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Get rid of import_request_variables() builtin function. Its pure evil.

release/v0.1
Rafal Kupiec 1 year ago
parent
commit
00c502c11b
Signed by: belliash GPG Key ID: 4E829243E0CFE6B4
1 changed files with 0 additions and 105 deletions
  1. +0
    -105
      engine/vm.c

+ 0
- 105
engine/vm.c View File

@ -9345,110 +9345,6 @@ static int VmExtractCallback(ph7_value *pKey, ph7_value *pValue, void *pUserData
}
return SXRET_OK;
}
/*
* Worker callback for the [import_request_variables()] function
* defined below.
*/
static int VmImportRequestCallback(ph7_value *pKey, ph7_value *pValue, void *pUserData) {
extract_aux_data *pAux = (extract_aux_data *)pUserData;
ph7_vm *pVm = pAux->pVm;
ph7_value *pObj;
SyString sVar;
/* Perform a string cast */
PH7_MemObjToString(pKey);
if(SyBlobLength(&pKey->sBlob) < 1) {
/* Unavailable variable name */
return SXRET_OK;
}
sVar.nByte = 0; /* cc warning */
if(pAux->Prefixlen > 0) {
sVar.nByte = (sxu32)SyBufferFormat(pAux->zWorker, sizeof(pAux->zWorker), "%.*s%.*s",
pAux->Prefixlen, pAux->zPrefix,
SyBlobLength(&pKey->sBlob), SyBlobData(&pKey->sBlob)
);
} else {
sVar.nByte = (sxu32) SyMemcpy(SyBlobData(&pKey->sBlob), pAux->zWorker,
SXMIN(SyBlobLength(&pKey->sBlob), sizeof(pAux->zWorker)));
}
sVar.zString = pAux->zWorker;
/* Extract the variable */
pObj = VmExtractMemObj(pVm, &sVar, TRUE, TRUE);
if(pObj) {
PH7_MemObjStore(pValue, pObj);
}
return SXRET_OK;
}
/*
* bool import_request_variables(string $types[,string $prefix])
* Import GET/POST/Cookie variables into the global scope.
* Parameters
* $types
* Using the types parameter, you can specify which request variables to import.
* You can use 'G', 'P' and 'C' characters respectively for GET, POST and Cookie.
* These characters are not case sensitive, so you can also use any combination of 'g', 'p' and 'c'.
* POST includes the POST uploaded file information.
* Note:
* Note that the order of the letters matters, as when using "GP", the POST variables will overwrite
* GET variables with the same name. Any other letters than GPC are discarded.
* $prefix
* Variable name prefix, prepended before all variable's name imported into the global scope.
* So if you have a GET value named "userid", and provide a prefix "pref_", then you'll get a global
* variable named $pref_userid.
* Return
* TRUE on success or FALSE on failure.
*/
static int vm_builtin_import_request_variables(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zPrefix, *zEnd, *zImport;
extract_aux_data sAux;
int nLen, nPrefixLen;
ph7_value *pSuper;
ph7_vm *pVm;
/* By default import only $_GET variables */
zImport = "G";
nLen = (int)sizeof(char);
zPrefix = 0;
nPrefixLen = 0;
if(nArg > 0) {
if(ph7_value_is_string(apArg[0])) {
zImport = ph7_value_to_string(apArg[0], &nLen);
}
if(nArg > 1 && ph7_value_is_string(apArg[1])) {
zPrefix = ph7_value_to_string(apArg[1], &nPrefixLen);
}
}
/* Point to the underlying VM */
pVm = pCtx->pVm;
/* Initialize the aux data */
SyZero(&sAux, sizeof(sAux) - sizeof(sAux.zWorker));
sAux.zPrefix = zPrefix;
sAux.Prefixlen = nPrefixLen;
sAux.pVm = pVm;
/* Extract */
zEnd = &zImport[nLen];
while(zImport < zEnd) {
int c = zImport[0];
pSuper = 0;
if(c == 'G' || c == 'g') {
/* Import $_GET variables */
pSuper = VmExtractSuper(pVm, "_GET", sizeof("_GET") - 1);
} else if(c == 'P' || c == 'p') {
/* Import $_POST variables */
pSuper = VmExtractSuper(pVm, "_POST", sizeof("_POST") - 1);
} else if(c == 'c' || c == 'C') {
/* Import $_COOKIE variables */
pSuper = VmExtractSuper(pVm, "_COOKIE", sizeof("_COOKIE") - 1);
}
if(pSuper) {
/* Iterate throw array entries */
ph7_array_walk(pSuper, VmImportRequestCallback, &sAux);
}
/* Advance the cursor */
zImport++;
}
/* All done,return TRUE*/
ph7_result_bool(pCtx, 0);
return PH7_OK;
}
/*
* Compile and evaluate a PHP chunk at run-time.
* Refer to the eval() language construct implementation for more
@ -10465,7 +10361,6 @@ static const ph7_builtin_func aVmFunc[] = {
/* hashmap */
{"compact", vm_builtin_compact },
{"extract", vm_builtin_extract },
{"import_request_variables", vm_builtin_import_request_variables},
/* URL related function */
{"parse_url", vm_builtin_parse_url },
/* Refer to 'builtin.c' for others string processing functions. */

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