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Add basic aisl tool implementation

This commit is contained in:
Ilja Kartašov 2019-07-14 20:56:28 +02:00
parent ce7eda1820
commit 043d414df4
9 changed files with 282 additions and 605 deletions
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65
library.mk
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#
# config.mk
# Löwenware Makefile Config, 2019-03-02 17:35
#
PREFIX ?= /usr/local
PKG_CONFIG ?= pkg-config
PROJECT_NAME = aisl
# Version
PROJECT_VERSION_MAJOR = 1
PROJECT_VERSION_MINOR = 0
PROJECT_VERSION_TWEAK = 5
PROJECT_VERSION_LABEL = 0
#SRC_DIR = src
#SDK_DIR = sdk
#OUT_DIR = ./build
# Source files
PROJECT_SOURCES := \
$(SRC_DIR)/instance.c \
$(SRC_DIR)/server.c \
$(SRC_DIR)/client.c \
$(SRC_DIR)/stream.c \
$(SRC_DIR)/http.c \
$(SRC_DIR)/ssl.c \
$(SRC_DIR)/list.c \
$(SRC_DIR)/str-utils.c \
$(SRC_DIR)/buffer.c \
$(SRC_DIR)/types.c \
# includes
PROJECT_INCLUDES = -I./ \
-I./include \
`$(PKG_CONFIG) --cflags openssl` \
# libraries
PROJECT_LIBRARIES = \
`$(PKG_CONFIG) --libs openssl` \
# compilation macro options:
AISL_WITH_DEBUG ?= 0 # disable debug output
AISL_WITH_SSL ?= 1 # enable SSL support
AISL_WITH_STRINGIFIERS ?= 1 # enable *_to_string functions
# flags
PROJECT_CFLAGS = -D_POSIX_C_SOURCE=200809L
PROJECT_CFLAGS += -DAISL_WITH_DEBUG=$(AISL_WITH_DEBUG)
PROJECT_CFLAGS += -DAISL_WITH_SSL=$(AISL_WITH_SSL)
PROJECT_CFLAGS += -DAISL_WITH_STRINGIFIERS=$(AISL_WITH_STRINGIFIERS)
# PROJECT_LDFLAGS = -L
# vim:ft=make
#

539
library/)
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#include <time.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#ifndef AISL_WITHOUT_SSL
#include <openssl/err.h>
#endif
#include <aisl/aisl.h>
#include "debug.h"
#include "stream.h"
#include "http.h"
#include "server.h"
#include "instance.h"
#include "client.h"
#define FLAG_KEEPALIVE (1<<0)
#define FLAG_HANDSHAKE (1<<1)
#define FLAG_CAN_READ (1<<2)
#define FLAG_CAN_WRITE (1<<3)
#define BUFFER_SIZE (16*1024)
static void
aisl_client_close(AislClient client, AislStatus status)
{
if (client->fd != -1)
{
aisl_raise(
client->server->instance
, (void *)client
, AISL_EVENT_CLIENT_DISCONNECT
, status
);
close(client->fd);
shutdown(client->fd, SHUT_RDWR);
client->fd = -1;
}
}
static AislStatus
aisl_client_parse(AislClient client, char * data, int32_t size)
{
AislStatus result = AISL_SUCCESS;
AislStream s = client->stream;
ParserStatus p = HTTP_PARSER_SUCCESS;
int32_t bytes_left = size;
switch (client->http_version)
{
case AISL_HTTP_0_9:
case AISL_HTTP_1_0:
case AISL_HTTP_1_1:
/* s = client->stream; */
while ( p == HTTP_PARSER_SUCCESS )
{
switch ( aisl_stream_get_state(s) )
{
case AISL_STREAM_STATE_IDLE:
p = http_10_parse_request(data, &size, client->stream);
break;
case AISL_STREAM_STATE_WAIT_HEADER:
p = http_10_parse_header(data, &size, client->stream);
break;
case AISL_STREAM_STATE_WAIT_BODY:
p = http_10_parse_body(data, &size, client->stream);
break;
default: /* has input data, but request was already parsed */
p = HTTP_PARSER_ERROR;
continue;
}
// size now has number of parsed bytes
data += size;
bytes_left -= size;
size = bytes_left;
}
break;
case AISL_HTTP_2_0:
break;
}
switch(p)
{
case HTTP_PARSER_READY:
client->flags &= ~FLAG_CAN_READ;
client->flags |= FLAG_CAN_WRITE;
aisl_raise(
client->server->instance
, (void *) s
, AISL_EVENT_STREAM_REQUEST
, result
);
break;
case HTTP_PARSER_ERROR:
/* reply Bad Request here */
client->stream->http_response = AISL_HTTP_BAD_REQUEST;
aisl_raise(
client->server->instance
, (void *) s
, AISL_EVENT_STREAM_ERROR
, result
);
aisl_client_close(client, result);
return result;
default:
break;
}
if (size)
buffer_shift(&client->in, client->in.used - size); /* reset buffer */
return result;
}
/* In HTTP 2.0 client->stream will be NULL if stream related data was completely
* parsed. If it is not NULL, then stream expects additional data -> same like
* in mono stream HTTP 1.0
*/
static AislStatus
aisl_client_input(AislClient client)
{
int l;
char * data = &client->in.data[ client->in.used ];
int32_t size = client->in.size - client->in.used;
#ifndef AISL_WITHOUT_SSL
if (client->ssl)
{
DPRINTF("SSL_read");
if ( !(client->flags & FLAG_HANDSHAKE) )
{
if ( (l = SSL_accept(client->ssl)) != 1 )
{
l = SSL_get_error(client->ssl, l);
if (l == SSL_ERROR_WANT_READ || l == SSL_ERROR_WANT_WRITE)
return AISL_IDLE;
DPRINTF("SSL handshake fail: %s\n", ERR_error_string(l, NULL) );
aisl_client_close(client, AISL_EXTCALL_ERROR);
return AISL_EXTCALL_ERROR;
}
client->flags &= ~FLAG_HANDSHAKE;
}
l = SSL_read(client->ssl, data, size) ;
}
else
#endif
l = recv( client->fd, data, size, 0);
if (l > 0)
{
DPRINTF("%d bytes received from client", l);
data = client->in.data;
size = client->in.used + l;
client->in.used = size;
return aisl_client_parse(client, data, size);
}
else if (l<0)
{
#ifndef AISL_WITHOUT_SSL
if (client->ssl)
{
if (SSL_get_error(client->ssl, l) == SSL_ERROR_WANT_READ)
return AISL_IDLE;
}
else
#endif
{
if(errno == EWOULDBLOCK)
return AISL_IDLE;
DPRINTF("client - %s", strerror(errno));
}
}
/* both: client disconnect + on read error */
/* todo: raise client error here */
aisl_client_close(client, AISL_SYSCALL_ERROR);
return AISL_SYSCALL_ERROR;
}
static AislStatus
aisl_client_output(AislClient client)
{
int l;
char * data;
AislStream s = client->stream;
/* while stream is not flushed, we should raise event */
if( aisl_get_output_event(s) )
{
/* in case of chunked output ( subscription for AISL_STREAM_OUTPUT event )
* stream buffer will be initialized with OUTPUT_BUFFER_SIZE size, but
* buffer->size will be used to carry amount of stored bytes
* */
l = aisl_stream_get_buffer_space(s);
/*
if (bsz < OUTPUT_BUFFER_SIZE)
{
if (buffer_clear(s->buffer, OUTPUT_BUFFER_SIZE) == 0)
return false;
s->buffer->size = bsz;
bsz = OUTPUT_BUFFER_SIZE;
}
*/
if ( !(l < aisl_stream_get_buffer_size(s) / 2) )
{
aisl_raise(
client->server->instance
, (void*)s
, AISL_EVENT_STREAM_OUTPUT
, AISL_SUCCESS
);
}
}
data = aisl_stream_get_data(s, &l);
if ( !l )
return AISL_IDLE;
#ifdef AISL_WITHOUT_SSL
l = send( client->fd, data, l, 0);
#else
l = (client->ssl) ?
SSL_write(client->ssl, data, l) :
send( client->fd, data, l, 0);
#endif
if (l > 0)
{
aisl_stream_shift(s, l);
/*
if (s->state == STREAM_RESPONSE_READY && / * flushed * /
s->buffer->size == 0) / * all sent * /
*/
if ( aisl_stream_is_done(s) )
{
/* buffer_clear(s->buffer, 0); */
/* data has been sent */
if (client->flags & FLAG_KEEPALIVE)
{
aisl_stream_free(s);
client->stream = aisl_stream_new(client, client->next_id++);
if (client->stream != NULL )
return AISL_SUCCESS;
/* in case of malloc error it will not be error as long as request was
* handled and we just close the connection.
*/
}
aisl_client_close(client, AISL_SUCCESS);
}
return AISL_SUCCESS;
}
/* l < 0 */
#ifndef AISL_WITHOUT_SSL
if (client->ssl)
{
if ( SSL_get_error(client->ssl, l) == SSL_ERROR_WANT_WRITE )
return AISL_IDLE;
}
else
#endif
{
if (errno == EWOULDBLOCK)
return AISL_IDLE;
}
aisl_client_close(client, AISL_SYSCALL_ERROR);
return AISL_SYSCALL_ERROR;
}
AislClient
aisl_client_new( AislServer server,
int fd,
struct sockaddr_in * addr )
{
AislClient client;
AislStream stream;
if ( (client = calloc(1, sizeof (struct aisl_client))) != NULL )
{
DPRINTF("client alocated");
memcpy(&client->address, addr, sizeof (struct sockaddr_in));
client->server = server;
client->fd = fd;
client->next_id = 2;
client->http_version = AISL_HTTP_1_0;
client->timestamp = time(NULL);
client->flags = FLAG_KEEPALIVE | FLAG_HANDSHAKE | FLAG_CAN_READ;
if (buffer_init(&client->in, 2*BUFFER_SIZE) != -1)
{
DPRINTF("client buffer alocated");
memcpy(&client->out, &client->in, sizeof (struct buffer));
stream = aisl_stream_new(client, 0);
if (stream != NULL)
{
client->stream = stream;
DPRINTF("client stream alocated");
#ifdef AISL_WITHOUT_SSL
return client;
#else
SSL_CTX * ssl_ctx;
if ( !server->ssl )
return client;
ssl_ctx = aisl_get_ssl_ctx(server->instance, NULL);
if ((client->ssl = SSL_new(ssl_ctx)) != NULL )
{
SSL_set_fd(client->ssl, fd);
return client;
}
#endif
}
}
aisl_client_free(client);
}
return NULL;
}
void
aisl_client_free(AislClient client)
{
aisl_client_close(client, AISL_SUCCESS);
#ifndef AISL_WITHOUT_SSL
if (client->ssl)
SSL_free(client->ssl);
#endif
if (client->in.data)
free(client->in.data);
/* out buffer is a shared part of input buffer, so no need to free it */
if (client->stream)
aisl_stream_free(client->stream);
free(client);
}
AislStatus
AislClientouch(AislClient client, int32_t timeout)
{
AislStatus result = AISL_IDLE,
status = AISL_IDLE;
/* input */
if (client->flags & FLAG_CAN_READ)
{
if ( (result = aisl_client_input(client)) < 0 )
return result;
}
/* output */
if (client->flags & FLAG_CAN_WRITE)
{
if ( (status = aisl_client_output(client)) < 0 )
return status;
}
/*
if ((client->http_version==AISL_HTTP_2_0 || s->state<STREAM_REQUEST_READY) &&
(client_input(client)) ) result = true;
*/
/* output */
/*
s = list_index(client->streams, client->ostream);
if ( s->flags & (STREAM_FLAG_OUTPUT_READY | STREAM_FLAG_OUTPUT_CHUNKED) )
result = client_output(client);
*/
/* update timestamp */
if (result == AISL_IDLE)
result = status;
if (result == AISL_SUCCESS)
client->timestamp = time(NULL);
else
{
time_t now;
time(&now);
if ( !(now - client->timestamp < timeout) )
{
aisl_client_close(client, result);
}
}
return result;
}
int
aisl_client_get_socket(AislClient client)
{
return client->fd;
}
bool
aisl_client_get_keepalive(AislClient client)
{
return (client->flags & FLAG_KEEPALIVE);
}
void
aisl_client_set_keepalive(AislClient client, bool value)
{
if (value)
client->flags |= FLAG_KEEPALIVE;
else
client->flags &= ~FLAG_KEEPALIVE;
}
/* API Level ---------------------------------------------------------------- */
__attribute__ ((visibility ("default") ))
AislServer
aisl_client_get_server(AislClient client)
{
return client->server;
}
__attribute__ ((visibility ("default") ))
bool
aisl_client_is_secure(AislClient client)
{
#ifdef AISL_WITHOUT_SSL
return false;
#else
return (client->ssl == NULL) ? false : true;
#endif
}
__attribute__ ((visibility ("default") ))
bool
aisl_client_is_online(AislClient client)
{
return (client->fd == -1) ? false : true;
}
__attribute__ ((visibility ("default") ))
void
aisl_client_disconnect(AislClient client)
{
aisl_client_close(client, AISL_SUCCESS);
}
__attribute__ ((visibility ("default") ))
AislHttpVersion
aisl_client_get_http_version(AislClient client)
{
return client->http_version;
}
__attribute__ ((visibility ("default") ))
void
aisl_client_get_address( AislClient client, struct sockaddr_in * address)
{
memcpy(address, &client->address, sizeof (struct sockaddr_in));
}

2
sdk

@ -1 +1 @@
Subproject commit b9e247b88f43dfeae69ac1371a78787950d859ed
Subproject commit e00ffe6f708f1460ca1d2b00d94c739ebb2cb184

84
tool/compose.c Normal file
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/******************************************************************************
*
* Copyright (c) 2017-2019 by Löwenware Ltd
* Please, refer LICENSE file for legal information
*
******************************************************************************/
/**
* @file compose.c
* @author Ilja Kartašov <ik@lowenware.com>
* @brief
*
* @see https://lowenware.com/
*/
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <components/html.h>
#include "option.h"
#include "compose.h"
static int
compose_help(void)
{
printf("NAME\n");
printf("\taisl-compose - Compose plain text resource\n\n");
printf("SYNOPSIS\n");
printf("\taisl compose [--format=auto|html|js|css] <source> <target>\n\n");
printf("DESCRIPTION\n");
printf("\tComposes a plain text resource to its production version.");
printf("OPTIONS\n");
printf("\t--format=auto|html|js|css\n");
printf("\t Manually set format for the composer. Usefull when file "
"extension does not allow to determine type automatically.\n\n");
return 0;
}
int
compose_execute(int argc, char **argv)
{
int result;
struct cstuff_list list;
struct ax_html_options opts = {0};
if (g_options & OPTION_FLAG_HELP) {
return compose_help();
}
result = -1;
if (!(argc == 1 || argc == 2)) {
return result;
}
g_source = argv[0];
if (argc == 2) {
g_target = argv[1];
}
opts.offset = "\t";
opts.path = g_target ? g_target : ".";
opts.name = "html";
opts.minimize = true;
if (!cstuff_list_init(&list, 128)) {
if (ax_html_import(&list, g_source) == AISL_SUCCESS) {
if (ax_html_export(&list, &opts) == AISL_SUCCESS) {
result = 0;
} else {
fprintf(stderr, "Export failed\n");
}
} else {
fprintf(stderr, "Import failed: %s\n", strerror(errno));
}
cstuff_list_release(&list, (CStuffListFree)ax_html_free);
}
return result;
}

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tool/compose.h Normal file
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/******************************************************************************
*
* Copyright (c) 2017-2019 by Löwenware Ltd
* Please, refer LICENSE file for legal information
*
******************************************************************************/
/**
* @file compose.h
* @author Ilja Kartašov <ik@lowenware.com>
* @brief
*
* @see https://lowenware.com/
*/
#ifndef COMPOSE_H_006245E9_DAFB_4160_AB48_2268FA6E0769
#define COMPOSE_H_006245E9_DAFB_4160_AB48_2268FA6E0769
int
compose_execute(int argc, char **argv);
#endif /* !COMPOSE_H */

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tool/globals.h Normal file
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/******************************************************************************
*
* Copyright (c) 2017-2019 by Löwenware Ltd
* Please, refer LICENSE file for legal information
*
******************************************************************************/
/**
* @file globals.h
* @author Ilja Kartašov <ik@lowenware.com>
* @brief
*
* @see https://lowenware.com/
*/
#ifndef GLOBALS_H_ECAB54AF_855F_408C_9CC1_65B994859848
#define GLOBALS_H_ECAB54AF_855F_408C_9CC1_65B994859848
#include <stdint.h>
extern uint32_t g_options;
#endif /* !GLOBALS_H */

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tool/main.c Normal file
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/******************************************************************************
*
* Copyright (c) 2017-2019 by Löwenware Ltd
* Please, refer LICENSE file for legal information
*
******************************************************************************/
/**
* @file main.c
* @author Ilja Kartašov <ik@lowenware.com>
* @brief
*
* @see https://lowenware.com/
*/
#include <stdio.h>
#include "option.h"
#include "compose.h"
int
main(int argc, char **argv)
{
int result;
if ((result = option_read_args(argc, argv)) != -1) {
switch (g_options & 0xFF) {
case OPTION_COMMAND_COMPOSE:
if (!compose_execute(argc - result, &argv[result]))
return 0;
break;
default:
result = -1;
break;
}
}
printf("For usage guideance run `%s --help`\n", argv[0]);
return result;
}

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tool/option.c Normal file
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/******************************************************************************
*
* Copyright (c) 2017-2019 by Löwenware Ltd
* Please, refer LICENSE file for legal information
*
******************************************************************************/
/**
* @file option.c
* @author Ilja Kartašov <ik@lowenware.com>
* @brief
*
* @see https://lowenware.com/
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "option.h"
uint32_t g_options = 0;
const char *g_format = NULL;
const char *g_source = NULL;
const char *g_target = NULL;
static void
option_set_command(int command)
{
if (!(g_options & 0xFF)) {
g_options |= command;
}
}
int
option_read_args(int argc, char **argv)
{
int i;
char c = 0;
for (i = 1; i < argc; i++) {
switch (c) {
case 'f':
g_format = argv[i];
break;
default:
if (strcmp(argv[i], "-f") == 0) {
c = 'f';
} else if (!strncmp(argv[i], "--format=", 9)) {
g_format = &argv[i][9];
} else if (!strcmp(argv[i], "-h") || !strcmp(argv[i], "--help")) {
g_options |= OPTION_FLAG_HELP;
} else if (!strcmp(argv[i], "compose")) {
option_set_command(OPTION_COMMAND_COMPOSE);
} else {
return i;
}
continue;
}
c = 0;
}
if (c) {
fprintf(stderr, "No value for -%c argument", c);
return -1;
}
return i - 1;
}

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tool/option.h Normal file
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/******************************************************************************
*
* Copyright (c) 2017-2019 by Löwenware Ltd
* Please, refer LICENSE file for legal information
*
******************************************************************************/
/**
* @file option.h
* @author Ilja Kartašov <ik@lowenware.com>
* @brief
*
* @see https://lowenware.com/
*/
#ifndef OPTION_H_FC8ABD38_1EF9_4DD2_A94A_3C4F53E0A437
#define OPTION_H_FC8ABD38_1EF9_4DD2_A94A_3C4F53E0A437
#include <stdint.h>
#define OPTION_FLAG_HELP (1 << 16)
enum {
OPTION_COMMAND_UNKNOWN
, OPTION_COMMAND_COMPOSE
};
extern uint32_t g_options;
extern const char *g_format;
extern const char *g_source;
extern const char *g_target;
int
option_read_args(int argc, char **argv);
#endif /* !OPTION_H */