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r7002: added support for getting at loadparm config parameters via lpGet() in esp scripts

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lpGet takes 4 forms
    v = lpGet("type:parm");             gets a parametric variable
    v = lpGet("share", "type:parm");    gets a parametric variable on a share
    v = lpGet("parm");                  gets a global variable
    v = lpGet("share", "parm");         gets a share variable

in all cases a ejs object of the appropriate type for the variable is returned.

This commit also adds the function typeof() which returns the type of an object
This commit is contained in:
Andrew Tridgell 2005-05-27 03:58:12 +00:00 committed by Gerald (Jerry) Carter
parent a18b069f06
commit 5537a0d38d
9 changed files with 203 additions and 64 deletions
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1
source/include/structs.h
View File

@ -212,3 +212,4 @@ struct arcfour_state;
union libnet_SamDump;
struct websrv_context;
struct EspRequest;

169
source/param/loadparm.c
View File

@ -63,6 +63,7 @@
#include "librpc/gen_ndr/ndr_samr.h"
#include "librpc/gen_ndr/ndr_nbt.h"
#include "dlinklist.h"
#include "web_server/esp/esp.h"
BOOL in_client = False; /* Not in the client by default */
static BOOL bLoaded = False;
@ -105,8 +106,7 @@ static BOOL defaults_saved = False;
/* the following are used by loadparm for option lists */
typedef enum
{
P_BOOL,P_BOOLREV,P_CHAR,P_INTEGER,P_OCTAL,P_LIST,
P_STRING,P_USTRING,P_ENUM,P_SEP
P_BOOL,P_INTEGER,P_LIST,P_STRING,P_USTRING,P_ENUM,P_SEP
} parm_type;
typedef enum
@ -1853,20 +1853,14 @@ static void copy_service(service * pserviceDest, service * pserviceSource, BOOL
switch (parm_table[i].type) {
case P_BOOL:
case P_BOOLREV:
*(BOOL *)dest_ptr = *(BOOL *)src_ptr;
break;
case P_INTEGER:
case P_ENUM:
case P_OCTAL:
*(int *)dest_ptr = *(int *)src_ptr;
break;
case P_CHAR:
*(char *)dest_ptr = *(char *)src_ptr;
break;
case P_STRING:
string_set(dest_ptr,
*(char **)src_ptr);
@ -2374,23 +2368,10 @@ BOOL lp_do_parameter(int snum, const char *pszParmName, const char *pszParmValue
set_boolean(parm_ptr, pszParmValue);
break;
case P_BOOLREV:
set_boolean(parm_ptr, pszParmValue);
*(BOOL *)parm_ptr = !*(BOOL *)parm_ptr;
break;
case P_INTEGER:
*(int *)parm_ptr = atoi(pszParmValue);
break;
case P_CHAR:
*(char *)parm_ptr = *pszParmValue;
break;
case P_OCTAL:
sscanf(pszParmValue, "%o", (int *)parm_ptr);
break;
case P_LIST:
*(const char ***)parm_ptr = str_list_make(talloc_autofree_context(),
pszParmValue, NULL);
@ -2557,26 +2538,10 @@ static void print_parameter(struct parm_struct *p, void *ptr, FILE * f)
fprintf(f, "%s", BOOLSTR(*(BOOL *)ptr));
break;
case P_BOOLREV:
fprintf(f, "%s", BOOLSTR(!*(BOOL *)ptr));
break;
case P_INTEGER:
fprintf(f, "%d", *(int *)ptr);
break;
case P_CHAR:
fprintf(f, "%c", *(char *)ptr);
break;
case P_OCTAL:
if (*(int *)ptr == -1) {
fprintf(f, "-1");
} else {
fprintf(f, "0%o", *(int *)ptr);
}
break;
case P_LIST:
if ((char ***)ptr && *(char ***)ptr) {
char **list = *(char ***)ptr;
@ -2606,17 +2571,12 @@ static BOOL equal_parameter(parm_type type, void *ptr1, void *ptr2)
{
switch (type) {
case P_BOOL:
case P_BOOLREV:
return (*((BOOL *)ptr1) == *((BOOL *)ptr2));
case P_INTEGER:
case P_ENUM:
case P_OCTAL:
return (*((int *)ptr1) == *((int *)ptr2));
case P_CHAR:
return (*((char *)ptr1) == *((char *)ptr2));
case P_LIST:
return str_list_equal((const char **)(*(char ***)ptr1),
(const char **)(*(char ***)ptr2));
@ -2702,14 +2662,9 @@ static BOOL is_default(int i)
return strequal(parm_table[i].def.svalue,
*(char **)parm_table[i].ptr);
case P_BOOL:
case P_BOOLREV:
return parm_table[i].def.bvalue ==
*(BOOL *)parm_table[i].ptr;
case P_CHAR:
return parm_table[i].def.cvalue ==
*(char *)parm_table[i].ptr;
case P_INTEGER:
case P_OCTAL:
case P_ENUM:
return parm_table[i].def.ivalue ==
*(int *)parm_table[i].ptr;
@ -2965,16 +2920,10 @@ static void lp_save_defaults(void)
}
break;
case P_BOOL:
case P_BOOLREV:
parm_table[i].def.bvalue =
*(BOOL *)parm_table[i].ptr;
break;
case P_CHAR:
parm_table[i].def.cvalue =
*(char *)parm_table[i].ptr;
break;
case P_INTEGER:
case P_OCTAL:
case P_ENUM:
parm_table[i].def.ivalue =
*(int *)parm_table[i].ptr;
@ -3355,3 +3304,117 @@ int lp_maxprintjobs(int snum)
return maxjobs;
}
/*
allow access to loadparm variables from inside esp scripts in swat
can be called in 4 ways:
v = lpGet("type:parm"); gets a parametric variable
v = lpGet("share", "type:parm"); gets a parametric variable on a share
v = lpGet("parm"); gets a global variable
v = lpGet("share", "parm"); gets a share variable
the returned variable is a ejs object. It is an array object for lists.
*/
int esp_lpGet(struct EspRequest *ep, int argc, char **argv)
{
struct parm_struct *parm = NULL;
void *parm_ptr = NULL;
int i;
if (argc < 1) return -1;
if (argc == 2) {
/* its a share parameter */
int parmnum, snum = lp_servicenumber(argv[0]);
if (snum == -1) {
return -1;
}
if (strchr(argv[1], ':')) {
/* its a parametric option on a share */
const char *type = talloc_strndup(ep, argv[1], strcspn(argv[1], ":"));
const char *option = strchr(argv[1], ':') + 1;
const char *value;
if (type == NULL || option == NULL) return -1;
value = get_parametrics(snum, type, option);
if (value == NULL) return -1;
espSetReturnString(ep, value);
return 0;
}
/* find a share parameter */
parmnum = map_parameter(argv[1]);
if (parmnum == -1) {
return -1;
}
parm = &parm_table[parmnum];
if (parm->class == P_GLOBAL) {
return -1;
}
parm_ptr = ((char *)ServicePtrs[snum]) + PTR_DIFF(parm->ptr, &sDefault);
} else if (strchr(argv[0], ':')) {
/* its a global parametric option */
const char *type = talloc_strndup(ep, argv[0], strcspn(argv[0], ":"));
const char *option = strchr(argv[0], ':') + 1;
const char *value;
if (type == NULL || option == NULL) return -1;
value = get_parametrics(-1, type, option);
if (value == NULL) return -1;
espSetReturnString(ep, value);
return 0;
} else {
/* its a global parameter */
int parmnum = map_parameter(argv[0]);
if (parmnum == -1) {
return -1;
}
parm = &parm_table[parmnum];
parm_ptr = parm->ptr;
}
if (parm == NULL || parm_ptr == NULL) {
return -1;
}
/* construct and return the right type of ejs object */
switch (parm->type) {
case P_STRING:
case P_USTRING:
espSetReturnString(ep, *(char **)parm_ptr);
break;
case P_BOOL:
espSetReturn(ep, mprCreateBoolVar(*(BOOL *)parm_ptr));
break;
case P_INTEGER:
espSetReturn(ep, mprCreateIntegerVar(*(int *)parm_ptr));
break;
case P_ENUM:
for (i=0; parm->enum_list[i].name; i++) {
if (*(int *)parm_ptr == parm->enum_list[i].value) {
espSetReturnString(ep, parm->enum_list[i].name);
return 0;
}
}
return -1;
case P_LIST: {
const char **list = *(const char ***)parm_ptr;
struct MprVar var;
var = mprCreateObjVar(parm->label, 10);
for (i=0;list[i];i++) {
char idx[16];
struct MprVar val;
mprItoa(i, idx, sizeof(idx));
val = mprCreateStringVar(list[i], 1);
mprCreateProperty(&var, idx, &val);
}
espSetReturn(ep, var);
break;
case P_SEP:
return -1;
}
}
return 0;
}

72
source/web_server/calls.c Normal file
View File

@ -0,0 +1,72 @@
/*
Unix SMB/CIFS implementation.
provide hooks into C calls from esp scripts
Copyright (C) Andrew Tridgell 2005
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
#include "web_server/esp/esp.h"
/*
return the type of a variable
*/
static int esp_typeof(struct EspRequest *ep, int argc, struct MprVar **argv)
{
const struct {
MprType type;
const char *name;
} types[] = {
{ MPR_TYPE_UNDEFINED, "undefined" },
{ MPR_TYPE_NULL, "null" },
{ MPR_TYPE_BOOL, "boolean" },
{ MPR_TYPE_CFUNCTION, "function" },
{ MPR_TYPE_FLOAT, "float" },
{ MPR_TYPE_INT, "int" },
{ MPR_TYPE_INT64, "int64" },
{ MPR_TYPE_OBJECT, "object" },
{ MPR_TYPE_FUNCTION, "function" },
{ MPR_TYPE_STRING, "string" },
{ MPR_TYPE_STRING_CFUNCTION, "function" }
};
int i;
const char *type = "unknown";
if (argc != 1) return -1;
for (i=0;i<ARRAY_SIZE(types);i++) {
if (argv[0]->type == types[i].type) {
type = types[i].name;
break;
}
}
espSetReturnString(ep, type);
return 0;
}
/*
setup the C functions that be called from ejs
*/
void http_setup_ejs_functions(void)
{
espDefineStringCFunction(NULL, "lpGet", esp_lpGet, NULL);
espDefineCFunction(NULL, "typeof", esp_typeof, NULL);
}

3
source/web_server/config.mk
View File

@ -33,7 +33,8 @@ NOPROTO=YES
INIT_OBJ_FILES = \
web_server/web_server.o
ADD_OBJ_FILES = \
web_server/http.o
web_server/http.o \
web_server/calls.o
REQUIRED_SUBSYSTEMS = ESP
# End SUBSYSTEM WEB
#######################

4
source/web_server/ejs/ejs.c
View File

@ -754,7 +754,7 @@ MprVar *ejsGetReturnValue(EjsId eid)
* or "[]".
*/
void ejsDefineCFunction(EjsId eid, char *functionName, MprCFunction fn,
void ejsDefineCFunction(EjsId eid, const char *functionName, MprCFunction fn,
void *thisPtr, int flags)
{
if (eid < 0) {
@ -793,7 +793,7 @@ void ejsDefineStringCFunction(EjsId eid, const char *functionName,
* Body should not contain braces.
*/
void ejsDefineFunction(EjsId eid, char *functionName, char *args, char *body)
void ejsDefineFunction(EjsId eid, const char *functionName, char *args, char *body)
{
MprVar v;

4
source/web_server/ejs/ejs.h
View File

@ -99,9 +99,9 @@ extern MprVar *ejsGetGlobalObject(EjsId eid);
/*
* Function routines
*/
extern void ejsDefineFunction(EjsId eid, char *functionName, char *args,
extern void ejsDefineFunction(EjsId eid, const char *functionName, char *args,
char *body);
extern void ejsDefineCFunction(EjsId eid, char *functionName,
extern void ejsDefineCFunction(EjsId eid, const char *functionName,
MprCFunction fn, void *thisPtr, int flags);
extern void ejsDefineStringCFunction(EjsId eid, const char *functionName,
MprStringCFunction fn, void *thisPtr, int flags);

6
source/web_server/esp/esp.c
View File

@ -218,7 +218,7 @@ void espDestroyRequest(EspRequest *ep)
* rq = (requiredCast) espGetHandle(ep);
*/
void espDefineCFunction(EspRequest *ep, char *functionName, EspCFunction fn,
void espDefineCFunction(EspRequest *ep, const char *functionName, EspCFunction fn,
void *thisPtr)
{
mprAssert(functionName && *functionName);
@ -389,7 +389,7 @@ void espSetReturn(EspRequest *ep, MprVar value)
/******************************************************************************/
void espSetReturnString(EspRequest *ep, char *str)
void espSetReturnString(EspRequest *ep, const char *str)
{
mprAssert(ep);
@ -866,7 +866,7 @@ MprVar *espCreatePropertyValue(MprVar *obj, char *property, MprVar newValue)
/******************************************************************************/
void espDefineFunction(EspRequest *ep, char *functionName, char *args, char *body)
void espDefineFunction(EspRequest *ep, const char *functionName, char *args, char *body)
{
ejsDefineFunction(ep->eid, functionName, args, body);
}

6
source/web_server/esp/esp.h
View File

@ -159,9 +159,9 @@ extern int espProcessRequest(EspRequest *ep, const char *docPath,
/*
* Method invocation
*/
extern void espDefineCFunction(EspRequest *ep, char *functionName,
extern void espDefineCFunction(EspRequest *ep, const char *functionName,
EspCFunction fn, void *thisPtr);
extern void espDefineFunction(EspRequest *ep, char *functionName,
extern void espDefineFunction(EspRequest *ep, const char *functionName,
char *args, char *body);
extern void espDefineStringCFunction(EspRequest *ep,
const char *functionName, EspStringCFunction fn,
@ -188,7 +188,7 @@ extern EjsId espGetScriptHandle(EspRequest *ep);
extern void espRedirect(EspRequest *ep, int code, char *url);
extern void espSetHeader(EspRequest *ep, char *header,
bool allowMultiple);
extern void espSetReturnString(EspRequest *ep, char *str);
extern void espSetReturnString(EspRequest *ep, const char *str);
extern int espWrite(EspRequest *ep, char *buf, int size);
extern int espWriteString(EspRequest *ep, char *buf);
extern int espWriteFmt(EspRequest *ep, char *fmt, ...);

2
source/web_server/http.c
View File

@ -720,6 +720,8 @@ void http_process_input(struct websrv_context *web)
talloc_set_destructor(esp, esp_destructor);
http_setup_ejs_functions();
esp->req = espCreateRequest(web, web->input.url, esp->variables);
if (esp->req == NULL) goto internal_error;