handler_virt.c

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
   2
   3 /* Cherokee
   4  *
   5  * Authors:
   6  *      Alvaro Lopez Ortega <alvaro@alobbs.com>
   7  *      Stefan de Konink <stefan@konink.de>
   8  *
   9  * Copyright (C) 2001-2008 Alvaro Lopez Ortega
  10  *
  11  * This program is free software; you can redistribute it and/or
  12  * modify it under the terms of version 2 of the GNU General Public
  13  * License as published by the Free Software Foundation.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  23  * USA
  24  */
  25
  26 // #define LINUX_CMDLINE "root=/dev/xvda ro ip=%s:1.2.3.4:%s:%s::eth0:off"
  27
  28 #define VIRT_INTERFACE_XML \
  29 "    <interface type='bridge'>" \
  30 "      <source bridge='xenbr0'/>" \
  31 "      <mac address='%s'/>" \
  32 "      <ip address='%s' />" \
  33 "      <script path='vif-bridge'/>" \
  34 "    </interface>"
  35
  36 //"      <target dev='vif1.0'/>" \
  37
  38 #define VIRT_DISK_XML \
  39 "    <disk type='file' device='disk'>" \
  40 "      <driver name='tap' type='qcow' />" \
  41 "      <source file='%s'/>" \
  42 "      <target dev='%s' bus='xen'/>" \
  43 "    </disk>"
  44
  45
  46
  47 #define VIRT_DOMAIN_XML \
  48 "<domain type='xen'>" \
  49 "  <name>%s_%s</name>" \
  50 "  <os>" \
  51 "   <type>linux</type>" \
  52 "   <kernel>/usr/lib/xen/boot/linux-2.6.20-xen-r6</kernel>" \
  53 "   <cmdline> root=/dev/xvda ro</cmdline>" \
  54 "  </os>" \
  55 "  <memory>%d</memory>" \
  56 "  <vcpu>%d</vcpu>" \
  57 "  <on_poweroff>destroy</on_poweroff>" \
  58 "  <on_reboot>restart</on_reboot>" \
  59 "  <on_crash>destroy</on_crash>" \
  60 "  <devices>" \
  61 "   %s" \
  62 "  </devices>" \
  63 "</domain>"
  64
  65 #define VIRT_STORAGE_XML \
  66 "<volume type='%s'>" \
  67 "  <name>%s</name>" \
  68 "  <allocation>%lu</allocation>" \
  69 "  <capacity unit='%s'>%lu</capacity>" \
  70 "  <target>" \
  71 "    <path>%s/%s/images/%s</path>" \
  72 "    <permissions>" \
  73 "      <owner>0744</owner>" \
  74 "      <group>0744</group>" \
  75 "      <mode>0744</mode>" \
  76 "      <label>%s_%s</label>" \
  77 "    </permissions>" \
  78 "  </target>" \
  79 "</volume>"
  80
  81
  82 #include "handler_virt.h"
  83 #include "handler_avahi.h"
  84 #include <cherokee/cherokee.h>
  85
  86 /* Plug-in initialization
  87  *
  88  * In this function you can use any of these:
  89  * http_delete | http_get | http_post | http_put
  90  *
  91  * For a full list: cherokee_http_method_t
  92  *
  93  * It is what your handler to be implements.
  94  *
  95  */
  96 PLUGIN_INFO_HANDLER_EASIEST_INIT (virt, http_get | http_post);
  97
  98
  99 /* Methods implementation
 100  */
 101 static ret_t
 102 props_free (cherokee_handler_virt_props_t *props)
 103 {
 104
 105     cherokee_buffer_mrproper(&props->xsl);
 106     cherokee_buffer_mrproper(&props->virt);
 107         return cherokee_module_props_free_base (MODULE_PROPS(props));
 108 }
 109
 110
 111 ret_t
 112 cherokee_handler_virt_configure (cherokee_config_node_t *conf, cherokee_server_t *srv, cherokee_module_props_t **_props)
 113 {
 114         cherokee_list_t *i;
 115         cherokee_handler_virt_props_t *props;
 116
 117     /* Instance a new property object
 118      */
 119
 120         if (*_props == NULL) {
 121                 CHEROKEE_NEW_STRUCT (n, handler_virt_props);
 122
 123         cherokee_handler_avahi_props_init_base (PROP_AVAHI(n), MODULE_PROPS_FREE(props_free));
 124
 125         /* Look at handler_virt.h
 126          * This is an virt of configuration.
 127          */
 128         n->authenticate = true; /* by default we are secure! */
 129         n->read_only = true; /* by default we are secure! */
 130         cherokee_buffer_init (&n->xsl); /* we support a custom header */
 131         cherokee_buffer_init (&n->virt); /* your first xenserver */
 132
 133                 *_props = MODULE_PROPS(n);
 134         }
 135
 136         props = PROP_VIRT(*_props);
 137
 138         cherokee_config_node_foreach (i, conf) {
 139                 cherokee_config_node_t *subconf = CONFIG_NODE(i);
 140
 141                 if (equal_buf_str (&subconf->key, "authenticate")) {
 142                         props->authenticate = atoi(subconf->val.buf);
 143                 }
 144         else if (equal_buf_str (&subconf->key, "read_only")) {
 145                         props->read_only = atoi(subconf->val.buf);
 146                 }
 147         else if (equal_buf_str (&subconf->key, "xsl")) {
 148             cherokee_buffer_add_buffer (&props->xsl, &subconf->val);
 149         }
 150         else if (equal_buf_str (&subconf->key, "virt")) {
 151             cherokee_buffer_add_buffer (&props->virt, &subconf->val);
 152         }
 153
 154         }
 155
 156     /* Init base class
 157      */
 158
 159         return cherokee_handler_avahi_configure (conf, srv, _props);
 160 }
 161
 162
 163 ret_t
 164 cherokee_handler_virt_init (cherokee_handler_virt_t *hdl)
 165 {
 166     int isroot = false;
 167     int len;
 168     char *this, *next;
 169
 170     cherokee_connection_t *conn = HANDLER_CONN(hdl);
 171     cherokee_buffer_init(&hdl->user);
 172     cherokee_buffer_init(&hdl->vm);
 173
 174     hdl->action = nothing;
 175
 176     cherokee_buffer_add (&conn->pathinfo,
 177                         conn->request.buf + conn->web_directory.len,
 178                         conn->request.len - conn->web_directory.len);
 179
 180     this = conn->pathinfo.buf + 1;
 181     next = strchr(this, '/');
 182
 183
 184     if ((!next && (this && (len = strlen(this)) == 0)) || (next && ((len = next - this) == 0)) )
 185         hdl->action = showall;
 186     else {
 187         cherokee_buffer_add (&hdl->user, this, len);
 188     }
 189
 190     if (HDL_VIRT_PROPS(hdl)->authenticate) {
 191         if (!conn->validator ||
 192             (conn->validator &&
 193              (!cherokee_buffer_cmp_buf(&conn->validator->user, &hdl->user) &&
 194               !(isroot = cherokee_buffer_cmp (&conn->validator->user, "root", 4))))) {
 195                hdl->action = nothing; /* just in case */
 196                conn->error_code = http_unauthorized;
 197                return ret_error;
 198         }
 199     } else {
 200         isroot = true;
 201     }
 202
 203     if (hdl->action == showall) {
 204         if (!isroot) {
 205             hdl->action = nothing;
 206             conn->error_code = http_unauthorized;
 207             return ret_error;
 208         } else {
 209             return virt_build_page(hdl);
 210         }
 211     }
 212
 213
 214     if (!next) {
 215         hdl->action = showuservms;
 216         return virt_build_page(hdl);
 217     } else {
 218         this = next + 1;
 219         next = strchr(this, '/');
 220
 221         if (!next && (this && (len = strlen(this)) == 0) || (next && ((len = next - this) == 0)) ) {
 222             hdl->action = showuservms;
 223             return virt_build_page(hdl);
 224         }
 225     }
 226
 227     cherokee_buffer_add (&hdl->vm, this, len);
 228
 229     if (!next) {
 230         hdl->action = domainGetXMLDesc;
 231         return virt_build_page(hdl);
 232     } else {
 233         this = next + 1;
 234         next = strchr(this, '/');
 235
 236         if (!next && (this && (len = strlen(this)) == 0) || (next && ((len = next - this) == 0)) ) {
 237             hdl->action = domainGetXMLDesc;
 238             return virt_build_page(hdl);
 239         }
 240     }
 241
 242     hdl->action = not_implemented;
 243     switch (conn->header.method) {
 244         case http_get:
 245             if (strncmp(this, "virDomain", 9) == 0) {
 246                 if (strncmp(this+9, "Get", 3) == 0) {
 247                     if (strcmp(this+12, "ID") == 0) hdl->action = domainGetID;
 248                     else if (strcmp(this+12, "Name") == 0) hdl->action = domainGetName;
 249                     else if (strcmp(this+12, "MaxMemory") == 0) hdl->action = domainGetMaxMemory;
 250                     else if (strcmp(this+12, "MaxVcpus") == 0) hdl->action = domainGetMaxVcpus;
 251                     else if (strcmp(this+12, "OSType") == 0) hdl->action = domainGetOSType;
 252                     else if (strcmp(this+12, "UUID") == 0) hdl->action = domainGetUUID;
 253                     else if (strcmp(this+12, "UUIDString") == 0) hdl->action = domainGetUUIDString;
 254                     else if (strcmp(this+12, "XMLDesc") == 0) hdl->action = domainGetXMLDesc;
 255                 }
 256                 else if (strcmp(this+9, "Create") == 0) hdl->action = domainCreate;
 257                 else if (strcmp(this+9, "Destroy") == 0) hdl->action = domainDestroy;
 258                 else if (strcmp(this+9, "Reboot") == 0) hdl->action = domainReboot;
 259                 else if (strcmp(this+9, "Shutdown") == 0) hdl->action = domainShutdown;
 260
 261                 else if (strcmp(this+9, "AttachDevice") == 0) hdl->action = domainAttachDevice_args;
 262
 263                 else if (strcmp(this+9, "DefineXML") == 0) hdl->action = domainDefineXML_args;
 264                 else if (strcmp(this+9, "Undefine") == 0) hdl->action = domainUndefine;
 265             }
 266             else if (strncmp(this, "virStorage", 10) == 0) {
 267                 if (strncmp(this+10, "Vol", 3) == 0) {
 268                     if (strcmp(this+13, "CreateXML") == 0) hdl->action = storageVolCreateXML_args;
 269                 }
 270             }
 271             break;
 272
 273         case http_post: {
 274             off_t postl;
 275             cherokee_post_get_len (&conn->post, &postl);
 276
 277             if (postl <= 0 || postl >= (INT_MAX-1)) {
 278                 conn->error_code = http_bad_request;
 279                 return ret_error;
 280             }
 281
 282             if (strncmp(this, "virDomain", 9) == 0) {
 283                 if (strcmp(this+9, "AttachDevice") == 0) hdl->action = domainAttachDevice;
 284                 else if (strcmp(this+9, "DetachDevice") == 0) hdl->action = domainDetachDevice;
 285                 else if (strcmp(this+9, "DefineXML") == 0) hdl->action = domainDefineXML;
 286             }
 287             else if (strncmp(this, "virStorage", 10) == 0) {
 288                 if (strncmp(this+10, "Vol", 3) == 0) {
 289                     if (strcmp(this+13, "CreateXML") == 0) hdl->action = storageVolCreateXML;
 290                 }
 291             }
 292
 293             break;
 294         }
 295
 296         default:
 297             return ret_error;
 298     }
 299
 300     if (hdl->action <= 0) {
 301         conn->error_code = http_bad_request;
 302         return ret_error;
 303     }
 304
 305
 306     return virt_build_page(hdl);
 307 }
 308
 309 ret_t
 310 cherokee_handler_virt_free (cherokee_handler_virt_t *hdl)
 311 {
 312     cherokee_buffer_mrproper (&hdl->buffer);
 313     cherokee_buffer_mrproper (&hdl->user);
 314     cherokee_buffer_mrproper (&hdl->vm);
 315
 316     return ret_ok;
 317 }
 318
 319 ret_t
 320 cherokee_handler_virt_step (cherokee_handler_virt_t *hdl, cherokee_buffer_t *buffer)
 321 {
 322     cherokee_buffer_add_buffer (buffer, &hdl->buffer);
 323     return ret_eof_have_data;
 324 }
 325
 326 ret_t
 327 cherokee_handler_virt_add_headers (cherokee_handler_virt_t *hdl, cherokee_buffer_t *buffer)
 328 {
 329     cherokee_buffer_add_va (buffer, "Content-Length: %d"CRLF, hdl->buffer.len);
 330
 331     if (hdl->action > xml)
 332         cherokee_buffer_add_str (buffer, "Content-Type: application/xml"CRLF);
 333     else
 334         cherokee_buffer_add_str (buffer, "Content-Type: text/plain"CRLF);
 335
 336     return ret_ok;
 337 }
 338
 339 /*
 340 static ret_t
 341 while_func_entries (cherokee_buffer_t *key, void *value, void *param) {
 342     virConnectPtr conn = NULL;
 343     cherokee_buffer_t uri = CHEROKEE_BUF_INIT;
 344     cherokee_buffer_t *buf = (cherokee_buffer_t *)param;
 345
 346     cherokee_buffer_add_va (&uri, "xen://%s/", value);
 347
 348     if (HDL_VIRT_PROPS(hdl)->read_only == FALSE && !(conn = virConnectOpen (uri.buf))) {
 349         if (!(conn = virConnectOpen (uri.buf))) {
 350             return ret_error;
 351         }
 352     }
 353
 354     if (!conn && !(conn = virConnectOpenReadOnly (uri.buf))) {
 355         return ret_error;
 356     } else {
 357         virDomainPtr dom;
 358         if (!(dom = virDomainLookupByName(conn, (const char *) key->buf))) {
 359             return ret_error;
 360         } else {
 361             char *xml = virDomainGetXMLDesc(dom, 0);
 362             cherokee_buffer_add(buf, xml, strlen(xml));
 363         }
 364         virConnectClose(conn);
 365     }
 366
 367     cherokee_buffer_mrproper(&uri);
 368
 369     return ret_ok;
 370 }*/
 371
 372 static ret_t
 373 virt_virt_function(cherokee_handler_virt_t *hdl, virDomainPtr dom) {
 374     cherokee_connection_t *conn = HANDLER_CONN(hdl);
 375     cherokee_buffer_t *buf = &HDL_AVAHI(hdl)->buffer;
 376
 377     switch (hdl->action) {
 378
 379         case domainUndefine: {
 380             int result;
 381             if ((result = virDomainUndefine(dom)) != 0) {
 382                 conn->error_code = http_internal_error;
 383             }
 384
 385             cherokee_buffer_add_long10(buf, result);
 386             break;
 387         }
 388
 389         case domainAttachDevice_args: {
 390             int result;
 391             void *temp;
 392             ret_t ret;
 393             ret = cherokee_connection_parse_args (conn);
 394             if (unlikely(ret < ret_ok))
 395                 return ret;
 396
 397             ret = cherokee_avl_get_ptr (conn->arguments, "type", &temp);
 398
 399             if (ret == ret_ok) {
 400                 cherokee_buffer_t xml = CHEROKEE_BUF_INIT;
 401
 402                 if (strcmp(temp, "disk") == 0) {
 403                     void *file, *device;
 404
 405                     if ((ret = cherokee_avl_get_ptr (conn->arguments, "file", &file)) == ret_ok && (ret = cherokee_avl_get_ptr (conn->arguments, "device", &device)) == ret_ok) {
 406                         cherokee_buffer_add_va (&xml, VIRT_DISK_XML, file, device);
 407                     } else {
 408                         ret = ret_error;
 409                     }
 410                 }
 411
 412                 else if (strcmp(temp, "interface") == 0) {
 413                     void *mac, *ip;
 414                     if ((ret = cherokee_avl_get_ptr (conn->arguments, "mac", &mac)) == ret_ok && (ret = cherokee_avl_get_ptr (conn->arguments, "ip", &ip)) == ret_ok) {
 415                         cherokee_buffer_add_va (&xml, VIRT_INTERFACE_XML, mac, ip);
 416                     } else {
 417                         char *mac = NULL;
 418                         char *ip  = NULL;
 419                         cherokee_buffer_t domu = CHEROKEE_BUF_INIT;
 420                         cherokee_buffer_add_va (&domu, "%s_%s", hdl->user.buf, hdl->vm.buf);
 421                         getNewMac("dv28", domu.buf, &mac, &ip);
 422                         cherokee_buffer_mrproper(&domu);
 423                         cherokee_buffer_add_va (&xml, VIRT_INTERFACE_XML, mac, ip);
 424                     }
 425                 }
 426
 427
 428
 429                 if (ret == ret_ok && (result = virDomainAttachDevice(dom, (const char *) xml.buf)) == 0) {
 430                     ret = ret_ok;
 431                 } else {
 432                     conn->error_code = http_internal_error;
 433                     ret = ret_error;
 434                 }
 435
 436                 cherokee_buffer_add_long10(buf, result);
 437                 cherokee_buffer_mrproper(&xml);
 438             }
 439
 440             return ret;
 441         }
 442
 443         case domainAttachDevice: {
 444             off_t postl;
 445             int result;
 446             cherokee_buffer_t post = CHEROKEE_BUF_INIT;
 447             cherokee_post_get_len (&conn->post, &postl);
 448             cherokee_post_walk_read (&conn->post, &post, (cuint_t) postl);
 449             if ((result = virDomainAttachDevice(dom, (const char *) post.buf)) != 0)
 450                 conn->error_code = http_internal_error;
 451
 452             cherokee_buffer_mrproper(&post);
 453             cherokee_buffer_add_long10(buf, result);
 454             break;
 455         }
 456
 457
 458                         case domainGetXMLDesc: {
 459                             char *xml = virDomainGetXMLDesc(dom, 0);
 460                             cherokee_buffer_add(buf, xml, strlen(xml));
 461                             free(xml);
 462                             break;
 463                         }
 464
 465
 466                         case domainDetachDevice: {
 467                             off_t postl;
 468                             int result;
 469                             cherokee_buffer_t post = CHEROKEE_BUF_INIT;
 470                             cherokee_post_get_len (&conn->post, &postl);
 471                             cherokee_post_walk_read (&conn->post, &post, (cuint_t) postl);
 472                             if ((result = virDomainDetachDevice(dom, (const char *) post.buf)) != 0) {
 473                                 conn->error_code = http_internal_error;
 474                             }
 475                             cherokee_buffer_mrproper(&post);
 476                             cherokee_buffer_add_long10(buf, result);
 477                             break;
 478                         }
 479
 480                         case domainGetID: {
 481                             cherokee_buffer_add_ulong10(buf, virDomainGetID(dom));
 482                             break;
 483                         }
 484                         case domainGetMaxMemory: {
 485                             cherokee_buffer_add_ulong10(buf, virDomainGetMaxMemory  (dom));
 486                             break;
 487                         }
 488                         case domainGetMaxVcpus: {
 489                             cherokee_buffer_add_long10(buf, virDomainGetMaxVcpus  (dom));
 490                             break;
 491                         }
 492                         case domainGetName: {
 493                             const char *name = virDomainGetName (dom);
 494                             cherokee_buffer_add(buf, name, strlen(name));
 495                             break;
 496                         }
 497                         case domainGetUUID: {
 498                             unsigned char uuid[VIR_UUID_BUFLEN];
 499                             if (virDomainGetUUID(dom, uuid) == 0) {
 500                                 cherokee_buffer_add_str(buf, uuid);
 501                             } else {
 502                                 conn->error_code = http_internal_error;
 503                                 return ret_error;
 504                             }
 505                             break;
 506                         }
 507                         case domainGetUUIDString: {
 508                             unsigned char uuid[VIR_UUID_STRING_BUFLEN];
 509                             if (virDomainGetUUIDString(dom, uuid) == 0) {
 510                                 cherokee_buffer_add_str(buf, uuid);
 511                             } else {
 512                                 conn->error_code = http_internal_error;
 513                                 return ret_error;
 514                             }
 515                             break;
 516                         }
 517
 518                         case domainCreate: {
 519                             cherokee_buffer_add_long10(buf, virDomainCreate  (dom));
 520                             break;
 521                         }
 522
 523                         case domainDestroy: {
 524                             cherokee_buffer_add_long10(buf, virDomainDestroy  (dom));
 525                             break;
 526                         }
 527
 528                         case domainReboot: {
 529                             cherokee_buffer_add_long10(buf, virDomainReboot  (dom, 0));
 530                             break;
 531                         }
 532
 533                         case domainShutdown: {
 534                             cherokee_buffer_add_long10(buf, virDomainShutdown  (dom));
 535                             break;
 536                         }
 537
 538
 539                         case domainGetOSType: {
 540                             char *ostype = virDomainGetOSType(dom);
 541                             cherokee_buffer_add(buf, ostype, strlen(ostype));
 542                             free(ostype);
 543                             break;
 544                         }
 545
 546     }
 547
 548     return ret_ok;
 549 }
 550
 551 static ret_t
 552 virt_virt_new(cherokee_handler_virt_t *hdl, virConnectPtr virConn)
 553 {
 554   cherokee_buffer_t *buf = &HDL_AVAHI(hdl)->buffer;
 555   cherokee_connection_t *conn = HANDLER_CONN(hdl);
 556   cherokee_buffer_t xml = CHEROKEE_BUF_INIT;
 557   virDomainPtr result;
 558   virStoragePoolPtr pool;
 559   virStorageVolPtr volume;
 560
 561   switch (hdl->action) {
 562         case storageVolCloneXML_args: {
 563             void *temp, *name;
 564             const char *source;
 565             ret_t ret;
 566             ret = cherokee_connection_parse_args (conn);
 567             if (unlikely(ret < ret_ok))
 568                 return ret;
 569
 570             ret = cherokee_avl_get_ptr (conn->arguments, "pool", &temp);
 571             if (unlikely(ret < ret_ok))
 572                 return ret;
 573
 574             pool = virStoragePoolLookupByName(virConn, temp);
 575
 576             if (pool == NULL)
 577                 return ret_error;
 578
 579             ret = cherokee_avl_get_ptr (conn->arguments, "volume", &temp);
 580             if (unlikely(ret < ret_ok))
 581                 return ret;
 582
 583             volume = virStorageVolLookupByName(pool, temp);
 584
 585             if (volume == NULL)
 586                 return ret_error;
 587
 588             source =  virStorageVolGetKey(volume);
 589
 590             ret = cherokee_avl_get_ptr (conn->arguments, "name", &name);
 591             if (unlikely(ret < ret_ok))
 592                 return ret;
 593
 594             ret = cherokee_avl_get_ptr (conn->arguments, "type", &temp);
 595             if (unlikely(ret < ret_ok))
 596                 return ret;
 597
 598             enum { UNKNOWN, RAW, QCOW } storage;
 599             storage clone = UNKNOWN;
 600
 601             if (strcmp("raw", temp) == 0)
 602                 clone = RAW;
 603             else if (strcmp("qcow", temp) == 0)
 604                 clone = QCOW;
 605
 606             if (clone != UNKNOWN) {
 607                 pid_t pid;
 608                 if ((pid = fork()) < 0) {
 609                     ret = ret_error;
 610                 } else {
 611                     if (pid == 0) {
 612                         cherokee_buffer_t busy = CHEROKEE_BUF_INIT;
 613                         cherokee_buffer_t *dest;
 614                         cherokee_buffer_va (&busy, "/mnt/netapp/users/%s/%s.%s.busy", hdl->user.buf, name, temp);
 615                         cherokee_buffer_duy (&busy, &dest);
 616                         cherokee_buffer_drop_ending (dest, 5);
 617
 618                         switch (clone) {
 619                             case RAW:
 620                                 execlp("/usr/bin/cp", name, busy.buf);
 621                                 break;
 622
 623                             case QCOW:
 624                                 execlp("/usr/sbin/qcow-create", "0", busy.buf, name);
 625                                 break;
 626                         }
 627                         link(busy.buf, dest.buf);
 628                         unlink(busy.buf);
 629
 630                         cherokee_buffer_mrproper(&busy);
 631                         cherokee_buffer_mrproper(dest);
 632
 633                         exit(0);
 634                     }
 635                 }
 636             }
 637
 638             cherokee_buffer_add_str(buf, "BUSY");
 639
 640             break;
 641         }
 642
 643         case storageVolCreateXML_args: {
 644             void *temp, *type, *name, *unit;
 645             char *pool_path;
 646             unsigned long int capacity, allocation;
 647             ret_t ret;
 648             ret = cherokee_connection_parse_args (conn);
 649             if (unlikely(ret < ret_ok))
 650                 return ret;
 651
 652             ret = cherokee_avl_get_ptr (conn->arguments, "pool", &temp);
 653             if (unlikely(ret < ret_ok))
 654                 return ret;
 655
 656             pool = virStoragePoolLookupByName(virConn, temp);
 657
 658             if (pool == NULL)
 659                 return ret_error;
 660
 661             pool_path = "/mnt/netapp/users";
 662             /*
 663             pool_path = virStoragePoolGetPath(pool);
 664
 665             if (!pool_path) {
 666                 virStoragePoolFree(pool);
 667                 return  ret_error;
 668             }
 669             */
 670
 671
 672             ret = cherokee_avl_get_ptr (conn->arguments, "name", &name);
 673             if (unlikely(ret < ret_ok))
 674                 return ret;
 675
 676             ret = cherokee_avl_get_ptr (conn->arguments, "type", &type);
 677             if (unlikely(ret < ret_ok))
 678                 return ret;
 679
 680             ret = cherokee_avl_get_ptr (conn->arguments, "unit", &unit);
 681             if (unlikely(ret < ret_ok))
 682                 return ret;
 683
 684             ret = cherokee_avl_get_ptr (conn->arguments, "allocation", &temp);
 685             if (unlikely(ret < ret_ok))
 686                 return ret;
 687
 688             allocation = strtoul(temp, NULL, 10);
 689             /* TODO: errno check */
 690
 691             ret = cherokee_avl_get_ptr (conn->arguments, "capacity", &temp);
 692             if (unlikely(ret < ret_ok))
 693                 return ret;
 694
 695             capacity = strtoul(temp, NULL, 10);
 696             /* TODO: errno check */
 697
 698             cherokee_buffer_add_va (&xml, VIRT_STORAGE_XML, type, name, allocation, unit, capacity, pool_path, hdl->user.buf, name, hdl->user.buf, name);
 699 //            free(pool_path);
 700             break;
 701         }
 702
 703         case domainDefineXML_args: {
 704             ret_t ret;
 705             unsigned int i;
 706             unsigned long vcpu = 0, interface = 0, memory = 0;
 707
 708             cherokee_buffer_t xml_interfaces = CHEROKEE_BUF_INIT;
 709             void *temp = NULL;
 710
 711             ret = cherokee_connection_parse_args (conn);
 712             if (unlikely(ret < ret_ok))
 713                 return ret;
 714
 715             ret = cherokee_avl_get_ptr (conn->arguments, "vcpu", &temp);
 716             if (ret == ret_ok)
 717                 vcpu = strtoul(temp, (char **) NULL, 10);
 718
 719             if (ret != ret_ok || errno == ERANGE || vcpu == 0) {
 720                 conn->error_code = http_internal_error;
 721                 return ret_error;
 722             }
 723
 724
 725             ret = cherokee_avl_get_ptr (conn->arguments, "memory", &temp);
 726             if (ret == ret_ok)
 727                 memory = strtoul(temp, (char **) NULL, 10);
 728
 729             if (ret != ret_ok || errno == ERANGE || memory == 0) {
 730                 conn->error_code = http_internal_error;
 731                 return ret_error;
 732             }
 733
 734
 735             ret = cherokee_avl_get_ptr (conn->arguments, "interface", &temp);
 736             if (ret == ret_ok)
 737                 interface = strtoul(temp, (char **) NULL, 10);
 738
 739             if (ret != ret_ok || errno == ERANGE) {
 740                 conn->error_code = http_internal_error;
 741                 return ret_error;
 742             }
 743
 744             cherokee_buffer_t domu = CHEROKEE_BUF_INIT;
 745             cherokee_buffer_add_va (&domu, "%s_%s", hdl->user.buf, hdl->vm.buf);
 746
 747             for (i = 0; i < interface; i++) {
 748                 char *mac = NULL;
 749                 char *ip  = NULL;
 750                 getNewMac("dv28", domu.buf, &mac, &ip);
 751                 cherokee_buffer_add_va (&xml_interfaces, VIRT_INTERFACE_XML, mac, ip);
 752             }
 753
 754             cherokee_buffer_mrproper(&domu);
 755
 756             cherokee_buffer_add_va (&xml, VIRT_DOMAIN_XML,
 757                 hdl->user.buf, hdl->vm.buf, memory, vcpu, xml_interfaces.buf);
 758
 759             cherokee_buffer_mrproper(&xml_interfaces);
 760             break;
 761         }
 762
 763         case storageVolCreateXML:
 764         case domainDefineXML: {
 765             off_t postl;
 766             cherokee_post_get_len (&conn->post, &postl);
 767             cherokee_post_walk_read (&conn->post, &xml, (cuint_t) postl);
 768             break;
 769         }
 770     }
 771
 772     switch (hdl->action) {
 773         case domainDefineXML_args:
 774         case domainDefineXML: {
 775             result = virDomainDefineXML(virConn, (const char *) xml.buf);
 776             //  printf("%s\n", xml.buf);
 777             cherokee_buffer_mrproper(&xml);
 778
 779             if (result == NULL) {
 780                 /* TODO: vrij maken eventuele uitgegeven macs! */
 781                 conn->error_code = http_internal_error;
 782                 return ret_error;
 783             }
 784
 785             char *output = virDomainGetXMLDesc(result, 0);
 786             /* TODO: store the domain on DISK! */
 787             FILE *fd = fopen("/mnt/netapp/users/%s/%s.xml", "w");
 788             fwrite(output, strlen(output), sizeof(char), fd);
 789             fclose(fd);
 790             cherokee_buffer_add(buf, output, strlen(output));
 791             free(output);
 792             break;
 793         }
 794
 795         case storageVolCreateXML_args:
 796         case storageVolCreateXML: {
 797             printf("%s", &xml.buf);
 798
 799             virStorageVolPtr vol = virStorageVolCreateXML(pool, (const char *) &xml.buf, 0);
 800             virStoragePoolFree(pool);
 801             cherokee_buffer_mrproper(&xml);
 802
 803             if (vol == NULL)
 804                 return ret_error;
 805
 806             cherokee_buffer_add_long10(buf, 0);
 807             break;
 808         }
 809     }
 810
 811     return ret_ok;
 812 }
 813
 814
 815 static ret_t
 816 virt_virt_do(cherokee_handler_virt_t *hdl, cherokee_buffer_t *domu, cherokee_buffer_t *uri)
 817 {
 818     cherokee_connection_t *conn = HANDLER_CONN(hdl);
 819
 820     ret_t ret = ret_error;
 821     virConnectPtr virConn = NULL;
 822
 823
 824     if (HDL_VIRT_PROPS(hdl)->read_only == FALSE)
 825         virConn = virConnectOpen (uri->buf);
 826
 827     if (!virConn && !(virConn = virConnectOpenReadOnly (uri->buf))) {
 828         conn->error_code = http_service_unavailable;
 829         return ret_error;
 830     }
 831
 832     switch (hdl->action) {
 833         case domainDefineXML_args:
 834         case domainDefineXML: {
 835             ret = virt_virt_new(hdl, virConn);
 836             break;
 837         }
 838
 839         default: {
 840             virDomainPtr dom;
 841             if ((dom = virDomainLookupByName(virConn, domu->buf)) == NULL) {
 842                 conn->error_code = http_not_found;
 843             } else {
 844                 ret = virt_virt_function(hdl, dom);
 845                 virDomainFree(dom);
 846             }
 847         }
 848     }
 849
 850     virConnectClose(virConn);
 851     return ret;
 852 }
 853
 854 static ret_t
 855 virt_while (cherokee_buffer_t *key, void *value, void *param) {
 856     cherokee_handler_virt_t * hdl = param;
 857 //    cherokee_buffer_t uri = CHEROKEE_BUF_INIT;
 858 //    cherokee_buffer_add_va (&uri, "xen://%s/", ((cherokee_buffer_t *) value)->buf);
 859 //    virt_virt_do((cherokee_handler_virt_t *) param, key, &uri);
 860 //    cherokee_buffer_mrproper(&uri);
 861
 862     cherokee_buffer_add_va (&hdl->buffer, "<domain><name>%s</name></domain>", key->buf);
 863
 864     return ret_ok;
 865 }
 866
 867 static ret_t
 868 virt_while_user (cherokee_buffer_t *key, void *value, void *param) {
 869     cherokee_handler_virt_t *hdl = param;
 870     if (key->len > hdl->user.len && key->buf[hdl->user.len] == '_' && strncmp(key->buf, hdl->user.buf, hdl->user.len) == 0)
 871         return virt_while (key, value, param);
 872
 873     return ret_ok;
 874 }
 875
 876 static ret_t
 877 virt_build_page (cherokee_handler_virt_t *hdl)
 878 {
 879     ret_t              ret;
 880     cherokee_connection_t *conn = HANDLER_CONN(hdl);
 881     cherokee_buffer_t uri = CHEROKEE_BUF_INIT;
 882     cherokee_buffer_t domu = CHEROKEE_BUF_INIT;
 883
 884     if (hdl->action > xml && HDL_VIRT_PROPS(hdl)->xsl.len > 0)
 885         cherokee_buffer_add_va (&hdl->buffer, "<?xml version=\"1.0\"?>\n<?xml-stylesheet type=\"text/xsl\" href=\"%s\"?>\n", HDL_VIRT_PROPS(hdl)->xsl.buf);
 886
 887
 888     /* First, block the event loop */
 889     avahi_threaded_poll_lock(HDL_AVAHI_PROPS(hdl)->threaded_poll);
 890     switch (hdl->action) {
 891         case showall:
 892             cherokee_buffer_add_str (&hdl->buffer, "<domains>");
 893             cherokee_avl_while(&HDL_AVAHI_PROPS(hdl)->entries, virt_while, hdl, NULL, NULL);
 894             cherokee_buffer_add_str (&hdl->buffer, "</domains>");
 895             ret = ret_ok;
 896             break;
 897
 898         case showuservms: {
 899             void *param[3];
 900             cherokee_buffer_add_str (&hdl->buffer, "<domains>");
 901             cherokee_avl_while(&HDL_AVAHI_PROPS(hdl)->entries, virt_while_user, hdl, NULL, NULL);
 902             cherokee_buffer_add_str (&hdl->buffer, "</domains>");
 903             ret = ret_ok;
 904             break;
 905         }
 906
 907         default: {
 908             cherokee_buffer_t *hostname = NULL;
 909             cherokee_buffer_add_va (&domu, "%s_%s", hdl->user.buf, hdl->vm.buf);
 910             ret = cherokee_avl_get_ptr(&HDL_AVAHI_PROPS(hdl)->entries, domu.buf, (void **) &hostname);
 911
 912             if (ret == ret_not_found) {
 913                 virDomainPtr virDom;
 914                 virConnectPtr virConn;
 915                 cherokee_buffer_add_va (&uri, "xen://%s/", HDL_VIRT_PROPS(hdl)->virt); // TODO: change!
 916
 917                 if (HDL_VIRT_PROPS(hdl)->read_only == FALSE)
 918                     virConn = virConnectOpen (uri.buf);
 919
 920                 if (!virConn && !(virConn = virConnectOpenReadOnly (uri.buf))) {
 921                     conn->error_code = http_service_unavailable;
 922                     return ret_error;
 923                 }
 924
 925                 if ((virDom = virDomainLookupByName(virConn, domu.buf)) == NULL) {
 926                     if (hdl->action != domainDefineXML_args && hdl->action != domainDefineXML) {
 927                         hdl->action = nothing;
 928                         conn->error_code = http_not_found;
 929                         ret = ret_error;
 930                     } else {
 931                         ret = ret_ok;
 932                     }
 933                 } else {
 934                     virDomainFree(virDom);
 935                     ret = ret_ok;
 936                 }
 937                 virConnectClose (virConn);
 938             } else if (ret == ret_ok) {
 939                 cherokee_buffer_add_va (&uri, "xen://%s/", hostname->buf);
 940                 printf("%s\n", uri.buf);
 941             } else {
 942                 hdl->action = http_internal_error;
 943                 hdl->action = nothing;
 944                 ret = ret_error;
 945             }
 946         }
 947
 948     }
 949     /* Finally, unblock the event loop */
 950     avahi_threaded_poll_unlock(HDL_AVAHI_PROPS(hdl)->threaded_poll);
 951
 952     if (ret == ret_ok && hdl->action != showall && hdl->action != showuservms) {
 953         ret = virt_virt_do(hdl, &domu, &uri);
 954     }
 955
 956     cherokee_buffer_mrproper(&domu);
 957     cherokee_buffer_mrproper(&uri);
 958
 959
 960     return ret;
 961 }
 962
 963
 964 ret_t
 965 cherokee_handler_virt_new  (cherokee_handler_t **hdl, cherokee_connection_t *cnt, cherokee_module_props_t *props)
 966 {
 967         ret_t ret;
 968     CHEROKEE_NEW_STRUCT (n, handler_virt);
 969
 970     /* Init the base class
 971      */
 972
 973     cherokee_handler_init_base(HANDLER(n), cnt, HANDLER_PROPS(props), PLUGIN_INFO_HANDLER_PTR(virt));
 974
 975     MODULE(n)->init         = (handler_func_init_t) cherokee_handler_virt_init;
 976     MODULE(n)->free         = (module_func_free_t) cherokee_handler_virt_free;
 977     HANDLER(n)->step        = (handler_func_step_t) cherokee_handler_virt_step;
 978     HANDLER(n)->add_headers = (handler_func_add_headers_t) cherokee_handler_virt_add_headers;
 979
 980     HANDLER(n)->support = hsupport_length | hsupport_range;
 981
 982     ret = cherokee_buffer_init (&n->buffer);
 983     if (unlikely(ret != ret_ok))
 984         return ret;
 985
 986     ret = cherokee_buffer_ensure_size (&n->buffer, 4*1024);
 987     if (unlikely(ret != ret_ok))
 988         return ret;
 989
 990     *hdl = HANDLER(n);
 991
 992     return ret_ok;
 993 }
 994