perl/FCGI.XL

   1 use Config;
   2
   3 open OUT, ">FCGI.xs";
   4
   5 print "Generating FCGI.xs for Perl version $]\n";
   6 #unless (exists $Config{apiversion} && $Config{apiversion} >= 5.005)
   7 unless ($] >= 5.005) {
   8     for (qw(sv_undef diehook warnhook in_eval)) {
   9         print OUT "#define PL_$_ $_\n"
  10     }
  11 }
  12 print OUT while <DATA>;
  13 close OUT;
  14 __END__
  15 /* $Id: FCGI.XL,v 1.10 2003/06/22 00:24:11 robs Exp $ */
  16
  17 #include "EXTERN.h"
  18 #include "perl.h"
  19 #include "XSUB.h"
  20
  21 #include "fcgi_config.h"
  22 #include "fcgiapp.h"
  23 #include "fastcgi.h"
  24
  25 #ifndef FALSE
  26 #define FALSE (0)
  27 #endif
  28
  29 #ifndef TRUE
  30 #define TRUE  (1)
  31 #endif
  32
  33 #ifndef dTHX
  34 #define dTHX
  35 #endif
  36
  37 #ifndef INT2PTR
  38 #define INT2PTR(a,b) ((a) (b))
  39 #endif
  40
  41 #ifdef USE_SFIO
  42 typedef struct
  43 {
  44     Sfdisc_t    disc;
  45     FCGX_Stream *stream;
  46 } FCGI_Disc;
  47
  48 static ssize_t
  49 sffcgiread(f, buf, n, disc)
  50 Sfio_t*         f;      /* stream involved */
  51 Void_t*         buf;    /* buffer to read into */
  52 size_t          n;      /* number of bytes to read */
  53 Sfdisc_t*       disc;   /* discipline */
  54 {
  55     return FCGX_GetStr(buf, n, ((FCGI_Disc *)disc)->stream);
  56 }
  57
  58 static ssize_t
  59 sffcgiwrite(f, buf, n, disc)
  60 Sfio_t*         f;      /* stream involved */
  61 const Void_t*   buf;    /* buffer to read into */
  62 size_t          n;      /* number of bytes to read */
  63 Sfdisc_t*       disc;   /* discipline */
  64 {
  65     n = FCGX_PutStr(buf, n, ((FCGI_Disc *)disc)->stream);
  66     FCGX_FFlush(((FCGI_Disc *)disc)->stream);
  67     return n;
  68 }
  69
  70 Sfdisc_t *
  71 sfdcnewfcgi(stream)
  72         FCGX_Stream *stream;
  73 {
  74     FCGI_Disc*  disc;
  75
  76     New(1000,disc,1,FCGI_Disc);
  77     if (!disc) return (Sfdisc_t *)disc;
  78
  79     disc->disc.exceptf = (Sfexcept_f)NULL;
  80     disc->disc.seekf = (Sfseek_f)NULL;
  81     disc->disc.readf = sffcgiread;
  82     disc->disc.writef = sffcgiwrite;
  83     disc->stream = stream;
  84     return (Sfdisc_t *)disc;
  85 }
  86
  87 Sfdisc_t *
  88 sfdcdelfcgi(disc)
  89     Sfdisc_t*   disc;
  90 {
  91     Safefree(disc);
  92     return 0;
  93 }
  94 #endif
  95
  96 #if defined(USE_LOCKING) && defined(USE_THREADS)
  97 static perl_mutex   accept_mutex;
  98 #endif
  99
 100 typedef struct FCGP_Request {
 101     int             accepted;
 102     int             bound;
 103     SV*             svin;
 104     SV*             svout;
 105     SV*             sverr;
 106     GV*             gv[3];
 107     HV*             hvEnv;
 108     FCGX_Request*   requestPtr;
 109 #ifdef USE_SFIO
 110     int             sfcreated[3];
 111     IO*             io[3];
 112 #endif
 113 } FCGP_Request;
 114
 115 static void FCGI_Finish(FCGP_Request* request);
 116
 117 static void
 118 FCGI_Flush(FCGP_Request* request)
 119 {
 120     dTHX;
 121
 122     if(!request->bound) {
 123         return;
 124         }
 125 #ifdef USE_SFIO
 126     sfsync(IoOFP(GvIOp(request->gv[1])));
 127     sfsync(IoOFP(GvIOp(request->gv[2])));
 128 #else
 129     FCGX_FFlush(INT2PTR(FCGX_Stream *, SvIV((SV*) SvRV(request->svout))));
 130     FCGX_FFlush(INT2PTR(FCGX_Stream *, SvIV((SV*) SvRV(request->sverr))));
 131 #endif
 132 }
 133
 134 static void
 135 FCGI_UndoBinding(FCGP_Request* request)
 136 {
 137     dTHX;
 138
 139 #ifdef USE_SFIO
 140     sfdcdelfcgi(sfdisc(IoIFP(request->io[0]), SF_POPDISC));
 141     sfdcdelfcgi(sfdisc(IoOFP(request->io[1]), SF_POPDISC));
 142     sfdcdelfcgi(sfdisc(IoOFP(request->io[2]), SF_POPDISC));
 143 #else
 144 #  ifdef USE_PERLIO
 145     sv_unmagic((SV *)GvIOp(request->gv[0]), 'q');
 146     sv_unmagic((SV *)GvIOp(request->gv[1]), 'q');
 147     sv_unmagic((SV *)GvIOp(request->gv[2]), 'q');
 148 #  else
 149     sv_unmagic((SV *)request->gv[0], 'q');
 150     sv_unmagic((SV *)request->gv[1], 'q');
 151     sv_unmagic((SV *)request->gv[2], 'q');
 152 #  endif
 153 #endif
 154     request->bound = FALSE;
 155 }
 156
 157 static void
 158 FCGI_Bind(FCGP_Request* request)
 159 {
 160     dTHX;
 161
 162 #ifdef USE_SFIO
 163     sfdisc(IoIFP(request->io[0]), sfdcnewfcgi(request->requestPtr->in));
 164     sfdisc(IoOFP(request->io[1]), sfdcnewfcgi(request->requestPtr->out));
 165     sfdisc(IoOFP(request->io[2]), sfdcnewfcgi(request->requestPtr->err));
 166 #else
 167 #  ifdef USE_PERLIO
 168     /* For tied filehandles, we apply tiedscalar magic to the IO
 169        slot of the GP rather than the GV itself. */
 170
 171     if (!GvIOp(request->gv[1]))
 172         GvIOp(request->gv[1]) = newIO();
 173     if (!GvIOp(request->gv[2]))
 174         GvIOp(request->gv[2]) = newIO();
 175     if (!GvIOp(request->gv[0]))
 176         GvIOp(request->gv[0]) = newIO();
 177
 178     sv_magic((SV *)GvIOp(request->gv[1]), request->svout, 'q', Nullch, 0);
 179     sv_magic((SV *)GvIOp(request->gv[2]), request->sverr, 'q', Nullch, 0);
 180     sv_magic((SV *)GvIOp(request->gv[0]), request->svin, 'q', Nullch, 0);
 181 #  else
 182     sv_magic((SV *)request->gv[1], request->svout, 'q', Nullch, 0);
 183     sv_magic((SV *)request->gv[2], request->sverr, 'q', Nullch, 0);
 184     sv_magic((SV *)request->gv[0], request->svin, 'q', Nullch, 0);
 185 #  endif
 186 #endif
 187     request->bound = TRUE;
 188 }
 189
 190 static void
 191 populate_env(envp, hv)
 192 char **envp;
 193 HV *hv;
 194 {
 195     int i;
 196     char *p, *p1;
 197     SV   *sv;
 198     dTHX;
 199
 200     hv_clear(hv);
 201     for(i = 0; ; i++) {
 202         if((p = envp[i]) == NULL) {
 203             break;
 204         }
 205         p1 = strchr(p, '=');
 206         assert(p1 != NULL);
 207         sv = newSVpv(p1 + 1, 0);
 208         /* call magic for this value ourselves */
 209         hv_store(hv, p, p1 - p, sv, 0);
 210         SvSETMAGIC(sv);
 211     }
 212 }
 213
 214 static int
 215 FCGI_IsFastCGI(FCGP_Request* request)
 216 {
 217     static int isCGI = -1; /* -1: not checked; 0: FCGI; 1: CGI */
 218
 219     if (request->requestPtr->listen_sock == FCGI_LISTENSOCK_FILENO) {
 220         if (isCGI == -1)
 221             isCGI = FCGX_IsCGI();
 222         return !isCGI;
 223     }
 224
 225     /* A explicit socket is being used -> assume FastCGI */
 226     return 1;
 227 }
 228
 229 static int
 230 FCGI_Accept(FCGP_Request* request)
 231 {
 232     dTHX;
 233
 234     if (!FCGI_IsFastCGI(request)) {
 235         static int been_here = 0;
 236
 237         /*
 238          * Not first call to FCGI_Accept and running as CGI means
 239          * application is done.
 240          */
 241         if (been_here)
 242             return EOF;
 243
 244         been_here = 1;
 245     } else {
 246 #ifdef USE_SFIO
 247         int i;
 248 #endif
 249         FCGX_Request *fcgx_req = request->requestPtr;
 250         int acceptResult;
 251
 252         FCGI_Finish(request);
 253 #if defined(USE_LOCKING) && defined(USE_THREADS)
 254         MUTEX_LOCK(&accept_mutex);
 255 #endif
 256         acceptResult = FCGX_Accept_r(fcgx_req);
 257 #if defined(USE_LOCKING) && defined(USE_THREADS)
 258         MUTEX_UNLOCK(&accept_mutex);
 259 #endif
 260         if(acceptResult < 0) {
 261             return acceptResult;
 262         }
 263
 264         populate_env(fcgx_req->envp, request->hvEnv);
 265
 266 #ifdef USE_SFIO
 267         for (i = 0; i < 3; ++i) {
 268             request->io[i] = GvIOn(request->gv[i]);
 269             if (!(i == 0 ? IoIFP(request->io[i])
 270                          : IoOFP(request->io[i]))) {
 271                 IoIFP(request->io[i]) = sftmp(0);
 272                 /*IoIFP(request->io[i]) = sfnew(NULL, NULL, SF_UNBOUND, 0,
 273                                      SF_STRING | (i ? SF_WRITE : SF_READ));*/
 274                 if (i != 0)
 275                     IoOFP(request->io[i]) = IoIFP(request->io[i]);
 276                 request->sfcreated[i] = TRUE;
 277             }
 278         }
 279 #else
 280         if (!request->svout) {
 281             newSVrv(request->svout = newSV(0), "FCGI::Stream");
 282             newSVrv(request->sverr = newSV(0), "FCGI::Stream");
 283             newSVrv(request->svin = newSV(0), "FCGI::Stream");
 284         }
 285         sv_setiv(SvRV(request->svout), INT2PTR(IV, fcgx_req->out));
 286         sv_setiv(SvRV(request->sverr), INT2PTR(IV, fcgx_req->err));
 287         sv_setiv(SvRV(request->svin), INT2PTR(IV, fcgx_req->in));
 288 #endif
 289         FCGI_Bind(request);
 290         request->accepted = TRUE;
 291     }
 292     return 0;
 293 }
 294
 295 static void
 296 FCGI_Finish(FCGP_Request* request)
 297 {
 298 #ifdef USE_SFIO
 299     int i;
 300 #endif
 301     int was_bound;
 302     dTHX;
 303
 304     if(!request->accepted) {
 305         return;
 306     }
 307
 308     if (was_bound = request->bound) {
 309         FCGI_UndoBinding(request);
 310     }
 311 #ifdef USE_SFIO
 312     for (i = 0; i < 3; ++i) {
 313         if (request->sfcreated[i]) {
 314             sfclose(IoIFP(request->io[i]));
 315             IoIFP(request->io[i]) = IoOFP(request->io[i]) = Nullfp;
 316             request->sfcreated[i] = FALSE;
 317         }
 318     }
 319 #endif
 320     if (was_bound)
 321         FCGX_Finish_r(request->requestPtr);
 322     else
 323         FCGX_Free(request->requestPtr, 1);
 324     request->accepted = FALSE;
 325 }
 326
 327 static int
 328 FCGI_StartFilterData(FCGP_Request* request)
 329 {
 330     return request->requestPtr->in ?
 331             FCGX_StartFilterData(request->requestPtr->in) : -1;
 332 }
 333
 334 static FCGP_Request *
 335 FCGI_Request(in, out, err, env, socket, flags)
 336     GV*     in;
 337     GV*     out;
 338     GV*     err;
 339     HV*     env;
 340     int     socket;
 341     int     flags;
 342 {
 343     FCGX_Request* fcgx_req;
 344     FCGP_Request* req;
 345
 346     Newz(551, fcgx_req, 1, FCGX_Request);
 347     FCGX_InitRequest(fcgx_req, socket, flags);
 348     Newz(551, req, 1, FCGP_Request);
 349     req->requestPtr = fcgx_req;
 350     SvREFCNT_inc(in);
 351     req->gv[0] = in;
 352     SvREFCNT_inc(out);
 353     req->gv[1] = out;
 354     SvREFCNT_inc(err);
 355     req->gv[2] = err;
 356     SvREFCNT_inc(env);
 357     req->hvEnv = env;
 358
 359     return req;
 360 }
 361
 362 static void
 363 FCGI_Release_Request(FCGP_Request *req)
 364 {
 365     SvREFCNT_dec(req->gv[0]);
 366     SvREFCNT_dec(req->gv[1]);
 367     SvREFCNT_dec(req->gv[2]);
 368     SvREFCNT_dec(req->hvEnv);
 369     FCGI_Finish(req);
 370     Safefree(req->requestPtr);
 371     Safefree(req);
 372 }
 373
 374 static void
 375 FCGI_Init()
 376 {
 377 #if defined(USE_LOCKING) && defined(USE_THREADS)
 378     dTHX;
 379
 380     MUTEX_INIT(&accept_mutex);
 381 #endif
 382
 383     FCGX_Init();
 384 }
 385
 386 typedef FCGX_Stream *   FCGI__Stream;
 387 typedef FCGP_Request *  FCGI;
 388 typedef GV*             GLOBREF;
 389 typedef HV*             HASHREF;
 390
 391 MODULE = FCGI           PACKAGE = FCGI      PREFIX = FCGI_
 392
 393 BOOT:
 394     FCGI_Init();
 395
 396 SV *
 397 RequestX(in, out, err, env, socket, flags)
 398     GLOBREF in;
 399     GLOBREF out;
 400     GLOBREF err;
 401     HASHREF env;
 402     int     socket;
 403     int     flags;
 404
 405     PROTOTYPE: ***$$$
 406     CODE:
 407     RETVAL = sv_setref_pv(newSV(0), "FCGI",
 408                 FCGI_Request(in, out, err, env, socket, flags));
 409
 410     OUTPUT:
 411     RETVAL
 412
 413 int
 414 OpenSocket(path, backlog)
 415     char* path;
 416     int backlog;
 417
 418     PROTOTYPE: $$
 419     CODE:
 420     RETVAL = FCGX_OpenSocket(path, backlog);
 421     OUTPUT:
 422     RETVAL
 423
 424 void
 425 CloseSocket(socket)
 426     int socket;
 427
 428     PROTOTYPE: $
 429     CODE:
 430     close(socket);
 431
 432 int
 433 FCGI_Accept(request)
 434
 435     FCGI    request;
 436
 437     PROTOTYPE: $
 438
 439 void
 440 FCGI_Finish(request)
 441     FCGI    request;
 442
 443     PROTOTYPE: $
 444
 445 void
 446 FCGI_Flush(request)
 447     FCGI    request;
 448
 449     PROTOTYPE: $
 450
 451 HV *
 452 GetEnvironment(request)
 453     FCGI    request;
 454
 455     PROTOTYPE: $
 456
 457     CODE:
 458     RETVAL = request->hvEnv;
 459
 460     OUTPUT:
 461     RETVAL
 462
 463 void
 464 GetHandles(request)
 465     FCGI    request;
 466
 467     PROTOTYPE: $
 468
 469     PREINIT:
 470     int     i;
 471
 472     PPCODE:
 473     EXTEND(sp,3);
 474     for (i = 0; i < 3; ++i)
 475         PUSHs(sv_2mortal(newRV((SV *) request->gv[i])));
 476
 477 int
 478 FCGI_IsFastCGI(request)
 479     FCGI    request;
 480
 481     PROTOTYPE: $
 482
 483 void
 484 Detach(request)
 485     FCGI    request;
 486
 487     PROTOTYPE: $
 488
 489     CODE:
 490     if (request->accepted && request->bound) {
 491         FCGI_UndoBinding(request);
 492         FCGX_Detach(request->requestPtr);
 493     }
 494
 495 void
 496 Attach(request)
 497     FCGI    request;
 498
 499     PROTOTYPE: $
 500
 501     CODE:
 502     if (request->accepted && !request->bound) {
 503         FCGI_Bind(request);
 504         FCGX_Attach(request->requestPtr);
 505     }
 506
 507 void
 508 LastCall(request)
 509     FCGI    request;
 510
 511     PROTOTYPE: $
 512
 513     CODE:
 514     FCGX_ShutdownPending();
 515
 516 int
 517 FCGI_StartFilterData(request)
 518
 519     FCGI    request;
 520
 521     PROTOTYPE: $
 522
 523 void
 524 DESTROY(request)
 525     FCGI    request;
 526
 527     CODE:
 528     FCGI_Release_Request(request);
 529
 530
 531
 532 MODULE = FCGI           PACKAGE = FCGI::Stream
 533
 534 #ifndef USE_SFIO
 535
 536 int
 537 PRINT(stream, ...)
 538         FCGI::Stream    stream;
 539
 540         PREINIT:
 541         int     n;
 542
 543         CODE:
 544     for (n = 1; n < items; ++n) {
 545             STRLEN len;
 546             register char *tmps;
 547 #ifdef DO_UTF8
 548             if (DO_UTF8(ST(n)) && !sv_utf8_downgrade(ST(n), 1))
 549                 croak("Wide character in FCGI::Stream::PRINT");
 550 #endif
 551             tmps = (char *)SvPV(ST(n),len);
 552                 FCGX_PutStr(tmps, len, stream);
 553     }
 554         if (SvTRUEx(perl_get_sv("|", FALSE)))
 555             FCGX_FFlush(stream);
 556     RETVAL = 1;
 557
 558     OUTPUT:
 559     RETVAL
 560
 561 int
 562 WRITE(stream, bufsv, len, ...)
 563         FCGI::Stream    stream;
 564         SV *    bufsv;
 565         int     len;
 566
 567         PREINIT:
 568         int     offset;
 569         char *  buf;
 570         STRLEN  blen;
 571         int     n;
 572
 573         CODE:
 574         offset = (items == 4) ? (int)SvIV(ST(3)) : 0;
 575 #ifdef DO_UTF8
 576     if (DO_UTF8(bufsv) && !sv_utf8_downgrade(bufsv, 1))
 577          croak("Wide character in FCGI::Stream::WRITE");
 578 #endif
 579         buf = SvPV(bufsv, blen);
 580         if (offset < 0) offset += blen;
 581         if (len > blen - offset)
 582             len = blen - offset;
 583         if (offset < 0 || offset >= blen ||
 584                 (n = FCGX_PutStr(buf+offset, len, stream)) < 0)
 585             ST(0) = &PL_sv_undef;
 586         else {
 587             ST(0) = sv_newmortal();
 588             sv_setiv(ST(0), n);
 589         }
 590
 591 int
 592 READ(stream, bufsv, len, ...)
 593         FCGI::Stream    stream;
 594         SV *    bufsv;
 595         int     len;
 596
 597         PREINIT:
 598         int     offset;
 599         char *  buf;
 600
 601         CODE:
 602         offset = (items == 4) ? (int)SvIV(ST(3)) : 0;
 603 #ifdef DO_UTF8
 604     if (DO_UTF8(bufsv) && !sv_utf8_downgrade(bufsv, 1))
 605          croak("Wide character in FCGI::Stream::READ");
 606 #endif
 607         if (! SvOK(bufsv))
 608             sv_setpvn(bufsv, "", 0);
 609         buf = SvGROW(bufsv, len+offset+1);
 610         len = FCGX_GetStr(buf+offset, len, stream);
 611         SvCUR_set(bufsv, len+offset);
 612         *SvEND(bufsv) = '\0';
 613         (void)SvPOK_only(bufsv);
 614         SvSETMAGIC(bufsv);
 615         RETVAL = len;
 616
 617         OUTPUT:
 618         RETVAL
 619
 620 SV *
 621 GETC(stream)
 622         FCGI::Stream    stream;
 623
 624         PREINIT:
 625         int     retval;
 626
 627         CODE:
 628         if ((retval = FCGX_GetChar(stream)) != -1) {
 629             ST(0) = sv_newmortal();
 630             sv_setpvf(ST(0), "%c", retval);
 631         } else ST(0) = &PL_sv_undef;
 632
 633 bool
 634 CLOSE(stream)
 635         FCGI::Stream    stream;
 636
 637 #       ALIAS:
 638 #       DESTROY = 1
 639
 640         CODE:
 641         RETVAL = FCGX_FClose(stream) != -1;
 642
 643         OUTPUT:
 644         RETVAL
 645
 646 #endif