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
 560   switch (hdl->action) {
 561         case storageVolCreateXML_args: {
 562             void *temp, *type, *name, *unit;
 563             char *pool_path;
 564             unsigned long int capacity, allocation;
 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             pool_path = "/mnt/netapp/users";
 580             /*
 581             pool_path = virStoragePoolGetPath(pool);
 582
 583             if (!pool_path) {
 584                 virStoragePoolFree(pool);
 585                 return  ret_error;
 586             }
 587             */
 588
 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", &type);
 595             if (unlikely(ret < ret_ok))
 596                 return ret;
 597
 598             ret = cherokee_avl_get_ptr (conn->arguments, "unit", &unit);
 599             if (unlikely(ret < ret_ok))
 600                 return ret;
 601
 602             ret = cherokee_avl_get_ptr (conn->arguments, "allocation", &temp);
 603             if (unlikely(ret < ret_ok))
 604                 return ret;
 605
 606             allocation = strtoul(temp, NULL, 10);
 607             /* TODO: errno check */
 608
 609             ret = cherokee_avl_get_ptr (conn->arguments, "capacity", &temp);
 610             if (unlikely(ret < ret_ok))
 611                 return ret;
 612
 613             capacity = strtoul(temp, NULL, 10);
 614             /* TODO: errno check */
 615
 616             cherokee_buffer_add_va (&xml, VIRT_STORAGE_XML, type, name, allocation, unit, capacity, pool_path, hdl->user.buf, name, hdl->user.buf, name);
 617 //            free(pool_path);
 618
 619         }
 620
 621         case domainDefineXML_args: {
 622             ret_t ret;
 623             unsigned int i;
 624             unsigned long vcpu = 0, interface = 0, memory = 0;
 625
 626             cherokee_buffer_t xml_interfaces = CHEROKEE_BUF_INIT;
 627             void *temp = NULL;
 628
 629             ret = cherokee_connection_parse_args (conn);
 630             if (unlikely(ret < ret_ok))
 631                 return ret;
 632
 633             ret = cherokee_avl_get_ptr (conn->arguments, "vcpu", &temp);
 634             if (ret == ret_ok)
 635                 vcpu = strtoul(temp, (char **) NULL, 10);
 636
 637             if (ret != ret_ok || errno == ERANGE || vcpu == 0) {
 638                 conn->error_code = http_internal_error;
 639                 return ret_error;
 640             }
 641
 642
 643             ret = cherokee_avl_get_ptr (conn->arguments, "memory", &temp);
 644             if (ret == ret_ok)
 645                 memory = strtoul(temp, (char **) NULL, 10);
 646
 647             if (ret != ret_ok || errno == ERANGE || memory == 0) {
 648                 conn->error_code = http_internal_error;
 649                 return ret_error;
 650             }
 651
 652
 653             ret = cherokee_avl_get_ptr (conn->arguments, "interface", &temp);
 654             if (ret == ret_ok)
 655                 interface = strtoul(temp, (char **) NULL, 10);
 656
 657             if (ret != ret_ok || errno == ERANGE) {
 658                 conn->error_code = http_internal_error;
 659                 return ret_error;
 660             }
 661
 662             cherokee_buffer_t domu = CHEROKEE_BUF_INIT;
 663             cherokee_buffer_add_va (&domu, "%s_%s", hdl->user.buf, hdl->vm.buf);
 664
 665             for (i = 0; i < interface; i++) {
 666                 char *mac = NULL;
 667                 char *ip  = NULL;
 668                 getNewMac("dv28", domu.buf, &mac, &ip);
 669                 cherokee_buffer_add_va (&xml_interfaces, VIRT_INTERFACE_XML, mac, ip);
 670             }
 671
 672             cherokee_buffer_mrproper(&domu);
 673
 674             cherokee_buffer_add_va (&xml, VIRT_DOMAIN_XML,
 675                 hdl->user.buf, hdl->vm.buf, memory, vcpu, xml_interfaces.buf);
 676
 677             cherokee_buffer_mrproper(&xml_interfaces);
 678             break;
 679         }
 680
 681         case storageVolCreateXML:
 682         case domainDefineXML: {
 683             off_t postl;
 684             cherokee_post_get_len (&conn->post, &postl);
 685             cherokee_post_walk_read (&conn->post, &xml, (cuint_t) postl);
 686             break;
 687         }
 688     }
 689
 690     switch (hdl->action) {
 691         case domainDefineXML_args:
 692         case domainDefineXML: {
 693             result = virDomainDefineXML(virConn, (const char *) xml.buf);
 694             //  printf("%s\n", xml.buf);
 695             cherokee_buffer_mrproper(&xml);
 696
 697             if (result == NULL) {
 698                 /* TODO: vrij maken eventuele uitgegeven macs! */
 699                 conn->error_code = http_internal_error;
 700                 return ret_error;
 701             }
 702
 703             char *output = virDomainGetXMLDesc(result, 0);
 704             /* TODO: store the domain on DISK! */
 705             FILE *fd = fopen("/mnt/netapp/users/%s/%s.xml", "w");
 706             fwrite(output, strlen(output), sizeof(char), fd);
 707             fclose(fd);
 708             cherokee_buffer_add(buf, output, strlen(output));
 709             free(output);
 710             break;
 711         }
 712
 713         case storageVolCreateXML_args:
 714         case storageVolCreateXML: {
 715             printf("%s", &xml.buf);
 716
 717             virStorageVolPtr vol = virStorageVolCreateXML(pool, (const char *) &xml.buf, 0);
 718             virStoragePoolFree(pool);
 719             cherokee_buffer_mrproper(&xml);
 720
 721             if (vol == NULL)
 722                 return ret_error;
 723
 724             cherokee_buffer_add_long10(buf, 0);
 725             break;
 726         }
 727     }
 728
 729     return ret_ok;
 730 }
 731
 732
 733 static ret_t
 734 virt_virt_do(cherokee_handler_virt_t *hdl, cherokee_buffer_t *domu, cherokee_buffer_t *uri)
 735 {
 736     cherokee_connection_t *conn = HANDLER_CONN(hdl);
 737
 738     ret_t ret = ret_error;
 739     virConnectPtr virConn = NULL;
 740
 741
 742     if (HDL_VIRT_PROPS(hdl)->read_only == FALSE)
 743         virConn = virConnectOpen (uri->buf);
 744
 745     if (!virConn && !(virConn = virConnectOpenReadOnly (uri->buf))) {
 746         conn->error_code = http_service_unavailable;
 747         return ret_error;
 748     }
 749
 750     switch (hdl->action) {
 751         case domainDefineXML_args:
 752         case domainDefineXML: {
 753             ret = virt_virt_new(hdl, virConn);
 754             break;
 755         }
 756
 757         default: {
 758             virDomainPtr dom;
 759             if ((dom = virDomainLookupByName(virConn, domu->buf)) == NULL) {
 760                 conn->error_code = http_not_found;
 761             } else {
 762                 ret = virt_virt_function(hdl, dom);
 763                 virDomainFree(dom);
 764             }
 765         }
 766     }
 767
 768     virConnectClose(virConn);
 769     return ret;
 770 }
 771
 772 static ret_t
 773 virt_while (cherokee_buffer_t *key, void *value, void *param) {
 774     cherokee_handler_virt_t * hdl = param;
 775 //    cherokee_buffer_t uri = CHEROKEE_BUF_INIT;
 776 //    cherokee_buffer_add_va (&uri, "xen://%s/", ((cherokee_buffer_t *) value)->buf);
 777 //    virt_virt_do((cherokee_handler_virt_t *) param, key, &uri);
 778 //    cherokee_buffer_mrproper(&uri);
 779
 780     cherokee_buffer_add_va (&hdl->buffer, "<domain><name>%s</name></domain>", key->buf);
 781
 782     return ret_ok;
 783 }
 784
 785 static ret_t
 786 virt_while_user (cherokee_buffer_t *key, void *value, void *param) {
 787     cherokee_handler_virt_t *hdl = param;
 788     if (key->len > hdl->user.len && key->buf[hdl->user.len] == '_' && strncmp(key->buf, hdl->user.buf, hdl->user.len) == 0)
 789         return virt_while (key, value, param);
 790
 791     return ret_ok;
 792 }
 793
 794 static ret_t
 795 virt_build_page (cherokee_handler_virt_t *hdl)
 796 {
 797     ret_t              ret;
 798     cherokee_connection_t *conn = HANDLER_CONN(hdl);
 799     cherokee_buffer_t uri = CHEROKEE_BUF_INIT;
 800     cherokee_buffer_t domu = CHEROKEE_BUF_INIT;
 801
 802     if (hdl->action > xml && HDL_VIRT_PROPS(hdl)->xsl.len > 0)
 803         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);
 804
 805
 806     /* First, block the event loop */
 807     avahi_threaded_poll_lock(HDL_AVAHI_PROPS(hdl)->threaded_poll);
 808     switch (hdl->action) {
 809         case showall:
 810             cherokee_buffer_add_str (&hdl->buffer, "<domains>");
 811             cherokee_avl_while(&HDL_AVAHI_PROPS(hdl)->entries, virt_while, hdl, NULL, NULL);
 812             cherokee_buffer_add_str (&hdl->buffer, "</domains>");
 813             ret = ret_ok;
 814             break;
 815
 816         case showuservms: {
 817             void *param[3];
 818             cherokee_buffer_add_str (&hdl->buffer, "<domains>");
 819             cherokee_avl_while(&HDL_AVAHI_PROPS(hdl)->entries, virt_while_user, hdl, NULL, NULL);
 820             cherokee_buffer_add_str (&hdl->buffer, "</domains>");
 821             ret = ret_ok;
 822             break;
 823         }
 824
 825         default: {
 826             cherokee_buffer_t *hostname = NULL;
 827             cherokee_buffer_add_va (&domu, "%s_%s", hdl->user.buf, hdl->vm.buf);
 828             ret = cherokee_avl_get_ptr(&HDL_AVAHI_PROPS(hdl)->entries, domu.buf, (void **) &hostname);
 829
 830             if (ret == ret_not_found) {
 831                 virDomainPtr virDom;
 832                 virConnectPtr virConn;
 833                 cherokee_buffer_add_va (&uri, "xen://%s/", HDL_VIRT_PROPS(hdl)->virt); // TODO: change!
 834
 835                 if (HDL_VIRT_PROPS(hdl)->read_only == FALSE)
 836                     virConn = virConnectOpen (uri.buf);
 837
 838                 if (!virConn && !(virConn = virConnectOpenReadOnly (uri.buf))) {
 839                     conn->error_code = http_service_unavailable;
 840                     return ret_error;
 841                 }
 842
 843                 if ((virDom = virDomainLookupByName(virConn, domu.buf)) == NULL) {
 844                     if (hdl->action != domainDefineXML_args && hdl->action != domainDefineXML) {
 845                         hdl->action = nothing;
 846                         conn->error_code = http_not_found;
 847                         ret = ret_error;
 848                     } else {
 849                         ret = ret_ok;
 850                     }
 851                 } else {
 852                     virDomainFree(virDom);
 853                     ret = ret_ok;
 854                 }
 855                 virConnectClose (virConn);
 856             } else if (ret == ret_ok) {
 857                 cherokee_buffer_add_va (&uri, "xen://%s/", hostname->buf);
 858                 printf("%s\n", uri.buf);
 859             } else {
 860                 hdl->action = http_internal_error;
 861                 hdl->action = nothing;
 862                 ret = ret_error;
 863             }
 864         }
 865
 866     }
 867     /* Finally, unblock the event loop */
 868     avahi_threaded_poll_unlock(HDL_AVAHI_PROPS(hdl)->threaded_poll);
 869
 870     if (ret == ret_ok && hdl->action != showall && hdl->action != showuservms) {
 871         ret = virt_virt_do(hdl, &domu, &uri);
 872     }
 873
 874     cherokee_buffer_mrproper(&domu);
 875     cherokee_buffer_mrproper(&uri);
 876
 877
 878     return ret;
 879 }
 880
 881
 882 ret_t
 883 cherokee_handler_virt_new  (cherokee_handler_t **hdl, cherokee_connection_t *cnt, cherokee_module_props_t *props)
 884 {
 885         ret_t ret;
 886     CHEROKEE_NEW_STRUCT (n, handler_virt);
 887
 888     /* Init the base class
 889      */
 890
 891     cherokee_handler_init_base(HANDLER(n), cnt, HANDLER_PROPS(props), PLUGIN_INFO_HANDLER_PTR(virt));
 892
 893     MODULE(n)->init         = (handler_func_init_t) cherokee_handler_virt_init;
 894     MODULE(n)->free         = (module_func_free_t) cherokee_handler_virt_free;
 895     HANDLER(n)->step        = (handler_func_step_t) cherokee_handler_virt_step;
 896     HANDLER(n)->add_headers = (handler_func_add_headers_t) cherokee_handler_virt_add_headers;
 897
 898     HANDLER(n)->support = hsupport_length | hsupport_range;
 899
 900     ret = cherokee_buffer_init (&n->buffer);
 901     if (unlikely(ret != ret_ok))
 902         return ret;
 903
 904     ret = cherokee_buffer_ensure_size (&n->buffer, 4*1024);
 905     if (unlikely(ret != ret_ok))
 906         return ret;
 907
 908     *hdl = HANDLER(n);
 909
 910     return ret_ok;
 911 }
 912