE, &pu) != 0) {
- msg_warn ("cannot parse URL: %s", url);
- return NULL;
- }
-
- if ((pu.field_set & (1 << UF_HOST)) == 0) {
- msg_warn ("no host argument in URL: %s", url);
- return NULL;
- }
-
- if ((pu.field_set & (1 << UF_SCHEMA))) {
- if (pu.field_data[UF_SCHEMA].len == sizeof ("https") - 1 &&
- memcmp (url + pu.field_data[UF_SCHEMA].off, "https", 5) == 0) {
- flags |= RSPAMD_HTTP_FLAG_SSL;
- }
- }
-
- if ((pu.field_set & (1 << UF_PATH)) == 0) {
- path = "/";
- pathlen = 1;
- }
- else {
- path = url + pu.field_data[UF_PATH].off;
- pathlen = urllen - pu.field_data[UF_PATH].off;
- }
-
- msg = rspamd_http_new_message (HTTP_REQUEST);
- host = url + pu.field_data[UF_HOST].off;
- msg->flags = flags;
-
- if ((pu.field_set & (1 << UF_PORT)) != 0) {
- msg->port = pu.port;
- }
- else {
- /* XXX: magic constant */
- if (flags & RSPAMD_HTTP_FLAG_SSL) {
- msg->port = 443;
- }
- else {
- msg->port = 80;
- }
- }
-
- msg->host = rspamd_fstring_new_init (host, pu.field_data[UF_HOST].len);
- msg->url = rspamd_fstring_append (msg->url, path, pathlen);
-
- REF_INIT_RETAIN (msg, rspamd_http_message_free);
-
- return msg;
-}
-
-const gchar *
-rspamd_http_message_get_body (struct rspamd_http_message *msg,
- gsize *blen)
-{
- const gchar *ret = NULL;
-
- if (msg->body_buf.len > 0) {
- ret = msg->body_buf.begin;
- }
-
- if (blen) {
- *blen = msg->body_buf.len;
- }
-
- return ret;
-}
-
-static void
-rspamd_http_shname_dtor (void *p)
-{
- struct rspamd_storage_shmem *n = p;
-
-#ifdef HAVE_SANE_SHMEM
- shm_unlink (n->shm_name);
-#else
- unlink (n->shm_name);
-#endif
- g_free (n->shm_name);
- g_free (n);
-}
-
-struct rspamd_storage_shmem *
-rspamd_http_message_shmem_ref (struct rspamd_http_message *msg)
-{
- if ((msg->flags & RSPAMD_HTTP_FLAG_SHMEM) && msg->body_buf.c.shared.name) {
- REF_RETAIN (msg->body_buf.c.shared.name);
- return msg->body_buf.c.shared.name;
- }
-
- return NULL;
-}
-
-guint
-rspamd_http_message_get_flags (struct rspamd_http_message *msg)
-{
- return msg->flags;
-}
-
-void
-rspamd_http_message_shmem_unref (struct rspamd_storage_shmem *p)
-{
- REF_RELEASE (p);
-}
-
-gboolean
-rspamd_http_message_set_body (struct rspamd_http_message *msg,
- const gchar *data, gsize len)
-{
- union _rspamd_storage_u *storage;
- storage = &msg->body_buf.c;
-
- rspamd_http_message_storage_cleanup (msg);
-
- if (msg->flags & RSPAMD_HTTP_FLAG_SHMEM) {
- storage->shared.name = g_malloc (sizeof (*storage->shared.name));
- REF_INIT_RETAIN (storage->shared.name, rspamd_http_shname_dtor);
-#ifdef HAVE_SANE_SHMEM
-#if defined(__DragonFly__)
- // DragonFly uses regular files for shm. User rspamd is not allowed to create
- // files in the root.
- storage->shared.name->shm_name = g_strdup ("/tmp/rhm.XXXXXXXXXXXXXXXXXXXX");
-#else
- storage->shared.name->shm_name = g_strdup ("/rhm.XXXXXXXXXXXXXXXXXXXX");
-#endif
- storage->shared.shm_fd = rspamd_shmem_mkstemp (storage->shared.name->shm_name);
-#else
- /* XXX: assume that tempdir is /tmp */
- storage->shared.name->shm_name = g_strdup ("/tmp/rhm.XXXXXXXXXXXXXXXXXXXX");
- storage->shared.shm_fd = mkstemp (storage->shared.name->shm_name);
-#endif
-
- if (storage->shared.shm_fd == -1) {
- return FALSE;
- }
-
- if (len != 0 && len != ULLONG_MAX) {
- if (ftruncate (storage->shared.shm_fd, len) == -1) {
- return FALSE;
- }
-
- msg->body_buf.str = mmap (NULL, len,
- PROT_WRITE|PROT_READ, MAP_SHARED,
- storage->shared.shm_fd, 0);
-
- if (msg->body_buf.str == MAP_FAILED) {
- return FALSE;
- }
-
- msg->body_buf.begin = msg->body_buf.str;
- msg->body_buf.allocated_len = len;
-
- if (data != NULL) {
- memcpy (msg->body_buf.str, data, len);
- msg->body_buf.len = len;
- }
- }
- else {
- msg->body_buf.len = 0;
- msg->body_buf.begin = NULL;
- msg->body_buf.str = NULL;
- msg->body_buf.allocated_len = 0;
- }
- }
- else {
- if (len != 0 && len != ULLONG_MAX) {
- if (data == NULL) {
- storage->normal = rspamd_fstring_sized_new (len);
- msg->body_buf.len = 0;
- }
- else {
- storage->normal = rspamd_fstring_new_init (data, len);
- msg->body_buf.len = len;
- }
- }
- else {
- storage->normal = rspamd_fstring_new ();
- }
-
- msg->body_buf.begin = storage->normal->str;
- msg->body_buf.str = storage->normal->str;
- msg->body_buf.allocated_len = storage->normal->allocated;
- }
-
- msg->flags |= RSPAMD_HTTP_FLAG_HAS_BODY;
-
- return TRUE;
-}
-
-void
-rspamd_http_message_set_method (struct rspamd_http_message *msg,
- const gchar *method)
-{
- gint i;
-
- /* Linear search: not very efficient method */
- for (i = 0; i < HTTP_METHOD_MAX; i ++) {
- if (g_ascii_strcasecmp (method, http_method_str (i)) == 0) {
- msg->method = i;
- }
- }
-}
-
-gboolean
-rspamd_http_message_set_body_from_fd (struct rspamd_http_message *msg,
- gint fd)
-{
- union _rspamd_storage_u *storage;
- struct stat st;
-
- rspamd_http_message_storage_cleanup (msg);
-
- storage = &msg->body_buf.c;
- msg->flags |= RSPAMD_HTTP_FLAG_SHMEM|RSPAMD_HTTP_FLAG_SHMEM_IMMUTABLE;
-
- storage->shared.shm_fd = dup (fd);
- msg->body_buf.str = MAP_FAILED;
-
- if (storage->shared.shm_fd == -1) {
- return FALSE;
- }
-
- if (fstat (storage->shared.shm_fd, &st) == -1) {
- return FALSE;
- }
-
- msg->body_buf.str = mmap (NULL, st.st_size,
- PROT_READ, MAP_SHARED,
- storage->shared.shm_fd, 0);
-
- if (msg->body_buf.str == MAP_FAILED) {
- return FALSE;
- }
-
- msg->body_buf.begin = msg->body_buf.str;
- msg->body_buf.len = st.st_size;
- msg->body_buf.allocated_len = st.st_size;
-
- return TRUE;
-}
-
-gboolean
-rspamd_http_message_set_body_from_fstring_steal (struct rspamd_http_message *msg,
- rspamd_fstring_t *fstr)
-{
- union _rspamd_storage_u *storage;
-
- rspamd_http_message_storage_cleanup (msg);
-
- storage = &msg->body_buf.c;
- msg->flags &= ~(RSPAMD_HTTP_FLAG_SHMEM|RSPAMD_HTTP_FLAG_SHMEM_IMMUTABLE);
-
- storage->normal = fstr;
- msg->body_buf.str = fstr->str;
- msg->body_buf.begin = msg->body_buf.str;
- msg->body_buf.len = fstr->len;
- msg->body_buf.allocated_len = fstr->allocated;
-
- return TRUE;
-}
-
-gboolean
-rspamd_http_message_set_body_from_fstring_copy (struct rspamd_http_message *msg,
- const rspamd_fstring_t *fstr)
-{
- union _rspamd_storage_u *storage;
-
- rspamd_http_message_storage_cleanup (msg);
-
- storage = &msg->body_buf.c;
- msg->flags &= ~(RSPAMD_HTTP_FLAG_SHMEM|RSPAMD_HTTP_FLAG_SHMEM_IMMUTABLE);
-
- storage->normal = rspamd_fstring_new_init (fstr->str, fstr->len);
- msg->body_buf.str = storage->normal->str;
- msg->body_buf.begin = msg->body_buf.str;
- msg->body_buf.len = storage->normal->len;
- msg->body_buf.allocated_len = storage->normal->allocated;
-
- return TRUE;
-}
-
-
-static gboolean
-rspamd_http_message_grow_body (struct rspamd_http_message *msg, gsize len)
-{
- struct stat st;
- union _rspamd_storage_u *storage;
- gsize newlen;
-
- storage = &msg->body_buf.c;
-
- if (msg->flags & RSPAMD_HTTP_FLAG_SHMEM) {
- if (storage->shared.shm_fd == -1) {
- return FALSE;
- }
-
- if (fstat (storage->shared.shm_fd, &st) == -1) {
- return FALSE;
- }
-
- /* Check if we need to grow */
- if ((gsize)st.st_size < msg->body_buf.len + len) {
- /* Need to grow */
- newlen = rspamd_fstring_suggest_size (msg->body_buf.len, st.st_size,
- len);
- /* Unmap as we need another size of segment */
- if (msg->body_buf.str != MAP_FAILED) {
- munmap (msg->body_buf.str, st.st_size);
- }
-
- if (ftruncate (storage->shared.shm_fd, newlen) == -1) {
- return FALSE;
- }
-
- msg->body_buf.str = mmap (NULL, newlen,
- PROT_WRITE|PROT_READ, MAP_SHARED,
- storage->shared.shm_fd, 0);
- if (msg->body_buf.str == MAP_FAILED) {
- return FALSE;
- }
-
- msg->body_buf.begin = msg->body_buf.str;
- msg->body_buf.allocated_len = newlen;
- }
- }
- else {
- storage->normal = rspamd_fstring_grow (storage->normal, len);
-
- /* Append might cause realloc */
- msg->body_buf.begin = storage->normal->str;
- msg->body_buf.len = storage->normal->len;
- msg->body_buf.str = storage->normal->str;
- msg->body_buf.allocated_len = storage->normal->allocated;
- }
-
- return TRUE;
-}
-
-gboolean
-rspamd_http_message_append_body (struct rspamd_http_message *msg,
- const gchar *data, gsize len)
-{
- union _rspamd_storage_u *storage;
-
- storage = &msg->body_buf.c;
-
- if (msg->flags & RSPAMD_HTTP_FLAG_SHMEM) {
- if (!rspamd_http_message_grow_body (msg, len)) {
- return FALSE;
- }
-
- memcpy (msg->body_buf.str + msg->body_buf.len, data, len);
- msg->body_buf.len += len;
- }
- else {
- storage->normal = rspamd_fstring_append (storage->normal, data, len);
-
- /* Append might cause realloc */
- msg->body_buf.begin = storage->normal->str;
- msg->body_buf.len = storage->normal->len;
- msg->body_buf.str = storage->normal->str;
- msg->body_buf.allocated_len = storage->normal->allocated;
- }
-
- return TRUE;
-}
-
-static void
-rspamd_http_message_storage_cleanup (struct rspamd_http_message *msg)
-{
- union _rspamd_storage_u *storage;
- struct stat st;
-
- if (msg->flags & RSPAMD_HTTP_FLAG_SHMEM) {
- storage = &msg->body_buf.c;
-
- if (storage->shared.shm_fd > 0) {
- g_assert (fstat (storage->shared.shm_fd, &st) != -1);
-
- if (msg->body_buf.str != MAP_FAILED) {
- munmap (msg->body_buf.str, st.st_size);
- }
-
- close (storage->shared.shm_fd);
- }
-
- if (storage->shared.name != NULL) {
- REF_RELEASE (storage->shared.name);
- }
-
- storage->shared.shm_fd = -1;
- msg->body_buf.str = MAP_FAILED;
- }
- else {
- if (msg->body_buf.c.normal) {
- rspamd_fstring_free (msg->body_buf.c.normal);
- }
-
- msg->body_buf.c.normal = NULL;
- }
-
- msg->body_buf.len = 0;
-}
-
-void
-rspamd_http_connection_set_max_size (struct rspamd_http_connection *conn,
- gsize sz)
-{
- conn->max_size = sz;
-}
-
-void
-rspamd_http_message_free (struct rspamd_http_message *msg)
-{
- struct rspamd_http_header *hdr, *htmp, *hcur, *hcurtmp;
-
-
- HASH_ITER (hh, msg->headers, hdr, htmp) {
- HASH_DEL (msg->headers, hdr);
-
- DL_FOREACH_SAFE (hdr, hcur, hcurtmp) {
- rspamd_fstring_free (hcur->combined);
- g_free (hcur);
- }
- }
-
-
- rspamd_http_message_storage_cleanup (msg);
-
- if (msg->url != NULL) {
- rspamd_fstring_free (msg->url);
- }
- if (msg->status != NULL) {
- rspamd_fstring_free (msg->status);
- }
- if (msg->host != NULL) {
- rspamd_fstring_free (msg->host);
- }
- if (msg->peer_key != NULL) {
- rspamd_pubkey_unref (msg->peer_key);
- }
-
- g_free (msg);
-}
-
-void
-rspamd_http_message_set_peer_key (struct rspamd_http_message *msg,
- struct rspamd_cryptobox_pubkey *pk)
-{
- if (msg->peer_key != NULL) {
- rspamd_pubkey_unref (msg->peer_key);
- }
-
- if (pk) {
- msg->peer_key = rspamd_pubkey_ref (pk);
- }
- else {
- msg->peer_key = NULL;
- }
-}
-
-void
-rspamd_http_message_add_header_len (struct rspamd_http_message *msg,
- const gchar *name,
- const gchar *value,
- gsize len)
-{
- struct rspamd_http_header *hdr, *found = NULL;
- guint nlen, vlen;
-
- if (msg != NULL && name != NULL && value != NULL) {
- hdr = g_malloc0 (sizeof (struct rspamd_http_header));
- nlen = strlen (name);
- vlen = len;
- hdr->combined = rspamd_fstring_sized_new (nlen + vlen + 4);
- rspamd_printf_fstring (&hdr->combined, "%s: %*s\r\n", name, (gint)vlen,
- value);
- hdr->name.begin = hdr->combined->str;
- hdr->name.len = nlen;
- hdr->value.begin = hdr->combined->str + nlen + 2;
- hdr->value.len = vlen;
-
- HASH_FIND (hh, msg->headers, hdr->name.begin,
- hdr->name.len, found);
-
- if (found == NULL) {
- HASH_ADD_KEYPTR (hh, msg->headers, hdr->name.begin,
- hdr->name.len, hdr);
- }
-
- DL_APPEND (found, hdr);
- }
-}
-
-void
-rspamd_http_message_add_header (struct rspamd_http_message *msg,
- const gchar *name,
- const gchar *value)
-{
- if (value) {
- rspamd_http_message_add_header_len (msg, name, value, strlen (value));
- }
-}
-
-void
-rspamd_http_message_add_header_fstr (struct rspamd_http_message *msg,
- const gchar *name,
- rspamd_fstring_t *value)
-{
- struct rspamd_http_header *hdr, *found = NULL;
- guint nlen, vlen;
-
- if (msg != NULL && name != NULL && value != NULL) {
- hdr = g_malloc0 (sizeof (struct rspamd_http_header));
- nlen = strlen (name);
- vlen = value->len;
- hdr->combined = rspamd_fstring_sized_new (nlen + vlen + 4);
- rspamd_printf_fstring (&hdr->combined, "%s: %V\r\n", name, value);
- hdr->name.begin = hdr->combined->str;
- hdr->name.len = nlen;
- hdr->value.begin = hdr->combined->str + nlen + 2;
- hdr->value.len = vlen;
-
- HASH_FIND (hh, msg->headers, hdr->name.begin,
- hdr->name.len, found);
-
- if (found == NULL) {
- HASH_ADD_KEYPTR (hh, msg->headers, hdr->name.begin,
- hdr->name.len, hdr);
- }
-
- DL_APPEND (found, hdr);
- }
-}
-
-const rspamd_ftok_t *
-rspamd_http_message_find_header (struct rspamd_http_message *msg,
- const gchar *name)
-{
- struct rspamd_http_header *hdr;
- const rspamd_ftok_t *res = NULL;
- guint slen = strlen (name);
-
- if (msg != NULL) {
- HASH_FIND (hh, msg->headers, name, slen, hdr);
-
- if (hdr) {
- res = &hdr->value;
- }
- }
-
- return res;
-}
-
-GPtrArray*
-rspamd_http_message_find_header_multiple (
- struct rspamd_http_message *msg,
- const gchar *name)
-{
- GPtrArray *res = NULL;
- struct rspamd_http_header *hdr, *cur;
-
- guint slen = strlen (name);
-
- if (msg != NULL) {
- HASH_FIND (hh, msg->headers, name, slen, hdr);
-
- if (hdr) {
- res = g_ptr_array_sized_new (4);
-
- LL_FOREACH (hdr, cur) {
- g_ptr_array_add (res, &cur->value);
- }
- }
- }
-
-
- return res;
-}
-
-
-gboolean
-rspamd_http_message_remove_header (struct rspamd_http_message *msg,
- const gchar *name)
-{
- struct rspamd_http_header *hdr, *hcur, *hcurtmp;
- gboolean res = FALSE;
- guint slen = strlen (name);
-
- if (msg != NULL) {
- HASH_FIND (hh, msg->headers, name, slen, hdr);
-
- if (hdr) {
- HASH_DEL (msg->headers, hdr);
- res = TRUE;
-
- DL_FOREACH_SAFE (hdr, hcur, hcurtmp) {
- rspamd_fstring_free (hcur->combined);
- g_free (hcur);
- }
- }
- }
-
- return res;
-}
-
-/*
- * HTTP router functions
- */
-
-static void
-rspamd_http_entry_free (struct rspamd_http_connection_entry *entry)
-{
- if (entry != NULL) {
- close (entry->conn->fd);
- rspamd_http_connection_unref (entry->conn);
- if (entry->rt->finish_handler) {
- entry->rt->finish_handler (entry);
- }
-
- DL_DELETE (entry->rt->conns, entry);
- g_free (entry);
- }
-}
-
-static void
-rspamd_http_router_error_handler (struct rspamd_http_connection *conn,
- GError *err)
-{
- struct rspamd_http_connection_entry *entry = conn->ud;
- struct rspamd_http_message *msg;
-
- if (entry->is_reply) {
- /* At this point we need to finish this session and close owned socket */
- if (entry->rt->error_handler != NULL) {
- entry->rt->error_handler (entry, err);
- }
- rspamd_http_entry_free (entry);
- }
- else {
- /* Here we can write a reply to a client */
- if (entry->rt->error_handler != NULL) {
- entry->rt->error_handler (entry, err);
- }
- msg = rspamd_http_new_message (HTTP_RESPONSE);
- msg->date = time (NULL);
- msg->code = err->code;
- rspamd_http_message_set_body (msg, err->message, strlen (err->message));
- rspamd_http_connection_reset (entry->conn);
- rspamd_http_connection_write_message (entry->conn,
- msg,
- NULL,
- "text/plain",
- entry,
- entry->conn->fd,
- entry->rt->ptv,
- entry->rt->ev_base);
- entry->is_reply = TRUE;
- }
-}
-
-static const gchar *
-rspamd_http_router_detect_ct (const gchar *path)
-{
- const gchar *dot;
- guint i;
-
- dot = strrchr (path, '.');
- if (dot == NULL) {
- return http_file_types[HTTP_MAGIC_PLAIN].ct;
- }
- dot++;
-
- for (i = 0; i < G_N_ELEMENTS (http_file_types); i++) {
- if (strcmp (http_file_types[i].ext, dot) == 0) {
- return http_file_types[i].ct;
- }
- }
-
- return http_file_types[HTTP_MAGIC_PLAIN].ct;
-}
-
-static gboolean
-rspamd_http_router_is_subdir (const gchar *parent, const gchar *sub)
-{
- if (parent == NULL || sub == NULL || *parent == '\0') {
- return FALSE;
- }
-
- while (*parent != '\0') {
- if (*sub != *parent) {
- return FALSE;
- }
- parent++;
- sub++;
- }
-
- parent--;
- if (*parent == G_DIR_SEPARATOR) {
- return TRUE;
- }
-
- return (*sub == G_DIR_SEPARATOR || *sub == '\0');
-}
-
-static gboolean
-rspamd_http_router_try_file (struct rspamd_http_connection_entry *entry,
- rspamd_ftok_t *lookup, gboolean expand_path)
-{
- struct stat st;
- gint fd;
- gchar filebuf[PATH_MAX], realbuf[PATH_MAX], *dir;
- struct rspamd_http_message *reply_msg;
-
- rspamd_snprintf (filebuf, sizeof (filebuf), "%s%c%T",
- entry->rt->default_fs_path, G_DIR_SEPARATOR, lookup);
-
- if (realpath (filebuf, realbuf) == NULL ||
- lstat (realbuf, &st) == -1) {
- return FALSE;
- }
-
- if (S_ISDIR (st.st_mode) && expand_path) {
- /* Try to append 'index.html' to the url */
- rspamd_fstring_t *nlookup;
- rspamd_ftok_t tok;
- gboolean ret;
-
- nlookup = rspamd_fstring_sized_new (lookup->len + sizeof ("index.html"));
- rspamd_printf_fstring (&nlookup, "%T%c%s", lookup, G_DIR_SEPARATOR,
- "index.html");
- tok.begin = nlookup->str;
- tok.len = nlookup->len;
- ret = rspamd_http_router_try_file (entry, &tok, FALSE);
- rspamd_fstring_free (nlookup);
-
- return ret;
- }
- else if (!S_ISREG (st.st_mode)) {
- return FALSE;
- }
-
- /* We also need to ensure that file is inside the defined dir */
- rspamd_strlcpy (filebuf, realbuf, sizeof (filebuf));
- dir = dirname (filebuf);
-
- if (dir == NULL ||
- !rspamd_http_router_is_subdir (entry->rt->default_fs_path,
- dir)) {
- return FALSE;
- }
-
- fd = open (realbuf, O_RDONLY);
- if (fd == -1) {
- return FALSE;
- }
-
- reply_msg = rspamd_http_new_message (HTTP_RESPONSE);
- reply_msg->date = time (NULL);
- reply_msg->code = 200;
- rspamd_http_router_insert_headers (entry->rt, reply_msg);
-
- if (!rspamd_http_message_set_body_from_fd (reply_msg, fd)) {
- close (fd);
- return FALSE;
- }
-
- close (fd);
-
- rspamd_http_connection_reset (entry->conn);
-
- msg_debug ("requested file %s", realbuf);
- rspamd_http_connection_write_message (entry->conn, reply_msg, NULL,
- rspamd_http_router_detect_ct (realbuf), entry, entry->conn->fd,
- entry->rt->ptv, entry->rt->ev_base);
-
- return TRUE;
-}
-
-static void
-rspamd_http_router_send_error (GError *err,
- struct rspamd_http_connection_entry *entry)
-{
- struct rspamd_http_message *err_msg;
-
- err_msg = rspamd_http_new_message (HTTP_RESPONSE);
- err_msg->date = time (NULL);
- err_msg->code = err->code;
- rspamd_http_message_set_body (err_msg, err->message,
- strlen (err->message));
- entry->is_reply = TRUE;
- err_msg->status = rspamd_fstring_new_init (err->message, strlen (err->message));
- rspamd_http_router_insert_headers (entry->rt, err_msg);
- rspamd_http_connection_reset (entry->conn);
- rspamd_http_connection_write_message (entry->conn,
- err_msg,
- NULL,
- "text/plain",
- entry,
- entry->conn->fd,
- entry->rt->ptv,
- entry->rt->ev_base);
-}
-
-
-static int
-rspamd_http_router_finish_handler (struct rspamd_http_connection *conn,
- struct rspamd_http_message *msg)
-{
- struct rspamd_http_connection_entry *entry = conn->ud;
- rspamd_http_router_handler_t handler = NULL;
- gpointer found;
-
- GError *err;
- rspamd_ftok_t lookup;
- const rspamd_ftok_t *encoding;
- struct http_parser_url u;
- guint i;
- rspamd_regexp_t *re;
- struct rspamd_http_connection_router *router;
-
- G_STATIC_ASSERT (sizeof (rspamd_http_router_handler_t) ==
- sizeof (gpointer));
-
- memset (&lookup, 0, sizeof (lookup));
- router = entry->rt;
-
- if (entry->is_reply) {
- /* Request is finished, it is safe to free a connection */
- rspamd_http_entry_free (entry);
- }
- else {
- if (G_UNLIKELY (msg->method != HTTP_GET && msg->method != HTTP_POST)) {
- if (router->unknown_method_handler) {
- return router->unknown_method_handler (entry, msg);
- }
- else {
- err = g_error_new (HTTP_ERROR, 500,
- "Invalid method");
- if (entry->rt->error_handler != NULL) {
- entry->rt->error_handler (entry, err);
- }
-
- rspamd_http_router_send_error (err, entry);
- g_error_free (err);
-
- return 0;
- }
- }
-
- /* Search for path */
- if (msg->url != NULL && msg->url->len != 0) {
-
- http_parser_parse_url (msg->url->str, msg->url->len, TRUE, &u);
-
- if (u.field_set & (1 << UF_PATH)) {
- guint unnorm_len;
- lookup.begin = msg->url->str + u.field_data[UF_PATH].off;
- lookup.len = u.field_data[UF_PATH].len;
-
- rspamd_http_normalize_path_inplace ((gchar *)lookup.begin,
- lookup.len,
- &unnorm_len);
- lookup.len = unnorm_len;
- }
- else {
- lookup.begin = msg->url->str;
- lookup.len = msg->url->len;
- }
-
- found = g_hash_table_lookup (entry->rt->paths, &lookup);
- memcpy (&handler, &found, sizeof (found));
- msg_debug ("requested known path: %T", &lookup);
- }
- else {
- err = g_error_new (HTTP_ERROR, 404,
- "Empty path requested");
- if (entry->rt->error_handler != NULL) {
- entry->rt->error_handler (entry, err);
- }
-
- rspamd_http_router_send_error (err, entry);
- g_error_free (err);
-
- return 0;
- }
-
- entry->is_reply = TRUE;
-
- encoding = rspamd_http_message_find_header (msg, "Accept-Encoding");
-
- if (encoding && rspamd_substring_search (encoding->begin, encoding->len,
- "gzip", 4) != -1) {
- entry->support_gzip = TRUE;
- }
-
- if (handler != NULL) {
- return handler (entry, msg);
- }
- else {
- /* Try regexps */
- for (i = 0; i < router->regexps->len; i ++) {
- re = g_ptr_array_index (router->regexps, i);
- if (rspamd_regexp_match (re, lookup.begin, lookup.len,
- TRUE)) {
- found = rspamd_regexp_get_ud (re);
- memcpy (&handler, &found, sizeof (found));
-
- return handler (entry, msg);
- }
- }
-
- /* Now try plain file */
- if (entry->rt->default_fs_path == NULL || lookup.len == 0 ||
- !rspamd_http_router_try_file (entry, &lookup, TRUE)) {
-
- err = g_error_new (HTTP_ERROR, 404,
- "Not found");
- if (entry->rt->error_handler != NULL) {
- entry->rt->error_handler (entry, err);
- }
-
- msg_info ("path: %T not found", &lookup);
- rspamd_http_router_send_error (err, entry);
- g_error_free (err);
- }
- }
- }
-
- return 0;
-}
-
-struct rspamd_http_connection_router *
-rspamd_http_router_new (rspamd_http_router_error_handler_t eh,
- rspamd_http_router_finish_handler_t fh,
- struct timeval *timeout, struct event_base *base,
- const char *default_fs_path,
- struct rspamd_keypair_cache *cache)
-{
- struct rspamd_http_connection_router * new;
- struct stat st;
-
- new = g_malloc0 (sizeof (struct rspamd_http_connection_router));
- new->paths = g_hash_table_new_full (rspamd_ftok_icase_hash,
- rspamd_ftok_icase_equal, rspamd_fstring_mapped_ftok_free, NULL);
- new->regexps = g_ptr_array_new ();
- new->conns = NULL;
- new->error_handler = eh;
- new->finish_handler = fh;
- new->ev_base = base;
- new->response_headers = g_hash_table_new_full (rspamd_strcase_hash,
- rspamd_strcase_equal, g_free, g_free);
-
- if (timeout) {
- new->tv = *timeout;
- new->ptv = &new->tv;
- }
- else {
- new->ptv = NULL;
- }
-
- new->default_fs_path = NULL;
-
- if (default_fs_path != NULL) {
- if (stat (default_fs_path, &st) == -1) {
- msg_err ("cannot stat %s", default_fs_path);
- }
- else {
- if (!S_ISDIR (st.st_mode)) {
- msg_err ("path %s is not a directory", default_fs_path);
- }
- else {
- new->default_fs_path = realpath (default_fs_path, NULL);
- }
- }
- }
-
- new->cache = cache;
-
- return new;
-}
-
-void
-rspamd_http_router_set_key (struct rspamd_http_connection_router *router,
- struct rspamd_cryptobox_keypair *key)
-{
- g_assert (key != NULL);
-
- router->key = rspamd_keypair_ref (key);
-}
-
-void
-rspamd_http_router_add_path (struct rspamd_http_connection_router *router,
- const gchar *path, rspamd_http_router_handler_t handler)
-{
- gpointer ptr;
- rspamd_ftok_t *key;
- rspamd_fstring_t *storage;
- G_STATIC_ASSERT (sizeof (rspamd_http_router_handler_t) ==
- sizeof (gpointer));
-
- if (path != NULL && handler != NULL && router != NULL) {
- memcpy (&ptr, &handler, sizeof (ptr));
- storage = rspamd_fstring_new_init (path, strlen (path));
- key = g_malloc0 (sizeof (*key));
- key->begin = storage->str;
- key->len = storage->len;
- g_hash_table_insert (router->paths, key, ptr);
- }
-}
-
-void
-rspamd_http_router_set_unknown_handler (struct rspamd_http_connection_router *router,
- rspamd_http_router_handler_t handler)
-{
- if (router != NULL) {
- router->unknown_method_handler = handler;
- }
-}
-
-void
-rspamd_http_router_add_header (struct rspamd_http_connection_router *router,
- const gchar *name, const gchar *value)
-{
- if (name != NULL && value != NULL && router != NULL) {
- g_hash_table_replace (router->response_headers, g_strdup (name),
- g_strdup (value));
- }
-}
-
-void
-rspamd_http_router_insert_headers (struct rspamd_http_connection_router *router,
- struct rspamd_http_message *msg)
-{
- GHashTableIter it;
- gpointer k, v;
-
- if (router && msg) {
- g_hash_table_iter_init (&it, router->response_headers);
-
- while (g_hash_table_iter_next (&it, &k, &v)) {
- rspamd_http_message_add_header (msg, k, v);
- }
- }
-}
-
-void
-rspamd_http_router_add_regexp (struct rspamd_http_connection_router *router,
- struct rspamd_regexp_s *re, rspamd_http_router_handler_t handler)
-{
- gpointer ptr;
- G_STATIC_ASSERT (sizeof (rspamd_http_router_handler_t) ==
- sizeof (gpointer));
-
- if (re != NULL && handler != NULL && router != NULL) {
- memcpy (&ptr, &handler, sizeof (ptr));
- rspamd_regexp_set_ud (re, ptr);
- g_ptr_array_add (router->regexps, rspamd_regexp_ref (re));
- }
-}
-
-void
-rspamd_http_router_handle_socket (struct rspamd_http_connection_router *router,
- gint fd, gpointer ud)
-{
- struct rspamd_http_connection_entry *conn;
-
- conn = g_malloc0 (sizeof (struct rspamd_http_connection_entry));
- conn->rt = router;
- conn->ud = ud;
- conn->is_reply = FALSE;
-
- conn->conn = rspamd_http_connection_new (NULL,
- rspamd_http_router_error_handler,
- rspamd_http_router_finish_handler,
- 0,
- RSPAMD_HTTP_SERVER,
- router->cache,
- NULL);
-
- if (router->key) {
- rspamd_http_connection_set_key (conn->conn, router->key);
- }
-
- rspamd_http_connection_read_message (conn->conn, conn, fd, router->ptv,
- router->ev_base);
- DL_PREPEND (router->conns, conn);
-}
-
-void
-rspamd_http_router_free (struct rspamd_http_connection_router *router)
-{
- struct rspamd_http_connection_entry *conn, *tmp;
- rspamd_regexp_t *re;
- guint i;
-
- if (router) {
- DL_FOREACH_SAFE (router->conns, conn, tmp) {
- rspamd_http_entry_free (conn);
- }
-
- if (router->key) {
- rspamd_keypair_unref (router->key);
- }
-
- if (router->cache) {
- rspamd_keypair_cache_destroy (router->cache);
- }
-
- if (router->default_fs_path != NULL) {
- g_free (router->default_fs_path);
- }
-
- for (i = 0; i < router->regexps->len; i ++) {
- re = g_ptr_array_index (router->regexps, i);
- rspamd_regexp_unref (re);
- }
-
- g_ptr_array_free (router->regexps, TRUE);
- g_hash_table_unref (router->paths);
- g_hash_table_unref (router->response_headers);
- g_free (router);
- }
-}
-
-void
-rspamd_http_connection_set_key (struct rspamd_http_connection *conn,
- struct rspamd_cryptobox_keypair *key)
-{
- struct rspamd_http_connection_private *priv = conn->priv;
-
- g_assert (key != NULL);
- priv->local_key = rspamd_keypair_ref (key);
-}
-
-const struct rspamd_cryptobox_pubkey*
-rspamd_http_connection_get_peer_key (struct rspamd_http_connection *conn)
-{
- struct rspamd_http_connection_private *priv = conn->priv;
-
- if (priv->peer_key) {
- return priv->peer_key;
- }
- else if (priv->msg) {
- return priv->msg->peer_key;
- }
-
- return NULL;
-}
-
-gboolean
-rspamd_http_connection_is_encrypted (struct rspamd_http_connection *conn)
-{
- struct rspamd_http_connection_private *priv = conn->priv;
-
- if (priv->peer_key != NULL) {
- return TRUE;
- }
- else if (priv->msg) {
- return priv->msg->peer_key != NULL;
- }
-
- return FALSE;
-}
-
-GHashTable *
-rspamd_http_message_parse_query (struct rspamd_http_message *msg)
-{
- GHashTable *res;
- rspamd_fstring_t *key = NULL, *value = NULL;
- rspamd_ftok_t *key_tok = NULL, *value_tok = NULL;
- const gchar *p, *c, *end;
- struct http_parser_url u;
- enum {
- parse_key,
- parse_eqsign,
- parse_value,
- parse_ampersand
- } state = parse_key;
-
- res = g_hash_table_new_full (rspamd_ftok_icase_hash,
- rspamd_ftok_icase_equal,
- rspamd_fstring_mapped_ftok_free,
- rspamd_fstring_mapped_ftok_free);
-
- if (msg->url && msg->url->len > 0) {
- http_parser_parse_url (msg->url->str, msg->url->len, TRUE, &u);
-
- if (u.field_set & (1 << UF_QUERY)) {
- p = msg->url->str + u.field_data[UF_QUERY].off;
- c = p;
- end = p + u.field_data[UF_QUERY].len;
-
- while (p <= end) {
- switch (state) {
- case parse_key:
- if ((p == end || *p == '&') && p > c) {
- /* We have a single parameter without a value */
- key = rspamd_fstring_new_init (c, p - c);
- key_tok = rspamd_ftok_map (key);
- key_tok->len = rspamd_url_decode (key->str, key->str,
- key->len);
-
- value = rspamd_fstring_new_init ("", 0);
- value_tok = rspamd_ftok_map (value);
-
- g_hash_table_replace (res, key_tok, value_tok);
- state = parse_ampersand;
- }
- else if (*p == '=' && p > c) {
- /* We have something like key=value */
- key = rspamd_fstring_new_init (c, p - c);
- key_tok = rspamd_ftok_map (key);
- key_tok->len = rspamd_url_decode (key->str, key->str,
- key->len);
-
- state = parse_eqsign;
- }
- else {
- p ++;
- }
- break;
-
- case parse_eqsign:
- if (*p != '=') {
- c = p;
- state = parse_value;
- }
- else {
- p ++;
- }
- break;
-
- case parse_value:
- if ((p == end || *p == '&') && p >= c) {
- g_assert (key != NULL);
- if (p > c) {
- value = rspamd_fstring_new_init (c, p - c);
- value_tok = rspamd_ftok_map (value);
- value_tok->len = rspamd_url_decode (value->str,
- value->str,
- value->len);
- /* Detect quotes for value */
- if (value_tok->begin[0] == '"') {
- memmove (value->str, value->str + 1,
- value_tok->len - 1);
- value_tok->len --;
- }
- if (value_tok->begin[value_tok->len - 1] == '"') {
- value_tok->len --;
- }
- }
- else {
- value = rspamd_fstring_new_init ("", 0);
- value_tok = rspamd_ftok_map (value);
- }
-
- g_hash_table_replace (res, key_tok, value_tok);
- key = value = NULL;
- key_tok = value_tok = NULL;
- state = parse_ampersand;
- }
- else {
- p ++;
- }
- break;
-
- case parse_ampersand:
- if (p != end && *p != '&') {
- c = p;
- state = parse_key;
- }
- else {
- p ++;
- }
- break;
- }
- }
- }
-
- if (state != parse_ampersand && key != NULL) {
- rspamd_fstring_free (key);
- }
- }
-
- return res;
-}
-
-
-glong
-rspamd_http_date_format (gchar *buf, gsize len, time_t time)
-{
- struct tm tms;
-
- rspamd_gmtime (time, &tms);
-
- return rspamd_snprintf (buf, len, "%s, %02d %s %4d %02d:%02d:%02d GMT",
- http_week[tms.tm_wday], tms.tm_mday,
- http_month[tms.tm_mon], tms.tm_year + 1900,
- tms.tm_hour, tms.tm_min, tms.tm_sec);
-}
-
-struct rspamd_http_message *
-rspamd_http_message_ref (struct rspamd_http_message *msg)
-{
- REF_RETAIN (msg);
-
- return msg;
-}
-
-void
-rspamd_http_message_unref (struct rspamd_http_message *msg)
-{
- REF_RELEASE (msg);
-}
-
-
-void
-rspamd_http_normalize_path_inplace (gchar *path, guint len, guint *nlen)
-{
- const gchar *p, *end, *slash = NULL, *dot = NULL;
- gchar *o;
- enum {
- st_normal = 0,
- st_got_dot,
- st_got_dot_dot,
- st_got_slash,
- st_got_slash_slash,
- } state = st_normal;
-
- p = path;
- end = path + len;
- o = path;
-
- while (p < end) {
- switch (state) {
- case st_normal:
- if (G_UNLIKELY (*p == '/')) {
- state = st_got_slash;
- slash = p;
- }
- else if (G_UNLIKELY (*p == '.')) {
- state = st_got_dot;
- dot = p;
- }
- else {
- *o++ = *p;
- }
- p ++;
- break;
- case st_got_slash:
- if (G_UNLIKELY (*p == '/')) {
- /* Ignore double slash */
- *o++ = *p;
- state = st_got_slash_slash;
- }
- else if (G_UNLIKELY (*p == '.')) {
- dot = p;
- state = st_got_dot;
- }
- else {
- *o++ = '/';
- *o++ = *p;
- slash = NULL;
- dot = NULL;
- state = st_normal;
- }
- p ++;
- break;
- case st_got_slash_slash:
- if (G_LIKELY (*p != '/')) {
- slash = p - 1;
- dot = NULL;
- state = st_normal;
- continue;
- }
- p ++;
- break;
- case st_got_dot:
- if (G_UNLIKELY (*p == '/')) {
- /* Remove any /./ or ./ paths */
- if (((o > path && *(o - 1) != '/') || (o == path)) && slash) {
- /* Preserve one slash */
- *o++ = '/';
- }
-
- slash = p;
- dot = NULL;
- /* Ignore last slash */
- state = st_normal;
- }
- else if (*p == '.') {
- /* Double dot character */
- state = st_got_dot_dot;
- }
- else {
- /* We have something like .some or /.some */
- if (dot && p > dot) {
- if (slash == dot - 1 && (o > path && *(o - 1) != '/')) {
- /* /.blah */
- memmove (o, slash, p - slash);
- o += p - slash;
- }
- else {
- memmove (o, dot, p - dot);
- o += p - dot;
- }
- }
-
- slash = NULL;
- dot = NULL;
- state = st_normal;
- continue;
- }
-
- p ++;
- break;
- case st_got_dot_dot:
- if (*p == '/') {
- /* We have something like /../ or ../ */
- if (slash) {
- /* We need to remove the last component from o if it is there */
- if (o > path + 2 && *(o - 1) == '/') {
- slash = rspamd_memrchr (path, '/', o - path - 2);
- }
- else if (o > path + 1) {
- slash = rspamd_memrchr (path, '/', o - path - 1);
- }
- else {
- slash = NULL;
- }
-
- if (slash) {
- o = (gchar *)slash;
- }
- /* Otherwise we keep these dots */
- slash = p;
- state = st_got_slash;
- }
- else {
- /* We have something like bla../, so we need to copy it as is */
- if (o > path && dot && p > dot) {
- memmove (o, dot, p - dot);
- o += p - dot;
- }
-
- slash = NULL;
- dot = NULL;
- state = st_normal;
- continue;
- }
- }
- else {
- /* We have something like ..bla or ... */
- if (slash) {
- *o ++ = '/';
- }
-
- if (dot && p > dot) {
- memmove (o, dot, p - dot);
- o += p - dot;
- }
-
- slash = NULL;
- dot = NULL;
- state = st_normal;
- continue;
- }
-
- p ++;
- break;
- }
- }
-
- /* Leftover */
- switch (state) {
- case st_got_dot_dot:
- /* Trailing .. */
- if (slash) {
- /* We need to remove the last component from o if it is there */
- if (o > path + 2 && *(o - 1) == '/') {
- slash = rspamd_memrchr (path, '/', o - path - 2);
- }
- else if (o > path + 1) {
- slash = rspamd_memrchr (path, '/', o - path - 1);
- }
- else {
- if (o == path) {
- /* Corner case */
- *o++ = '/';
- }
-
- slash = NULL;
- }
-
- if (slash) {
- /* Remove last / */
- o = (gchar *)slash;
- }
- }
- else {
- /* Corner case */
- if (o == path) {
- *o++ = '/';
- }
- else {
- if (dot && p > dot) {
- memmove (o, dot, p - dot);
- o += p - dot;
- }
- }
- }
- break;
- case st_got_slash:
- *o++ = '/';
- break;
- default:
- if (o > path + 1 && *(o - 1) == '/') {
- o --;
- }
- break;
- }
-
- if (nlen) {
- *nlen = (o - path);
- }
-}
-
-void
-rspamd_http_connection_disable_encryption (struct rspamd_http_connection *conn)
-{
- struct rspamd_http_connection_private *priv;
-
- priv = conn->priv;
-
- if (priv) {
- if (priv->local_key) {
- rspamd_keypair_unref (priv->local_key);
- }
- if (priv->peer_key) {
- rspamd_pubkey_unref (priv->peer_key);
- }
-
- priv->local_key = NULL;
- priv->peer_key = NULL;
- priv->flags &= ~RSPAMD_HTTP_CONN_FLAG_ENCRYPTED;
- }
-}
\ No newline at end of file
projects / rspamd.git / commitdiff