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mod_mono.c
3083 lines (2660 loc) · 90.7 KB
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mod_mono.c
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/*
* mod_mono.c
*
* Authors:
* Daniel Lopez Ridruejo
* Gonzalo Paniagua Javier
* Marek Habersack
*
* Copyright (c) 2002 Daniel Lopez Ridruejo
* (c) 2002-2009 Novell, Inc.
*
* 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.
*/
#ifdef HAVE_CONFIG_H
#include "mod_mono_config.h"
#endif
/* uncomment this to get tons of messages in the log */
/* or use --enable-debug with configure */
/* #define DEBUG */
#ifndef DEBUG_LEVEL
#define DEBUG_LEVEL 0
#endif
#ifdef DEBUG
#define STDOUT_NULL_DEFAULT 0
#else
#define STDOUT_NULL_DEFAULT 1
#endif
#include <stdlib.h>
#include "mod_mono.h"
#include "mono-io-portability.h"
DEFINE_MODULE (mono_module);
/* Configuration pool. Cleared on restart. */
static apr_pool_t *pconf;
typedef struct per_dir_config {
char *location;
char *alias;
} per_dir_config;
enum {
FORK_NONE,
FORK_INPROCESS,
FORK_ATTEMPTED,
FORK_FAILED,
FORK_SUCCEEDED
};
typedef enum {
AUTORESTART_MODE_INVALID,
AUTORESTART_MODE_NONE,
AUTORESTART_MODE_TIME,
AUTORESTART_MODE_REQUESTS,
} auto_restart_mode;
#define URI_LIST_ITEM_SIZE 256
#define ACTIVE_URI_LIST_ITEM_COUNT 100
#define WAITING_URI_LIST_ITEM_COUNT 100
typedef struct {
int32_t id;
time_t start_time;
char uri[URI_LIST_ITEM_SIZE];
} uri_item;
typedef struct {
uint32_t requests_counter;
uint32_t handled_requests;
time_t start_time;
char restart_issued;
char starting;
int active_requests;
int waiting_requests;
int accepting_requests;
uri_item active_uri_list[ACTIVE_URI_LIST_ITEM_COUNT];
uri_item waiting_uri_list[WAITING_URI_LIST_ITEM_COUNT];
} dashboard_data;
#define INITIAL_DATA_MAX_ALLOCA_SIZE 8192
typedef struct {
size_t method_len;
size_t server_hostname_len;
size_t uri_len;
size_t args_len;
size_t protocol_len;
size_t local_ip_len;
size_t remote_ip_len;
const char *remote_name;
size_t remote_name_len;
size_t filename_len;
} initial_data_info;
typedef struct xsp_data {
char is_default;
char *alias;
char *filename; /* Unix socket path */
char *umask_value;
char *run_xsp;
char *executable_path;
char *path;
char *server_path;
char *target_framework;
char *applications;
char *wapidir;
char *document_root;
char *appconfig_file;
char *appconfig_dir;
char *listen_port;
char *listen_address;
char *max_cpu_time;
char *max_memory;
char *debug;
char *env_vars;
char *iomap;
char *hidden;
char status; /* One of the FORK_* in the enum above.
* Don't care if run_xsp is "false" */
char is_virtual; /* is the server virtual? */
char *start_attempts;
char *start_wait_time;
char *max_active_requests;
char *max_waiting_requests;
/* auto-restart stuff */
auto_restart_mode restart_mode;
uint32_t restart_requests;
uint32_t restart_time;
/* other settings */
unsigned char no_flush;
int portability_level;
/* The dashboard */
apr_shm_t *dashboard_shm;
dashboard_data *dashboard;
apr_global_mutex_t *dashboard_mutex;
char dashboard_mutex_initialized_in_child;
char *dashboard_file;
char *dashboard_lock_file;
} xsp_data;
typedef struct {
int nservers;
xsp_data *servers;
char auto_app;
char auto_app_set;
} module_cfg;
typedef struct {
uint32_t client_block_buffer_size;
char *client_block_buffer;
} request_data;
typedef struct {
char *name;
apr_lockmech_e sym;
char available;
} lock_mechanism;
#define LOCK_MECH(name) {#name, APR_LOCK_ ## name, APR_HAS_ ## name ## _SERIALIZE}
static lock_mechanism lockMechanisms [] = {
LOCK_MECH (FCNTL),
LOCK_MECH (FLOCK),
LOCK_MECH (SYSVSEM),
LOCK_MECH (PROC_PTHREAD),
LOCK_MECH (POSIXSEM),
{"DEFAULT", APR_LOCK_DEFAULT, 1},
{NULL, 0, 0}
};
static int send_table (apr_pool_t *pool, apr_table_t *table, apr_socket_t *sock);
static void start_xsp (module_cfg *config, int is_restart, char *alias);
static apr_status_t terminate_xsp2 (void *data, char *alias, int for_restart, int lock_held);
#define IS_MASTER(__conf__) (!strcmp (GLOBAL_SERVER_NAME, (__conf__)->alias))
static long
string_to_long (char *str, char *what, long def)
{
long retval;
char *endptr;
if (!str || !*str)
return def;
retval = strtol (str, &endptr, 0);
if ((retval == LONG_MAX && errno == ERANGE) || (str == endptr) || *endptr) {
ap_log_error (APLOG_MARK, APLOG_WARNING, STATUS_AND_SERVER,
"%s: conversion to integer failed - returning the default value %lu.",
what ? what : "Configuration", def);
return def;
}
return retval;
}
static apr_lockmech_e
get_apr_locking_mechanism ()
{
char *name = getenv ("MOD_MONO_LOCKING_MECHANISM");
int i = 0;
DEBUG_PRINT (2, "Requested locking mechanism name: %s", name);
if (!name)
return APR_LOCK_DEFAULT;
while (lockMechanisms [i].name) {
if (!strncasecmp (name, lockMechanisms [i].name, strlen (lockMechanisms [i].name))) {
if (lockMechanisms [i].available) {
DEBUG_PRINT (1, "Using configured lock mechanism: %s", lockMechanisms [i].name);
return lockMechanisms [i].sym;
} else {
ap_log_error (APLOG_MARK, APLOG_ALERT, STATUS_AND_SERVER,
"Locking mechanism '%s' is unavailable for this platform. Using the default one.",
lockMechanisms [i].name);
return APR_LOCK_DEFAULT;
}
}
i++;
}
ap_log_error (APLOG_MARK, APLOG_ALERT, STATUS_AND_SERVER,
"No locking mechanism matching '%s' has been found for this platform. Using the default one.",
name);
return APR_LOCK_DEFAULT;
}
/* */
static int
search_for_alias (const char *alias, module_cfg *config)
{
/* 'alias' may be NULL to search for the default XSP */
int i;
xsp_data *xsp;
DEBUG_PRINT (0, "Searching for alias %s", alias);
DEBUG_PRINT (0, "%u servers available", config->nservers);
for (i = 0; i < config->nservers; i++) {
xsp = &config->servers [i];
DEBUG_PRINT (0, "Server at index %u is '%s'", i, xsp->alias);
if ((alias == NULL || !strcmp (alias, "default")) && xsp->is_default)
return i;
if (alias != NULL && !strcmp (alias, xsp->alias))
return i;
}
return -1;
}
static const char *
set_alias (cmd_parms *cmd, void *mconfig, const char *alias)
{
per_dir_config *config = mconfig;
module_cfg *sconfig;
sconfig = ap_get_module_config (cmd->server->module_config, &mono_module);
config->alias = (char *) alias;
if (search_for_alias (alias, sconfig) == -1) {
char *err = apr_pstrcat (cmd->pool, "Server alias '", alias, ", not found.", NULL);
return err;
}
return NULL;
}
static const char *
set_auto_application (cmd_parms *cmd, void *mconfig, const char *value)
{
module_cfg *sconfig;
sconfig = ap_get_module_config (cmd->server->module_config, &mono_module);
if (!strcasecmp (value, "disabled")) {
if (sconfig->auto_app_set && sconfig->auto_app != FALSE)
return apr_pstrdup (cmd->pool, "Conflicting values for MonoAutoApplication.");
sconfig->auto_app = FALSE;
/* TODO: Copiar de 'XXGLOBAL' a 'default' */
} else if (!strcasecmp (value, "enabled")) {
if (sconfig->auto_app_set && sconfig->auto_app != TRUE)
return apr_pstrdup (cmd->pool, "Conflicting values for MonoAutoApplication.");
sconfig->auto_app = TRUE;
} else {
return apr_pstrdup (cmd->pool, "Invalid value. Must be 'enabled' or 'disabled'");
}
sconfig->auto_app_set = TRUE;
return NULL;
}
static unsigned long
parse_restart_time (const char *t)
{
uint32_t time_spec [4] = {0, 0, 0, 0};
int parsed;
parsed = sscanf (t, "%u:%u:%u:%u",
&time_spec [0],
&time_spec [1],
&time_spec [2],
&time_spec [3]);
switch (parsed) {
case 1:
DEBUG_PRINT (1, "Auto-restart will happen after: %u days (%us)",
time_spec [0],
time_spec [0] * 86400);
return time_spec [0] * 86400;
case 2:
DEBUG_PRINT (1, "Auto-restart will happen after: %u days, %u hours (%us)",
time_spec [0], time_spec [1],
(time_spec [0] * 86400) + (time_spec [1] * 3600));
return (time_spec [0] * 86400) + (time_spec [1] * 3600);
case 3:
DEBUG_PRINT (1, "Auto-restart will happen after: %u days, %u hours, %u minutes (%us)",
time_spec [0], time_spec [1], time_spec [2],
(time_spec [0] * 86400) + (time_spec [1] * 3600) + (time_spec [2] * 60));
return (time_spec [0] * 86400) + (time_spec [1] * 3600) + (time_spec [2] * 60);
case 4:
DEBUG_PRINT (1, "Auto-restart will happen: %u days, %u hours, %u minutes, %u seconds (%us)",
time_spec [0], time_spec [1], time_spec [2], time_spec [3],
(time_spec [0] * 86400) + (time_spec [1] * 3600) + (time_spec [2] * 60) + time_spec [3]);
return (time_spec [0] * 86400) + (time_spec [1] * 3600) + (time_spec [2] * 60) + time_spec [3];
default:
return 0;
}
}
static void
get_restart_mode (xsp_data *xsp, const char *value)
{
unsigned long val = 0;
if (xsp == NULL)
return;
switch (xsp->restart_mode) {
case AUTORESTART_MODE_REQUESTS:
ap_log_error (APLOG_MARK, APLOG_NOTICE, STATUS_AND_SERVER,
"Backend '%s' auto-restart mode %s enabled",
xsp->alias ? xsp->alias : "default", "REQUESTS");
if (value)
val = (unsigned long)strtol (value, NULL, 0);
if (val == 0 || val > UINT_MAX || (val == ULONG_MAX && errno == ERANGE))
val = DEFAULT_RESTART_REQUESTS;
ap_log_error (APLOG_MARK, APLOG_NOTICE, STATUS_AND_SERVER,
"Auto-restart will happen after %u requests made to the backend",
(uint32_t)val);
xsp->restart_requests = (uint32_t)val;
break;
case AUTORESTART_MODE_TIME:
ap_log_error (APLOG_MARK, APLOG_NOTICE, STATUS_AND_SERVER,
"Backend '%s' auto-restart mode %s enabled",
xsp->alias ? xsp->alias : "default", "TIME");
if (value)
val = parse_restart_time (value);
if (val == 0 || val > UINT_MAX || (val == ULONG_MAX && errno == ERANGE))
val = DEFAULT_RESTART_TIME;
ap_log_error (APLOG_MARK, APLOG_NOTICE, STATUS_AND_SERVER,
"Auto-restart will happen after %u seconds of the backend uptime",
(uint32_t)val);
xsp->restart_time = (uint32_t)val;
break;
default:
break;
}
}
inline static uid_t
apache_get_userid ()
{
#ifdef HAVE_UNIXD
return unixd_config.user_id;
#else
return ap_user_id;
#endif
}
inline static gid_t
apache_get_groupid ()
{
#ifdef HAVE_UNIXD
return unixd_config.group_id;
#else
return ap_group_id;
#endif
}
inline static const char *
apache_get_username ()
{
#ifdef HAVE_UNIXD
return unixd_config.user_name;
#else
return ap_user_name;
#endif
}
inline static void
initialize_uri_list (uri_item* list, int nitems)
{
int i;
for (i = 0; i < nitems; i++) {
memset (&list [i], 0, sizeof (uri_item));
list [i].id = -1;
list [i].start_time = -1;
}
}
static void
ensure_dashboard_initialized (module_cfg *config, xsp_data *xsp, apr_pool_t *p)
{
apr_status_t rv;
mode_t old_umask;
#if defined (APR_HAS_USER)
apr_uid_t cur_uid;
apr_gid_t cur_gid;
int switch_back_to_root = 0;
#endif
int is_global;
if (IS_MASTER (xsp))
is_global = 1;
else
is_global = 0;
if (!xsp->dashboard_mutex || !xsp->dashboard_shm)
xsp->dashboard = NULL;
#if defined (APR_HAS_USER)
if (apache_get_userid () == -1 || apache_get_groupid () == -1) {
ap_log_error (APLOG_MARK, APLOG_CRIT, STATUS_AND_SERVER,
"The unix daemon module not initialized yet. Please make sure that "
"your mod_mono module is loaded after the User/Group directives have "
"been parsed. Not initializing the dashboard.");
return;
}
if (apr_uid_current (&cur_uid, &cur_gid, p) == APR_SUCCESS && cur_uid == 0) {
DEBUG_PRINT (2, "Temporarily switching to target uid/gid");
switch_back_to_root = 1;
if (setegid (apache_get_groupid ()) == -1)
ap_log_error (APLOG_MARK, APLOG_ALERT, STATUS_AND_SERVER,
"setegid: unable to set effective group id to %u. %s",
(unsigned)apache_get_groupid (), strerror (errno));
if (seteuid (apache_get_userid ()) == -1)
ap_log_error (APLOG_MARK, APLOG_ALERT, STATUS_AND_SERVER,
"seteuid: unable to set effective user id to %u. %s",
(unsigned)apache_get_userid (), strerror (errno));
}
#endif
if (!xsp->dashboard_mutex) {
DEBUG_PRINT (1, "creating dashboard mutex = %s", xsp->dashboard_lock_file);
if (unlink (xsp->dashboard_lock_file) == -1 && errno != ENOENT) {
ap_log_error (APLOG_MARK, APLOG_CRIT, STATUS_AND_SERVER,
"Failed to remove dashboard mutex file '%s'; will attempt to continue. %s",
xsp->dashboard_lock_file, strerror (errno));
}
rv = apr_global_mutex_create (&xsp->dashboard_mutex, xsp->dashboard_lock_file,
get_apr_locking_mechanism (), p);
if (rv != APR_SUCCESS) {
ap_log_error (APLOG_MARK, APLOG_CRIT, STATCODE_AND_SERVER (rv),
"Failed to create mutex '%s'", xsp->dashboard_lock_file);
goto restore_creds;
}
#if defined (AP_NEED_SET_MUTEX_PERMS) && defined (HAVE_UNIXD)
DEBUG_PRINT (1, "Setting mutex permissions for %s", xsp->dashboard_lock_file);
rv = unixd_set_global_mutex_perms (xsp->dashboard_mutex);
if (rv != APR_SUCCESS) {
ap_log_error (APLOG_MARK, APLOG_CRIT, STATCODE_AND_SERVER (rv),
"Failed to set mutex permissions for %s",
xsp->dashboard_lock_file);
goto restore_creds;
}
#endif
}
if (!xsp->dashboard_shm)
rv = apr_shm_attach (&xsp->dashboard_shm, xsp->dashboard_file, p);
else
rv = APR_SUCCESS;
if (rv == APR_SUCCESS) {
DEBUG_PRINT (1, "Attaching to dashboard (file '%s')", xsp->dashboard_file);
xsp->dashboard = apr_shm_baseaddr_get (xsp->dashboard_shm);
} else {
DEBUG_PRINT (1, "removing dashboard file '%s'", xsp->dashboard_file);
if (unlink (xsp->dashboard_file) == -1 && errno != ENOENT) {
if (!is_global)
ap_log_error (APLOG_MARK, APLOG_CRIT, STATCODE_AND_SERVER (rv),
"Failed to attach to existing dashboard, and removing dashboard file '%s' failed (%s). Further action impossible.",
xsp->dashboard_file, strerror (errno));
xsp->dashboard = NULL;
goto restore_creds;
}
DEBUG_PRINT (1, "creating dashboard '%s'", xsp->dashboard_file);
old_umask = umask (0077);
rv = apr_shm_create (&xsp->dashboard_shm, sizeof (dashboard_data), xsp->dashboard_file, p);
umask (old_umask);
if (rv != APR_SUCCESS) {
xsp->dashboard = NULL;
ap_log_error (APLOG_MARK, APLOG_CRIT, STATCODE_AND_SERVER (rv),
"Failed to create shared memory segment for backend '%s' at '%s'.",
xsp->alias, xsp->dashboard_file);
} else {
rv = apr_shm_attach (&xsp->dashboard_shm, xsp->dashboard_file, p);
if (rv != APR_SUCCESS) {
xsp->dashboard = NULL;
ap_log_error (APLOG_MARK, APLOG_CRIT, STATCODE_AND_SERVER (rv),
"Failed to attach to the dashboard '%s'",
xsp->dashboard_file);
goto restore_creds;
}
xsp->dashboard = apr_shm_baseaddr_get (xsp->dashboard_shm);
xsp->dashboard->start_time = time (NULL);
xsp->dashboard->requests_counter = 0;
xsp->dashboard->handled_requests = 0;
xsp->dashboard->restart_issued = 0;
xsp->dashboard->active_requests = 0;
xsp->dashboard->waiting_requests = 0;
xsp->dashboard->starting = 0;
xsp->dashboard->accepting_requests = 1;
initialize_uri_list (xsp->dashboard->active_uri_list, ACTIVE_URI_LIST_ITEM_COUNT);
initialize_uri_list (xsp->dashboard->waiting_uri_list, WAITING_URI_LIST_ITEM_COUNT);
}
}
restore_creds:
#if defined (APR_HAS_USER) && !defined (WIN32)
if (switch_back_to_root) {
DEBUG_PRINT (2, "Switching back to root");
if (seteuid (0) == -1)
ap_log_error (APLOG_MARK, APLOG_ALERT, STATUS_AND_SERVER,
"seteuid: cannot switch the effective user id back to root. %s",
strerror (errno));
if (setegid (0) == -1)
ap_log_error (APLOG_MARK, APLOG_ALERT, STATUS_AND_SERVER,
"setegid: cannot switch the effective group id back to root. %s",
strerror (errno));
}
#endif
}
static int
add_xsp_server (apr_pool_t *pool, const char *alias, module_cfg *config, int is_default, int is_virtual)
{
xsp_data *server;
xsp_data *servers;
int nservers;
int i;
char num [8];
DEBUG_PRINT (0, "add_xsp_server for alias %s", alias);
i = search_for_alias (alias, config);
DEBUG_PRINT (0, "index for this server is %d", i);
if (i >= 0)
return i;
DEBUG_PRINT (0, "alias not found, continuing");
server = apr_pcalloc (pool, sizeof (xsp_data));
server->is_default = is_default;
server->alias = apr_pstrdup (pool, alias);
server->filename = NULL;
server->umask_value = NULL;
server->run_xsp = "True";
/* (Obsolete) server->executable_path = EXECUTABLE_PATH; */
server->path = NULL;
server->server_path = NULL;
server->target_framework = NULL;
server->applications = NULL;
server->wapidir = WAPIDIR;
server->document_root = DOCUMENT_ROOT;
server->appconfig_file = APPCONFIG_FILE;
if (is_default)
server->appconfig_dir = APPCONFIG_DIR;
server->listen_port = NULL;
server->listen_address = NULL;
server->max_cpu_time = NULL;
server->max_memory = NULL;
server->debug = NULL;
server->env_vars = NULL;
server->iomap = NULL;
server->portability_level = PORTABILITY_UNKNOWN;
server->status = FORK_NONE;
server->is_virtual = is_virtual;
server->start_attempts = NULL;
server->start_wait_time = NULL;
server->no_flush = 1;
server->max_active_requests = NULL;
server->max_waiting_requests = NULL;
apr_snprintf (num, sizeof (num), "%u", (unsigned)config->nservers + 1);
server->dashboard_file = apr_pstrcat (pool,
DASHBOARD_FILE,
"_",
alias == NULL ? "default" : alias,
"_",
num,
NULL);
server->dashboard_lock_file = apr_pstrcat (pool, server->dashboard_file, ".lock", NULL);
server->dashboard_shm = NULL;
server->dashboard = NULL;
server->dashboard_mutex = NULL;
server->dashboard_mutex_initialized_in_child = 0;
server->restart_mode = AUTORESTART_MODE_INVALID;
server->restart_requests = 0;
server->restart_time = 0;
ensure_dashboard_initialized (config, server, pool);
/* This is needed, because we're being called from the main process and dashboard must NOT */
/* be set to any value when start_xsp is called from child init or handler init. */
server->dashboard = NULL;
nservers = config->nservers + 1;
servers = config->servers;
config->servers = apr_pcalloc (pool, sizeof (xsp_data) * nservers);
if (config->nservers > 0)
memcpy (config->servers, servers, sizeof (xsp_data) * config->nservers);
memcpy (&config->servers [config->nservers], server, sizeof (xsp_data));
config->nservers = nservers;
return config->nservers - 1;
}
static int
handle_restart_config (char *ptr, unsigned long offset, const char *value)
{
xsp_data *xsp = (xsp_data*)ptr;
if (offset == APR_OFFSETOF (xsp_data, restart_mode)) {
if (!strncasecmp (value, "REQUESTS", 8)) {
xsp->restart_mode = AUTORESTART_MODE_REQUESTS;
xsp->restart_requests = DEFAULT_RESTART_REQUESTS;
} else if (!strncasecmp (value, "TIME", 4)) {
xsp->restart_mode = AUTORESTART_MODE_TIME;
xsp->restart_time = DEFAULT_RESTART_TIME;
} else if (!strncasecmp (value, "NONE", 4))
xsp->restart_mode = AUTORESTART_MODE_NONE;
else
xsp->restart_mode = AUTORESTART_MODE_INVALID;
return 1;
}
if ((offset == APR_OFFSETOF (xsp_data, restart_requests)) ||
(offset == APR_OFFSETOF (xsp_data, restart_time))) {
get_restart_mode (xsp, value);
return 1;
}
return 0;
}
static const char *
store_config_xsp (cmd_parms *cmd, void *notused, const char *first, const char *second)
{
const char *alias;
const char *value;
char *prev_value = NULL;
char *new_value;
int idx;
module_cfg *config;
char *ptr;
unsigned long offset;
int is_default;
offset = (unsigned long) cmd->info;
DEBUG_PRINT (0, "store_config %lu '%s' '%s'", offset, first, second);
config = ap_get_module_config (cmd->server->module_config, &mono_module);
if (second == NULL) {
if (config->auto_app) {
idx = search_for_alias (GLOBAL_SERVER_NAME, config);
value = first;
ptr = (char *) &config->servers [idx];
/* special handling for restart fields */
if (handle_restart_config (ptr, offset, value))
return NULL;
ptr += offset;
/* MonoApplications/AddMonoApplications are accumulative */
if (offset == APR_OFFSETOF (xsp_data, applications))
prev_value = *((char **) ptr);
if (prev_value != NULL) {
new_value = apr_pstrcat (cmd->pool, prev_value, ",", value, NULL);
} else {
new_value = apr_pstrdup (cmd->pool, value);
}
*((char **) ptr) = new_value;
return NULL;
}
alias = "default";
if (cmd->server->is_virtual && cmd->server->server_hostname)
alias = cmd->server->server_hostname;
value = first;
is_default = 1;
} else {
if (!strcmp (first, GLOBAL_SERVER_NAME))
return apr_pstrdup (cmd->pool, "XXGLOBAL is a reserved application identifier.");
alias = first;
value = second;
is_default = (!strcmp (alias, "default"));
}
/* Disable autoapp if there's any other application. MonoDebug is excluded. */
if (!config->auto_app_set)
config->auto_app = FALSE;
idx = search_for_alias (alias, config);
if (idx == -1) {
DEBUG_PRINT (0, "Calling add_xsp from %s", __PRETTY_FUNCTION__);
idx = add_xsp_server (cmd->pool, alias, config, is_default, cmd->server->is_virtual);
}
ptr = (char *) &config->servers [idx];
/* special handling for restart fields */
if (handle_restart_config (ptr, offset, value))
return NULL;
ptr += offset;
/* MonoApplications/AddMonoApplications are accumulative */
if (offset == APR_OFFSETOF (xsp_data, applications))
prev_value = *((char **) ptr);
if (prev_value != NULL) {
new_value = apr_pstrcat (cmd->pool, prev_value, ",", value, NULL);
} else {
new_value = apr_pstrdup (cmd->pool, value);
}
*((char **) ptr) = new_value;
DEBUG_PRINT (0, "store_config end: %s", new_value);
return NULL;
}
static void *
merge_config (apr_pool_t *p, void *base_conf, void *new_conf)
{
module_cfg *base_module = (module_cfg *) base_conf;
module_cfg *new_module = (module_cfg *) new_conf;
xsp_data *base_config;
xsp_data *new_config;
int nservers;
if (new_module->nservers == 0)
return new_module;
base_config = base_module->servers;
new_config = new_module->servers;
nservers = base_module->nservers + new_module->nservers;
/* FIXME: error out on duplicate aliases. */
base_module->servers = apr_pcalloc (p, sizeof (xsp_data) * nservers);
memcpy (base_module->servers, base_config, sizeof (xsp_data) * base_module->nservers);
memcpy (&base_module->servers [base_module->nservers], new_config, new_module->nservers * sizeof (xsp_data));
base_module->nservers = nservers;
DEBUG_PRINT (0, "Total mod-mono-servers to spawn so far: %d", nservers);
return new_module;
}
static void *
create_dir_config (apr_pool_t *p, char *dirspec)
{
per_dir_config *cfg;
DEBUG_PRINT (0, "creating dir config for %s", dirspec);
cfg = apr_pcalloc (p, sizeof (per_dir_config));
if (dirspec != NULL)
cfg->location = apr_pstrdup (p, dirspec);
return cfg;
}
static char *
get_default_global_socket_name (apr_pool_t *pool, const char *base)
{
return apr_pstrcat (pool, base, "_", "global", NULL);
}
static void *
create_mono_server_config (apr_pool_t *p, server_rec *s)
{
module_cfg *server;
DEBUG_PRINT (0, "creating mono server config");
server = apr_pcalloc (p, sizeof (module_cfg));
server->auto_app = TRUE;
server->auto_app_set = FALSE;
add_xsp_server (p, GLOBAL_SERVER_NAME, server, FALSE, FALSE);
return server;
}
static void
request_send_response_from_memory (request_rec *r, char *byteArray, int size, int noFlush)
{
DEBUG_PRINT (0, "sending from memory with%s flush", noFlush ? "out" : "");
ap_rwrite (byteArray, size, r);
if (!noFlush) {
DEBUG_PRINT (0, "flushing");
ap_rflush (r);
}
}
static void
request_send_response_string (request_rec *r, char *byteArray)
{
request_send_response_from_memory (r, byteArray, strlen (byteArray), 0);
}
/* Not connection because actual port will vary depending on Apache configuration */
static int
request_get_server_port (request_rec *r)
{
return ap_get_server_port (r);
}
static int
connection_get_remote_port (conn_rec *c)
{
#if defined(APACHE22)
return c->remote_addr->port;
#else
apr_port_t port;
apr_sockaddr_port_get (&port, c->remote_addr);
return port;
#endif
}
static int
connection_get_local_port (request_rec *r)
{
#if defined(APACHE22)
return r->connection->local_addr->port;
#else
apr_port_t port;
apr_sockaddr_port_get (&port, r->connection->local_addr);
return port;
#endif
}
static const char *
connection_get_remote_name (request_rec *r)
{
return ap_get_remote_host (r->connection, r->per_dir_config, REMOTE_NAME, NULL);
}
static void
set_response_header (request_rec *r,
const char *name,
const char *value)
{
if (!strcasecmp (name,"Content-Type")) {
r->content_type = value;
} else {
apr_table_addn (r->headers_out, name, value);
}
}
static int
setup_client_block (request_rec *r)
{
if (r->read_length)
return APR_SUCCESS;
return ap_setup_client_block (r, REQUEST_CHUNKED_DECHUNK);
}
static int
write_data (apr_socket_t *sock, const void *str, apr_size_t size)
{
apr_size_t prevsize = size;
apr_status_t statcode;
if ((statcode = apr_socket_send (sock, str, &size)) != APR_SUCCESS) {
ap_log_error (APLOG_MARK, APLOG_ERR, STATCODE_AND_SERVER (statcode), "write_data failed");
return -1;
}
return (prevsize == size) ? size : -1;
}
static int
read_data (apr_socket_t *sock, void *ptr, apr_size_t size)
{
apr_status_t statcode;
if ((statcode = apr_socket_recv (sock, ptr, &size)) != APR_SUCCESS) {
ap_log_error (APLOG_MARK, APLOG_ERR, STATCODE_AND_SERVER (statcode), "read_data failed");
return -1;
}
return size;
}
static char *
read_data_string (apr_pool_t *pool, apr_socket_t *sock, char **ptr, int32_t *size)
{
int l, count;
char *buf;
apr_status_t result;
if (read_data (sock, &l, sizeof (int32_t)) == -1)
return NULL;
l = INT_FROM_LE (l);
buf = apr_pcalloc (pool, l + 1);
count = l;
while (count > 0) {
result = read_data (sock, buf + l - count, count);
if (result == -1)
return NULL;
count -= result;
}
if (ptr)
*ptr = buf;
if (size)
*size = l;
return buf;
}
static int
send_entire_file (request_rec *r, const char *filename, int *result, xsp_data *xsp)
{
#ifdef APR_LARGEFILE
# define MODMONO_LARGE APR_LARGEFILE
#else
# define MODMONO_LARGE 0
#endif
apr_file_t *file;
apr_status_t st;
apr_finfo_t info;
apr_size_t nbytes;
const apr_int32_t flags = APR_READ | APR_SENDFILE_ENABLED | MODMONO_LARGE;
int retval = 0;
gchar *file_path = mono_portability_find_file (xsp->portability_level, filename, TRUE);
st = apr_file_open (&file, file_path ? file_path : filename, flags, APR_OS_DEFAULT, r->pool);
if (st != APR_SUCCESS) {
DEBUG_PRINT (2, "file_open FAILED (path: %s)", file_path ? file_path : filename);
*result = HTTP_FORBIDDEN;
retval = -1;
goto finish;
}
st = apr_file_info_get (&info, APR_FINFO_SIZE, file);
if (st != APR_SUCCESS) {
DEBUG_PRINT (2, "info_get FAILED");
*result = HTTP_FORBIDDEN;
retval = -1;
goto finish;
}
st = ap_send_fd (file, r, 0, info.size, &nbytes);
apr_file_close (file);
if (nbytes < 0) {
DEBUG_PRINT (2, "SEND FAILED");
*result = HTTP_INTERNAL_SERVER_ERROR;
retval = -1;
goto finish;
}
finish:
if (file_path)
g_free (file_path);