X-Git-Url: http://git.archive.openwrt.org/?p=project%2Fuclient.git;a=blobdiff_plain;f=uclient-http.c;h=ee161e6bd21507f946cc97dddc39dedcecf41ab7;hp=0ce43c20851d231f351050d8e711ae61fd2c2592;hb=cba6b0a007362ab5743044abea88186d2a5abd77;hpb=f619ebe9d3343867bc8a8d5e98e6b81e645129e5 diff --git a/uclient-http.c b/uclient-http.c index 0ce43c2..ee161e6 100644 --- a/uclient-http.c +++ b/uclient-http.c @@ -1,3 +1,20 @@ +/* + * uclient - ustream based protocol client library + * + * Copyright (C) 2014 Felix Fietkau + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ #include #include #include @@ -12,9 +29,6 @@ #include "uclient-utils.h" #include "uclient-backend.h" -static struct ustream_ssl_ctx *ssl_ctx; -static uint32_t nc; - enum auth_type { AUTH_TYPE_UNKNOWN, AUTH_TYPE_NONE, @@ -26,6 +40,7 @@ enum request_type { REQ_GET, REQ_HEAD, REQ_POST, + REQ_PUT, __REQ_MAX }; @@ -42,19 +57,26 @@ static const char * const request_types[__REQ_MAX] = { [REQ_GET] = "GET", [REQ_HEAD] = "HEAD", [REQ_POST] = "POST", + [REQ_PUT] = "PUT", }; struct uclient_http { struct uclient uc; + const struct ustream_ssl_ops *ssl_ops; + struct ustream_ssl_ctx *ssl_ctx; struct ustream *us; struct ustream_fd ufd; struct ustream_ssl ussl; + struct uloop_timeout disconnect_t; + + bool ssl_require_validation; bool ssl; bool eof; bool connection_close; + bool disconnect; enum request_type req_type; enum http_state state; @@ -64,6 +86,8 @@ struct uclient_http { long read_chunked; long content_length; + uint32_t nc; + struct blob_buf headers; struct blob_buf meta; }; @@ -82,6 +106,7 @@ static const char * const uclient_http_prefix[] = { static int uclient_do_connect(struct uclient_http *uh, const char *port) { + socklen_t sl; int fd; if (uh->uc.url->port) @@ -92,11 +117,20 @@ static int uclient_do_connect(struct uclient_http *uh, const char *port) return -1; ustream_fd_init(&uh->ufd, fd); + + memset(&uh->uc.local_addr, 0, sizeof(uh->uc.local_addr)); + memset(&uh->uc.remote_addr, 0, sizeof(uh->uc.remote_addr)); + + sl = sizeof(uh->uc.local_addr); + getsockname(fd, &uh->uc.local_addr.sa, &sl); + getpeername(fd, &uh->uc.remote_addr.sa, &sl); + return 0; } static void uclient_http_disconnect(struct uclient_http *uh) { + uloop_timeout_cancel(&uh->disconnect_t); if (!uh->us) return; @@ -117,10 +151,21 @@ static void uclient_http_free_url_state(struct uclient *cl) uclient_http_disconnect(uh); } +static void uclient_http_error(struct uclient_http *uh, int code) +{ + uh->state = HTTP_STATE_ERROR; + uh->us->eof = true; + ustream_state_change(uh->us); + uclient_backend_set_error(&uh->uc, code); +} + static void uclient_notify_eof(struct uclient_http *uh) { struct ustream *us = uh->us; + if (uh->disconnect) + return; + if (!uh->eof) { if (!us->eof && !us->write_error) return; @@ -141,6 +186,7 @@ static void uclient_http_reset_state(struct uclient_http *uh) uh->read_chunked = -1; uh->content_length = -1; uh->eof = false; + uh->disconnect = false; uh->connection_close = false; uh->state = HTTP_STATE_INIT; @@ -275,7 +321,7 @@ static bool strmatch(char **str, const char *prefix) static void get_cnonce(char *dest) { - uint32_t val = nc; + uint32_t val = 0; FILE *f; f = fopen("/dev/urandom", "r"); @@ -376,7 +422,7 @@ uclient_http_add_auth_digest(struct uclient_http *uh) if (!realm || !data.qop || !data.nonce) return; - sprintf(nc_str, "%08x", nc++); + sprintf(nc_str, "%08x", uh->nc++); get_cnonce(cnonce_str); data.qop = "auth"; @@ -463,12 +509,14 @@ uclient_http_send_headers(struct uclient_http *uh) blobmsg_for_each_attr(cur, uh->headers.head, rem) ustream_printf(uh->us, "%s: %s\n", blobmsg_name(cur), (char *) blobmsg_data(cur)); - if (uh->req_type == REQ_POST) + if (uh->req_type == REQ_POST || uh->req_type == REQ_PUT) ustream_printf(uh->us, "Transfer-Encoding: chunked\r\n"); uclient_http_add_auth_header(uh); ustream_printf(uh->us, "\r\n"); + + uh->state = HTTP_STATE_HEADERS_SENT; } static void uclient_http_headers_complete(struct uclient_http *uh) @@ -489,7 +537,10 @@ static void uclient_http_headers_complete(struct uclient_http *uh) if (uh->uc.cb->header_done) uh->uc.cb->header_done(&uh->uc); - if (uh->req_type == REQ_HEAD) { + if (uh->eof) + return; + + if (uh->req_type == REQ_HEAD || uh->uc.status_code == 204) { uh->eof = true; uclient_notify_eof(uh); } @@ -551,7 +602,7 @@ static void __uclient_notify_read(struct uclient_http *uh) char *data; int len; - if (uh->state < HTTP_STATE_REQUEST_DONE) + if (uh->state < HTTP_STATE_REQUEST_DONE || uh->state == HTTP_STATE_ERROR) return; data = ustream_get_read_buf(uh->us, &len); @@ -585,6 +636,9 @@ static void __uclient_notify_read(struct uclient_http *uh) ustream_consume(uh->us, cur_len); len -= cur_len; + if (uh->eof) + return; + data = ustream_get_read_buf(uh->us, &len); } while (data && uh->state < HTTP_STATE_RECV_DATA); @@ -592,6 +646,9 @@ static void __uclient_notify_read(struct uclient_http *uh) return; } + if (uh->eof) + return; + if (uh->state == HTTP_STATE_RECV_DATA && uc->cb->data_read) uc->cb->data_read(uc); } @@ -616,13 +673,15 @@ static int uclient_setup_http(struct uclient_http *uh) int ret; uh->us = us; + uh->ssl = false; + us->string_data = true; us->notify_state = uclient_notify_state; us->notify_read = uclient_notify_read; ret = uclient_do_connect(uh, "80"); if (ret) - return ret; + return UCLIENT_ERROR_CONNECT; return 0; } @@ -641,6 +700,34 @@ static void uclient_ssl_notify_state(struct ustream *us) uclient_notify_eof(uh); } +static void uclient_ssl_notify_error(struct ustream_ssl *ssl, int error, const char *str) +{ + struct uclient_http *uh = container_of(ssl, struct uclient_http, ussl); + + uclient_http_error(uh, UCLIENT_ERROR_CONNECT); +} + +static void uclient_ssl_notify_verify_error(struct ustream_ssl *ssl, int error, const char *str) +{ + struct uclient_http *uh = container_of(ssl, struct uclient_http, ussl); + + if (!uh->ssl_require_validation) + return; + + uclient_http_error(uh, UCLIENT_ERROR_SSL_INVALID_CERT); +} + +static void uclient_ssl_notify_connected(struct ustream_ssl *ssl) +{ + struct uclient_http *uh = container_of(ssl, struct uclient_http, ussl); + + if (!uh->ssl_require_validation) + return; + + if (!uh->ussl.valid_cn) + uclient_http_error(uh, UCLIENT_ERROR_SSL_CN_MISMATCH); +} + static int uclient_setup_https(struct uclient_http *uh) { struct ustream *us = &uh->ussl.stream; @@ -649,17 +736,21 @@ static int uclient_setup_https(struct uclient_http *uh) uh->ssl = true; uh->us = us; + if (!uh->ssl_ctx) + return UCLIENT_ERROR_MISSING_SSL_CONTEXT; + ret = uclient_do_connect(uh, "443"); if (ret) - return ret; - - if (!ssl_ctx) - ssl_ctx = ustream_ssl_context_new(false); + return UCLIENT_ERROR_CONNECT; us->string_data = true; us->notify_state = uclient_ssl_notify_state; us->notify_read = uclient_ssl_notify_read; - ustream_ssl_init(&uh->ussl, &uh->ufd.stream, ssl_ctx, false); + uh->ussl.notify_error = uclient_ssl_notify_error; + uh->ussl.notify_verify_error = uclient_ssl_notify_verify_error; + uh->ussl.notify_connected = uclient_ssl_notify_connected; + uh->ssl_ops->init(&uh->ussl, &uh->ufd.stream, uh->ssl_ctx, false); + uh->ssl_ops->set_peer_cn(&uh->ussl, uh->uc.url->host); return 0; } @@ -667,6 +758,7 @@ static int uclient_setup_https(struct uclient_http *uh) static int uclient_http_connect(struct uclient *cl) { struct uclient_http *uh = container_of(cl, struct uclient_http, uc); + int ret; uclient_http_init_request(uh); @@ -676,9 +768,18 @@ static int uclient_http_connect(struct uclient *cl) uh->ssl = cl->url->prefix == PREFIX_HTTPS; if (uh->ssl) - return uclient_setup_https(uh); + ret = uclient_setup_https(uh); else - return uclient_setup_http(uh); + ret = uclient_setup_http(uh); + + return ret; +} + +static void uclient_http_disconnect_cb(struct uloop_timeout *timeout) +{ + struct uclient_http *uh = container_of(timeout, struct uclient_http, disconnect_t); + + uclient_http_disconnect(uh); } static struct uclient *uclient_http_alloc(void) @@ -686,16 +787,24 @@ static struct uclient *uclient_http_alloc(void) struct uclient_http *uh; uh = calloc_a(sizeof(*uh)); + uh->disconnect_t.cb = uclient_http_disconnect_cb; blob_buf_init(&uh->headers, 0); return &uh->uc; } +static void uclient_http_free_ssl_ctx(struct uclient_http *uh) +{ + uh->ssl_ops = NULL; + uh->ssl_ctx = NULL; +} + static void uclient_http_free(struct uclient *cl) { struct uclient_http *uh = container_of(cl, struct uclient_http, uc); uclient_http_free_url_state(cl); + uclient_http_free_ssl_ctx(uh); blob_buf_free(&uh->headers); blob_buf_free(&uh->meta); free(uh); @@ -725,7 +834,7 @@ uclient_http_set_request_type(struct uclient *cl, const char *type) } int -uclient_http_reset_headers(struct uclient *cl, const char *name, const char *value) +uclient_http_reset_headers(struct uclient *cl) { struct uclient_http *uh = container_of(cl, struct uclient_http, uc); @@ -759,10 +868,11 @@ uclient_http_send_data(struct uclient *cl, char *buf, unsigned int len) uclient_http_send_headers(uh); - ustream_printf(uh->us, "%X\r\n", len); - if (len > 0) + if (len > 0) { + ustream_printf(uh->us, "%X\r\n", len); ustream_write(uh->us, buf, len, false); - ustream_printf(uh->us, "\r\n"); + ustream_printf(uh->us, "\r\n"); + } return len; } @@ -776,6 +886,8 @@ uclient_http_request_done(struct uclient *cl) return -1; uclient_http_send_headers(uh); + if (uh->req_type == REQ_POST || uh->req_type == REQ_PUT) + ustream_printf(uh->us, "0\r\n\r\n"); uh->state = HTTP_STATE_REQUEST_DONE; return 0; @@ -888,12 +1000,43 @@ bool uclient_http_redirect(struct uclient *cl) return true; } +int uclient_http_set_ssl_ctx(struct uclient *cl, const struct ustream_ssl_ops *ops, + struct ustream_ssl_ctx *ctx, bool require_validation) +{ + struct uclient_http *uh = container_of(cl, struct uclient_http, uc); + + if (cl->backend != &uclient_backend_http) + return -1; + + uclient_http_free_url_state(cl); + + uclient_http_free_ssl_ctx(uh); + uh->ssl_ops = ops; + uh->ssl_ctx = ctx; + uh->ssl_require_validation = !!ctx && require_validation; + + return 0; +} + +static void uclient_http_request_disconnect(struct uclient *cl) +{ + struct uclient_http *uh = container_of(cl, struct uclient_http, uc); + + if (!uh->us) + return; + + uh->eof = true; + uh->disconnect = true; + uloop_timeout_set(&uh->disconnect_t, 1); +} + const struct uclient_backend uclient_backend_http = { .prefix = uclient_http_prefix, .alloc = uclient_http_alloc, .free = uclient_http_free, .connect = uclient_http_connect, + .disconnect = uclient_http_request_disconnect, .update_url = uclient_http_free_url_state, .read = uclient_http_read,