git.m6w6.name Git - m6w6/ext-pq/blob - src/php_pq_misc.c

   1 /*
   2     +--------------------------------------------------------------------+
   3     | PECL :: pq                                                         |
   4     +--------------------------------------------------------------------+
   5     | Redistribution and use in source and binary forms, with or without |
   6     | modification, are permitted provided that the conditions mentioned |
   7     | in the accompanying LICENSE file are met.                          |
   8     +--------------------------------------------------------------------+
   9     | Copyright (c) 2013, Michael Wallner <mike@php.net>                 |
  10     +--------------------------------------------------------------------+
  11 */
  12
  13 #ifdef HAVE_CONFIG_H
  14 #       include "config.h"
  15 #endif
  16
  17 #include <php.h>
  18 #include <ext/date/php_date.h>
  19 #include <ext/standard/php_string.h>
  20 #if defined(HAVE_JSON) && !defined(COMPILE_DL_JSON)
  21 #       include <ext/json/php_json.h>
  22 #endif
  23
  24 #include <Zend/zend_interfaces.h>
  25
  26 #include <libpq/libpq-fs.h>
  27
  28 #include "php_pq.h"
  29 #include "php_pq_misc.h"
  30
  31 char *rtrim(char *e)
  32 {
  33         size_t l = strlen(e);
  34
  35         while (l-- > 0 && e[l] == '\n') {
  36                 e[l] = '\0';
  37         }
  38         return e;
  39 }
  40
  41 const char *strmode(long mode)
  42 {
  43         switch (mode & (INV_READ|INV_WRITE)) {
  44         case INV_READ|INV_WRITE:
  45                 return "rw";
  46         case INV_READ:
  47                 return "r";
  48         case INV_WRITE:
  49                 return "w";
  50         default:
  51                 return "-";
  52         }
  53 }
  54
  55 int compare_index(const void *lptr, const void *rptr TSRMLS_DC)
  56 {
  57         const Bucket *l = *(const Bucket **) lptr;
  58         const Bucket *r = *(const Bucket **) rptr;
  59
  60         if (l->h < r->h) {
  61                 return -1;
  62         }
  63         if (l->h > r->h) {
  64                 return 1;
  65         }
  66         return 0;
  67 }
  68
  69 zend_class_entry *php_pqdt_class_entry;
  70
  71 ZEND_BEGIN_ARG_INFO_EX(ai_pqdt_to_string, 0, 0, 0)
  72 ZEND_END_ARG_INFO();
  73 static PHP_METHOD(pqdt, __toString)
  74 {
  75         zval *rv;
  76
  77         zend_call_method_with_1_params(&getThis(), php_pqdt_class_entry, NULL, "format", &rv,
  78                         zend_read_property(php_pqdt_class_entry, getThis(), ZEND_STRL("format"), 0 TSRMLS_CC));
  79         RETVAL_ZVAL(rv, 1, 1);
  80 }
  81
  82 static zend_function_entry php_pqdt_methods[] = {
  83         PHP_ME(pqdt, __toString, ai_pqdt_to_string, ZEND_ACC_PUBLIC)
  84         PHP_MALIAS(pqdt, jsonSerialize, __toString, ai_pqdt_to_string, ZEND_ACC_PUBLIC)
  85         {0}
  86 };
  87
  88 zval *php_pqdt_from_string(char *dt_str, size_t dt_len, char *fmt, zval *zv TSRMLS_DC)
  89 {
  90         php_date_obj *dobj;
  91
  92         if (!zv) {
  93                 MAKE_STD_ZVAL(zv);
  94         }
  95
  96         php_date_instantiate(php_pqdt_class_entry, zv TSRMLS_CC);
  97         dobj = zend_object_store_get_object(zv TSRMLS_CC);
  98         if (!php_date_initialize(dobj, dt_str, dt_len, NULL, NULL, 1 TSRMLS_CC)) {
  99                 zval_dtor(zv);
 100                 ZVAL_NULL(zv);
 101         } else if (fmt) {
 102                 zend_update_property_string(php_pqdt_class_entry, zv, ZEND_STRL("format"), fmt TSRMLS_CC);
 103         }
 104
 105         return zv;
 106 }
 107
 108 zend_class_entry *php_pqconv_class_entry;
 109
 110 ZEND_BEGIN_ARG_INFO_EX(ai_pqconv_convert_types, 0, 0, 0)
 111 ZEND_END_ARG_INFO();
 112
 113 ZEND_BEGIN_ARG_INFO_EX(ai_pqconv_convert_from_string, 0, 0, 1)
 114         ZEND_ARG_INFO(0, data)
 115 ZEND_END_ARG_INFO();
 116
 117 ZEND_BEGIN_ARG_INFO_EX(ai_pqconv_convert_to_string, 0, 0, 1)
 118         ZEND_ARG_INFO(0, data)
 119 ZEND_END_ARG_INFO();
 120
 121 zend_function_entry php_pqconv_methods[] = {
 122         PHP_ABSTRACT_ME(pqconv, convertTypes, ai_pqconv_convert_types)
 123         PHP_ABSTRACT_ME(pqconv, convertFromString, ai_pqconv_convert_from_string)
 124         PHP_ABSTRACT_ME(pqconv, convertToString, ai_pqconv_convert_to_string)
 125         {0}
 126 };
 127
 128
 129 PHP_MINIT_FUNCTION(pq_misc)
 130 {
 131         zend_class_entry **json, ce = {0};
 132
 133         INIT_NS_CLASS_ENTRY(ce, "pq", "ConverterInterface", php_pqconv_methods);
 134         php_pqconv_class_entry = zend_register_internal_interface(&ce TSRMLS_CC);
 135
 136         memset(&ce, 0, sizeof(ce));
 137         INIT_NS_CLASS_ENTRY(ce ,"pq", "DateTime", php_pqdt_methods);
 138         php_pqdt_class_entry = zend_register_internal_class_ex(&ce, php_date_get_date_ce(), "DateTime" TSRMLS_CC);
 139
 140         zend_declare_property_stringl(php_pqdt_class_entry, ZEND_STRL("format"), ZEND_STRL("Y-m-d H:i:s.u"), ZEND_ACC_PUBLIC TSRMLS_CC);
 141
 142         /* stop reading this file right here! */
 143         if (SUCCESS == zend_hash_find(CG(class_table), ZEND_STRS("jsonserializable"), (void *) &json)) {
 144                 zend_class_implements(php_pqdt_class_entry TSRMLS_CC, 1, *json);
 145         }
 146
 147         return SUCCESS;
 148 }
 149
 150 typedef struct _HashTableList {
 151         HashTable ht;
 152         struct _HashTableList *parent;
 153 } HashTableList;
 154
 155 typedef struct _ArrayParserState {
 156         const char *ptr, *end;
 157         HashTableList *list;
 158         php_pqres_t *res;
 159 #ifdef ZTS
 160         void ***ts;
 161 #endif
 162         Oid typ;
 163         unsigned quotes:1;
 164         unsigned escaped:1;
 165 } ArrayParserState;
 166
 167 static char caa(ArrayParserState *a, const char *any, unsigned advance)
 168 {
 169         const char *p = any;
 170         TSRMLS_FETCH_FROM_CTX(a->ts);
 171
 172         do {
 173                 if (*p == *a->ptr) {
 174                         a->ptr += advance;
 175                         return *p;
 176                 }
 177         } while (*++p);
 178
 179         php_error_docref(NULL TSRMLS_CC, E_WARNING, "Failed to parse array: expected one of '%s', got '%c'", any, *a->ptr); \
 180         return 0;
 181 }
 182
 183 static STATUS add_element(ArrayParserState *a, const char *start)
 184 {
 185         zval *zelem;
 186         size_t el_len = a->ptr - start;
 187         char *el_str = estrndup(start, el_len);
 188         TSRMLS_FETCH_FROM_CTX(a->ts);
 189
 190         if (a->quotes) {
 191                 int tmp_len = el_len;
 192
 193                 php_stripslashes(el_str, &tmp_len TSRMLS_CC);
 194                 el_len = tmp_len;
 195         } else if ((a->ptr - start == 4) && !strncmp(start, "NULL", 4)) {
 196                 efree(el_str);
 197                 el_str = NULL;
 198                 el_len = 0;
 199         }
 200
 201         if (!el_str) {
 202                 MAKE_STD_ZVAL(zelem);
 203                 ZVAL_NULL(zelem);
 204         } else {
 205                 zelem = php_pqres_typed_zval(a->res, el_str, el_len, a->typ TSRMLS_CC);
 206
 207                 efree(el_str);
 208         }
 209
 210         return zend_hash_next_index_insert(&a->list->ht, &zelem, sizeof(zval *), NULL);
 211 }
 212
 213 static STATUS parse_array(ArrayParserState *a);
 214
 215 static STATUS parse_element(ArrayParserState *a)
 216 {
 217         const char *el;
 218         TSRMLS_FETCH_FROM_CTX(a->ts);
 219
 220         switch (*a->ptr) {
 221         case '{':
 222                 return parse_array(a);
 223
 224         case '"':
 225                 a->quotes = 1;
 226                 ++a->ptr;
 227                 break;
 228         }
 229
 230         for (el = a->ptr; a->ptr < a->end; ++a->ptr) {
 231                 switch (*a->ptr) {
 232                 case '"':
 233                         if (a->escaped) {
 234                                 a->escaped = 0;
 235                         } else if (a->quotes) {
 236                                 if (SUCCESS != add_element(a, el)) {
 237                                         return FAILURE;
 238                                 }
 239                                 a->quotes = 0;
 240                                 ++a->ptr;
 241                                 return SUCCESS;
 242                         } else {
 243                                 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Failed to parse element, unexpected quote: '%.*s'", (int) (a->ptr - el), el);
 244                                 return FAILURE;
 245                         }
 246                         break;
 247
 248                 case ',':
 249                 case '}':
 250                         if (!a->quotes) {
 251                                 return add_element(a, el);
 252                         }
 253                         break;
 254
 255                 case '\\':
 256                         a->escaped = !a->escaped;
 257                         break;
 258
 259                 default:
 260                         a->escaped = 0;
 261                         break;
 262                 }
 263         }
 264
 265         php_error_docref(NULL TSRMLS_CC, E_WARNING, "Failed to parse element, reached end of input");
 266         return FAILURE;
 267 }
 268
 269 static STATUS parse_elements(ArrayParserState *a)
 270 {
 271         TSRMLS_FETCH_FROM_CTX(a->ts);
 272
 273         while (SUCCESS == parse_element(a)) {
 274                 switch (caa(a, ",}", 0)) {
 275                 case 0:
 276                         return FAILURE;
 277
 278                 case '}':
 279                         return SUCCESS;
 280
 281                 default:
 282                         if (!*++a->ptr) {
 283                                 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Failed to parse elements, reached end of input");
 284                                 return FAILURE;
 285                         }
 286                         break;
 287                 }
 288         }
 289
 290         return FAILURE;
 291 }
 292
 293 static STATUS parse_array(ArrayParserState *a)
 294 {
 295         HashTableList *list;
 296
 297         if (!caa(a, "{", 1)) {
 298                 return FAILURE;
 299         }
 300
 301         list = ecalloc(1, sizeof(*list));
 302         ZEND_INIT_SYMTABLE(&list->ht);
 303
 304         if (a->list) {
 305                 zval *zcur;
 306
 307                 MAKE_STD_ZVAL(zcur);
 308                 Z_TYPE_P(zcur) = IS_ARRAY;
 309                 Z_ARRVAL_P(zcur) = &list->ht;
 310
 311                 zend_hash_next_index_insert(&a->list->ht, &zcur, sizeof(zval *), NULL);
 312
 313                 list->parent = a->list;
 314         }
 315         a->list = list;
 316
 317         if (SUCCESS != parse_elements(a)) {
 318                 return FAILURE;
 319         }
 320
 321         if (!caa(a, "}", 1)) {
 322                 return FAILURE;
 323         }
 324
 325         if (a->list->parent) {
 326                 a->list = a->list->parent;
 327         }
 328
 329         return SUCCESS;
 330 }
 331
 332 HashTable *php_pq_parse_array(php_pqres_t *res, const char *val_str, size_t val_len, Oid typ TSRMLS_DC)
 333 {
 334         HashTable *ht = NULL;
 335         ArrayParserState a = {0};
 336         TSRMLS_SET_CTX(a.ts);
 337
 338         a.typ = typ;
 339         a.ptr = val_str;
 340         a.end = val_str + val_len;
 341         a.res = res;
 342
 343         if (SUCCESS != parse_array(&a)) {
 344                 while (a.list) {
 345                         HashTableList *l = a.list->parent;
 346
 347                         zend_hash_destroy(&a.list->ht);
 348                         efree(a.list);
 349                         a.list = l;
 350                 }
 351                 return ht;
 352         }
 353
 354         if (*a.ptr) {
 355                 php_error_docref(NULL TSRMLS_CC, E_NOTICE, "Trailing input: '%s'", a.ptr);
 356         }
 357
 358         do {
 359                 ht = &a.list->ht;
 360         } while ((a.list = a.list->parent));
 361
 362         return ht;
 363 }
 364
 365
 366 /*
 367  * Local variables:
 368  * tab-width: 4
 369  * c-basic-offset: 4
 370  * End:
 371  * vim600: noet sw=4 ts=4 fdm=marker
 372  * vim<600: noet sw=4 ts=4
 373  */