static int create_spawnproc(h2o_configurator_command_t *cmd, yoml_t *node, const char *dirname, char *const *argv,
struct sockaddr_un *sa)
{
int listen_fd, pipe_fds[2] = {-1, -1};
/* build socket path */
sa->sun_family = AF_UNIX;
strcpy(sa->sun_path, dirname);
strcat(sa->sun_path, "/_");
/* create socket */
if ((listen_fd = socket(AF_UNIX, SOCK_STREAM, 0)) == -1) {
h2o_configurator_errprintf(cmd, node, "socket(2) failed: %s", strerror(errno));
goto Error;
}
if (bind(listen_fd, (void *)sa, sizeof(*sa)) != 0) {
h2o_configurator_errprintf(cmd, node, "bind(2) failed: %s", strerror(errno));
goto Error;
}
if (listen(listen_fd, SOMAXCONN) != 0) {
h2o_configurator_errprintf(cmd, node, "listen(2) failed: %s", strerror(errno));
goto Error;
}
/* create pipe which is used to notify the termination of the server */
if (pipe(pipe_fds) != 0) {
h2o_configurator_errprintf(cmd, node, "pipe(2) failed: %s", strerror(errno));
pipe_fds[0] = -1;
pipe_fds[1] = -1;
goto Error;
}
fcntl(pipe_fds[1], F_SETFD, FD_CLOEXEC);
/* spawn */
int mapped_fds[] = {listen_fd, 0, /* listen_fd to 0 */
pipe_fds[0], 5, /* pipe_fds[0] to 5 */
-1};
pid_t pid = h2o_spawnp(argv[0], argv, mapped_fds, 0);
if (pid == -1) {
fprintf(stderr, "[lib/handler/fastcgi.c] failed to launch helper program %s:%s\n", argv[0], strerror(errno));
goto Error;
}
close(listen_fd);
listen_fd = -1;
close(pipe_fds[0]);
pipe_fds[0] = -1;
return pipe_fds[1];
Error:
if (pipe_fds[0] != -1)
close(pipe_fds[0]);
if (pipe_fds[1])
close(pipe_fds[1]);
if (listen_fd != -1)
close(listen_fd);
unlink(sa->sun_path);
return -1;
}
static int on_config_hosts(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
{
size_t i;
if (node->data.mapping.size == 0) {
h2o_configurator_errprintf(cmd, node, "the mapping cannot be empty");
return -1;
}
for (i = 0; i != node->data.mapping.size; ++i) {
yoml_t *key = node->data.mapping.elements[i].key;
yoml_t *value = node->data.mapping.elements[i].value;
h2o_iovec_t hostname;
uint16_t port;
if (key->type != YOML_TYPE_SCALAR) {
h2o_configurator_errprintf(cmd, key, "key (representing the hostname) must be a string");
return -1;
}
if (h2o_url_parse_hostport(key->data.scalar, strlen(key->data.scalar), &hostname, &port) == NULL) {
h2o_configurator_errprintf(cmd, key, "invalid key (must be either `host` or `host:port`)");
return -1;
}
ctx->hostconf = h2o_config_register_host(ctx->globalconf, hostname, port);
if (h2o_configurator_apply_commands(ctx, value, H2O_CONFIGURATOR_FLAG_HOST, NULL) != 0)
return -1;
if (yoml_get(value, "paths") == NULL) {
h2o_configurator_errprintf(NULL, value, "mandatory configuration directive `paths` is missing");
return -1;
}
ctx->hostconf = NULL;
}
return 0;
}
static int assert_is_extension(h2o_configurator_command_t *cmd, yoml_t *node)
{
if (node->type != YOML_TYPE_SCALAR) {
h2o_configurator_errprintf(cmd, node, "expected a scalar (extension)");
return -1;
}
if (node->data.scalar[0] != '.') {
h2o_configurator_errprintf(cmd, node, "given extension \"%s\" does not start with a \".\"", node->data.scalar);
return -1;
}
return 0;
}
static int assert_is_mimetype(h2o_configurator_command_t *cmd, yoml_t *node)
{
if (node->type != YOML_TYPE_SCALAR) {
h2o_configurator_errprintf(cmd, node, "expected a scalar (mime-type)");
return -1;
}
if (strchr(node->data.scalar, '/') == NULL) {
h2o_configurator_errprintf(cmd, node, "the string \"%s\" does not look like a mime-type", node->data.scalar);
return -1;
}
return 0;
}
static int on_config_paths(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
{
size_t i;
/* sort by the length of the path (descending) */
for (i = 0; i != node->data.mapping.size; ++i) {
yoml_t *key = node->data.mapping.elements[i].key;
if (key->type != YOML_TYPE_SCALAR) {
h2o_configurator_errprintf(cmd, key, "key (representing the virtual path) must be a string");
return -1;
}
}
qsort(node->data.mapping.elements, node->data.mapping.size, sizeof(node->data.mapping.elements[0]),
(void *)sort_from_longer_paths);
for (i = 0; i != node->data.mapping.size; ++i) {
yoml_t *key = node->data.mapping.elements[i].key;
yoml_t *value = node->data.mapping.elements[i].value;
ctx->pathconf = h2o_config_register_path(ctx->hostconf, key->data.scalar);
if (h2o_configurator_apply_commands(ctx, value, H2O_CONFIGURATOR_FLAG_PATH, NULL) != 0)
return -1;
ctx->pathconf = NULL;
}
return 0;
}
ssize_t h2o_configurator_get_one_of(h2o_configurator_command_t *cmd, yoml_t *node, const char *candidates)
{
const char *config_str, *cand_str;
ssize_t config_str_len, cand_index;
if (node->type != YOML_TYPE_SCALAR)
goto Error;
config_str = node->data.scalar;
config_str_len = strlen(config_str);
cand_str = candidates;
for (cand_index = 0;; ++cand_index) {
if (strncasecmp(cand_str, config_str, config_str_len) == 0 &&
(cand_str[config_str_len] == '\0' || cand_str[config_str_len] == ',')) {
/* found */
return cand_index;
}
cand_str = strchr(cand_str, ',');
if (cand_str == NULL)
goto Error;
cand_str += 1; /* skip ',' */
}
/* not reached */
Error:
h2o_configurator_errprintf(cmd, node, "argument must be one of: %s", candidates);
return -1;
}
static int on_config_spawn(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
{
struct fastcgi_configurator_t *self = (void *)cmd->configurator;
char dirname[] = "/tmp/h2o.fcgisock.XXXXXX";
char *argv[] = {h2o_configurator_get_cmd_path("share/h2o/kill-on-close"), "--rm", dirname, "--", "/bin/sh", "-c",
node->data.scalar, NULL};
int spawner_fd;
struct sockaddr_un sun = {};
h2o_fastcgi_config_vars_t config_vars;
int ret = -1;
/* create temporary directory */
if (mkdtemp(dirname) == NULL) {
h2o_configurator_errprintf(cmd, node, "mkdtemp(3) failed to create temporary directory:%s:%s", dirname, strerror(errno));
dirname[0] = '\0';
goto Exit;
}
/* launch spawnfcgi command */
if ((spawner_fd = create_spawnproc(cmd, node, dirname, argv, &sun)) == -1) {
goto Exit;
}
config_vars = *self->vars;
config_vars.callbacks.dispose = spawnproc_on_dispose;
config_vars.callbacks.data = (char *)NULL + spawner_fd;
h2o_fastcgi_register_by_address(ctx->pathconf, (void *)&sun, sizeof(sun), &config_vars);
ret = 0;
Exit:
if (dirname[0] != '\0')
unlink(dirname);
free(argv[0]);
return ret;
}
static int on_config_mruby_handler_file(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
{
struct mruby_configurator_t *self = (void *)cmd->configurator;
FILE *fp = NULL;
h2o_iovec_t buf = {};
int ret = -1;
/* open and read file */
if ((fp = fopen(node->data.scalar, "rt")) == NULL) {
h2o_configurator_errprintf(cmd, node, "failed to open file: %s:%s", node->data.scalar, strerror(errno));
goto Exit;
}
while (!feof(fp)) {
buf.base = h2o_mem_realloc(buf.base, buf.len + 65536);
buf.len += fread(buf.base + buf.len, 1, 65536, fp);
if (ferror(fp)) {
h2o_configurator_errprintf(cmd, node, "I/O error occurred while reading file:%s:%s", node->data.scalar,
strerror(errno));
goto Exit;
}
}
/* set source */
self->vars->source = buf;
buf.base = NULL;
self->vars->path = node->data.scalar; /* the value is retained until the end of the configuration phase */
self->vars->lineno = 0;
/* check if there is any error in source */
char errbuf[1024];
if (!compile_test(self->vars, errbuf)) {
h2o_configurator_errprintf(cmd, node, "failed to compile file:%s:%s", node->data.scalar, errbuf);
goto Exit;
}
/* register */
h2o_mruby_register(ctx->pathconf, self->vars);
ret = 0;
Exit:
if (fp != NULL)
fclose(fp);
if (buf.base != NULL)
free(buf.base);
return ret;
}
static int on_config(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, const char *file, yoml_t *node)
{
struct st_h2o_access_log_configurator_t *self = (void*)cmd->configurator;
const char *path, *fmt = NULL;
h2o_access_log_filehandle_t *fh;
switch (node->type) {
case YOML_TYPE_SCALAR:
path = node->data.scalar;
break;
case YOML_TYPE_MAPPING:
{
yoml_t *t;
/* get path */
if ((t = yoml_get(node, "path")) == NULL) {
h2o_configurator_errprintf(cmd, file, node, "could not find mandatory key `path`");
return -1;
}
if (t->type != YOML_TYPE_SCALAR) {
h2o_configurator_errprintf(cmd, file, t, "`path` must be scalar");
return -1;
}
path = t->data.scalar;
/* get format */
if ((t = yoml_get(node, "format")) != NULL) {
if (t->type != YOML_TYPE_SCALAR) {
h2o_configurator_errprintf(cmd, file, t, "`format` must be a scalar");
return -1;
}
fmt = t->data.scalar;
}
}
break;
default:
h2o_configurator_errprintf(cmd, file, node, "node must be a scalar or a mapping");
return -1;
}
if ((fh = h2o_access_log_open_handle(path, fmt)) == NULL)
return -1;
h2o_vector_reserve(NULL, (h2o_vector_t*)self->handles, sizeof(self->handles->entries[0]), self->handles->size + 1);
self->handles->entries[self->handles->size++] = fh;
return 0;
}
static int on_config_header_2arg(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, int cmd_id, yoml_t *node)
{
h2o_iovec_t *name, value;
if (extract_name_value(node->data.scalar, &name, &value) != 0) {
h2o_configurator_errprintf(cmd, node, "failed to parse the value; should be in form of `name: value`");
return -1;
}
if (add_cmd(cmd, node, cmd_id, name, value) != 0)
return -1;
return 0;
}
static int on_config_header_unset(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
{
h2o_iovec_t *name;
if (extract_name(node->data.scalar, strlen(node->data.scalar), &name) != 0) {
h2o_configurator_errprintf(cmd, node, "invalid header name");
return -1;
}
if (add_cmd(cmd, node, H2O_HEADERS_CMD_UNSET, name, (h2o_iovec_t){}) != 0)
return -1;
return 0;
}
static int on_config(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
{
const char *dest;
int status = 302; /* default is temporary redirect */
yoml_t *t;
switch (node->type) {
case YOML_TYPE_SCALAR:
dest = node->data.scalar;
break;
case YOML_TYPE_MAPPING:
if ((t = yoml_get(node, "url")) == NULL) {
h2o_configurator_errprintf(cmd, node, "mandatory property `url` is missing");
return -1;
}
if (t->type != YOML_TYPE_SCALAR) {
h2o_configurator_errprintf(cmd, t, "property `url` must be a string");
return -1;
}
dest = t->data.scalar;
if ((t = yoml_get(node, "status")) == NULL) {
h2o_configurator_errprintf(cmd, node, "mandatory property `status` is missing");
return -1;
}
if (h2o_configurator_scanf(cmd, t, "%d", &status) != 0)
return -1;
if (!(300 <= status && status <= 399)) {
h2o_configurator_errprintf(cmd, t, "value of property `status` should be within 300 to 399");
return -1;
}
break;
default:
h2o_configurator_errprintf(cmd, node, "value must be a string or a mapping");
return -1;
}
h2o_redirect_register(ctx->pathconf, status, dest);
return 0;
}
int h2o_configurator_apply(h2o_globalconf_t *config, yoml_t *node)
{
h2o_configurator_context_t ctx = {config};
if (h2o_configurator_apply_commands(&ctx, node, H2O_CONFIGURATOR_FLAG_GLOBAL, NULL) != 0)
return -1;
if (config->hosts[0] == NULL) {
h2o_configurator_errprintf(NULL, node, "mandatory configuration directive `hosts` is missing");
return -1;
}
return 0;
}
static int add_cmd(h2o_configurator_command_t *cmd, yoml_t *node, int cmd_id, h2o_iovec_t *name, h2o_iovec_t value)
{
struct headers_configurator_t *self = (void *)cmd->configurator;
if (h2o_iovec_is_token(name)) {
const h2o_token_t *token = (void *)name;
if (h2o_headers_is_prohibited_name(token)) {
h2o_configurator_errprintf(cmd, node, "the named header cannot be rewritten");
return -1;
}
}
h2o_vector_reserve(NULL, (h2o_vector_t *)self->cmds, sizeof(self->cmds->entries[0]), self->cmds->size + 1);
self->cmds->entries[self->cmds->size++] = (h2o_headers_command_t){cmd_id, name, value};
return 0;
}
static int on_config_document_root(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
{
struct fastcgi_configurator_t *self = (void *)cmd->configurator;
if (node->data.scalar[0] == '\0') {
/* unset */
self->vars->document_root = h2o_iovec_init(NULL, 0);
} else if (node->data.scalar[0] == '/') {
/* set */
self->vars->document_root = h2o_iovec_init(node->data.scalar, strlen(node->data.scalar));
} else {
h2o_configurator_errprintf(cmd, node, "value does not start from `/`");
return -1;
}
return 0;
}
int h2o_configurator_scanf(h2o_configurator_command_t *cmd, yoml_t *node, const char *fmt, ...)
{
va_list args;
int sscan_ret;
if (node->type != YOML_TYPE_SCALAR)
goto Error;
va_start(args, fmt);
sscan_ret = vsscanf(node->data.scalar, fmt, args);
va_end(args);
if (sscan_ret != 1)
goto Error;
return 0;
Error:
h2o_configurator_errprintf(cmd, node, "argument must match the format: %s", fmt);
return -1;
}
static int on_config_mruby_handler_path(h2o_configurator_command_t *cmd,
h2o_configurator_context_t *ctx, yoml_t *node)
{
struct mruby_configurator_t *self = (void *)cmd->configurator;
if (node->data.scalar[0] == '\0') {
self->vars->mruby_handler_path = h2o_iovec_init(NULL, 0);
} else if (node->data.scalar[0] == '/') {
self->vars->mruby_handler_path = h2o_iovec_init(node->data.scalar,
strlen(node->data.scalar));
h2o_mruby_register(ctx->pathconf, self->vars);
} else {
h2o_configurator_errprintf(cmd, node,
"mruby_handler_path must be absoluted path");
return -1;
}
return 0;
}
static int set_mimetypes(h2o_configurator_command_t *cmd, h2o_mimemap_t *mimemap, yoml_t *node)
{
size_t i, j;
h2o_mimemap_type_t *type = NULL;
assert(node->type == YOML_TYPE_MAPPING);
for (i = 0; i != node->data.mapping.size; ++i) {
yoml_t *key = node->data.mapping.elements[i].key;
yoml_t *value = node->data.mapping.elements[i].value;
if (assert_is_mimetype(cmd, key) != 0)
return -1;
type = h2o_mimemap_create_extension_type(key->data.scalar);
switch (value->type) {
case YOML_TYPE_SCALAR:
if (assert_is_extension(cmd, value) != 0)
goto Error;
h2o_mimemap_set_type(mimemap, value->data.scalar + 1, type, 1);
break;
case YOML_TYPE_SEQUENCE:
for (j = 0; j != value->data.sequence.size; ++j) {
yoml_t *ext_node = value->data.sequence.elements[j];
if (assert_is_extension(cmd, ext_node) != 0)
goto Error;
h2o_mimemap_set_type(mimemap, ext_node->data.scalar + 1, type, 1);
}
break;
default:
h2o_configurator_errprintf(cmd, value,
"only scalar or sequence of scalar is permitted at the value part of the argument");
goto Error;
}
h2o_mem_release_shared(type);
type = NULL;
}
return 0;
Error:
if (type != NULL)
h2o_mem_release_shared(type);
return -1;
}
static int on_config_index(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
{
struct st_h2o_file_configurator_t *self = (void *)cmd->configurator;
size_t i;
free(self->vars->index_files);
self->vars->index_files = h2o_mem_alloc(sizeof(self->vars->index_files[0]) * (node->data.sequence.size + 1));
for (i = 0; i != node->data.sequence.size; ++i) {
yoml_t *element = node->data.sequence.elements[i];
if (element->type != YOML_TYPE_SCALAR) {
h2o_configurator_errprintf(cmd, element, "argument must be a sequence of scalars");
return -1;
}
self->vars->index_files[i] = element->data.scalar;
}
self->vars->index_files[i] = NULL;
return 0;
}
static int on_config_mruby_handler(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
{
struct mruby_configurator_t *self = (void *)cmd->configurator;
/* set source */
self->vars->source = h2o_strdup(NULL, node->data.scalar, SIZE_MAX);
self->vars->path = node->filename;
self->vars->lineno = (int)node->line;
/* check if there is any error in source */
char errbuf[1024];
if (!compile_test(self->vars, errbuf)) {
h2o_configurator_errprintf(cmd, node, "ruby compile error:%s", errbuf);
return -1;
}
/* register */
h2o_mruby_register(ctx->pathconf, self->vars);
return 0;
}
static int on_config_connect(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
{
struct fastcgi_configurator_t *self = (void *)cmd->configurator;
const char *hostname = "127.0.0.1", *servname = NULL, *type = "tcp";
/* fetch servname (and hostname) */
switch (node->type) {
case YOML_TYPE_SCALAR:
servname = node->data.scalar;
break;
case YOML_TYPE_MAPPING: {
yoml_t *t;
if ((t = yoml_get(node, "host")) != NULL) {
if (t->type != YOML_TYPE_SCALAR) {
h2o_configurator_errprintf(cmd, t, "`host` is not a string");
return -1;
}
hostname = t->data.scalar;
}
if ((t = yoml_get(node, "port")) == NULL) {
h2o_configurator_errprintf(cmd, node, "cannot find mandatory property `port`");
return -1;
}
if (t->type != YOML_TYPE_SCALAR) {
h2o_configurator_errprintf(cmd, node, "`port` is not a string");
return -1;
}
servname = t->data.scalar;
if ((t = yoml_get(node, "type")) != NULL) {
if (t->type != YOML_TYPE_SCALAR) {
h2o_configurator_errprintf(cmd, t, "`type` is not a string");
return -1;
}
type = t->data.scalar;
}
} break;
default:
h2o_configurator_errprintf(cmd, node,
"value must be a string or a mapping (with keys: `port` and optionally `host` and `type`)");
return -1;
}
if (strcmp(type, "unix") == 0) {
/* unix socket */
struct sockaddr_un sa = {};
if (strlen(servname) >= sizeof(sa.sun_path)) {
h2o_configurator_errprintf(cmd, node, "path:%s is too long as a unix socket name", servname);
return -1;
}
sa.sun_family = AF_UNIX;
strcpy(sa.sun_path, servname);
h2o_fastcgi_register_by_address(ctx->pathconf, (void *)&sa, sizeof(sa), self->vars);
} else if (strcmp(type, "tcp") == 0) {
/* tcp socket */
uint16_t port;
if (sscanf(servname, "%" SCNu16, &port) != 1) {
h2o_configurator_errprintf(cmd, node, "invalid port number:%s", servname);
return -1;
}
h2o_fastcgi_register_by_hostport(ctx->pathconf, hostname, port, self->vars);
} else {
h2o_configurator_errprintf(cmd, node, "unknown listen type: %s", type);
return -1;
}
return 0;
}
int h2o_configurator_apply_commands(h2o_configurator_context_t *ctx, yoml_t *node, int flags_mask, const char **ignore_commands)
{
struct {
h2o_configurator_command_t *cmd;
yoml_t *value;
} *deferred;
size_t num_deferred = 0, i;
if (node->type != YOML_TYPE_MAPPING) {
h2o_configurator_errprintf(NULL, node, "node must be a MAPPING");
return -1;
}
deferred = alloca(sizeof(*deferred) * node->data.mapping.size);
/* call on_enter of every configurator */
if (setup_configurators(ctx, 1, node) != 0)
return -1;
/* handle the configuration commands */
for (i = 0; i != node->data.mapping.size; ++i) {
yoml_t *key = node->data.mapping.elements[i].key, *value = node->data.mapping.elements[i].value;
h2o_configurator_command_t *cmd;
/* obtain the target command */
if (key->type != YOML_TYPE_SCALAR) {
h2o_configurator_errprintf(NULL, key, "command must be a string");
return -1;
}
if (ignore_commands != NULL) {
size_t i;
for (i = 0; ignore_commands[i] != NULL; ++i)
if (strcmp(ignore_commands[i], key->data.scalar) == 0)
goto SkipCommand;
}
if ((cmd = h2o_configurator_get_command(ctx->globalconf, key->data.scalar)) == NULL) {
h2o_configurator_errprintf(NULL, key, "unknown command: %s", key->data.scalar);
return -1;
}
if ((cmd->flags & flags_mask) == 0) {
h2o_configurator_errprintf(cmd, key, "the command cannot be used at this level");
return -1;
}
/* check value type */
if ((cmd->flags & (H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR | H2O_CONFIGURATOR_FLAG_EXPECT_SEQUENCE |
H2O_CONFIGURATOR_FLAG_EXPECT_MAPPING)) != 0) {
switch (value->type) {
case YOML_TYPE_SCALAR:
if ((cmd->flags & H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR) == 0) {
h2o_configurator_errprintf(cmd, value, "argument cannot be a scalar");
return -1;
}
break;
case YOML_TYPE_SEQUENCE:
if ((cmd->flags & H2O_CONFIGURATOR_FLAG_EXPECT_SEQUENCE) == 0) {
h2o_configurator_errprintf(cmd, value, "argument cannot be a sequence");
return -1;
}
break;
case YOML_TYPE_MAPPING:
if ((cmd->flags & H2O_CONFIGURATOR_FLAG_EXPECT_MAPPING) == 0) {
h2o_configurator_errprintf(cmd, value, "argument cannot be a mapping");
return -1;
}
break;
default:
assert(!"unreachable");
break;
}
}
/* handle the command (or keep it for later execution) */
if ((cmd->flags & H2O_CONFIGURATOR_FLAG_DEFERRED) != 0) {
deferred[num_deferred].cmd = cmd;
deferred[num_deferred].value = value;
++num_deferred;
} else {
if (cmd->cb(cmd, ctx, value) != 0)
return -1;
}
SkipCommand:
;
}
for (i = 0; i != num_deferred; ++i) {
if (deferred[i].cmd->cb(deferred[i].cmd, ctx, deferred[i].value) != 0)
return -1;
}
/* call on_enter of every configurator */
if (setup_configurators(ctx, 0, node) != 0)
return -1;
return 0;
}
static int on_config_spawn(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
{
struct fastcgi_configurator_t *self = (void *)cmd->configurator;
char *spawn_user = NULL, *spawn_cmd;
char dirname[] = "/tmp/h2o.fcgisock.XXXXXX";
char *argv[10];
int spawner_fd;
struct sockaddr_un sa = {};
h2o_fastcgi_config_vars_t config_vars;
int ret = -1;
switch (node->type) {
case YOML_TYPE_SCALAR:
spawn_user = ctx->globalconf->user;
spawn_cmd = node->data.scalar;
break;
case YOML_TYPE_MAPPING: {
yoml_t *t;
if ((t = yoml_get(node, "command")) == NULL) {
h2o_configurator_errprintf(cmd, node, "mandatory attribute `command` does not exist");
return -1;
}
if (t->type != YOML_TYPE_SCALAR) {
h2o_configurator_errprintf(cmd, node, "attribute `command` must be scalar");
return -1;
}
spawn_cmd = t->data.scalar;
if ((t = yoml_get(node, "user")) != NULL) {
if (t->type != YOML_TYPE_SCALAR) {
h2o_configurator_errprintf(cmd, node, "attribute `user` must be scalar");
return -1;
}
spawn_user = t->data.scalar;
}
} break;
default:
h2o_configurator_errprintf(cmd, node, "argument must be scalar or mapping");
return -1;
}
{ /* build args */
size_t i = 0;
argv[i++] = h2o_configurator_get_cmd_path("share/h2o/kill-on-close");
argv[i++] = "--rm";
argv[i++] = dirname;
argv[i++] = "--";
if (spawn_user != NULL) {
argv[i++] = h2o_configurator_get_cmd_path("share/h2o/setuidgid");
argv[i++] = spawn_user;
}
argv[i++] = "/bin/sh";
argv[i++] = "-c";
argv[i++] = spawn_cmd;
argv[i++] = NULL;
assert(i <= sizeof(argv) / sizeof(argv[0]));
}
if (ctx->dry_run) {
dirname[0] = '\0';
spawner_fd = -1;
sa.sun_family = AF_UNIX;
strcpy(sa.sun_path, "/dry-run.nonexistent");
} else {
/* create temporary directory */
if (mkdtemp(dirname) == NULL) {
h2o_configurator_errprintf(cmd, node, "mkdtemp(3) failed to create temporary directory:%s:%s", dirname,
strerror(errno));
dirname[0] = '\0';
goto Exit;
}
/* launch spawnfcgi command */
if ((spawner_fd = create_spawnproc(cmd, node, dirname, argv, &sa)) == -1) {
goto Exit;
}
}
config_vars = *self->vars;
config_vars.callbacks.dispose = spawnproc_on_dispose;
config_vars.callbacks.data = (char *)NULL + spawner_fd;
h2o_fastcgi_register_by_address(ctx->pathconf, (void *)&sa, sizeof(sa), &config_vars);
ret = 0;
Exit:
if (dirname[0] != '\0')
unlink(dirname);
free(argv[0]);
return ret;
}
static int on_config_spawn(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
{
struct fastcgi_configurator_t *self = (void *)cmd->configurator;
char *spawn_user = NULL, *spawn_cmd;
char *kill_on_close_cmd_path = NULL, *setuidgid_cmd_path = NULL;
char dirname[] = "/tmp/h2o.fcgisock.XXXXXX";
char *argv[10];
int spawner_fd;
struct sockaddr_un sa;
h2o_fastcgi_config_vars_t config_vars;
int ret = -1;
struct passwd h2o_user_pwbuf, *h2o_user_pw;
char h2o_user_buf[65536];
memset(&sa, 0, sizeof(sa));
switch (node->type) {
case YOML_TYPE_SCALAR:
spawn_user = ctx->globalconf->user;
spawn_cmd = node->data.scalar;
break;
case YOML_TYPE_MAPPING: {
yoml_t *t;
if ((t = yoml_get(node, "command")) == NULL) {
h2o_configurator_errprintf(cmd, node, "mandatory attribute `command` does not exist");
return -1;
}
if (t->type != YOML_TYPE_SCALAR) {
h2o_configurator_errprintf(cmd, node, "attribute `command` must be scalar");
return -1;
}
spawn_cmd = t->data.scalar;
spawn_user = ctx->globalconf->user;
if ((t = yoml_get(node, "user")) != NULL) {
if (t->type != YOML_TYPE_SCALAR) {
h2o_configurator_errprintf(cmd, node, "attribute `user` must be scalar");
return -1;
}
spawn_user = t->data.scalar;
}
} break;
default:
h2o_configurator_errprintf(cmd, node, "argument must be scalar or mapping");
return -1;
}
/* obtain uid & gid of the client that connects to the FastCGI daemon (i.e. H2O after dropping privileges) */
if (ctx->globalconf->user != NULL) {
/* change ownership of temporary directory */
if (getpwnam_r(ctx->globalconf->user, &h2o_user_pwbuf, h2o_user_buf, sizeof(h2o_user_buf), &h2o_user_pw) != 0 ||
h2o_user_pw == NULL) {
h2o_configurator_errprintf(cmd, node, "getpwnam_r(3) failed to obtain uid of user:%s", ctx->globalconf->user);
goto Exit;
}
} else {
h2o_user_pw = NULL;
}
{ /* build args */
size_t i = 0;
argv[i++] = kill_on_close_cmd_path = h2o_configurator_get_cmd_path("share/h2o/kill-on-close");
argv[i++] = "--rm";
argv[i++] = dirname;
argv[i++] = "--";
if (spawn_user != NULL) {
argv[i++] = setuidgid_cmd_path = h2o_configurator_get_cmd_path("share/h2o/setuidgid");
argv[i++] = spawn_user;
}
argv[i++] = "/bin/sh";
argv[i++] = "-c";
argv[i++] = spawn_cmd;
argv[i++] = NULL;
assert(i <= sizeof(argv) / sizeof(argv[0]));
}
if (ctx->dry_run) {
dirname[0] = '\0';
spawner_fd = -1;
sa.sun_family = AF_UNIX;
strcpy(sa.sun_path, "/dry-run.nonexistent");
} else {
/* create temporary directory */
if (mkdtemp(dirname) == NULL) {
h2o_configurator_errprintf(cmd, node, "mkdtemp(3) failed to create temporary directory:%s:%s", dirname,
strerror(errno));
dirname[0] = '\0';
goto Exit;
}
/* change ownership of temporary directory */
if (h2o_user_pw != NULL && chown(dirname, h2o_user_pw->pw_uid, h2o_user_pw->pw_gid) != 0) {
h2o_configurator_errprintf(cmd, node, "chown(2) failed to change ownership of temporary directory:%s:%s", dirname,
strerror(errno));
goto Exit;
}
/* launch spawnfcgi command */
if ((spawner_fd = create_spawnproc(cmd, node, dirname, argv, &sa, h2o_user_pw)) == -1) {
goto Exit;
}
}
config_vars = *self->vars;
config_vars.callbacks.dispose = spawnproc_on_dispose;
config_vars.callbacks.data = (char *)NULL + spawner_fd;
h2o_fastcgi_register_by_address(ctx->pathconf, (void *)&sa, sizeof(sa), &config_vars);
ret = 0;
Exit:
if (dirname[0] != '\0')
unlink(dirname);
free(kill_on_close_cmd_path);
free(setuidgid_cmd_path);
return ret;
}
int h2o_configurator_apply_commands(h2o_configurator_context_t *ctx, yoml_t *node, int flags_mask, const char **ignore_commands)
{
struct st_cmd_value_t {
h2o_configurator_command_t *cmd;
yoml_t *value;
};
H2O_VECTOR(struct st_cmd_value_t) deferred = {}, semi_deferred = {};
size_t i;
int ret = -1;
if (node->type != YOML_TYPE_MAPPING) {
h2o_configurator_errprintf(NULL, node, "node must be a MAPPING");
goto Exit;
}
/* call on_enter of every configurator */
if (setup_configurators(ctx, 1, node) != 0)
goto Exit;
/* handle the configuration commands */
for (i = 0; i != node->data.mapping.size; ++i) {
yoml_t *key = node->data.mapping.elements[i].key, *value = node->data.mapping.elements[i].value;
h2o_configurator_command_t *cmd;
/* obtain the target command */
if (key->type != YOML_TYPE_SCALAR) {
h2o_configurator_errprintf(NULL, key, "command must be a string");
goto Exit;
}
if (ignore_commands != NULL) {
size_t i;
for (i = 0; ignore_commands[i] != NULL; ++i)
if (strcmp(ignore_commands[i], key->data.scalar) == 0)
goto SkipCommand;
}
if ((cmd = h2o_configurator_get_command(ctx->globalconf, key->data.scalar)) == NULL) {
h2o_configurator_errprintf(NULL, key, "unknown command: %s", key->data.scalar);
goto Exit;
}
if ((cmd->flags & flags_mask) == 0) {
h2o_configurator_errprintf(cmd, key, "the command cannot be used at this level");
goto Exit;
}
/* check value type */
if ((cmd->flags & (H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR | H2O_CONFIGURATOR_FLAG_EXPECT_SEQUENCE |
H2O_CONFIGURATOR_FLAG_EXPECT_MAPPING)) != 0) {
switch (value->type) {
case YOML_TYPE_SCALAR:
if ((cmd->flags & H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR) == 0) {
h2o_configurator_errprintf(cmd, value, "argument cannot be a scalar");
goto Exit;
}
break;
case YOML_TYPE_SEQUENCE:
if ((cmd->flags & H2O_CONFIGURATOR_FLAG_EXPECT_SEQUENCE) == 0) {
h2o_configurator_errprintf(cmd, value, "argument cannot be a sequence");
goto Exit;
}
break;
case YOML_TYPE_MAPPING:
if ((cmd->flags & H2O_CONFIGURATOR_FLAG_EXPECT_MAPPING) == 0) {
h2o_configurator_errprintf(cmd, value, "argument cannot be a mapping");
goto Exit;
}
break;
default:
assert(!"unreachable");
break;
}
}
/* handle the command (or keep it for later execution) */
if ((cmd->flags & H2O_CONFIGURATOR_FLAG_SEMI_DEFERRED) != 0) {
h2o_vector_push_back(NULL, &semi_deferred, ((struct st_cmd_value_t){cmd, value}));
} else if ((cmd->flags & H2O_CONFIGURATOR_FLAG_DEFERRED) != 0) {
static int on_config_custom_handler(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
{
static const char *ignore_commands[] = {"extension", NULL};
struct st_h2o_file_configurator_t *self = (void *)cmd->configurator;
h2o_pathconf_t *prev_pathconf = ctx->pathconf;
yoml_t *ext_node;
h2o_mimemap_type_t *type = NULL;
int ret = -1;
if (node->type != YOML_TYPE_MAPPING) {
h2o_configurator_errprintf(cmd, node, "argument must be a MAPPING");
goto Exit;
}
if ((ext_node = yoml_get(node, "extension")) == NULL) {
h2o_configurator_errprintf(cmd, node, "mandatory key `extension` is missing");
goto Exit;
}
type = h2o_mimemap_create_dynamic_type(ctx->globalconf);
ctx->pathconf = &type->data.dynamic.pathconf;
if (h2o_configurator_apply_commands(ctx, node, H2O_CONFIGURATOR_FLAG_EXTENSION, ignore_commands) != 0)
goto Exit;
switch (type->data.dynamic.pathconf.handlers.size) {
case 1:
break;
case 0:
h2o_configurator_errprintf(cmd, node, "no handler declared for given extension");
goto Exit;
default:
h2o_configurator_errprintf(cmd, node, "cannot assign more than one handler for given extension");
goto Exit;
}
clone_mimemap_if_clean(self);
switch (ext_node->type) {
case YOML_TYPE_SCALAR:
if (assert_is_extension(cmd, ext_node) != 0)
goto Exit;
h2o_mimemap_set_type(self->vars->mimemap, ext_node->data.scalar + 1, type, 1);
break;
case YOML_TYPE_SEQUENCE: {
size_t i;
for (i = 0; i != ext_node->data.sequence.size; ++i) {
yoml_t *n = ext_node->data.sequence.elements[i];
if (assert_is_extension(cmd, n) != 0)
goto Exit;
h2o_mimemap_set_type(self->vars->mimemap, n->data.scalar + 1, type, 1);
}
} break;
default:
h2o_configurator_errprintf(cmd, ext_node,
"only scalar or sequence of scalar is permitted at the value part of the argument");
goto Exit;
}
ret = 0;
Exit:
if (type != NULL)
h2o_mem_release_shared(type);
ctx->pathconf = prev_pathconf;
return ret;
}
static int on_config_mruby_handler_path(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
{
h2o_configurator_errprintf(cmd, node, "the command has been removed; see https://github.com/h2o/h2o/pull/467");
return -1;
}
