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experimental keep-alive, options defaults

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This commit is contained in:
valenok 2010-08-31 08:01:14 +01:00
parent fed9ffc150
commit f105b74dc0
4 changed files with 157 additions and 111 deletions
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11
main.c
View File

@ -57,7 +57,7 @@
static int exit_flag; /* Program termination flag */
#if !defined(CONFIG_FILE)
#define CONFIG_FILE "mongoose.conf"
#define CONFIG_FILE "mongoose.conf"
#endif /* !CONFIG_FILE */
#define MAX_OPTIONS 40
@ -103,8 +103,9 @@ static void show_usage_and_exit(void) {
fprintf(stderr, "OPTIONS:\n");
names = mg_get_valid_option_names();
for (i = 0; names[i] != NULL; i += 2) {
fprintf(stderr, " -%s %s\n", names[i], names[i + 1]);
for (i = 0; names[i] != NULL; i += 3) {
fprintf(stderr, " -%s %s (default: \"%s\")\n",
names[i], names[i + 1], names[i + 2] == NULL ? "" : names[i + 2]);
}
fprintf(stderr, "See http://code.google.com/p/mongoose/wiki/MongooseManual"
" for more details.\n");
@ -164,6 +165,7 @@ static void process_command_line_arguments(char *argv[], char **options) {
const char *config_file = NULL;
char line[512], opt[512], val[512], path[PATH_MAX], *p;
FILE *fp = NULL;
struct stat st;
size_t i, line_no = 0;
/* Should we use a config file ? */
@ -175,6 +177,9 @@ static void process_command_line_arguments(char *argv[], char **options) {
snprintf(path, sizeof(path), "%.*s%s",
(int) (p - argv[0]) + 1, argv[0], CONFIG_FILE);
}
if (stat(path, &st) == 0) {
config_file = path;
}
}
/* If config file was set in command line and open failed, exit */
if (config_file != NULL && (fp = fopen(config_file, "r")) == NULL) {

249
mongoose.c
View File

@ -352,19 +352,31 @@ enum {
CGI_INTERPRETER, CGI_ENVIRONMENT, SSI_EXTENSIONS, AUTHENTICATION_DOMAIN,
URI_PROTECTION, GLOBAL_PASSWORDS_FILE, PUT_DELETE_PASSWORDS_FILE,
ACCESS_LOG_FILE, ERROR_LOG_FILE, ACCESS_CONTROL_LIST, RUN_AS_USER,
EXTRA_MIME_TYPES, ENABLE_DIRECTORY_LISTING, NUM_THREADS,
EXTRA_MIME_TYPES, ENABLE_DIRECTORY_LISTING, ENABLE_KEEP_ALIVE, NUM_THREADS,
NUM_OPTIONS
};
// There are two entries for each option: a short and a long version.
static const char *option_names[] = {
"r", "document_root", "p", "listening_ports", "i", "index_files",
"s", "ssl_certificate", "C", "cgi_extensions", "I", "cgi_interpreter",
"E", "cgi_environment", "S", "ssi_extensions", "R", "authentication_domain",
"P", "protect_uri", "g", "global_passwords_file",
"G", "put_delete_passwords_file", "a", "access_log_file",
"e", "error_log_file", "l", "access_control_list", "u", "run_as_user",
"m", "extra_mime_types", "d", "enable_directory_listing", "t", "num_threads",
static const char *config_options[] = {
"r", "document_root", ".",
"p", "listening_ports", "8080",
"i", "index_files", "index.html,index.htm,index.cgi",
"s", "ssl_certificate", NULL,
"C", "cgi_extensions", ".cgi,.pl,.php",
"I", "cgi_interpreter", NULL,
"E", "cgi_environment", NULL,
"S", "ssi_extensions", ".shtml,.shtm",
"R", "authentication_domain", "mydomain.com",
"P", "protect_uri", NULL,
"g", "global_passwords_file", NULL,
"G", "put_delete_passwords_file", NULL,
"a", "access_log_file", NULL,
"e", "error_log_file", NULL,
"l", "access_control_list", NULL,
"u", "run_as_user", NULL,
"m", "extra_mime_types", NULL,
"d", "enable_directory_listing", "yes",
"k", "enable_keep_alive", "no",
"t", "num_threads", "10",
NULL
};
@ -402,7 +414,7 @@ struct mg_connection {
};
const char **mg_get_valid_option_names(void) {
return option_names;
return config_options;
}
static void *call_user(struct mg_connection *conn, enum mg_event event) {
@ -412,10 +424,11 @@ static void *call_user(struct mg_connection *conn, enum mg_event event) {
static int get_option_index(const char *name) {
int i;
for (i = 0; option_names[i] != NULL; i += 2) {
if (strcmp(option_names[i], name) == 0 ||
strcmp(option_names[i + 1], name) == 0) {
return i / 2;
#define ENTRIES_PER_OPTION 3
for (i = 0; config_options[i] != NULL; i += ENTRIES_PER_OPTION) {
if (strcmp(config_options[i], name) == 0 ||
strcmp(config_options[i + 1], name) == 0) {
return i / ENTRIES_PER_OPTION;
}
}
return -1;
@ -448,7 +461,7 @@ static void cry(struct mg_connection *conn, const char *fmt, ...) {
// same way string option can.
conn->request_info.log_message = buf;
if (call_user(conn, MG_EVENT_LOG) == NULL) {
fp = conn->ctx->config[ERROR_LOG_FILE] == NULL ? stderr :
fp = conn->ctx->config[ERROR_LOG_FILE] == NULL ? NULL :
mg_fopen(conn->ctx->config[ERROR_LOG_FILE], "a+");
if (fp != NULL) {
@ -673,6 +686,17 @@ static int match_extension(const char *path, const char *ext_list) {
}
#endif // !NO_CGI
// HTTP 1.1 assumes keep alive if "Connection:" header is not set
static int should_keep_alive(const struct mg_connection *conn) {
const char *header = mg_get_header(conn, "Connection");
return (header == NULL && !strcmp(conn->request_info.http_version, "1.1")) ||
(header != NULL && !strcmp(header, "keep-alive"));
}
static const char *suggest_connection_header(const struct mg_connection *conn) {
return should_keep_alive(conn) ? "keep-alive" : "close";
}
static void send_http_error(struct mg_connection *conn, int status,
const char *reason, const char *fmt, ...) {
char buf[BUFSIZ];
@ -700,7 +724,8 @@ static void send_http_error(struct mg_connection *conn, int status,
mg_printf(conn, "HTTP/1.1 %d %s\r\n"
"Content-Type: text/plain\r\n"
"Content-Length: %d\r\n"
"Connection: close\r\n\r\n", status, reason, len);
"Connection: %s\r\n\r\n", status, reason, len,
suggest_connection_header(conn));
conn->num_bytes_sent += mg_printf(conn, "%s", buf);
}
}
@ -1266,8 +1291,8 @@ static int pull(FILE *fp, SOCKET sock, SSL *ssl, char *buf, int len) {
}
int mg_read(struct mg_connection *conn, void *buf, size_t len) {
int n, buffered_data_len, nread;
const char *buffered_data;
int n, buffered_len, nread;
const char *buffered;
assert(conn->content_len >= conn->consumed_content);
DEBUG_TRACE(("%p %zu %lld %lld", buf, len,
@ -1283,21 +1308,21 @@ int mg_read(struct mg_connection *conn, void *buf, size_t len) {
}
// How many bytes of data we have buffered in the request buffer?
buffered_data = conn->buf + conn->request_len + conn->consumed_content;
buffered_data_len = conn->data_len - conn->request_len;
assert(buffered_data_len >= 0);
buffered = conn->buf + conn->request_len;
buffered_len = conn->data_len - conn->request_len;
assert(buffered_len >= 0);
// Return buffered data back if we haven't done that yet.
if (conn->consumed_content < (int64_t) buffered_data_len) {
buffered_data_len -= conn->consumed_content;
if (len < (size_t) buffered_data_len) {
buffered_data_len = len;
if (conn->consumed_content < (int64_t) buffered_len) {
buffered_len -= conn->consumed_content;
if (len < (size_t) buffered_len) {
buffered_len = len;
}
memcpy(buf, buffered_data, buffered_data_len);
len -= buffered_data_len;
buf = (char *) buf + buffered_data_len;
conn->consumed_content += buffered_data_len;
nread = buffered_data_len;
memcpy(buf, buffered, buffered_len);
len -= buffered_len;
buf = (char *) buf + buffered_len;
conn->consumed_content += buffered_len;
nread = buffered_len;
}
// We have returned all buffered data. Read new data from the remote socket.
@ -2449,11 +2474,11 @@ static void handle_file_request(struct mg_connection *conn, const char *path,
"Etag: \"%s\"\r\n"
"Content-Type: %.*s\r\n"
"Content-Length: %" INT64_FMT "\r\n"
"Connection: close\r\n"
"Connection: %s\r\n"
"Accept-Ranges: bytes\r\n"
"%s\r\n",
conn->request_info.status_code, msg, date, lm, etag,
mime_vec.len, mime_vec.ptr, cl, range);
mime_vec.len, mime_vec.ptr, cl, suggest_connection_header(conn), range);
if (strcmp(conn->request_info.request_method, "HEAD") != 0) {
send_file_data(conn, fp, cl);
@ -2487,6 +2512,11 @@ static int is_valid_http_method(const char *method) {
static int parse_http_request(char *buf, struct mg_request_info *ri) {
int status = 0;
// RFC says that all initial whitespaces should be ingored
while (*buf != '\0' && isspace(* (unsigned char *) buf)) {
buf++;
}
ri->request_method = skip(&buf, " ");
ri->uri = skip(&buf, " ");
ri->http_version = skip(&buf, "\r\n");
@ -2580,10 +2610,9 @@ static int is_not_modified(const struct mg_connection *conn,
}
static int handle_request_body(struct mg_connection *conn, FILE *fp) {
const char *expect, *data;
const char *expect, *buffered;
char buf[BUFSIZ];
int to_read, nread, data_len;
int success = 0;
int to_read, nread, buffered_len, success = 0;
expect = mg_get_header(conn, "Expect");
assert(fp != NULL);
@ -2596,31 +2625,34 @@ static int handle_request_body(struct mg_connection *conn, FILE *fp) {
if (expect != NULL) {
(void) mg_printf(conn, "%s", "HTTP/1.1 100 Continue\r\n\r\n");
}
data = conn->buf + conn->request_len;
data_len = conn->data_len - conn->request_len;
assert(data_len >= 0);
if (conn->content_len <= (int64_t) data_len) {
success = push(fp, INVALID_SOCKET, NULL, data,
conn->content_len) == conn->content_len;
} else {
push(fp, INVALID_SOCKET, NULL, data, (int64_t) data_len);
conn->consumed_content += data_len;
buffered = conn->buf + conn->request_len;
buffered_len = conn->data_len - conn->request_len;
assert(buffered_len >= 0);
assert(conn->consumed_content == 0);
while (conn->consumed_content < conn->content_len) {
to_read = sizeof(buf);
if ((int64_t) to_read > conn->content_len - conn->consumed_content) {
to_read = (int) (conn->content_len - conn->consumed_content);
}
nread = pull(NULL, conn->client.sock, conn->ssl, buf, to_read);
if (nread <= 0 || push(fp, INVALID_SOCKET, NULL, buf, nread) != nread) {
break;
}
conn->consumed_content += nread;
if (buffered_len > 0) {
if ((int64_t) buffered_len > conn->content_len) {
buffered_len = conn->content_len;
}
if (conn->consumed_content == conn->content_len) {
success = 1;
push(fp, INVALID_SOCKET, NULL, buffered, (int64_t) buffered_len);
conn->consumed_content += buffered_len;
}
while (conn->consumed_content < conn->content_len) {
to_read = sizeof(buf);
if ((int64_t) to_read > conn->content_len - conn->consumed_content) {
to_read = (int) (conn->content_len - conn->consumed_content);
}
nread = pull(NULL, conn->client.sock, conn->ssl, buf, to_read);
if (nread <= 0 || push(fp, INVALID_SOCKET, NULL, buf, nread) != nread) {
break;
}
conn->consumed_content += nread;
}
if (conn->consumed_content == conn->content_len) {
success = 1;
}
// Each error code path in this function must send an error
@ -3088,8 +3120,9 @@ static void handle_ssi_file_request(struct mg_connection *conn,
strerror(ERRNO));
} else {
set_close_on_exec(fileno(fp));
(void) mg_printf(conn, "%s", "HTTP/1.1 200 OK\r\n"
"Content-Type: text/html\r\nConnection: close\r\n\r\n");
mg_printf(conn, "HTTP/1.1 200 OK\r\n"
"Content-Type: text/html\r\nConnection: %s\r\n\r\n",
suggest_connection_header(conn));
send_ssi_file(conn, path, fp, 0);
(void) fclose(fp);
}
@ -3505,17 +3538,19 @@ static void close_connection(struct mg_connection *conn) {
}
static void discard_current_request_from_buffer(struct mg_connection *conn) {
int over_len, body_len;
char *buffered;
int buffered_len, body_len;
over_len = conn->data_len - conn->request_len;
assert(over_len >= 0);
buffered = conn->buf + conn->request_len;
buffered_len = conn->data_len - conn->request_len;
assert(buffered_len >= 0);
if (conn->content_len == -1) {
body_len = 0;
} else if (conn->content_len < (int64_t) over_len) {
} else if (conn->content_len < (int64_t) buffered_len) {
body_len = (int) conn->content_len;
} else {
body_len = over_len;
body_len = buffered_len;
}
conn->data_len -= conn->request_len + body_len;
@ -3524,40 +3559,45 @@ static void discard_current_request_from_buffer(struct mg_connection *conn) {
static void process_new_connection(struct mg_connection *conn) {
struct mg_request_info *ri = &conn->request_info;
int keep_alive_enabled;
const char *cl;
reset_per_request_attributes(conn);
keep_alive_enabled = !strcmp(conn->ctx->config[ENABLE_KEEP_ALIVE], "yes");
// If next request is not pipelined, read it in
if ((conn->request_len = get_request_len(conn->buf, conn->data_len)) == 0) {
conn->request_len = read_request(NULL, conn->client.sock, conn->ssl,
conn->buf, sizeof(conn->buf), &conn->data_len);
}
assert(conn->data_len >= conn->request_len);
if (conn->request_len <= 0) {
return; // Remote end closed the connection
}
do {
reset_per_request_attributes(conn);
// Nul-terminate the request cause parse_http_request() uses sscanf
conn->buf[conn->request_len - 1] = '\0';
if (!parse_http_request(conn->buf, ri)) {
// Do not put garbage in the access log, just send it back to the client
send_http_error(conn, 400, "Bad Request",
"Cannot parse HTTP request: [%.*s]", conn->data_len, conn->buf);
} else if (strcmp(ri->http_version, "1.0") &&
strcmp(ri->http_version, "1.1")) {
// Request seems valid, but HTTP version is strange
send_http_error(conn, 505, "HTTP version not supported", "");
log_access(conn);
} else {
// Request is valid, handle it
cl = get_header(ri, "Content-Length");
conn->content_len = cl == NULL ? -1 : strtoll(cl, NULL, 10);
conn->birth_time = time(NULL);
handle_request(conn);
log_access(conn);
discard_current_request_from_buffer(conn);
}
// If next request is not pipelined, read it in
if ((conn->request_len = get_request_len(conn->buf, conn->data_len)) == 0) {
conn->request_len = read_request(NULL, conn->client.sock, conn->ssl,
conn->buf, sizeof(conn->buf), &conn->data_len);
}
assert(conn->data_len >= conn->request_len);
if (conn->request_len <= 0) {
return; // Remote end closed the connection
}
// Nul-terminate the request cause parse_http_request() uses sscanf
conn->buf[conn->request_len - 1] = '\0';
if (!parse_http_request(conn->buf, ri)) {
// Do not put garbage in the access log, just send it back to the client
send_http_error(conn, 400, "Bad Request",
"Cannot parse HTTP request: [%.*s]", conn->data_len, conn->buf);
} else if (strcmp(ri->http_version, "1.0") &&
strcmp(ri->http_version, "1.1")) {
// Request seems valid, but HTTP version is strange
send_http_error(conn, 505, "HTTP version not supported", "");
log_access(conn);
} else {
// Request is valid, handle it
cl = get_header(ri, "Content-Length");
conn->content_len = cl == NULL ? -1 : strtoll(cl, NULL, 10);
conn->birth_time = time(NULL);
handle_request(conn);
log_access(conn);
discard_current_request_from_buffer(conn);
}
} while (keep_alive_enabled && should_keep_alive(conn));
}
// Worker threads take accepted socket from the queue
@ -3788,15 +3828,6 @@ struct mg_context *mg_start(mg_callback_t user_callback, const char **options) {
ctx = calloc(1, sizeof(*ctx));
ctx->user_callback = user_callback;
ctx->config[DOCUMENT_ROOT] = mg_strdup(".");
ctx->config[LISTENING_PORTS] = mg_strdup("8080");
ctx->config[ENABLE_DIRECTORY_LISTING] = mg_strdup("yes");
ctx->config[AUTHENTICATION_DOMAIN] = mg_strdup("mydomain.com");
ctx->config[INDEX_FILES] = mg_strdup("index.html,index.htm,index.cgi");
ctx->config[CGI_EXTENSIONS] = mg_strdup(".cgi,.pl,.php");
ctx->config[SSI_EXTENSIONS] = mg_strdup(".shtml,.shtm");
ctx->config[NUM_THREADS] = mg_strdup("10");
while ((name = *options++) != NULL) {
if ((i = get_option_index(name)) == -1) {
cry(fc(ctx), "Invalid option: %s", name);
@ -3807,13 +3838,19 @@ struct mg_context *mg_start(mg_callback_t user_callback, const char **options) {
free_context(ctx);
return NULL;
}
if (ctx->config[i] != NULL) {
free(ctx->config[i]);
}
ctx->config[i] = mg_strdup(value);
DEBUG_TRACE(("[%s] -> [%s]", name, value));
}
// Set default value if needed
for (i = 0; config_options[i * 3] != NULL; i++) {
if (ctx->config[i] == NULL && config_options[i * 3 + 2] != NULL) {
ctx->config[i] = mg_strdup(config_options[i * 3 + 2]);
DEBUG_TRACE(("Setting default: [%s] -> [%s]",
config_options[i * 3 + 1], config_options[i * 3 + 2]));
}
}
// NOTE(lsm): order is important here. SSL certificates must
// be initialized before listening ports. UID must be set last.
if (!set_ssl_option(ctx) ||

5
mongoose.h
View File

@ -118,8 +118,9 @@ void mg_stop(struct mg_context *);
const char *mg_get_option(const struct mg_context *ctx, const char *name);
// Return array of valid configuration options. For each option, a short
// version and a long version is returned. Array is NULL terminated.
// Return array of strings that represent valid configuration options.
// For each option, a short name, long name, and default value is returned.
// Array is NULL terminated.
const char **mg_get_valid_option_names(void);

3
test/test.pl
View File

@ -211,6 +211,9 @@ o("GET /$test_dir_uri/x/ HTTP/1.0\n\n", "Content-Type: text/html\r\n\r\n",
'index.cgi execution');
o("GET /ta/x/ HTTP/1.0\n\n", "SCRIPT_NAME=/ta/x/index.cgi",
'Aliases SCRIPT_NAME');
#o("GET /hello.txt HTTP/1.1\n\n GET /hello.txt HTTP/1.0\n\n",
# 'HTTP/1.1 200.+keep-alive.+HTTP/1.1 200.+close',
# 'Request pipelining', 2);
my $mime_types = {
html => 'text/html',