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Diffstat (limited to 'libical/src/libical/icalrestriction.c.in')
-rw-r--r-- | libical/src/libical/icalrestriction.c.in | 447 |
1 files changed, 447 insertions, 0 deletions
diff --git a/libical/src/libical/icalrestriction.c.in b/libical/src/libical/icalrestriction.c.in new file mode 100644 index 0000000000..454442531f --- /dev/null +++ b/libical/src/libical/icalrestriction.c.in @@ -0,0 +1,447 @@ +/* -*- Mode: C -*- */ +/* ====================================================================== + File: icalrestriction.c + + (C) COPYRIGHT 2000, Eric Busboom, http://www.softwarestudio.org + ======================================================================*/ +/*#line 7 "icalrestriction.c.in"*/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include "icalrestriction.h" +#include "icalenums.h" +#include "icalerror.h" + +#include <assert.h> +#include <stdio.h> /* For snprintf */ + +#define TMP_BUF_SIZE 1024 + + +/* Define the structs for the restrictions. these data are filled out +in machine generated code below */ + +struct icalrestriction_property_record; + +typedef char* (*restriction_func)(struct icalrestriction_property_record* rec,icalcomponent* comp,icalproperty* prop); + + +typedef struct icalrestriction_property_record { + icalproperty_method method; + icalcomponent_kind component; + icalproperty_kind property; + icalrestriction_kind restriction; + restriction_func function; +} icalrestriction_property_record; + + +typedef struct icalrestriction_component_record { + icalproperty_method method; + icalcomponent_kind component; + icalcomponent_kind subcomponent; + icalrestriction_kind restriction; + restriction_func function; +} icalrestriction_component_record; + +icalrestriction_property_record* +icalrestriction_get_property_restriction(icalproperty_method method, + icalcomponent_kind component, + icalproperty_kind property); +icalrestriction_component_record* +icalrestriction_get_component_restriction(icalproperty_method method, + icalcomponent_kind component, + icalcomponent_kind subcomponent); + +icalrestriction_component_record icalrestriction_component_records[]; +icalrestriction_property_record icalrestriction_property_records[]; + +icalrestriction_property_record null_prop_record = {ICAL_METHOD_NONE,ICAL_NO_COMPONENT,ICAL_NO_PROPERTY,ICAL_RESTRICTION_UNKNOWN,0}; +icalrestriction_component_record null_comp_record = {ICAL_METHOD_NONE,ICAL_NO_COMPONENT,ICAL_NO_COMPONENT,ICAL_RESTRICTION_UNKNOWN,0}; + + +/* The each row gives the result of comparing a restriction against a + count. The columns in each row represent 0,1,2+. '-1' indicates + 'invalid, 'don't care' or 'needs more analysis' So, for + ICAL_RESTRICTION_ONE, if there is 1 of a property with that + restriction, it passes, but if there are 0 or 2+, it fails. */ + +char compare_map[ICAL_RESTRICTION_UNKNOWN+1][3] = { + { 1, 1, 1},/*ICAL_RESTRICTION_NONE*/ + { 1, 0, 0},/*ICAL_RESTRICTION_ZERO*/ + { 0, 1, 0},/*ICAL_RESTRICTION_ONE*/ + { 1, 1, 1},/*ICAL_RESTRICTION_ZEROPLUS*/ + { 0, 1, 1},/*ICAL_RESTRICTION_ONEPLUS*/ + { 1, 1, 0},/*ICAL_RESTRICTION_ZEROORONE*/ + { 1, 1, 0},/*ICAL_RESTRICTION_ONEEXCLUSIVE*/ + { 1, 1, 0},/*ICAL_RESTRICTION_ONEMUTUAL*/ + { 1, 1, 1} /*ICAL_RESTRICTION_UNKNOWN*/ +}; + +char restr_string_map[ICAL_RESTRICTION_UNKNOWN+1][60] = { + "unknown number",/*ICAL_RESTRICTION_NONE*/ + "0",/*ICAL_RESTRICTION_ZERO*/ + "1",/*ICAL_RESTRICTION_ONE*/ + "zero or more",/*ICAL_RESTRICTION_ZEROPLUS*/ + "one or more" ,/*ICAL_RESTRICTION_ONEPLUS*/ + "zero or one",/*ICAL_RESTRICTION_ZEROORONE*/ + "zero or one, exclusive with another property",/*ICAL_RESTRICTION_ONEEXCLUSIVE*/ + "zero or one, mutual with another property",/*ICAL_RESTRICTION_ONEMUTUAL*/ + "unknown number" /*ICAL_RESTRICTION_UNKNOWN*/ +}; + + +int +icalrestriction_compare(icalrestriction_kind restr, int count){ + + if ( restr < ICAL_RESTRICTION_NONE || restr > ICAL_RESTRICTION_UNKNOWN + || count < 0){ + return -1; + } + + if (count > 2) { + count = 2; + } + + return compare_map[restr][count]; + +} + +/* Special case routines */ + +char* icalrestriction_may_be_draft_final_canceled( + icalrestriction_property_record *rec, + icalcomponent* comp, + icalproperty* prop) +{ + + icalproperty_status stat = icalproperty_get_status(prop); + + if( !( stat == ICAL_STATUS_DRAFT || + stat == ICAL_STATUS_FINAL || + stat == ICAL_STATUS_CANCELLED )){ + + return "Failed iTIP restrictions for STATUS property. Value must be one of DRAFT, FINAL, or CANCELED"; + + } + + return 0; +} + +char* icalrestriction_may_be_comp_need_process( + icalrestriction_property_record *rec, + icalcomponent* comp, + icalproperty* prop) +{ + icalproperty_status stat = icalproperty_get_status(prop); + + if( !( stat == ICAL_STATUS_COMPLETED || + stat == ICAL_STATUS_NEEDSACTION || + stat == ICAL_STATUS_INPROCESS )){ + + return "Failed iTIP restrictions for STATUS property. Value must be one of COMPLETED, NEEDS-ACTION or IN-PROCESS"; + + } + + return 0; +} +char* icalrestriction_may_be_tent_conf(icalrestriction_property_record *rec, + icalcomponent* comp, + icalproperty* prop){ + icalproperty_status stat = icalproperty_get_status(prop); + + if( !( stat == ICAL_STATUS_TENTATIVE || + stat == ICAL_STATUS_CONFIRMED )){ + + return "Failed iTIP restrictions for STATUS property. Value must be one of TENTATIVE or CONFIRMED"; + + } + + return 0; +} +char* icalrestriction_may_be_tent_conf_cancel( + icalrestriction_property_record *rec, + icalcomponent* comp, + icalproperty* prop) +{ + icalproperty_status stat = icalproperty_get_status(prop); + + if( !( stat == ICAL_STATUS_TENTATIVE || + stat == ICAL_STATUS_CONFIRMED || + stat == ICAL_STATUS_CANCELLED )){ + + return "Failed iTIP restrictions for STATUS property. Value must be one of TENTATIVE, CONFIRMED or CANCELED"; + + } + + return 0; +} + +char* icalrestriction_must_be_cancel_if_present( + icalrestriction_property_record *rec, + icalcomponent* comp, + icalproperty* prop) +{ + /* This routine will not be called if prop == 0 */ + icalproperty_status stat = icalproperty_get_status(prop); + + if( stat != ICAL_STATUS_CANCELLED) + { + return "Failed iTIP restrictions for STATUS property. Value must be CANCELLED"; + + } + + + return 0; +} + +char* icalrestriction_must_be_canceled_no_attendee( + icalrestriction_property_record *rec, + icalcomponent* comp, + icalproperty* prop) +{ + + /* Hack. see rfc2446, 3.2.5 CANCEL for porperty STATUS. I don't + understand the note */ + + return 0; +} +char* icalrestriction_must_be_recurring(icalrestriction_property_record *rec, + icalcomponent* comp, + icalproperty* prop){ + /* Hack */ + return 0; +} +char* icalrestriction_must_have_duration(icalrestriction_property_record *rec, + icalcomponent* comp, + icalproperty* prop){ + + if( !icalcomponent_get_first_property(comp,ICAL_DURATION_PROPERTY)){ + + return "Failed iTIP restrictions for STATUS property. This component must have a DURATION property"; + + } + + return 0; +} +char* icalrestriction_must_have_repeat(icalrestriction_property_record *rec, + icalcomponent* comp, + icalproperty* prop){ + if( !icalcomponent_get_first_property(comp,ICAL_REPEAT_PROPERTY)){ + + return "Failed iTIP restrictions for STATUS property. This component must have a REPEAT property"; + + } + + return 0; +} +char* icalrestriction_must_if_tz_ref(icalrestriction_property_record *rec, + icalcomponent* comp, + icalproperty* prop){ + + /* Hack */ + return 0; +} +char* icalrestriction_no_dtend(icalrestriction_property_record *rec, + icalcomponent* comp, + icalproperty* prop){ + + if( !icalcomponent_get_first_property(comp,ICAL_DTEND_PROPERTY)){ + + return "Failed iTIP restrictions for STATUS property. The component must not have both DURATION and DTEND"; + + } + + return 0; +} +char* icalrestriction_no_duration(icalrestriction_property_record *rec, + icalcomponent* comp, + icalproperty* prop){ + + /* _no_dtend takes care of this one */ + return 0; +} + + +int icalrestriction_check_component(icalproperty_method method, + icalcomponent* comp) +{ + icalproperty_kind kind; + icalcomponent_kind comp_kind; + icalrestriction_kind restr; + icalrestriction_property_record *prop_record; + icalrestriction_component_record *comp_record; + char* funcr = 0; + icalproperty *prop; + + int count; + int compare; + int valid = 1; + + comp_kind = icalcomponent_isa(comp); + + /* Check all of the properties in this component */ + + for(kind = ICAL_ANY_PROPERTY+1; kind != ICAL_NO_PROPERTY; kind++){ + count = icalcomponent_count_properties(comp, kind); + + prop_record = icalrestriction_get_property_restriction(method, + comp_kind, + kind); + + restr = prop_record->restriction; + + if(restr == ICAL_RESTRICTION_ONEEXCLUSIVE || + restr == ICAL_RESTRICTION_ONEMUTUAL) { + + /* First treat is as a 0/1 restriction */ + restr = ICAL_RESTRICTION_ZEROORONE; + compare = icalrestriction_compare(restr,count); + + } else { + + compare = icalrestriction_compare(restr,count); + } + + assert(compare != -1); + + if (compare == 0){ + char temp[TMP_BUF_SIZE]; + + snprintf(temp, TMP_BUF_SIZE,"Failed iTIP restrictions for %s property. Expected %s instances of the property and got %d", + icalenum_property_kind_to_string(kind), + restr_string_map[restr], count); + + icalcomponent_add_property + (comp, + icalproperty_vanew_xlicerror( + temp, + icalparameter_new_xlicerrortype(ICAL_XLICERRORTYPE_INVALIDITIP), + 0)); + } + + + prop = icalcomponent_get_first_property(comp, kind); + + if (prop != 0 && prop_record->function !=0 ){ + funcr = prop_record->function(prop_record,comp,prop); + } + + if(funcr !=0){ + icalcomponent_add_property + (comp, + icalproperty_vanew_xlicerror( + funcr, + icalparameter_new_xlicerrortype( + ICAL_XLICERRORTYPE_INVALIDITIP), + 0)); + + compare = 0; + } + + valid = valid && compare; + } + + + + return valid; + + +} + +int icalrestriction_check(icalcomponent* outer_comp) +{ + icalcomponent_kind comp_kind; + icalproperty_method method; + icalcomponent* inner_comp; + icalproperty *method_prop; + int valid; + + icalerror_check_arg_rz( (outer_comp!=0), "outer comp"); + + + /* Get the Method value from the outer component */ + + comp_kind = icalcomponent_isa(outer_comp); + + if (comp_kind != ICAL_VCALENDAR_COMPONENT){ + icalerror_set_errno(ICAL_BADARG_ERROR); + return 0; + } + + method_prop = icalcomponent_get_first_property(outer_comp, + ICAL_METHOD_PROPERTY); + + if (method_prop == 0){ + method = ICAL_METHOD_NONE; + } else { + method = icalproperty_get_method(method_prop); + } + + + /* Check the VCALENDAR wrapper */ + valid = icalrestriction_check_component(ICAL_METHOD_NONE,outer_comp); + + + /* Now check the inner components */ + + for(inner_comp= icalcomponent_get_first_component(outer_comp, + ICAL_ANY_COMPONENT); + inner_comp != 0; + inner_comp= icalcomponent_get_next_component(outer_comp, + ICAL_ANY_COMPONENT)){ + + valid = valid && icalrestriction_check_component(method,inner_comp); + + } + + + return valid; + +} + +icalrestriction_property_record* +icalrestriction_get_property_restriction(icalproperty_method method, + icalcomponent_kind component, + icalproperty_kind property) +{ + int i; + + for(i = 0; + icalrestriction_property_records[i].restriction != ICAL_RESTRICTION_NONE; + i++){ + + if (method == icalrestriction_property_records[i].method && + component == icalrestriction_property_records[i].component && + property == icalrestriction_property_records[i].property ){ + return &icalrestriction_property_records[i]; + } + } + + return &null_prop_record; +} + + +icalrestriction_component_record* +icalrestriction_get_component_restriction(icalproperty_method method, + icalcomponent_kind component, + icalcomponent_kind subcomponent) +{ + + int i; + + for(i = 0; + icalrestriction_component_records[i].restriction != ICAL_RESTRICTION_NONE; + i++){ + + if (method == icalrestriction_component_records[i].method && + component == icalrestriction_component_records[i].component && + subcomponent == icalrestriction_component_records[i].subcomponent ){ + return &icalrestriction_component_records[i]; + } + } + + return &null_comp_record; +} + |