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redis_commands.c
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redis_commands.c
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/* -*- Mode: C; tab-width: 4 -*- */
/*
+----------------------------------------------------------------------+
| Copyright (c) 1997-2009 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Original Author: Michael Grunder <michael.grunder@gmail.com |
| Maintainer: Nicolas Favre-Felix <n.favre-felix@owlient.eu> |
+----------------------------------------------------------------------+
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "redis_commands.h"
#include "php_network.h"
#ifndef PHP_WIN32
#include <netinet/tcp.h> /* TCP_KEEPALIVE */
#else
#include <winsock.h>
#endif
#include <zend_exceptions.h>
/* Georadius sort type */
typedef enum geoSortType {
SORT_NONE,
SORT_ASC,
SORT_DESC
} geoSortType;
/* Georadius store type */
typedef enum geoStoreType {
STORE_NONE,
STORE_COORD,
STORE_DIST
} geoStoreType;
/* Georadius options structure */
typedef struct geoOptions {
int withcoord;
int withdist;
int withhash;
long count;
geoSortType sort;
geoStoreType store;
zend_string *key;
} geoOptions;
/* Local passthrough macro for command construction. Given that these methods
* are generic (so they work whether the caller is Redis or RedisCluster) we
* will always have redis_sock, slot*, and */
#define REDIS_CMD_SPPRINTF(ret, kw, fmt, ...) \
redis_spprintf(redis_sock, slot, ret, kw, fmt, ##__VA_ARGS__)
/* Generic commands based on method signature and what kind of things we're
* processing. Lots of Redis commands take something like key, value, or
* key, value long. Each unique signature like this is written only once */
/* A command that takes no arguments */
int redis_empty_cmd(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock,
char *kw, char **cmd, int *cmd_len, short *slot,
void **ctx)
{
*cmd_len = REDIS_CMD_SPPRINTF(cmd, kw, "");
return SUCCESS;
}
/* Helper to construct a raw command. Given that the cluster and non cluster
* versions are different (RedisCluster needs an additional argument to direct
* the command) we take the start of our array and count */
int redis_build_raw_cmd(zval *z_args, int argc, char **cmd, int *cmd_len)
{
smart_string cmdstr = {0};
int i;
/* Make sure our first argument is a string */
if (Z_TYPE(z_args[0]) != IS_STRING) {
php_error_docref(NULL, E_WARNING,
"When sending a 'raw' command, the first argument must be a string!");
return FAILURE;
}
/* Initialize our command string */
redis_cmd_init_sstr(&cmdstr, argc-1, Z_STRVAL(z_args[0]), Z_STRLEN(z_args[0]));
for (i = 1; i < argc; i++) {
switch (Z_TYPE(z_args[i])) {
case IS_STRING:
redis_cmd_append_sstr(&cmdstr, Z_STRVAL(z_args[i]),
Z_STRLEN(z_args[i]));
break;
case IS_LONG:
redis_cmd_append_sstr_long(&cmdstr,Z_LVAL(z_args[i]));
break;
case IS_DOUBLE:
redis_cmd_append_sstr_dbl(&cmdstr,Z_DVAL(z_args[i]));
break;
default:
php_error_docref(NULL, E_WARNING,
"Raw command arguments must be scalar values!");
efree(cmdstr.c);
return FAILURE;
}
}
/* Push command and length to caller */
*cmd = cmdstr.c;
*cmd_len = cmdstr.len;
return SUCCESS;
}
smart_string *
redis_build_script_cmd(smart_string *cmd, int argc, zval *z_args)
{
int i;
zend_string *zstr;
if (Z_TYPE(z_args[0]) != IS_STRING) {
return NULL;
}
// Branch based on the directive
if (!strcasecmp(Z_STRVAL(z_args[0]), "flush") || !strcasecmp(Z_STRVAL(z_args[0]), "kill")) {
// Simple SCRIPT FLUSH, or SCRIPT_KILL command
REDIS_CMD_INIT_SSTR_STATIC(cmd, argc, "SCRIPT");
redis_cmd_append_sstr(cmd, Z_STRVAL(z_args[0]), Z_STRLEN(z_args[0]));
} else if (!strcasecmp(Z_STRVAL(z_args[0]), "load")) {
// Make sure we have a second argument, and it's not empty. If it is
// empty, we can just return an empty array (which is what Redis does)
if (argc < 2 || Z_TYPE(z_args[1]) != IS_STRING || Z_STRLEN(z_args[1]) < 1) {
return NULL;
}
// Format our SCRIPT LOAD command
REDIS_CMD_INIT_SSTR_STATIC(cmd, argc, "SCRIPT");
redis_cmd_append_sstr(cmd, "LOAD", sizeof("LOAD") - 1);
redis_cmd_append_sstr(cmd, Z_STRVAL(z_args[1]), Z_STRLEN(z_args[1]));
} else if (!strcasecmp(Z_STRVAL(z_args[0]), "exists")) {
// Make sure we have a second argument
if (argc < 2) {
return NULL;
}
/* Construct our SCRIPT EXISTS command */
REDIS_CMD_INIT_SSTR_STATIC(cmd, argc, "SCRIPT");
redis_cmd_append_sstr(cmd, "EXISTS", sizeof("EXISTS") - 1);
for (i = 1; i < argc; ++i) {
zstr = zval_get_string(&z_args[i]);
redis_cmd_append_sstr(cmd, ZSTR_VAL(zstr), ZSTR_LEN(zstr));
zend_string_release(zstr);
}
} else {
/* Unknown directive */
return NULL;
}
return cmd;
}
/* Command that takes one optional string */
int redis_opt_str_cmd(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock, char *kw,
char **cmd, int *cmd_len, short *slot, void **ctx)
{
char *arg = NULL;
size_t arglen;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "|s!", &arg, &arglen) == FAILURE) {
return FAILURE;
}
if (arg != NULL) {
*cmd_len = REDIS_CMD_SPPRINTF(cmd, kw, "s", arg, arglen);
} else {
*cmd_len = REDIS_CMD_SPPRINTF(cmd, kw, "");
}
return SUCCESS;
}
/* Generic command where we just take a string and do nothing to it*/
int redis_str_cmd(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock, char *kw,
char **cmd, int *cmd_len, short *slot, void **ctx)
{
char *arg;
size_t arg_len;
// Parse args
if (zend_parse_parameters(ZEND_NUM_ARGS(), "s", &arg, &arg_len)
==FAILURE)
{
return FAILURE;
}
// Build the command without molesting the string
*cmd_len = REDIS_CMD_SPPRINTF(cmd, kw, "s", arg, arg_len);
return SUCCESS;
}
/* Key, long, zval (serialized) */
int redis_key_long_val_cmd(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock,
char *kw, char **cmd, int *cmd_len, short *slot,
void **ctx)
{
char *key = NULL;
size_t key_len;
zend_long expire;
zval *z_val;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "slz", &key, &key_len,
&expire, &z_val) == FAILURE)
{
return FAILURE;
}
*cmd_len = REDIS_CMD_SPPRINTF(cmd, kw, "klv", key, key_len, expire, z_val);
return SUCCESS;
}
/* Generic key, long, string (unserialized) */
int redis_key_long_str_cmd(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock,
char *kw, char **cmd, int *cmd_len, short *slot,
void **ctx)
{
char *key, *val;
size_t key_len, val_len;
zend_long lval;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "sls", &key, &key_len,
&lval, &val, &val_len) == FAILURE)
{
return FAILURE;
}
*cmd_len = REDIS_CMD_SPPRINTF(cmd, kw, "kds", key, key_len, (int)lval, val, val_len);
return SUCCESS;
}
/* Generic command construction when we just take a key and value */
int redis_kv_cmd(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock,
char *kw, char **cmd, int *cmd_len, short *slot,
void **ctx)
{
char *key;
size_t key_len;
zval *z_val;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "sz", &key, &key_len,
&z_val) == FAILURE)
{
return FAILURE;
}
*cmd_len = REDIS_CMD_SPPRINTF(cmd, kw, "kv", key, key_len, z_val);
return SUCCESS;
}
/* Generic command that takes a key and an unserialized value */
int redis_key_str_cmd(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock,
char *kw, char **cmd, int *cmd_len, short *slot,
void **ctx)
{
char *key, *val;
size_t key_len, val_len;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "ss", &key, &key_len,
&val, &val_len) == FAILURE)
{
return FAILURE;
}
// Construct command
*cmd_len = REDIS_CMD_SPPRINTF(cmd, kw, "ks", key, key_len, val, val_len);
return SUCCESS;
}
/* Key, string, string without serialization (ZCOUNT, ZREMRANGEBYSCORE) */
int redis_key_str_str_cmd(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock,
char *kw, char **cmd, int *cmd_len, short *slot,
void **ctx)
{
char *k, *v1, *v2;
size_t klen, v1len, v2len;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "sss", &k, &klen,
&v1, &v1len, &v2, &v2len) == FAILURE)
{
return FAILURE;
}
*cmd_len = REDIS_CMD_SPPRINTF(cmd, kw, "kss", k, klen, v1, v1len, v2, v2len);
// Success!
return SUCCESS;
}
/* Generic command that takes two keys */
int redis_key_key_cmd(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock,
char *kw, char **cmd, int *cmd_len, short *slot,
void **ctx)
{
char *k1, *k2;
size_t k1len, k2len;
int k1free, k2free;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "ss", &k1, &k1len,
&k2, &k2len) == FAILURE)
{
return FAILURE;
}
// Prefix both keys
k1free = redis_key_prefix(redis_sock, &k1, &k1len);
k2free = redis_key_prefix(redis_sock, &k2, &k2len);
// If a slot is requested, we can test that they hash the same
if (slot) {
// Slots where these keys resolve
short slot1 = cluster_hash_key(k1, k1len);
short slot2 = cluster_hash_key(k2, k2len);
// Check if Redis would give us a CROSSLOT error
if (slot1 != slot2) {
php_error_docref(0, E_WARNING, "Keys don't hash to the same slot");
if (k1free) efree(k1);
if (k2free) efree(k2);
return FAILURE;
}
// They're both the same
*slot = slot1;
}
/* Send keys as normal strings because we manually prefixed to check against
* cross slot error. */
*cmd_len = REDIS_CMD_SPPRINTF(cmd, kw, "ss", k1, k1len, k2, k2len);
/* Clean keys up if we prefixed */
if (k1free) efree(k1);
if (k2free) efree(k2);
return SUCCESS;
}
/* Generic command construction where we take a key and a long */
int redis_key_long_cmd(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock,
char *kw, char **cmd, int *cmd_len, short *slot,
void **ctx)
{
char *key;
size_t keylen;
zend_long lval;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "sl", &key, &keylen, &lval)
==FAILURE)
{
return FAILURE;
}
*cmd_len = REDIS_CMD_SPPRINTF(cmd, kw, "kl", key, keylen, lval);
// Success!
return SUCCESS;
}
/* long, long */
int redis_long_long_cmd(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock,
char *kw, char **cmd, int *cmd_len, short *slot,
void **ctx)
{
zend_long v1, v2;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "ll", &v1, &v2)
== FAILURE)
{
return FAILURE;
}
*cmd_len = REDIS_CMD_SPPRINTF(cmd, kw, "ll", v1, v2);
return SUCCESS;
}
/* key, long, long */
int redis_key_long_long_cmd(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock,
char *kw, char **cmd, int *cmd_len, short *slot,
void **ctx)
{
char *key;
size_t key_len;
zend_long val1, val2;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "sll", &key, &key_len,
&val1, &val2) == FAILURE)
{
return FAILURE;
}
*cmd_len = REDIS_CMD_SPPRINTF(cmd, kw, "kll", key, key_len, val1, val2);
return SUCCESS;
}
/* Generic command where we take a single key */
int redis_key_cmd(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock,
char *kw, char **cmd, int *cmd_len, short *slot,
void **ctx)
{
char *key;
size_t key_len;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "s", &key, &key_len)
==FAILURE)
{
return FAILURE;
}
*cmd_len = REDIS_CMD_SPPRINTF(cmd, kw, "k", key, key_len);
return SUCCESS;
}
int redis_flush_cmd(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock,
char *kw, char **cmd, int *cmd_len, short *slot, void **ctx)
{
zend_bool async = 0;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "|b", &async) == FAILURE) {
return FAILURE;
}
if (async) {
*cmd_len = REDIS_CMD_SPPRINTF(cmd, kw, "s", "ASYNC", sizeof("ASYNC") - 1);
} else {
*cmd_len = REDIS_CMD_SPPRINTF(cmd, kw, "");
}
return SUCCESS;
}
/* Generic command where we take a key and a double */
int redis_key_dbl_cmd(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock,
char *kw, char **cmd, int *cmd_len, short *slot,
void **ctx)
{
char *key;
size_t key_len;
double val;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "sd", &key, &key_len,
&val) == FAILURE)
{
return FAILURE;
}
*cmd_len = REDIS_CMD_SPPRINTF(cmd, kw, "kf", key, key_len, val);
return SUCCESS;
}
/* Generic to construct SCAN and variant commands */
int redis_fmt_scan_cmd(char **cmd, REDIS_SCAN_TYPE type, char *key, int key_len,
long it, char *pat, int pat_len, long count)
{
static char *kw[] = {"SCAN","SSCAN","HSCAN","ZSCAN"};
int argc;
smart_string cmdstr = {0};
// Figure out our argument count
argc = 1 + (type!=TYPE_SCAN) + (pat_len>0?2:0) + (count>0?2:0);
redis_cmd_init_sstr(&cmdstr, argc, kw[type], strlen(kw[type]));
// Append our key if it's not a regular SCAN command
if (type != TYPE_SCAN) {
redis_cmd_append_sstr(&cmdstr, key, key_len);
}
// Append cursor
redis_cmd_append_sstr_long(&cmdstr, it);
// Append count if we've got one
if (count) {
redis_cmd_append_sstr(&cmdstr,"COUNT",sizeof("COUNT")-1);
redis_cmd_append_sstr_long(&cmdstr, count);
}
// Append pattern if we've got one
if (pat_len) {
redis_cmd_append_sstr(&cmdstr,"MATCH",sizeof("MATCH")-1);
redis_cmd_append_sstr(&cmdstr,pat,pat_len);
}
// Push command to the caller, return length
*cmd = cmdstr.c;
return cmdstr.len;
}
/* ZRANGEBYSCORE/ZREVRANGEBYSCORE */
#define IS_WITHSCORES_ARG(s, l) \
(l == sizeof("withscores") - 1 && !strncasecmp(s, "withscores", l))
#define IS_LIMIT_ARG(s, l) \
(l == sizeof("limit") - 1 && !strncasecmp(s,"limit", l))
/* ZRANGE/ZREVRANGE */
int redis_zrange_cmd(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock,
char *kw, char **cmd, int *cmd_len, int *withscores,
short *slot, void **ctx)
{
char *key;
size_t key_len;
zend_long start, end;
zend_string *zkey;
zval *z_ws = NULL, *z_ele;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "sll|z", &key, &key_len,
&start, &end, &z_ws) == FAILURE)
{
return FAILURE;
}
// Clear withscores arg
*withscores = 0;
/* Accept ['withscores' => true], or the legacy `true` value */
if (z_ws) {
if (Z_TYPE_P(z_ws) == IS_ARRAY) {
ZEND_HASH_FOREACH_STR_KEY_VAL(Z_ARRVAL_P(z_ws), zkey, z_ele) {
ZVAL_DEREF(z_ele);
if (IS_WITHSCORES_ARG(ZSTR_VAL(zkey), ZSTR_LEN(zkey))) {
*withscores = zval_is_true(z_ele);
break;
}
} ZEND_HASH_FOREACH_END();
} else if (Z_TYPE_P(z_ws) == IS_TRUE) {
*withscores = Z_TYPE_P(z_ws) == IS_TRUE;
}
}
if (*withscores) {
*cmd_len = REDIS_CMD_SPPRINTF(cmd, kw, "kdds", key, key_len, start, end,
"WITHSCORES", sizeof("WITHSCORES") - 1);
} else {
*cmd_len = REDIS_CMD_SPPRINTF(cmd, kw, "kdd", key, key_len, start, end);
}
return SUCCESS;
}
int redis_zrangebyscore_cmd(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock,
char *kw, char **cmd, int *cmd_len, int *withscores,
short *slot, void **ctx)
{
char *key, *start, *end;
int has_limit = 0;
long offset, count;
size_t key_len, start_len, end_len;
zval *z_opt=NULL, *z_ele;
zend_string *zkey;
zend_ulong idx;
HashTable *ht_opt;
PHPREDIS_NOTUSED(idx);
if (zend_parse_parameters(ZEND_NUM_ARGS(), "sss|a", &key, &key_len,
&start, &start_len, &end, &end_len, &z_opt)
==FAILURE)
{
return FAILURE;
}
// Check for an options array
if (z_opt && Z_TYPE_P(z_opt) == IS_ARRAY) {
ht_opt = Z_ARRVAL_P(z_opt);
ZEND_HASH_FOREACH_KEY_VAL(ht_opt, idx, zkey, z_ele) {
/* All options require a string key type */
if (!zkey) continue;
ZVAL_DEREF(z_ele);
/* Check for withscores and limit */
if (IS_WITHSCORES_ARG(ZSTR_VAL(zkey), ZSTR_LEN(zkey))) {
*withscores = zval_is_true(z_ele);
} else if (IS_LIMIT_ARG(ZSTR_VAL(zkey), ZSTR_LEN(zkey)) && Z_TYPE_P(z_ele) == IS_ARRAY) {
HashTable *htlimit = Z_ARRVAL_P(z_ele);
zval *zoff, *zcnt;
/* We need two arguments (offset and count) */
if ((zoff = zend_hash_index_find(htlimit, 0)) != NULL &&
(zcnt = zend_hash_index_find(htlimit, 1)) != NULL
) {
/* Set our limit if we can get valid longs from both args */
offset = zval_get_long(zoff);
count = zval_get_long(zcnt);
has_limit = 1;
}
}
} ZEND_HASH_FOREACH_END();
}
// Construct our command
if (*withscores) {
if (has_limit) {
*cmd_len = REDIS_CMD_SPPRINTF(cmd, kw, "ksssdds", key, key_len,
start, start_len, end, end_len, "LIMIT", 5, offset, count,
"WITHSCORES", 10);
} else {
*cmd_len = REDIS_CMD_SPPRINTF(cmd, kw, "ksss", key, key_len, start,
start_len, end, end_len, "WITHSCORES", 10);
}
} else {
if (has_limit) {
*cmd_len = REDIS_CMD_SPPRINTF(cmd, kw, "ksssdd", key, key_len, start,
start_len, end, end_len, "LIMIT", 5, offset, count);
} else {
*cmd_len = REDIS_CMD_SPPRINTF(cmd, kw, "kss", key, key_len, start,
start_len, end, end_len);
}
}
return SUCCESS;
}
/* ZUNIONSTORE, ZINTERSTORE */
int redis_zinter_cmd(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock,
char *kw, char **cmd, int *cmd_len, short *slot,
void **ctx)
{
char *key, *agg_op=NULL;
int key_free, argc = 2, keys_count;
size_t key_len, agg_op_len = 0;
zval *z_keys, *z_weights=NULL, *z_ele;
HashTable *ht_keys, *ht_weights=NULL;
smart_string cmdstr = {0};
// Parse args
if (zend_parse_parameters(ZEND_NUM_ARGS(), "sa|a!s", &key,
&key_len, &z_keys, &z_weights, &agg_op,
&agg_op_len) == FAILURE)
{
return FAILURE;
}
// Grab our keys
ht_keys = Z_ARRVAL_P(z_keys);
// Nothing to do if there aren't any
if ((keys_count = zend_hash_num_elements(ht_keys)) == 0) {
return FAILURE;
} else {
argc += keys_count;
}
// Handle WEIGHTS
if (z_weights != NULL) {
ht_weights = Z_ARRVAL_P(z_weights);
if (zend_hash_num_elements(ht_weights) != keys_count) {
php_error_docref(NULL, E_WARNING,
"WEIGHTS and keys array should be the same size!");
return FAILURE;
}
// "WEIGHTS" + key count
argc += keys_count + 1;
}
// AGGREGATE option
if (agg_op_len != 0) {
if (strncasecmp(agg_op, "SUM", sizeof("SUM")) &&
strncasecmp(agg_op, "MIN", sizeof("MIN")) &&
strncasecmp(agg_op, "MAX", sizeof("MAX")))
{
php_error_docref(NULL, E_WARNING,
"Invalid AGGREGATE option provided!");
return FAILURE;
}
// "AGGREGATE" + type
argc += 2;
}
// Prefix key
key_free = redis_key_prefix(redis_sock, &key, &key_len);
// Start building our command
redis_cmd_init_sstr(&cmdstr, argc, kw, strlen(kw));
redis_cmd_append_sstr(&cmdstr, key, key_len);
redis_cmd_append_sstr_int(&cmdstr, keys_count);
// Set our slot, free the key if we prefixed it
CMD_SET_SLOT(slot,key,key_len);
if (key_free) efree(key);
// Process input keys
ZEND_HASH_FOREACH_VAL(ht_keys, z_ele) {
zend_string *zstr = zval_get_string(z_ele);
char *key = ZSTR_VAL(zstr);
size_t key_len = ZSTR_LEN(zstr);
// Prefix key if necissary
int key_free = redis_key_prefix(redis_sock, &key, &key_len);
// If we're in Cluster mode, verify the slot is the same
if (slot && *slot != cluster_hash_key(key,key_len)) {
php_error_docref(NULL, E_WARNING,
"All keys don't hash to the same slot!");
efree(cmdstr.c);
zend_string_release(zstr);
if (key_free) efree(key);
return FAILURE;
}
// Append this input set
redis_cmd_append_sstr(&cmdstr, key, key_len);
// Cleanup
zend_string_release(zstr);
if (key_free) efree(key);
} ZEND_HASH_FOREACH_END();
// Weights
if (ht_weights != NULL) {
redis_cmd_append_sstr(&cmdstr, "WEIGHTS", sizeof("WEIGHTS")-1);
// Process our weights
ZEND_HASH_FOREACH_VAL(ht_weights, z_ele) {
// Ignore non numeric args unless they're inf/-inf
ZVAL_DEREF(z_ele);
switch (Z_TYPE_P(z_ele)) {
case IS_LONG:
redis_cmd_append_sstr_long(&cmdstr, Z_LVAL_P(z_ele));
break;
case IS_DOUBLE:
redis_cmd_append_sstr_dbl(&cmdstr, Z_DVAL_P(z_ele));
break;
case IS_STRING: {
double dval;
zend_long lval;
zend_uchar type = is_numeric_string(Z_STRVAL_P(z_ele), Z_STRLEN_P(z_ele), &lval, &dval, 0);
if (type == IS_LONG) {
redis_cmd_append_sstr_long(&cmdstr, lval);
break;
} else if (type == IS_DOUBLE) {
redis_cmd_append_sstr_dbl(&cmdstr, dval);
break;
} else if (strncasecmp(Z_STRVAL_P(z_ele), "-inf", sizeof("-inf") - 1) == 0 ||
strncasecmp(Z_STRVAL_P(z_ele), "+inf", sizeof("+inf") - 1) == 0 ||
strncasecmp(Z_STRVAL_P(z_ele), "inf", sizeof("inf") - 1) == 0
) {
redis_cmd_append_sstr(&cmdstr, Z_STRVAL_P(z_ele), Z_STRLEN_P(z_ele));
break;
}
// fall through
}
default:
php_error_docref(NULL, E_WARNING,
"Weights must be numeric or '-inf','inf','+inf'");
efree(cmdstr.c);
return FAILURE;
}
} ZEND_HASH_FOREACH_END();
}
// AGGREGATE
if (agg_op_len != 0) {
redis_cmd_append_sstr(&cmdstr, "AGGREGATE", sizeof("AGGREGATE")-1);
redis_cmd_append_sstr(&cmdstr, agg_op, agg_op_len);
}
// Push out values
*cmd = cmdstr.c;
*cmd_len = cmdstr.len;
return SUCCESS;
}
/* SUBSCRIBE/PSUBSCRIBE */
int redis_subscribe_cmd(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock,
char *kw, char **cmd, int *cmd_len, short *slot,
void **ctx)
{
zval *z_arr, *z_chan;
HashTable *ht_chan;
smart_string cmdstr = {0};
subscribeContext *sctx = emalloc(sizeof(subscribeContext));
size_t key_len;
int key_free;
char *key;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "af", &z_arr,
&(sctx->cb), &(sctx->cb_cache)) == FAILURE)
{
efree(sctx);
return FAILURE;
}
ht_chan = Z_ARRVAL_P(z_arr);
sctx->kw = kw;
sctx->argc = zend_hash_num_elements(ht_chan);
if (sctx->argc == 0) {
efree(sctx);
return FAILURE;
}
// Start command construction
redis_cmd_init_sstr(&cmdstr, sctx->argc, kw, strlen(kw));
// Iterate over channels
ZEND_HASH_FOREACH_VAL(ht_chan, z_chan) {
// We want to deal with strings here
zend_string *zstr = zval_get_string(z_chan);
// Grab channel name, prefix if required
key = ZSTR_VAL(zstr);
key_len = ZSTR_LEN(zstr);
key_free = redis_key_prefix(redis_sock, &key, &key_len);
// Add this channel
redis_cmd_append_sstr(&cmdstr, key, key_len);
zend_string_release(zstr);
// Free our key if it was prefixed
if (key_free) efree(key);
} ZEND_HASH_FOREACH_END();
// Push values out
*cmd_len = cmdstr.len;
*cmd = cmdstr.c;
*ctx = (void*)sctx;
// Pick a slot at random
CMD_RAND_SLOT(slot);
return SUCCESS;
}
/* UNSUBSCRIBE/PUNSUBSCRIBE */
int redis_unsubscribe_cmd(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock,
char *kw, char **cmd, int *cmd_len, short *slot,
void **ctx)
{
zval *z_arr, *z_chan;
HashTable *ht_arr;
smart_string cmdstr = {0};
subscribeContext *sctx = emalloc(sizeof(subscribeContext));
if (zend_parse_parameters(ZEND_NUM_ARGS(), "a", &z_arr) == FAILURE) {
efree(sctx);
return FAILURE;
}
ht_arr = Z_ARRVAL_P(z_arr);
sctx->argc = zend_hash_num_elements(ht_arr);
if (sctx->argc == 0) {
efree(sctx);
return FAILURE;
}
redis_cmd_init_sstr(&cmdstr, sctx->argc, kw, strlen(kw));
ZEND_HASH_FOREACH_VAL(ht_arr, z_chan) {
char *key = Z_STRVAL_P(z_chan);
size_t key_len = Z_STRLEN_P(z_chan);
int key_free;
key_free = redis_key_prefix(redis_sock, &key, &key_len);
redis_cmd_append_sstr(&cmdstr, key, key_len);
if (key_free) efree(key);
} ZEND_HASH_FOREACH_END();
// Push out vals
*cmd_len = cmdstr.len;
*cmd = cmdstr.c;
*ctx = (void*)sctx;
return SUCCESS;
}
/* ZRANGEBYLEX/ZREVRANGEBYLEX */
int redis_zrangebylex_cmd(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock,
char *kw, char **cmd, int *cmd_len, short *slot,
void **ctx)
{
char *key, *min, *max;
size_t key_len, min_len, max_len;
int argc = ZEND_NUM_ARGS();
zend_long offset, count;
/* We need either 3 or 5 arguments for this to be valid */
if (argc != 3 && argc != 5) {
php_error_docref(0, E_WARNING, "Must pass either 3 or 5 arguments");
return FAILURE;
}
if (zend_parse_parameters(argc, "sss|ll", &key, &key_len, &min, &min_len,
&max, &max_len, &offset, &count) == FAILURE)
{
return FAILURE;
}
/* min and max must start with '(' or '[', or be either '-' or '+' */
if (min_len < 1 || max_len < 1 ||
(min[0] != '(' && min[0] != '[' &&
(min[0] != '-' || min_len > 1) && (min[0] != '+' || min_len > 1)) ||
(max[0] != '(' && max[0] != '[' &&
(max[0] != '-' || max_len > 1) && (max[0] != '+' || max_len > 1)))
{
php_error_docref(0, E_WARNING,
"min and max arguments must start with '[' or '('");
return FAILURE;
}
/* Construct command */
if (argc == 3) {
*cmd_len = REDIS_CMD_SPPRINTF(cmd, kw, "kss", key, key_len, min, min_len,
max, max_len);
} else {
*cmd_len = REDIS_CMD_SPPRINTF(cmd, kw, "ksssll", key, key_len, min, min_len,
max, max_len, "LIMIT", 5, offset, count);
}
return SUCCESS;
}
/* Validate ZLEX* min/max argument strings */
static int validate_zlex_arg(const char *arg, size_t len) {
return (len > 1 && (*arg == '[' || *arg == '(')) ||
(len == 1 && (*arg == '+' || *arg == '-'));
}
/* ZLEXCOUNT/ZREMRANGEBYLEX */
int redis_gen_zlex_cmd(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock,
char *kw, char **cmd, int *cmd_len, short *slot,
void **ctx)
{
char *key, *min, *max;
size_t key_len, min_len, max_len;
/* Parse args */
if (zend_parse_parameters(ZEND_NUM_ARGS(), "sss", &key, &key_len,
&min, &min_len, &max, &max_len) == FAILURE)
{
return FAILURE;
}
/* Quick sanity check on min/max */
if (!validate_zlex_arg(min, min_len) || !validate_zlex_arg(max, max_len)) {
php_error_docref(NULL, E_WARNING,
"Min/Max args can be '-' or '+', or start with '[' or '('");
return FAILURE;
}
/* Construct command */
*cmd_len = REDIS_CMD_SPPRINTF(cmd, kw, "kss", key, key_len, min, min_len,
max, max_len);
return SUCCESS;
}
/* EVAL and EVALSHA */
int redis_eval_cmd(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock, char *kw,
char **cmd, int *cmd_len, short *slot, void **ctx)
{
char *lua;
int argc = 0;
zval *z_arr = NULL, *z_ele;
HashTable *ht_arr;
zend_long num_keys = 0;
smart_string cmdstr = {0};
size_t lua_len;
zend_string *zstr;
short prevslot = -1;
/* Parse args */
if (zend_parse_parameters(ZEND_NUM_ARGS(), "s|al", &lua, &lua_len,
&z_arr, &num_keys) == FAILURE)
{
return FAILURE;
}
/* Grab arg count */
if (z_arr != NULL) {
ht_arr = Z_ARRVAL_P(z_arr);
argc = zend_hash_num_elements(ht_arr);
}
/* EVAL[SHA] {script || sha1} {num keys} */