Author: mikej Date: Tue Jul 8 17:52:38 2008 New Revision: 8940 Added: freeswitch/trunk/src/switch_xml.c Modified: freeswitch/trunk/w32/Library/FreeSwitchCore.2008.vcproj freeswitch/trunk/w32/Library/FreeSwitchCore.vcproj Log: switch_xml becomes c again (FSCORE-151) Added: freeswitch/trunk/src/switch_xml.c ============================================================================== --- (empty file) +++ freeswitch/trunk/src/switch_xml.c Tue Jul 8 17:52:38 2008 @@ -0,0 +1,2619 @@ +/* + * FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application + * Copyright (C) 2005/2006, Anthony Minessale II <anthmct@yahoo.com> + * + * Version: MPL 1.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application + * + * The Initial Developer of the Original Code is + * Anthony Minessale II <anthmct@yahoo.com> + * Portions created by the Initial Developer are Copyright (C) + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * + * Anthony Minessale II <anthmct@yahoo.com> + * Simon Capper <skyjunky@sbcglobal.net> + * + * + * switch_xml.c -- XML PARSER + * + * Derived from ezxml http://ezxml.sourceforge.net + * Original Copyright + * + * Copyright 2004, 2006 Aaron Voisine <aaron@voisine.org> + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sublicense, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. + * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY + * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +#include <switch.h> +#ifndef WIN32 +#include <switch_private.h> +#include <glob.h> +#else /* we're on windoze :( */ +/* glob functions at end of this file */ +#include <apr_file_io.h> + +typedef struct { + size_t gl_pathc; /* Count of total paths so far. */ + size_t gl_matchc; /* Count of paths matching pattern. */ + size_t gl_offs; /* Reserved at beginning of gl_pathv. */ + int gl_flags; /* Copy of flags parameter to glob. */ + char **gl_pathv; /* List of paths matching pattern. */ + /* Copy of errfunc parameter to glob. */ + int (*gl_errfunc)(const char *, int); +} glob_t; + +/* Believed to have been introduced in 1003.2-1992 */ +#define GLOB_APPEND 0x0001 /* Append to output from previous call. */ +#define GLOB_DOOFFS 0x0002 /* Use gl_offs. */ +#define GLOB_ERR 0x0004 /* Return on error. */ +#define GLOB_MARK 0x0008 /* Append / to matching directories. */ +#define GLOB_NOCHECK 0x0010 /* Return pattern itself if nothing matches. */ +#define GLOB_NOSORT 0x0020 /* Don't sort. */ + +/* Error values returned by glob(3) */ +#define GLOB_NOSPACE (-1) /* Malloc call failed. */ +#define GLOB_ABORTED (-2) /* Unignored error. */ +#define GLOB_NOMATCH (-3) /* No match and GLOB_NOCHECK was not set. */ +#define GLOB_NOSYS (-4) /* Obsolete: source comptability only. */ + +#define GLOB_ALTDIRFUNC 0x0040 /* Use alternately specified directory funcs. */ +#define GLOB_MAGCHAR 0x0100 /* Pattern had globbing characters. */ +#define GLOB_NOMAGIC 0x0200 /* GLOB_NOCHECK without magic chars (csh). */ +#define GLOB_QUOTE 0x0400 /* Quote special chars with \. */ +#define GLOB_LIMIT 0x1000 /* limit number of returned paths */ + +int glob(const char *, int, int (*)(const char *, int), glob_t *); +void globfree(glob_t *); + +#endif +#undef HAVE_MMAP +#ifdef HAVE_MMAP +#include <sys/mman.h> +#ifdef __sun +extern int madvise(caddr_t, size_t, int); +#endif +#endif + +#define SWITCH_XML_WS "\t\r\n " // whitespace +#define SWITCH_XML_ERRL 128 // maximum error string length + +static int preprocess(const char *cwd, const char *file, int write_fd, int rlevel); + +typedef struct switch_xml_root *switch_xml_root_t; +struct switch_xml_root { // additional data for the root tag + struct switch_xml xml; // is a super-struct built on top of switch_xml struct + switch_xml_t cur; // current xml tree insertion point + char *m; // original xml string + switch_size_t len; // length of allocated memory for mmap + uint8_t dynamic; + char *u; // UTF-8 conversion of string if original was UTF-16 + char *s; // start of work area + char *e; // end of work area + char **ent; // general entities (ampersand sequences) + char ***attr; // default attributes + char ***pi; // processing instructions + short standalone; // non-zero if <?xml standalone="yes"?> + char err[SWITCH_XML_ERRL]; // error string +}; + +char *SWITCH_XML_NIL[] = { NULL }; // empty, null terminated array of strings + +struct switch_xml_binding { + switch_xml_search_function_t function; + switch_xml_section_t sections; + void *user_data; + struct switch_xml_binding *next; +}; + + +static switch_xml_binding_t *BINDINGS = NULL; +static switch_xml_t MAIN_XML_ROOT = NULL; +static switch_memory_pool_t *XML_MEMORY_POOL; +static switch_mutex_t *XML_LOCK; +static switch_thread_rwlock_t *RWLOCK; +static uint32_t lock_count = 0; + +struct xml_section_t { + const char *name; + //switch_xml_section_t section; + uint32_t section; +}; + +static struct xml_section_t SECTIONS[] = { + {"result", SWITCH_XML_SECTION_RESULT}, + {"config", SWITCH_XML_SECTION_CONFIG}, + {"directory", SWITCH_XML_SECTION_DIRECTORY}, + {"dialplan", SWITCH_XML_SECTION_DIALPLAN}, + {"phrases", SWITCH_XML_SECTION_PHRASES}, + {NULL, 0} +}; + +SWITCH_DECLARE(switch_xml_section_t) switch_xml_parse_section_string(const char *str) +{ + size_t x; + char buf[1024] = ""; + //switch_xml_section_t sections = SWITCH_XML_SECTION_RESULT; + uint32_t sections = SWITCH_XML_SECTION_RESULT; + + if (str) { + for (x = 0; x < strlen(str); x++) { + buf[x] = (char) tolower((int) str[x]); + } + for (x = 0;; x++) { + if (!SECTIONS[x].name) { + break; + } + if (strstr(buf, SECTIONS[x].name)) { + sections |= SECTIONS[x].section; + } + } + } + return (switch_xml_section_t) sections; +} + +SWITCH_DECLARE(switch_status_t) switch_xml_unbind_search_function(switch_xml_binding_t **binding) +{ + switch_xml_binding_t *ptr, *last = NULL; + switch_status_t status = SWITCH_STATUS_FALSE; + + switch_mutex_lock(XML_LOCK); + for (ptr = BINDINGS; ptr; ptr = ptr->next) { + if (ptr == *binding) { + if (last) { + last->next = (*binding)->next; + } else { + BINDINGS = (*binding)->next; + } + status = SWITCH_STATUS_SUCCESS; + break; + } + last = ptr; + } + switch_mutex_unlock(XML_LOCK); + + return status; +} + +SWITCH_DECLARE(switch_status_t) switch_xml_unbind_search_function_ptr(switch_xml_search_function_t function) +{ + switch_xml_binding_t *ptr, *last = NULL; + switch_status_t status = SWITCH_STATUS_FALSE; + + switch_mutex_lock(XML_LOCK); + for (ptr = BINDINGS; ptr; ptr = ptr->next) { + if (ptr->function == function) { + if (last) { + last->next = ptr->next; + } else { + BINDINGS = ptr->next; + } + status = SWITCH_STATUS_SUCCESS; + } + last = ptr; + } + switch_mutex_unlock(XML_LOCK); + + return status; +} + +SWITCH_DECLARE(switch_status_t) switch_xml_bind_search_function(switch_xml_search_function_t function, switch_xml_section_t sections, void *user_data) +{ + switch_xml_binding_t *binding = NULL, *ptr = NULL; + assert(function != NULL); + + if (!(binding = (switch_xml_binding_t *) switch_core_alloc(XML_MEMORY_POOL, sizeof(*binding)))) { + return SWITCH_STATUS_MEMERR; + } + + binding->function = function; + binding->sections = sections; + binding->user_data = user_data; + + switch_mutex_lock(XML_LOCK); + for (ptr = BINDINGS; ptr && ptr->next; ptr = ptr->next); + + if (ptr) { + ptr->next = binding; + } else { + BINDINGS = binding; + } + switch_mutex_unlock(XML_LOCK); + + return SWITCH_STATUS_SUCCESS; +} + +SWITCH_DECLARE(switch_xml_t) switch_xml_find_child(switch_xml_t node, const char *childname, const char *attrname, const char *value) +{ + switch_xml_t p = NULL; + + if (!(childname && attrname && value)) { + return node; + } + + for (p = switch_xml_child(node, childname); p; p = p->next) { + const char *aname = switch_xml_attr(p, attrname); + if (aname && value && !strcasecmp(aname, value)) { + break; + } + } + + return p; +} + +// returns the first child tag with the given name or NULL if not found +SWITCH_DECLARE(switch_xml_t) switch_xml_child(switch_xml_t xml, const char *name) +{ + xml = (xml) ? xml->child : NULL; + while (xml && strcmp(name, xml->name)) + xml = xml->sibling; + return xml; +} + +// returns the Nth tag with the same name in the same subsection or NULL if not +// found +switch_xml_t switch_xml_idx(switch_xml_t xml, int idx) +{ + for (; xml && idx; idx--) + xml = xml->next; + return xml; +} + +// returns the value of the requested tag attribute or "" if not found +SWITCH_DECLARE(const char *) switch_xml_attr_soft(switch_xml_t xml, const char *attr) +{ + const char *ret = switch_xml_attr(xml, attr); + + return ret ? ret : ""; +} + +// returns the value of the requested tag attribute or NULL if not found +SWITCH_DECLARE(const char *) switch_xml_attr(switch_xml_t xml, const char *attr) +{ + int i = 0, j = 1; + switch_xml_root_t root = (switch_xml_root_t) xml; + + if (!xml || !xml->attr) + return NULL; + while (xml->attr[i] && strcmp(attr, xml->attr[i])) + i += 2; + if (xml->attr[i]) + return xml->attr[i + 1]; // found attribute + + while (root->xml.parent) + root = (switch_xml_root_t) root->xml.parent; // root tag + for (i = 0; root->attr[i] && strcmp(xml->name, root->attr[i][0]); i++); + if (!root->attr[i]) + return NULL; // no matching default attributes + while (root->attr[i][j] && strcmp(attr, root->attr[i][j])) + j += 3; + return (root->attr[i][j]) ? root->attr[i][j + 1] : NULL; // found default +} + +// same as switch_xml_get but takes an already initialized va_list +static switch_xml_t switch_xml_vget(switch_xml_t xml, va_list ap) +{ + char *name = va_arg(ap, char *); + int idx = -1; + + if (name && *name) { + idx = va_arg(ap, int); + xml = switch_xml_child(xml, name); + } + return (idx < 0) ? xml : switch_xml_vget(switch_xml_idx(xml, idx), ap); +} + +// Traverses the xml tree to retrieve a specific subtag. Takes a variable +// length list of tag names and indexes. The argument list must be terminated +// by either an index of -1 or an empty string tag name. Example: +// title = switch_xml_get(library, "shelf", 0, "book", 2, "title", -1); +// This retrieves the title of the 3rd book on the 1st shelf of library. +// Returns NULL if not found. +SWITCH_DECLARE(switch_xml_t) switch_xml_get(switch_xml_t xml,...) +{ + va_list ap; + switch_xml_t r; + + va_start(ap, xml); + r = switch_xml_vget(xml, ap); + va_end(ap); + return r; +} + +// returns a null terminated array of processing instructions for the given +// target +SWITCH_DECLARE(const char **) switch_xml_pi(switch_xml_t xml, const char *target) +{ + switch_xml_root_t root = (switch_xml_root_t) xml; + int i = 0; + + if (!root) + return (const char **) SWITCH_XML_NIL; + while (root->xml.parent) + root = (switch_xml_root_t) root->xml.parent; // root tag + while (root->pi[i] && strcmp(target, root->pi[i][0])) + i++; // find target + return (const char **) ((root->pi[i]) ? root->pi[i] + 1 : SWITCH_XML_NIL); +} + +// set an error string and return root +static switch_xml_t switch_xml_err(switch_xml_root_t root, char *s, const char *err, ...) +{ + va_list ap; + int line = 1; + char *t, fmt[SWITCH_XML_ERRL]; + + for (t = root->s; t && t < s; t++) + if (*t == '\n') + line++; + switch_snprintf(fmt, SWITCH_XML_ERRL, "[error near line %d]: %s", line, err); + + va_start(ap, err); + vsnprintf(root->err, SWITCH_XML_ERRL, fmt, ap); + va_end(ap); + + return &root->xml; +} + +// Recursively decodes entity and character references and normalizes new lines +// ent is a null terminated array of alternating entity names and values. set t +// to '&' for general entity decoding, '%' for parameter entity decoding, 'c' +// for cdata sections, ' ' for attribute normalization, or '*' for non-cdata +// attribute normalization. Returns s, or if the decoded string is longer than +// s, returns a malloced string that must be freed. +static char *switch_xml_decode(char *s, char **ent, char t) +{ + char *e, *r = s, *m = s; + long b, c, d, l; + + for (; *s; s++) { // normalize line endings + while (*s == '\r') { + *(s++) = '\n'; + if (*s == '\n') + memmove(s, (s + 1), strlen(s)); + } + } + + for (s = r;;) { + while (*s && *s != '&' && (*s != '%' || t != '%') && !isspace((int) (*s))) + s++; + + if (!*s) + break; + else if (t != 'c' && !strncmp(s, "&#", 2)) { // character reference + if (s[2] == 'x') + c = strtol(s + 3, &e, 16); // base 16 + else + c = strtol(s + 2, &e, 10); // base 10 + if (!c || *e != ';') { + s++; + continue; + } // not a character ref + + if (c < 0x80) + *(s++) = (char) c; // US-ASCII subset + else { // multi-byte UTF-8 sequence + for (b = 0, d = c; d; d /= 2) + b++; // number of bits in c + b = (b - 2) / 5; // number of bytes in payload + *(s++) = (char) ((0xFF << (7 - b)) | (c >> (6 * b))); // head + while (b) + *(s++) = (char) (0x80 | ((c >> (6 * --b)) & 0x3F)); // payload + } + + memmove(s, strchr(s, ';') + 1, strlen(strchr(s, ';'))); + } else if ((*s == '&' && (t == '&' || t == ' ' || t == '*')) || (*s == '%' && t == '%')) { // entity reference + for (b = 0; ent[b] && strncmp(s + 1, ent[b], strlen(ent[b])); b += 2); // find entity in entity list + + if (ent[b++]) { // found a match + if ((c = (long) strlen(ent[b])) - 1 > (e = strchr(s, ';')) - s) { + l = (d = (long) (s - r)) + c + (long) strlen(e); // new length + if (l) { + if (r == m) { + char *tmp = (char *)malloc(l); + if (tmp) { + r = strcpy(tmp, r); + } else { + if (r) free(r); + return NULL; + } + } else { + char *tmp = (char *)realloc(r, l); + if (tmp) { + r = tmp; + } else { + if (r) free(r); + return NULL; + } + } + } + e = strchr((s = r + d), ';'); // fix up pointers + } + + memmove(s + c, e + 1, strlen(e)); // shift rest of string + strncpy(s, ent[b], c); // copy in replacement text + } else + s++; // not a known entity + } else if ((t == ' ' || t == '*') && isspace((int) (*s))) + *(s++) = ' '; + else + s++; // no decoding needed + } + + if (t == '*') { // normalize spaces for non-cdata attributes + for (s = r; *s; s++) { + if ((l = (long) strspn(s, " "))) + memmove(s, s + l, strlen(s + l) + 1); + while (*s && *s != ' ') + s++; + } + if (--s >= r && *s == ' ') + *s = '\0'; // trim any trailing space + } + return r; +} + +// called when parser finds start of new tag +static void switch_xml_open_tag(switch_xml_root_t root, char *name, char **attr) +{ + switch_xml_t xml = root->cur; + + if (xml->name) + xml = switch_xml_add_child(xml, name, strlen(xml->txt)); + else + xml->name = name; // first open tag + + xml->attr = attr; + root->cur = xml; // update tag insertion point +} + +// called when parser finds character content between open and closing tag +static void switch_xml_char_content(switch_xml_root_t root, char *s, switch_size_t len, char t) +{ + switch_xml_t xml = root->cur; + char *m = s; + switch_size_t l; + + if (!xml || !xml->name || !len) + return; // sanity check + + s[len] = '\0'; // null terminate text (calling functions anticipate this) + len = strlen(s = switch_xml_decode(s, root->ent, t)) + 1; + + if (!*(xml->txt)) + xml->txt = s; // initial character content + else { // allocate our own memory and make a copy + if ((xml->flags & SWITCH_XML_TXTM)) { // allocate some space + char *tmp = (char *)realloc(xml->txt, (l = strlen(xml->txt)) + len); + if (tmp) { + xml->txt = tmp; + } else { + return; + } + } else { + char *tmp = (char *)malloc((l = strlen(xml->txt)) + len); + if (tmp) { + xml->txt = strcpy(tmp, xml->txt); + } else { + return; + } + } + strcpy(xml->txt + l, s); // add new char content + if (s != m) + free(s); // free s if it was malloced by switch_xml_decode() + } + + if (xml->txt != m) + switch_xml_set_flag(xml, SWITCH_XML_TXTM); +} + +// called when parser finds closing tag +static switch_xml_t switch_xml_close_tag(switch_xml_root_t root, char *name, char *s) +{ + if (!root->cur || !root->cur->name || strcmp(name, root->cur->name)) + return switch_xml_err(root, s, "unexpected closing tag </%s>", name); + + root->cur = root->cur->parent; + return NULL; +} + +// checks for circular entity references, returns non-zero if no circular +// references are found, zero otherwise +static int switch_xml_ent_ok(char *name, char *s, char **ent) +{ + int i; + + for (;; s++) { + while (*s && *s != '&') + s++; // find next entity reference + if (!*s) + return 1; + if (!strncmp(s + 1, name, strlen(name))) + return 0; // circular ref. + for (i = 0; ent[i] && strncmp(ent[i], s + 1, strlen(ent[i])); i += 2); + if (ent[i] && !switch_xml_ent_ok(name, ent[i + 1], ent)) + return 0; + } +} + +// called when the parser finds a processing instruction +static void switch_xml_proc_inst(switch_xml_root_t root, char *s, switch_size_t len) +{ + int i = 0, j = 1; + char *target = s; + char **sstmp; + char *stmp; + + s[len] = '\0'; // null terminate instruction + if (*(s += strcspn(s, SWITCH_XML_WS))) { + *s = '\0'; // null terminate target + s += strspn(s + 1, SWITCH_XML_WS) + 1; // skip whitespace after target + } + + if (!root) return; + + if (!strcmp(target, "xml")) { // <?xml ... ?> + if ((s = strstr(s, "standalone")) && !strncmp(s + strspn(s + 10, SWITCH_XML_WS "='\"") + 10, "yes", 3)) + root->standalone = 1; + return; + } + + if (!root->pi[0]) { + root->pi = (char ***)malloc(sizeof(char **)); + if (!root->pi) return; + *(root->pi) = NULL; //first pi + } + + while (root->pi[i] && strcmp(target, root->pi[i][0])) + i++; // find target + if (!root->pi[i]) { // new target + char ***ssstmp = (char ***)realloc(root->pi, sizeof(char **) * (i + 2)); + if (!ssstmp) return; + root->pi = ssstmp; + if (!root->pi) return; + root->pi[i] = (char **)malloc(sizeof(char *) * 3); + if (!root->pi[i]) return; + root->pi[i][0] = target; + root->pi[i][1] = (char *) (root->pi[i + 1] = NULL); // terminate pi list + root->pi[i][2] = strdup(""); // empty document position list + } + + while (root->pi[i][j]) + j++; // find end of instruction list for this target + sstmp = (char **)realloc(root->pi[i], sizeof(char *) * (j + 3)); + if (!sstmp) return; + root->pi[i] = sstmp; + stmp = (char *)realloc(root->pi[i][j + 1], j + 1); + if (!stmp) return; + root->pi[i][j + 2] = stmp; + strcpy(root->pi[i][j + 2] + j - 1, (root->xml.name) ? ">" : "<"); + root->pi[i][j + 1] = NULL; // null terminate pi list for this target + root->pi[i][j] = s; // set instruction +} + +// called when the parser finds an internal doctype subset +static short switch_xml_internal_dtd(switch_xml_root_t root, char *s, switch_size_t len) +{ + char q, *c, *t, *n = NULL, *v, **ent, **pe; + int i, j; + char **sstmp; + + pe = (char **)memcpy(malloc(sizeof(SWITCH_XML_NIL)), SWITCH_XML_NIL, sizeof(SWITCH_XML_NIL)); + + for (s[len] = '\0'; s;) { + while (*s && *s != '<' && *s != '%') + s++; // find next declaration + + if (!*s) + break; + else if (!strncmp(s, "<!ENTITY", 8)) { // parse entity definitions + c = s += strspn(s + 8, SWITCH_XML_WS) + 8; // skip white space separator + n = s + strspn(s, SWITCH_XML_WS "%"); // find name + *(s = n + strcspn(n, SWITCH_XML_WS)) = ';'; // append ; to name + + v = s + strspn(s + 1, SWITCH_XML_WS) + 1; // find value + if ((q = *(v++)) != '"' && q != '\'') { // skip externals + s = strchr(s, '>'); + continue; + } + + for (i = 0, ent = (*c == '%') ? pe : root->ent; ent[i]; i++); + sstmp = (char **)realloc(ent, (i + 3) * sizeof(char *)); // space for next ent + if (!sstmp) { + switch_xml_err(root, v, "Allocation Error!"); + break; + } + ent = sstmp; + if (*c == '%') + pe = ent; + else + root->ent = ent; + + *(++s) = '\0'; // null terminate name + if ((s = strchr(v, q))) + *(s++) = '\0'; // null terminate value + ent[i + 1] = switch_xml_decode(v, pe, '%'); // set value + ent[i + 2] = NULL; // null terminate entity list + if (!switch_xml_ent_ok(n, ent[i + 1], ent)) { // circular reference + if (ent[i + 1] != v) + free(ent[i + 1]); + switch_xml_err(root, v, "circular entity declaration &%s", n); + break; + } else + ent[i] = n; // set entity name + } else if (!strncmp(s, "<!ATTLIST", 9)) { // parse default attributes + t = s + strspn(s + 9, SWITCH_XML_WS) + 9; // skip whitespace separator + if (!*t) { + switch_xml_err(root, t, "unclosed <!ATTLIST"); + break; + } + if (*(s = t + strcspn(t, SWITCH_XML_WS ">")) == '>') + continue; + else + *s = '\0'; // null terminate tag name + for (i = 0; root->attr[i] && strcmp(n, root->attr[i][0]); i++); + + while (*(n = ++s + strspn(s, SWITCH_XML_WS)) && *n != '>') { + if (*(s = n + strcspn(n, SWITCH_XML_WS))) + *s = '\0'; // attr name + else { + switch_xml_err(root, t, "malformed <!ATTLIST"); + break; + } + + s += strspn(s + 1, SWITCH_XML_WS) + 1; // find next token + c = (strncmp(s, "CDATA", 5)) ? (char *)"*" : (char *)" "; // is it cdata? + if (!strncmp(s, "NOTATION", 8)) + s += strspn(s + 8, SWITCH_XML_WS) + 8; + s = (*s == '(') ? strchr(s, ')') : s + strcspn(s, SWITCH_XML_WS); + if (!s) { + switch_xml_err(root, t, "malformed <!ATTLIST"); + break; + } + + s += strspn(s, SWITCH_XML_WS ")"); // skip white space separator + if (!strncmp(s, "#FIXED", 6)) + s += strspn(s + 6, SWITCH_XML_WS) + 6; + if (*s == '#') { // no default value + s += strcspn(s, SWITCH_XML_WS ">") - 1; + if (*c == ' ') + continue; // cdata is default, nothing to do + v = NULL; + } else if ((*s == '"' || *s == '\'') && // default value + (s = strchr(v = s + 1, *s))) + *s = '\0'; + else { + switch_xml_err(root, t, "malformed <!ATTLIST"); + break; + } + + if (!root->attr[i]) { // new tag name + root->attr = (!i) ? (char ***)malloc(2 * sizeof(char **)) + : (char ***)realloc(root->attr, (i + 2) * sizeof(char **)); + root->attr[i] = (char **)malloc(2 * sizeof(char *)); + root->attr[i][0] = t; // set tag name + root->attr[i][1] = (char *) (root->attr[i + 1] = NULL); + } + + for (j = 1; root->attr[i][j]; j += 3); // find end of list + sstmp = (char **)realloc(root->attr[i], (j + 4) * sizeof(char *)); + + if (!sstmp) { + switch_xml_err(root, t, "Allocation Error!"); + break; + } + + root->attr[i] = sstmp; + root->attr[i][j + 3] = NULL; // null terminate list + root->attr[i][j + 2] = c; // is it cdata? + root->attr[i][j + 1] = (v) ? switch_xml_decode(v, root->ent, *c) + : NULL; + root->attr[i][j] = n; // attribute name + } + } else if (!strncmp(s, "<!--", 4)) + s = strstr(s + 4, "-->"); // comments + else if (!strncmp(s, "<?", 2)) { // processing instructions + if ((s = strstr(c = s + 2, "?>"))) + switch_xml_proc_inst(root, c, s++ - c); + } else if (*s == '<') + s = strchr(s, '>'); // skip other declarations + else if (*(s++) == '%' && !root->standalone) + break; + } + + free(pe); + return !*root->err; +} + +// Converts a UTF-16 string to UTF-8. Returns a new string that must be freed +// or NULL if no conversion was needed. +static char *switch_xml_str2utf8(char **s, switch_size_t *len) +{ + char *u; + switch_size_t l = 0, sl, max = *len; + long c, d; + int b, be = (**s == '\xFE') ? 1 : (**s == '\xFF') ? 0 : -1; + + if (be == -1) + return NULL; // not UTF-16 + + u = (char *)malloc(max); + for (sl = 2; sl < *len - 1; sl += 2) { + c = (be) ? (((*s)[sl] & 0xFF) << 8) | ((*s)[sl + 1] & 0xFF) //UTF-16BE + : (((*s)[sl + 1] & 0xFF) << 8) | ((*s)[sl] & 0xFF); //UTF-16LE + if (c >= 0xD800 && c <= 0xDFFF && (sl += 2) < *len - 1) { // high-half + d = (be) ? (((*s)[sl] & 0xFF) << 8) | ((*s)[sl + 1] & 0xFF) + : (((*s)[sl + 1] & 0xFF) << 8) | ((*s)[sl] & 0xFF); + c = (((c & 0x3FF) << 10) | (d & 0x3FF)) + 0x10000; + } + + while (l + 6 > max) { + char *tmp; + tmp = (char *)realloc(u, max += SWITCH_XML_BUFSIZE); + if (!tmp) return NULL; + u = tmp; + } + if (c < 0x80) + u[l++] = (char) c; // US-ASCII subset + else { // multi-byte UTF-8 sequence + for (b = 0, d = c; d; d /= 2) + b++; // bits in c + b = (b - 2) / 5; // bytes in payload + u[l++] = (char) ((0xFF << (7 - b)) | (c >> (6 * b))); // head + while (b) + u[l++] = (char) (0x80 | ((c >> (6 * --b)) & 0x3F)); // payload + } + } + return *s = (char *)realloc(u, *len = l); +} + +// frees a tag attribute list +static void switch_xml_free_attr(char **attr) +{ + int i = 0; + char *m; + + if (!attr || attr == SWITCH_XML_NIL) + return; // nothing to free + while (attr[i]) + i += 2; // find end of attribute list + m = attr[i + 1]; // list of which names and values are malloced + for (i = 0; m[i]; i++) { + if (m[i] & SWITCH_XML_NAMEM) + free(attr[i * 2]); + if (m[i] & SWITCH_XML_TXTM) + free(attr[(i * 2) + 1]); + } + free(m); + free(attr); +} + +// parse the given xml string and return an switch_xml structure +SWITCH_DECLARE(switch_xml_t) switch_xml_parse_str(char *s, switch_size_t len) +{ + switch_xml_root_t root = (switch_xml_root_t) switch_xml_new(NULL); + char q, e, *d, **attr, **a = NULL; // initialize a to avoid compile warning + int l, i, j; + + root->m = s; + if (!len) + return switch_xml_err(root, s, "root tag missing"); + root->u = switch_xml_str2utf8(&s, &len); // convert utf-16 to utf-8 + root->e = (root->s = s) + len; // record start and end of work area + + e = s[len - 1]; // save end char + s[len - 1] = '\0'; // turn end char into null terminator + + while (*s && *s != '<') + s++; // find first tag + if (!*s) + return switch_xml_err(root, s, "root tag missing"); + + for (;;) { + attr = (char **) SWITCH_XML_NIL; + d = ++s; + + if (isalpha((int) (*s)) || *s == '_' || *s == ':' || (int8_t) *s < '\0') { // new tag + if (!root->cur) + return switch_xml_err(root, d, "markup outside of root element"); + + s += strcspn(s, SWITCH_XML_WS "/>"); + while (isspace((int) (*s))) + *(s++) = '\0'; // null terminate tag name + + if (*s && *s != '/' && *s != '>') // find tag in default attr list + for (i = 0; (a = root->attr[i]) && strcmp(a[0], d); i++); + + for (l = 0; *s && *s != '/' && *s != '>'; l += 2) { // new attrib + attr = (l) ? (char **)realloc(attr, (l + 4) * sizeof(char *)) + : (char **)malloc(4 * sizeof(char *)); // allocate space + attr[l + 3] = (l) ? (char *)realloc(attr[l + 1], (l / 2) + 2) + : (char *)malloc(2); // mem for list of maloced vals + strcpy(attr[l + 3] + (l / 2), " "); // value is not malloced + attr[l + 2] = NULL; // null terminate list + attr[l + 1] = (char *)""; // temporary attribute value + attr[l] = s; // set attribute name + + s += strcspn(s, SWITCH_XML_WS "=/>"); + if (*s == '=' || isspace((int) (*s))) { + *(s++) = '\0'; // null terminate tag attribute name + q = *(s += strspn(s, SWITCH_XML_WS "=")); + if (q == '"' || q == '\'') { // attribute value + attr[l + 1] = ++s; + while (*s && *s != q) + s++; + if (*s) + *(s++) = '\0'; // null terminate attribute val + else { + switch_xml_free_attr(attr); + return switch_xml_err(root, d, "missing %c", q); + } + + for (j = 1; a && a[j] && strcmp(a[j], attr[l]); j += 3); + attr[l + 1] = switch_xml_decode(attr[l + 1], root->ent, (a && a[j]) ? *a[j + 2] : ' '); + if (attr[l + 1] < d || attr[l + 1] > s) + attr[l + 3][l / 2] = SWITCH_XML_TXTM; // value malloced + } + } + while (isspace((int) (*s))) + s++; + } + + if (*s == '/') { // self closing tag + *(s++) = '\0'; + if ((*s && *s != '>') || (!*s && e != '>')) { + if (l) + switch_xml_free_attr(attr); + return switch_xml_err(root, d, "missing >"); + } + switch_xml_open_tag(root, d, attr); + switch_xml_close_tag(root, d, s); + } else if ((q = *s) == '>' || (!*s && e == '>')) { // open tag + *s = '\0'; // temporarily null terminate tag name + switch_xml_open_tag(root, d, attr); + *s = q; + } else { + if (l) + switch_xml_free_attr(attr); + return switch_xml_err(root, d, "missing >"); + } + } else if (*s == '/') { // close tag + s += strcspn(d = s + 1, SWITCH_XML_WS ">") + 1; + if (!(q = *s) && e != '>') + return switch_xml_err(root, d, "missing >"); + *s = '\0'; // temporarily null terminate tag name + if (switch_xml_close_tag(root, d, s)) + return &root->xml; + if (isspace((int) (*s = q))) + s += strspn(s, SWITCH_XML_WS); + } else if (!strncmp(s, "!--", 3)) { // xml comment + if (!(s = strstr(s + 3, "--")) || (*(s += 2) != '>' && *s) || (!*s && e != '>')) + return switch_xml_err(root, d, "unclosed <!--"); + } else if (!strncmp(s, "![CDATA[", 8)) { // cdata + if ((s = strstr(s, "]]>"))) + switch_xml_char_content(root, d + 8, (s += 2) - d - 10, 'c'); + else + return switch_xml_err(root, d, "unclosed <![CDATA["); + } else if (!strncmp(s, "!DOCTYPE", 8)) { // dtd + for (l = 0; *s && ((!l && *s != '>') || (l && (*s != ']' || *(s + strspn(s + 1, SWITCH_XML_WS) + 1) != '>'))); l = (*s == '[') ? 1 : l) + s += strcspn(s + 1, "[]>") + 1; + if (!*s && e != '>') + return switch_xml_err(root, d, "unclosed <!DOCTYPE"); + d = (l) ? strchr(d, '[') + 1 : d; + if (l && !switch_xml_internal_dtd(root, d, s++ - d)) + return &root->xml; + } else if (*s == '?') { // <?...?> processing instructions + do { + s = strchr(s, '?'); + } while (s && *(++s) && *s != '>'); + if (!s || (!*s && e != '>')) + return switch_xml_err(root, d, "unclosed <?"); + else + switch_xml_proc_inst(root, d + 1, s - d - 2); + } else + return switch_xml_err(root, d, "unexpected <"); + + if (!s || !*s) + break; + *s = '\0'; + d = ++s; + if (*s && *s != '<') { // tag character content + while (*s && *s != '<') + s++; + if (*s) + switch_xml_char_content(root, d, s - d, '&'); + else + break; + } else if (!*s) + break; + } + + if (!root->cur) + return &root->xml; + else if (!root->cur->name) + return switch_xml_err(root, d, "root tag missing"); + else + return switch_xml_err(root, d, "unclosed tag <%s>", root->cur->name); +} + +// Wrapper for switch_xml_parse_str() that accepts a file stream. Reads the entire +// stream into memory and then parses it. For xml files, use switch_xml_parse_file() +// or switch_xml_parse_fd() +SWITCH_DECLARE(switch_xml_t) switch_xml_parse_fp(FILE * fp) +{ + switch_xml_root_t root; + switch_size_t l, len = 0; + char *s; + + if (!(s = (char *)malloc(SWITCH_XML_BUFSIZE))) + return NULL; + do { + len += (l = fread((s + len), 1, SWITCH_XML_BUFSIZE, fp)); + if (l == SWITCH_XML_BUFSIZE) { + char *tmp = (char *)realloc(s, len + SWITCH_XML_BUFSIZE); + if (!tmp) { + free(s); + return NULL; + } + s = tmp; + } + } while (s && l == SWITCH_XML_BUFSIZE); + + if (!s) + return NULL; + root = (switch_xml_root_t) switch_xml_parse_str(s, len); + root->dynamic = 1; // so we know to free s in switch_xml_free() + return &root->xml; +} + +// A wrapper for switch_xml_parse_str() that accepts a file descriptor. First +// attempts to mem map the file. Failing that, reads the file into memory. +// Returns NULL on failure. +SWITCH_DECLARE(switch_xml_t) switch_xml_parse_fd(int fd) +{ + switch_xml_root_t root; + struct stat st; + switch_size_t l; + void *m; + + if (fd < 0) + return NULL; + fstat(fd, &st); + +#ifdef HAVE_MMAP + l = (st.st_size + sysconf(_SC_PAGESIZE) - 1) & ~(sysconf(_SC_PAGESIZE) - 1); + if ((m = mmap(NULL, l, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0)) != MAP_FAILED) { + madvise(m, l, MADV_SEQUENTIAL); // optimize for sequential access + root = (switch_xml_root_t) switch_xml_parse_str(m, st.st_size); + madvise(m, root->len = l, MADV_NORMAL); // put it back to normal + } else { // mmap failed, read file into memory +#endif // HAVE_MMAP + m = malloc(st.st_size); + if (!m) return NULL; + l = read(fd, m, st.st_size); + root = (switch_xml_root_t) switch_xml_parse_str((char *)m, l); + root->dynamic = 1; // so we know to free s in switch_xml_free() +#ifdef HAVE_MMAP + } +#endif // HAVE_MMAP + return &root->xml; +} + +static char *expand_vars(char *buf, char *ebuf, switch_size_t elen, switch_size_t *newlen) +{ + char *var, *val; + char *rp = buf; + char *wp = ebuf; + char *ep = ebuf + elen - 1; + + if (!(var = strstr(rp, "$${"))) { + *newlen = strlen(buf); + return buf; + } + + while (*rp && wp < ep) { + + if (*rp == '$' && *(rp + 1) == '$' && *(rp + 2) == '{') { + char *e = strchr(rp, '}'); + + if (e) { + rp += 3; + var = rp; + *e++ = '\0'; + rp = e; + if ((val = switch_core_get_variable(var))) { + char *p; + for (p = val; p && *p && wp <= ep; p++) { + *wp++ = *p; + } + } + } + } + + *wp++ = *rp++; + } + *wp++ = '\0'; + *newlen = strlen(ebuf); + + return ebuf; +} + +static int preprocess_glob(const char *cwd, const char *pattern, int write_fd, int rlevel) +{ + char *full_path = NULL; + char *dir_path = NULL, *e = NULL; + glob_t glob_data; + size_t n; + + if (!switch_is_file_path(pattern)) { + full_path = switch_mprintf("%s%s%s", cwd, SWITCH_PATH_SEPARATOR, pattern); + pattern = full_path; + } + + if(glob(pattern, GLOB_NOCHECK, NULL, &glob_data) != 0) { + if (stderr) { + fprintf(stderr, "Error including %s\n", pattern); + } + goto end; + } + + for (n = 0; n < glob_data.gl_pathc; ++n) { + dir_path = strdup(glob_data.gl_pathv[n]); + switch_assert(dir_path); + if ((e = strrchr(dir_path, *SWITCH_PATH_SEPARATOR))) { + *e = '\0'; + } + if (preprocess(dir_path, glob_data.gl_pathv[n], write_fd, rlevel) < 0) { + const char *reason = strerror(errno); + if (rlevel > 100) { + reason = "Maximum recursion limit reached"; + } + fprintf(stderr, "Error including %s (%s)\n", pattern, reason); + } + } + globfree(&glob_data); + + end: + + switch_safe_free(full_path); + + return write_fd; +} + +static int preprocess(const char *cwd, const char *file, int write_fd, int rlevel) +{ + int read_fd = -1; + switch_size_t cur = 0, ml = 0; + char *q, *cmd, buf[2048], ebuf[8192]; + char *tcmd, *targ; + + if ((read_fd = open(file, O_RDONLY, 0)) < 0) { + return read_fd; + } + + if (rlevel > 100) { + return -1; + } + + while ((cur = switch_fd_read_line(read_fd, buf, sizeof(buf))) > 0) { + char *arg, *e; + char *bp = expand_vars(buf, ebuf, sizeof(ebuf), &cur); + + /* we ignore <include> or </include> for the sake of validators as well as <?xml version="1.0"?> type stuff */ + if (strstr(buf, "<include>") || strstr(buf, "</include>") || strstr(buf, "<?")) { + continue; + } + + if (ml) { + if ((e = strstr(buf, "-->"))) { + ml = 0; + bp = e + 3; + cur = strlen(bp); + } else { + continue; + } + } + + if ((tcmd = (char *)switch_stristr("X-pre-process", bp))) { + if (*(tcmd-1) != '<') { + continue; + } + if ((e = strstr(tcmd, "/>"))) { + *e += 2; + *e = '\0'; + if(write(write_fd, e, (unsigned) strlen(e)) != (int) strlen(e)) { + switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Short write!\n"); + } + } + + if (!(tcmd = (char *)switch_stristr("cmd", tcmd))) { + continue; + } + + if (!(tcmd = (char *)switch_stristr("=", tcmd))) { + continue; + } + + if (!(tcmd = (char *)switch_stristr("\"", tcmd))) { + continue; + } + + tcmd++; + + + if ((e = strchr(tcmd, '"'))) { + *e++ = '\0'; + } + + if (!(targ = (char *)switch_stristr("data", e))) { + continue; + } + + if (!(targ = (char *)switch_stristr("=", targ))) { + continue; + } + + if (!(targ = (char *)switch_stristr("\"", targ))) { + continue; + } + + targ++; + + if ((e = strchr(targ, '"'))) { + *e++ = '\0'; + } + + if (!strcasecmp(tcmd, "set")) { + char *name = (char *)targ; + char *val = strchr(name, '='); + + if (val) { + char *ve = val++; + while (*val && *val == ' ') { + val++; + } + *ve-- = '\0'; + while (*ve && *ve == ' ') { + *ve-- = '\0'; + } + } + + if (name && val) { + switch_core_set_variable(name, val); + } + + } else if (!strcasecmp(tcmd, "include")) { + preprocess_glob(cwd, targ, write_fd, rlevel + 1); + } + + continue; + } + + if ((cmd = strstr(bp, "<!--#"))) { + if(write(write_fd, bp, (unsigned) (cmd - bp)) != (cmd - bp)) { + switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Short write!\n"); + } + if ((e = strstr(cmd, "-->"))) { + *e = '\0'; + e += 3; + if(write(write_fd, e, (unsigned) strlen(e)) != (int) strlen(e)) { + switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Short write!\n"); + } + } else { + ml++; + } + + cmd += 5; + if ((e = strchr(cmd, '\r')) || (e = strchr(cmd, '\n'))) { + *e = '\0'; + } + + if ((arg = strchr(cmd, ' '))) { + *arg++ = '\0'; + if ((q = strchr(arg, '"'))) { + char *qq = q + 1; + + if ((qq = strchr(qq, '"'))) { + *qq = '\0'; + arg = q + 1; + } + } + + if (!strcasecmp(cmd, "set")) { + char *name = arg; + char *val = strchr(name, '='); + + if (val) { + char *ve = val++; + while (*val && *val == ' ') { + val++; + } + *ve-- = '\0'; + while (*ve && *ve == ' ') { + *ve-- = '\0'; + } + } + + if (name && val) { + switch_core_set_variable(name, val); + } + + } else if (!strcasecmp(cmd, "include")) { + preprocess_glob(cwd, arg, write_fd, rlevel + 1); + } + } + + continue; + } + + if(write(write_fd, bp, (unsigned) cur) != (int) cur) { + switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Short write!\n"); + } + } + + close(read_fd); + return write_fd; +} + +SWITCH_DECLARE(switch_xml_t) switch_xml_parse_file_simple(const char *file) +{ + int fd = -1; + struct stat st; + switch_size_t l; + void *m; + switch_xml_root_t root; + + if ((fd = open(file, O_RDONLY, 0)) > -1) { + fstat(fd, &st); + m = malloc(st.st_size); + switch_assert(m); + l = read(fd, m, st.st_size); + root = (switch_xml_root_t) switch_xml_parse_str((char *)m, l); + root->dynamic = 1; + close(fd); + return &root->xml; + } + + return NULL; +} + +SWITCH_DECLARE(switch_xml_t) switch_xml_parse_file(const char *file) +{ + int fd = -1, write_fd = -1; + switch_xml_t xml = NULL; + char *new_file = NULL; + const char *abs; + + if ((abs = strrchr(file, '/')) || (abs = strrchr(file, '\\'))) { + abs++; + } else { + abs = file; + } + + if (!(new_file = switch_mprintf("%s%s%s.fsxml", SWITCH_GLOBAL_dirs.log_dir, SWITCH_PATH_SEPARATOR, abs))) { + return NULL; + } + + if ((write_fd = open(new_file, O_WRONLY | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR)) < 0) { + goto done; + } + + if (preprocess(SWITCH_GLOBAL_dirs.conf_dir, file, write_fd, 0) > -1) { + close(write_fd); + write_fd = -1; + if ((fd = open(new_file, O_RDONLY, 0)) > -1) { + if ((xml = switch_xml_parse_fd(fd))) { + xml->free_path = new_file; + new_file = NULL; + } + close(fd); + fd = -1; + } + } + + done: + if (write_fd > -1) { + close(write_fd); + } + if (fd > -1) { + close(fd); + } + switch_safe_free(new_file); + return xml; +} + +SWITCH_DECLARE(switch_status_t) switch_xml_locate(const char *section, + const char *tag_name, + const char *key_name, const char *key_value, switch_xml_t * root, switch_xml_t * node, + switch_event_t *params) +{ + switch_xml_t conf = NULL; + switch_xml_t tag = NULL; + switch_xml_t xml = NULL; + switch_xml_binding_t *binding; + uint8_t loops = 0; + + switch_mutex_lock(XML_LOCK); + + for (binding = BINDINGS; binding; binding = binding->next) { + switch_xml_section_t sections = switch_xml_parse_section_string(section); + + if (binding->sections && !(sections & binding->sections)) { + continue; + } + + if ((xml = binding->function(section, tag_name, key_name, key_value, params, binding->user_data))) { + const char *err = NULL; + + err = switch_xml_error(xml); + if (switch_strlen_zero(err)) { + if ((conf = switch_xml_find_child(xml, "section", "name", "result"))) { + switch_xml_t p; + const char *aname; + + if ((p = switch_xml_child(conf, "result"))) { + aname = switch_xml_attr(p, "status"); + if (aname && !strcasecmp(aname, "not found")) { + switch_xml_free(xml); + xml = NULL; + continue; + } + } + } + break; + } else { + switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error[%s]\n", err); + switch_xml_free(xml); + xml = NULL; + } + } + } + switch_mutex_unlock(XML_LOCK); + + for (;;) { + if (!xml) { + if (!(xml = switch_xml_root())) { + *node = NULL; + *root = NULL; + return SWITCH_STATUS_FALSE; + } + } + + if ((conf = switch_xml_find_child(xml, "section", "name", section)) && (tag = switch_xml_find_child(conf, tag_name, key_name, key_value))) { + *node = tag; + *root = xml; + return SWITCH_STATUS_SUCCESS; + } else { + switch_xml_free(xml); + xml = NULL; + *node = NULL; + *root = NULL; + if (loops++ > 1) { + break; + } + } + } + + return SWITCH_STATUS_FALSE; +} + +SWITCH_DECLARE(switch_status_t) switch_xml_locate_domain(const char *domain_name, switch_event_t *params, switch_xml_t *root, switch_xml_t *domain) +{ + switch_event_t *my_params = NULL; + switch_status_t status; + *domain = NULL; + + if (!params) { + switch_event_create(&my_params, SWITCH_EVENT_MESSAGE); + switch_assert(my_params); + switch_event_add_header_string(my_params, SWITCH_STACK_BOTTOM, "domain", domain_name); + params = my_params; + } + + status = switch_xml_locate("directory", "domain", "name", domain_name, root, domain, params); + if (my_params) { + switch_event_destroy(&my_params); + } + return status; +} + +SWITCH_DECLARE(switch_status_t) switch_xml_locate_user(const char *key, + const char *user_name, + const char *domain_name, + const char *ip, + switch_xml_t *root, + switch_xml_t *domain, + switch_xml_t *user, + switch_event_t *params) +{ + switch_status_t status; + *root = NULL; + *user = NULL; + *domain = NULL; + + if (params) { + switch_event_add_header_string(params, SWITCH_STACK_BOTTOM, "key", key); + + if (user_name) { + switch_event_add_header_string(params, SWITCH_STACK_BOTTOM, "user", user_name); + } + + if (domain_name) { + switch_event_add_header_string(params, SWITCH_STACK_BOTTOM, "domain", domain_name); + } + + if (ip) { + switch_event_add_header_string(params, SWITCH_STACK_BOTTOM, "ip", ip); + } + } + + + if ((status = switch_xml_locate_domain(domain_name, params, root, domain)) != SWITCH_STATUS_SUCCESS) { + return status; + } + + if (ip) { + if ((*user = switch_xml_find_child(*domain, "user", "ip", ip))) { + return SWITCH_STATUS_SUCCESS; + } + } + + if (user_name) { + + if (params && switch_event_get_header(params, (char *) "mailbox")) { + if ((*user = switch_xml_find_child(*domain, "user", "mailbox", user_name))) { + return SWITCH_STATUS_SUCCESS; + } + } + + if ((*user = switch_xml_find_child(*domain, "user", key, user_name))) { + return SWITCH_STATUS_SUCCESS; + } + + } + + return SWITCH_STATUS_FALSE; +} + +SWITCH_DECLARE(switch_xml_t) switch_xml_root(void) +{ + lock_count++; + switch_thread_rwlock_rdlock(RWLOCK); + return MAIN_XML_ROOT; +} + +static char not_so_threadsafe_error_buffer[256] = ""; + +SWITCH_DECLARE(switch_xml_t) switch_xml_open_root(uint8_t reload, const char **err) +{ + char path_buf[1024]; + uint8_t hasmain = 0, errcnt = 0; + switch_xml_t new_main; + + switch_mutex_lock(XML_LOCK); + + if (MAIN_XML_ROOT) { + hasmain++; + + if (!reload) { + switch_mutex_unlock(XML_LOCK); + return switch_xml_root(); + } + switch_thread_rwlock_wrlock(RWLOCK); + } + + switch_snprintf(path_buf, sizeof(path_buf), "%s%s%s", SWITCH_GLOBAL_dirs.conf_dir, SWITCH_PATH_SEPARATOR, "freeswitch.xml"); + if ((new_main = switch_xml_parse_file(path_buf))) { + *err = switch_xml_error(new_main); + switch_copy_string(not_so_threadsafe_error_buffer, *err, sizeof(not_so_threadsafe_error_buffer)); + *err = not_so_threadsafe_error_buffer; + if (!switch_strlen_zero(*err)) { + switch_xml_free(new_main); + new_main = NULL; + errcnt++; + } else { + switch_xml_t old_root; + *err = "Success"; + old_root = MAIN_XML_ROOT; + MAIN_XML_ROOT = new_main; + switch_set_flag(MAIN_XML_ROOT, SWITCH_XML_ROOT); + switch_xml_free(old_root); + } + } else { + *err = "Cannot Open log directory or XML Root!"; + errcnt++; + } + + if (hasmain) { + switch_thread_rwlock_unlock(RWLOCK); + } + switch_mutex_unlock(XML_LOCK); + + if (errcnt == 0) { + switch_event_t *event; + if (switch_event_create(&event, SWITCH_EVENT_RELOADXML) == SWITCH_STATUS_SUCCESS) { + if (switch_event_fire(&event) != SWITCH_STATUS_SUCCESS) { + switch_event_destroy(&event); + } + } + return switch_xml_root(); + } + + return NULL; +} + +SWITCH_DECLARE(switch_status_t) switch_xml_init(switch_memory_pool_t *pool, const char **err) +{ + switch_xml_t xml; + XML_MEMORY_POOL = pool; + *err = "Success"; + + switch_mutex_init(&XML_LOCK, SWITCH_MUTEX_NESTED, XML_MEMORY_POOL); + switch_thread_rwlock_create(&RWLOCK, XML_MEMORY_POOL); + + assert(pool != NULL); + + if ((xml = switch_xml_open_root(FALSE, err))) { + switch_xml_free(xml); + return SWITCH_STATUS_SUCCESS; + } else { + return SWITCH_STATUS_FALSE; + } +} + +SWITCH_DECLARE(switch_status_t) switch_xml_destroy(void) +{ + if (MAIN_XML_ROOT) { + switch_xml_t xml = MAIN_XML_ROOT; + MAIN_XML_ROOT = NULL; + switch_xml_free(xml); + return SWITCH_STATUS_SUCCESS; + } + + return SWITCH_STATUS_FALSE; +} + +SWITCH_DECLARE(switch_xml_t) switch_xml_open_cfg(const char *file_path, switch_xml_t *node, switch_event_t *params) +{ + switch_xml_t xml = NULL, cfg = NULL; + + *node = NULL; + + assert(MAIN_XML_ROOT != NULL); + + if (switch_xml_locate("configuration", "configuration", "name", file_path, &xml, &cfg, params) == SWITCH_STATUS_SUCCESS) { + *node = cfg; + } + + return xml; + +} + +// Encodes ampersand sequences appending the results to *dst, reallocating *dst +// if length excedes max. a is non-zero for attribute encoding. Returns *dst +static char *switch_xml_ampencode(const char *s, switch_size_t len, char **dst, switch_size_t *dlen, switch_size_t *max, short a) +{ + const char *e = NULL; + int immune = 0; + + if (!(s && *s)) return *dst; + + if (len) { + e = s + len; + } + + while (s != e) { + while (*dlen + 10 > *max) { + char *tmp = (char *)realloc(*dst, *max += SWITCH_XML_BUFSIZE); + if (!tmp) return *dst; + *dst = tmp; + } + + if (immune) { + if (*s == '\0') { + return *dst; + } + (*dst)[(*dlen)++] = *s; + } else + switch (*s) { + case '\0': + return *dst; + case '&': + *dlen += sprintf(*dst + *dlen, "&"); + break; + case '<': + if (*(s+1) == '!') { + (*dst)[(*dlen)++] = *s; + immune++; + break; + } + *dlen += sprintf(*dst + *dlen, "<"); + break; + case '>': + *dlen += sprintf(*dst + *dlen, ">"); + break; + case '"': + *dlen += sprintf(*dst + *dlen, (a) ? """ : "\""); + break; + case '\n': + *dlen += sprintf(*dst + *dlen, (a) ? " " : "\n"); + break; + case '\t': + *dlen += sprintf(*dst + *dlen, (a) ? " " : "\t"); + break; + case '\r': + *dlen += sprintf(*dst + *dlen, " "); + break; + default: + (*dst)[(*dlen)++] = *s; + } + s++; + } + return *dst; +} + +#define XML_INDENT " " +// Recursively converts each tag to xml appending it to *s. Reallocates *s if +// its length excedes max. start is the location of the previous tag in the +// parent tag's character content. Returns *s. +static char *switch_xml_toxml_r(switch_xml_t xml, char **s, switch_size_t *len, switch_size_t *max, switch_size_t start, char ***attr, uint32_t * count) +{ + int i, j; + char *txt = (char *)(xml->parent) ? xml->parent->txt : (char *)""; + switch_size_t off = 0; + uint32_t lcount = 0; + + // parent character content up to this tag + *s = switch_xml_ampencode(txt + start, xml->off - start, s, len, max, 0); + + while (*len + strlen(xml->name) + 5 + (strlen(XML_INDENT) * (*count)) + 1 > *max) { // reallocate s + char *tmp = (char *)realloc(*s, *max += SWITCH_XML_BUFSIZE); + if (!tmp) return *s; + *s = tmp; + } + + if (*(*s + (*len) - 1) == '>') { + *len += sprintf(*s + *len, "\n"); // indent + } + for (lcount = 0; lcount < *count; lcount++) { + *len += sprintf(*s + *len, "%s", XML_INDENT); // indent + } + + *len += sprintf(*s + *len, "<%s", xml->name); // open tag + for (i = 0; xml->attr[i]; i += 2) { // tag attributes + if (switch_xml_attr(xml, xml->attr[i]) != xml->attr[i + 1]) + continue; + while (*len + strlen(xml->attr[i]) + 7 + (strlen(XML_INDENT) * (*count)) > *max) { // reallocate s + char *tmp = (char *)realloc(*s, *max += SWITCH_XML_BUFSIZE); + if (!tmp) return *s; + *s = tmp; + } + + *len += sprintf(*s + *len, " %s=\"", xml->attr[i]); + switch_xml_ampencode(xml->attr[i + 1], 0, s, len, max, 1); + *len += sprintf(*s + *len, "\""); + } + + for (i = 0; attr[i] && strcmp(attr[i][0], xml->name); i++); + for (j = 1; attr[i] && attr[i][j]; j += 3) { // default attributes + if (!attr[i][j + 1] || switch_xml_attr(xml, attr[i][j]) != attr[i][j + 1]) + continue; // skip duplicates and non-values + while (*len + strlen(attr[i][j]) + 8 + (strlen(XML_INDENT) * (*count)) > *max) { // reallocate s + char *tmp = (char *)realloc(*s, *max += SWITCH_XML_BUFSIZE); + if (!tmp) return *s; + *s = tmp; + } + + *len += sprintf(*s + *len, " %s=\"", attr[i][j]); + switch_xml_ampencode(attr[i][j + 1], 0, s, len, max, 1); + *len += sprintf(*s + *len, "\""); + } + + *len += sprintf(*s + *len, (xml->child || xml->txt) ? ">" : "/>\n"); + + if (xml->child) { + (*count)++; + *s = switch_xml_toxml_r(xml->child, s, len, max, 0, attr, count); + + } else { + *s = switch_xml_ampencode(xml->txt, 0, s, len, max, 0); //data + } + + while (*len + strlen(xml->name) + 5 + (strlen(XML_INDENT) * (*count)) > *max) { // reallocate s + char *tmp = (char *)realloc(*s, *max += SWITCH_XML_BUFSIZE); + if (!tmp) return *s; + *s = tmp; + } + + if (xml->child || xml->txt) { + if (*(*s + (*len) - 1) == '\n') { + for (lcount = 0; lcount < *count; lcount++) { + *len += sprintf(*s + *len, "%s", XML_INDENT); // indent + } + } + *len += sprintf(*s + (*len), "</%s>\n", xml->name); // close tag + } + + while (txt[off] && off < xml->off) + off++; // make sure off is within bounds + + if (xml->ordered) { + return switch_xml_toxml_r(xml->ordered, s, len, max, off, attr, count); + + } else { + if (*count > 0) + (*count)--; + return switch_xml_ampencode(txt + off, 0, s, len, max, 0); + } +} + +SWITCH_DECLARE(char *) switch_xml_toxml(switch_xml_t xml, switch_bool_t prn_header) +{ + char *s; + s = (char *)malloc(SWITCH_XML_BUFSIZE); + return switch_xml_toxml_buf(xml, s, SWITCH_XML_BUFSIZE, 0, prn_header); +} + +// converts an switch_xml structure back to xml, returning a string of xml date that +// must be freed +SWITCH_DECLARE(char *) switch_xml_toxml_buf(switch_xml_t xml, char *buf, switch_size_t buflen, switch_size_t offset, switch_bool_t prn_header) +{ + switch_xml_t p = (xml) ? xml->parent : NULL, o = (xml) ? xml->ordered : NULL; + switch_xml_root_t root = (switch_xml_root_t) xml; + switch_size_t len = 0, max = buflen; + char *s, *t, *n, *r; + int i, j, k; + uint32_t count = 0; + + s = buf; + assert(s != NULL); + memset(s, 0, max); + len += offset; + if (prn_header) { + len += sprintf(s + len, "<?xml version=\"1.0\"?>\n"); + } + + if (!xml || !xml->name) { + if (!(r = (char *)realloc(s, len + 1))) { + abort(); + } + return r; + } + + while (root->xml.parent) { + root = (switch_xml_root_t) root->xml.parent; // root tag + } + + for (i = 0; !p && root->pi[i]; i++) { // pre-root processing instructions + for (k = 2; root->pi[i][k - 1]; k++); + for (j = 1; (n = root->pi[i][j]); j++) { + if (root->pi[i][k][j - 1] == '>') { + continue; // not pre-root + } + while (len + strlen(t = root->pi[i][0]) + strlen(n) + 7 > max) { + if (!(r = (char *)realloc(s, max += SWITCH_XML_BUFSIZE))) { + abort(); + } + s = r; + } + len += sprintf(s + len, "<?%s%s%s?>", t, *n ? " " : "", n); + } + } + + xml->parent = xml->ordered = NULL; + s = switch_xml_toxml_r(xml, &s, &len, &max, 0, root->attr, &count); + xml->parent = p; + xml->ordered = o; + + for (i = 0; !p && root->pi[i]; i++) { // post-root processing instructions + for (k = 2; root->pi[i][k - 1]; k++); + for (j = 1; (n = root->pi[i][j]); j++) { + if (root->pi[i][k][j - 1] == '<') { + continue; // not post-root + } + while (len + strlen(t = root->pi[i][0]) + strlen(n) + 7 > max) { + if (!(r = (char *)realloc(s, max += SWITCH_XML_BUFSIZE))) { + abort(); + } + s = r; + } + len += sprintf(s + len, "\n<?%s%s%s?>", t, *n ? " " : "", n); + } + } + + if (!(r = (char *)realloc(s, len + 1))) { + abort(); + } + + return r; +} + +// free the memory allocated for the switch_xml structure +SWITCH_DECLARE(void) switch_xml_free(switch_xml_t xml) +{ + switch_xml_root_t root = (switch_xml_root_t) xml; + int i, j; + char **a, *s; + + + if (!xml) + return; + + if (switch_test_flag(xml, SWITCH_XML_ROOT)) { + if (lock_count > 0) { + switch_thread_rwlock_unlock(RWLOCK); + lock_count--; + } + } + + if (xml == MAIN_XML_ROOT) { + return; + } + + if (xml->free_path) { + if (!switch_stristr("freeswitch.xml.fsxml", xml->free_path)) { + if (unlink(xml->free_path) != 0) { + switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "failed to delete file [%s]\n", xml->free_path); + } + } + switch_safe_free(xml->free_path); + } + + switch_xml_free(xml->child); + switch_xml_free(xml->ordered); + + if (!xml->parent) { // free root tag allocations + for (i = 10; root->ent[i]; i += 2) // 0 - 9 are default entites (<>&"') + if ((s = root->ent[i + 1]) < root->s || s > root->e) + free(s); + free(root->ent); // free list of general entities + + for (i = 0; (a = root->attr[i]); i++) { + for (j = 1; a[j++]; j += 2) // free malloced attribute values + if (a[j] && (a[j] < root->s || a[j] > root->e)) + free(a[j]); + free(a); + } + if (root->attr[0]) + free(root->attr); // free default attribute list + + for (i = 0; root->pi[i]; i++) { + for (j = 1; root->pi[i][j]; j++); + free(root->pi[i][j + 1]); + free(root->pi[i]); + } + if (root->pi[0]) + free(root->pi); // free processing instructions + + if (root->dynamic == 1) + free(root->m); // malloced xml data +#ifdef HAVE_MMAP + else if (root->len) + munmap(root->m, root->len); // mem mapped xml data +#endif // HAVE_MMAP + if (root->u) + free(root->u); // utf8 conversion + } + + switch_xml_free_attr(xml->attr); // tag attributes + if ((xml->flags & SWITCH_XML_TXTM)) + free(xml->txt); // character content + if ((xml->flags & SWITCH_XML_NAMEM)) + free(xml->name); // tag name + free(xml); +} + +// return parser error message or empty string if none +SWITCH_DECLARE(const char *) switch_xml_error(switch_xml_t xml) +{ + while (xml && xml->parent) + xml = xml->parent; // find root tag + return (xml) ? ((switch_xml_root_t) xml)->err : ""; +} + +// returns a new empty switch_xml structure with the given root tag name +SWITCH_DECLARE(switch_xml_t) switch_xml_new(const char *name) +{ + static const char *ent[] = { "lt;", "<", "gt;", ">", "quot;", """, + "apos;", "'", "amp;", "&", NULL + }; + switch_xml_root_t root = (switch_xml_root_t) memset(malloc(sizeof(struct switch_xml_root)), + '\0', sizeof(struct switch_xml_root)); + root->xml.name = (char *) name; + root->cur = &root->xml; + strcpy(root->err, root->xml.txt = (char *)""); + root->ent = (char **)memcpy(malloc(sizeof(ent)), ent, sizeof(ent)); + root->attr = root->pi = (char ***) (root->xml.attr = SWITCH_XML_NIL); + return &root->xml; +} + +// inserts an existing tag into an switch_xml structure +SWITCH_DECLARE(switch_xml_t) switch_xml_insert(switch_xml_t xml, switch_xml_t dest, switch_size_t off) +{ + switch_xml_t cur, prev, head; + + xml->next = xml->sibling = xml->ordered = NULL; + xml->off = off; + xml->parent = dest; + + if ((head = dest->child)) { // already have sub tags + if (head->off <= off) { // not first subtag + for (cur = head; cur->ordered && cur->ordered->off <= off; cur = cur->ordered); + xml->ordered = cur->ordered; + cur->ordered = xml; + } else { // first subtag + xml->ordered = head; + dest->child = xml; + } + + for (cur = head, prev = NULL; cur && strcmp(cur->name, xml->name); prev = cur, cur = cur->sibling); // find tag type + if (cur && cur->off <= off) { // not first of type + while (cur->next && cur->next->off <= off) + cur = cur->next; + xml->next = cur->next; + cur->next = xml; + } else { // first tag of this type + if (prev && cur) + prev->sibling = cur->sibling; // remove old first + xml->next = cur; // old first tag is now next + for (cur = head, prev = NULL; cur && cur->off <= off; prev = cur, cur = cur->sibling); // new sibling insert point + xml->sibling = cur; + if (prev) + prev->sibling = xml; + } + } else + dest->child = xml; // only sub tag + + return xml; +} + +// Adds a child tag. off is the offset of the child tag relative to the start +// of the parent tag's character content. Returns the child tag +SWITCH_DECLARE(switch_xml_t) switch_xml_add_child(switch_xml_t xml, const char *name, switch_size_t off) +{ + switch_xml_t child; + + if (!xml) + return NULL; + child = (switch_xml_t) memset(malloc(sizeof(struct switch_xml)), '\0', sizeof(struct switch_xml)); + child->name = (char *) name; + child->attr = SWITCH_XML_NIL; + child->off = off; + child->parent = xml; + child->txt = (char *)""; + + return switch_xml_insert(child, xml, off); +} + +// sets the character content for the given tag and returns the tag +SWITCH_DECLARE(switch_xml_t) switch_xml_set_txt(switch_xml_t xml, const char *txt) +{ + if (!xml) + return NULL; + if (xml->flags & SWITCH_XML_TXTM) + free(xml->txt); // existing txt was malloced + xml->flags &= ~SWITCH_XML_TXTM; + xml->txt = (char *) txt; + return xml; +} + +// Sets the given tag attribute or adds a new attribute if not found. A value +// of NULL will remove the specified attribute. Returns the tag given +SWITCH_DECLARE(switch_xml_t) switch_xml_set_attr(switch_xml_t xml, const char *name, const char *value) +{ + int l = 0, c; + + if (!xml) + return NULL; + while (xml->attr[l] && strcmp(xml->attr[l], name)) + l += 2; + if (!xml->attr[l]) { // not found, add as new attribute + if (!value) + return xml; // nothing to do + if (xml->attr == SWITCH_XML_NIL) { // first attribute + xml->attr = (char **)malloc(4 * sizeof(char *)); + if (!xml->attr) return NULL; + xml->attr[1] = strdup(""); // empty list of malloced names/vals + } else { + char **tmp = (char **)realloc(xml->attr, (l + 4) * sizeof(char *)); + if (!tmp) return xml; + xml->attr = tmp; + } + + xml->attr[l] = (char *) name; // set attribute name + xml->attr[l + 2] = NULL; // null terminate attribute list + xml->attr[l + 3] = (char *)realloc(xml->attr[l + 1], (c = (int) strlen(xml->attr[l + 1])) + 2); + strcpy(xml->attr[l + 3] + c, " "); // set name/value as not malloced + if (xml->flags & SWITCH_XML_DUP) + xml->attr[l + 3][c] = SWITCH_XML_NAMEM; + } else if (xml->flags & SWITCH_XML_DUP) + free((char *) name); // name was strduped + + for (c = l; xml->attr[c]; c += 2); // find end of attribute list + if (xml->attr[c + 1][l / 2] & SWITCH_XML_TXTM) + free(xml->attr[l + 1]); //old val + if (xml->flags & SWITCH_XML_DUP) + xml->attr[c + 1][l / 2] |= SWITCH_XML_TXTM; + else + xml->attr[c + 1][l / 2] &= ~SWITCH_XML_TXTM; + + if (value) + xml->attr[l + 1] = (char *) value; // set attribute value + else { // remove attribute + char **tmp; + if (xml->attr[c + 1][l / 2] & SWITCH_XML_NAMEM) + free(xml->attr[l]); + memmove(xml->attr + l, xml->attr + l + 2, (c - l + 2) * sizeof(char *)); + tmp =(char **)realloc(xml->attr, (c + 2) * sizeof(char *)); + if (!tmp) return xml; + xml->attr = tmp; + memmove(xml->attr[c + 1] + (l / 2), xml->attr[c + 1] + (l / 2) + 1, (c / 2) - (l / 2)); // fix list of which name/vals are malloced + } + xml->flags &= ~SWITCH_XML_DUP; // clear strdup() flag + + return xml; +} + +// sets a flag for the given tag and returns the tag +SWITCH_DECLARE(switch_xml_t) switch_xml_set_flag(switch_xml_t xml, switch_xml_flag_t flag) +{ + if (xml) + xml->flags |= flag; + return xml; +} + +// removes a tag along with its subtags without freeing its memory +SWITCH_DECLARE(switch_xml_t) switch_xml_cut(switch_xml_t xml) +{ + switch_xml_t cur; + + if (!xml) + return NULL; // nothing to do + if (xml->next) + xml->next->sibling = xml->sibling; // patch sibling list + + if (xml->parent) { // not root tag + cur = xml->parent->child; // find head of subtag list + if (cur == xml) + xml->parent->child = xml->ordered; // first subtag + else { // not first subtag + while (cur->ordered != xml) + cur = cur->ordered; + cur->ordered = cur->ordered->ordered; // patch ordered list + + cur = xml->parent->child; // go back to head of subtag list + if (strcmp(cur->name, xml->name)) { // not in first sibling list + while (strcmp(cur->sibling->name, xml->name)) + cur = cur->sibling; + if (cur->sibling == xml) { // first of a sibling list + cur->sibling = (xml->next) ? xml->next : cur->sibling->sibling; + } else + cur = cur->sibling; // not first of a sibling list + } + + while (cur->next && cur->next != xml) + cur = cur->next; + if (cur->next) + cur->next = cur->next->next; // patch next list + } + } + xml->ordered = xml->sibling = xml->next = NULL; // prevent switch_xml_free() from clobbering ordered list + return xml; +} + +#ifdef WIN32 +/* + * globbing functions for windows, part of libc on unix, this code was cut and paste from + * freebsd lib and distilled a bit to work with windows + */ + +/* + * Copyright (c) 1989, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Guido van Rossum. + * + * 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. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 THE REGENTS OR CONTRIBUTORS 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. + */ + +#define DOLLAR '$' +#define DOT '.' +#define EOS '\0' +#define LBRACKET '[' +#define NOT '!' +#define QUESTION '?' +#define RANGE '-' +#define RBRACKET ']' +#define SEP '/' +#define WIN_SEP '\\' +#define STAR '*' +#define TILDE '~' +#define UNDERSCORE '_' +#define LBRACE '{' +#define RBRACE '}' +#define SLASH '/' +#define COMMA ',' + +#define M_QUOTE (char)0x80 +#define M_PROTECT (char)0x40 +#define M_MASK (char)0xff +#define M_ASCII (char)0x7f + +#define CHAR(c) ((char)((c)&M_ASCII)) +#define META(c) ((char)((c)|M_QUOTE)) +#define M_ALL META('*') +#define M_END META(']') +#define M_NOT META('!') +#define M_ONE META('?') +#define M_RNG META('-') +#define M_SET META('[') +#define ismeta(c) (((c)&M_QUOTE) != 0) + +#ifndef MAXPATHLEN +#define MAXPATHLEN 256 +#endif + +static int compare(const void *, const void *); +static int glob0(const char *, glob_t *, int *); +static int glob1(char *, glob_t *, int *); +static int glob2(char *, char *, char *, char *, glob_t *, int *); +static int glob3(char *, char *, char *, char *, char *, glob_t *, int *); +static int globextend(const char *, glob_t *, int *); +static int match(char *, char *, char *); + +#pragma warning(push) +#pragma warning(disable:4310) + +int glob(const char *pattern, int flags, int (*errfunc)(const char *, int), glob_t *pglob) +{ + const unsigned char *patnext; + int limit; + char c; + char *bufnext, *bufend, patbuf[MAXPATHLEN]; + + patnext = (unsigned char *) pattern; + if (!(flags & GLOB_APPEND)) { + pglob->gl_pathc = 0; + pglob->gl_pathv = NULL; + if (!(flags & GLOB_DOOFFS)) + pglob->gl_offs = 0; + } + if (flags & GLOB_LIMIT) { + limit = pglob->gl_matchc; + if (limit == 0) + limit = 9999999; + } else + limit = 0; + pglob->gl_flags = flags & ~GLOB_MAGCHAR; + pglob->gl_errfunc = errfunc; + pglob->gl_matchc = 0; + + bufnext = patbuf; + bufend = bufnext + MAXPATHLEN - 1; + while (bufnext < bufend && (c = *patnext++) != EOS) + *bufnext++ = c; + *bufnext = EOS; + + return glob0(patbuf, pglob, &limit); +} + +/* + * The main glob() routine: compiles the pattern (optionally processing + * quotes), calls glob1() to do the real pattern matching, and finally + * sorts the list (unless unsorted operation is requested). Returns 0 + * if things went well, nonzero if errors occurred. + */ +static int glob0(const char *pattern, glob_t *pglob, int *limit) +{ + const char *qpatnext; + int c, err; + unsigned int oldpathc; + char *bufnext, patbuf[MAXPATHLEN]; + + qpatnext = pattern; + oldpathc = pglob->gl_pathc; + bufnext = patbuf; + + /* We don't need to check for buffer overflow any more. */ + while ((c = *qpatnext++) != EOS) { + switch (c) { + case SEP: + *bufnext++ = WIN_SEP; + break; + case LBRACKET: + c = *qpatnext; + if (c == NOT) + ++qpatnext; + if (*qpatnext == EOS || + strchr((char *) qpatnext+1, RBRACKET) == NULL) { + *bufnext++ = LBRACKET; + if (c == NOT) + --qpatnext; + break; + } + *bufnext++ = M_SET; + if (c == NOT) + *bufnext++ = M_NOT; + c = *qpatnext++; + do { + *bufnext++ = CHAR(c); + if (*qpatnext == RANGE && + (c = qpatnext[1]) != RBRACKET) { + *bufnext++ = M_RNG; + *bufnext++ = CHAR(c); + qpatnext += 2; + } + } while ((c = *qpatnext++) != RBRACKET); + pglob->gl_flags |= GLOB_MAGCHAR; + *bufnext++ = M_END; + break; + case QUESTION: + pglob->gl_flags |= GLOB_MAGCHAR; + *bufnext++ = M_ONE; + break; + case STAR: + pglob->gl_flags |= GLOB_MAGCHAR; + /* collapse adjacent stars to one, + * to avoid exponential behavior + */ + if (bufnext == patbuf || bufnext[-1] != M_ALL) + *bufnext++ = M_ALL; + break; + default: + *bufnext++ = CHAR(c); + break; + } + } + *bufnext = EOS; + + if ((err = glob1(patbuf, pglob, limit)) != 0) + return(err); + + /* + * If there was no match we are going to append the pattern + * if GLOB_NOCHECK was specified or if GLOB_NOMAGIC was specified + * and the pattern did not contain any magic characters + * GLOB_NOMAGIC is there just for compatibility with csh. + */ + if (pglob->gl_pathc == oldpathc) { + if (((pglob->gl_flags & GLOB_NOCHECK) || + ((pglob->gl_flags & GLOB_NOMAGIC) && + !(pglob->gl_flags & GLOB_MAGCHAR)))) + return(globextend(pattern, pglob, limit)); + else + return(GLOB_NOMATCH); + } + if (!(pglob->gl_flags & GLOB_NOSORT)) + qsort(pglob->gl_pathv + pglob->gl_offs + oldpathc, + pglob->gl_pathc - oldpathc, sizeof(char *), compare); + return(0); +} + +static int compare(const void *p, const void *q) +{ + return(strcmp(*(char **)p, *(char **)q)); +} + +static int glob1(char *pattern, glob_t *pglob, int *limit) +{ + char pathbuf[MAXPATHLEN]; + + /* A null pathname is invalid -- POSIX 1003.1 sect. 2.4. */ + if (*pattern == EOS) + return(0); + return(glob2(pathbuf, pathbuf, pathbuf + MAXPATHLEN - 1, + pattern, pglob, limit)); +} + +/* + * The functions glob2 and glob3 are mutually recursive; there is one level + * of recursion for each segment in the pattern that contains one or more + * meta characters. + */ +static int glob2(char *pathbuf, char *pathend, char *pathend_last, char *pattern, glob_t *pglob, int *limit) +{ + struct stat sb; + char *p, *q; + int anymeta; + + /* + * Loop over pattern segments until end of pattern or until + * segment with meta character found. + */ + for (anymeta = 0;;) { + if (*pattern == EOS) { /* End of pattern? */ + *pathend = EOS; + if (stat(pathbuf, &sb)) + return(0); + + if (((pglob->gl_flags & GLOB_MARK) && pathend[-1] != SEP && pathend[-1] != WIN_SEP) && (_S_IFDIR & sb.st_mode) ) { + if (pathend + 1 > pathend_last) + return (GLOB_ABORTED); + *pathend++ = WIN_SEP; + *pathend = EOS; + } + ++pglob->gl_matchc; + return(globextend(pathbuf, pglob, limit)); + } + + /* Find end of next segment, copy tentatively to pathend. */ + q = pathend; + p = pattern; + while (*p != EOS && *p != SEP && *p != WIN_SEP) { + if (ismeta(*p)) + anymeta = 1; + if (q + 1 > pathend_last) + return (GLOB_ABORTED); + *q++ = *p++; + } + + if (!anymeta) { /* No expansion, do next segment. */ + pathend = q; + pattern = p; + while (*pattern == SEP || *pattern == WIN_SEP) { + if (pathend + 1 > pathend_last) + return (GLOB_ABORTED); + *pathend++ = *pattern++; + } + } else /* Need expansion, recurse. */ + return(glob3(pathbuf, pathend, pathend_last, pattern, p, + pglob, limit)); + } + /* NOTREACHED */ +} + +static int glob3(char *pathbuf, char *pathend, char *pathend_last, char *pattern, char *restpattern, glob_t *pglob, int *limit) +{ + int err; + apr_dir_t * dirp; + apr_pool_t * pool; + + apr_pool_create(&pool, NULL); + + if (pathend > pathend_last) + return (GLOB_ABORTED); + *pathend = EOS; + errno = 0; + + if(apr_dir_open (&dirp, pathbuf, pool) != APR_SUCCESS) { + /* TODO: don't call for ENOENT or ENOTDIR? */ + apr_pool_destroy(pool); + if (pglob->gl_errfunc) { + if (pglob->gl_errfunc(pathbuf, errno) || + pglob->gl_flags & GLOB_ERR) + return (GLOB_ABORTED); + } + return(0); + } + + err = 0; + + /* Search directory for matching names. */ + while (dirp) + { + apr_finfo_t dp; + unsigned char *sc; + char *dc; + + if(apr_dir_read(&dp, APR_FINFO_NAME, dirp) != APR_SUCCESS) + break; + if(!(dp.valid & APR_FINFO_NAME) || !(dp.name) || !strlen(dp.name)) + break; + + /* Initial DOT must be matched literally. */ + if (dp.name[0] == DOT && *pattern != DOT) + continue; + dc = pathend; + sc = (unsigned char *) dp.name; + + while (dc < pathend_last && (*dc++ = *sc++) != EOS); + + if (!match(pathend, pattern, restpattern)) { + *pathend = EOS; + continue; + } + err = glob2(pathbuf, --dc, pathend_last, restpattern, + pglob, limit); + if (err) + break; + } + + if(dirp) + apr_dir_close (dirp); + apr_pool_destroy(pool); + return(err); +} + + +/* + * Extend the gl_pathv member of a glob_t structure to accomodate a new item, + * add the new item, and update gl_pathc. + * + * This assumes the BSD realloc, which only copies the block when its size + * crosses a power-of-two boundary; for v7 realloc, this would cause quadratic + * behavior. + * + * Return 0 if new item added, error code if memory couldn't be allocated. + * + * Invariant of the glob_t structure: + * Either gl_pathc is zero and gl_pathv is NULL; or gl_pathc > 0 and + * gl_pathv points to (gl_offs + gl_pathc + 1) items. + */ +static int globextend(const char *path, glob_t *pglob, int *limit) +{ + char **pathv; + char * copy; + int i; + unsigned int newsize, len; + const char *p; + + if (*limit && pglob->gl_pathc > (unsigned int)(*limit)) { + errno = 0; + return (GLOB_NOSPACE); + } + + newsize = sizeof(*pathv) * (2 + pglob->gl_pathc + pglob->gl_offs); + pathv = pglob->gl_pathv ? + realloc((char *)pglob->gl_pathv, newsize) : + malloc(newsize); + if (pathv == NULL) { + if (pglob->gl_pathv) { + free(pglob->gl_pathv); + pglob->gl_pathv = NULL; + } + return(GLOB_NOSPACE); + } + + if (pglob->gl_pathv == NULL && pglob->gl_offs > 0) { + /* first time around -- clear initial gl_offs items */ + pathv += pglob->gl_offs; + for (i = pglob->gl_offs; --i >= 0; ) + *--pathv = NULL; + } + pglob->gl_pathv = pathv; + + for (p = path; *p++;) + continue; + len = (size_t)(p - path); + if ((copy = malloc(len)) != NULL) { + memcpy(copy, path, len); + pathv[pglob->gl_offs + pglob->gl_pathc++] = copy; + } + pathv[pglob->gl_offs + pglob->gl_pathc] = NULL; + return(copy == NULL ? GLOB_NOSPACE : 0); +} + +/* + * pattern matching function for filenames. Each occurrence of the * + * pattern causes a recursion level. + */ +static int match(char *name, char *pat, char *patend) +{ + int ok, negate_range; + char c, k; + char s1[6]; + + while (pat < patend) { + c = *pat++; + switch (c & M_MASK) { + case M_ALL: + if (pat == patend) + return(1); + do + if (match(name, pat, patend)) + return(1); + while (*name++ != EOS); + return(0); + case M_ONE: + if (*name++ == EOS) + return(0); + break; + case M_SET: + ok = 0; + if ((k = *name++) == EOS) + return(0); + if ((negate_range = ((*pat & M_MASK) == M_NOT)) != EOS) + ++pat; + while (((c = *pat++) & M_MASK) != M_END) + if ((*pat & M_MASK) == M_RNG) { + memset(s1, 0, sizeof(s1)); + s1[0] = c; + s1[2] = k; + s1[4] = pat[1]; + if (strcoll(&s1[0], &s1[2]) <= 0 && strcoll(&s1[2], &s1[4]) <= 0) + ok = 1; + pat += 2; + } else if (c == k) + ok = 1; + if (ok == negate_range) + return(0); + break; + default: + if (*name++ != c) + return(0); + break; + } + } + return(*name == EOS); +} + +/* Free allocated data belonging to a glob_t structure. */ +void globfree(glob_t *pglob) +{ + int i; + char **pp; + + if (pglob->gl_pathv != NULL) { + pp = pglob->gl_pathv + pglob->gl_offs; + for (i = pglob->gl_pathc; i--; ++pp) + if (*pp) + free(*pp); + free(pglob->gl_pathv); + pglob->gl_pathv = NULL; + } +} +#pragma warning(pop) +#endif + +/* For Emacs: + * Local Variables: + * mode:c + * indent-tabs-mode:t + * tab-width:4 + * c-basic-offset:4 + * End: + * For VIM: + * vim:set softtabstop=4 shiftwidth=4 tabstop=4: + */ Modified: freeswitch/trunk/w32/Library/FreeSwitchCore.2008.vcproj ============================================================================== --- freeswitch/trunk/w32/Library/FreeSwitchCore.2008.vcproj (original) +++ freeswitch/trunk/w32/Library/FreeSwitchCore.2008.vcproj Tue Jul 8 17:52:38 2008 @@ -481,7 +481,7 @@ > </File> <File - RelativePath="..\..\src\switch_xml.cpp" + RelativePath="..\..\src\switch_xml.c" > <FileConfiguration Name="Debug|Win32" Modified: freeswitch/trunk/w32/Library/FreeSwitchCore.vcproj ============================================================================== --- freeswitch/trunk/w32/Library/FreeSwitchCore.vcproj (original) +++ freeswitch/trunk/w32/Library/FreeSwitchCore.vcproj Tue Jul 8 17:52:38 2008 @@ -479,7 +479,7 @@ > </File> <File - RelativePath="..\..\src\switch_xml.cpp" + RelativePath="..\..\src\switch_xml.c" > <FileConfiguration Name="Debug|Win32"