1 #!/usr/bin/env python 2 3 """ 4 A Web interface to a user's calendar. 5 6 Copyright (C) 2014, 2015 Paul Boddie <paul@boddie.org.uk> 7 8 This program is free software; you can redistribute it and/or modify it under 9 the terms of the GNU General Public License as published by the Free Software 10 Foundation; either version 3 of the License, or (at your option) any later 11 version. 12 13 This program is distributed in the hope that it will be useful, but WITHOUT 14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS 15 FOR A PARTICULAR PURPOSE. See the GNU General Public License for more 16 details. 17 18 You should have received a copy of the GNU General Public License along with 19 this program. If not, see <http://www.gnu.org/licenses/>. 20 """ 21 22 # Edit this path to refer to the location of the imiptools libraries, if 23 # necessary. 24 25 LIBRARY_PATH = "/var/lib/imip-agent" 26 27 from datetime import date, datetime, timedelta 28 import babel.dates 29 import pytz 30 import cgi, os, sys 31 32 sys.path.append(LIBRARY_PATH) 33 34 from imiptools.content import Handler 35 from imiptools.data import get_address, get_uri, get_window_end, make_freebusy, \ 36 Object, to_part, \ 37 uri_dict, uri_item, uri_items, uri_values 38 from imiptools.dates import format_datetime, format_time, get_date, get_datetime, \ 39 get_datetime_item, get_default_timezone, \ 40 get_end_of_day, get_start_of_day, get_start_of_next_day, \ 41 get_timestamp, ends_on_same_day, to_timezone 42 from imiptools.mail import Messenger 43 from imiptools.period import add_day_start_points, add_empty_days, add_slots, \ 44 convert_periods, get_freebusy_details, \ 45 get_scale, have_conflict, get_slots, get_spans, \ 46 partition_by_day, remove_period, remove_affected_period, \ 47 update_freebusy 48 from imiptools.profile import Preferences 49 import imip_store 50 import markup 51 52 getenv = os.environ.get 53 setenv = os.environ.__setitem__ 54 55 class CGIEnvironment: 56 57 "A CGI-compatible environment." 58 59 def __init__(self, charset=None): 60 self.charset = charset 61 self.args = None 62 self.method = None 63 self.path = None 64 self.path_info = None 65 self.user = None 66 67 def get_args(self): 68 if self.args is None: 69 if self.get_method() != "POST": 70 setenv("QUERY_STRING", "") 71 args = cgi.parse(keep_blank_values=True) 72 73 if not self.charset: 74 self.args = args 75 else: 76 self.args = {} 77 for key, values in args.items(): 78 self.args[key] = [unicode(value, self.charset) for value in values] 79 80 return self.args 81 82 def get_method(self): 83 if self.method is None: 84 self.method = getenv("REQUEST_METHOD") or "GET" 85 return self.method 86 87 def get_path(self): 88 if self.path is None: 89 self.path = getenv("SCRIPT_NAME") or "" 90 return self.path 91 92 def get_path_info(self): 93 if self.path_info is None: 94 self.path_info = getenv("PATH_INFO") or "" 95 return self.path_info 96 97 def get_user(self): 98 if self.user is None: 99 self.user = getenv("REMOTE_USER") or "" 100 return self.user 101 102 def get_output(self): 103 return sys.stdout 104 105 def get_url(self): 106 path = self.get_path() 107 path_info = self.get_path_info() 108 return "%s%s" % (path.rstrip("/"), path_info) 109 110 def new_url(self, path_info): 111 path = self.get_path() 112 return "%s/%s" % (path.rstrip("/"), path_info.lstrip("/")) 113 114 class Common: 115 116 "Common handler and manager methods." 117 118 def __init__(self, user): 119 self.user = user 120 self.preferences = None 121 122 def get_preferences(self): 123 if not self.preferences: 124 self.preferences = Preferences(self.user) 125 return self.preferences 126 127 def get_tzid(self): 128 prefs = self.get_preferences() 129 return prefs.get("TZID") or get_default_timezone() 130 131 def get_window_size(self): 132 prefs = self.get_preferences() 133 try: 134 return int(prefs.get("window_size")) 135 except (TypeError, ValueError): 136 return 100 137 138 def get_window_end(self): 139 return get_window_end(self.get_tzid(), self.get_window_size()) 140 141 def update_attendees(self, obj, added, removed): 142 143 """ 144 Update the attendees in 'obj' with the given 'added' and 'removed' 145 attendee lists. A list is returned containing the attendees whose 146 attendance should be cancelled. 147 """ 148 149 to_cancel = [] 150 151 if added or removed: 152 attendees = uri_items(obj.get_items("ATTENDEE") or []) 153 154 if removed: 155 remaining = [] 156 157 for attendee, attendee_attr in attendees: 158 if attendee in removed: 159 to_cancel.append((attendee, attendee_attr)) 160 else: 161 remaining.append((attendee, attendee_attr)) 162 163 attendees = remaining 164 165 if added: 166 for attendee in added: 167 attendees.append((attendee, {"PARTSTAT" : "NEEDS-ACTION", "RSVP" : "TRUE"})) 168 169 obj["ATTENDEE"] = attendees 170 171 return to_cancel 172 173 class ManagerHandler(Common, Handler): 174 175 """ 176 A content handler for use by the manager, as opposed to operating within the 177 mail processing pipeline. 178 """ 179 180 def __init__(self, obj, user, messenger): 181 Handler.__init__(self, messenger=messenger) 182 Common.__init__(self, user) 183 184 self.set_object(obj) 185 186 # Communication methods. 187 188 def send_message(self, method, sender, for_organiser): 189 190 """ 191 Create a full calendar object employing the given 'method', and send it 192 to the appropriate recipients, also sending a copy to the 'sender'. The 193 'for_organiser' value indicates whether the organiser is sending this 194 message. 195 """ 196 197 parts = [self.obj.to_part(method)] 198 199 # As organiser, send an invitation to attendees, excluding oneself if 200 # also attending. The updated event will be saved by the outgoing 201 # handler. 202 203 organiser = get_uri(self.obj.get_value("ORGANIZER")) 204 attendees = uri_values(self.obj.get_values("ATTENDEE")) 205 206 if for_organiser: 207 recipients = [get_address(attendee) for attendee in attendees if attendee != self.user] 208 else: 209 recipients = [get_address(organiser)] 210 211 # Bundle free/busy information if appropriate. 212 213 preferences = Preferences(self.user) 214 215 if preferences.get("freebusy_sharing") == "share" and \ 216 preferences.get("freebusy_bundling") == "always": 217 218 # Invent a unique identifier. 219 220 utcnow = get_timestamp() 221 uid = "imip-agent-%s-%s" % (utcnow, get_address(self.user)) 222 223 freebusy = self.store.get_freebusy(self.user) 224 225 # Replace the non-updated free/busy details for this event with 226 # newer details (since the outgoing handler updates this user's 227 # free/busy details). 228 229 update_freebusy(freebusy, 230 self.obj.get_periods_for_freebusy(self.get_tzid(), self.get_window_end()), 231 self.obj.get_value("TRANSP") or "OPAQUE", 232 self.uid, self.recurrenceid, 233 self.obj.get_value("SUMMARY"), 234 organiser) 235 236 user_attr = self.messenger and self.messenger.sender != get_address(self.user) and \ 237 {"SENT-BY" : get_uri(self.messenger.sender)} or {} 238 239 parts.append(to_part("PUBLISH", [ 240 make_freebusy(freebusy, uid, self.user, user_attr) 241 ])) 242 243 message = self.messenger.make_outgoing_message(parts, recipients, outgoing_bcc=sender) 244 self.messenger.sendmail(recipients, message.as_string(), outgoing_bcc=sender) 245 246 # Action methods. 247 248 def process_received_request(self, update=False): 249 250 """ 251 Process the current request for the given 'user'. Return whether any 252 action was taken. 253 254 If 'update' is given, the sequence number will be incremented in order 255 to override any previous response. 256 """ 257 258 # Reply only on behalf of this user. 259 260 for attendee, attendee_attr in uri_items(self.obj.get_items("ATTENDEE")): 261 262 if attendee == self.user: 263 if attendee_attr.has_key("RSVP"): 264 del attendee_attr["RSVP"] 265 if self.messenger and self.messenger.sender != get_address(attendee): 266 attendee_attr["SENT-BY"] = get_uri(self.messenger.sender) 267 self.obj["ATTENDEE"] = [(attendee, attendee_attr)] 268 269 self.update_dtstamp() 270 self.set_sequence(update) 271 272 self.send_message("REPLY", get_address(attendee), for_organiser=False) 273 274 return True 275 276 return False 277 278 def process_created_request(self, method, update=False, removed=None, added=None): 279 280 """ 281 Process the current request for the given 'user', sending a created 282 request of the given 'method' to attendees. Return whether any action 283 was taken. 284 285 If 'update' is given, the sequence number will be incremented in order 286 to override any previous message. 287 288 If 'removed' is specified, a list of participants to be removed is 289 provided. 290 291 If 'added' is specified, a list of participants to be added is provided. 292 """ 293 294 organiser, organiser_attr = uri_item(self.obj.get_item("ORGANIZER")) 295 296 if self.messenger and self.messenger.sender != get_address(organiser): 297 organiser_attr["SENT-BY"] = get_uri(self.messenger.sender) 298 299 # Update the attendees in the event. 300 301 to_cancel = self.update_attendees(self.obj, added, removed) 302 303 self.update_dtstamp() 304 self.set_sequence(update) 305 306 self.send_message(method, get_address(organiser), for_organiser=True) 307 308 # When cancelling, replace the attendees with those for whom the event 309 # is now cancelled. 310 311 if to_cancel: 312 remaining = self.obj["ATTENDEE"] 313 self.obj["ATTENDEE"] = to_cancel 314 self.send_message("CANCEL", get_address(organiser), for_organiser=True) 315 316 # Just in case more work is done with this event, the attendees are 317 # now restored. 318 319 self.obj["ATTENDEE"] = remaining 320 321 return True 322 323 class Manager(Common): 324 325 "A simple manager application." 326 327 def __init__(self, messenger=None): 328 self.messenger = messenger or Messenger() 329 self.encoding = "utf-8" 330 self.env = CGIEnvironment(self.encoding) 331 332 user = self.env.get_user() 333 Common.__init__(self, user and get_uri(user) or None) 334 335 self.locale = None 336 self.requests = None 337 338 self.out = self.env.get_output() 339 self.page = markup.page() 340 self.html_ids = None 341 342 self.store = imip_store.FileStore() 343 self.objects = {} 344 345 try: 346 self.publisher = imip_store.FilePublisher() 347 except OSError: 348 self.publisher = None 349 350 def _get_identifiers(self, path_info): 351 parts = path_info.lstrip("/").split("/") 352 if len(parts) == 1: 353 return parts[0], None 354 else: 355 return parts[:2] 356 357 def _get_object(self, uid, recurrenceid=None): 358 if self.objects.has_key((uid, recurrenceid)): 359 return self.objects[(uid, recurrenceid)] 360 361 fragment = uid and self.store.get_event(self.user, uid, recurrenceid) or None 362 obj = self.objects[(uid, recurrenceid)] = fragment and Object(fragment) 363 return obj 364 365 def _get_recurrences(self, uid): 366 return self.store.get_recurrences(self.user, uid) 367 368 def _get_requests(self): 369 if self.requests is None: 370 cancellations = self.store.get_cancellations(self.user) 371 requests = set(self.store.get_requests(self.user)) 372 self.requests = requests.difference(cancellations) 373 return self.requests 374 375 def _get_request_summary(self): 376 summary = [] 377 for uid, recurrenceid in self._get_requests(): 378 obj = self._get_object(uid, recurrenceid) 379 if obj: 380 periods = obj.get_periods_for_freebusy(self.get_tzid(), self.get_window_end()) 381 recurrenceids = self._get_recurrences(uid) 382 383 # Convert the periods to more substantial free/busy items. 384 385 for start, end in periods: 386 387 # Subtract any recurrences from the free/busy details of a 388 # parent object. 389 390 if recurrenceid or start not in recurrenceids: 391 summary.append(( 392 start, end, uid, 393 obj.get_value("TRANSP"), 394 recurrenceid, 395 obj.get_value("SUMMARY"), 396 obj.get_value("ORGANIZER") 397 )) 398 return summary 399 400 # Preference methods. 401 402 def get_user_locale(self): 403 if not self.locale: 404 self.locale = self.get_preferences().get("LANG", "en") 405 return self.locale 406 407 # Prettyprinting of dates and times. 408 409 def format_date(self, dt, format): 410 return self._format_datetime(babel.dates.format_date, dt, format) 411 412 def format_time(self, dt, format): 413 return self._format_datetime(babel.dates.format_time, dt, format) 414 415 def format_datetime(self, dt, format): 416 return self._format_datetime( 417 isinstance(dt, datetime) and babel.dates.format_datetime or babel.dates.format_date, 418 dt, format) 419 420 def _format_datetime(self, fn, dt, format): 421 return fn(dt, format=format, locale=self.get_user_locale()) 422 423 # Data management methods. 424 425 def remove_request(self, uid, recurrenceid=None): 426 return self.store.dequeue_request(self.user, uid, recurrenceid) 427 428 def remove_event(self, uid, recurrenceid=None): 429 return self.store.remove_event(self.user, uid, recurrenceid) 430 431 def update_freebusy(self, uid, recurrenceid, obj): 432 433 """ 434 Update stored free/busy details for the event with the given 'uid' and 435 'recurrenceid' having a representation of 'obj'. 436 """ 437 438 is_only_organiser = self.user not in uri_values(obj.get_values("ATTENDEE")) 439 440 freebusy = self.store.get_freebusy(self.user) 441 442 update_freebusy(freebusy, 443 obj.get_periods_for_freebusy(self.get_tzid(), self.get_window_end()), 444 is_only_organiser and "ORG" or obj.get_value("TRANSP"), 445 uid, recurrenceid, 446 obj.get_value("SUMMARY"), 447 obj.get_value("ORGANIZER")) 448 449 # Subtract any recurrences from the free/busy details of a parent 450 # object. 451 452 for recurrenceid in self._get_recurrences(uid): 453 remove_affected_period(freebusy, uid, recurrenceid) 454 455 self.store.set_freebusy(self.user, freebusy) 456 457 def remove_from_freebusy(self, uid, recurrenceid=None): 458 freebusy = self.store.get_freebusy(self.user) 459 remove_period(freebusy, uid, recurrenceid) 460 self.store.set_freebusy(self.user, freebusy) 461 462 # Presentation methods. 463 464 def new_page(self, title): 465 self.page.init(title=title, charset=self.encoding, css=self.env.new_url("styles.css")) 466 self.html_ids = set() 467 468 def status(self, code, message): 469 self.header("Status", "%s %s" % (code, message)) 470 471 def header(self, header, value): 472 print >>self.out, "%s: %s" % (header, value) 473 474 def no_user(self): 475 self.status(403, "Forbidden") 476 self.new_page(title="Forbidden") 477 self.page.p("You are not logged in and thus cannot access scheduling requests.") 478 479 def no_page(self): 480 self.status(404, "Not Found") 481 self.new_page(title="Not Found") 482 self.page.p("No page is provided at the given address.") 483 484 def redirect(self, url): 485 self.status(302, "Redirect") 486 self.header("Location", url) 487 self.new_page(title="Redirect") 488 self.page.p("Redirecting to: %s" % url) 489 490 def link_to(self, uid, recurrenceid=None): 491 if recurrenceid: 492 return self.env.new_url("/".join([uid, recurrenceid])) 493 else: 494 return self.env.new_url(uid) 495 496 # Request logic methods. 497 498 def handle_newevent(self): 499 500 """ 501 Handle any new event operation, creating a new event and redirecting to 502 the event page for further activity. 503 """ 504 505 # Handle a submitted form. 506 507 args = self.env.get_args() 508 509 if not args.has_key("newevent"): 510 return 511 512 # Create a new event using the available information. 513 514 slots = args.get("slot", []) 515 participants = args.get("participants", []) 516 517 if not slots: 518 return 519 520 # Obtain the user's timezone. 521 522 tzid = self.get_tzid() 523 524 # Coalesce the selected slots. 525 526 slots.sort() 527 coalesced = [] 528 last = None 529 530 for slot in slots: 531 start, end = slot.split("-") 532 start = get_datetime(start, {"TZID" : tzid}) 533 end = end and get_datetime(end, {"TZID" : tzid}) or get_start_of_next_day(start, tzid) 534 535 if last: 536 last_start, last_end = last 537 538 # Merge adjacent dates and datetimes. 539 540 if start == last_end or \ 541 not isinstance(start, datetime) and \ 542 get_start_of_day(last_end, tzid) == get_start_of_day(start, tzid): 543 544 last = last_start, end 545 continue 546 547 # Handle datetimes within dates. 548 # Datetime periods are within single days and are therefore 549 # discarded. 550 551 elif not isinstance(last_start, datetime) and \ 552 get_start_of_day(start, tzid) == get_start_of_day(last_start, tzid): 553 554 continue 555 556 # Add separate dates and datetimes. 557 558 else: 559 coalesced.append(last) 560 561 last = start, end 562 563 if last: 564 coalesced.append(last) 565 566 # Invent a unique identifier. 567 568 utcnow = get_timestamp() 569 uid = "imip-agent-%s-%s" % (utcnow, get_address(self.user)) 570 571 # Create a calendar object and store it as a request. 572 573 record = [] 574 rwrite = record.append 575 576 # Define a single occurrence if only one coalesced slot exists. 577 578 start, end = coalesced[0] 579 start_value, start_attr = get_datetime_item(start, tzid) 580 end_value, end_attr = get_datetime_item(end, tzid) 581 582 rwrite(("UID", {}, uid)) 583 rwrite(("SUMMARY", {}, "New event at %s" % utcnow)) 584 rwrite(("DTSTAMP", {}, utcnow)) 585 rwrite(("DTSTART", start_attr, start_value)) 586 rwrite(("DTEND", end_attr, end_value)) 587 rwrite(("ORGANIZER", {}, self.user)) 588 589 participants = uri_values(filter(None, participants)) 590 591 for participant in participants: 592 rwrite(("ATTENDEE", {"RSVP" : "TRUE", "PARTSTAT" : "NEEDS-ACTION"}, participant)) 593 594 if self.user not in participants: 595 rwrite(("ATTENDEE", {"PARTSTAT" : "ACCEPTED"}, self.user)) 596 597 # Define additional occurrences if many slots are defined. 598 599 rdates = [] 600 601 for start, end in coalesced[1:]: 602 start_value, start_attr = get_datetime_item(start, tzid) 603 end_value, end_attr = get_datetime_item(end, tzid) 604 rdates.append("%s/%s" % (start_value, end_value)) 605 606 if rdates: 607 rwrite(("RDATE", {"VALUE" : "PERIOD", "TZID" : tzid}, rdates)) 608 609 node = ("VEVENT", {}, record) 610 611 self.store.set_event(self.user, uid, None, node=node) 612 self.store.queue_request(self.user, uid) 613 614 # Redirect to the object (or the first of the objects), where instead of 615 # attendee controls, there will be organiser controls. 616 617 self.redirect(self.link_to(uid)) 618 619 def handle_request(self, uid, recurrenceid, obj): 620 621 """ 622 Handle actions involving the given 'uid', 'recurrenceid', and 'obj' as 623 the object's representation, returning an error if one occurred, or None 624 if the request was successfully handled. 625 """ 626 627 # Handle a submitted form. 628 629 args = self.env.get_args() 630 631 # Get the possible actions. 632 633 reply = args.has_key("reply") 634 discard = args.has_key("discard") 635 invite = args.has_key("invite") 636 cancel = args.has_key("cancel") 637 save = args.has_key("save") 638 639 have_action = reply or discard or invite or cancel or save 640 641 if not have_action: 642 return ["action"] 643 644 # Update the object. 645 646 if args.has_key("summary"): 647 obj["SUMMARY"] = [(args["summary"][0], {})] 648 649 attendees = uri_dict(obj.get_value_map("ATTENDEE")) 650 651 if args.has_key("partstat"): 652 if attendees.has_key(self.user): 653 attendees[self.user]["PARTSTAT"] = args["partstat"][0] 654 if attendees[self.user].has_key("RSVP"): 655 del attendees[self.user]["RSVP"] 656 657 is_organiser = get_uri(obj.get_value("ORGANIZER")) == self.user 658 659 # Obtain the user's timezone and process datetime values. 660 661 update = False 662 663 if is_organiser: 664 dtend_enabled = args.get("dtend-control", [None])[0] == "enable" 665 dttimes_enabled = args.get("dttimes-control", [None])[0] == "enable" 666 667 t = self.handle_date_controls("dtstart", dttimes_enabled) 668 if t: 669 dtstart, attr = t 670 update = self.set_datetime_in_object(dtstart, attr.get("TZID"), "DTSTART", obj) or update 671 else: 672 return ["dtstart"] 673 674 # Handle specified end datetimes. 675 676 if dtend_enabled: 677 t = self.handle_date_controls("dtend", dttimes_enabled) 678 if t: 679 dtend, attr = t 680 681 # Convert end dates to iCalendar "next day" dates. 682 683 if not isinstance(dtend, datetime): 684 dtend += timedelta(1) 685 update = self.set_datetime_in_object(dtend, attr.get("TZID"), "DTEND", obj) or update 686 else: 687 return ["dtend"] 688 689 # Otherwise, treat the end date as the start date. Datetimes are 690 # handled by making the event occupy the rest of the day. 691 692 else: 693 dtend = dtstart + timedelta(1) 694 if isinstance(dtstart, datetime): 695 dtend = get_start_of_day(dtend, attr["TZID"]) 696 update = self.set_datetime_in_object(dtend, attr.get("TZID"), "DTEND", obj) or update 697 698 if dtstart >= dtend: 699 return ["dtstart", "dtend"] 700 701 # Obtain any participants to be added or removed. 702 703 removed = args.get("remove") 704 added = args.get("added") 705 706 # Process any action. 707 708 handled = True 709 710 if reply or invite or cancel: 711 712 handler = ManagerHandler(obj, self.user, self.messenger) 713 714 # Process the object and remove it from the list of requests. 715 716 if reply and handler.process_received_request(update) or \ 717 is_organiser and (invite or cancel) and \ 718 handler.process_created_request(invite and "REQUEST" or "CANCEL", update, removed, added): 719 720 self.remove_request(uid, recurrenceid) 721 722 # Save single user events. 723 724 elif save: 725 to_cancel = self.update_attendees(obj, added, removed) 726 self.store.set_event(self.user, uid, recurrenceid, node=obj.to_node()) 727 self.update_freebusy(uid, recurrenceid, obj) 728 self.remove_request(uid, recurrenceid) 729 730 # Remove the request and the object. 731 732 elif discard: 733 self.remove_from_freebusy(uid, recurrenceid) 734 self.remove_event(uid, recurrenceid) 735 self.remove_request(uid, recurrenceid) 736 737 else: 738 handled = False 739 740 # Upon handling an action, redirect to the main page. 741 742 if handled: 743 self.redirect(self.env.get_path()) 744 745 return None 746 747 def handle_date_controls(self, name, with_time=True): 748 749 """ 750 Handle date control information for fields starting with 'name', 751 returning a (datetime, attr) tuple or None if the fields cannot be used 752 to construct a datetime object. 753 """ 754 755 args = self.env.get_args() 756 757 if args.has_key("%s-date" % name): 758 date = args["%s-date" % name][0] 759 760 if with_time: 761 hour = args.get("%s-hour" % name, [None])[0] 762 minute = args.get("%s-minute" % name, [None])[0] 763 second = args.get("%s-second" % name, [None])[0] 764 tzid = args.get("%s-tzid" % name, [self.get_tzid()])[0] 765 766 time = (hour or minute or second) and "T%s%s%s" % (hour, minute, second) or "" 767 value = "%s%s" % (date, time) 768 attr = {"TZID" : tzid, "VALUE" : "DATE-TIME"} 769 dt = get_datetime(value, attr) 770 else: 771 attr = {"VALUE" : "DATE"} 772 dt = get_datetime(date) 773 774 if dt: 775 return dt, attr 776 777 return None 778 779 def set_datetime_in_object(self, dt, tzid, property, obj): 780 781 """ 782 Set 'dt' and 'tzid' for the given 'property' in 'obj', returning whether 783 an update has occurred. 784 """ 785 786 if dt: 787 old_value = obj.get_value(property) 788 obj[property] = [get_datetime_item(dt, tzid)] 789 return format_datetime(dt) != old_value 790 791 return False 792 793 # Page fragment methods. 794 795 def show_request_controls(self, obj): 796 797 "Show form controls for a request concerning 'obj'." 798 799 page = self.page 800 args = self.env.get_args() 801 802 is_organiser = get_uri(obj.get_value("ORGANIZER")) == self.user 803 804 attendees = uri_values((obj.get_values("ATTENDEE") or []) + args.get("attendee", [])) 805 is_attendee = self.user in attendees 806 807 is_request = (obj.get_value("UID"), obj.get_value("RECURRENCE-ID")) in self._get_requests() 808 809 have_other_attendees = len(attendees) > (is_attendee and 1 or 0) 810 811 # Show appropriate options depending on the role of the user. 812 813 if is_attendee and not is_organiser: 814 page.p("An action is required for this request:") 815 816 page.p() 817 page.input(name="reply", type="submit", value="Reply") 818 page.add(" ") 819 page.input(name="discard", type="submit", value="Discard") 820 page.p.close() 821 822 if is_organiser: 823 page.p("As organiser, you can perform the following:") 824 825 if have_other_attendees: 826 page.p() 827 page.input(name="invite", type="submit", value="Invite") 828 page.add(" ") 829 if is_request: 830 page.input(name="discard", type="submit", value="Discard") 831 else: 832 page.input(name="cancel", type="submit", value="Cancel") 833 page.p.close() 834 else: 835 page.p() 836 page.input(name="save", type="submit", value="Save") 837 page.add(" ") 838 page.input(name="discard", type="submit", value="Discard") 839 page.p.close() 840 841 property_items = [ 842 ("SUMMARY", "Summary"), 843 ("DTSTART", "Start"), 844 ("DTEND", "End"), 845 ("ORGANIZER", "Organiser"), 846 ("ATTENDEE", "Attendee"), 847 ] 848 849 partstat_items = [ 850 ("NEEDS-ACTION", "Not confirmed"), 851 ("ACCEPTED", "Attending"), 852 ("TENTATIVE", "Tentatively attending"), 853 ("DECLINED", "Not attending"), 854 ("DELEGATED", "Delegated"), 855 (None, "Not indicated"), 856 ] 857 858 def show_object_on_page(self, uid, obj, error=None): 859 860 """ 861 Show the calendar object with the given 'uid' and representation 'obj' 862 on the current page. If 'error' is given, show a suitable message. 863 """ 864 865 page = self.page 866 page.form(method="POST") 867 868 args = self.env.get_args() 869 870 # Obtain the user's timezone. 871 872 tzid = self.get_tzid() 873 874 # Obtain basic event information, showing any necessary editing controls. 875 876 is_organiser = get_uri(obj.get_value("ORGANIZER")) == self.user 877 878 if is_organiser: 879 (dtstart, dtstart_attr), (dtend, dtend_attr) = self.show_object_organiser_controls(obj) 880 new_attendees, new_attendee = self.handle_new_attendees(obj) 881 else: 882 (dtstart, dtstart_attr), (dtend, dtend_attr) = self.get_event_period(obj) 883 new_attendees = [] 884 new_attendee = "" 885 886 # Provide a summary of the object. 887 888 page.table(class_="object", cellspacing=5, cellpadding=5) 889 page.thead() 890 page.tr() 891 page.th("Event", class_="mainheading", colspan=2) 892 page.tr.close() 893 page.thead.close() 894 page.tbody() 895 896 for name, label in self.property_items: 897 page.tr() 898 899 # Handle datetimes specially. 900 901 if name in ["DTSTART", "DTEND"]: 902 field = name.lower() 903 904 page.th(label, class_="objectheading %s%s" % (field, error and field in error and " error" or "")) 905 906 # Obtain the datetime. 907 908 if name == "DTSTART": 909 dt, attr, event_tzid = dtstart, dtstart_attr, dtstart_attr.get("TZID", tzid) 910 911 # Where no end datetime exists, use the start datetime as the 912 # basis of any potential datetime specified if dt-control is 913 # set. 914 915 else: 916 dt, attr, event_tzid = dtend or dtstart, dtend_attr or dtstart_attr, (dtend_attr or dtstart_attr).get("TZID", tzid) 917 918 # Show controls for editing as organiser. 919 920 if is_organiser: 921 value = format_datetime(dt) 922 923 page.td(class_="objectvalue %s" % field) 924 if name == "DTEND": 925 page.div(class_="dt disabled") 926 page.label("Specify end date", for_="dtend-enable", class_="enable") 927 page.div.close() 928 929 page.div(class_="dt enabled") 930 self._show_date_controls(field, value, attr, tzid) 931 if name == "DTSTART": 932 page.br() 933 page.label("Specify times", for_="dttimes-enable", class_="time disabled enable") 934 page.label("Specify dates only", for_="dttimes-disable", class_="time enabled disable") 935 elif name == "DTEND": 936 page.br() 937 page.label("End on same day", for_="dtend-disable", class_="disable") 938 page.div.close() 939 940 page.td.close() 941 942 # Show a label as attendee. 943 944 else: 945 page.td(self.format_datetime(dt, "full")) 946 947 page.tr.close() 948 949 # Handle the summary specially. 950 951 elif name == "SUMMARY": 952 value = args.get("summary", [obj.get_value(name)])[0] 953 954 page.th(label, class_="objectheading") 955 page.td() 956 if is_organiser: 957 page.input(name="summary", type="text", value=value, size=80) 958 else: 959 page.add(value) 960 page.td.close() 961 page.tr.close() 962 963 # Handle potentially many values. 964 965 else: 966 items = obj.get_items(name) or [] 967 rowspan = len(items) 968 969 if name == "ATTENDEE": 970 rowspan += len(new_attendees) + 1 971 elif not items: 972 continue 973 974 page.th(label, class_="objectheading", rowspan=rowspan) 975 976 first = True 977 978 for i, (value, attr) in enumerate(items): 979 if not first: 980 page.tr() 981 else: 982 first = False 983 984 if name == "ATTENDEE": 985 value = get_uri(value) 986 987 page.td(class_="objectvalue") 988 page.add(value) 989 page.add(" ") 990 991 partstat = attr.get("PARTSTAT") 992 if value == self.user: 993 self._show_menu("partstat", partstat, self.partstat_items, "partstat") 994 else: 995 page.span(dict(self.partstat_items).get(partstat, ""), class_="partstat") 996 997 if is_organiser: 998 if value in args.get("remove", []): 999 page.input(name="remove", type="checkbox", value=value, id="remove-%d" % i, class_="remove", checked="checked") 1000 else: 1001 page.input(name="remove", type="checkbox", value=value, id="remove-%d" % i, class_="remove") 1002 page.label("Remove", for_="remove-%d" % i, class_="remove") 1003 page.label("Uninvited", for_="remove-%d" % i, class_="removed") 1004 1005 else: 1006 page.td(class_="objectvalue") 1007 page.add(value) 1008 1009 page.td.close() 1010 page.tr.close() 1011 1012 # Allow more attendees to be specified. 1013 1014 if is_organiser and name == "ATTENDEE": 1015 for i, attendee in enumerate(new_attendees): 1016 if not first: 1017 page.tr() 1018 else: 1019 first = False 1020 1021 page.td() 1022 page.input(name="added", type="value", value=attendee) 1023 page.input(name="removenew", type="submit", value=attendee, id="removenew-%d" % i, class_="remove") 1024 page.label("Remove", for_="removenew-%d" % i, class_="remove") 1025 page.td.close() 1026 page.tr.close() 1027 1028 if not first: 1029 page.tr() 1030 1031 page.td() 1032 page.input(name="attendee", type="value", value=new_attendee) 1033 page.input(name="add", type="submit", value="add", id="add-%d" % i, class_="add") 1034 page.label("Add", for_="add-%d" % i, class_="add") 1035 page.td.close() 1036 page.tr.close() 1037 1038 page.tbody.close() 1039 page.table.close() 1040 1041 self.show_recurrences(obj) 1042 self.show_conflicting_events(uid, obj) 1043 self.show_request_controls(obj) 1044 1045 page.form.close() 1046 1047 def get_event_period(self, obj): 1048 1049 """ 1050 Return (dtstart, dtstart attributes), (dtend, dtend attributes) for 1051 'obj'. 1052 """ 1053 1054 dtstart, dtstart_attr = obj.get_datetime_item("DTSTART") 1055 if obj.has_key("DTEND"): 1056 dtend, dtend_attr = obj.get_datetime_item("DTEND") 1057 elif obj.has_key("DURATION"): 1058 duration = obj.get_duration("DURATION") 1059 dtend = dtstart + duration 1060 dtend_attr = dtstart_attr 1061 else: 1062 dtend, dtend_attr = dtstart, dtstart_attr 1063 return (dtstart, dtstart_attr), (dtend, dtend_attr) 1064 1065 def handle_new_attendees(self, obj): 1066 1067 "Add or remove new attendees. This does not affect the stored object." 1068 1069 args = self.env.get_args() 1070 1071 existing_attendees = uri_values(obj.get_values("ATTENDEE") or []) 1072 new_attendees = args.get("added", []) 1073 new_attendee = args.get("attendee", [""])[0] 1074 1075 if args.has_key("add"): 1076 if new_attendee.strip(): 1077 new_attendee = get_uri(new_attendee.strip()) 1078 if new_attendee not in new_attendees and new_attendee not in existing_attendees: 1079 new_attendees.append(new_attendee) 1080 new_attendee = "" 1081 1082 if args.has_key("removenew"): 1083 removed_attendee = args["removenew"][0] 1084 if removed_attendee in new_attendees: 1085 new_attendees.remove(removed_attendee) 1086 1087 return new_attendees, new_attendee 1088 1089 def show_object_organiser_controls(self, obj): 1090 1091 "Provide controls to change the displayed object 'obj'." 1092 1093 page = self.page 1094 args = self.env.get_args() 1095 1096 # Configure the start and end datetimes. 1097 1098 dtend_control = args.get("dtend-control", [None])[0] 1099 dttimes_control = args.get("dttimes-control", [None])[0] 1100 with_time = dttimes_control == "enable" 1101 1102 # Start with the object's original details, overriding them with request 1103 # information. 1104 1105 (dtstart, dtstart_attr), (dtend, dtend_attr) = self.get_event_period(obj) 1106 1107 t = self.handle_date_controls("dtstart", with_time) 1108 if t: 1109 dtstart, dtstart_attr = t 1110 1111 if dtend_control == "enable": 1112 t = self.handle_date_controls("dtend", with_time) 1113 if t: 1114 dtend, dtend_attr = t 1115 else: 1116 dtend, dtend_attr = None, {} 1117 elif dtend_control == "disable": 1118 dtend, dtend_attr = None, {} 1119 1120 # Change end dates to refer to the actual dates, not the iCalendar 1121 # "next day" dates. 1122 1123 if dtend and not isinstance(dtend, datetime): 1124 dtend -= timedelta(1) 1125 1126 # Show the end datetime controls if already active or if an object needs 1127 # them. 1128 1129 dtend_enabled = dtend_control == "enable" or isinstance(dtend, datetime) or dtstart != dtend 1130 dttimes_enabled = dttimes_control == "enable" or isinstance(dtstart, datetime) or isinstance(dtend, datetime) 1131 1132 if dtend_enabled: 1133 page.input(name="dtend-control", type="radio", value="enable", id="dtend-enable", checked="checked") 1134 page.input(name="dtend-control", type="radio", value="disable", id="dtend-disable") 1135 else: 1136 page.input(name="dtend-control", type="radio", value="enable", id="dtend-enable") 1137 page.input(name="dtend-control", type="radio", value="disable", id="dtend-disable", checked="checked") 1138 1139 if dttimes_enabled: 1140 page.input(name="dttimes-control", type="radio", value="enable", id="dttimes-enable", checked="checked") 1141 page.input(name="dttimes-control", type="radio", value="disable", id="dttimes-disable") 1142 else: 1143 page.input(name="dttimes-control", type="radio", value="enable", id="dttimes-enable") 1144 page.input(name="dttimes-control", type="radio", value="disable", id="dttimes-disable", checked="checked") 1145 1146 return (dtstart, dtstart_attr), (dtend, dtend_attr) 1147 1148 def show_recurrences(self, obj): 1149 1150 "Show recurrences for the object having the given representation 'obj'." 1151 1152 page = self.page 1153 1154 # Obtain any parent object if this object is a specific recurrence. 1155 1156 uid = obj.get_value("UID") 1157 recurrenceid = format_datetime(obj.get_utc_datetime("RECURRENCE-ID")) 1158 1159 if recurrenceid: 1160 obj = self._get_object(uid) 1161 if not obj: 1162 return 1163 1164 page.p("This event modifies a recurring event.") 1165 1166 # Obtain the periods associated with the event in the user's time zone. 1167 1168 periods = obj.get_periods(self.get_tzid(), self.get_window_end()) 1169 recurrenceids = self._get_recurrences(uid) 1170 1171 if len(periods) == 1: 1172 return 1173 1174 page.p("This event occurs on the following occasions within the next %d days:" % self.get_window_size()) 1175 1176 page.table(cellspacing=5, cellpadding=5, class_="recurrences") 1177 page.thead() 1178 page.tr() 1179 page.th("Start") 1180 page.th("End") 1181 page.tr.close() 1182 page.thead.close() 1183 page.tbody() 1184 1185 for start, end in periods: 1186 start_utc = format_datetime(to_timezone(start, "UTC")) 1187 css = " ".join([ 1188 recurrenceids and start_utc in recurrenceids and "replaced" or "", 1189 recurrenceid and start_utc == recurrenceid and "affected" or "" 1190 ]) 1191 1192 page.tr() 1193 page.td(self.format_datetime(start, "long"), class_=css) 1194 page.td(self.format_datetime(end, "long"), class_=css) 1195 page.tr.close() 1196 1197 page.tbody.close() 1198 page.table.close() 1199 1200 def show_conflicting_events(self, uid, obj): 1201 1202 """ 1203 Show conflicting events for the object having the given 'uid' and 1204 representation 'obj'. 1205 """ 1206 1207 page = self.page 1208 1209 # Obtain the user's timezone. 1210 1211 tzid = self.get_tzid() 1212 periods = obj.get_periods_for_freebusy(self.get_tzid(), self.get_window_end()) 1213 1214 # Indicate whether there are conflicting events. 1215 1216 freebusy = self.store.get_freebusy(self.user) 1217 1218 if freebusy: 1219 1220 # Obtain any time zone details from the suggested event. 1221 1222 _dtstart, attr = obj.get_item("DTSTART") 1223 tzid = attr.get("TZID", tzid) 1224 1225 # Show any conflicts. 1226 1227 conflicts = [t for t in have_conflict(freebusy, periods, True) if t[2] != uid] 1228 1229 if conflicts: 1230 page.p("This event conflicts with others:") 1231 1232 page.table(cellspacing=5, cellpadding=5, class_="conflicts") 1233 page.thead() 1234 page.tr() 1235 page.th("Event") 1236 page.th("Start") 1237 page.th("End") 1238 page.tr.close() 1239 page.thead.close() 1240 page.tbody() 1241 1242 for t in conflicts: 1243 start, end, found_uid, transp, found_recurrenceid, summary = t[:6] 1244 1245 # Provide details of any conflicting event. 1246 1247 start = self.format_datetime(to_timezone(get_datetime(start), tzid), "long") 1248 end = self.format_datetime(to_timezone(get_datetime(end), tzid), "long") 1249 1250 page.tr() 1251 1252 # Show the event summary for the conflicting event. 1253 1254 page.td() 1255 page.a(summary, href=self.link_to(found_uid)) 1256 page.td.close() 1257 1258 page.td(start) 1259 page.td(end) 1260 1261 page.tr.close() 1262 1263 page.tbody.close() 1264 page.table.close() 1265 1266 def show_requests_on_page(self): 1267 1268 "Show requests for the current user." 1269 1270 page = self.page 1271 1272 # NOTE: This list could be more informative, but it is envisaged that 1273 # NOTE: the requests would be visited directly anyway. 1274 1275 requests = self._get_requests() 1276 1277 page.div(id="pending-requests") 1278 1279 if requests: 1280 page.p("Pending requests:") 1281 1282 page.ul() 1283 1284 for uid, recurrenceid in requests: 1285 obj = self._get_object(uid, recurrenceid) 1286 if obj: 1287 page.li() 1288 page.a(obj.get_value("SUMMARY"), href="#request-%s-%s" % (uid, recurrenceid or "")) 1289 page.li.close() 1290 1291 page.ul.close() 1292 1293 else: 1294 page.p("There are no pending requests.") 1295 1296 page.div.close() 1297 1298 def show_participants_on_page(self): 1299 1300 "Show participants for scheduling purposes." 1301 1302 page = self.page 1303 args = self.env.get_args() 1304 participants = args.get("participants", []) 1305 1306 try: 1307 for name, value in args.items(): 1308 if name.startswith("remove-participant-"): 1309 i = int(name[len("remove-participant-"):]) 1310 del participants[i] 1311 break 1312 except ValueError: 1313 pass 1314 1315 # Trim empty participants. 1316 1317 while participants and not participants[-1].strip(): 1318 participants.pop() 1319 1320 # Show any specified participants together with controls to remove and 1321 # add participants. 1322 1323 page.div(id="participants") 1324 1325 page.p("Participants for scheduling:") 1326 1327 for i, participant in enumerate(participants): 1328 page.p() 1329 page.input(name="participants", type="text", value=participant) 1330 page.input(name="remove-participant-%d" % i, type="submit", value="Remove") 1331 page.p.close() 1332 1333 page.p() 1334 page.input(name="participants", type="text") 1335 page.input(name="add-participant", type="submit", value="Add") 1336 page.p.close() 1337 1338 page.div.close() 1339 1340 return participants 1341 1342 # Full page output methods. 1343 1344 def show_object(self, path_info): 1345 1346 "Show an object request using the given 'path_info' for the current user." 1347 1348 uid, recurrenceid = self._get_identifiers(path_info) 1349 obj = self._get_object(uid, recurrenceid) 1350 1351 if not obj: 1352 return False 1353 1354 error = self.handle_request(uid, recurrenceid, obj) 1355 1356 if not error: 1357 return True 1358 1359 self.new_page(title="Event") 1360 self.show_object_on_page(uid, obj, error) 1361 1362 return True 1363 1364 def show_calendar(self): 1365 1366 "Show the calendar for the current user." 1367 1368 handled = self.handle_newevent() 1369 1370 self.new_page(title="Calendar") 1371 page = self.page 1372 1373 # Form controls are used in various places on the calendar page. 1374 1375 page.form(method="POST") 1376 1377 self.show_requests_on_page() 1378 participants = self.show_participants_on_page() 1379 1380 # Show a button for scheduling a new event. 1381 1382 page.p(class_="controls") 1383 page.input(name="newevent", type="submit", value="New event", id="newevent", accesskey="N") 1384 page.p.close() 1385 1386 # Show controls for hiding empty days and busy slots. 1387 # The positioning of the control, paragraph and table are important here. 1388 1389 page.input(name="showdays", type="checkbox", value="show", id="showdays", accesskey="D") 1390 page.input(name="hidebusy", type="checkbox", value="hide", id="hidebusy", accesskey="B") 1391 1392 page.p(class_="controls") 1393 page.label("Hide busy time periods", for_="hidebusy", class_="hidebusy enable") 1394 page.label("Show busy time periods", for_="hidebusy", class_="hidebusy disable") 1395 page.label("Show empty days", for_="showdays", class_="showdays disable") 1396 page.label("Hide empty days", for_="showdays", class_="showdays enable") 1397 page.input(name="reset", type="submit", value="Clear selections", id="reset") 1398 page.label("Clear selections", for_="reset", class_="reset") 1399 page.p.close() 1400 1401 freebusy = self.store.get_freebusy(self.user) 1402 1403 if not freebusy: 1404 page.p("No events scheduled.") 1405 return 1406 1407 # Obtain the user's timezone. 1408 1409 tzid = self.get_tzid() 1410 1411 # Day view: start at the earliest known day and produce days until the 1412 # latest known day, perhaps with expandable sections of empty days. 1413 1414 # Month view: start at the earliest known month and produce months until 1415 # the latest known month, perhaps with expandable sections of empty 1416 # months. 1417 1418 # Details of users to invite to new events could be superimposed on the 1419 # calendar. 1420 1421 # Requests are listed and linked to their tentative positions in the 1422 # calendar. Other participants are also shown. 1423 1424 request_summary = self._get_request_summary() 1425 1426 period_groups = [request_summary, freebusy] 1427 period_group_types = ["request", "freebusy"] 1428 period_group_sources = ["Pending requests", "Your schedule"] 1429 1430 for i, participant in enumerate(participants): 1431 period_groups.append(self.store.get_freebusy_for_other(self.user, get_uri(participant))) 1432 period_group_types.append("freebusy-part%d" % i) 1433 period_group_sources.append(participant) 1434 1435 groups = [] 1436 group_columns = [] 1437 group_types = period_group_types 1438 group_sources = period_group_sources 1439 all_points = set() 1440 1441 # Obtain time point information for each group of periods. 1442 1443 for periods in period_groups: 1444 periods = convert_periods(periods, tzid) 1445 1446 # Get the time scale with start and end points. 1447 1448 scale = get_scale(periods) 1449 1450 # Get the time slots for the periods. 1451 1452 slots = get_slots(scale) 1453 1454 # Add start of day time points for multi-day periods. 1455 1456 add_day_start_points(slots, tzid) 1457 1458 # Record the slots and all time points employed. 1459 1460 groups.append(slots) 1461 all_points.update([point for point, active in slots]) 1462 1463 # Partition the groups into days. 1464 1465 days = {} 1466 partitioned_groups = [] 1467 partitioned_group_types = [] 1468 partitioned_group_sources = [] 1469 1470 for slots, group_type, group_source in zip(groups, group_types, group_sources): 1471 1472 # Propagate time points to all groups of time slots. 1473 1474 add_slots(slots, all_points) 1475 1476 # Count the number of columns employed by the group. 1477 1478 columns = 0 1479 1480 # Partition the time slots by day. 1481 1482 partitioned = {} 1483 1484 for day, day_slots in partition_by_day(slots).items(): 1485 1486 # Construct a list of time intervals within the day. 1487 1488 intervals = [] 1489 last = None 1490 1491 for point, active in day_slots: 1492 columns = max(columns, len(active)) 1493 if last: 1494 intervals.append((last, point)) 1495 last = point 1496 1497 if last: 1498 intervals.append((last, None)) 1499 1500 if not days.has_key(day): 1501 days[day] = set() 1502 1503 # Convert each partition to a mapping from points to active 1504 # periods. 1505 1506 partitioned[day] = dict(day_slots) 1507 1508 # Record the divisions or intervals within each day. 1509 1510 days[day].update(intervals) 1511 1512 # Only include the requests column if it provides objects. 1513 1514 if group_type != "request" or columns: 1515 group_columns.append(columns) 1516 partitioned_groups.append(partitioned) 1517 partitioned_group_types.append(group_type) 1518 partitioned_group_sources.append(group_source) 1519 1520 # Add empty days. 1521 1522 add_empty_days(days, tzid) 1523 1524 # Show the controls permitting day selection. 1525 1526 self.show_calendar_day_controls(days) 1527 1528 # Show the calendar itself. 1529 1530 page.table(cellspacing=5, cellpadding=5, class_="calendar") 1531 self.show_calendar_participant_headings(partitioned_group_types, partitioned_group_sources, group_columns) 1532 self.show_calendar_days(days, partitioned_groups, partitioned_group_types, group_columns) 1533 page.table.close() 1534 1535 # End the form region. 1536 1537 page.form.close() 1538 1539 # More page fragment methods. 1540 1541 def show_calendar_day_controls(self, days): 1542 1543 "Show controls for the given 'days' in the calendar." 1544 1545 page = self.page 1546 slots = self.env.get_args().get("slot", []) 1547 1548 for day in days: 1549 value, identifier = self._day_value_and_identifier(day) 1550 self._slot_selector(value, identifier, slots) 1551 1552 # Generate a dynamic stylesheet to allow day selections to colour 1553 # specific days. 1554 # NOTE: The style details need to be coordinated with the static 1555 # NOTE: stylesheet. 1556 1557 page.style(type="text/css") 1558 1559 for day in days: 1560 daystr = format_datetime(day) 1561 page.add("""\ 1562 input.newevent.selector#day-%s-:checked ~ table label.day.day-%s, 1563 input.newevent.selector#day-%s-:checked ~ table label.timepoint.day-%s { 1564 background-color: #5f4; 1565 text-decoration: underline; 1566 } 1567 """ % (daystr, daystr, daystr, daystr)) 1568 1569 page.style.close() 1570 1571 def show_calendar_participant_headings(self, group_types, group_sources, group_columns): 1572 1573 """ 1574 Show headings for the participants and other scheduling contributors, 1575 defined by 'group_types', 'group_sources' and 'group_columns'. 1576 """ 1577 1578 page = self.page 1579 1580 page.colgroup(span=1, id="columns-timeslot") 1581 1582 for group_type, columns in zip(group_types, group_columns): 1583 page.colgroup(span=max(columns, 1), id="columns-%s" % group_type) 1584 1585 page.thead() 1586 page.tr() 1587 page.th("", class_="emptyheading") 1588 1589 for group_type, source, columns in zip(group_types, group_sources, group_columns): 1590 page.th(source, 1591 class_=(group_type == "request" and "requestheading" or "participantheading"), 1592 colspan=max(columns, 1)) 1593 1594 page.tr.close() 1595 page.thead.close() 1596 1597 def show_calendar_days(self, days, partitioned_groups, partitioned_group_types, group_columns): 1598 1599 """ 1600 Show calendar days, defined by a collection of 'days', the contributing 1601 period information as 'partitioned_groups' (partitioned by day), the 1602 'partitioned_group_types' indicating the kind of contribution involved, 1603 and the 'group_columns' defining the number of columns in each group. 1604 """ 1605 1606 page = self.page 1607 1608 # Determine the number of columns required. Where participants provide 1609 # no columns for events, one still needs to be provided for the 1610 # participant itself. 1611 1612 all_columns = sum([max(columns, 1) for columns in group_columns]) 1613 1614 # Determine the days providing time slots. 1615 1616 all_days = days.items() 1617 all_days.sort() 1618 1619 # Produce a heading and time points for each day. 1620 1621 for day, intervals in all_days: 1622 groups_for_day = [partitioned.get(day) for partitioned in partitioned_groups] 1623 is_empty = True 1624 1625 for slots in groups_for_day: 1626 if not slots: 1627 continue 1628 1629 for active in slots.values(): 1630 if active: 1631 is_empty = False 1632 break 1633 1634 page.thead(class_="separator%s" % (is_empty and " empty" or "")) 1635 page.tr() 1636 page.th(class_="dayheading container", colspan=all_columns+1) 1637 self._day_heading(day) 1638 page.th.close() 1639 page.tr.close() 1640 page.thead.close() 1641 1642 page.tbody(class_="points%s" % (is_empty and " empty" or "")) 1643 self.show_calendar_points(intervals, groups_for_day, partitioned_group_types, group_columns) 1644 page.tbody.close() 1645 1646 def show_calendar_points(self, intervals, groups, group_types, group_columns): 1647 1648 """ 1649 Show the time 'intervals' along with period information from the given 1650 'groups', having the indicated 'group_types', each with the number of 1651 columns given by 'group_columns'. 1652 """ 1653 1654 page = self.page 1655 1656 # Obtain the user's timezone. 1657 1658 tzid = self.get_tzid() 1659 1660 # Produce a row for each interval. 1661 1662 intervals = list(intervals) 1663 intervals.sort() 1664 1665 for point, endpoint in intervals: 1666 continuation = point == get_start_of_day(point, tzid) 1667 1668 # Some rows contain no period details and are marked as such. 1669 1670 have_active = reduce(lambda x, y: x or y, [slots and slots.get(point) for slots in groups], None) 1671 1672 css = " ".join([ 1673 "slot", 1674 have_active and "busy" or "empty", 1675 continuation and "daystart" or "" 1676 ]) 1677 1678 page.tr(class_=css) 1679 page.th(class_="timeslot") 1680 self._time_point(point, endpoint) 1681 page.th.close() 1682 1683 # Obtain slots for the time point from each group. 1684 1685 for columns, slots, group_type in zip(group_columns, groups, group_types): 1686 active = slots and slots.get(point) 1687 1688 # Where no periods exist for the given time interval, generate 1689 # an empty cell. Where a participant provides no periods at all, 1690 # the colspan is adjusted to be 1, not 0. 1691 1692 if not active: 1693 page.td(class_="empty container", colspan=max(columns, 1)) 1694 self._empty_slot(point, endpoint) 1695 page.td.close() 1696 continue 1697 1698 slots = slots.items() 1699 slots.sort() 1700 spans = get_spans(slots) 1701 1702 empty = 0 1703 1704 # Show a column for each active period. 1705 1706 for t in active: 1707 if t and len(t) >= 2: 1708 1709 # Flush empty slots preceding this one. 1710 1711 if empty: 1712 page.td(class_="empty container", colspan=empty) 1713 self._empty_slot(point, endpoint) 1714 page.td.close() 1715 empty = 0 1716 1717 start, end, uid, recurrenceid, summary, organiser, key = get_freebusy_details(t) 1718 span = spans[key] 1719 1720 # Produce a table cell only at the start of the period 1721 # or when continued at the start of a day. 1722 1723 if point == start or continuation: 1724 1725 has_continued = continuation and point != start 1726 will_continue = not ends_on_same_day(point, end, tzid) 1727 is_organiser = organiser == self.user 1728 1729 css = " ".join([ 1730 "event", 1731 has_continued and "continued" or "", 1732 will_continue and "continues" or "", 1733 is_organiser and "organising" or "attending" 1734 ]) 1735 1736 # Only anchor the first cell of events. 1737 # NOTE: Need to only anchor the first period for a 1738 # NOTE: recurring event. 1739 1740 html_id = "%s-%s-%s" % (group_type, uid, recurrenceid or "") 1741 1742 if point == start and html_id not in self.html_ids: 1743 page.td(class_=css, rowspan=span, id=html_id) 1744 self.html_ids.add(html_id) 1745 else: 1746 page.td(class_=css, rowspan=span) 1747 1748 # Only link to events if they are not being 1749 # updated by requests. 1750 1751 if not summary or (uid, recurrenceid) in self._get_requests() and group_type != "request": 1752 page.span(summary or "(Participant is busy)") 1753 else: 1754 page.a(summary, href=self.link_to(uid, recurrenceid)) 1755 1756 page.td.close() 1757 else: 1758 empty += 1 1759 1760 # Pad with empty columns. 1761 1762 empty = columns - len(active) 1763 1764 if empty: 1765 page.td(class_="empty container", colspan=empty) 1766 self._empty_slot(point, endpoint) 1767 page.td.close() 1768 1769 page.tr.close() 1770 1771 def _day_heading(self, day): 1772 1773 """ 1774 Generate a heading for 'day' of the following form: 1775 1776 <label class="day day-20150203" for="day-20150203">Tuesday, 3 February 2015</label> 1777 """ 1778 1779 page = self.page 1780 daystr = format_datetime(day) 1781 value, identifier = self._day_value_and_identifier(day) 1782 page.label(self.format_date(day, "full"), class_="day day-%s" % daystr, for_=identifier) 1783 1784 def _time_point(self, point, endpoint): 1785 1786 """ 1787 Generate headings for the 'point' to 'endpoint' period of the following 1788 form: 1789 1790 <label class="timepoint day-20150203" for="slot-20150203T090000-20150203T100000">09:00:00 CET</label> 1791 <span class="endpoint">10:00:00 CET</span> 1792 """ 1793 1794 page = self.page 1795 tzid = self.get_tzid() 1796 daystr = format_datetime(point.date()) 1797 value, identifier = self._slot_value_and_identifier(point, endpoint) 1798 slots = self.env.get_args().get("slot", []) 1799 self._slot_selector(value, identifier, slots) 1800 page.label(self.format_time(point, "long"), class_="timepoint day-%s" % daystr, for_=identifier) 1801 page.span(self.format_time(endpoint or get_end_of_day(point, tzid), "long"), class_="endpoint") 1802 1803 def _slot_selector(self, value, identifier, slots): 1804 1805 """ 1806 Provide a timeslot control having the given 'value', employing the 1807 indicated HTML 'identifier', and using the given 'slots' collection 1808 to select any control whose 'value' is in this collection, unless the 1809 "reset" request parameter has been asserted. 1810 """ 1811 1812 reset = self.env.get_args().has_key("reset") 1813 page = self.page 1814 if not reset and value in slots: 1815 page.input(name="slot", type="checkbox", value=value, id=identifier, class_="newevent selector", checked="checked") 1816 else: 1817 page.input(name="slot", type="checkbox", value=value, id=identifier, class_="newevent selector") 1818 1819 def _empty_slot(self, point, endpoint): 1820 1821 "Show an empty slot label for the given 'point' and 'endpoint'." 1822 1823 page = self.page 1824 value, identifier = self._slot_value_and_identifier(point, endpoint) 1825 page.label("Select/deselect period", class_="newevent popup", for_=identifier) 1826 1827 def _day_value_and_identifier(self, day): 1828 1829 "Return a day value and HTML identifier for the given 'day'." 1830 1831 value = "%s-" % format_datetime(day) 1832 identifier = "day-%s" % value 1833 return value, identifier 1834 1835 def _slot_value_and_identifier(self, point, endpoint): 1836 1837 """ 1838 Return a slot value and HTML identifier for the given 'point' and 1839 'endpoint'. 1840 """ 1841 1842 value = "%s-%s" % (format_datetime(point), endpoint and format_datetime(endpoint) or "") 1843 identifier = "slot-%s" % value 1844 return value, identifier 1845 1846 def _show_menu(self, name, default, items, class_=""): 1847 1848 """ 1849 Show a select menu having the given 'name', set to the given 'default', 1850 providing the given (value, label) 'items', and employing the given CSS 1851 'class_' if specified. 1852 """ 1853 1854 page = self.page 1855 values = self.env.get_args().get(name, [default]) 1856 page.select(name=name, class_=class_) 1857 for v, label in items: 1858 if v is None: 1859 continue 1860 if v in values: 1861 page.option(label, value=v, selected="selected") 1862 else: 1863 page.option(label, value=v) 1864 page.select.close() 1865 1866 def _show_date_controls(self, name, default, attr, tzid): 1867 1868 """ 1869 Show date controls for a field with the given 'name' and 'default' value 1870 and 'attr', with the given 'tzid' being used if no other time regime 1871 information is provided. 1872 """ 1873 1874 page = self.page 1875 args = self.env.get_args() 1876 1877 event_tzid = attr.get("TZID", tzid) 1878 dt = get_datetime(default, attr) 1879 1880 # Show dates for up to one week around the current date. 1881 1882 base = get_date(dt) 1883 items = [] 1884 for i in range(-7, 8): 1885 d = base + timedelta(i) 1886 items.append((format_datetime(d), self.format_date(d, "full"))) 1887 1888 self._show_menu("%s-date" % name, format_datetime(base), items) 1889 1890 # Show time details. 1891 1892 dt_time = isinstance(dt, datetime) and dt or None 1893 hour = args.get("%s-hour" % name, "%02d" % (dt_time and dt_time.hour or 0)) 1894 minute = args.get("%s-minute" % name, "%02d" % (dt_time and dt_time.minute or 0)) 1895 second = args.get("%s-second" % name, "%02d" % (dt_time and dt_time.second or 0)) 1896 1897 page.span(class_="time enabled") 1898 page.input(name="%s-hour" % name, type="text", value=hour, maxlength=2, size=2) 1899 page.add(":") 1900 page.input(name="%s-minute" % name, type="text", value=minute, maxlength=2, size=2) 1901 page.add(":") 1902 page.input(name="%s-second" % name, type="text", value=second, maxlength=2, size=2) 1903 page.add(" ") 1904 self._show_timezone_menu("%s-tzid" % name, event_tzid) 1905 page.span.close() 1906 1907 def _show_timezone_menu(self, name, default): 1908 1909 """ 1910 Show timezone controls using a menu with the given 'name', set to the 1911 given 'default' unless a field of the given 'name' provides a value. 1912 """ 1913 1914 entries = [(tzid, tzid) for tzid in pytz.all_timezones] 1915 self._show_menu(name, default, entries) 1916 1917 # Incoming HTTP request direction. 1918 1919 def select_action(self): 1920 1921 "Select the desired action and show the result." 1922 1923 path_info = self.env.get_path_info().strip("/") 1924 1925 if not path_info: 1926 self.show_calendar() 1927 elif self.show_object(path_info): 1928 pass 1929 else: 1930 self.no_page() 1931 1932 def __call__(self): 1933 1934 "Interpret a request and show an appropriate response." 1935 1936 if not self.user: 1937 self.no_user() 1938 else: 1939 self.select_action() 1940 1941 # Write the headers and actual content. 1942 1943 print >>self.out, "Content-Type: text/html; charset=%s" % self.encoding 1944 print >>self.out 1945 self.out.write(unicode(self.page).encode(self.encoding)) 1946 1947 if __name__ == "__main__": 1948 Manager()() 1949 1950 # vim: tabstop=4 expandtab shiftwidth=4