pidgin/pidgin

Hide common_sockaddr_t as it needs to be removed but it's causing issues now

2020-07-13, Gary Kramlich
a377443c1338
Hide common_sockaddr_t as it needs to be removed but it's causing issues now

As mentioned in https://reviews.imfreedom.org/r/14/ this is my current fix for the `common_sockaddr_t` problem. And that is to just hide. By hiding it, we make the core network api and bonjour uses of it independent which means we can swap the out individually with smaller review requests.

Hide common_sockaddr_t as it needs to be removed but it's causing issues now

Reviewed at https://reviews.imfreedom.org/r/15/
/* Purple is the legal property of its developers, whose names are too numerous
* to list here. Please refer to the COPYRIGHT file distributed with this
* source distribution.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA
*/
#include <glib/gi18n-lib.h>
#include "internal.h"
#include "purpleprivate.h"
#include "conversation.h"
#include "core.h"
#include "debug.h"
#include "notify.h"
#include "protocol.h"
#include "prefs.h"
#include "util.h"
#include <json-glib/json-glib.h>
static char *custom_user_dir = NULL;
static char *user_dir = NULL;
static gchar *cache_dir = NULL;
static gchar *config_dir = NULL;
static gchar *data_dir = NULL;
void
purple_util_init(void)
{
}
void
purple_util_uninit(void)
{
/* Free these so we don't have leaks at shutdown. */
g_free(custom_user_dir);
custom_user_dir = NULL;
g_free(user_dir);
user_dir = NULL;
g_free(cache_dir);
cache_dir = NULL;
g_free(config_dir);
config_dir = NULL;
g_free(data_dir);
data_dir = NULL;
}
/**************************************************************************
* Base16 Functions
**************************************************************************/
gchar *
purple_base16_encode(const guchar *data, gsize len)
{
gsize i;
gchar *ascii = NULL;
g_return_val_if_fail(data != NULL, NULL);
g_return_val_if_fail(len > 0, NULL);
ascii = g_malloc(len * 2 + 1);
for (i = 0; i < len; i++)
g_snprintf(&ascii[i * 2], 3, "%02x", data[i] & 0xFF);
return ascii;
}
guchar *
purple_base16_decode(const char *str, gsize *ret_len)
{
gsize len, i, accumulator = 0;
guchar *data;
g_return_val_if_fail(str != NULL, NULL);
len = strlen(str);
g_return_val_if_fail(*str, 0);
g_return_val_if_fail(len % 2 == 0, 0);
data = g_malloc(len / 2);
for (i = 0; i < len; i++)
{
if ((i % 2) == 0)
accumulator = 0;
else
accumulator <<= 4;
if (isdigit(str[i]))
accumulator |= str[i] - 48;
else
{
switch(tolower(str[i]))
{
case 'a': accumulator |= 10; break;
case 'b': accumulator |= 11; break;
case 'c': accumulator |= 12; break;
case 'd': accumulator |= 13; break;
case 'e': accumulator |= 14; break;
case 'f': accumulator |= 15; break;
}
}
if (i % 2)
data[(i - 1) / 2] = accumulator;
}
if (ret_len != NULL)
*ret_len = len / 2;
return data;
}
gchar *
purple_base16_encode_chunked(const guchar *data, gsize len)
{
gsize i;
gchar *ascii = NULL;
g_return_val_if_fail(data != NULL, NULL);
g_return_val_if_fail(len > 0, NULL);
/* For each byte of input, we need 2 bytes for the hex representation
* and 1 for the colon.
* The final colon will be replaced by a terminating NULL
*/
ascii = g_malloc(len * 3 + 1);
for (i = 0; i < len; i++)
g_snprintf(&ascii[i * 3], 4, "%02x:", data[i] & 0xFF);
/* Replace the final colon with NULL */
ascii[len * 3 - 1] = 0;
return ascii;
}
/**************************************************************************
* Date/Time Functions
**************************************************************************/
const char *
purple_utf8_strftime(const char *format, const struct tm *tm)
{
static char buf[128];
GDateTime *dt;
char *utf8;
g_return_val_if_fail(format != NULL, NULL);
if (tm == NULL)
{
dt = g_date_time_new_now_local();
} else {
dt = g_date_time_new_local(tm->tm_year + 1900, tm->tm_mon + 1,
tm->tm_mday, tm->tm_hour,
tm->tm_min, tm->tm_sec);
}
utf8 = g_date_time_format(dt, format);
g_date_time_unref(dt);
if (utf8 == NULL) {
purple_debug_error("util",
"purple_utf8_strftime(): Formatting failed\n");
return "";
}
g_strlcpy(buf, utf8, sizeof(buf));
g_free(utf8);
return buf;
}
const char *
purple_date_format_short(const struct tm *tm)
{
return purple_utf8_strftime("%x", tm);
}
const char *
purple_date_format_long(const struct tm *tm)
{
/*
* This string determines how some dates are displayed. The default
* string "%x %X" shows the date then the time. Translators can
* change this to "%X %x" if they want the time to be shown first,
* followed by the date.
*/
return purple_utf8_strftime(_("%x %X"), tm);
}
const char *
purple_date_format_full(const struct tm *tm)
{
return purple_utf8_strftime("%c", tm);
}
const char *
purple_time_format(const struct tm *tm)
{
return purple_utf8_strftime("%X", tm);
}
time_t
purple_time_build(int year, int month, int day, int hour, int min, int sec)
{
struct tm tm;
tm.tm_year = year - 1900;
tm.tm_mon = month - 1;
tm.tm_mday = day;
tm.tm_hour = hour;
tm.tm_min = min;
tm.tm_sec = sec >= 0 ? sec : time(NULL) % 60;
return mktime(&tm);
}
/* originally taken from GLib trunk 1-6-11 */
/* originally licensed as LGPL 2+ */
static time_t
mktime_utc(struct tm *tm)
{
time_t retval;
#ifndef HAVE_TIMEGM
static const gint days_before[] =
{
0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334
};
#endif
#ifndef HAVE_TIMEGM
if (tm->tm_mon < 0 || tm->tm_mon > 11)
return (time_t) -1;
retval = (tm->tm_year - 70) * 365;
retval += (tm->tm_year - 68) / 4;
retval += days_before[tm->tm_mon] + tm->tm_mday - 1;
if (tm->tm_year % 4 == 0 && tm->tm_mon < 2)
retval -= 1;
retval = ((((retval * 24) + tm->tm_hour) * 60) + tm->tm_min) * 60 + tm->tm_sec;
#else
retval = timegm (tm);
#endif /* !HAVE_TIMEGM */
return retval;
}
time_t
purple_str_to_time(const char *timestamp, gboolean utc,
struct tm *tm, long *tz_off, const char **rest)
{
struct tm t;
const gchar *str;
gint year = 0;
long tzoff = PURPLE_NO_TZ_OFF;
time_t retval;
gboolean mktime_with_utc = FALSE;
if (rest != NULL)
*rest = NULL;
g_return_val_if_fail(timestamp != NULL, 0);
memset(&t, 0, sizeof(struct tm));
str = timestamp;
/* Strip leading whitespace */
while (g_ascii_isspace(*str))
str++;
if (*str == '\0') {
if (rest != NULL) {
*rest = str;
}
return 0;
}
if (!g_ascii_isdigit(*str) && *str != '-' && *str != '+') {
if (rest != NULL && *str != '\0')
*rest = str;
return 0;
}
/* 4 digit year */
if (sscanf(str, "%04d", &year) && year >= 1900) {
str += 4;
if (*str == '-' || *str == '/')
str++;
t.tm_year = year - 1900;
}
/* 2 digit month */
if (!sscanf(str, "%02d", &t.tm_mon)) {
if (rest != NULL && *str != '\0')
*rest = str;
return 0;
}
str += 2;
t.tm_mon -= 1;
if (*str == '-' || *str == '/')
str++;
/* 2 digit day */
if (!sscanf(str, "%02d", &t.tm_mday)) {
if (rest != NULL && *str != '\0')
*rest = str;
return 0;
}
str += 2;
/* Grab the year off the end if there's still stuff */
if (*str == '/' || *str == '-') {
/* But make sure we don't read the year twice */
if (year >= 1900) {
if (rest != NULL && *str != '\0')
*rest = str;
return 0;
}
str++;
if (!sscanf(str, "%04d", &t.tm_year)) {
if (rest != NULL && *str != '\0')
*rest = str;
return 0;
}
t.tm_year -= 1900;
} else if (*str == 'T' || *str == '.') {
str++;
/* Continue grabbing the hours/minutes/seconds */
if ((sscanf(str, "%02d:%02d:%02d", &t.tm_hour, &t.tm_min, &t.tm_sec) == 3 &&
(str += 8)) ||
(sscanf(str, "%02d%02d%02d", &t.tm_hour, &t.tm_min, &t.tm_sec) == 3 &&
(str += 6)))
{
gint sign, tzhrs, tzmins;
if (*str == '.') {
/* Cut off those pesky micro-seconds */
do {
str++;
} while (*str >= '0' && *str <= '9');
}
sign = (*str == '+') ? 1 : -1;
/* Process the timezone */
if (*str == '+' || *str == '-') {
str++;
if (((sscanf(str, "%02d:%02d", &tzhrs, &tzmins) == 2 && (str += 5)) ||
(sscanf(str, "%02d%02d", &tzhrs, &tzmins) == 2 && (str += 4))))
{
mktime_with_utc = TRUE;
tzoff = tzhrs * 60 * 60 + tzmins * 60;
tzoff *= sign;
}
} else if (*str == 'Z') {
/* 'Z' = Zulu = UTC */
str++;
mktime_with_utc = TRUE;
tzoff = 0;
}
if (!mktime_with_utc)
{
/* No timezone specified. */
if (utc) {
mktime_with_utc = TRUE;
tzoff = 0;
} else {
/* Local Time */
t.tm_isdst = -1;
}
}
}
}
if (rest != NULL && *str != '\0') {
/* Strip trailing whitespace */
while (g_ascii_isspace(*str))
str++;
if (*str != '\0')
*rest = str;
}
if (mktime_with_utc)
retval = mktime_utc(&t);
else
retval = mktime(&t);
if (tm != NULL)
*tm = t;
if (tzoff != PURPLE_NO_TZ_OFF)
retval -= tzoff;
if (tz_off != NULL)
*tz_off = tzoff;
return retval;
}
GDateTime *
purple_str_to_date_time(const char *timestamp, gboolean utc)
{
const gchar *str;
gint year = 0;
gint month = 0;
gint day = 0;
gint hour = 0;
gint minute = 0;
gint seconds = 0;
gint microseconds = 0;
int chars = 0;
GTimeZone *tz = NULL;
GDateTime *retval;
g_return_val_if_fail(timestamp != NULL, NULL);
str = timestamp;
/* Strip leading whitespace */
while (g_ascii_isspace(*str))
str++;
if (*str == '\0') {
return NULL;
}
if (!g_ascii_isdigit(*str) && *str != '-' && *str != '+') {
return NULL;
}
/* 4 digit year */
if (sscanf(str, "%04d", &year) && year > 0) {
str += 4;
if (*str == '-' || *str == '/')
str++;
}
/* 2 digit month */
if (!sscanf(str, "%02d", &month)) {
return NULL;
}
str += 2;
if (*str == '-' || *str == '/')
str++;
/* 2 digit day */
if (!sscanf(str, "%02d", &day)) {
return NULL;
}
str += 2;
/* Grab the year off the end if there's still stuff */
if (*str == '/' || *str == '-') {
/* But make sure we don't read the year twice */
if (year > 0) {
return NULL;
}
str++;
if (!sscanf(str, "%04d", &year)) {
return NULL;
}
} else if (*str == 'T' || *str == '.') {
str++;
/* Continue grabbing the hours/minutes/seconds */
if ((sscanf(str, "%02d:%02d:%02d", &hour, &minute, &seconds) == 3 &&
(str += 8)) ||
(sscanf(str, "%02d%02d%02d", &hour, &minute, &seconds) == 3 &&
(str += 6)))
{
if (*str == '.') {
str++;
if (sscanf(str, "%d%n", &microseconds, &chars) == 1) {
str += chars;
}
}
if (*str) {
const gchar *end = str;
if (*end == '+' || *end == '-') {
end++;
}
while (isdigit(*end) || *end == ':') {
end++;
}
if (str != end) {
/* Trim anything trailing a purely numeric time zone. */
gchar *tzstr = g_strndup(str, end - str);
tz = g_time_zone_new(tzstr);
g_free(tzstr);
} else {
/* Just try whatever is there. */
tz = g_time_zone_new(str);
}
}
}
}
if (!tz) {
/* No timezone specified. */
if (utc) {
tz = g_time_zone_new_utc();
} else {
tz = g_time_zone_new_local();
}
}
retval = g_date_time_new(tz, year, month, day, hour, minute,
seconds + microseconds * pow(10, -chars));
g_time_zone_unref(tz);
return retval;
}
gint purple_time_parse_month(const char *month_abbr)
{
const char *months[] = {
"Jan", "Feb", "Mar", "Apr", "May", "Jun",
"Jul", "Aug", "Sep", "Oct", "Nov", "Dec",
NULL};
for (gint month = 0; months[month] != NULL; month++) {
if (purple_strequal(month_abbr, months[month])) {
return month + 1;
}
}
return 0;
}
/**************************************************************************
* Markup Functions
**************************************************************************/
/*
* This function is stolen from glib's gmarkup.c and modified to not
* replace ' with &apos;
*/
static void append_escaped_text(GString *str,
const gchar *text, gssize length)
{
const gchar *p;
const gchar *end;
gunichar c;
p = text;
end = text + length;
while (p != end)
{
const gchar *next;
next = g_utf8_next_char (p);
switch (*p)
{
case '&':
g_string_append (str, "&amp;");
break;
case '<':
g_string_append (str, "&lt;");
break;
case '>':
g_string_append (str, "&gt;");
break;
case '"':
g_string_append (str, "&quot;");
break;
default:
c = g_utf8_get_char (p);
if ((0x1 <= c && c <= 0x8) ||
(0xb <= c && c <= 0xc) ||
(0xe <= c && c <= 0x1f) ||
(0x7f <= c && c <= 0x84) ||
(0x86 <= c && c <= 0x9f))
g_string_append_printf (str, "&#x%x;", c);
else
g_string_append_len (str, p, next - p);
break;
}
p = next;
}
}
/* This function is stolen from glib's gmarkup.c */
gchar *purple_markup_escape_text(const gchar *text, gssize length)
{
GString *str;
g_return_val_if_fail(text != NULL, NULL);
if (length < 0)
length = strlen(text);
/* prealloc at least as long as original text */
str = g_string_sized_new(length);
append_escaped_text(str, text, length);
return g_string_free(str, FALSE);
}
const char *
purple_markup_unescape_entity(const char *text, int *length)
{
const char *pln;
int len;
if (!text || *text != '&')
return NULL;
#define IS_ENTITY(s) (!g_ascii_strncasecmp(text, s, (len = sizeof(s) - 1)))
if(IS_ENTITY("&amp;"))
pln = "&";
else if(IS_ENTITY("&lt;"))
pln = "<";
else if(IS_ENTITY("&gt;"))
pln = ">";
else if(IS_ENTITY("&nbsp;"))
pln = " ";
else if(IS_ENTITY("&copy;"))
pln = "\302\251"; /* or use g_unichar_to_utf8(0xa9); */
else if(IS_ENTITY("&quot;"))
pln = "\"";
else if(IS_ENTITY("&reg;"))
pln = "\302\256"; /* or use g_unichar_to_utf8(0xae); */
else if(IS_ENTITY("&apos;"))
pln = "\'";
else if(text[1] == '#' && (g_ascii_isxdigit(text[2]) || text[2] == 'x')) {
static char buf[7];
const char *start = text + 2;
char *end;
guint64 pound;
int base = 10;
int buflen;
if (*start == 'x') {
base = 16;
start++;
}
pound = g_ascii_strtoull(start, &end, base);
if (pound == 0 || pound > INT_MAX || *end != ';') {
return NULL;
}
len = (end - text) + 1;
buflen = g_unichar_to_utf8((gunichar)pound, buf);
buf[buflen] = '\0';
pln = buf;
}
else
return NULL;
if (length)
*length = len;
return pln;
}
char *
purple_markup_get_css_property(const gchar *style,
const gchar *opt)
{
const gchar *css_str = style;
const gchar *css_value_start;
const gchar *css_value_end;
gchar *tmp;
gchar *ret;
g_return_val_if_fail(opt != NULL, NULL);
if (!css_str)
return NULL;
/* find the CSS property */
while (1)
{
/* skip whitespace characters */
while (*css_str && g_ascii_isspace(*css_str))
css_str++;
if (!g_ascii_isalpha(*css_str))
return NULL;
if (g_ascii_strncasecmp(css_str, opt, strlen(opt)))
{
/* go to next css property positioned after the next ';' */
while (*css_str && *css_str != '"' && *css_str != ';')
css_str++;
if(*css_str != ';')
return NULL;
css_str++;
}
else
break;
}
/* find the CSS value position in the string */
css_str += strlen(opt);
while (*css_str && g_ascii_isspace(*css_str))
css_str++;
if (*css_str != ':')
return NULL;
css_str++;
while (*css_str && g_ascii_isspace(*css_str))
css_str++;
if (*css_str == '\0' || *css_str == '"' || *css_str == ';')
return NULL;
/* mark the CSS value */
css_value_start = css_str;
while (*css_str && *css_str != '"' && *css_str != ';')
css_str++;
css_value_end = css_str - 1;
/* Removes trailing whitespace */
while (css_value_end > css_value_start && g_ascii_isspace(*css_value_end))
css_value_end--;
tmp = g_strndup(css_value_start, css_value_end - css_value_start + 1);
ret = purple_unescape_html(tmp);
g_free(tmp);
return ret;
}
gboolean purple_markup_is_rtl(const char *html)
{
GData *attributes;
const gchar *start, *end;
gboolean res = FALSE;
if (purple_markup_find_tag("span", html, &start, &end, &attributes))
{
/* tmp is a member of attributes and is free with g_datalist_clear call */
const char *tmp = g_datalist_get_data(&attributes, "dir");
if (tmp && !g_ascii_strcasecmp(tmp, "RTL"))
res = TRUE;
if (!res)
{
tmp = g_datalist_get_data(&attributes, "style");
if (tmp)
{
char *tmp2 = purple_markup_get_css_property(tmp, "direction");
if (tmp2 && !g_ascii_strcasecmp(tmp2, "RTL"))
res = TRUE;
g_free(tmp2);
}
}
g_datalist_clear(&attributes);
}
return res;
}
gboolean
purple_markup_find_tag(const char *needle, const char *haystack,
const char **start, const char **end, GData **attributes)
{
GData *attribs;
const char *cur = haystack;
char *name = NULL;
gboolean found = FALSE;
gboolean in_tag = FALSE;
gboolean in_attr = FALSE;
const char *in_quotes = NULL;
size_t needlelen;
g_return_val_if_fail( needle != NULL, FALSE);
g_return_val_if_fail( *needle != '\0', FALSE);
g_return_val_if_fail( haystack != NULL, FALSE);
g_return_val_if_fail( start != NULL, FALSE);
g_return_val_if_fail( end != NULL, FALSE);
g_return_val_if_fail(attributes != NULL, FALSE);
needlelen = strlen(needle);
g_datalist_init(&attribs);
while (*cur && !found) {
if (in_tag) {
if (in_quotes) {
const char *close = cur;
while (*close && *close != *in_quotes)
close++;
/* if we got the close quote, store the value and carry on from *
* after it. if we ran to the end of the string, point to the NULL *
* and we're outta here */
if (*close) {
/* only store a value if we have an attribute name */
if (name) {
size_t len = close - cur;
char *val = g_strndup(cur, len);
g_datalist_set_data_full(&attribs, name, val, g_free);
g_free(name);
name = NULL;
}
in_quotes = NULL;
cur = close + 1;
} else {
cur = close;
}
} else if (in_attr) {
const char *close = cur;
while (*close && *close != '>' && *close != '"' &&
*close != '\'' && *close != ' ' && *close != '=')
close++;
/* if we got the equals, store the name of the attribute. if we got
* the quote, save the attribute and go straight to quote mode.
* otherwise the tag closed or we reached the end of the string,
* so we can get outta here */
switch (*close) {
case '"':
case '\'':
in_quotes = close;
/* fall through */
case '=':
{
size_t len = close - cur;
/* don't store a blank attribute name */
if (len) {
g_free(name);
name = g_ascii_strdown(cur, len);
}
in_attr = FALSE;
cur = close + 1;
}
break;
case ' ':
case '>':
in_attr = FALSE;
/* fall through */
default:
cur = close;
break;
}
} else {
switch (*cur) {
case ' ':
/* swallow extra spaces inside tag */
while (*cur && *cur == ' ') cur++;
in_attr = TRUE;
break;
case '>':
found = TRUE;
*end = cur;
break;
case '"':
case '\'':
in_quotes = cur;
/* fall through */
default:
cur++;
break;
}
}
} else {
/* if we hit a < followed by the name of our tag... */
if (*cur == '<' && !g_ascii_strncasecmp(cur + 1, needle, needlelen)) {
*start = cur;
cur = cur + needlelen + 1;
/* if we're pointing at a space or a >, we found the right tag. if *
* we're not, we've found a longer tag, so we need to skip to the *
* >, but not being distracted by >s inside quotes. */
if (*cur == ' ' || *cur == '>') {
in_tag = TRUE;
} else {
while (*cur && *cur != '"' && *cur != '\'' && *cur != '>') {
if (*cur == '"') {
cur++;
while (*cur && *cur != '"')
cur++;
} else if (*cur == '\'') {
cur++;
while (*cur && *cur != '\'')
cur++;
} else {
cur++;
}
}
}
} else {
cur++;
}
}
}
/* clean up any attribute name from a premature termination */
g_free(name);
if (found) {
*attributes = attribs;
} else {
*start = NULL;
*end = NULL;
*attributes = NULL;
}
return found;
}
struct purple_parse_tag {
char *src_tag;
char *dest_tag;
gboolean ignore;
};
/* NOTE: Do not put `do {} while(0)` around this macro (as this is the method
recommended in the GCC docs). It contains 'continue's that should
affect the while-loop in purple_markup_html_to_xhtml and doing the
above would break that.
Also, remember to put braces in constructs that require them for
multiple statements when using this macro. */
#define ALLOW_TAG_ALT(x, y) if(!g_ascii_strncasecmp(c, "<" x " ", strlen("<" x " "))) { \
const char *o = c + strlen("<" x); \
const char *p = NULL, *q = NULL, *r = NULL; \
/* o = iterating over full tag \
* p = > (end of tag) \
* q = start of quoted bit \
* r = < inside tag \
*/ \
GString *innards = g_string_new(""); \
while(o && *o) { \
if(!q && (*o == '\"' || *o == '\'') ) { \
q = o; \
} else if(q) { \
if(*o == *q) { /* end of quoted bit */ \
char *unescaped = g_strndup(q+1, o-q-1); \
char *escaped = g_markup_escape_text(unescaped, -1); \
g_string_append_printf(innards, "%c%s%c", *q, escaped, *q); \
g_free(unescaped); \
g_free(escaped); \
q = NULL; \
} else if(*c == '\\') { \
o++; \
} \
} else if(*o == '<') { \
r = o; \
} else if(*o == '>') { \
p = o; \
break; \
} else { \
innards = g_string_append_c(innards, *o); \
} \
o++; \
} \
if(p && !r) { /* got an end of tag and no other < earlier */\
if(*(p-1) != '/') { \
struct purple_parse_tag *pt = g_new0(struct purple_parse_tag, 1); \
pt->src_tag = x; \
pt->dest_tag = y; \
tags = g_list_prepend(tags, pt); \
} \
if(xhtml) { \
xhtml = g_string_append(xhtml, "<" y); \
xhtml = g_string_append(xhtml, innards->str); \
xhtml = g_string_append_c(xhtml, '>'); \
} \
c = p + 1; \
} else { /* got end of tag with earlier < *or* didn't get anything */ \
if(xhtml) \
xhtml = g_string_append(xhtml, "&lt;"); \
if(plain) \
plain = g_string_append_c(plain, '<'); \
c++; \
} \
g_string_free(innards, TRUE); \
continue; \
} \
if(!g_ascii_strncasecmp(c, "<" x, strlen("<" x)) && \
(*(c+strlen("<" x)) == '>' || \
!g_ascii_strncasecmp(c+strlen("<" x), "/>", 2))) { \
if(xhtml) \
xhtml = g_string_append(xhtml, "<" y); \
c += strlen("<" x); \
if(*c != '/') { \
struct purple_parse_tag *pt = g_new0(struct purple_parse_tag, 1); \
pt->src_tag = x; \
pt->dest_tag = y; \
tags = g_list_prepend(tags, pt); \
if(xhtml) \
xhtml = g_string_append_c(xhtml, '>'); \
} else { \
if(xhtml) \
xhtml = g_string_append(xhtml, "/>");\
} \
c = strchr(c, '>') + 1; \
continue; \
}
/* Don't forget to check the note above for ALLOW_TAG_ALT. */
#define ALLOW_TAG(x) ALLOW_TAG_ALT(x, x)
void
purple_markup_html_to_xhtml(const char *html, char **xhtml_out,
char **plain_out)
{
GString *xhtml = NULL;
GString *plain = NULL;
GString *url = NULL;
GString *cdata = NULL;
GList *tags = NULL, *tag;
const char *c = html;
char quote = '\0';
#define CHECK_QUOTE(ptr) if (*(ptr) == '\'' || *(ptr) == '\"') \
quote = *(ptr++); \
else \
quote = '\0';
#define VALID_CHAR(ptr) (*(ptr) && *(ptr) != quote && (quote || (*(ptr) != ' ' && *(ptr) != '>')))
g_return_if_fail(xhtml_out != NULL || plain_out != NULL);
if(xhtml_out)
xhtml = g_string_new("");
if(plain_out)
plain = g_string_new("");
while(c && *c) {
if(*c == '<') {
if(*(c+1) == '/') { /* closing tag */
tag = tags;
while(tag) {
struct purple_parse_tag *pt = tag->data;
if(!g_ascii_strncasecmp((c+2), pt->src_tag, strlen(pt->src_tag)) && *(c+strlen(pt->src_tag)+2) == '>') {
c += strlen(pt->src_tag) + 3;
break;
}
tag = tag->next;
}
if(tag) {
while(tags) {
struct purple_parse_tag *pt = tags->data;
if(xhtml && !pt->ignore)
g_string_append_printf(xhtml, "</%s>", pt->dest_tag);
if(plain && purple_strequal(pt->src_tag, "a")) {
/* if this is a link, we have to add the url to the plaintext, too */
if (cdata && url &&
(!g_string_equal(cdata, url) && (g_ascii_strncasecmp(url->str, "mailto:", 7) != 0 ||
g_utf8_collate(url->str + 7, cdata->str) != 0)))
g_string_append_printf(plain, " <%s>", g_strstrip(purple_unescape_html(url->str)));
if (cdata) {
g_string_free(cdata, TRUE);
cdata = NULL;
}
}
if(tags == tag)
break;
tags = g_list_delete_link(tags, tags);
g_free(pt);
}
g_free(tag->data);
tags = g_list_delete_link(tags, tag);
} else {
/* a closing tag we weren't expecting...
* we'll let it slide, if it's really a tag...if it's
* just a </ we'll escape it properly */
const char *end = c+2;
while(*end && g_ascii_isalpha(*end))
end++;
if(*end == '>') {
c = end+1;
} else {
if(xhtml)
xhtml = g_string_append(xhtml, "&lt;");
if(plain)
plain = g_string_append_c(plain, '<');
c++;
}
}
} else { /* opening tag */
ALLOW_TAG("blockquote");
ALLOW_TAG("cite");
ALLOW_TAG("div");
ALLOW_TAG("em");
ALLOW_TAG("h1");
ALLOW_TAG("h2");
ALLOW_TAG("h3");
ALLOW_TAG("h4");
ALLOW_TAG("h5");
ALLOW_TAG("h6");
/* we only allow html to start the message */
if(c == html) {
ALLOW_TAG("html");
}
ALLOW_TAG_ALT("i", "em");
ALLOW_TAG_ALT("italic", "em");
ALLOW_TAG("li");
ALLOW_TAG("ol");
ALLOW_TAG("p");
ALLOW_TAG("pre");
ALLOW_TAG("q");
ALLOW_TAG("span");
ALLOW_TAG("ul");
/* we skip <HR> because it's not legal in XHTML-IM. However,
* we still want to send something sensible, so we put a
* linebreak in its place. <BR> also needs special handling
* because putting a </BR> to close it would just be dumb. */
if((!g_ascii_strncasecmp(c, "<br", 3)
|| !g_ascii_strncasecmp(c, "<hr", 3))
&& (*(c+3) == '>' ||
!g_ascii_strncasecmp(c+3, "/>", 2) ||
!g_ascii_strncasecmp(c+3, " />", 3))) {
c = strchr(c, '>') + 1;
if(xhtml)
xhtml = g_string_append(xhtml, "<br/>");
if(plain && *c != '\n')
plain = g_string_append_c(plain, '\n');
continue;
}
if(!g_ascii_strncasecmp(c, "<b>", 3) || !g_ascii_strncasecmp(c, "<bold>", strlen("<bold>")) || !g_ascii_strncasecmp(c, "<strong>", strlen("<strong>"))) {
struct purple_parse_tag *pt = g_new0(struct purple_parse_tag, 1);
if (*(c+2) == '>')
pt->src_tag = "b";
else if (*(c+2) == 'o')
pt->src_tag = "bold";
else
pt->src_tag = "strong";
pt->dest_tag = "span";
tags = g_list_prepend(tags, pt);
c = strchr(c, '>') + 1;
if(xhtml)
xhtml = g_string_append(xhtml, "<span style='font-weight: bold;'>");
continue;
}
if(!g_ascii_strncasecmp(c, "<u>", 3) || !g_ascii_strncasecmp(c, "<underline>", strlen("<underline>"))) {
struct purple_parse_tag *pt = g_new0(struct purple_parse_tag, 1);
pt->src_tag = *(c+2) == '>' ? "u" : "underline";
pt->dest_tag = "span";
tags = g_list_prepend(tags, pt);
c = strchr(c, '>') + 1;
if (xhtml)
xhtml = g_string_append(xhtml, "<span style='text-decoration: underline;'>");
continue;
}
if(!g_ascii_strncasecmp(c, "<s>", 3) || !g_ascii_strncasecmp(c, "<strike>", strlen("<strike>"))) {
struct purple_parse_tag *pt = g_new0(struct purple_parse_tag, 1);
pt->src_tag = *(c+2) == '>' ? "s" : "strike";
pt->dest_tag = "span";
tags = g_list_prepend(tags, pt);
c = strchr(c, '>') + 1;
if(xhtml)
xhtml = g_string_append(xhtml, "<span style='text-decoration: line-through;'>");
continue;
}
if(!g_ascii_strncasecmp(c, "<sub>", 5)) {
struct purple_parse_tag *pt = g_new0(struct purple_parse_tag, 1);
pt->src_tag = "sub";
pt->dest_tag = "span";
tags = g_list_prepend(tags, pt);
c = strchr(c, '>') + 1;
if(xhtml)
xhtml = g_string_append(xhtml, "<span style='vertical-align:sub;'>");
continue;
}
if(!g_ascii_strncasecmp(c, "<sup>", 5)) {
struct purple_parse_tag *pt = g_new0(struct purple_parse_tag, 1);
pt->src_tag = "sup";
pt->dest_tag = "span";
tags = g_list_prepend(tags, pt);
c = strchr(c, '>') + 1;
if(xhtml)
xhtml = g_string_append(xhtml, "<span style='vertical-align:super;'>");
continue;
}
if (!g_ascii_strncasecmp(c, "<img", 4) && (*(c+4) == '>' || *(c+4) == ' ')) {
const char *p = c + 4;
GString *src = NULL, *alt = NULL;
#define ESCAPE(from, to) \
CHECK_QUOTE(from); \
while (VALID_CHAR(from)) { \
int len; \
if ((*from == '&') && (purple_markup_unescape_entity(from, &len) == NULL)) \
to = g_string_append(to, "&amp;"); \
else if (*from == '\'') \
to = g_string_append(to, "&apos;"); \
else \
to = g_string_append_c(to, *from); \
from++; \
}
while (*p && *p != '>') {
if (!g_ascii_strncasecmp(p, "src=", 4)) {
const char *q = p + 4;
if (src)
g_string_free(src, TRUE);
src = g_string_new("");
ESCAPE(q, src);
p = q;
} else if (!g_ascii_strncasecmp(p, "alt=", 4)) {
const char *q = p + 4;
if (alt)
g_string_free(alt, TRUE);
alt = g_string_new("");
ESCAPE(q, alt);
p = q;
} else {
p++;
}
}
#undef ESCAPE
if ((c = strchr(p, '>')) != NULL)
c++;
else
c = p;
/* src and alt are required! */
if(src && xhtml)
g_string_append_printf(xhtml, "<img src='%s' alt='%s' />", g_strstrip(src->str), alt ? alt->str : "");
if(alt) {
if(plain)
plain = g_string_append(plain, purple_unescape_html(alt->str));
if(!src && xhtml)
xhtml = g_string_append(xhtml, alt->str);
g_string_free(alt, TRUE);
}
g_string_free(src, TRUE);
continue;
}
if (!g_ascii_strncasecmp(c, "<a", 2) && (*(c+2) == '>' || *(c+2) == ' ')) {
const char *p = c + 2;
struct purple_parse_tag *pt;
while (*p && *p != '>') {
if (!g_ascii_strncasecmp(p, "href=", 5)) {
const char *q = p + 5;
if (url)
g_string_free(url, TRUE);
url = g_string_new("");
if (cdata)
g_string_free(cdata, TRUE);
cdata = g_string_new("");
CHECK_QUOTE(q);
while (VALID_CHAR(q)) {
int len;
if ((*q == '&') && (purple_markup_unescape_entity(q, &len) == NULL))
url = g_string_append(url, "&amp;");
else if (*q == '"')
url = g_string_append(url, "&quot;");
else
url = g_string_append_c(url, *q);
q++;
}
p = q;
} else {
p++;
}
}
if ((c = strchr(p, '>')) != NULL)
c++;
else
c = p;
pt = g_new0(struct purple_parse_tag, 1);
pt->src_tag = "a";
pt->dest_tag = "a";
tags = g_list_prepend(tags, pt);
if(xhtml)
g_string_append_printf(xhtml, "<a href=\"%s\">", url ? g_strstrip(url->str) : "");
continue;
}
#define ESCAPE(from, to) \
CHECK_QUOTE(from); \
while (VALID_CHAR(from)) { \
int len; \
if ((*from == '&') && (purple_markup_unescape_entity(from, &len) == NULL)) \
to = g_string_append(to, "&amp;"); \
else if (*from == '\'') \
to = g_string_append_c(to, '\"'); \
else \
to = g_string_append_c(to, *from); \
from++; \
}
if(!g_ascii_strncasecmp(c, "<font", 5) && (*(c+5) == '>' || *(c+5) == ' ')) {
const char *p = c + 5;
GString *style = g_string_new("");
struct purple_parse_tag *pt;
while (*p && *p != '>') {
if (!g_ascii_strncasecmp(p, "back=", 5)) {
const char *q = p + 5;
GString *color = g_string_new("");
ESCAPE(q, color);
g_string_append_printf(style, "background: %s; ", color->str);
g_string_free(color, TRUE);
p = q;
} else if (!g_ascii_strncasecmp(p, "color=", 6)) {
const char *q = p + 6;
GString *color = g_string_new("");
ESCAPE(q, color);
g_string_append_printf(style, "color: %s; ", color->str);
g_string_free(color, TRUE);
p = q;
} else if (!g_ascii_strncasecmp(p, "face=", 5)) {
const char *q = p + 5;
GString *face = g_string_new("");
ESCAPE(q, face);
g_string_append_printf(style, "font-family: %s; ", g_strstrip(face->str));
g_string_free(face, TRUE);
p = q;
} else if (!g_ascii_strncasecmp(p, "size=", 5)) {
const char *q = p + 5;
int sz;
const char *size = "medium";
CHECK_QUOTE(q);
sz = atoi(q);
switch (sz)
{
case 1:
size = "xx-small";
break;
case 2:
size = "small";
break;
case 3:
size = "medium";
break;
case 4:
size = "large";
break;
case 5:
size = "x-large";
break;
case 6:
case 7:
size = "xx-large";
break;
default:
break;
}
g_string_append_printf(style, "font-size: %s; ", size);
p = q;
} else {
p++;
}
}
if ((c = strchr(p, '>')) != NULL)
c++;
else
c = p;
pt = g_new0(struct purple_parse_tag, 1);
pt->src_tag = "font";
pt->dest_tag = "span";
tags = g_list_prepend(tags, pt);
if(style->len && xhtml)
g_string_append_printf(xhtml, "<span style='%s'>", g_strstrip(style->str));
else
pt->ignore = TRUE;
g_string_free(style, TRUE);
continue;
}
#undef ESCAPE
if (!g_ascii_strncasecmp(c, "<body ", 6)) {
const char *p = c + 6;
gboolean did_something = FALSE;
while (*p && *p != '>') {
if (!g_ascii_strncasecmp(p, "bgcolor=", 8)) {
const char *q = p + 8;
struct purple_parse_tag *pt = g_new0(struct purple_parse_tag, 1);
GString *color = g_string_new("");
CHECK_QUOTE(q);
while (VALID_CHAR(q)) {
color = g_string_append_c(color, *q);
q++;
}
if (xhtml)
g_string_append_printf(xhtml, "<span style='background: %s;'>", g_strstrip(color->str));
g_string_free(color, TRUE);
if ((c = strchr(p, '>')) != NULL)
c++;
else
c = p;
pt->src_tag = "body";
pt->dest_tag = "span";
tags = g_list_prepend(tags, pt);
did_something = TRUE;
break;
}
p++;
}
if (did_something) continue;
}
/* this has to come after the special case for bgcolor */
ALLOW_TAG("body");
if(!g_ascii_strncasecmp(c, "<!--", strlen("<!--"))) {
char *p = strstr(c + strlen("<!--"), "-->");
if(p) {
if(xhtml)
xhtml = g_string_append(xhtml, "<!--");
c += strlen("<!--");
continue;
}
}
if(xhtml)
xhtml = g_string_append(xhtml, "&lt;");
if(plain)
plain = g_string_append_c(plain, '<');
c++;
}
} else if(*c == '&') {
char buf[7];
const char *pln;
int len;
if ((pln = purple_markup_unescape_entity(c, &len)) == NULL) {
len = 1;
g_snprintf(buf, sizeof(buf), "%c", *c);
pln = buf;
}
if(xhtml)
xhtml = g_string_append_len(xhtml, c, len);
if(plain)
plain = g_string_append(plain, pln);
if(cdata)
cdata = g_string_append_len(cdata, c, len);
c += len;
} else {
if(xhtml)
xhtml = g_string_append_c(xhtml, *c);
if(plain)
plain = g_string_append_c(plain, *c);
if(cdata)
cdata = g_string_append_c(cdata, *c);
c++;
}
}
if(xhtml) {
for (tag = tags; tag ; tag = tag->next) {
struct purple_parse_tag *pt = tag->data;
if(!pt->ignore)
g_string_append_printf(xhtml, "</%s>", pt->dest_tag);
}
}
g_list_free(tags);
if(xhtml_out)
*xhtml_out = g_string_free(xhtml, FALSE);
if(plain_out)
*plain_out = g_string_free(plain, FALSE);
if(url)
g_string_free(url, TRUE);
if (cdata)
g_string_free(cdata, TRUE);
#undef CHECK_QUOTE
#undef VALID_CHAR
}
/* The following are probably reasonable changes:
* - \n should be converted to a normal space
* - in addition to <br>, <p> and <div> etc. should also be converted into \n
* - We want to turn </td>#whitespace<td> sequences into a single tab
* - We want to turn </tr>#whitespace<tr> sequences into a single \n
* - <script>...</script> and <style>...</style> should be completely removed
*/
char *
purple_markup_strip_html(const char *str)
{
int i, j, k, entlen;
gboolean visible = TRUE;
gboolean closing_td_p = FALSE;
gchar *str2;
const gchar *cdata_close_tag = NULL, *ent;
gchar *href = NULL;
int href_st = 0;
if(!str)
return NULL;
str2 = g_strdup(str);
for (i = 0, j = 0; str2[i]; i++)
{
if (str2[i] == '<')
{
if (cdata_close_tag)
{
/* Note: Don't even assume any other tag is a tag in CDATA */
if (g_ascii_strncasecmp(str2 + i, cdata_close_tag,
strlen(cdata_close_tag)) == 0)
{
i += strlen(cdata_close_tag) - 1;
cdata_close_tag = NULL;
}
continue;
}
else if (g_ascii_strncasecmp(str2 + i, "<td", 3) == 0 && closing_td_p)
{
str2[j++] = '\t';
visible = TRUE;
}
else if (g_ascii_strncasecmp(str2 + i, "</td>", 5) == 0)
{
closing_td_p = TRUE;
visible = FALSE;
}
else
{
closing_td_p = FALSE;
visible = TRUE;
}
k = i + 1;
if(g_ascii_isspace(str2[k]))
visible = TRUE;
else if (str2[k])
{
/* Scan until we end the tag either implicitly (closed start
* tag) or explicitly, using a sloppy method (i.e., < or >
* inside quoted attributes will screw us up)
*/
while (str2[k] && str2[k] != '<' && str2[k] != '>')
{
k++;
}
/* If we've got an <a> tag with an href, save the address
* to print later. */
if (g_ascii_strncasecmp(str2 + i, "<a", 2) == 0 &&
g_ascii_isspace(str2[i+2]))
{
int st; /* start of href, inclusive [ */
int end; /* end of href, exclusive ) */
char delim = ' ';
/* Find start of href */
for (st = i + 3; st < k; st++)
{
if (g_ascii_strncasecmp(str2+st, "href=", 5) == 0)
{
st += 5;
if (str2[st] == '"' || str2[st] == '\'')
{
delim = str2[st];
st++;
}
break;
}
}
/* find end of address */
for (end = st; end < k && str2[end] != delim; end++)
{
/* All the work is done in the loop construct above. */
}
/* If there's an address, save it. If there was
* already one saved, kill it. */
if (st < k)
{
char *tmp;
g_free(href);
tmp = g_strndup(str2 + st, end - st);
href = purple_unescape_html(tmp);
g_free(tmp);
href_st = j;
}
}
/* Replace </a> with an ascii representation of the
* address the link was pointing to. */
else if (href != NULL && g_ascii_strncasecmp(str2 + i, "</a>", 4) == 0)
{
size_t hrlen = strlen(href);
/* Only insert the href if it's different from the CDATA. */
if ((hrlen != (gsize)(j - href_st) ||
strncmp(str2 + href_st, href, hrlen)) &&
(hrlen != (gsize)(j - href_st + 7) || /* 7 == strlen("http://") */
strncmp(str2 + href_st, href + 7, hrlen - 7)))
{
str2[j++] = ' ';
str2[j++] = '(';
memmove(str2 + j, href, hrlen);
j += hrlen;
str2[j++] = ')';
g_free(href);
href = NULL;
}
}
/* Check for tags which should be mapped to newline (but ignore some of
* the tags at the beginning of the text) */
else if ((j && (g_ascii_strncasecmp(str2 + i, "<p>", 3) == 0
|| g_ascii_strncasecmp(str2 + i, "<tr", 3) == 0
|| g_ascii_strncasecmp(str2 + i, "<hr", 3) == 0
|| g_ascii_strncasecmp(str2 + i, "<li", 3) == 0
|| g_ascii_strncasecmp(str2 + i, "<div", 4) == 0))
|| g_ascii_strncasecmp(str2 + i, "<br", 3) == 0
|| g_ascii_strncasecmp(str2 + i, "</table>", 8) == 0)
{
str2[j++] = '\n';
}
/* Check for tags which begin CDATA and need to be closed */
else if (g_ascii_strncasecmp(str2 + i, "<script", 7) == 0)
{
cdata_close_tag = "</script>";
}
else if (g_ascii_strncasecmp(str2 + i, "<style", 6) == 0)
{
cdata_close_tag = "</style>";
}
/* Update the index and continue checking after the tag */
i = (str2[k] == '<' || str2[k] == '\0')? k - 1: k;
continue;
}
}
else if (cdata_close_tag)
{
continue;
}
else if (!g_ascii_isspace(str2[i]))
{
visible = TRUE;
}
if (str2[i] == '&' && (ent = purple_markup_unescape_entity(str2 + i, &entlen)) != NULL)
{
while (*ent)
str2[j++] = *ent++;
i += entlen - 1;
continue;
}
if (visible)
str2[j++] = g_ascii_isspace(str2[i])? ' ': str2[i];
}
g_free(href);
str2[j] = '\0';
return str2;
}
static gboolean
badchar(char c)
{
switch (c) {
case ' ':
case ',':
case '\0':
case '\n':
case '\r':
case '<':
case '>':
case '"':
return TRUE;
default:
return FALSE;
}
}
static gboolean
badentity(const char *c)
{
if (!g_ascii_strncasecmp(c, "&lt;", 4) ||
!g_ascii_strncasecmp(c, "&gt;", 4) ||
!g_ascii_strncasecmp(c, "&quot;", 6)) {
return TRUE;
}
return FALSE;
}
static const char *
process_link(GString *ret,
const char *start, const char *c,
int matchlen,
const char *urlprefix,
int inside_paren)
{
char *url_buf, *tmpurlbuf;
const char *t;
for (t = c;; t++) {
if (!badchar(*t) && !badentity(t))
continue;
if (t - c == matchlen)
break;
if (*t == ',' && *(t + 1) != ' ') {
continue;
}
if (t > start && *(t - 1) == '.')
t--;
if (t > start && *(t - 1) == ')' && inside_paren > 0)
t--;
url_buf = g_strndup(c, t - c);
tmpurlbuf = purple_unescape_html(url_buf);
g_string_append_printf(ret, "<A HREF=\"%s%s\">%s</A>",
urlprefix,
tmpurlbuf, url_buf);
g_free(tmpurlbuf);
g_free(url_buf);
return t;
}
return c;
}
char *
purple_markup_linkify(const char *text)
{
const char *c, *t, *q = NULL;
char *tmpurlbuf, *url_buf;
gunichar g;
gboolean inside_html = FALSE;
int inside_paren = 0;
GString *ret;
if (text == NULL)
return NULL;
ret = g_string_new("");
c = text;
while (*c) {
if(*c == '(' && !inside_html) {
inside_paren++;
ret = g_string_append_c(ret, *c);
c++;
}
if(inside_html) {
if(*c == '>') {
inside_html = FALSE;
} else if(!q && (*c == '\"' || *c == '\'')) {
q = c;
} else if(q) {
if(*c == *q)
q = NULL;
}
} else if(*c == '<') {
inside_html = TRUE;
if (!g_ascii_strncasecmp(c, "<A", 2)) {
while (1) {
if (!g_ascii_strncasecmp(c, "/A>", 3)) {
inside_html = FALSE;
break;
}
ret = g_string_append_c(ret, *c);
c++;
if (!(*c))
break;
}
}
} else if (!g_ascii_strncasecmp(c, "http://", 7)) {
c = process_link(ret, text, c, 7, "", inside_paren);
} else if (!g_ascii_strncasecmp(c, "https://", 8)) {
c = process_link(ret, text, c, 8, "", inside_paren);
} else if (!g_ascii_strncasecmp(c, "ftp://", 6)) {
c = process_link(ret, text, c, 6, "", inside_paren);
} else if (!g_ascii_strncasecmp(c, "sftp://", 7)) {
c = process_link(ret, text, c, 7, "", inside_paren);
} else if (!g_ascii_strncasecmp(c, "file://", 7)) {
c = process_link(ret, text, c, 7, "", inside_paren);
} else if (!g_ascii_strncasecmp(c, "www.", 4) && c[4] != '.' && (c == text || badchar(c[-1]) || badentity(c-1))) {
c = process_link(ret, text, c, 4, "http://", inside_paren);
} else if (!g_ascii_strncasecmp(c, "ftp.", 4) && c[4] != '.' && (c == text || badchar(c[-1]) || badentity(c-1))) {
c = process_link(ret, text, c, 4, "ftp://", inside_paren);
} else if (!g_ascii_strncasecmp(c, "xmpp:", 5) && (c == text || badchar(c[-1]) || badentity(c-1))) {
c = process_link(ret, text, c, 5, "", inside_paren);
} else if (!g_ascii_strncasecmp(c, "mailto:", 7)) {
t = c;
while (1) {
if (badchar(*t) || badentity(t)) {
char *d;
if (t - c == 7) {
break;
}
if (t > text && *(t - 1) == '.')
t--;
if ((d = strstr(c + 7, "?")) != NULL && d < t)
url_buf = g_strndup(c + 7, d - c - 7);
else
url_buf = g_strndup(c + 7, t - c - 7);
if (!purple_email_is_valid(url_buf)) {
g_free(url_buf);
break;
}
g_free(url_buf);
url_buf = g_strndup(c, t - c);
tmpurlbuf = purple_unescape_html(url_buf);
g_string_append_printf(ret, "<A HREF=\"%s\">%s</A>",
tmpurlbuf, url_buf);
g_free(url_buf);
g_free(tmpurlbuf);
c = t;
break;
}
t++;
}
} else if (c != text && (*c == '@')) {
int flag;
GString *gurl_buf = NULL;
const char illegal_chars[] = "!@#$%^&*()[]{}/|\\<>\":;\r\n \0";
if (strchr(illegal_chars,*(c - 1)) || strchr(illegal_chars, *(c + 1)))
flag = 0;
else {
flag = 1;
gurl_buf = g_string_new("");
}
t = c;
while (flag) {
/* iterate backwards grabbing the local part of an email address */
g = g_utf8_get_char(t);
if (badchar(*t) || (g >= 127) || (*t == '(') ||
((*t == ';') && ((t > (text+2) && (!g_ascii_strncasecmp(t - 3, "&lt;", 4) ||
!g_ascii_strncasecmp(t - 3, "&gt;", 4))) ||
(t > (text+4) && (!g_ascii_strncasecmp(t - 5, "&quot;", 6)))))) {
/* local part will already be part of ret, strip it out */
ret = g_string_truncate(ret, ret->len - (c - t));
ret = g_string_append_unichar(ret, g);
break;
} else {
g_string_prepend_unichar(gurl_buf, g);
t = g_utf8_find_prev_char(text, t);
if (t < text) {
ret = g_string_assign(ret, "");
break;
}
}
}
t = g_utf8_find_next_char(c, NULL);
while (flag) {
/* iterate forwards grabbing the domain part of an email address */
g = g_utf8_get_char(t);
if (badchar(*t) || (g >= 127) || (*t == ')') || badentity(t)) {
char *d;
url_buf = g_string_free(gurl_buf, FALSE);
gurl_buf = NULL;
/* strip off trailing periods */
if (*url_buf) {
for (d = url_buf + strlen(url_buf) - 1; *d == '.'; d--, t--)
*d = '\0';
}
tmpurlbuf = purple_unescape_html(url_buf);
if (purple_email_is_valid(tmpurlbuf)) {
g_string_append_printf(ret, "<A HREF=\"mailto:%s\">%s</A>",
tmpurlbuf, url_buf);
} else {
g_string_append(ret, url_buf);
}
g_free(url_buf);
g_free(tmpurlbuf);
c = t;
break;
} else {
g_string_append_unichar(gurl_buf, g);
t = g_utf8_find_next_char(t, NULL);
}
}
if (gurl_buf) {
g_string_free(gurl_buf, TRUE);
}
}
if(*c == ')' && !inside_html) {
inside_paren--;
ret = g_string_append_c(ret, *c);
c++;
}
if (*c == 0)
break;
ret = g_string_append_c(ret, *c);
c++;
}
return g_string_free(ret, FALSE);
}
char *purple_unescape_text(const char *in)
{
GString *ret;
const char *c = in;
if (in == NULL)
return NULL;
ret = g_string_new("");
while (*c) {
int len;
const char *ent;
if ((ent = purple_markup_unescape_entity(c, &len)) != NULL) {
g_string_append(ret, ent);
c += len;
} else {
g_string_append_c(ret, *c);
c++;
}
}
return g_string_free(ret, FALSE);
}
char *purple_unescape_html(const char *html)
{
GString *ret;
const char *c = html;
if (html == NULL)
return NULL;
ret = g_string_new("");
while (*c) {
int len;
const char *ent;
if ((ent = purple_markup_unescape_entity(c, &len)) != NULL) {
g_string_append(ret, ent);
c += len;
} else if (!strncmp(c, "<br>", 4)) {
g_string_append_c(ret, '\n');
c += 4;
} else {
g_string_append_c(ret, *c);
c++;
}
}
return g_string_free(ret, FALSE);
}
char *
purple_markup_slice(const char *str, guint x, guint y)
{
GString *ret;
GQueue *q;
guint z = 0;
gboolean appended = FALSE;
gunichar c;
char *tag;
g_return_val_if_fail(str != NULL, NULL);
g_return_val_if_fail(x <= y, NULL);
if (x == y)
return g_strdup("");
ret = g_string_new("");
q = g_queue_new();
while (*str && (z < y)) {
c = g_utf8_get_char(str);
if (c == '<') {
char *end = strchr(str, '>');
if (!end) {
g_string_free(ret, TRUE);
while ((tag = g_queue_pop_head(q)))
g_free(tag);
g_queue_free(q);
return NULL;
}
if (!g_ascii_strncasecmp(str, "<img ", 5)) {
z += strlen("[Image]");
} else if (!g_ascii_strncasecmp(str, "<br", 3)) {
z += 1;
} else if (!g_ascii_strncasecmp(str, "<hr>", 4)) {
z += strlen("\n---\n");
} else if (!g_ascii_strncasecmp(str, "</", 2)) {
/* pop stack */
char *tmp;
tmp = g_queue_pop_head(q);
g_free(tmp);
/* z += 0; */
} else {
/* push it unto the stack */
char *tmp;
tmp = g_strndup(str, end - str + 1);
g_queue_push_head(q, tmp);
/* z += 0; */
}
if (z >= x) {
g_string_append_len(ret, str, end - str + 1);
}
str = end;
} else if (c == '&') {
char *end = strchr(str, ';');
if (!end) {
g_string_free(ret, TRUE);
while ((tag = g_queue_pop_head(q)))
g_free(tag);
g_queue_free(q);
return NULL;
}
if (z >= x)
g_string_append_len(ret, str, end - str + 1);
z++;
str = end;
} else {
if (z == x && z > 0 && !appended) {
GList *l = q->tail;
while (l) {
tag = l->data;
g_string_append(ret, tag);
l = l->prev;
}
appended = TRUE;
}
if (z >= x)
g_string_append_unichar(ret, c);
z++;
}
str = g_utf8_next_char(str);
}
while ((tag = g_queue_pop_head(q))) {
char *name;
name = purple_markup_get_tag_name(tag);
g_string_append_printf(ret, "</%s>", name);
g_free(name);
g_free(tag);
}
g_queue_free(q);
return g_string_free(ret, FALSE);
}
char *
purple_markup_get_tag_name(const char *tag)
{
int i;
g_return_val_if_fail(tag != NULL, NULL);
g_return_val_if_fail(*tag == '<', NULL);
for (i = 1; tag[i]; i++)
if (tag[i] == '>' || tag[i] == ' ' || tag[i] == '/')
break;
return g_strndup(tag+1, i-1);
}
/**************************************************************************
* Path/Filename Functions
**************************************************************************/
const char *
purple_home_dir(void)
{
#ifndef _WIN32
return g_get_home_dir();
#else
return wpurple_home_dir();
#endif
}
/* Returns the argument passed to -c IFF it was present, or ~/.purple. */
const char *
purple_user_dir(void)
{
if (custom_user_dir != NULL)
return custom_user_dir;
else if (!user_dir)
user_dir = g_build_filename(purple_home_dir(), ".purple", NULL);
return user_dir;
}
static const gchar *
purple_xdg_dir(gchar **xdg_dir, const gchar *xdg_base_dir, const gchar *xdg_type)
{
if (!*xdg_dir) {
if (!custom_user_dir) {
*xdg_dir = g_build_filename(xdg_base_dir, "purple", NULL);
} else {
*xdg_dir = g_build_filename(custom_user_dir, xdg_type, NULL);
}
}
return *xdg_dir;
}
const gchar *
purple_cache_dir(void)
{
return purple_xdg_dir(&cache_dir, g_get_user_cache_dir(), "cache");
}
const gchar *
purple_config_dir(void)
{
return purple_xdg_dir(&config_dir, g_get_user_config_dir(), "config");
}
const gchar *
purple_data_dir(void)
{
return purple_xdg_dir(&data_dir, g_get_user_data_dir(), "data");
}
gboolean
purple_move_to_xdg_base_dir(const char *purple_xdg_dir, char *path)
{
gint mkdir_res;
gchar *xdg_path;
gboolean xdg_path_exists;
/* Create destination directory */
mkdir_res = g_mkdir_with_parents(purple_xdg_dir, S_IRWXU);
if (mkdir_res == -1) {
purple_debug_error("util", "Error creating xdg directory %s: %s; failed migration\n",
purple_xdg_dir, g_strerror(errno));
return FALSE;
}
xdg_path = g_build_filename(purple_xdg_dir, path, NULL);
xdg_path_exists = g_file_test(xdg_path, G_FILE_TEST_EXISTS);
if (!xdg_path_exists) {
gchar *old_path;
gboolean old_path_exists;
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
old_path = g_build_filename(purple_user_dir(), path, NULL);
G_GNUC_END_IGNORE_DEPRECATIONS
old_path_exists = g_file_test(old_path, G_FILE_TEST_EXISTS);
if (old_path_exists) {
int rename_res;
rename_res = g_rename(old_path, xdg_path);
if (rename_res == -1) {
purple_debug_error("util", "Error renaming %s to %s; failed migration\n",
old_path, xdg_path);
g_free(old_path);
g_free(xdg_path);
return FALSE;
}
}
g_free(old_path);
}
g_free(xdg_path);
return TRUE;
}
void purple_util_set_user_dir(const char *dir)
{
g_free(custom_user_dir);
if (dir != NULL && *dir)
custom_user_dir = g_strdup(dir);
else
custom_user_dir = NULL;
}
static gboolean
purple_util_write_data_to_file_common(const char *dir, const char *filename, const char *data, gssize size)
{
gchar *filename_full;
gboolean ret = FALSE;
g_return_val_if_fail(dir != NULL, FALSE);
purple_debug_misc("util", "Writing file %s to directory %s",
filename, dir);
/* Ensure the directory exists */
if (!g_file_test(dir, G_FILE_TEST_IS_DIR))
{
if (g_mkdir(dir, S_IRUSR | S_IWUSR | S_IXUSR) == -1)
{
purple_debug_error("util", "Error creating directory %s: %s\n",
dir, g_strerror(errno));
return FALSE;
}
}
filename_full = g_build_filename(dir, filename, NULL);
ret = purple_util_write_data_to_file_absolute(filename_full, data, size);
g_free(filename_full);
return ret;
}
gboolean
purple_util_write_data_to_file(const char *filename, const char *data, gssize size)
{
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
const char *user_dir = purple_user_dir();
G_GNUC_END_IGNORE_DEPRECATIONS
gboolean ret = purple_util_write_data_to_file_common(user_dir, filename, data, size);
return ret;
}
gboolean
purple_util_write_data_to_cache_file(const char *filename, const char *data, gssize size)
{
const char *cache_dir = purple_cache_dir();
gboolean ret = purple_util_write_data_to_file_common(cache_dir, filename, data, size);
return ret;
}
gboolean
purple_util_write_data_to_config_file(const char *filename, const char *data, gssize size)
{
const char *config_dir = purple_config_dir();
gboolean ret = purple_util_write_data_to_file_common(config_dir, filename, data, size);
return ret;
}
gboolean
purple_util_write_data_to_data_file(const char *filename, const char *data, gssize size)
{
const char *data_dir = purple_data_dir();
gboolean ret = purple_util_write_data_to_file_common(data_dir, filename, data, size);
return ret;
}
gboolean
purple_util_write_data_to_file_absolute(const char *filename_full, const char *data, gssize size)
{
GFile *file;
GError *err = NULL;
g_return_val_if_fail(size >= -1, FALSE);
if (size == -1) {
size = strlen(data);
}
file = g_file_new_for_path(filename_full);
if (!g_file_replace_contents(file, data, size, NULL, FALSE,
G_FILE_CREATE_PRIVATE, NULL, NULL, &err)) {
purple_debug_error("util", "Error writing file: %s: %s\n",
filename_full, err->message);
g_clear_error(&err);
g_object_unref(file);
return FALSE;
}
g_object_unref(file);
return TRUE;
}
PurpleXmlNode *
purple_util_read_xml_from_file(const char *filename, const char *description)
{
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
return purple_xmlnode_from_file(purple_user_dir(), filename, description, "util");
G_GNUC_END_IGNORE_DEPRECATIONS
}
PurpleXmlNode *
purple_util_read_xml_from_cache_file(const char *filename, const char *description)
{
return purple_xmlnode_from_file(purple_cache_dir(), filename, description, "util");
}
PurpleXmlNode *
purple_util_read_xml_from_config_file(const char *filename, const char *description)
{
return purple_xmlnode_from_file(purple_config_dir(), filename, description, "util");
}
PurpleXmlNode *
purple_util_read_xml_from_data_file(const char *filename, const char *description)
{
return purple_xmlnode_from_file(purple_data_dir(), filename, description, "util");
}
/*
* Like mkstemp() but returns a file pointer, uses a pre-set template,
* uses the semantics of tempnam() for the directory to use and allocates
* the space for the filepath.
*
* Caller is responsible for closing the file and removing it when done,
* as well as freeing the space pointed-to by "path" with g_free().
*
* Returns NULL on failure and cleans up after itself if so.
*/
static const char *purple_mkstemp_templ = {"purpleXXXXXX"};
FILE *
purple_mkstemp(char **fpath, gboolean binary)
{
const gchar *tmpdir;
int fd;
FILE *fp = NULL;
g_return_val_if_fail(fpath != NULL, NULL);
if((tmpdir = (gchar*)g_get_tmp_dir()) != NULL) {
if((*fpath = g_strdup_printf("%s" G_DIR_SEPARATOR_S "%s", tmpdir, purple_mkstemp_templ)) != NULL) {
fd = g_mkstemp(*fpath);
if(fd == -1) {
purple_debug(PURPLE_DEBUG_ERROR, "purple_mkstemp",
"Couldn't make \"%s\", error: %d\n",
*fpath, errno);
} else {
if((fp = fdopen(fd, "r+")) == NULL) {
close(fd);
purple_debug(PURPLE_DEBUG_ERROR, "purple_mkstemp",
"Couldn't fdopen(), error: %d\n", errno);
}
}
if(!fp) {
g_free(*fpath);
*fpath = NULL;
}
}
} else {
purple_debug(PURPLE_DEBUG_ERROR, "purple_mkstemp",
"g_get_tmp_dir() failed!\n");
}
return fp;
}
gboolean
purple_program_is_valid(const char *program)
{
GError *error = NULL;
char **argv;
gchar *progname;
gboolean is_valid = FALSE;
g_return_val_if_fail(program != NULL, FALSE);
g_return_val_if_fail(*program != '\0', FALSE);
if (!g_shell_parse_argv(program, NULL, &argv, &error)) {
purple_debug(PURPLE_DEBUG_ERROR, "program_is_valid",
"Could not parse program '%s': %s\n",
program, error->message);
g_error_free(error);
return FALSE;
}
if (argv == NULL) {
return FALSE;
}
progname = g_find_program_in_path(argv[0]);
is_valid = (progname != NULL);
if(purple_debug_is_verbose())
purple_debug_info("program_is_valid", "Tested program %s. %s.\n", program,
is_valid ? "Valid" : "Invalid");
g_strfreev(argv);
g_free(progname);
return is_valid;
}
gboolean
purple_running_gnome(void)
{
#ifndef _WIN32
gchar *tmp = g_find_program_in_path("gvfs-open");
if (tmp == NULL) {
tmp = g_find_program_in_path("gnome-open");
if (tmp == NULL) {
return FALSE;
}
}
g_free(tmp);
tmp = (gchar *)g_getenv("GNOME_DESKTOP_SESSION_ID");
return ((tmp != NULL) && (*tmp != '\0'));
#else
return FALSE;
#endif
}
gboolean
purple_running_kde(void)
{
#ifndef _WIN32
gchar *tmp = g_find_program_in_path("kfmclient");
const char *session;
if (tmp == NULL)
return FALSE;
g_free(tmp);
session = g_getenv("KDE_FULL_SESSION");
if (purple_strequal(session, "true"))
return TRUE;
/* If you run Purple from Konsole under !KDE, this will provide a
* a false positive. Since we do the GNOME checks first, this is
* only a problem if you're running something !(KDE || GNOME) and
* you run Purple from Konsole. This really shouldn't be a problem. */
return ((g_getenv("KDEDIR") != NULL) || g_getenv("KDEDIRS") != NULL);
#else
return FALSE;
#endif
}
gboolean
purple_running_osx(void)
{
#if defined(__APPLE__)
return TRUE;
#else
return FALSE;
#endif
}
typedef union purple_sockaddr {
struct sockaddr sa;
struct sockaddr_in sa_in;
#if defined(AF_INET6)
struct sockaddr_in6 sa_in6;
#endif
struct sockaddr_storage sa_stor;
} PurpleSockaddr;
char *
purple_fd_get_ip(int fd)
{
PurpleSockaddr addr;
socklen_t namelen = sizeof(addr);
int family;
g_return_val_if_fail(fd != 0, NULL);
if (getsockname(fd, &(addr.sa), &namelen))
return NULL;
family = addr.sa.sa_family;
if (family == AF_INET) {
return g_strdup(inet_ntoa(addr.sa_in.sin_addr));
}
#if defined(AF_INET6) && defined(HAVE_INET_NTOP)
else if (family == AF_INET6) {
char host[INET6_ADDRSTRLEN];
const char *tmp;
tmp = inet_ntop(family, &(addr.sa_in6.sin6_addr), host, sizeof(host));
return g_strdup(tmp);
}
#endif
return NULL;
}
int
purple_socket_get_family(int fd)
{
PurpleSockaddr addr;
socklen_t len = sizeof(addr);
g_return_val_if_fail(fd >= 0, -1);
if (getsockname(fd, &(addr.sa), &len))
return -1;
return addr.sa.sa_family;
}
gboolean
purple_socket_speaks_ipv4(int fd)
{
int family;
g_return_val_if_fail(fd >= 0, FALSE);
family = purple_socket_get_family(fd);
switch (family) {
case AF_INET:
return TRUE;
#if defined(IPV6_V6ONLY)
case AF_INET6:
{
int val = 0;
socklen_t len = sizeof(val);
if (getsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, &val, &len) != 0)
return FALSE;
return !val;
}
#endif
default:
return FALSE;
}
}
/**************************************************************************
* String Functions
**************************************************************************/
const char *
purple_normalize(PurpleAccount *account, const char *str)
{
const char *ret = NULL;
static char buf[BUF_LEN];
/* This should prevent a crash if purple_normalize gets called with NULL str, see #10115 */
g_return_val_if_fail(str != NULL, "");
if (account != NULL)
{
PurpleProtocol *protocol =
purple_protocols_find(purple_account_get_protocol_id(account));
if (protocol != NULL)
ret = purple_protocol_client_iface_normalize(protocol, account, str);
}
if (ret == NULL)
{
char *tmp;
tmp = g_utf8_normalize(str, -1, G_NORMALIZE_DEFAULT);
g_snprintf(buf, sizeof(buf), "%s", tmp);
g_free(tmp);
ret = buf;
}
return ret;
}
/*
* You probably don't want to call this directly, it is
* mainly for use as a protocol callback function. See the
* comments in util.h.
*/
const char *
purple_normalize_nocase(const PurpleAccount *account, const char *str)
{
static char buf[BUF_LEN];
char *tmp1, *tmp2;
g_return_val_if_fail(str != NULL, NULL);
tmp1 = g_utf8_strdown(str, -1);
tmp2 = g_utf8_normalize(tmp1, -1, G_NORMALIZE_DEFAULT);
g_snprintf(buf, sizeof(buf), "%s", tmp2 ? tmp2 : "");
g_free(tmp2);
g_free(tmp1);
return buf;
}
gboolean
purple_validate(const PurpleProtocol *protocol, const char *str)
{
const char *normalized;
g_return_val_if_fail(protocol != NULL, FALSE);
g_return_val_if_fail(str != NULL, FALSE);
if (str[0] == '\0')
return FALSE;
if (!PURPLE_PROTOCOL_IMPLEMENTS(protocol, CLIENT, normalize))
return TRUE;
normalized = purple_protocol_client_iface_normalize(PURPLE_PROTOCOL(protocol),
NULL, str);
return (NULL != normalized);
}
gchar *
purple_strdup_withhtml(const gchar *src)
{
gulong destsize, i, j;
gchar *dest;
g_return_val_if_fail(src != NULL, NULL);
/* New length is (length of src) + (number of \n's * 3) - (number of \r's) + 1 */
destsize = 1;
for (i = 0; src[i] != '\0'; i++)
{
if (src[i] == '\n')
destsize += 4;
else if (src[i] != '\r')
destsize++;
}
dest = g_malloc(destsize);
/* Copy stuff, ignoring \r's, because they are dumb */
for (i = 0, j = 0; src[i] != '\0'; i++) {
if (src[i] == '\n') {
strcpy(&dest[j], "<BR>");
j += 4;
} else if (src[i] != '\r')
dest[j++] = src[i];
}
dest[destsize-1] = '\0';
return dest;
}
gboolean
purple_str_has_caseprefix(const gchar *s, const gchar *p)
{
g_return_val_if_fail(s, FALSE);
g_return_val_if_fail(p, FALSE);
return (g_ascii_strncasecmp(s, p, strlen(p)) == 0);
}
char *
purple_str_add_cr(const char *text)
{
char *ret = NULL;
int count = 0, j;
guint i;
g_return_val_if_fail(text != NULL, NULL);
if (text[0] == '\n')
count++;
for (i = 1; i < strlen(text); i++)
if (text[i] == '\n' && text[i - 1] != '\r')
count++;
if (count == 0)
return g_strdup(text);
ret = g_malloc0(strlen(text) + count + 1);
i = 0; j = 0;
if (text[i] == '\n')
ret[j++] = '\r';
ret[j++] = text[i++];
for (; i < strlen(text); i++) {
if (text[i] == '\n' && text[i - 1] != '\r')
ret[j++] = '\r';
ret[j++] = text[i];
}
return ret;
}
void
purple_str_strip_char(char *text, char thechar)
{
int i, j;
g_return_if_fail(text != NULL);
for (i = 0, j = 0; text[i]; i++)
if (text[i] != thechar)
text[j++] = text[i];
text[j] = '\0';
}
void
purple_util_chrreplace(char *string, char delimiter,
char replacement)
{
int i = 0;
g_return_if_fail(string != NULL);
while (string[i] != '\0')
{
if (string[i] == delimiter)
string[i] = replacement;
i++;
}
}
gchar *
purple_strreplace(const char *string, const char *delimiter,
const char *replacement)
{
gchar **split;
gchar *ret;
g_return_val_if_fail(string != NULL, NULL);
g_return_val_if_fail(delimiter != NULL, NULL);
g_return_val_if_fail(replacement != NULL, NULL);
split = g_strsplit(string, delimiter, 0);
ret = g_strjoinv(replacement, split);
g_strfreev(split);
return ret;
}
gchar *
purple_strcasereplace(const char *string, const char *delimiter,
const char *replacement)
{
gchar *ret;
int length_del, length_rep, i, j;
g_return_val_if_fail(string != NULL, NULL);
g_return_val_if_fail(delimiter != NULL, NULL);
g_return_val_if_fail(replacement != NULL, NULL);
length_del = strlen(delimiter);
length_rep = strlen(replacement);
/* Count how many times the delimiter appears */
i = 0; /* position in the source string */
j = 0; /* number of occurrences of "delimiter" */
while (string[i] != '\0') {
if (!g_ascii_strncasecmp(&string[i], delimiter, length_del)) {
i += length_del;
j += length_rep;
} else {
i++;
j++;
}
}
ret = g_malloc(j+1);
i = 0; /* position in the source string */
j = 0; /* position in the destination string */
while (string[i] != '\0') {
if (!g_ascii_strncasecmp(&string[i], delimiter, length_del)) {
strncpy(&ret[j], replacement, length_rep);
i += length_del;
j += length_rep;
} else {
ret[j] = string[i];
i++;
j++;
}
}
ret[j] = '\0';
return ret;
}
/** TODO: Expose this when we can add API */
static const char *
purple_strcasestr_len(const char *haystack, gssize hlen, const char *needle, gssize nlen)
{
const char *tmp, *ret;
g_return_val_if_fail(haystack != NULL, NULL);
g_return_val_if_fail(needle != NULL, NULL);
if (hlen == -1)
hlen = strlen(haystack);
if (nlen == -1)
nlen = strlen(needle);
tmp = haystack,
ret = NULL;
g_return_val_if_fail(hlen > 0, NULL);
g_return_val_if_fail(nlen > 0, NULL);
while (*tmp && !ret && (hlen - (tmp - haystack)) >= nlen) {
if (!g_ascii_strncasecmp(needle, tmp, nlen))
ret = tmp;
else
tmp++;
}
return ret;
}
const char *
purple_strcasestr(const char *haystack, const char *needle)
{
return purple_strcasestr_len(haystack, -1, needle, -1);
}
char *
purple_str_seconds_to_string(guint secs)
{
char *ret = NULL;
guint days, hrs, mins;
if (secs < 60)
{
return g_strdup_printf(dngettext(PACKAGE, "%d second", "%d seconds", secs), secs);
}
days = secs / (60 * 60 * 24);
secs = secs % (60 * 60 * 24);
hrs = secs / (60 * 60);
secs = secs % (60 * 60);
mins = secs / 60;
/* secs = secs % 60; */
if (days > 0)
{
ret = g_strdup_printf(dngettext(PACKAGE, "%d day", "%d days", days), days);
}
if (hrs > 0)
{
if (ret != NULL)
{
char *tmp = g_strdup_printf(
dngettext(PACKAGE, "%s, %d hour", "%s, %d hours", hrs),
ret, hrs);
g_free(ret);
ret = tmp;
}
else
ret = g_strdup_printf(dngettext(PACKAGE, "%d hour", "%d hours", hrs), hrs);
}
if (mins > 0)
{
if (ret != NULL)
{
char *tmp = g_strdup_printf(
dngettext(PACKAGE, "%s, %d minute", "%s, %d minutes", mins),
ret, mins);
g_free(ret);
ret = tmp;
}
else
ret = g_strdup_printf(dngettext(PACKAGE, "%d minute", "%d minutes", mins), mins);
}
return ret;
}
size_t
purple_utf16_size(const gunichar2 *str)
{
/* UTF16 cannot contain two consequent NUL bytes starting at even
* position - see Unicode standards Chapter 3.9 D91 or RFC2781
* Chapter 2.
*/
size_t i = 0;
g_return_val_if_fail(str != NULL, 0);
while (str[i++]);
return i * sizeof(gunichar2);
}
void
purple_str_wipe(gchar *str)
{
if (str == NULL)
return;
memset(str, 0, strlen(str));
g_free(str);
}
void
purple_utf16_wipe(gunichar2 *str)
{
if (str == NULL)
return;
memset(str, 0, purple_utf16_size(str));
g_free(str);
}
/**************************************************************************
* URI/URL Functions
**************************************************************************/
void purple_got_protocol_handler_uri(const char *uri)
{
char proto[11];
char delimiter;
const char *tmp, *param_string;
char *cmd;
GHashTable *params = NULL;
gsize len;
if (!(tmp = strchr(uri, ':')) || tmp == uri) {
purple_debug_error("util", "Malformed protocol handler message - missing protocol.\n");
return;
}
len = MIN(sizeof(proto) - 1, (gsize)(tmp - uri));
strncpy(proto, uri, len);
proto[len] = '\0';
tmp++;
if (purple_strequal(proto, "xmpp"))
delimiter = ';';
else
delimiter = '&';
purple_debug_info("util", "Processing message '%s' for protocol '%s' using delimiter '%c'.\n", tmp, proto, delimiter);
if ((param_string = strchr(tmp, '?'))) {
const char *keyend = NULL, *pairstart;
char *key, *value = NULL;
cmd = g_strndup(tmp, (param_string - tmp));
param_string++;
params = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, g_free);
pairstart = tmp = param_string;
while (*tmp || *pairstart) {
if (*tmp == delimiter || !(*tmp)) {
/* If there is no explicit value */
if (keyend == NULL) {
keyend = tmp;
}
/* without these brackets, clang won't
* recognize tmp as a non-NULL
*/
if (keyend && keyend != pairstart) {
char *p;
key = g_strndup(pairstart, (keyend - pairstart));
/* If there is an explicit value */
if (keyend != tmp && keyend != (tmp - 1))
value = g_strndup(keyend + 1, (tmp - keyend - 1));
for (p = key; *p; ++p)
*p = g_ascii_tolower(*p);
g_hash_table_insert(params, key, value);
}
keyend = value = NULL;
pairstart = (*tmp) ? tmp + 1 : tmp;
} else if (*tmp == '=')
keyend = tmp;
if (*tmp)
tmp++;
}
} else
cmd = g_strdup(tmp);
purple_signal_emit_return_1(purple_get_core(), "uri-handler", proto, cmd, params);
g_free(cmd);
if (params)
g_hash_table_destroy(params);
}
const char *
purple_url_decode(const char *str)
{
static char buf[BUF_LEN];
guint i, j = 0;
char *bum;
char hex[3];
g_return_val_if_fail(str != NULL, NULL);
/*
* XXX - This check could be removed and buf could be made
* dynamically allocated, but this is easier.
*/
if (strlen(str) >= BUF_LEN)
return NULL;
for (i = 0; i < strlen(str); i++) {
if (str[i] != '%')
buf[j++] = str[i];
else {
strncpy(hex, str + ++i, 2);
hex[2] = '\0';
/* i is pointing to the start of the number */
i++;
/*
* Now it's at the end and at the start of the for loop
* will be at the next character.
*/
buf[j++] = strtol(hex, NULL, 16);
}
}
buf[j] = '\0';
if (!g_utf8_validate(buf, -1, (const char **)&bum))
*bum = '\0';
return buf;
}
const char *
purple_url_encode(const char *str)
{
const char *iter;
static char buf[BUF_LEN];
char utf_char[6];
guint i, j = 0;
g_return_val_if_fail(str != NULL, NULL);
g_return_val_if_fail(g_utf8_validate(str, -1, NULL), NULL);
iter = str;
for (; *iter && j < (BUF_LEN - 1) ; iter = g_utf8_next_char(iter)) {
gunichar c = g_utf8_get_char(iter);
/* If the character is an ASCII character and is alphanumeric
* no need to escape */
if (c < 128 && (isalnum(c) || c == '-' || c == '.' || c == '_' || c == '~')) {
buf[j++] = c;
} else {
int bytes = g_unichar_to_utf8(c, utf_char);
for (i = 0; (int)i < bytes; i++) {
if (j > (BUF_LEN - 4))
break;
if (i >= sizeof(utf_char)) {
g_warn_if_reached();
break;
}
sprintf(buf + j, "%%%02X", utf_char[i] & 0xff);
j += 3;
}
}
}
buf[j] = '\0';
return buf;
}
/* Originally lifted from
* http://www.oreillynet.com/pub/a/network/excerpt/spcookbook_chap03/index3.html
* ... and slightly modified to be a bit more rfc822 compliant
* ... and modified a bit more to make domain checking rfc1035 compliant
* with the exception permitted in rfc1101 for domains to start with digit
* but not completely checking to avoid conflicts with IP addresses
*/
gboolean
purple_email_is_valid(const char *address)
{
const char *c, *domain;
static char *rfc822_specials = "()<>@,;:\\\"[]";
g_return_val_if_fail(address != NULL, FALSE);
if (*address == '.') return FALSE;
/* first we validate the name portion (name@domain) (rfc822)*/
for (c = address; *c; c++) {
if (*c == '\"' && (c == address || *(c - 1) == '.' || *(c - 1) == '\"')) {
while (*++c) {
if (*c == '\\') {
if (*c++ && *c < 127 && *c > 0 && *c != '\n' && *c != '\r') continue;
else return FALSE;
}
if (*c == '\"') break;
if (*c < ' ' || *c >= 127) return FALSE;
}
if (!*c++) return FALSE;
if (*c == '@') break;
if (*c != '.') return FALSE;
continue;
}
if (*c == '@') break;
if (*c <= ' ' || *c >= 127) return FALSE;
if (strchr(rfc822_specials, *c)) return FALSE;
}
/* It's obviously not an email address if we didn't find an '@' above */
if (*c == '\0') return FALSE;
/* strictly we should return false if (*(c - 1) == '.') too, but I think
* we should permit user.@domain type addresses - they do work :) */
if (c == address) return FALSE;
/* next we validate the domain portion (name@domain) (rfc1035 & rfc1011) */
if (!*(domain = ++c)) return FALSE;
do {
if (*c == '.' && (c == domain || *(c - 1) == '.' || *(c - 1) == '-'))
return FALSE;
if (*c == '-' && (*(c - 1) == '.' || *(c - 1) == '@')) return FALSE;
if ((*c < '0' && *c != '-' && *c != '.') || (*c > '9' && *c < 'A') ||
(*c > 'Z' && *c < 'a') || (*c > 'z')) return FALSE;
} while (*++c);
if (*(c - 1) == '-') return FALSE;
return ((c - domain) > 3 ? TRUE : FALSE);
}
/* Stolen from gnome_uri_list_extract_uris */
GList *
purple_uri_list_extract_uris(const gchar *uri_list)
{
const gchar *p, *q;
gchar *retval;
GList *result = NULL;
g_return_val_if_fail (uri_list != NULL, NULL);
p = uri_list;
/* We don't actually try to validate the URI according to RFC
* 2396, or even check for allowed characters - we just ignore
* comments and trim whitespace off the ends. We also
* allow LF delimination as well as the specified CRLF.
*/
while (p) {
if (*p != '#') {
while (isspace(*p))
p++;
q = p;
while (*q && (*q != '\n') && (*q != '\r'))
q++;
if (q > p) {
q--;
while (q > p && isspace(*q))
q--;
retval = (gchar*)g_malloc (q - p + 2);
strncpy (retval, p, q - p + 1);
retval[q - p + 1] = '\0';
result = g_list_prepend (result, retval);
}
}
p = strchr (p, '\n');
if (p)
p++;
}
return g_list_reverse (result);
}
/* Stolen from gnome_uri_list_extract_filenames */
GList *
purple_uri_list_extract_filenames(const gchar *uri_list)
{
GList *tmp_list, *node, *result;
g_return_val_if_fail (uri_list != NULL, NULL);
result = purple_uri_list_extract_uris(uri_list);
tmp_list = result;
while (tmp_list) {
gchar *s = (gchar*)tmp_list->data;
node = tmp_list;
tmp_list = tmp_list->next;
if (!strncmp (s, "file:", 5)) {
node->data = g_filename_from_uri (s, NULL, NULL);
/* not sure if this fallback is useful at all */
if (!node->data) node->data = g_strdup (s+5);
} else {
result = g_list_delete_link(result, node);
}
g_free (s);
}
return result;
}
char *
purple_uri_escape_for_open(const char *unescaped)
{
/* Replace some special characters like $ with their percent-encoded value.
* This shouldn't be necessary because we shell-escape the entire arg before
* exec'ing the browser, however, we had a report that a URL containing
* $(xterm) was causing xterm to start on his system. This is obviously a
* bug on his system, but it's pretty easy for us to protect against it. */
return g_uri_escape_string(unescaped, "[]:;/%#,+?=&@", FALSE);
}
/**************************************************************************
* UTF8 String Functions
**************************************************************************/
gchar *
purple_utf8_try_convert(const char *str)
{
gsize converted;
gchar *utf8;
g_return_val_if_fail(str != NULL, NULL);
if (g_utf8_validate(str, -1, NULL)) {
return g_strdup(str);
}
utf8 = g_locale_to_utf8(str, -1, &converted, NULL, NULL);
if (utf8 != NULL)
return utf8;
utf8 = g_convert(str, -1, "UTF-8", "ISO-8859-15", &converted, NULL, NULL);
if ((utf8 != NULL) && (converted == strlen(str)))
return utf8;
g_free(utf8);
return NULL;
}
#define utf8_first(x) ((x & 0x80) == 0 || (x & 0xe0) == 0xc0 \
|| (x & 0xf0) == 0xe0 || (x & 0xf8) == 0xf0)
gchar *
purple_utf8_salvage(const char *str)
{
GString *workstr;
const char *end;
g_return_val_if_fail(str != NULL, NULL);
workstr = g_string_sized_new(strlen(str));
do {
(void)g_utf8_validate(str, -1, &end);
workstr = g_string_append_len(workstr, str, end - str);
str = end;
if (*str == '\0')
break;
do {
workstr = g_string_append_c(workstr, '?');
str++;
} while (!utf8_first(*str));
} while (*str != '\0');
return g_string_free(workstr, FALSE);
}
gchar *
purple_utf8_strip_unprintables(const gchar *str)
{
gchar *workstr, *iter;
const gchar *bad;
if (str == NULL)
/* Act like g_strdup */
return NULL;
if (!g_utf8_validate(str, -1, &bad)) {
purple_debug_error("util", "purple_utf8_strip_unprintables(%s) failed; "
"first bad character was %02x (%c)\n",
str, *bad, *bad);
g_return_val_if_reached(NULL);
}
workstr = iter = g_new(gchar, strlen(str) + 1);
while (*str) {
gunichar ch = g_utf8_get_char(str);
gchar *next = g_utf8_next_char(str);
/*
* Char ::= #x9 | #xA | #xD | [#x20-#xD7FF] | [#xE000-#xFFFD] |
* [#x10000-#x10FFFF]
*/
if ((ch == '\t' || ch == '\n' || ch == '\r') ||
(ch >= 0x20 && ch <= 0xD7FF) ||
(ch >= 0xE000 && ch <= 0xFFFD) ||
(ch >= 0x10000 && ch <= 0x10FFFF)) {
memcpy(iter, str, next - str);
iter += (next - str);
}
str = next;
}
/* nul-terminate the new string */
*iter = '\0';
return workstr;
}
/*
* This function is copied from g_strerror() but changed to use
* gai_strerror().
*/
const gchar *
purple_gai_strerror(gint errnum)
{
static GPrivate msg_private = G_PRIVATE_INIT(g_free);
char *msg;
int saved_errno = errno;
const char *msg_locale;
msg_locale = gai_strerror(errnum);
if (g_get_charset(NULL))
{
/* This string is already UTF-8--great! */
errno = saved_errno;
return msg_locale;
}
else
{
gchar *msg_utf8 = g_locale_to_utf8(msg_locale, -1, NULL, NULL, NULL);
if (msg_utf8)
{
/* Stick in the quark table so that we can return a static result */
GQuark msg_quark = g_quark_from_string(msg_utf8);
g_free(msg_utf8);
msg_utf8 = (gchar *)g_quark_to_string(msg_quark);
errno = saved_errno;
return msg_utf8;
}
}
msg = g_private_get(&msg_private);
if (!msg)
{
msg = g_new(gchar, 64);
g_private_set(&msg_private, msg);
}
sprintf(msg, "unknown error (%d)", errnum);
errno = saved_errno;
return msg;
}
char *
purple_utf8_ncr_encode(const char *str)
{
GString *out;
g_return_val_if_fail(str != NULL, NULL);
g_return_val_if_fail(g_utf8_validate(str, -1, NULL), NULL);
out = g_string_new("");
for(; *str; str = g_utf8_next_char(str)) {
gunichar wc = g_utf8_get_char(str);
/* super simple check. hopefully not too wrong. */
if(wc >= 0x80) {
g_string_append_printf(out, "&#%u;", (guint32) wc);
} else {
g_string_append_unichar(out, wc);
}
}
return g_string_free(out, FALSE);
}
char *
purple_utf8_ncr_decode(const char *str)
{
GString *out;
char *buf, *b;
g_return_val_if_fail(str != NULL, NULL);
g_return_val_if_fail(g_utf8_validate(str, -1, NULL), NULL);
buf = (char *) str;
out = g_string_new("");
while( (b = strstr(buf, "&#")) ) {
gunichar wc;
int base = 0;
/* append everything leading up to the &# */
g_string_append_len(out, buf, b-buf);
b += 2; /* skip past the &# */
/* strtoul will treat 0x prefix as hex, but not just x */
if(*b == 'x' || *b == 'X') {
base = 16;
b++;
}
/* advances buf to the end of the ncr segment */
wc = (gunichar) strtoul(b, &buf, base);
/* this mimics the previous impl of ncr_decode */
if(*buf == ';') {
g_string_append_unichar(out, wc);
buf++;
}
}
/* append whatever's left */
g_string_append(out, buf);
return g_string_free(out, FALSE);
}
int
purple_utf8_strcasecmp(const char *a, const char *b)
{
char *a_norm = NULL;
char *b_norm = NULL;
int ret = -1;
if(!a && b)
return -1;
else if(!b && a)
return 1;
else if(!a && !b)
return 0;
if(!g_utf8_validate(a, -1, NULL) || !g_utf8_validate(b, -1, NULL))
{
purple_debug_error("purple_utf8_strcasecmp",
"One or both parameters are invalid UTF8\n");
return ret;
}
a_norm = g_utf8_casefold(a, -1);
b_norm = g_utf8_casefold(b, -1);
ret = g_utf8_collate(a_norm, b_norm);
g_free(a_norm);
g_free(b_norm);
return ret;
}
/* previously conversation::find_nick() */
gboolean
purple_utf8_has_word(const char *haystack, const char *needle)
{
char *hay, *pin, *p;
const char *start, *prev_char;
gunichar before, after;
int n;
gboolean ret = FALSE;
start = hay = g_utf8_strdown(haystack, -1);
pin = g_utf8_strdown(needle, -1);
n = strlen(pin);
while ((p = strstr(start, pin)) != NULL) {
prev_char = g_utf8_find_prev_char(hay, p);
before = -2;
if (prev_char) {
before = g_utf8_get_char(prev_char);
}
after = g_utf8_get_char_validated(p + n, - 1);
if ((p == hay ||
/* The character before is a reasonable guess for a word boundary
("!g_unichar_isalnum()" is not a valid way to determine word
boundaries, but it is the only reasonable thing to do here),
and isn't the '&' from a "&amp;" or some such entity*/
(before != (gunichar)-2 && !g_unichar_isalnum(before) && *(p - 1) != '&'))
&& after != (gunichar)-2 && !g_unichar_isalnum(after)) {
ret = TRUE;
break;
}
start = p + 1;
}
g_free(pin);
g_free(hay);
return ret;
}
gboolean purple_message_meify(char *message, gssize len)
{
char *c;
gboolean inside_html = FALSE;
g_return_val_if_fail(message != NULL, FALSE);
if(len == -1)
len = strlen(message);
for (c = message; *c; c++, len--) {
if(inside_html) {
if(*c == '>')
inside_html = FALSE;
} else {
if(*c == '<')
inside_html = TRUE;
else
break;
}
}
if(*c && !g_ascii_strncasecmp(c, "/me ", 4)) {
memmove(c, c+4, len-3);
return TRUE;
}
return FALSE;
}
char *purple_text_strip_mnemonic(const char *in)
{
char *out;
char *a;
char *a0;
const char *b;
g_return_val_if_fail(in != NULL, NULL);
out = g_malloc(strlen(in)+1);
a = out;
b = in;
a0 = a; /* The last non-space char seen so far, or the first char */
while(*b) {
if(*b == '_') {
if(a > out && b > in && *(b-1) == '(' && *(b+1) && !(*(b+1) & 0x80) && *(b+2) == ')') {
/* Detected CJK style shortcut (Bug 875311) */
a = a0; /* undo the left parenthesis */
b += 3; /* and skip the whole mess */
} else if(*(b+1) == '_') {
*(a++) = '_';
b += 2;
a0 = a;
} else {
b++;
}
/* We don't want to corrupt the middle of UTF-8 characters */
} else if (!(*b & 0x80)) { /* other 1-byte char */
if (*b != ' ')
a0 = a;
*(a++) = *(b++);
} else {
/* Multibyte utf8 char, don't look for _ inside these */
int n = 0;
int i;
if ((*b & 0xe0) == 0xc0) {
n = 2;
} else if ((*b & 0xf0) == 0xe0) {
n = 3;
} else if ((*b & 0xf8) == 0xf0) {
n = 4;
} else if ((*b & 0xfc) == 0xf8) {
n = 5;
} else if ((*b & 0xfe) == 0xfc) {
n = 6;
} else { /* Illegal utf8 */
n = 1;
}
a0 = a; /* unless we want to delete CJK spaces too */
for (i = 0; i < n && *b; i += 1) {
*(a++) = *(b++);
}
}
}
*a = '\0';
return out;
}
const char* purple_unescape_filename(const char *escaped) {
return purple_url_decode(escaped);
}
/* this is almost identical to purple_url_encode (hence purple_url_decode
* being used above), but we want to keep certain characters unescaped
* for compat reasons */
const char *
purple_escape_filename(const char *str)
{
const char *iter;
static char buf[BUF_LEN];
char utf_char[6];
guint i, j = 0;
g_return_val_if_fail(str != NULL, NULL);
g_return_val_if_fail(g_utf8_validate(str, -1, NULL), NULL);
iter = str;
for (; *iter && j < (BUF_LEN - 1) ; iter = g_utf8_next_char(iter)) {
gunichar c = g_utf8_get_char(iter);
/* If the character is an ASCII character and is alphanumeric,
* or one of the specified values, no need to escape */
if (c < 128 && (g_ascii_isalnum(c) || c == '@' || c == '-' ||
c == '_' || c == '.' || c == '#')) {
buf[j++] = c;
} else {
int bytes = g_unichar_to_utf8(c, utf_char);
for (i = 0; (int)i < bytes; i++) {
if (j > (BUF_LEN - 4))
break;
if (i >= sizeof(utf_char)) {
g_warn_if_reached();
break;
}
sprintf(buf + j, "%%%02x", utf_char[i] & 0xff);
j += 3;
}
}
}
#ifdef _WIN32
/* File/Directory names in windows cannot end in periods/spaces.
* http://msdn.microsoft.com/en-us/library/aa365247%28VS.85%29.aspx
*/
while (j > 0 && (buf[j - 1] == '.' || buf[j - 1] == ' '))
j--;
#endif
buf[j] = '\0';
return buf;
}
void purple_restore_default_signal_handlers(void)
{
#ifndef _WIN32
signal(SIGHUP, SIG_DFL); /* 1: terminal line hangup */
signal(SIGINT, SIG_DFL); /* 2: interrupt program */
signal(SIGQUIT, SIG_DFL); /* 3: quit program */
signal(SIGILL, SIG_DFL); /* 4: illegal instruction (not reset when caught) */
signal(SIGTRAP, SIG_DFL); /* 5: trace trap (not reset when caught) */
signal(SIGABRT, SIG_DFL); /* 6: abort program */
#ifdef SIGPOLL
signal(SIGPOLL, SIG_DFL); /* 7: pollable event (POSIX) */
#endif /* SIGPOLL */
#ifdef SIGEMT
signal(SIGEMT, SIG_DFL); /* 7: EMT instruction (Non-POSIX) */
#endif /* SIGEMT */
signal(SIGFPE, SIG_DFL); /* 8: floating point exception */
signal(SIGBUS, SIG_DFL); /* 10: bus error */
signal(SIGSEGV, SIG_DFL); /* 11: segmentation violation */
signal(SIGSYS, SIG_DFL); /* 12: bad argument to system call */
signal(SIGPIPE, SIG_DFL); /* 13: write on a pipe with no reader */
signal(SIGALRM, SIG_DFL); /* 14: real-time timer expired */
signal(SIGTERM, SIG_DFL); /* 15: software termination signal */
signal(SIGCHLD, SIG_DFL); /* 20: child status has changed */
signal(SIGXCPU, SIG_DFL); /* 24: exceeded CPU time limit */
signal(SIGXFSZ, SIG_DFL); /* 25: exceeded file size limit */
#endif /* !_WIN32 */
}
static void
set_status_with_attrs(PurpleStatus *status, ...)
{
va_list args;
va_start(args, status);
purple_status_set_active_with_attrs(status, TRUE, args);
va_end(args);
}
void purple_util_set_current_song(const char *title, const char *artist, const char *album)
{
GList *list = purple_accounts_get_all();
for (; list; list = list->next) {
PurplePresence *presence;
PurpleStatus *tune;
PurpleAccount *account = list->data;
if (!purple_account_get_enabled(account, purple_core_get_ui()))
continue;
presence = purple_account_get_presence(account);
tune = purple_presence_get_status(presence, "tune");
if (!tune)
continue;
if (title) {
set_status_with_attrs(tune,
PURPLE_TUNE_TITLE, title,
PURPLE_TUNE_ARTIST, artist,
PURPLE_TUNE_ALBUM, album,
NULL);
} else {
purple_status_set_active(tune, FALSE);
}
}
}
char * purple_util_format_song_info(const char *title, const char *artist, const char *album, gpointer unused)
{
GString *string;
char *esc;
if (!title || !*title)
return NULL;
esc = g_markup_escape_text(title, -1);
string = g_string_new("");
g_string_append_printf(string, "%s", esc);
g_free(esc);
if (artist && *artist) {
esc = g_markup_escape_text(artist, -1);
g_string_append_printf(string, _(" - %s"), esc);
g_free(esc);
}
if (album && *album) {
esc = g_markup_escape_text(album, -1);
g_string_append_printf(string, _(" (%s)"), esc);
g_free(esc);
}
return g_string_free(string, FALSE);
}
gchar *
purple_uuid_random(void)
{
guint32 tmp, a, b;
tmp = g_random_int();
a = 0x4000 | (tmp & 0xFFF); /* 0x4000 to 0x4FFF */
tmp >>= 12;
b = ((1 << 3) << 12) | (tmp & 0x3FFF); /* 0x8000 to 0xBFFF */
tmp = g_random_int();
return g_strdup_printf("%08x-%04x-%04x-%04x-%04x%08x",
g_random_int(),
tmp & 0xFFFF,
a,
b,
(tmp >> 16) & 0xFFFF, g_random_int());
}
void purple_callback_set_zero(gpointer data)
{
gpointer *ptr = data;
g_return_if_fail(ptr != NULL);
*ptr = NULL;
}
GValue *
purple_value_new(GType type)
{
GValue *ret;
g_return_val_if_fail(type != G_TYPE_NONE, NULL);
ret = g_new0(GValue, 1);
g_value_init(ret, type);
return ret;
}
GValue *
purple_value_dup(GValue *value)
{
GValue *ret;
g_return_val_if_fail(value != NULL, NULL);
ret = g_new0(GValue, 1);
g_value_init(ret, G_VALUE_TYPE(value));
g_value_copy(value, ret);
return ret;
}
void
purple_value_free(GValue *value)
{
g_return_if_fail(value != NULL);
g_value_unset(value);
g_free(value);
}
int
_purple_fstat(int fd, GStatBuf *st)
{
int ret;
g_return_val_if_fail(st != NULL, -1);
#ifdef _WIN32
ret = _fstat(fd, st);
#else
ret = fstat(fd, st);
#endif
return ret;
}