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                     if (strcmp(this+13, "CloneXML") == 0) hdl->action = storageVolCloneXML_args;
 270                 }
 271             }
 272             break;
 273
 274         case http_post: {
 275             off_t postl;
 276             cherokee_post_get_len (&conn->post, &postl);
 277
 278             if (postl <= 0 || postl >= (INT_MAX-1)) {
 279                 conn->error_code = http_bad_request;
 280                 return ret_error;
 281             }
 282
 283             if (strncmp(this, "virDomain", 9) == 0) {
 284                 if (strcmp(this+9, "AttachDevice") == 0) hdl->action = domainAttachDevice;
 285                 else if (strcmp(this+9, "DetachDevice") == 0) hdl->action = domainDetachDevice;
 286                 else if (strcmp(this+9, "DefineXML") == 0) hdl->action = domainDefineXML;
 287             }
 288             else if (strncmp(this, "virStorage", 10) == 0) {
 289                 if (strncmp(this+10, "Vol", 3) == 0) {
 290                     if (strcmp(this+13, "CreateXML") == 0) hdl->action = storageVolCreateXML;
 291                 }
 292             }
 293
 294             break;
 295         }
 296
 297         default:
 298             return ret_error;
 299     }
 300
 301     if (hdl->action <= 0) {
 302         conn->error_code = http_bad_request;
 303         return ret_error;
 304     }
 305
 306
 307     return virt_build_page(hdl);
 308 }
 309
 310 ret_t
 311 cherokee_handler_virt_free (cherokee_handler_virt_t *hdl)
 312 {
 313     cherokee_buffer_mrproper (&hdl->buffer);
 314     cherokee_buffer_mrproper (&hdl->user);
 315     cherokee_buffer_mrproper (&hdl->vm);
 316
 317     return ret_ok;
 318 }
 319
 320 ret_t
 321 cherokee_handler_virt_step (cherokee_handler_virt_t *hdl, cherokee_buffer_t *buffer)
 322 {
 323     cherokee_buffer_add_buffer (buffer, &hdl->buffer);
 324     return ret_eof_have_data;
 325 }
 326
 327 ret_t
 328 cherokee_handler_virt_add_headers (cherokee_handler_virt_t *hdl, cherokee_buffer_t *buffer)
 329 {
 330     cherokee_buffer_add_va (buffer, "Content-Length: %d"CRLF, hdl->buffer.len);
 331
 332     if (hdl->action > xml)
 333         cherokee_buffer_add_str (buffer, "Content-Type: application/xml"CRLF);
 334     else
 335         cherokee_buffer_add_str (buffer, "Content-Type: text/plain"CRLF);
 336
 337     return ret_ok;
 338 }
 339
 340 /*
 341 static ret_t
 342 while_func_entries (cherokee_buffer_t *key, void *value, void *param) {
 343     virConnectPtr conn = NULL;
 344     cherokee_buffer_t uri = CHEROKEE_BUF_INIT;
 345     cherokee_buffer_t *buf = (cherokee_buffer_t *)param;
 346
 347     cherokee_buffer_add_va (&uri, "xen://%s/", value);
 348
 349     if (HDL_VIRT_PROPS(hdl)->read_only == FALSE && !(conn = virConnectOpen (uri.buf))) {
 350         if (!(conn = virConnectOpen (uri.buf))) {
 351             return ret_error;
 352         }
 353     }
 354
 355     if (!conn && !(conn = virConnectOpenReadOnly (uri.buf))) {
 356         return ret_error;
 357     } else {
 358         virDomainPtr dom;
 359         if (!(dom = virDomainLookupByName(conn, (const char *) key->buf))) {
 360             return ret_error;
 361         } else {
 362             char *xml = virDomainGetXMLDesc(dom, 0);
 363             cherokee_buffer_add(buf, xml, strlen(xml));
 364         }
 365         virConnectClose(conn);
 366     }
 367
 368     cherokee_buffer_mrproper(&uri);
 369
 370     return ret_ok;
 371 }*/
 372
 373 static ret_t
 374 virt_virt_function(cherokee_handler_virt_t *hdl, virDomainPtr dom) {
 375     cherokee_connection_t *conn = HANDLER_CONN(hdl);
 376     cherokee_buffer_t *buf = &HDL_AVAHI(hdl)->buffer;
 377
 378     switch (hdl->action) {
 379
 380         case domainUndefine: {
 381             int result;
 382             if ((result = virDomainUndefine(dom)) != 0) {
 383                 conn->error_code = http_internal_error;
 384             }
 385
 386             cherokee_buffer_add_long10(buf, result);
 387             break;
 388         }
 389
 390         case domainAttachDevice_args: {
 391             int result;
 392             void *temp;
 393             ret_t ret;
 394             ret = cherokee_connection_parse_args (conn);
 395             if (unlikely(ret < ret_ok))
 396                 return ret;
 397
 398             ret = cherokee_avl_get_ptr (conn->arguments, "type", &temp);
 399
 400             if (ret == ret_ok) {
 401                 cherokee_buffer_t xml = CHEROKEE_BUF_INIT;
 402
 403                 if (strcmp(temp, "disk") == 0) {
 404                     void *file, *device;
 405
 406                     if ((ret = cherokee_avl_get_ptr (conn->arguments, "file", &file)) == ret_ok && (ret = cherokee_avl_get_ptr (conn->arguments, "device", &device)) == ret_ok) {
 407                         cherokee_buffer_add_va (&xml, VIRT_DISK_XML, file, device);
 408                     } else {
 409                         ret = ret_error;
 410                     }
 411                 }
 412
 413                 else if (strcmp(temp, "interface") == 0) {
 414                     void *mac, *ip;
 415                     if ((ret = cherokee_avl_get_ptr (conn->arguments, "mac", &mac)) == ret_ok && (ret = cherokee_avl_get_ptr (conn->arguments, "ip", &ip)) == ret_ok) {
 416                         cherokee_buffer_add_va (&xml, VIRT_INTERFACE_XML, mac, ip);
 417                     } else {
 418                         char *mac = NULL;
 419                         char *ip  = NULL;
 420                         cherokee_buffer_t domu = CHEROKEE_BUF_INIT;
 421                         cherokee_buffer_add_va (&domu, "%s_%s", hdl->user.buf, hdl->vm.buf);
 422                         getNewMac("dv28", domu.buf, &mac, &ip);
 423                         cherokee_buffer_mrproper(&domu);
 424                         cherokee_buffer_add_va (&xml, VIRT_INTERFACE_XML, mac, ip);
 425                     }
 426                 }
 427
 428
 429
 430                 if (ret == ret_ok && (result = virDomainAttachDevice(dom, (const char *) xml.buf)) == 0) {
 431                     ret = ret_ok;
 432                 } else {
 433                     conn->error_code = http_internal_error;
 434                     ret = ret_error;
 435                 }
 436
 437                 cherokee_buffer_add_long10(buf, result);
 438                 cherokee_buffer_mrproper(&xml);
 439             }
 440
 441             return ret;
 442         }
 443
 444         case domainAttachDevice: {
 445             off_t postl;
 446             int result;
 447             cherokee_buffer_t post = CHEROKEE_BUF_INIT;
 448             cherokee_post_get_len (&conn->post, &postl);
 449             cherokee_post_walk_read (&conn->post, &post, (cuint_t) postl);
 450             if ((result = virDomainAttachDevice(dom, (const char *) post.buf)) != 0)
 451                 conn->error_code = http_internal_error;
 452
 453             cherokee_buffer_mrproper(&post);
 454             cherokee_buffer_add_long10(buf, result);
 455             break;
 456         }
 457
 458
 459                         case domainGetXMLDesc: {
 460                             char *xml = virDomainGetXMLDesc(dom, 0);
 461                             cherokee_buffer_add(buf, xml, strlen(xml));
 462                             free(xml);
 463                             break;
 464                         }
 465
 466
 467                         case domainDetachDevice: {
 468                             off_t postl;
 469                             int result;
 470                             cherokee_buffer_t post = CHEROKEE_BUF_INIT;
 471                             cherokee_post_get_len (&conn->post, &postl);
 472                             cherokee_post_walk_read (&conn->post, &post, (cuint_t) postl);
 473                             if ((result = virDomainDetachDevice(dom, (const char *) post.buf)) != 0) {
 474                                 conn->error_code = http_internal_error;
 475                             }
 476                             cherokee_buffer_mrproper(&post);
 477                             cherokee_buffer_add_long10(buf, result);
 478                             break;
 479                         }
 480
 481                         case domainGetID: {
 482                             cherokee_buffer_add_ulong10(buf, virDomainGetID(dom));
 483                             break;
 484                         }
 485                         case domainGetMaxMemory: {
 486                             cherokee_buffer_add_ulong10(buf, virDomainGetMaxMemory  (dom));
 487                             break;
 488                         }
 489                         case domainGetMaxVcpus: {
 490                             cherokee_buffer_add_long10(buf, virDomainGetMaxVcpus  (dom));
 491                             break;
 492                         }
 493                         case domainGetName: {
 494                             const char *name = virDomainGetName (dom);
 495                             cherokee_buffer_add(buf, name, strlen(name));
 496                             break;
 497                         }
 498                         case domainGetUUID: {
 499                             unsigned char uuid[VIR_UUID_BUFLEN];
 500                             if (virDomainGetUUID(dom, uuid) == 0) {
 501                                 cherokee_buffer_add_str(buf, uuid);
 502                             } else {
 503                                 conn->error_code = http_internal_error;
 504                                 return ret_error;
 505                             }
 506                             break;
 507                         }
 508                         case domainGetUUIDString: {
 509                             unsigned char uuid[VIR_UUID_STRING_BUFLEN];
 510                             if (virDomainGetUUIDString(dom, uuid) == 0) {
 511                                 cherokee_buffer_add_str(buf, uuid);
 512                             } else {
 513                                 conn->error_code = http_internal_error;
 514                                 return ret_error;
 515                             }
 516                             break;
 517                         }
 518
 519                         case domainCreate: {
 520                             cherokee_buffer_add_long10(buf, virDomainCreate  (dom));
 521                             break;
 522                         }
 523
 524                         case domainDestroy: {
 525                             cherokee_buffer_add_long10(buf, virDomainDestroy  (dom));
 526                             break;
 527                         }
 528
 529                         case domainReboot: {
 530                             cherokee_buffer_add_long10(buf, virDomainReboot  (dom, 0));
 531                             break;
 532                         }
 533
 534                         case domainShutdown: {
 535                             cherokee_buffer_add_long10(buf, virDomainShutdown  (dom));
 536                             break;
 537                         }
 538
 539
 540                         case domainGetOSType: {
 541                             char *ostype = virDomainGetOSType(dom);
 542                             cherokee_buffer_add(buf, ostype, strlen(ostype));
 543                             free(ostype);
 544                             break;
 545                         }
 546
 547     }
 548
 549     return ret_ok;
 550 }
 551
 552 static ret_t
 553 virt_virt_new(cherokee_handler_virt_t *hdl, virConnectPtr virConn)
 554 {
 555   cherokee_buffer_t *buf = &HDL_AVAHI(hdl)->buffer;
 556   cherokee_connection_t *conn = HANDLER_CONN(hdl);
 557   cherokee_buffer_t xml = CHEROKEE_BUF_INIT;
 558   virDomainPtr result;
 559   virStoragePoolPtr pool;
 560   virStorageVolPtr volume;
 561
 562   switch (hdl->action) {
 563         case storageVolCloneXML_args: {
 564             void *temp, *name;
 565             const char *source;
 566             ret_t ret;
 567             ret = cherokee_connection_parse_args (conn);
 568             if (unlikely(ret < ret_ok)) {
 569                 conn->error_code = http_internal_error;
 570                 return ret_error;
 571             }
 572
 573             ret = cherokee_avl_get_ptr (conn->arguments, "pool", &temp);
 574             if (unlikely(ret < ret_ok)) {
 575                 conn->error_code = http_bad_request;
 576                 return ret;
 577             }
 578
 579             pool = virStoragePoolLookupByName(virConn, temp);
 580
 581             if (pool == NULL) {
 582                 conn->error_code = http_not_found;
 583                 return ret_error;
 584             }
 585
 586             ret = cherokee_avl_get_ptr (conn->arguments, "volume", &temp);
 587             if (unlikely(ret < ret_ok)) {
 588                 conn->error_code = http_bad_request;
 589                 return ret;
 590             }
 591
 592             volume = virStorageVolLookupByName(pool, temp);
 593
 594             if (volume == NULL) {
 595                 conn->error_code = http_not_found;
 596                 return ret_error;
 597             }
 598
 599             source =  virStorageVolGetKey(volume);
 600
 601             ret = cherokee_avl_get_ptr (conn->arguments, "name", &name);
 602             if (unlikely(ret < ret_ok)) {
 603                 virStorageVolFree(volume);
 604                 virStoragePoolFree(pool);
 605                 conn->error_code = http_bad_request;
 606                 return ret;
 607             }
 608
 609             ret = cherokee_avl_get_ptr (conn->arguments, "type", &temp);
 610             if (unlikely(ret < ret_ok)) {
 611                 virStorageVolFree(volume);
 612                 virStoragePoolFree(pool);
 613                 conn->error_code = http_bad_request;
 614                 return ret;
 615             }
 616
 617             enum { UNKNOWN, RAW, QCOW } clone = UNKNOWN;
 618
 619             if (strcmp("raw", temp) == 0)
 620                 clone = RAW;
 621             else if (strcmp("qcow", temp) == 0)
 622                 clone = QCOW;
 623             else {
 624                 virStorageVolFree(volume);
 625                 virStoragePoolFree(pool);
 626                 conn->error_code = http_bad_request;
 627                 return ret_error;
 628             }
 629
 630             cherokee_buffer_t busy = CHEROKEE_BUF_INIT;
 631             cherokee_buffer_add_va (&busy, "/mnt/netapp/images/%s_%s.queued", hdl->user.buf, name);
 632
 633             if (unlikely(symlink(source, busy.buf) == 1)) {
 634                 virStorageVolFree(volume);
 635                 virStoragePoolFree(pool);
 636                 conn->error_code = http_internal_error;
 637                 return ret_error;
 638             }
 639
 640             cherokee_buffer_mrproper(&busy);
 641             cherokee_buffer_add_str(buf, "BUSY");
 642
 643             break;
 644         }
 645
 646         case storageVolCreateXML_args: {
 647             void *temp, *type, *name, *unit;
 648             char *pool_path;
 649             unsigned long int capacity, allocation;
 650             ret_t ret;
 651             ret = cherokee_connection_parse_args (conn);
 652             if (unlikely(ret < ret_ok))
 653                 return ret;
 654
 655             ret = cherokee_avl_get_ptr (conn->arguments, "pool", &temp);
 656             if (unlikely(ret < ret_ok))
 657                 return ret;
 658
 659             pool = virStoragePoolLookupByName(virConn, temp);
 660
 661             if (pool == NULL)
 662                 return ret_error;
 663
 664             pool_path = "/mnt/netapp/users";
 665             /*
 666             pool_path = virStoragePoolGetPath(pool);
 667
 668             if (!pool_path) {
 669                 virStoragePoolFree(pool);
 670                 return  ret_error;
 671             }
 672             */
 673
 674
 675             ret = cherokee_avl_get_ptr (conn->arguments, "name", &name);
 676             if (unlikely(ret < ret_ok))
 677                 return ret;
 678
 679             ret = cherokee_avl_get_ptr (conn->arguments, "type", &type);
 680             if (unlikely(ret < ret_ok))
 681                 return ret;
 682
 683             ret = cherokee_avl_get_ptr (conn->arguments, "unit", &unit);
 684             if (unlikely(ret < ret_ok))
 685                 return ret;
 686
 687             ret = cherokee_avl_get_ptr (conn->arguments, "allocation", &temp);
 688             if (unlikely(ret < ret_ok))
 689                 return ret;
 690
 691             allocation = strtoul(temp, NULL, 10);
 692             /* TODO: errno check */
 693
 694             ret = cherokee_avl_get_ptr (conn->arguments, "capacity", &temp);
 695             if (unlikely(ret < ret_ok))
 696                 return ret;
 697
 698             capacity = strtoul(temp, NULL, 10);
 699             /* TODO: errno check */
 700
 701             cherokee_buffer_add_va (&xml, VIRT_STORAGE_XML, type, name, allocation, unit, capacity, pool_path, hdl->user.buf, name, hdl->user.buf, name);
 702 //            free(pool_path);
 703             break;
 704         }
 705
 706         case domainDefineXML_args: {
 707             ret_t ret;
 708             unsigned int i;
 709             unsigned long vcpu = 0, interface = 0, memory = 0;
 710
 711             cherokee_buffer_t xml_interfaces = CHEROKEE_BUF_INIT;
 712             void *temp = NULL;
 713
 714             ret = cherokee_connection_parse_args (conn);
 715             if (unlikely(ret < ret_ok))
 716                 return ret;
 717
 718             ret = cherokee_avl_get_ptr (conn->arguments, "vcpu", &temp);
 719             if (ret == ret_ok)
 720                 vcpu = strtoul(temp, (char **) NULL, 10);
 721
 722             if (ret != ret_ok || errno == ERANGE || vcpu == 0) {
 723                 conn->error_code = http_internal_error;
 724                 return ret_error;
 725             }
 726
 727
 728             ret = cherokee_avl_get_ptr (conn->arguments, "memory", &temp);
 729             if (ret == ret_ok)
 730                 memory = strtoul(temp, (char **) NULL, 10);
 731
 732             if (ret != ret_ok || errno == ERANGE || memory == 0) {
 733                 conn->error_code = http_internal_error;
 734                 return ret_error;
 735             }
 736
 737
 738             ret = cherokee_avl_get_ptr (conn->arguments, "interface", &temp);
 739             if (ret == ret_ok)
 740                 interface = strtoul(temp, (char **) NULL, 10);
 741
 742             if (ret != ret_ok || errno == ERANGE) {
 743                 conn->error_code = http_internal_error;
 744                 return ret_error;
 745             }
 746
 747             cherokee_buffer_t domu = CHEROKEE_BUF_INIT;
 748             cherokee_buffer_add_va (&domu, "%s_%s", hdl->user.buf, hdl->vm.buf);
 749
 750             for (i = 0; i < interface; i++) {
 751                 char *mac = NULL;
 752                 char *ip  = NULL;
 753                 getNewMac("dv28", domu.buf, &mac, &ip);
 754                 cherokee_buffer_add_va (&xml_interfaces, VIRT_INTERFACE_XML, mac, ip);
 755             }
 756
 757             cherokee_buffer_mrproper(&domu);
 758
 759             cherokee_buffer_add_va (&xml, VIRT_DOMAIN_XML,
 760                 hdl->user.buf, hdl->vm.buf, memory, vcpu, xml_interfaces.buf);
 761
 762             cherokee_buffer_mrproper(&xml_interfaces);
 763             break;
 764         }
 765
 766         case storageVolCreateXML:
 767         case domainDefineXML: {
 768             off_t postl;
 769             cherokee_post_get_len (&conn->post, &postl);
 770             cherokee_post_walk_read (&conn->post, &xml, (cuint_t) postl);
 771             break;
 772         }
 773     }
 774
 775     switch (hdl->action) {
 776         case domainDefineXML_args:
 777         case domainDefineXML: {
 778             result = virDomainDefineXML(virConn, (const char *) xml.buf);
 779             //  printf("%s\n", xml.buf);
 780             cherokee_buffer_mrproper(&xml);
 781
 782             if (result == NULL) {
 783                 /* TODO: vrij maken eventuele uitgegeven macs! */
 784                 conn->error_code = http_internal_error;
 785                 return ret_error;
 786             }
 787
 788             FILE *fd;
 789             if ((fd = fopen("/mnt/netapp/users/%s/%s.xml", "w")) == NULL) {
 790                 /* eigenlijk alles opschonen... */
 791                 conn->error_code = http_internal_error;
 792                 return ret_error;
 793             } else {
 794                 char *output = virDomainGetXMLDesc(result, 0);
 795                 fwrite(output, strlen(output), sizeof(char), fd);
 796                 fclose(fd);
 797                 cherokee_buffer_add(buf, output, strlen(output));
 798                 free(output);
 799             }
 800             break;
 801         }
 802
 803         case storageVolCreateXML_args:
 804         case storageVolCreateXML: {
 805             printf("%s", &xml.buf);
 806
 807             virStorageVolPtr vol = virStorageVolCreateXML(pool, (const char *) &xml.buf, 0);
 808             virStoragePoolFree(pool);
 809             cherokee_buffer_mrproper(&xml);
 810
 811             if (vol == NULL)
 812                 return ret_error;
 813
 814             cherokee_buffer_add_long10(buf, 0);
 815             break;
 816         }
 817     }
 818
 819     return ret_ok;
 820 }
 821
 822
 823 static ret_t
 824 virt_virt_do(cherokee_handler_virt_t *hdl, cherokee_buffer_t *domu, cherokee_buffer_t *uri)
 825 {
 826     cherokee_connection_t *conn = HANDLER_CONN(hdl);
 827
 828     ret_t ret = ret_error;
 829     virConnectPtr virConn = NULL;
 830
 831
 832     if (HDL_VIRT_PROPS(hdl)->read_only == FALSE)
 833         virConn = virConnectOpen (uri->buf);
 834
 835     if (!virConn && !(virConn = virConnectOpenReadOnly (uri->buf))) {
 836         conn->error_code = http_service_unavailable;
 837         return ret_error;
 838     }
 839
 840     switch (hdl->action) {
 841         case storageVolCloneXML_args:
 842         case storageVolCreateXML_args:
 843         case storageVolCreateXML:
 844         case domainDefineXML_args:
 845         case domainDefineXML: {
 846             ret = virt_virt_new(hdl, virConn);
 847             break;
 848         }
 849
 850         default: {
 851             virDomainPtr dom;
 852             if ((dom = virDomainLookupByName(virConn, domu->buf)) == NULL) {
 853                 conn->error_code = http_not_found;
 854             } else {
 855                 ret = virt_virt_function(hdl, dom);
 856                 virDomainFree(dom);
 857             }
 858         }
 859     }
 860
 861     virConnectClose(virConn);
 862     return ret;
 863 }
 864
 865 static ret_t
 866 virt_while (cherokee_buffer_t *key, void *value, void *param) {
 867     cherokee_handler_virt_t * hdl = param;
 868 //    cherokee_buffer_t uri = CHEROKEE_BUF_INIT;
 869 //    cherokee_buffer_add_va (&uri, "xen://%s/", ((cherokee_buffer_t *) value)->buf);
 870 //    virt_virt_do((cherokee_handler_virt_t *) param, key, &uri);
 871 //    cherokee_buffer_mrproper(&uri);
 872
 873     cherokee_buffer_add_va (&hdl->buffer, "<domain><name>%s</name></domain>", key->buf);
 874
 875     return ret_ok;
 876 }
 877
 878 static ret_t
 879 virt_while_user (cherokee_buffer_t *key, void *value, void *param) {
 880     cherokee_handler_virt_t *hdl = param;
 881     if (key->len > hdl->user.len && key->buf[hdl->user.len] == '_' && strncmp(key->buf, hdl->user.buf, hdl->user.len) == 0)
 882         return virt_while (key, value, param);
 883
 884     return ret_ok;
 885 }
 886
 887 static ret_t
 888 virt_build_page (cherokee_handler_virt_t *hdl)
 889 {
 890     ret_t              ret;
 891     cherokee_connection_t *conn = HANDLER_CONN(hdl);
 892     cherokee_buffer_t uri = CHEROKEE_BUF_INIT;
 893     cherokee_buffer_t domu = CHEROKEE_BUF_INIT;
 894
 895     if (hdl->action > xml && HDL_VIRT_PROPS(hdl)->xsl.len > 0)
 896         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);
 897
 898
 899     /* First, block the event loop */
 900     avahi_threaded_poll_lock(HDL_AVAHI_PROPS(hdl)->threaded_poll);
 901     switch (hdl->action) {
 902         case showall:
 903             cherokee_buffer_add_str (&hdl->buffer, "<domains>");
 904             cherokee_avl_while(&HDL_AVAHI_PROPS(hdl)->entries, virt_while, hdl, NULL, NULL);
 905             cherokee_buffer_add_str (&hdl->buffer, "</domains>");
 906             ret = ret_ok;
 907             break;
 908
 909         case showuservms: {
 910             void *param[3];
 911             cherokee_buffer_add_str (&hdl->buffer, "<domains>");
 912             cherokee_avl_while(&HDL_AVAHI_PROPS(hdl)->entries, virt_while_user, hdl, NULL, NULL);
 913             cherokee_buffer_add_str (&hdl->buffer, "</domains>");
 914             ret = ret_ok;
 915             break;
 916         }
 917
 918         default: {
 919             cherokee_buffer_t *hostname = NULL;
 920             cherokee_buffer_add_va (&domu, "%s_%s", hdl->user.buf, hdl->vm.buf);
 921             ret = cherokee_avl_get_ptr(&HDL_AVAHI_PROPS(hdl)->entries, domu.buf, (void **) &hostname);
 922
 923             if (ret == ret_not_found) {
 924                 virDomainPtr virDom;
 925                 virConnectPtr virConn;
 926                 cherokee_buffer_add_va (&uri, "xen://%s/", HDL_VIRT_PROPS(hdl)->virt); // TODO: change!
 927
 928                 if (HDL_VIRT_PROPS(hdl)->read_only == FALSE)
 929                     virConn = virConnectOpen (uri.buf);
 930
 931                 if (!virConn && !(virConn = virConnectOpenReadOnly (uri.buf))) {
 932                     conn->error_code = http_service_unavailable;
 933                     return ret_error;
 934                 }
 935
 936                 if ((virDom = virDomainLookupByName(virConn, domu.buf)) == NULL) {
 937                     if (hdl->action != domainDefineXML_args && hdl->action != domainDefineXML) {
 938                         hdl->action = nothing;
 939                         conn->error_code = http_not_found;
 940                         ret = ret_error;
 941                     } else {
 942                         ret = ret_ok;
 943                     }
 944                 } else {
 945                     virDomainFree(virDom);
 946                     ret = ret_ok;
 947                 }
 948                 virConnectClose (virConn);
 949             } else if (ret == ret_ok) {
 950                 cherokee_buffer_add_va (&uri, "xen://%s/", hostname->buf);
 951                 printf("%s\n", uri.buf);
 952             } else {
 953                 hdl->action = http_internal_error;
 954                 hdl->action = nothing;
 955                 ret = ret_error;
 956             }
 957         }
 958
 959     }
 960     /* Finally, unblock the event loop */
 961     avahi_threaded_poll_unlock(HDL_AVAHI_PROPS(hdl)->threaded_poll);
 962
 963     if (ret == ret_ok && hdl->action != showall && hdl->action != showuservms) {
 964         ret = virt_virt_do(hdl, &domu, &uri);
 965     }
 966
 967     cherokee_buffer_mrproper(&domu);
 968     cherokee_buffer_mrproper(&uri);
 969
 970
 971     return ret;
 972 }
 973
 974
 975 ret_t
 976 cherokee_handler_virt_new  (cherokee_handler_t **hdl, cherokee_connection_t *cnt, cherokee_module_props_t *props)
 977 {
 978         ret_t ret;
 979     CHEROKEE_NEW_STRUCT (n, handler_virt);
 980
 981     /* Init the base class
 982      */
 983
 984     cherokee_handler_init_base(HANDLER(n), cnt, HANDLER_PROPS(props), PLUGIN_INFO_HANDLER_PTR(virt));
 985
 986     MODULE(n)->init         = (handler_func_init_t) cherokee_handler_virt_init;
 987     MODULE(n)->free         = (module_func_free_t) cherokee_handler_virt_free;
 988     HANDLER(n)->step        = (handler_func_step_t) cherokee_handler_virt_step;
 989     HANDLER(n)->add_headers = (handler_func_add_headers_t) cherokee_handler_virt_add_headers;
 990
 991     HANDLER(n)->support = hsupport_length | hsupport_range;
 992
 993     ret = cherokee_buffer_init (&n->buffer);
 994     if (unlikely(ret != ret_ok))
 995         return ret;
 996
 997     ret = cherokee_buffer_ensure_size (&n->buffer, 4*1024);
 998     if (unlikely(ret != ret_ok))
 999         return ret;
1000
1001     *hdl = HANDLER(n);
1002
1003     return ret_ok;
1004 }
1005