--- /dev/null
+/*
+ * $Id: vcard.c 5754 2007-11-16 05:52:26Z ajc $
+ *
+ * vCard implementation for Citadel
+ *
+ * Copyright (C) 1999-2007 by Art Cancro
+ * This code is freely redistributable under the terms of the GNU General
+ * Public License. All other rights reserved.
+ */
+
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <signal.h>
+
+#if TIME_WITH_SYS_TIME
+# include <sys/time.h>
+# include <time.h>
+#else
+# if HAVE_SYS_TIME_H
+# include <sys/time.h>
+# else
+# include <time.h>
+# endif
+#endif
+
+#include <ctype.h>
+#include <string.h>
+#include <errno.h>
+#include <limits.h>
+#include <string.h>
+#include <libcitadel.h>
+
+
+/**
+ * Constructor (empty vCard)
+ * Returns an empty vcard
+ */
+struct vCard *vcard_new() {
+ struct vCard *v;
+
+ v = (struct vCard *) malloc(sizeof(struct vCard));
+ if (v == NULL) return v;
+
+ v->magic = CTDL_VCARD_MAGIC;
+ v->numprops = 0;
+ v->prop = NULL;
+
+ return v;
+}
+
+/**
+ * Remove the "charset=" attribute from a vCard property name
+ *
+ */
+void remove_charset_attribute(char *strbuf)
+{
+ int i, t;
+ char compare[256];
+
+ t = num_tokens(strbuf, ';');
+ for (i=0; i<t; ++i) {
+ extract_token(compare, strbuf, i, ';', sizeof compare);
+ striplt(compare);
+ if (!strncasecmp(compare, "charset=", 8)) {
+ remove_token(strbuf, i, ';');
+ }
+ }
+ if (!IsEmptyStr(strbuf)) {
+ if (strbuf[strlen(strbuf)-1] == ';') {
+ strbuf[strlen(strbuf)-1] = 0;
+ }
+ }
+}
+
+
+/*
+ * Add a property to a vCard
+ *
+ * v vCard structure to which we are adding
+ * propname name of new property
+ * propvalue value of new property
+ */
+void vcard_add_prop(struct vCard *v, char *propname, char *propvalue) {
+ ++v->numprops;
+ v->prop = realloc(v->prop,
+ (v->numprops * sizeof(struct vCardProp)) );
+ v->prop[v->numprops-1].name = strdup(propname);
+ v->prop[v->numprops-1].value = strdup(propvalue);
+}
+
+
+
+/**
+ * Constructor - returns a new struct vcard given a serialized vcard
+ */
+struct vCard *vcard_load(char *vtext) {
+ struct vCard *v;
+ int valid = 0;
+ char *mycopy, *ptr;
+ char *namebuf, *valuebuf;
+ int i;
+ int colonpos, nlpos;
+
+ if (vtext == NULL) return vcard_new();
+ mycopy = strdup(vtext);
+ if (mycopy == NULL) return NULL;
+
+ /**
+ * First, fix this big pile o' vCard to make it more parseable.
+ * To make it easier to parse, we convert CRLF to LF, and unfold any
+ * multi-line fields into single lines.
+ */
+ for (i=0; !IsEmptyStr(&mycopy[i]); ++i) {
+ if (!strncmp(&mycopy[i], "\r\n", 2)) {
+ strcpy(&mycopy[i], &mycopy[i+1]);
+ }
+ if ( (mycopy[i]=='\n') && (isspace(mycopy[i+1])) ) {
+ strcpy(&mycopy[i], &mycopy[i+1]);
+ }
+ }
+
+ v = vcard_new();
+ if (v == NULL) return v;
+
+ ptr = mycopy;
+ while (!IsEmptyStr(ptr)) {
+ colonpos = (-1);
+ nlpos = (-1);
+ colonpos = pattern2(ptr, ":");
+ nlpos = pattern2(ptr, "\n");
+
+ if ((nlpos > colonpos) && (colonpos > 0)) {
+ namebuf = malloc(colonpos + 1);
+ valuebuf = malloc(nlpos - colonpos + 1);
+ strncpy(namebuf, ptr, colonpos);
+ namebuf[colonpos] = 0;
+ strncpy(valuebuf, &ptr[colonpos+1], nlpos-colonpos-1);
+ valuebuf[nlpos-colonpos-1] = 0;
+
+ if (!strcasecmp(namebuf, "end")) {
+ valid = 0;
+ }
+ if ( (!strcasecmp(namebuf, "begin"))
+ && (!strcasecmp(valuebuf, "vcard"))
+ ) {
+ valid = 1;
+ }
+
+ if ( (valid) && (strcasecmp(namebuf, "begin")) ) {
+ remove_charset_attribute(namebuf);
+ ++v->numprops;
+ v->prop = realloc(v->prop,
+ (v->numprops * sizeof(struct vCardProp))
+ );
+ v->prop[v->numprops-1].name = namebuf;
+ v->prop[v->numprops-1].value = valuebuf;
+ }
+ else {
+ free(namebuf);
+ free(valuebuf);
+ }
+
+ }
+
+ while ( (*ptr != '\n') && (!IsEmptyStr(ptr)) ) {
+ ++ptr;
+ }
+ if (*ptr == '\n') ++ptr;
+ }
+
+ free(mycopy);
+ return v;
+}
+
+
+/**
+ * Fetch the value of a particular key.
+ * If is_partial is set to 1, a partial match is ok (for example,
+ * a key of "tel;home" will satisfy a search for "tel").
+ * Set "instance" to a value higher than 0 to return subsequent instances
+ * of the same key.
+ *
+ * Set "get_propname" to nonzero to fetch the property name instead of value.
+ * v vCard to get keyvalue from
+ * propname key to retrieve
+ * is_partial
+ * instance if nonzero return a later token of the value
+ * get_propname if nonzero get the real property name???
+ *
+ * returns the requested value / token / propertyname
+ */
+char *vcard_get_prop(struct vCard *v, char *propname,
+ int is_partial, int instance, int get_propname) {
+ int i;
+ int found_instance = 0;
+
+ if (v->numprops) for (i=0; i<(v->numprops); ++i) {
+ if ( (!strcasecmp(v->prop[i].name, propname))
+ || (propname[0] == 0)
+ || ( (!strncasecmp(v->prop[i].name,
+ propname, strlen(propname)))
+ && (v->prop[i].name[strlen(propname)] == ';')
+ && (is_partial) ) ) {
+ if (instance == found_instance++) {
+ if (get_propname) {
+ return(v->prop[i].name);
+ }
+ else {
+ return(v->prop[i].value);
+ }
+ }
+ }
+ }
+
+ return NULL;
+}
+
+
+
+
+/*
+ * Destructor
+ */
+void vcard_free(struct vCard *v) {
+ int i;
+
+ if (v->magic != CTDL_VCARD_MAGIC) return; /* Self-check */
+
+ if (v->numprops) for (i=0; i<(v->numprops); ++i) {
+ free(v->prop[i].name);
+ free(v->prop[i].value);
+ }
+
+ if (v->prop != NULL) free(v->prop);
+
+ memset(v, 0, sizeof(struct vCard));
+ free(v);
+}
+
+
+
+
+/*
+ * Set a name/value pair in the card
+ * v vCard to manipulate
+ * name key to set
+ * value the value to assign to key
+ * append if nonzero, append rather than replace if this key already exists.
+ */
+void vcard_set_prop(struct vCard *v, char *name, char *value, int append) {
+ int i;
+
+ if (v->magic != CTDL_VCARD_MAGIC) return; /* Self-check */
+
+ /** If this key is already present, replace it */
+ if (!append) if (v->numprops) for (i=0; i<(v->numprops); ++i) {
+ if (!strcasecmp(v->prop[i].name, name)) {
+ free(v->prop[i].name);
+ free(v->prop[i].value);
+ v->prop[i].name = strdup(name);
+ v->prop[i].value = strdup(value);
+ return;
+ }
+ }
+
+ /* Otherwise, append it */
+ ++v->numprops;
+ v->prop = realloc(v->prop,
+ (v->numprops * sizeof(struct vCardProp)) );
+ v->prop[v->numprops-1].name = strdup(name);
+ v->prop[v->numprops-1].value = strdup(value);
+}
+
+
+
+
+/*
+ * Serialize a 'struct vcard' into an actual vcard.
+ */
+char *vcard_serialize(struct vCard *v)
+{
+ char *ser;
+ int i, j;
+ size_t len;
+ int is_utf8 = 0;
+
+ if (v->magic != CTDL_VCARD_MAGIC) return NULL; /* self check */
+
+ /** Figure out how big a buffer we need to allocate */
+ len = 64; /* for begin, end, and a little padding for safety */
+ if (v->numprops) for (i=0; i<(v->numprops); ++i) {
+ len = len +
+ strlen(v->prop[i].name) +
+ strlen(v->prop[i].value) + 16;
+ }
+
+ ser = malloc(len);
+ if (ser == NULL) return NULL;
+
+ safestrncpy(ser, "begin:vcard\r\n", len);
+ if (v->numprops) for (i=0; i<(v->numprops); ++i) {
+ if ( (strcasecmp(v->prop[i].name, "end")) && (v->prop[i].value != NULL) ) {
+ is_utf8 = 0;
+ for (j=0; !IsEmptyStr(&v->prop[i].value[j]); ++j) {
+ if ( (v->prop[i].value[j] < 32) || (v->prop[i].value[j] > 126) ) {
+ is_utf8 = 1;
+ }
+ }
+ strcat(ser, v->prop[i].name);
+ if (is_utf8) {
+ strcat(ser, ";charset=UTF-8");
+ }
+ strcat(ser, ":");
+ strcat(ser, v->prop[i].value);
+ strcat(ser, "\r\n");
+ }
+ }
+ strcat(ser, "end:vcard\r\n");
+
+ return ser;
+}
+
+
+
+/*
+ * Convert FN (Friendly Name) into N (Name)
+ *
+ * vname Supplied friendly-name
+ * n Target buffer to store Name
+ * vname_size Size of buffer
+ */
+void vcard_fn_to_n(char *vname, char *n, size_t vname_size) {
+ char lastname[256];
+ char firstname[256];
+ char middlename[256];
+ char honorific_prefixes[256];
+ char honorific_suffixes[256];
+ char buf[256];
+
+ safestrncpy(buf, n, sizeof buf);
+
+ /* Try to intelligently convert the screen name to a
+ * fully expanded vCard name based on the number of
+ * words in the name
+ */
+ safestrncpy(lastname, "", sizeof lastname);
+ safestrncpy(firstname, "", sizeof firstname);
+ safestrncpy(middlename, "", sizeof middlename);
+ safestrncpy(honorific_prefixes, "", sizeof honorific_prefixes);
+ safestrncpy(honorific_suffixes, "", sizeof honorific_suffixes);
+
+ /* Honorific suffixes */
+ if (num_tokens(buf, ',') > 1) {
+ extract_token(honorific_suffixes, buf, (num_tokens(buf, ' ') - 1), ',',
+ sizeof honorific_suffixes);
+ remove_token(buf, (num_tokens(buf, ',') - 1), ',');
+ }
+
+ /* Find a last name */
+ extract_token(lastname, buf, (num_tokens(buf, ' ') - 1), ' ', sizeof lastname);
+ remove_token(buf, (num_tokens(buf, ' ') - 1), ' ');
+
+ /* Find honorific prefixes */
+ if (num_tokens(buf, ' ') > 2) {
+ extract_token(honorific_prefixes, buf, 0, ' ', sizeof honorific_prefixes);
+ remove_token(buf, 0, ' ');
+ }
+
+ /* Find a middle name */
+ if (num_tokens(buf, ' ') > 1) {
+ extract_token(middlename, buf, (num_tokens(buf, ' ') - 1), ' ', sizeof middlename);
+ remove_token(buf, (num_tokens(buf, ' ') - 1), ' ');
+ }
+
+ /* Anything left is probably the first name */
+ safestrncpy(firstname, buf, sizeof firstname);
+ striplt(firstname);
+
+ /* Compose the structured name */
+ snprintf(vname, vname_size, "%s;%s;%s;%s;%s", lastname, firstname, middlename,
+ honorific_prefixes, honorific_suffixes);
+}
+
+
+
+
projects / citadel.git / blobdiff