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 = NULL;
  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         if (rv) {
  80                 RETVAL_ZVAL(rv, 1, 1);
  81         }
  82 }
  83
  84 static zend_function_entry php_pqdt_methods[] = {
  85         PHP_ME(pqdt, __toString, ai_pqdt_to_string, ZEND_ACC_PUBLIC)
  86         PHP_MALIAS(pqdt, jsonSerialize, __toString, ai_pqdt_to_string, ZEND_ACC_PUBLIC)
  87         {0}
  88 };
  89
  90 zval *php_pqdt_from_string(char *dt_str, size_t dt_len, char *fmt, zval *zv TSRMLS_DC)
  91 {
  92         php_date_obj *dobj;
  93
  94         if (!zv) {
  95                 MAKE_STD_ZVAL(zv);
  96         }
  97
  98         php_date_instantiate(php_pqdt_class_entry, zv TSRMLS_CC);
  99         dobj = zend_object_store_get_object(zv TSRMLS_CC);
 100         if (!php_date_initialize(dobj, dt_str, dt_len, NULL, NULL, 1 TSRMLS_CC)) {
 101                 zval_dtor(zv);
 102                 ZVAL_NULL(zv);
 103         } else if (fmt) {
 104                 zend_update_property_string(php_pqdt_class_entry, zv, ZEND_STRL("format"), fmt TSRMLS_CC);
 105         }
 106
 107         return zv;
 108 }
 109
 110 void php_pqdt_to_string(zval *zdt, const char *format, char **str_buf, size_t *str_len TSRMLS_DC)
 111 {
 112         zval rv;
 113
 114         INIT_PZVAL(&rv);
 115         ZVAL_NULL(&rv);
 116
 117         if (Z_OBJ_HT_P(zdt)->cast_object
 118         &&      SUCCESS == Z_OBJ_HT_P(zdt)->cast_object(zdt, &rv, IS_STRING TSRMLS_CC)
 119         ) {
 120                 *str_len = Z_STRLEN(rv);
 121                 *str_buf = Z_STRVAL(rv);
 122         } else if (instanceof_function(Z_OBJCE_P(zdt), php_date_get_date_ce() TSRMLS_CC)) {
 123                 zval *rv = NULL, *zfmt;
 124
 125                 MAKE_STD_ZVAL(zfmt);
 126                 ZVAL_STRING(zfmt, format, 1);
 127                 zend_call_method_with_1_params(&zdt, Z_OBJCE_P(zdt), NULL, "format", &rv, zfmt);
 128                 zval_ptr_dtor(&zfmt);
 129
 130                 if (rv) {
 131                         if (Z_TYPE_P(rv) == IS_STRING) {
 132                                 *str_len = Z_STRLEN_P(rv);
 133                                 *str_buf = estrndup(Z_STRVAL_P(rv), *str_len);
 134                         }
 135                         zval_ptr_dtor(&rv);
 136                 }
 137         }
 138 }
 139
 140 zend_class_entry *php_pqconv_class_entry;
 141
 142 ZEND_BEGIN_ARG_INFO_EX(ai_pqconv_convert_types, 0, 0, 0)
 143 ZEND_END_ARG_INFO();
 144
 145 ZEND_BEGIN_ARG_INFO_EX(ai_pqconv_convert_from_string, 0, 0, 2)
 146         ZEND_ARG_INFO(0, data)
 147         ZEND_ARG_INFO(0, type)
 148 ZEND_END_ARG_INFO();
 149
 150 ZEND_BEGIN_ARG_INFO_EX(ai_pqconv_convert_to_string, 0, 0, 2)
 151         ZEND_ARG_INFO(0, data)
 152         ZEND_ARG_INFO(0, type)
 153 ZEND_END_ARG_INFO();
 154
 155 zend_function_entry php_pqconv_methods[] = {
 156         PHP_ABSTRACT_ME(pqconv, convertTypes, ai_pqconv_convert_types)
 157         PHP_ABSTRACT_ME(pqconv, convertFromString, ai_pqconv_convert_from_string)
 158         PHP_ABSTRACT_ME(pqconv, convertToString, ai_pqconv_convert_to_string)
 159         {0}
 160 };
 161
 162
 163 PHP_MINIT_FUNCTION(pq_misc)
 164 {
 165         zend_class_entry **json, ce = {0};
 166
 167         INIT_NS_CLASS_ENTRY(ce, "pq", "Converter", php_pqconv_methods);
 168         php_pqconv_class_entry = zend_register_internal_interface(&ce TSRMLS_CC);
 169
 170         memset(&ce, 0, sizeof(ce));
 171         INIT_NS_CLASS_ENTRY(ce ,"pq", "DateTime", php_pqdt_methods);
 172         php_pqdt_class_entry = zend_register_internal_class_ex(&ce, php_date_get_date_ce(), "DateTime" TSRMLS_CC);
 173
 174         zend_declare_property_stringl(php_pqdt_class_entry, ZEND_STRL("format"), ZEND_STRL("Y-m-d H:i:s.uO"), ZEND_ACC_PUBLIC TSRMLS_CC);
 175
 176         /* stop reading this file right here! */
 177         if (SUCCESS == zend_hash_find(CG(class_table), ZEND_STRS("jsonserializable"), (void *) &json)) {
 178                 zend_class_implements(php_pqdt_class_entry TSRMLS_CC, 1, *json);
 179         }
 180
 181         return SUCCESS;
 182 }
 183
 184 typedef struct _HashTableList {
 185         HashTable ht;
 186         struct _HashTableList *parent;
 187 } HashTableList;
 188
 189 typedef struct _ArrayParserState {
 190         const char *ptr, *end;
 191         HashTableList *list;
 192         php_pqres_t *res;
 193 #ifdef ZTS
 194         void ***ts;
 195 #endif
 196         Oid typ;
 197         unsigned quotes:1;
 198         unsigned escaped:1;
 199 } ArrayParserState;
 200
 201 static char caa(ArrayParserState *a, const char *any, unsigned advance)
 202 {
 203         const char *p = any;
 204         TSRMLS_FETCH_FROM_CTX(a->ts);
 205
 206         do {
 207                 if (*p == *a->ptr) {
 208                         a->ptr += advance;
 209                         return *p;
 210                 }
 211         } while (*++p);
 212
 213         php_error_docref(NULL TSRMLS_CC, E_WARNING, "Failed to parse array: expected one of '%s', got '%c'", any, *a->ptr); \
 214         return 0;
 215 }
 216
 217 static STATUS add_element(ArrayParserState *a, const char *start)
 218 {
 219         zval *zelem;
 220         size_t el_len = a->ptr - start;
 221         char *el_str = estrndup(start, el_len);
 222         TSRMLS_FETCH_FROM_CTX(a->ts);
 223
 224         if (a->quotes) {
 225                 int tmp_len = el_len;
 226
 227                 php_stripslashes(el_str, &tmp_len TSRMLS_CC);
 228                 el_len = tmp_len;
 229         } else if ((a->ptr - start == 4) && !strncmp(start, "NULL", 4)) {
 230                 efree(el_str);
 231                 el_str = NULL;
 232                 el_len = 0;
 233         }
 234
 235         if (!el_str) {
 236                 MAKE_STD_ZVAL(zelem);
 237                 ZVAL_NULL(zelem);
 238         } else {
 239                 zelem = php_pqres_typed_zval(a->res, el_str, el_len, a->typ TSRMLS_CC);
 240
 241                 efree(el_str);
 242         }
 243
 244         return zend_hash_next_index_insert(&a->list->ht, &zelem, sizeof(zval *), NULL);
 245 }
 246
 247 static STATUS parse_array(ArrayParserState *a);
 248
 249 static STATUS parse_element(ArrayParserState *a)
 250 {
 251         const char *el;
 252         TSRMLS_FETCH_FROM_CTX(a->ts);
 253
 254         switch (*a->ptr) {
 255         case '{':
 256                 return parse_array(a);
 257
 258         case '"':
 259                 a->quotes = 1;
 260                 ++a->ptr;
 261                 break;
 262         }
 263
 264         for (el = a->ptr; a->ptr < a->end; ++a->ptr) {
 265                 switch (*a->ptr) {
 266                 case '"':
 267                         if (a->escaped) {
 268                                 a->escaped = 0;
 269                         } else if (a->quotes) {
 270                                 if (SUCCESS != add_element(a, el)) {
 271                                         return FAILURE;
 272                                 }
 273                                 a->quotes = 0;
 274                                 ++a->ptr;
 275                                 return SUCCESS;
 276                         } else {
 277                                 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Failed to parse element, unexpected quote: '%.*s'", (int) (a->ptr - el), el);
 278                                 return FAILURE;
 279                         }
 280                         break;
 281
 282                 case ',':
 283                 case '}':
 284                         if (!a->quotes) {
 285                                 return add_element(a, el);
 286                         }
 287                         break;
 288
 289                 case '\\':
 290                         a->escaped = !a->escaped;
 291                         break;
 292
 293                 default:
 294                         a->escaped = 0;
 295                         break;
 296                 }
 297         }
 298
 299         php_error_docref(NULL TSRMLS_CC, E_WARNING, "Failed to parse element, reached end of input");
 300         return FAILURE;
 301 }
 302
 303 static STATUS parse_elements(ArrayParserState *a)
 304 {
 305         TSRMLS_FETCH_FROM_CTX(a->ts);
 306
 307         while (SUCCESS == parse_element(a)) {
 308                 switch (caa(a, ",}", 0)) {
 309                 case 0:
 310                         return FAILURE;
 311
 312                 case '}':
 313                         return SUCCESS;
 314
 315                 default:
 316                         if (!*++a->ptr) {
 317                                 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Failed to parse elements, reached end of input");
 318                                 return FAILURE;
 319                         }
 320                         break;
 321                 }
 322         }
 323
 324         return FAILURE;
 325 }
 326
 327 static STATUS parse_array(ArrayParserState *a)
 328 {
 329         HashTableList *list;
 330
 331         if (!caa(a, "{", 1)) {
 332                 return FAILURE;
 333         }
 334
 335         list = ecalloc(1, sizeof(*list));
 336         ZEND_INIT_SYMTABLE(&list->ht);
 337
 338         if (a->list) {
 339                 zval *zcur;
 340
 341                 MAKE_STD_ZVAL(zcur);
 342                 Z_TYPE_P(zcur) = IS_ARRAY;
 343                 Z_ARRVAL_P(zcur) = &list->ht;
 344
 345                 zend_hash_next_index_insert(&a->list->ht, &zcur, sizeof(zval *), NULL);
 346
 347                 list->parent = a->list;
 348         }
 349         a->list = list;
 350
 351         if (SUCCESS != parse_elements(a)) {
 352                 return FAILURE;
 353         }
 354
 355         if (!caa(a, "}", 1)) {
 356                 return FAILURE;
 357         }
 358
 359         if (a->list->parent) {
 360                 a->list = a->list->parent;
 361         }
 362
 363         return SUCCESS;
 364 }
 365
 366 HashTable *php_pq_parse_array(php_pqres_t *res, const char *val_str, size_t val_len, Oid typ TSRMLS_DC)
 367 {
 368         HashTable *ht = NULL;
 369         ArrayParserState a = {0};
 370         TSRMLS_SET_CTX(a.ts);
 371
 372         a.typ = typ;
 373         a.ptr = val_str;
 374         a.end = val_str + val_len;
 375         a.res = res;
 376
 377         if (SUCCESS != parse_array(&a)) {
 378                 while (a.list) {
 379                         HashTableList *l = a.list->parent;
 380
 381                         zend_hash_destroy(&a.list->ht);
 382                         efree(a.list);
 383                         a.list = l;
 384                 }
 385                 return ht;
 386         }
 387
 388         if (*a.ptr) {
 389                 php_error_docref(NULL TSRMLS_CC, E_NOTICE, "Trailing input: '%s'", a.ptr);
 390         }
 391
 392         do {
 393                 ht = &a.list->ht;
 394         } while ((a.list = a.list->parent));
 395
 396         return ht;
 397 }
 398
 399
 400 /*
 401  * Local variables:
 402  * tab-width: 4
 403  * c-basic-offset: 4
 404  * End:
 405  * vim600: noet sw=4 ts=4 fdm=marker
 406  * vim<600: noet sw=4 ts=4
 407  */