Merged revisions 60603 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.4

........
r60603 | russell | 2007-04-06 15:58:43 -0500 (Fri, 06 Apr 2007) | 13 lines

To be able to achieve the things that we would like to achieve with the
Asterisk GUI project, we need a fully functional HTTP interface with access
to the Asterisk manager interface.  One of the things that was intended to be
a part of this system, but was never actually implemented, was the ability for
the GUI to be able to upload files to Asterisk.  So, this commit adds this in
the most minimally invasive way that we could come up with.

A lot of work on minimime was done by Steve Murphy.  He fixed a lot of bugs in
the parser, and updated it to be thread-safe.  The ability to check
permissions of active manager sessions was added by Dwayne Hubbard.  Then,
hacking this all together and do doing the modifications necessary to the HTTP
interface was done by me.

........


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@60604 65c4cc65-6c06-0410-ace0-fbb531ad65f3

1 files changed, 412 insertions, 0 deletions

diff --git a/main/minimime/mm_util.c b/main/minimime/mm_util.c
new file mode 100644
index 000000000..94150d40b
--- /dev/null
+++ b/main/minimime/mm_util.c
@@ -0,0 +1,412 @@
+/*
+ * $Id$
+ *
+ * MiniMIME - a library for handling MIME messages
+ *
+ * Copyright (C) 2003 Jann Fischer <rezine@mistrust.net>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the author nor the names of the contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JANN FISCHER AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL JANN FISCHER OR THE VOICES IN HIS HEAD
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <assert.h>
+
+#include "mm_internal.h"
+
+/** @file mm_util.c
+ *
+ * This module contains utility functions for the MiniMIME library
+ */
+
+/** @defgroup util General purpose utility functions */
+
+#ifndef __HAVE_LEAK_DETECTION
+/**
+ * Allocates a block of memory
+ *
+ * @param size The size of the memory region to allocate
+ * @return A pointer to the allocated memory region
+ * @ingroup util
+ *
+ * xmalloc() calls abort() if either the size argument is negative or the
+ * requested memory amount could not be allocated via an assert() call.
+ */
+void *
+xmalloc(size_t size)
+{
+	void *p;
+
+	assert(size > 0);
+	p = malloc(size);
+	assert(p != NULL);
+
+	return p;
+}
+
+/**
+ * realloc() wrapper
+ *
+ * @param p Pointer to a memory region which should be reallocated
+ * @param size The new size of the memory region
+ * @return A pointer to the reallocated memory region
+ * @ingroup util
+ *
+ * xrealloc() is a wrapper around realloc() which calls abort() if either the
+ * size argument is negative or the requested memory amount could not be
+ * allocated.
+ */
+void *
+xrealloc(void *p, size_t size)
+{
+	void *n;
+	
+	assert(size > 0);
+	n = realloc(p, size);
+	assert(n != NULL);
+
+	return n;
+}
+
+char *
+xstrdup(const char *str)
+{
+	char *p;
+
+	assert(str != NULL);
+	p = strdup(str);
+	assert(p != NULL);
+	
+	return p;
+}
+
+void
+xfree(void *p)
+{
+	assert(p != NULL);
+	free(p);
+	p = NULL;
+	assert(p == NULL);
+}
+#endif /* ! __HAVE_LEAK_DETECTION */
+
+/**
+ * Unquotes a string
+ *
+ * @param string The quoted string to unquote
+ * @return A pointer to the unquoted string
+ * @ingroup util
+ *
+ * This function unquotes a string. That is, it returns a pointer to a newly
+ * allocated memory region in which the unquoted string is stored. Only
+ * leading and trailing double-qoutes are removed. The string needs to be
+ * freed when it is not needed anymore.
+ */
+char *
+mm_unquote(const char *string)
+{
+	char *ret;
+
+	if (string[0] != '\"' || string[strlen(string)-1] != '\"')
+		return xstrdup(string);
+
+	ret = xstrdup(string + 1);
+	ret[strlen(ret)-1] = '\0';
+
+	return ret;
+}
+
+
+/**
+ * Removes MIME comments from a string
+ *
+ * @param string The string to uncomment
+ * @return A pointer to the uncommented string or NULL on error. Sets mm_errno.
+ * @ingroup util
+ *
+ * This function removes MIME comments from a string (included in parantheses).
+ * It returns a pointer to a newly allocated memory region in which the
+ * uncommented string is stored. The returned string needs to be freed when
+ * it's not used anymore.
+ */
+char *
+mm_uncomment(const char *string)
+{
+	char *buf, *new, *orig, *token;
+	size_t new_size;
+	int found;
+	int open;
+
+	assert(string != NULL);
+	
+	new_size = strlen(string) + 1;
+	new = NULL;
+	buf = NULL;
+	orig = NULL;
+	found = 0;
+	open = 0;
+	mm_errno = MM_ERROR_NONE;
+
+	buf = xstrdup(string);
+	orig = buf;
+
+	while (*buf != '\0') {
+		if (*buf == '(') {
+			open++;
+			new_size--;
+			found++;
+		} else if (*buf == ')') {
+			open--;
+			new_size--;
+		} else {
+			if (open)
+				new_size--;
+		}
+		buf++;
+	}
+
+	if (open != 0) {
+		mm_errno = MM_ERROR_PARSE;
+		mm_error_setmsg("Uncommenting: parantheses are unbalanced");
+		goto cleanup;
+	}
+
+	if (!found) {
+		new = orig;
+		return orig;
+	}
+
+	new = xmalloc(new_size + 1);
+	*new = '\0';
+	buf = orig;
+	token = buf;
+
+	/* Tokenize our string by parentheses, and copy the portions which are
+	 * not commented to our destination.
+	 */
+	open = 0;
+	while (*buf != '\0') {
+		if (*buf == '(') {
+			if (!open) {
+				*buf = '\0';
+				strlcat(new, token, new_size);
+				token = buf+1;
+			}
+			open++;
+		}
+		if (*buf == ')') {
+			open--;
+			token = buf + 1;
+		}
+		buf++;
+	}
+
+	strlcat(new, token, new_size);
+	
+cleanup:
+	if (orig != NULL) {
+		xfree(orig);
+		orig = NULL;
+	}
+
+	if (mm_errno != MM_ERROR_NONE) {
+		if (new != NULL) {
+			xfree(new);
+			new = NULL;
+		}
+		return NULL;
+	} else {
+		return new;
+	}
+}
+
+/**
+ * separate strings
+ *
+ * @param stringp A pointer to the string being splitted
+ * @param delim The delimeter string
+ * @ingroup util
+ *
+ * This function works similar to strsep(), with the difference that delim is
+ * treated as a whole.
+ */
+char *
+xstrsep(char **stringp, const char *delim)
+{
+	char *p;
+	char *s;
+	char *r;
+
+	if (*stringp == NULL || *stringp == '\0')
+		return NULL;
+
+	p = *stringp;
+
+	if ((s = strstr(p, delim)) == NULL) {
+		r = p;
+		while (*p != '\0')
+			p++;
+		*stringp = NULL;
+		return r;
+	} else {
+		r = p;
+		p += strlen(p) - strlen(s);
+		*p = '\0';
+		*stringp = p + strlen(delim);
+		return r;
+	}
+}
+
+/**
+ * Strips a given character set from a string
+ *
+ * @param input The string which to strip
+ * @param strip The character set to strip off
+ * @return A copy of the original string with all chars stripped
+ * @ingroup util
+ */
+char *
+mm_stripchars(char *input, char *strip)
+{
+	char *output, *orig;
+	int i, j, chars;
+
+	assert(input != NULL);
+	assert(strip != '\0');
+	
+	chars = 0;
+	orig = input;
+
+	while (*orig != '\0') {
+		for (i = 0; i < strlen(strip); i++) {
+			if (*orig == strip[i]) {
+				chars++;
+				break;
+			}
+		}
+		orig++;
+	}
+	
+	/* If we have not found any char in the input, return a dup of the orig
+	   string */
+	if (chars == 0)
+		return(xstrdup(input));
+
+	output = (char *)xmalloc(strlen(input) - chars);
+	orig = output;
+
+	for (i = 0; i < strlen(input); i++) {
+		int stripc;
+		stripc = 0;
+		for (j = 0; j < strlen(strip); j++) {
+			if (input[i] == strip[j]) {
+				stripc = 1;
+				break;
+			}
+		}
+		if (stripc == 0) {
+			*output = input[i];
+			output++;
+		}
+	}
+
+	*output = '\0';
+
+	return(orig);
+}
+
+/**
+ * Adds characters to a string at given positions
+ *
+ * @param input The string to which to add characters
+ * @param add The character string to add
+ * @param linelength The position where to add the character
+ * @return A copy of the string with characters added
+ * @ingroup util
+ *
+ * This function adds the characters add at each linelength positions and
+ * returns this new string.
+ */
+char *
+mm_addchars(char *input, char *add, u_int16_t linelength)
+{
+	u_int32_t len;
+	u_int32_t i;
+	u_int32_t l;
+	u_int32_t j;
+	u_int16_t addcrlf;
+	char *output;
+	char *orig;
+	
+	len = strlen(input);
+	if (len <= linelength)
+		return(xstrdup(input));
+
+	addcrlf = len / linelength;
+
+	output = (char *)xmalloc(len + (addcrlf * strlen(add)));
+	orig = output;
+	
+	for (i = 0, l = 0; i < len; i++, l++) {
+		if (l == linelength) {
+			for (j = 0; j < strlen(add); j++) {
+				*output = add[j];
+				output++;
+			}
+			l = 0;
+		}
+		*output = input[i];
+		output++;
+	}
+
+	*output = '\0';
+	output = orig;
+
+	return(orig);
+}
+
+void
+mm_striptrailing(char **what, const char *charset)
+{
+	size_t eos, i, hit; 
+	char *str;
+
+	str = *what;
+	for (eos = strlen(str)-1; eos >= 0; eos--) { 
+		hit = 0;
+		for (i = 0; i < strlen(charset); i++) { 
+			if (str[eos] == charset[i]) {
+				str[eos] = '\0'; 
+				hit = 1; 
+				break; 
+			} 
+		}
+		if (!hit)
+			break;
+	}
+}