Annotation of parser3/src/classes/op.C, revision 1.74
1.1 paf 1: /** @file
1.9 paf 2: Parser: parser @b operators.
1.1 paf 3:
1.70 paf 4: Copyright (c) 2001, 2002 ArtLebedev Group (http://www.artlebedev.com)
1.71 paf 5: Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
1.1 paf 6:
1.74 ! paf 7: $Id: op.C,v 1.73 2002/03/04 14:51:10 paf Exp $
1.1 paf 8: */
9:
1.13 paf 10: #include "classes.h"
1.1 paf 11: #include "pa_common.h"
12: #include "pa_request.h"
13: #include "pa_vint.h"
14: #include "pa_sql_connection.h"
15:
1.18 parser 16: // limits
17:
18: #define MAX_LOOPS 10000
19:
1.10 paf 20: // defines
21:
22: #define OP_CLASS_NAME "OP"
1.11 paf 23:
1.10 paf 24: // class
25:
26: class MOP : public Methoded {
27: public:
28: MOP(Pool& pool);
1.11 paf 29: public: // Methoded
1.10 paf 30: bool used_directly() { return true; }
1.11 paf 31: void configure_user(Request& r);
1.36 parser 32:
1.11 paf 33: private:
34: String main_sql_name;
35: String main_sql_drivers_name;
1.10 paf 36: };
37:
38: // methods
39:
1.5 paf 40: static void _if(Request& r, const String&, MethodParams *params) {
1.48 parser 41: Value& condition_code=params->as_junction(0, "condition must be expression");
1.1 paf 42:
43: bool condition=r.process(condition_code,
44: 0/*no name*/,
45: false/*don't intercept string*/).as_bool();
1.6 paf 46: if(condition)
1.34 parser 47: r.write_pass_lang(r.process(params->as_junction(1, "'then' parameter must be code")));
1.50 parser 48: else if(params->size()>2)
1.34 parser 49: r.write_pass_lang(r.process(params->as_junction(2, "'else' parameter must be code")));
1.1 paf 50: }
51:
1.5 paf 52: static void _untaint(Request& r, const String& method_name, MethodParams *params) {
1.1 paf 53: Pool& pool=r.pool();
54:
1.60 paf 55: uchar lang;
1.59 paf 56: if(params->size()==1)
57: lang=String::UL_AS_IS; // mark as simply 'tainted'. useful in html from sql
58: else {
59: const String& lang_name=params->as_string(0, "lang must be string");
1.60 paf 60: lang=untaint_lang_name2enum->get_int(lang_name);
1.59 paf 61: if(!lang)
62: throw Exception(0, 0,
63: &lang_name,
64: "invalid taint language");
65: }
1.1 paf 66:
67: {
1.59 paf 68: Value& vbody=params->as_junction(params->size()-1, "body must be code");
1.1 paf 69:
70: Temp_lang temp_lang(r, lang); // set temporarily specified ^untaint[language;
1.5 paf 71: r.write_pass_lang(r.process(vbody)); // process marking tainted with that lang
1.1 paf 72: }
73: }
74:
1.5 paf 75: static void _taint(Request& r, const String&, MethodParams *params) {
1.1 paf 76: Pool& pool=r.pool();
77:
1.60 paf 78: uchar lang;
1.1 paf 79: if(params->size()==1)
80: lang=String::UL_TAINTED; // mark as simply 'tainted'. useful in table:set
81: else {
1.48 parser 82: const String& lang_name=params->as_string(0, "lang must be string");
1.60 paf 83: lang=untaint_lang_name2enum->get_int(lang_name);
1.1 paf 84: if(!lang)
1.53 parser 85: throw Exception(0, 0,
1.3 paf 86: &lang_name,
87: "invalid taint language");
1.1 paf 88: }
89:
90: {
1.34 parser 91: Value& vbody=params->as_no_junction(params->size()-1, "body must not be code");
1.1 paf 92:
93: String result(r.pool());
94: result.append(
95: vbody.as_string(), // process marking tainted with that lang
96: lang, true); // force result language to specified
97: r.write_pass_lang(result);
98: }
99: }
100:
1.5 paf 101: static void _process(Request& r, const String& method_name, MethodParams *params) {
1.1 paf 102: // calculate pseudo file name of processed chars
103: // would be something like "/some/file(4) process"
104: char place[MAX_STRING];
105: #ifndef NO_STRING_ORIGIN
106: const Origin& origin=method_name.origin();
107: snprintf(place, MAX_STRING, "%s(%d) %s",
108: origin.file, 1+origin.line,
109: method_name.cstr());
110: #else
1.39 parser 111: strncpy(place, method_name.cstr(), MAX_STRING-1); place[MAX_STRING-1]=0;
1.1 paf 112: #endif
113:
114: VStateless_class& self_class=*r.self->get_class();
1.73 paf 115: const Method *main_method;
1.1 paf 116: {
1.73 paf 117: // temporary remove language change
118: Temp_lang temp_lang(r, String::UL_PASS_APPENDED);
1.1 paf 119: // temporary zero @main so to maybe-replace it in processed code
120: Temp_method temp_method_main(self_class, *main_method_name, 0);
121: // temporary zero @auto so it wouldn't be auto-called in Request::use_buf
122: Temp_method temp_method_auto(self_class, *auto_method_name, 0);
123:
124: // evaluate source to process
125: const String& source=
1.61 paf 126: r.process(params->as_junction(0, "body must be code")).as_string();
1.1 paf 127:
128: // process source code, append processed methods to 'self' class
129: // maybe-define new @main
1.67 paf 130: r.use_buf(
131: source.cstr(String::UL_UNSPECIFIED, r.connection(0)),
132: place,
133: &self_class);
1.1 paf 134:
1.73 paf 135: // main_method
136: main_method=self_class.get_method(*main_method_name);
137: }
138: // after restoring current-request-lang
139: // maybe-execute @main[]
140: if(main_method) {
141: // execute!
142: r.execute(*main_method->parser_code);
1.1 paf 143: }
144: }
145:
1.5 paf 146: static void _rem(Request& r, const String&, MethodParams *params) {
1.34 parser 147: params->as_junction(0, "body must be code");
1.1 paf 148: }
149:
1.5 paf 150: static void _while(Request& r, const String& method_name, MethodParams *params) {
1.1 paf 151: Pool& pool=r.pool();
152:
1.34 parser 153: Value& vcondition=params->as_junction(0, "condition must be expression");
154: Value& body=params->as_junction(1, "body must be code");
1.1 paf 155:
156: // while...
157: int endless_loop_count=0;
158: while(true) {
1.18 parser 159: if(++endless_loop_count>=MAX_LOOPS) // endless loop?
1.53 parser 160: throw Exception(0, 0,
1.1 paf 161: &method_name,
162: "endless loop detected");
163:
164: bool condition=
165: r.process(
166: vcondition,
167: 0/*no name*/,
168: false/*don't intercept string*/).as_bool();
169: if(!condition) // ...condition is true
170: break;
171:
172: // write processed body
173: r.write_pass_lang(r.process(body));
174: }
175: }
176:
1.5 paf 177: static void _use(Request& r, const String& method_name, MethodParams *params) {
1.34 parser 178: Value& vfile=params->as_no_junction(0, "file name must not be code");
1.37 parser 179: r.use_file(vfile.as_string());
1.1 paf 180: }
181:
1.5 paf 182: static void _for(Request& r, const String& method_name, MethodParams *params) {
1.1 paf 183: Pool& pool=r.pool();
1.48 parser 184: const String& var_name=params->as_string(0, "var name must be string");
185: int from=params->as_int(1, "from must be int", r);
186: int to=params->as_int(2, "to must be int", r);
1.34 parser 187: Value& body_code=params->as_junction(3, "body must be code");
1.50 parser 188: Value *delim_maybe_code=params->size()>4?¶ms->get(4):0;
1.1 paf 189:
1.57 paf 190: if(to-from>=MAX_LOOPS) // too long loop?
191: throw Exception(0, 0,
192: &method_name,
193: "endless loop detected");
194:
1.1 paf 195: bool need_delim=false;
196: VInt *vint=new(pool) VInt(pool, 0);
197: for(int i=from; i<=to; i++) {
198: vint->set_int(i);
1.56 paf 199: r.root->put_element(var_name, vint);
1.1 paf 200:
201: Value& processed_body=r.process(body_code);
1.49 parser 202: if(delim_maybe_code) { // delimiter set?
1.1 paf 203: const String *string=processed_body.get_string();
204: if(need_delim && string && string->size()) // need delim & iteration produced string?
1.49 parser 205: r.write_pass_lang(r.process(*delim_maybe_code));
1.1 paf 206: need_delim=true;
207: }
208: r.write_pass_lang(processed_body);
209: }
210: }
211:
1.15 paf 212: static void _eval(Request& r, const String& method_name, MethodParams *params) {
1.34 parser 213: Value& expr=params->as_junction(0, "need expression");
1.1 paf 214: // evaluate expresion
215: Value *result=r.process(expr,
1.16 paf 216: 0/*no name YET*/,
1.1 paf 217: true/*don't intercept string*/).as_expr_result();
1.50 parser 218: if(params->size()>1) {
1.34 parser 219: Value& fmt=params->as_no_junction(1, "fmt must not be code");
1.1 paf 220:
221: Pool& pool=r.pool();
222: String& string=*new(pool) String(pool);
223: string.APPEND_CONST(format(pool, result->as_double(), fmt.as_string().cstr()));
224: result=new(pool) VString(string);
225: }
1.16 paf 226: result->set_name(method_name);
1.1 paf 227: r.write_no_lang(*result);
228: }
229:
1.42 parser 230: static void _connect(Request& r, const String& method_name, MethodParams *params) {
1.1 paf 231: Pool& pool=r.pool();
1.63 paf 232: #ifdef RESOURCES_DEBUG
233: struct timeval mt[2];
234: #endif
1.34 parser 235: Value& url=params->as_no_junction(0, "url must not be code");
236: Value& body_code=params->as_junction(1, "body must be code");
1.1 paf 237:
1.19 parser 238: Table *protocol2driver_and_client=
1.35 parser 239: static_cast<Table *>(r.classes_conf.get(r.OP.name()));
1.11 paf 240:
1.63 paf 241: #ifdef RESOURCES_DEBUG
242: //measure:before
243: gettimeofday(&mt[0],NULL);
244: #endif
1.1 paf 245: // connect
1.67 paf 246: SQL_Connection_ptr connection=SQL_driver_manager->get_connection(
1.42 parser 247: url.as_string(), method_name, protocol2driver_and_client);
1.1 paf 248:
1.63 paf 249: #ifdef RESOURCES_DEBUG
250: //measure:after connect
251: gettimeofday(&mt[1],NULL);
252:
253: double t[2];
254: for(int i=0;i<2;i++)
255: t[i]=mt[i].tv_sec+mt[i].tv_usec/1000000.0;
256:
257: r.sql_connect_time+=t[1]-t[0];
258: #endif
1.67 paf 259: Temp_connection temp_connection(r, connection.get());
1.1 paf 260: // execute body
1.53 parser 261: try {
1.67 paf 262: r.write_assign_lang(r.process(body_code));
263:
264: } catch(...) { // process/commit problem
265: connection->mark_to_rollback();
266: /*re*/throw;
1.1 paf 267: }
268: }
269:
1.41 parser 270: #ifndef DOXYGEN
1.28 parser 271: struct Switch_data {
272: Value *searching;
273: Value *found;
274: Value *_default;
275: };
1.41 parser 276: #endif
1.28 parser 277: static void _switch(Request& r, const String&, MethodParams *params) {
278: void *backup=r.classes_conf.get(*switch_data_name);
279: Switch_data data={&r.process(params->get(0))};
280: r.classes_conf.put(*switch_data_name, &data);
281:
1.34 parser 282: r.process(params->as_junction(1, "switch cases must be code")); // and ignore result
1.28 parser 283:
284: r.classes_conf.put(*switch_data_name, backup);
285:
286: if(Value *code=data.found ? data.found : data._default)
287: r.write_pass_lang(r.process(*code));
288: }
289:
1.38 parser 290: static void _case(Request& r, const String& method_name, MethodParams *params) {
291: Pool& pool=r.pool();
292:
293: Switch_data *data=static_cast<Switch_data *>(r.classes_conf.get(*switch_data_name));
294: if(!data)
1.53 parser 295: throw Exception(0, 0,
1.38 parser 296: &method_name,
297: "without switch");
1.28 parser 298:
299: int count=params->size();
1.34 parser 300: Value *code=¶ms->as_junction(--count, "case result must be code");
1.28 parser 301: for(int i=0; i<count; i++) {
302: Value& value=r.process(params->get(i));
303:
1.36 parser 304: if(value.as_string() == *case_default_value) {
1.38 parser 305: data->_default=code;
1.28 parser 306: break;
307: }
308:
309: bool matches;
1.38 parser 310: if(data->searching->is_string())
311: matches=data->searching->as_string() == value.as_string();
1.28 parser 312: else
1.38 parser 313: matches=data->searching->as_double() == value.as_double();
1.28 parser 314:
315: if(matches) {
1.38 parser 316: data->found=code;
1.28 parser 317: break;
318: }
319: }
320: }
321:
1.63 paf 322: // cache--
323:
324: // consts
325:
326: const int DATA_STRING_SERIALIZED_VERSION=0x0001;
327:
328: // helper types
329:
330: #ifndef DOXYGEN
331: struct Data_string_serialized_prolog {
332: int version;
333: };
334: #endif
335:
1.68 paf 336: void cache_delete(const String& file_spec) {
337: file_delete(file_spec, false/*fail_on_read_problem*/);
1.63 paf 338: }
1.69 paf 339:
340: #ifndef DOXYGEN
341: struct Locked_process_and_cache_put_action_info {
342: Request *r;
343: Value *body;
344: };
345: #endif
346: static void locked_process_and_cache_put_action(int f, void *context) {
347: Locked_process_and_cache_put_action_info& info=
348: *static_cast<Locked_process_and_cache_put_action_info *>(context);
349:
350: // body->process
351: info.body=&info.r->process(*info.body);
352:
353: // result->string
354: const String& data_string=info.body->as_string();
355:
356: // string -serialize> buffer
1.63 paf 357: void *data; size_t data_size;
358: data_string.serialize(
359: sizeof(Data_string_serialized_prolog),
360: data, data_size);
361: Data_string_serialized_prolog& prolog=
362: *static_cast<Data_string_serialized_prolog *>(data);
363: prolog.version=DATA_STRING_SERIALIZED_VERSION;
1.69 paf 364:
365: // buffer -write> file
366: write(f, data, data_size);
367: }
368: Value *locked_process_and_cache_put(Request& r,
369: Value& body_code,
370: const String& file_spec) {
371: Locked_process_and_cache_put_action_info info={
372: &r,
373: &body_code,
374: };
375:
376: return file_write_action_under_lock(
377: file_spec,
378: "cache_put", locked_process_and_cache_put_action, &info,
379: false/*as_text*/,
380: false/*do_append*/,
381: false/*block*/) ? info.body : 0;
1.63 paf 382: }
383: String *cache_get(Pool& pool, const String& file_spec) {
384: void* data; size_t data_size;
1.72 paf 385: if(file_read(pool, file_spec,
1.63 paf 386: data, data_size,
387: false/*as_text*/,
1.69 paf 388: false/*fail_on_read_problem*/)
1.72 paf 389: && data_size/* ignore reads which are empty due to
390: non-unary open+lockEX conflict with lockSH */) {
1.63 paf 391:
1.72 paf 392: Data_string_serialized_prolog& prolog=
393: *static_cast<Data_string_serialized_prolog *>(data);
1.63 paf 394:
1.72 paf 395: String *result=new(pool) String(pool);
396: if(
397: data_size>=sizeof(Data_string_serialized_prolog)
398: && prolog.version==DATA_STRING_SERIALIZED_VERSION
399: && result->deserialize(
400: sizeof(Data_string_serialized_prolog), data, data_size, file_spec.cstr()))
401: return result;
402: }
1.63 paf 403:
1.72 paf 404: return 0;
1.63 paf 405: }
406: static void _cache(Request& r, const String& method_name, MethodParams *params) {
407: Pool& pool=r.pool();
408:
409: // file_spec, expires, body code
1.65 paf 410: const String &file_spec=r.absolute(params->as_string(0, "filespec must be string"));
411: if(params->size()==1) { // delete
1.68 paf 412: cache_delete(file_spec);
1.65 paf 413: return;
414: }
415:
1.63 paf 416: time_t lifespan=(time_t)params->as_double(1, "lifespan must be number", r);
417: Value& body_code=params->as_junction(2, "body must be code");
418:
419: if(lifespan) { // 'lifespan' specified? try cached copy...
420: size_t size;
421: time_t atime, mtime, ctime;
1.69 paf 422:
423: // hence we don't hope to have unary create/lockEX
424: // we need some plan to live in a life like that, so...
425: // worst races plan:
426: // A B
427: // open
428: // |open
429: // lockSH
430: // |nonblocking-lockEX fails
431: // unlockSH
432: // close, cache_get returns 0
433: // open
434: // nonblocking-lockEX succeeds; process, write, close
435: // |retry1: open
436: // ...
437: // |lockSH succeeds; ...
438:
1.63 paf 439: // {file_spec} modification time
1.69 paf 440: for(int retry=0; retry<2; retry++) {
441: if(file_stat(file_spec, size, atime, mtime, ctime, false/*no exception on error*/)) // exists?
442: if(time(0)-mtime > lifespan) // expired
443: cache_delete(file_spec);
444: else // not expired
445: if(String *cached_body=cache_get(pool, file_spec)) { // have cached copy?
446: // write it out
447: r.write_assign_lang(*cached_body);
448: // happy with it
449: return;
450: }
451:
452: // non-blocked lock; process; cache it
453: if(Value *processed_body=locked_process_and_cache_put(r, body_code, file_spec)) {
1.63 paf 454: // write it out
1.69 paf 455: r.write_assign_lang(*processed_body);
1.63 paf 456: // happy with it
457: return;
1.69 paf 458: } else { // somebody writing result right now
459: pa_sleep(0, 500000); // waiting half a second
460: retry=0; // prolonging our wait, than could cache_get it, without processing body_code
1.63 paf 461: }
1.69 paf 462: }
463: throw Exception(0, 0,
464: &file_spec,
465: "locking problem");
466: } else {
467: // 'lifespan'=0, forget cached copy
1.68 paf 468: cache_delete(file_spec);
1.69 paf 469: // process
470: Value& processed_body=r.process(body_code);
471: // write it out
472: r.write_assign_lang(processed_body);
473: // happy with it
474: return;
475: }
476: // never reached
1.63 paf 477: }
478:
1.74 ! paf 479: // also used in pa_request.C to pass param to @unhandled_exception
! 480: VHash& exception2vhash(Pool& pool, const Exception& e) {
! 481: VHash& result=*new(pool) VHash(pool);
! 482: Hash& hash=result.hash(0);
! 483: if(const String *type=e.type())
! 484: hash.put(*exception_type_part_name, new(pool) VString(*type));
! 485: if(const String *source=e.problem_source()) {
! 486: result.set_name(*source);
! 487:
! 488: hash.put(*exception_source_part_name, new(pool) VString(*source));
! 489: #ifndef NO_STRING_ORIGIN
! 490: const Origin& origin=source->origin();
! 491: hash.put(*new(pool) String(pool, "file"),
! 492: new(pool) VString(*new(pool) String(pool, origin.file)));
! 493: hash.put(*new(pool) String(pool, "lineno"),
! 494: new(pool) VInt(pool, 1+origin.line));
! 495: #endif
! 496: }
! 497: if(const char *ecomment=e.comment()) {
! 498: int comment_size=strlen(ecomment);
! 499: char *pcomment=(char *)pool.malloc(comment_size);
! 500: memcpy(pcomment, ecomment, comment_size);
! 501: hash.put(*exception_comment_part_name,
! 502: new(pool) VString(*new(pool) String(pool, pcomment, comment_size)));
! 503: }
! 504: hash.put(*exception_handled_part_name,
! 505: new(pool) VBool(pool, false));
! 506:
! 507: return result;
! 508: }
! 509:
! 510: static void _try_operator(Request& r, const String& method_name, MethodParams *params) {
! 511: Pool& pool=r.pool();
! 512:
! 513: Value& body_code=params->as_junction(0, "body_code must be code");
! 514: Value& catch_code=params->as_junction(1, "catch_code must be code");
! 515:
! 516: Value *result;
! 517:
! 518: // taking snapshot of request processing status
! 519: int stop_index=r.stack.top_index();
! 520: Value *sself=r.self, *sroot=r.root, *srcontext=r.rcontext;
! 521: WContext *swcontext=r.wcontext;
! 522: try {
! 523: result=&r.process(body_code);
! 524: } catch(const Exception& e) {
! 525: // restoring request processing status
! 526: r.stack.top_index(stop_index);
! 527: r.self=sself; r.root=sroot, r.rcontext=srcontext; r.wcontext=swcontext;
! 528:
! 529: VHash& vhash=exception2vhash(pool, e);
! 530:
! 531: Junction *junction=catch_code.get_junction();
! 532: Value *saved_exception_var_value=junction->root->get_element(*exception_var_name);
! 533: junction->root->put_element(*exception_var_name, &vhash);
! 534: result=&r.process(catch_code);
! 535: bool handled=false;
! 536: if(Value *value=static_cast<Value *>(vhash.hash(0).get(*exception_handled_part_name)))
! 537: handled=value->as_bool();
! 538: junction->root->put_element(*exception_var_name, saved_exception_var_value);
! 539:
! 540: if(!handled)
! 541: throw(e); // rethrow
! 542: }
! 543: // write it out
! 544: r.write_pass_lang(*result);
! 545: }
! 546:
! 547: static void _throw_operator(Request& r, const String& method_name, MethodParams *params) {
! 548: Pool& pool=r.pool();
! 549:
! 550: if(params->size()==1) {
! 551: Value& param0=params->get(0);
! 552: if(Hash *hash=param0.get_hash(&method_name)) {
! 553: const String *type=0;
! 554: if(Value *value=static_cast<Value *>(hash->get(*exception_type_part_name)))
! 555: type=&value->as_string();
! 556: const String *source=0;
! 557: if(Value *value=static_cast<Value *>(hash->get(*exception_source_part_name)))
! 558: source=&value->as_string();
! 559: const char *comment=0;
! 560: if(Value *value=
! 561: static_cast<Value *>(hash->get(*exception_comment_part_name)))
! 562: comment=value->as_string().cstr();
! 563:
! 564: throw Exception(type, 0,
! 565: source?source:&method_name,
! 566: comment);
! 567: } else
! 568: throw Exception(0, 0,
! 569: &method_name,
! 570: "one-param version has hash param");
! 571: } else {
! 572: const String& type=params->as_string(0, "type must be string");
! 573: const String& source=params->as_string(1, "source must be string");
! 574: const char *comment=params->as_string(2, "comment must be string").cstr();
! 575: throw Exception(&type, 0,
! 576: &source,
! 577: comment);
! 578: }
! 579: }
! 580:
1.10 paf 581: // constructor
582:
1.11 paf 583: MOP::MOP(Pool& apool) : Methoded(apool),
584: main_sql_name(apool, MAIN_SQL_NAME),
585: main_sql_drivers_name(apool, MAIN_SQL_DRIVERS_NAME)
586: {
1.10 paf 587: set_name(*NEW String(pool(), OP_CLASS_NAME));
1.28 parser 588:
1.1 paf 589: // ^if(condition){code-when-true}
590: // ^if(condition){code-when-true}{code-when-false}
1.10 paf 591: add_native_method("if", Method::CT_ANY, _if, 2, 3);
1.1 paf 592:
593: // ^untaint[as-is|uri|sql|js|html|html-typo]{code}
1.59 paf 594: add_native_method("untaint", Method::CT_ANY, _untaint, 1, 2);
1.1 paf 595:
596: // ^taint[as-is|uri|sql|js|html|html-typo]{code}
1.10 paf 597: add_native_method("taint", Method::CT_ANY, _taint, 1, 2);
1.1 paf 598:
599: // ^process[code]
1.10 paf 600: add_native_method("process", Method::CT_ANY, _process, 1, 1);
1.1 paf 601:
602: // ^rem{code}
1.51 parser 603: add_native_method("rem", Method::CT_ANY, _rem, 1, 10000);
1.1 paf 604:
605: // ^while(condition){code}
1.10 paf 606: add_native_method("while", Method::CT_ANY, _while, 2, 2);
1.1 paf 607:
608: // ^use[file]
1.10 paf 609: add_native_method("use", Method::CT_ANY, _use, 1, 1);
1.1 paf 610:
1.54 paf 611: // ^for[i](from-number;to-number-inclusive){code}[delim]
1.10 paf 612: add_native_method("for", Method::CT_ANY, _for, 3+1, 3+1+1);
1.1 paf 613:
614: // ^eval(expr)
615: // ^eval(expr)[format]
1.10 paf 616: add_native_method("eval", Method::CT_ANY, _eval, 1, 2);
1.52 parser 617:
1.1 paf 618: // ^connect[protocol://user:pass@host[:port]/database]{code with ^sql-s}
1.10 paf 619: add_native_method("connect", Method::CT_ANY, _connect, 2, 2);
620:
1.63 paf 621:
1.65 paf 622: // ^cache[file_spec] delete cache
1.63 paf 623: // ^cache[file_spec](time){code} time=0 no cache
1.65 paf 624: add_native_method("cache", Method::CT_ANY, _cache, 1, 3);
1.63 paf 625:
1.28 parser 626: // switch
627:
628: // ^switch[value]{cases}
629: add_native_method("switch", Method::CT_ANY, _switch, 2, 2);
630:
631: // ^case[value]{code}
1.51 parser 632: add_native_method("case", Method::CT_ANY, _case, 2, 10000);
1.74 ! paf 633:
! 634: // try-catch
! 635:
! 636: // ^try{code}{catch code}
! 637: add_native_method("try", Method::CT_ANY, _try_operator, 2, 2);
! 638: // ^throw[$exception hash]
! 639: // ^throw[type;source;comment]
! 640: add_native_method("throw", Method::CT_ANY, _throw_operator, 1, 3);
! 641:
1.10 paf 642: }
1.11 paf 643:
644: // constructor & configurator
1.1 paf 645:
1.10 paf 646: Methoded *MOP_create(Pool& pool) {
1.35 parser 647: return new(pool) MOP(pool);
1.11 paf 648: }
649:
650: void MOP::configure_user(Request& r) {
651: Pool& pool=r.pool();
652:
653: // $MAIN:SQL.drivers
654: if(Value *sql=r.main_class->get_element(main_sql_name))
655: if(Value *element=sql->get_element(main_sql_drivers_name))
656: if(Table *protocol2library=element->get_table())
657: r.classes_conf.put(name(), protocol2library);
1.1 paf 658: }
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