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/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.
*/
#include "mod_lua.h"
#include "lua_apr.h"
#include "lua_dbd.h"
#include "lua_passwd.h"
#include "scoreboard.h"
#include "util_md5.h"
#include "util_script.h"
#include "util_varbuf.h"
#include "apr_date.h"
#include "apr_pools.h"
#include "apr_thread_mutex.h"
#include "apr_tables.h"
#include "util_cookies.h"
#define APR_WANT_BYTEFUNC
#include "apr_want.h"
extern apr_global_mutex_t* lua_ivm_mutex;
extern apr_shm_t *lua_ivm_shm;
APLOG_USE_MODULE(lua);
#define POST_MAX_VARS 500
#ifndef MODLUA_MAX_REG_MATCH
#define MODLUA_MAX_REG_MATCH 25
#endif
typedef char *(*req_field_string_f) (request_rec * r);
typedef int (*req_field_int_f) (request_rec * r);
typedef req_table_t *(*req_field_apr_table_f) (request_rec * r);
void ap_lua_rstack_dump(lua_State *L, request_rec *r, const char *msg)
{
int i;
int top = lua_gettop(L);
ap_log_rerror(APLOG_MARK, APLOG_INFO, 0, r, APLOGNO(01484) "Lua Stack Dump: [%s]", msg);
for (i = 1; i <= top; i++) {
int t = lua_type(L, i);
switch (t) {
case LUA_TSTRING:{
ap_log_rerror(APLOG_MARK, APLOG_INFO, 0, r, APLOGNO(03001)
"%d: '%s'", i, lua_tostring(L, i));
break;
}
case LUA_TUSERDATA:{
ap_log_rerror(APLOG_MARK, APLOG_INFO, 0, r, APLOGNO(03002)
"%d: userdata", i);
break;
}
case LUA_TLIGHTUSERDATA:{
ap_log_rerror(APLOG_MARK, APLOG_INFO, 0, r, APLOGNO(03003)
"%d: lightuserdata", i);
break;
}
case LUA_TNIL:{
ap_log_rerror(APLOG_MARK, APLOG_INFO, 0, r, APLOGNO(03004)
"%d: NIL", i);
break;
}
case LUA_TNONE:{
ap_log_rerror(APLOG_MARK, APLOG_INFO, 0, r, APLOGNO(03005)
"%d: None", i);
break;
}
case LUA_TBOOLEAN:{
ap_log_rerror(APLOG_MARK, APLOG_INFO, 0, r, APLOGNO(03006)
"%d: %s", i,
lua_toboolean(L, i) ? "true" : "false");
break;
}
case LUA_TNUMBER:{
ap_log_rerror(APLOG_MARK, APLOG_INFO, 0, r, APLOGNO(03007)
"%d: %g", i, lua_tonumber(L, i));
break;
}
case LUA_TTABLE:{
ap_log_rerror(APLOG_MARK, APLOG_INFO, 0, r, APLOGNO(03008)
"%d: <table>", i);
break;
}
case LUA_TFUNCTION:{
ap_log_rerror(APLOG_MARK, APLOG_INFO, 0, r, APLOGNO(03009)
"%d: <function>", i);
break;
}
default:{
ap_log_rerror(APLOG_MARK, APLOG_INFO, 0, r, APLOGNO(03010)
"%d: unknown: -[%s]-", i, lua_typename(L, i));
break;
}
}
}
}
/**
* Verify that the thing at index is a request_rec wrapping
* userdata thingamajig and return it if it is. if it is not
* lua will enter its error handling routine.
*/
static request_rec *ap_lua_check_request_rec(lua_State *L, int index)
{
request_rec *r;
luaL_checkudata(L, index, "Apache2.Request");
r = (request_rec *) lua_unboxpointer(L, index);
return r;
}
/* ------------------ request methods -------------------- */
/* helper callback for req_parseargs */
static int req_aprtable2luatable_cb(void *l, const char *key,
const char *value)
{
int t;
lua_State *L = (lua_State *) l; /* [table<s,t>, table<s,s>] */
/* rstack_dump(L, RRR, "start of cb"); */
/* L is [table<s,t>, table<s,s>] */
/* build complex */
lua_getfield(L, -1, key); /* [VALUE, table<s,t>, table<s,s>] */
/* rstack_dump(L, RRR, "after getfield"); */
t = lua_type(L, -1);
switch (t) {
case LUA_TNIL:
case LUA_TNONE:{
lua_pop(L, 1); /* [table<s,t>, table<s,s>] */
lua_newtable(L); /* [array, table<s,t>, table<s,s>] */
lua_pushnumber(L, 1); /* [1, array, table<s,t>, table<s,s>] */
lua_pushstring(L, value); /* [string, 1, array, table<s,t>, table<s,s>] */
lua_settable(L, -3); /* [array, table<s,t>, table<s,s>] */
lua_setfield(L, -2, key); /* [table<s,t>, table<s,s>] */
break;
}
case LUA_TTABLE:{
/* [array, table<s,t>, table<s,s>] */
int size = lua_rawlen(L, -1);
lua_pushnumber(L, size + 1); /* [#, array, table<s,t>, table<s,s>] */
lua_pushstring(L, value); /* [string, #, array, table<s,t>, table<s,s>] */
lua_settable(L, -3); /* [array, table<s,t>, table<s,s>] */
lua_setfield(L, -2, key); /* [table<s,t>, table<s,s>] */
break;
}
}
/* L is [table<s,t>, table<s,s>] */
/* build simple */
lua_getfield(L, -2, key); /* [VALUE, table<s,s>, table<s,t>] */
if (lua_isnoneornil(L, -1)) { /* only set if not already set */
lua_pop(L, 1); /* [table<s,s>, table<s,t>]] */
lua_pushstring(L, value); /* [string, table<s,s>, table<s,t>] */
lua_setfield(L, -3, key); /* [table<s,s>, table<s,t>] */
}
else {
lua_pop(L, 1);
}
return 1;
}
/* helper callback for req_parseargs */
static int req_aprtable2luatable_cb_len(void *l, const char *key,
const char *value, size_t len)
{
int t;
lua_State *L = (lua_State *) l; /* [table<s,t>, table<s,s>] */
/* rstack_dump(L, RRR, "start of cb"); */
/* L is [table<s,t>, table<s,s>] */
/* build complex */
lua_getfield(L, -1, key); /* [VALUE, table<s,t>, table<s,s>] */
/* rstack_dump(L, RRR, "after getfield"); */
t = lua_type(L, -1);
switch (t) {
case LUA_TNIL:
case LUA_TNONE:{
lua_pop(L, 1); /* [table<s,t>, table<s,s>] */
lua_newtable(L); /* [array, table<s,t>, table<s,s>] */
lua_pushnumber(L, 1); /* [1, array, table<s,t>, table<s,s>] */
lua_pushlstring(L, value, len); /* [string, 1, array, table<s,t>, table<s,s>] */
lua_settable(L, -3); /* [array, table<s,t>, table<s,s>] */
lua_setfield(L, -2, key); /* [table<s,t>, table<s,s>] */
break;
}
case LUA_TTABLE:{
/* [array, table<s,t>, table<s,s>] */
int size = lua_rawlen(L, -1);
lua_pushnumber(L, size + 1); /* [#, array, table<s,t>, table<s,s>] */
lua_pushlstring(L, value, len); /* [string, #, array, table<s,t>, table<s,s>] */
lua_settable(L, -3); /* [array, table<s,t>, table<s,s>] */
lua_setfield(L, -2, key); /* [table<s,t>, table<s,s>] */
break;
}
}
/* L is [table<s,t>, table<s,s>] */
/* build simple */
lua_getfield(L, -2, key); /* [VALUE, table<s,s>, table<s,t>] */
if (lua_isnoneornil(L, -1)) { /* only set if not already set */
lua_pop(L, 1); /* [table<s,s>, table<s,t>]] */
lua_pushlstring(L, value, len); /* [string, table<s,s>, table<s,t>] */
lua_setfield(L, -3, key); /* [table<s,s>, table<s,t>] */
}
else {
lua_pop(L, 1);
}
return 1;
}
/*
=======================================================================================================================
lua_read_body(request_rec *r, const char **rbuf, apr_off_t *size): Reads any additional form data sent in POST/PUT
requests. Used for multipart POST data.
=======================================================================================================================
*/
static int lua_read_body(request_rec *r, const char **rbuf, apr_off_t *size,
apr_off_t maxsize)
{
int rc = OK;
if ((rc = ap_setup_client_block(r, REQUEST_CHUNKED_ERROR))) {
return (rc);
}
if (ap_should_client_block(r)) {
/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/
char argsbuffer[HUGE_STRING_LEN];
apr_off_t rsize, len_read, rpos = 0;
apr_off_t length = r->remaining;
/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/
if (maxsize != 0 && length > maxsize) {
return APR_EINCOMPLETE; /* Only room for incomplete data chunk :( */
}
*rbuf = (const char *) apr_pcalloc(r->pool, (apr_size_t) (length + 1));
*size = length;
while ((len_read = ap_get_client_block(r, argsbuffer, sizeof(argsbuffer))) > 0) {
if ((rpos + len_read) > length) {
rsize = length - rpos;
}
else {
rsize = len_read;
}
memcpy((char *) *rbuf + rpos, argsbuffer, (size_t) rsize);
rpos += rsize;
}
}
return (rc);
}
/*
* =======================================================================================================================
* lua_write_body: Reads any additional form data sent in POST/PUT requests
* and writes to a file.
* =======================================================================================================================
*/
static apr_status_t lua_write_body(request_rec *r, apr_file_t *file, apr_off_t *size)
{
apr_status_t rc = OK;
if ((rc = ap_setup_client_block(r, REQUEST_CHUNKED_ERROR)))
return rc;
if (ap_should_client_block(r)) {
char argsbuffer[HUGE_STRING_LEN];
apr_off_t rsize,
len_read,
rpos = 0;
apr_off_t length = r->remaining;
*size = length;
while ((len_read =
ap_get_client_block(r, argsbuffer,
sizeof(argsbuffer))) > 0) {
if ((rpos + len_read) > length)
rsize = (apr_size_t) length - rpos;
else
rsize = len_read;
rc = apr_file_write_full(file, argsbuffer, (apr_size_t) rsize,
NULL);
if (rc != APR_SUCCESS)
return rc;
rpos += rsize;
}
}
return rc;
}
/* r:parseargs() returning a lua table */
static int req_parseargs(lua_State *L)
{
apr_table_t *form_table;
request_rec *r = ap_lua_check_request_rec(L, 1);
lua_newtable(L);
lua_newtable(L); /* [table, table] */
ap_args_to_table(r, &form_table);
apr_table_do(req_aprtable2luatable_cb, L, form_table, NULL);
return 2; /* [table<string, string>, table<string, array<string>>] */
}
/* ap_lua_binstrstr: Binary strstr function for uploaded data with NULL bytes */
static char* ap_lua_binstrstr (const char * haystack, size_t hsize, const char* needle, size_t nsize)
{
size_t p;
if (haystack == NULL) return NULL;
if (needle == NULL) return NULL;
if (hsize < nsize) return NULL;
for (p = 0; p <= (hsize - nsize); ++p) {
if (memcmp(haystack + p, needle, nsize) == 0) {
return (char*) (haystack + p);
}
}
return NULL;
}
/* r:parsebody(): Parses regular (url-enocded) or multipart POST data and returns two tables*/
static int req_parsebody(lua_State *L)
{
apr_array_header_t *pairs;
apr_off_t len;
int res;
apr_size_t size;
apr_size_t max_post_size;
char *multipart;
const char *contentType;
request_rec *r = ap_lua_check_request_rec(L, 1);
max_post_size = (apr_size_t) luaL_optinteger(L, 2, MAX_STRING_LEN);
multipart = apr_pcalloc(r->pool, 256);
contentType = apr_table_get(r->headers_in, "Content-Type");
lua_newtable(L);
lua_newtable(L); /* [table, table] */
if (contentType != NULL && (sscanf(contentType, "multipart/form-data; boundary=%250c", multipart) == 1)) {
char *buffer, *key, *filename;
char *start = 0, *end = 0, *crlf = 0;
const char *data;
int i;
size_t vlen = 0;
size_t len = 0;
if (lua_read_body(r, &data, (apr_off_t*) &size, max_post_size) != OK) {
return 2;
}
len = strlen(multipart);
i = 0;
for
(
start = strstr((char *) data, multipart);
start != NULL;
start = end
) {
i++;
if (i == POST_MAX_VARS) break;
crlf = strstr((char *) start, "\r\n\r\n");
if (!crlf) break;
end = ap_lua_binstrstr(crlf, (size - (crlf - data)), multipart, len);
if (end == NULL) break;
key = (char *) apr_pcalloc(r->pool, 256);
filename = (char *) apr_pcalloc(r->pool, 256);
vlen = end - crlf - 8;
buffer = (char *) apr_pcalloc(r->pool, vlen+1);
memcpy(buffer, crlf + 4, vlen);
sscanf(start + len + 2,
"Content-Disposition: form-data; name=\"%255[^\"]\"; filename=\"%255[^\"]\"",
key, filename);
if (*key) {
req_aprtable2luatable_cb_len(L, key, buffer, vlen);
}
}
}
else {
char *buffer;
res = ap_parse_form_data(r, NULL, &pairs, -1, max_post_size);
if (res == OK) {
while(pairs && !apr_is_empty_array(pairs)) {
ap_form_pair_t *pair = (ap_form_pair_t *) apr_array_pop(pairs);
apr_brigade_length(pair->value, 1, &len);
size = (apr_size_t) len;
buffer = apr_palloc(r->pool, size + 1);
apr_brigade_flatten(pair->value, buffer, &size);
buffer[len] = 0;
req_aprtable2luatable_cb(L, pair->name, buffer);
}
}
}
return 2; /* [table<string, string>, table<string, array<string>>] */
}
/*
* lua_ap_requestbody; r:requestbody([filename]) - Reads or stores the request
* body
*/
static int lua_ap_requestbody(lua_State *L)
{
const char *filename;
request_rec *r;
apr_off_t maxSize;
r = ap_lua_check_request_rec(L, 1);
filename = luaL_optstring(L, 2, 0);
maxSize = (apr_off_t)luaL_optinteger(L, 3, 0);
if (r) {
apr_off_t size;
if (maxSize > 0 && r->remaining > maxSize) {
lua_pushnil(L);
lua_pushliteral(L, "Request body was larger than the permitted size.");
return 2;
}
if (r->method_number != M_POST && r->method_number != M_PUT)
return (0);
if (!filename) {
const char *data;
if (lua_read_body(r, &data, &size, maxSize) != OK)
return (0);
lua_pushlstring(L, data, (size_t) size);
lua_pushinteger(L, (lua_Integer) size);
return (2);
} else {
apr_status_t rc;
apr_file_t *file;
rc = apr_file_open(&file, filename, APR_CREATE | APR_FOPEN_WRITE,
APR_FPROT_OS_DEFAULT, r->pool);
lua_settop(L, 0);
if (rc == APR_SUCCESS) {
rc = lua_write_body(r, file, &size);
apr_file_close(file);
if (rc != OK) {
lua_pushboolean(L, 0);
return 1;
}
lua_pushinteger(L, (lua_Integer) size);
return (1);
} else
lua_pushboolean(L, 0);
return (1);
}
}
return (0);
}
/* wrap ap_rputs as r:puts(String) */
static int req_puts(lua_State *L)
{
request_rec *r = ap_lua_check_request_rec(L, 1);
int argc = lua_gettop(L);
int i;
for (i = 2; i <= argc; i++) {
ap_rputs(luaL_checkstring(L, i), r);
}
return 0;
}
/* wrap ap_rwrite as r:write(String) */
static int req_write(lua_State *L)
{
request_rec *r = ap_lua_check_request_rec(L, 1);
size_t n;
int rv;
const char *buf = luaL_checklstring(L, 2, &n);
rv = ap_rwrite((void *) buf, n, r);
lua_pushinteger(L, rv);
return 1;
}
/* r:addoutputfilter(name|function) */
static int req_add_output_filter(lua_State *L)
{
request_rec *r = ap_lua_check_request_rec(L, 1);
const char *name = luaL_checkstring(L, 2);
ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, APLOGNO(01485) "adding output filter %s",
name);
ap_add_output_filter(name, L, r, r->connection);
return 0;
}
/* wrap ap_construct_url as r:construct_url(String) */
static int req_construct_url(lua_State *L)
{
request_rec *r = ap_lua_check_request_rec(L, 1);
const char *name = luaL_checkstring(L, 2);
lua_pushstring(L, ap_construct_url(r->pool, name, r));
return 1;
}
/* wrap ap_escape_html r:escape_html(String) */
static int req_escape_html(lua_State *L)
{
request_rec *r = ap_lua_check_request_rec(L, 1);
const char *s = luaL_checkstring(L, 2);
lua_pushstring(L, ap_escape_html(r->pool, s));
return 1;
}
/* wrap optional ssl_var_lookup as r:ssl_var_lookup(String) */
static int req_ssl_var_lookup(lua_State *L)
{
request_rec *r = ap_lua_check_request_rec(L, 1);
const char *s = luaL_checkstring(L, 2);
const char *res = ap_lua_ssl_val(r->pool, r->server, r->connection, r,
(char *)s);
lua_pushstring(L, res);
return 1;
}
/* BEGIN dispatch mathods for request_rec fields */
/* not really a field, but we treat it like one */
static const char *req_document_root(request_rec *r)
{
return ap_document_root(r);
}
static const char *req_context_prefix(request_rec *r)
{
return ap_context_prefix(r);
}
static const char *req_context_document_root(request_rec *r)
{
return ap_context_document_root(r);
}
static char *req_uri_field(request_rec *r)
{
return r->uri;
}
static const char *req_method_field(request_rec *r)
{
return r->method;
}
static const char *req_handler_field(request_rec *r)
{
return r->handler;
}
static const char *req_proxyreq_field(request_rec *r)
{
switch (r->proxyreq) {
case PROXYREQ_NONE: return "PROXYREQ_NONE";
case PROXYREQ_PROXY: return "PROXYREQ_PROXY";
case PROXYREQ_REVERSE: return "PROXYREQ_REVERSE";
case PROXYREQ_RESPONSE: return "PROXYREQ_RESPONSE";
default: return NULL;
}
}
static const char *req_hostname_field(request_rec *r)
{
return r->hostname;
}
static const char *req_args_field(request_rec *r)
{
return r->args;
}
static const char *req_path_info_field(request_rec *r)
{
return r->path_info;
}
static const char *req_canonical_filename_field(request_rec *r)
{
return r->canonical_filename;
}
static const char *req_filename_field(request_rec *r)
{
return r->filename;
}
static const char *req_user_field(request_rec *r)
{
return r->user;
}
static const char *req_unparsed_uri_field(request_rec *r)
{
return r->unparsed_uri;
}
static const char *req_ap_auth_type_field(request_rec *r)
{
return r->ap_auth_type;
}
static const char *req_content_encoding_field(request_rec *r)
{
return r->content_encoding;
}
static const char *req_content_type_field(request_rec *r)
{
return r->content_type;
}
static const char *req_range_field(request_rec *r)
{
return r->range;
}
static const char *req_protocol_field(request_rec *r)
{
return r->protocol;
}
static const char *req_the_request_field(request_rec *r)
{
return r->the_request;
}
static const char *req_log_id_field(request_rec *r)
{
return r->log_id;
}
static const char *req_useragent_ip_field(request_rec *r)
{
return r->useragent_ip;
}
static int req_remaining_field(request_rec *r)
{
return r->remaining;
}
static int req_status_field(request_rec *r)
{
return r->status;
}
static int req_assbackwards_field(request_rec *r)
{
return r->assbackwards;
}
static req_table_t* req_headers_in(request_rec *r)
{
req_table_t* t = apr_palloc(r->pool, sizeof(req_table_t));
t->r = r;
t->t = r->headers_in;
t->n = "headers_in";
return t;
}
static req_table_t* req_headers_out(request_rec *r)
{
req_table_t* t = apr_palloc(r->pool, sizeof(req_table_t));
t->r = r;
t->t = r->headers_out;
t->n = "headers_out";
return t;
}
static req_table_t* req_err_headers_out(request_rec *r)
{
req_table_t* t = apr_palloc(r->pool, sizeof(req_table_t));
t->r = r;
t->t = r->err_headers_out;
t->n = "err_headers_out";
return t;
}
static req_table_t* req_subprocess_env(request_rec *r)
{
req_table_t* t = apr_palloc(r->pool, sizeof(req_table_t));
t->r = r;
t->t = r->subprocess_env;
t->n = "subprocess_env";
return t;
}
static req_table_t* req_notes(request_rec *r)
{
req_table_t* t = apr_palloc(r->pool, sizeof(req_table_t));
t->r = r;
t->t = r->notes;
t->n = "notes";
return t;
}
static int req_ssl_is_https_field(request_rec *r)
{
return ap_lua_ssl_is_https(r->connection);
}
static int req_ap_get_server_port(request_rec *r)
{
return (int) ap_get_server_port(r);
}
static int lua_ap_rflush (lua_State *L) {
int returnValue;
request_rec *r;
luaL_checktype(L, 1, LUA_TUSERDATA);
r = ap_lua_check_request_rec(L, 1);
returnValue = ap_rflush(r);
lua_pushboolean(L, (returnValue == 0));
return 1;
}
static const char* lua_ap_options(request_rec* r)
{
int opts;
opts = ap_allow_options(r);
return apr_psprintf(r->pool, "%s %s %s %s %s %s", (opts&OPT_INDEXES) ? "Indexes" : "", (opts&OPT_INCLUDES) ? "Includes" : "", (opts&OPT_SYM_LINKS) ? "FollowSymLinks" : "", (opts&OPT_EXECCGI) ? "ExecCGI" : "", (opts&OPT_MULTI) ? "MultiViews" : "", (opts&OPT_ALL) == OPT_ALL ? "All" : "" );
}
static const char* lua_ap_allowoverrides(request_rec* r)
{
int opts;
opts = ap_allow_overrides(r);
if ( (opts & OR_ALL) == OR_ALL) {
return "All";
}
else if (opts == OR_NONE) {
return "None";
}
return apr_psprintf(r->pool, "%s %s %s %s %s", (opts & OR_LIMIT) ? "Limit" : "", (opts & OR_OPTIONS) ? "Options" : "", (opts & OR_FILEINFO) ? "FileInfo" : "", (opts & OR_AUTHCFG) ? "AuthCfg" : "", (opts & OR_INDEXES) ? "Indexes" : "" );
}
static int lua_ap_started(request_rec* r)
{
return (int)(ap_scoreboard_image->global->restart_time / 1000000);
}
static const char* lua_ap_basic_auth_pw(request_rec* r)
{
const char* pw = NULL;
ap_get_basic_auth_pw(r, &pw);
return pw ? pw : "";
}
static int lua_ap_limit_req_body(request_rec* r)
{
return (int) ap_get_limit_req_body(r);
}
static int lua_ap_is_initial_req(request_rec *r)
{
return ap_is_initial_req(r);
}
static int lua_ap_some_auth_required(request_rec *r)
{
return ap_some_auth_required(r);
}
static int lua_ap_sendfile(lua_State *L)
{
apr_finfo_t file_info;
const char *filename;
request_rec *r;
luaL_checktype(L, 1, LUA_TUSERDATA);
luaL_checktype(L, 2, LUA_TSTRING);
r = ap_lua_check_request_rec(L, 1);
filename = lua_tostring(L, 2);
apr_stat(&file_info, filename, APR_FINFO_MIN, r->pool);
if (file_info.filetype == APR_NOFILE || file_info.filetype == APR_DIR) {
lua_pushboolean(L, 0);
}
else {
apr_size_t sent;
apr_status_t rc;
apr_file_t *file;
rc = apr_file_open(&file, filename, APR_READ, APR_OS_DEFAULT,
r->pool);
if (rc == APR_SUCCESS) {
ap_send_fd(file, r, 0, (apr_size_t)file_info.size, &sent);
apr_file_close(file);
lua_pushinteger(L, sent);
}
else {
lua_pushboolean(L, 0);
}
}
return (1);
}
/*
* lua_apr_b64encode; r:encode_base64(string) - encodes a string to Base64
* format
*/
static int lua_apr_b64encode(lua_State *L)
{
const char *plain;
char *encoded;
size_t plain_len, encoded_len;
request_rec *r;
r = ap_lua_check_request_rec(L, 1);
luaL_checktype(L, 2, LUA_TSTRING);
plain = lua_tolstring(L, 2, &plain_len);
encoded_len = apr_base64_encode_len(plain_len);
if (encoded_len) {
encoded = apr_palloc(r->pool, encoded_len);
encoded_len = apr_base64_encode(encoded, plain, plain_len);
if (encoded_len > 0 && encoded[encoded_len - 1] == '\0')
encoded_len--;
lua_pushlstring(L, encoded, encoded_len);
return 1;
}
return 0;
}
/*
* lua_apr_b64decode; r:decode_base64(string) - decodes a Base64 string
*/
static int lua_apr_b64decode(lua_State *L)
{
const char *encoded;
char *plain;
size_t encoded_len, decoded_len;
request_rec *r;
r = ap_lua_check_request_rec(L, 1);
luaL_checktype(L, 2, LUA_TSTRING);
encoded = lua_tolstring(L, 2, &encoded_len);
decoded_len = apr_base64_decode_len(encoded);
if (decoded_len) {
plain = apr_palloc(r->pool, decoded_len);
decoded_len = apr_base64_decode(plain, encoded);
if (decoded_len > 0 && plain[decoded_len - 1] == '\0')
decoded_len--;
lua_pushlstring(L, plain, decoded_len);
return 1;
}
return 0;
}
/*
* lua_ap_unescape; r:unescape(string) - Unescapes an URL-encoded string
*/
static int lua_ap_unescape(lua_State *L)
{
const char *escaped;
char *plain;
size_t x,
y;
request_rec *r;
r = ap_lua_check_request_rec(L, 1);
luaL_checktype(L, 2, LUA_TSTRING);
escaped = lua_tolstring(L, 2, &x);
plain = apr_pstrdup(r->pool, escaped);
y = ap_unescape_urlencoded(plain);
if (!y) {
lua_pushstring(L, plain);
return 1;
}
return 0;
}
/*
* lua_ap_escape; r:escape(string) - URL-escapes a string
*/
static int lua_ap_escape(lua_State *L)
{
const char *plain;
char *escaped;
size_t x;
request_rec *r;
r = ap_lua_check_request_rec(L, 1);
luaL_checktype(L, 2, LUA_TSTRING);
plain = lua_tolstring(L, 2, &x);
escaped = ap_escape_urlencoded(r->pool, plain);
lua_pushstring(L, escaped);
return 1;
}
/*
* lua_apr_md5; r:md5(string) - Calculates an MD5 digest of a string
*/
static int lua_apr_md5(lua_State *L)
{
const char *buffer;
char *result;
size_t len;
request_rec *r;
r = ap_lua_check_request_rec(L, 1);
luaL_checktype(L, 2, LUA_TSTRING);
buffer = lua_tolstring(L, 2, &len);
result = ap_md5_binary(r->pool, (const unsigned char *)buffer, len);
lua_pushstring(L, result);
return 1;
}
/*
* lua_apr_sha1; r:sha1(string) - Calculates the SHA1 digest of a string
*/
static int lua_apr_sha1(lua_State *L)
{
unsigned char digest[APR_SHA1_DIGESTSIZE];
apr_sha1_ctx_t sha1;
const char *buffer;
char *result;
size_t len;
request_rec *r;
r = ap_lua_check_request_rec(L, 1);
luaL_checktype(L, 2, LUA_TSTRING);
result = apr_pcalloc(r->pool, sizeof(digest) * 2 + 1);
buffer = lua_tolstring(L, 2, &len);
apr_sha1_init(&sha1);
apr_sha1_update(&sha1, buffer, len);
apr_sha1_final(digest, &sha1);
ap_bin2hex(digest, sizeof(digest), result);
lua_pushstring(L, result);
return 1;
}
/*
* lua_apr_htpassword; r:htpassword(string [, algorithm [, cost]]) - Creates
* a htpassword hash from a string
*/
static int lua_apr_htpassword(lua_State *L)
{
passwd_ctx ctx = { 0 };
request_rec *r;
r = ap_lua_check_request_rec(L, 1);
luaL_checktype(L, 2, LUA_TSTRING);
ctx.passwd = apr_pstrdup(r->pool, lua_tostring(L, 2));
ctx.alg = luaL_optinteger(L, 3, ALG_APMD5);
ctx.cost = luaL_optinteger(L, 4, 0);
ctx.pool = r->pool;
ctx.out = apr_pcalloc(r->pool, MAX_PASSWD_LEN);
ctx.out_len = MAX_PASSWD_LEN;
if (mk_password_hash(&ctx)) {
lua_pushboolean(L, 0);
lua_pushstring(L, ctx.errstr);
return 2;
} else {
lua_pushstring(L, ctx.out);
}
return 1;
}
/*
* lua_apr_touch; r:touch(string [, time]) - Sets mtime of a file
*/
static int lua_apr_touch(lua_State *L)
{
request_rec *r;
const char *path;
apr_status_t status;
apr_time_t mtime;
r = ap_lua_check_request_rec(L, 1);
luaL_checktype(L, 2, LUA_TSTRING);
path = lua_tostring(L, 2);
mtime = (apr_time_t)luaL_optnumber(L, 3, (lua_Number)apr_time_now());
status = apr_file_mtime_set(path, mtime, r->pool);
lua_pushboolean(L, (status == 0));
return 1;
}
/*
* lua_apr_mkdir; r:mkdir(string [, permissions]) - Creates a directory
*/
static int lua_apr_mkdir(lua_State *L)
{
request_rec *r;
const char *path;