Diffstat (limited to 'libical/src/libical/icalproperty.c') (more/less context) (ignore whitespace changes)
| -rw-r--r-- | libical/src/libical/icalproperty.c | 810 |
1 files changed, 810 insertions, 0 deletions
diff --git a/libical/src/libical/icalproperty.c b/libical/src/libical/icalproperty.c new file mode 100644 index 0000000..7f2cfa5 --- a/dev/null +++ b/libical/src/libical/icalproperty.c @@ -0,0 +1,810 @@ +/* -*- Mode: C -*- */ + +/*====================================================================== + FILE: icalproperty.c + CREATOR: eric 28 April 1999 + + $Id$ + + + (C) COPYRIGHT 2000, Eric Busboom, http://www.softwarestudio.org + + This program is free software; you can redistribute it and/or modify + it under the terms of either: + + The LGPL as published by the Free Software Foundation, version + 2.1, available at: http://www.fsf.org/copyleft/lesser.html + + Or: + + The Mozilla Public License Version 1.0. You may obtain a copy of + the License at http://www.mozilla.org/MPL/ + + The original code is icalproperty.c + +======================================================================*/ +/*#line 27 "icalproperty.c.in"*/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include "icalproperty.h" +#include "icalparameter.h" +#include "icalcomponent.h" +#include "pvl.h" +#include "icalenums.h" +#include "icalerror.h" +#include "icalmemory.h" +#include "icalparser.h" + +#include <string.h> /* For icalmemory_strdup, rindex */ +#include <assert.h> +#include <stdlib.h> +#include <errno.h> +#include <stdio.h> /* for printf */ +#include <stdarg.h> /* for va_list, va_start, etc. */ + +int snprintf(char *str, size_t n, char const *fmt, ...); + +#define TMP_BUF_SIZE 1024 + +/* Private routines for icalproperty */ +void icalvalue_set_parent(icalvalue* value, + icalproperty* property); +icalproperty* icalvalue_get_parent(icalvalue* value); + +void icalparameter_set_parent(icalparameter* param, + icalproperty* property); +icalproperty* icalparameter_get_parent(icalparameter* value); + + +void icalproperty_set_x_name(icalproperty* prop, const char* name); + +struct icalproperty_impl +{ + char id[5]; + icalproperty_kind kind; + char* x_name; + pvl_list parameters; + pvl_elem parameter_iterator; + icalvalue* value; + icalcomponent *parent; +}; + +void icalproperty_add_parameters(struct icalproperty_impl *prop,va_list args) +{ + + void* vp; + + struct icalproperty_impl *impl = (struct icalproperty_impl*)prop; + + while((vp = va_arg(args, void*)) != 0) { + + if (icalvalue_isa_value(vp) != 0 ){ + } else if (icalparameter_isa_parameter(vp) != 0 ){ + + icalproperty_add_parameter((icalproperty*)impl, + (icalparameter*)vp); + } else { + assert(0); + } + + } + + +} + + +struct icalproperty_impl* +icalproperty_new_impl (icalproperty_kind kind) +{ + struct icalproperty_impl* prop; + + if ( ( prop = (struct icalproperty_impl*) + malloc(sizeof(struct icalproperty_impl))) == 0) { + icalerror_set_errno(ICAL_NEWFAILED_ERROR); + return 0; + } + + strcpy(prop->id,"prop"); + + prop->kind = kind; + prop->parameters = pvl_newlist(); + prop->parameter_iterator = 0; + prop->value = 0; + prop->x_name = 0; + prop->parent = 0; + + return prop; +} + + +icalproperty* +icalproperty_new (icalproperty_kind kind) +{ + if(kind == ICAL_NO_PROPERTY){ + return 0; + } + + return (icalproperty*)icalproperty_new_impl(kind); +} + + +icalproperty* +icalproperty_new_clone(icalproperty* prop) +{ + struct icalproperty_impl *old = (struct icalproperty_impl*)prop; + struct icalproperty_impl *new = icalproperty_new_impl(old->kind); + pvl_elem p; + + icalerror_check_arg_rz((prop!=0),"Prop"); + icalerror_check_arg_rz((old!=0),"old"); + icalerror_check_arg_rz((new!=0),"new"); + + if (old->value !=0) { + new->value = icalvalue_new_clone(old->value); + } + + if (old->x_name != 0) { + + new->x_name = icalmemory_strdup(old->x_name); + + if (new->x_name == 0) { + icalproperty_free(new); + icalerror_set_errno(ICAL_NEWFAILED_ERROR); + return 0; + } + } + + for(p=pvl_head(old->parameters);p != 0; p = pvl_next(p)){ + icalparameter *param = icalparameter_new_clone(pvl_data(p)); + + if (param == 0){ + icalproperty_free(new); + icalerror_set_errno(ICAL_NEWFAILED_ERROR); + return 0; + } + + pvl_push(new->parameters,param); + + } + + return new; + +} + +icalproperty* icalproperty_new_from_string(const char* str) +{ + + size_t buf_size = 1024; + char* buf = icalmemory_new_buffer(buf_size); + char* buf_ptr = buf; + icalproperty *prop; + icalcomponent *comp; + int errors = 0; + + icalerror_check_arg_rz( (str!=0),"str"); + + /* Is this a HACK or a crafty reuse of code? */ + + icalmemory_append_string(&buf, &buf_ptr, &buf_size, "BEGIN:VCALENDAR\n"); + icalmemory_append_string(&buf, &buf_ptr, &buf_size, str); + icalmemory_append_string(&buf, &buf_ptr, &buf_size, "\n"); + icalmemory_append_string(&buf, &buf_ptr, &buf_size, "END:VCALENDAR\n"); + + comp = icalparser_parse_string(buf); + + if(comp == 0){ + icalerror_set_errno(ICAL_PARSE_ERROR); + return 0; + } + + errors = icalcomponent_count_errors(comp); + + prop = icalcomponent_get_first_property(comp,ICAL_ANY_PROPERTY); + + icalcomponent_remove_property(comp,prop); + + icalcomponent_free(comp); + free(buf); + + if(errors > 0){ + icalproperty_free(prop); + return 0; + } else { + return prop; + } + +} + +void +icalproperty_free (icalproperty* prop) +{ + struct icalproperty_impl *p; + + icalparameter* param; + + icalerror_check_arg_rv((prop!=0),"prop"); + + p = (struct icalproperty_impl*)prop; + +#ifdef ICAL_FREE_ON_LIST_IS_ERROR + icalerror_assert( (p->parent ==0),"Tried to free a property that is still attached to a component. "); + +#else + if(p->parent !=0){ + return; + } +#endif + + if (p->value != 0){ + icalvalue_set_parent(p->value,0); + icalvalue_free(p->value); + } + + while( (param = pvl_pop(p->parameters)) != 0){ + icalparameter_free(param); + } + + pvl_free(p->parameters); + + if (p->x_name != 0) { + free(p->x_name); + } + + p->kind = ICAL_NO_PROPERTY; + p->parameters = 0; + p->parameter_iterator = 0; + p->value = 0; + p->x_name = 0; + p->id[0] = 'X'; + + free(p); + +} + + +const char* +icalproperty_as_ical_string (icalproperty* prop) +{ + icalparameter *param; + + /* Create new buffer that we can append names, parameters and a + value to, and reallocate as needed. Later, this buffer will be + copied to a icalmemory_tmp_buffer, which is managed internally + by libical, so it can be given to the caller without fear of + the caller forgetting to free it */ + + const char* property_name = 0; + size_t buf_size = 1024; + char* buf = icalmemory_new_buffer(buf_size); + char* buf_ptr = buf; + icalvalue* value; + char *out_buf; + + char newline[] = "\n"; + + struct icalproperty_impl *impl = (struct icalproperty_impl*)prop; + + icalerror_check_arg_rz( (prop!=0),"prop"); + + + /* Append property name */ + + if (impl->kind == ICAL_X_PROPERTY && impl->x_name != 0){ + property_name = impl->x_name; + } else { + property_name = icalproperty_kind_to_string(impl->kind); + } + + if (property_name == 0 ) { + icalerror_warn("Got a property of an unknown kind."); + icalmemory_free_buffer(buf); + return 0; + + } + + + icalmemory_append_string(&buf, &buf_ptr, &buf_size, property_name); + icalmemory_append_string(&buf, &buf_ptr, &buf_size, newline); + + + + /* Determine what VALUE parameter to include. The VALUE parameters + are ignored in the normal parameter printing ( the block after + this one, so we need to do it here */ + { + const char* kind_string = 0; + + icalparameter *orig_val_param + = icalproperty_get_first_parameter(prop,ICAL_VALUE_PARAMETER); + + icalvalue *value = icalproperty_get_value(impl); + + icalvalue_kind orig_kind = ICAL_NO_VALUE; + + icalvalue_kind this_kind = ICAL_NO_VALUE; + + icalvalue_kind default_kind + = icalproperty_kind_to_value_kind(impl->kind); + + if(orig_val_param){ + orig_kind = (icalvalue_kind)icalparameter_get_value(orig_val_param); + } + + if(value != 0){ + this_kind = icalvalue_isa(value); + } + + + if(this_kind == default_kind && + orig_kind != ICAL_NO_VALUE){ + /* The kind is the default, so it does not need to be + included, but do it anyway, since it was explicit in + the property. But, use the default, not the one + specified in the property */ + + kind_string = icalvalue_kind_to_string(default_kind); + + } else if (this_kind != default_kind && this_kind != ICAL_NO_VALUE){ + /* Not the default, so it must be specified */ + kind_string = icalvalue_kind_to_string(this_kind); + } else { + /* Don'tinclude the VALUE parameter at all */ + } + + if(kind_string!=0){ + icalmemory_append_string(&buf, &buf_ptr, &buf_size, " ;"); + icalmemory_append_string(&buf, &buf_ptr, &buf_size, "VALUE="); + icalmemory_append_string(&buf, &buf_ptr, &buf_size, kind_string); + icalmemory_append_string(&buf, &buf_ptr, &buf_size, newline); + } + + + } + + /* Append parameters */ + for(param = icalproperty_get_first_parameter(prop,ICAL_ANY_PARAMETER); + param != 0; + param = icalproperty_get_next_parameter(prop,ICAL_ANY_PARAMETER)) { + + char* kind_string = icalparameter_as_ical_string(param); + icalparameter_kind kind = icalparameter_isa(param); + + if(kind==ICAL_VALUE_PARAMETER){ + continue; + } + + if (kind_string == 0 ) { + char temp[TMP_BUF_SIZE]; + snprintf(temp, TMP_BUF_SIZE,"Got a parameter of unknown kind in %s property",property_name); + icalerror_warn(temp); + continue; + } + + icalmemory_append_string(&buf, &buf_ptr, &buf_size, " ;"); + icalmemory_append_string(&buf, &buf_ptr, &buf_size, kind_string); + icalmemory_append_string(&buf, &buf_ptr, &buf_size, newline); + + } + + /* Append value */ + + icalmemory_append_string(&buf, &buf_ptr, &buf_size, " :"); + + value = icalproperty_get_value(prop); + + if (value != 0){ + const char *str = icalvalue_as_ical_string(value); + icalerror_assert((str !=0),"Could not get string representation of a value"); + icalmemory_append_string(&buf, &buf_ptr, &buf_size, str); + } else { + icalmemory_append_string(&buf, &buf_ptr, &buf_size,"ERROR: No Value"); + + } + + icalmemory_append_string(&buf, &buf_ptr, &buf_size, newline); + + /* Now, copy the buffer to a tmp_buffer, which is safe to give to + the caller without worring about de-allocating it. */ + + + out_buf = icalmemory_tmp_buffer(strlen(buf)+1); + strcpy(out_buf, buf); + + icalmemory_free_buffer(buf); + + return out_buf; +} + + + +icalproperty_kind +icalproperty_isa (icalproperty* property) +{ + struct icalproperty_impl *p = (struct icalproperty_impl*)property; + + if(property != 0){ + return p->kind; + } + + return ICAL_NO_PROPERTY; +} + +int +icalproperty_isa_property (void* property) +{ + struct icalproperty_impl *impl = (struct icalproperty_impl*)property; + + icalerror_check_arg_rz( (property!=0), "property"); + + if (strcmp(impl->id,"prop") == 0) { + return 1; + } else { + return 0; + } +} + + +void +icalproperty_add_parameter (icalproperty* prop,icalparameter* parameter) +{ + struct icalproperty_impl *p = (struct icalproperty_impl*)prop; + + icalerror_check_arg_rv( (prop!=0),"prop"); + icalerror_check_arg_rv( (parameter!=0),"parameter"); + + pvl_push(p->parameters, parameter); + +} + +void +icalproperty_set_parameter (icalproperty* prop,icalparameter* parameter) +{ + icalparameter_kind kind; + + icalerror_check_arg_rv( (prop!=0),"prop"); + icalerror_check_arg_rv( (parameter!=0),"parameter"); + + kind = icalparameter_isa(parameter); + + icalproperty_remove_parameter(prop,kind); + + icalproperty_add_parameter(prop,parameter); +} + +void icalproperty_set_parameter_from_string(icalproperty* prop, + const char* name, const char* value) +{ + + icalparameter_kind kind; + icalparameter *param; + + icalerror_check_arg_rv( (prop!=0),"prop"); + icalerror_check_arg_rv( (name!=0),"name"); + icalerror_check_arg_rv( (value!=0),"value"); + + kind = icalparameter_string_to_kind(name); + + if(kind == ICAL_NO_PARAMETER){ + icalerror_set_errno(ICAL_BADARG_ERROR); + return; + } + + param = icalparameter_new_from_value_string(kind,value); + + if (param == 0){ + icalerror_set_errno(ICAL_BADARG_ERROR); + return; + } + + icalproperty_set_parameter(prop,param); + +} + +const char* icalproperty_get_parameter_as_string(icalproperty* prop, + const char* name) +{ + icalparameter_kind kind; + icalparameter *param; + char* str; + char* pv; + + icalerror_check_arg_rz( (prop!=0),"prop"); + icalerror_check_arg_rz( (name!=0),"name"); + + kind = icalparameter_string_to_kind(name); + + if(kind == ICAL_NO_PROPERTY){ + /* icalenum_string_to_parameter_kind will set icalerrno */ + return 0; + } + + param = icalproperty_get_first_parameter(prop,kind); + + if (param == 0){ + return 0; + } + + str = icalparameter_as_ical_string(param); + + pv = strchr(str,'='); + + if(pv == 0){ + icalerror_set_errno(ICAL_INTERNAL_ERROR); + return 0; + } + + return pv+1; + +} + +void +icalproperty_remove_parameter (icalproperty* prop, icalparameter_kind kind) +{ + pvl_elem p; + struct icalproperty_impl *impl = (struct icalproperty_impl*)prop; + + icalerror_check_arg_rv((prop!=0),"prop"); + + for(p=pvl_head(impl->parameters);p != 0; p = pvl_next(p)){ + icalparameter* param = (icalparameter *)pvl_data (p); + if (icalparameter_isa(param) == kind) { + pvl_remove (impl->parameters, p); + icalparameter_free (param); + break; + } + } +} + + +int +icalproperty_count_parameters (icalproperty* prop) +{ + struct icalproperty_impl *p = (struct icalproperty_impl*)prop; + + if(prop != 0){ + return pvl_count(p->parameters); + } + + icalerror_set_errno(ICAL_USAGE_ERROR); + return -1; +} + + +icalparameter* +icalproperty_get_first_parameter (icalproperty* prop, icalparameter_kind kind) +{ + struct icalproperty_impl *p = (struct icalproperty_impl*)prop; + + icalerror_check_arg_rz( (prop!=0),"prop"); + + p->parameter_iterator = pvl_head(p->parameters); + + if (p->parameter_iterator == 0) { + return 0; + } + + for( p->parameter_iterator = pvl_head(p->parameters); + p->parameter_iterator !=0; + p->parameter_iterator = pvl_next(p->parameter_iterator)){ + + icalparameter *param = (icalparameter*)pvl_data(p->parameter_iterator); + + if(icalparameter_isa(param) == kind || kind == ICAL_ANY_PARAMETER){ + return param; + } + } + + return 0; +} + + +icalparameter* +icalproperty_get_next_parameter (icalproperty* prop, icalparameter_kind kind) +{ + struct icalproperty_impl *p = (struct icalproperty_impl*)prop; + + icalerror_check_arg_rz( (prop!=0),"prop"); + + if (p->parameter_iterator == 0) { + return 0; + } + + for( p->parameter_iterator = pvl_next(p->parameter_iterator); + p->parameter_iterator !=0; + p->parameter_iterator = pvl_next(p->parameter_iterator)){ + + icalparameter *param = (icalparameter*)pvl_data(p->parameter_iterator); + + if(icalparameter_isa(param) == kind || kind == ICAL_ANY_PARAMETER){ + return param; + } + } + + return 0; + +} + +void +icalproperty_set_value (icalproperty* prop, icalvalue* value) +{ + struct icalproperty_impl *p = (struct icalproperty_impl*)prop; + + icalerror_check_arg_rv((prop !=0),"prop"); + icalerror_check_arg_rv((value !=0),"value"); + + if (p->value != 0){ + icalvalue_set_parent(p->value,0); + icalvalue_free(p->value); + p->value = 0; + } + + p->value = value; + + icalvalue_set_parent(value,prop); +} + + +void icalproperty_set_value_from_string(icalproperty* prop,const char* str, + const char* type) +{ + icalvalue *oval,*nval; + icalvalue_kind kind = ICAL_NO_VALUE; + + icalerror_check_arg_rv( (prop!=0),"prop"); + icalerror_check_arg_rv( (str!=0),"str"); + icalerror_check_arg_rv( (type!=0),"type"); + + if(strcmp(type,"NO")==0){ + /* Get the type from the value the property already has, if it exists */ + oval = icalproperty_get_value(prop); + if(oval != 0){ + /* Use the existing value kind */ + kind = icalvalue_isa(oval); + } else { + /* Use the default kind for the property */ + kind = icalproperty_kind_to_value_kind(icalproperty_isa(prop)); + } + } else { + /* Use the given kind string */ + kind = icalvalue_string_to_kind(type); + } + + if(kind == ICAL_NO_VALUE){ + icalerror_set_errno(ICAL_MALFORMEDDATA_ERROR); + return; + } + + nval = icalvalue_new_from_string(kind, str); + + if(nval == 0){ + /* icalvalue_new_from_string sets errno */ + assert(icalerrno != ICAL_NO_ERROR); + return; + } + + icalproperty_set_value(prop,nval); + + +} + +icalvalue* +icalproperty_get_value (icalproperty* prop) +{ + struct icalproperty_impl *p = (struct icalproperty_impl*)prop; + + icalerror_check_arg_rz( (prop!=0),"prop"); + + return p->value; +} + +const char* icalproperty_get_value_as_string(icalproperty* prop) +{ + icalvalue *value; + + struct icalproperty_impl *impl = (struct icalproperty_impl*)prop; + + icalerror_check_arg_rz( (prop!=0),"prop"); + + value = impl->value; + + return icalvalue_as_ical_string(value); +} + + +void icalproperty_set_x_name(icalproperty* prop, const char* name) +{ + struct icalproperty_impl *impl = (struct icalproperty_impl*)prop; + + icalerror_check_arg_rv( (name!=0),"name"); + icalerror_check_arg_rv( (prop!=0),"prop"); + + if (impl->x_name != 0) { + free(impl->x_name); + } + + impl->x_name = icalmemory_strdup(name); + + if(impl->x_name == 0){ + icalerror_set_errno(ICAL_NEWFAILED_ERROR); + } + +} + +const char* icalproperty_get_x_name(icalproperty* prop){ + + struct icalproperty_impl *impl = (struct icalproperty_impl*)prop; + + icalerror_check_arg_rz( (prop!=0),"prop"); + + return impl->x_name; +} + + +/* From Jonathan Yue <jonathan.yue@cp.net> */ +const char* icalproperty_get_name (icalproperty* prop) +{ + + const char* property_name = 0; + size_t buf_size = 256; + char* buf = icalmemory_new_buffer(buf_size); + char* buf_ptr = buf; + + struct icalproperty_impl *impl = (struct icalproperty_impl*)prop; + + icalerror_check_arg_rz( (prop!=0),"prop"); + + if (impl->kind == ICAL_X_PROPERTY && impl->x_name != 0){ + property_name = impl->x_name; + } else { + property_name = icalproperty_kind_to_string(impl->kind); + } + + if (property_name == 0 ) { + icalerror_set_errno(ICAL_MALFORMEDDATA_ERROR); + return 0; + + } else { + /* _append_string will automatically grow the buffer if + property_name is longer than the initial buffer size */ + icalmemory_append_string(&buf, &buf_ptr, &buf_size, property_name); + } + + /* Add the buffer to the temporary buffer ring -- the caller will + not have to free the memory. */ + icalmemory_add_tmp_buffer(buf); + + return buf; +} + + + + +void icalproperty_set_parent(icalproperty* property, + icalcomponent* component) +{ + struct icalproperty_impl *impl = (struct icalproperty_impl*)property; + + icalerror_check_arg_rv( (property!=0),"property"); + + impl->parent = component; +} + +icalcomponent* icalproperty_get_parent(icalproperty* property) +{ + struct icalproperty_impl *impl = (struct icalproperty_impl*)property; + + icalerror_check_arg_rz( (property!=0),"property"); + + return impl->parent; +} + + + + + + + +/* Everything below this line is machine generated. Do not edit. */ |