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#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include <unistd.h>
#include "playtree.h"
#include "playtreeparser.h"
#include "libmpdemux/stream.h"
#include "libmpdemux/demuxer.h"
#include "asxparser.h"
#include "mp_msg.h"
#include "m_config.h"
extern m_config_t* mconfig;
////// List utils
void
asx_list_add(void* list_ptr,void* entry){
void** list = *(void***)list_ptr;
int c = 0;
if(list != NULL)
for( ; list[c] != NULL; c++) ;
list = (void*)realloc(list,sizeof(void*)*(c+2));
list[c] = entry;
list[c+1] = NULL;
*(void***)list_ptr = list;
}
void
asx_list_remove(void* list_ptr,void* entry,ASX_FreeFunc free_func) {
void** list = *(void***)list_ptr;
int c,e = -1;
if(list == NULL) return;
for(c = 0 ; list[c] != NULL; c++){
if(list[c] == entry) e = c;
}
if(e == -1) return; // Not found
if(free_func != NULL) free_func(list[e]);
if(c == 1) { // Only one entry, we drop all
free(list);
*(void**)list_ptr = NULL;
return;
}
if(c > e) // If c==e the memmove is not needed
memmove(list+e,list+e+1,(c-e)*sizeof(void*));
list = (void*)realloc(list,(c-1)*sizeof(void*));
list[c-1] = NULL;
*(void***)list_ptr = list;
}
void
asx_list_free(void* list_ptr,ASX_FreeFunc free_func) {
void** ptr = *(void***)list_ptr;
if(ptr == NULL) return;
if(free_func != NULL) {
for( ; *ptr != NULL ; ptr++)
free_func(*ptr);
}
free(*(void**)list_ptr);
*(void**)list_ptr = NULL;
}
/////// Attribs utils
char*
asx_get_attrib(char* attrib,char** attribs) {
char** ptr;
if(attrib == NULL || attribs == NULL) return NULL;
for(ptr = attribs; ptr[0] != NULL; ptr += 2){
if(strcasecmp(ptr[0],attrib) == 0)
return strdup(ptr[1]);
}
return NULL;
}
int
asx_attrib_to_enum(char* val,char** valid_vals) {
char** ptr;
int r = 0;
if(valid_vals == NULL || val == NULL) return -2;
for(ptr = valid_vals ; ptr[0] != NULL ; ptr++) {
if(strcasecmp(val,ptr[0]) == 0) return r;
r++;
}
return -1;
}
static void
asx_warning_attrib_invalid(ASX_Parser_t* parser, char* elem, char* attrib,
char** valid_vals,char* val) {
char *str,*vals,**ptr;
int len;
if(valid_vals == NULL || valid_vals[0] == NULL) return;
len = strlen(valid_vals[0]) + 1;
for(ptr = valid_vals+1 ; ptr[0] != NULL; ptr++) {
len += strlen(ptr[0]);
len += ((ptr[1] == NULL) ? 4 : 2);
}
str = vals = (char*)malloc(len);
vals += sprintf(vals,"%s",valid_vals[0]);
for(ptr = valid_vals + 1 ; ptr[0] != NULL ; ptr++) {
if(ptr[1] == NULL)
vals += sprintf(vals," or %s",ptr[0]);
else
vals += sprintf(vals,", %s",ptr[0]);
}
mp_msg(MSGT_PLAYTREE,MSGL_ERR,"at line %d : attribute %s of element %s is invalid (%s). Valid values are %s",
parser->line,attrib,elem,val,str);
free(str);
}
static int
asx_get_yes_no_attrib(ASX_Parser_t* parser, char* element, char* attrib,char** attribs,int def) {
char* val = asx_get_attrib(attrib,attribs);
char* valids[] = { "NO", "YES", NULL };
int r;
if(val == NULL) return def;
r = asx_attrib_to_enum(val,valids);
if(r < 0) {
asx_warning_attrib_invalid(parser,element,attrib,valids,val);
r = def;
}
free(val);
return r;
}
#define asx_warning_attrib_required(p,e,a) mp_msg(MSGT_PLAYTREE,MSGL_WARN,"At line %d : element %s don't have the required attribute %s",p->line,e,a)
#define asx_warning_body_parse_error(p,e) mp_msg(MSGT_PLAYTREE,MSGL_WARN,"At line %d : error while parsing %s body",p->line,e)
ASX_Parser_t*
asx_parser_new(void) {
ASX_Parser_t* parser = calloc(1,sizeof(ASX_Parser_t));
return parser;
}
void
asx_parser_free(ASX_Parser_t* parser) {
if(!parser) return;
if(parser->ret_stack) free(parser->ret_stack);
free(parser);
}
#define LETTER "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
#define SPACE " \n\t\r"
int
asx_parse_attribs(ASX_Parser_t* parser,char* buffer,char*** _attribs) {
char *ptr1, *ptr2, *ptr3;
int n_attrib = 0;
char **attribs = NULL;
char *attrib, *val;
ptr1 = buffer;
while(1) {
for( ; strchr(SPACE,*ptr1) != NULL; ptr1++) { // Skip space
if(*ptr1 == '\0') break;
}
ptr3 = strchr(ptr1,'=');
if(ptr3 == NULL) break;
for(ptr2 = ptr3-1; strchr(SPACE,*ptr2) != NULL; ptr2--) {
if (ptr2 == ptr1) {
mp_msg(MSGT_PLAYTREE,MSGL_ERR,"At line %d : this should never append, back to attribute begin while skipping end space",parser->line);
break;
}
}
attrib = (char*)malloc(ptr2-ptr1+2);
strncpy(attrib,ptr1,ptr2-ptr1+1);
attrib[ptr2-ptr1+1] = '\0';
ptr1 = strchr(ptr3,'"');
if(ptr1 == NULL || ptr1[1] == '\0') ptr1 = strchr(ptr3,'\'');
if(ptr1 == NULL || ptr1[1] == '\0') {
mp_msg(MSGT_PLAYTREE,MSGL_WARN,"At line %d : can't find attribute %s value",parser->line,attrib);
free(attrib);
break;
}
ptr2 = strchr(ptr1+1,ptr1[0]);
if (ptr2 == NULL) {
mp_msg(MSGT_PLAYTREE,MSGL_WARN,"At line %d : value of attribute %s isn't finished",parser->line,attrib);
free(attrib);
break;
}
ptr1++;
val = (char*)malloc(ptr2-ptr1+1);
strncpy(val,ptr1,ptr2-ptr1);
val[ptr2-ptr1] = '\0';
n_attrib++;
attribs = (char**)realloc(attribs,(2*n_attrib+1)*sizeof(char*));
attribs[n_attrib*2-2] = attrib;
attribs[n_attrib*2-1] = val;
ptr1 = ptr2+1;
}
if(n_attrib > 0)
attribs[n_attrib*2] = NULL;
*_attribs = attribs;
return n_attrib;
}
/*
* Return -1 on error, 0 when nothing is found, 1 on sucess
*/
int
asx_get_element(ASX_Parser_t* parser,char** _buffer,
char** _element,char** _body,char*** _attribs) {
char *ptr1,*ptr2, *ptr3, *ptr4;
char *attribs = NULL;
char *element = NULL, *body = NULL, *ret = NULL, *buffer;
int n_attrib = 0;
int body_line = 0,attrib_line,ret_line,in = 0;
int quotes = 0;
if(_buffer == NULL || _element == NULL || _body == NULL || _attribs == NULL) {
mp_msg(MSGT_PLAYTREE,MSGL_ERR,"At line %d : asx_get_element called with invalid value",parser->line);
return -1;
}
*_body = *_element = NULL;
*_attribs = NULL;
buffer = *_buffer;
if(buffer == NULL) return 0;
if(parser->ret_stack && /*parser->last_body && */buffer != parser->last_body) {
ASX_LineSave_t* ls = parser->ret_stack;
int i;
for(i = 0 ; i < parser->ret_stack_size ; i++) {
if(buffer == ls[i].buffer) {
parser->line = ls[i].line;
break;
}
}
if( i < parser->ret_stack_size) {
i++;
if( i < parser->ret_stack_size)
memmove(parser->ret_stack,parser->ret_stack+i, (parser->ret_stack_size - i)*sizeof(ASX_LineSave_t));
parser->ret_stack_size -= i;
if(parser->ret_stack_size > 0)
parser->ret_stack = (ASX_LineSave_t*)realloc(parser->ret_stack,parser->ret_stack_size*sizeof(ASX_LineSave_t));
else {
free(parser->ret_stack);
parser->ret_stack = NULL;
}
}
}
ptr1 = buffer;
while(1) {
for( ; ptr1[0] != '<' ; ptr1++) {
if(ptr1[0] == '\0') {
ptr1 = NULL;
break;
}
if(ptr1[0] == '\n') parser->line++;
}
//ptr1 = strchr(ptr1,'<');
if(!ptr1 || ptr1[1] == '\0') return 0; // Nothing found
if(strncmp(ptr1,"<!--",4) == 0) { // Comments
for( ; strncmp(ptr1,"-->",3) != 0 ; ptr1++) {
if(ptr1[0] == '\0') {
ptr1 = NULL;
break;
}
if(ptr1[0] == '\n') parser->line++;
}
//ptr1 = strstr(ptr1,"-->");
if(!ptr1) {
mp_msg(MSGT_PLAYTREE,MSGL_ERR,"At line %d : unfinished comment",parser->line);
return -1;
}
} else {
break;
}
}
// Is this space skip very useful ??
for(ptr1++; strchr(SPACE,ptr1[0]) != NULL; ptr1++) { // Skip space
if(ptr1[0] == '\0') {
mp_msg(MSGT_PLAYTREE,MSGL_ERR,"At line %d : EOB reached while parsing element start",parser->line);
return -1;
}
if(ptr1[0] == '\n') parser->line++;
}
for(ptr2 = ptr1; strchr(LETTER,*ptr2) != NULL;ptr2++) { // Go to end of name
if(*ptr2 == '\0'){
mp_msg(MSGT_PLAYTREE,MSGL_ERR,"At line %d : EOB reached while parsing element start",parser->line);
return -1;
}
if(ptr2[0] == '\n') parser->line++;
}
element = (char*)malloc(ptr2-ptr1+1);
strncpy(element,ptr1,ptr2-ptr1);
element[ptr2-ptr1] = '\0';
for( ; strchr(SPACE,*ptr2) != NULL; ptr2++) { // Skip space
if(ptr2[0] == '\0') {
mp_msg(MSGT_PLAYTREE,MSGL_ERR,"At line %d : EOB reached while parsing element start",parser->line);
free(element);
return -1;
}
if(ptr2[0] == '\n') parser->line++;
}
attrib_line = parser->line;
for(ptr3 = ptr2; ptr3[0] != '\0'; ptr3++) { // Go to element end
if(ptr3[0] == '"') quotes ^= 1;
if(!quotes && (ptr3[0] == '>' || strncmp(ptr3,"/>",2) == 0))
break;
if(ptr3[0] == '\n') parser->line++;
}
if(ptr3[0] == '\0' || ptr3[1] == '\0') { // End of file
mp_msg(MSGT_PLAYTREE,MSGL_ERR,"At line %d : EOB reached while parsing element start",parser->line);
free(element);
return -1;
}
// Save attribs string
if(ptr3-ptr2 > 0) {
attribs = (char*)malloc(ptr3-ptr2+1);
strncpy(attribs,ptr2,ptr3-ptr2);
attribs[ptr3-ptr2] = '\0';
}
//bs_line = parser->line;
if(ptr3[0] != '/') { // Not Self closed element
ptr3++;
for( ; strchr(SPACE,*ptr3) != NULL; ptr3++) { // Skip space on body begin
if(*ptr3 == '\0') {
mp_msg(MSGT_PLAYTREE,MSGL_ERR,"At line %d : EOB reached while parsing %s element body",parser->line,element);
free(element);
if(attribs) free(attribs);
return -1;
}
if(ptr3[0] == '\n') parser->line++;
}
ptr4 = ptr3;
body_line = parser->line;
while(1) { // Find closing element
for( ; ptr4[0] != '<' ; ptr4++) {
if(ptr4[0] == '\0') {
ptr4 = NULL;
break;
}
if(ptr4[0] == '\n') parser->line++;
}
if(ptr4 && strncmp(ptr4,"<!--",4) == 0) { // Comments
for( ; strncmp(ptr4,"-->",3) != 0 ; ptr4++) {
if(ptr4[0] == '\0') {
ptr4 = NULL;
break;
}
if(ptr1[0] == '\n') parser->line++;
}
continue;
}
if(ptr4 == NULL || ptr4[1] == '\0') {
mp_msg(MSGT_PLAYTREE,MSGL_ERR,"At line %d : EOB reached while parsing %s element body",parser->line,element);
free(element);
if(attribs) free(attribs);
return -1;
}
if(ptr4[1] != '/' && strncasecmp(element,ptr4+1,strlen(element)) == 0) {
in++;
ptr4+=2;
continue;
} else if(strncasecmp(element,ptr4+2,strlen(element)) == 0) { // Extract body
if(in > 0) {
in--;
ptr4 += 2+strlen(element);
continue;
}
ret = ptr4+strlen(element)+3;
if(ptr4 != ptr3) {
ptr4--;
for( ; ptr4 != ptr3 && strchr(SPACE,*ptr4) != NULL; ptr4--) ;// Skip space on body end
// if(ptr4[0] == '\0') parser->line--;
//}
ptr4++;
body = (char*)malloc(ptr4-ptr3+1);
strncpy(body,ptr3,ptr4-ptr3);
body[ptr4-ptr3] = '\0';
}
break;
} else {
ptr4 += 2;
}
}
} else {
ret = ptr3 + 2; // 2 is for />
}
for( ; ret[0] != '\0' && strchr(SPACE,ret[0]) != NULL; ret++) { // Skip space
if(ret[0] == '\n') parser->line++;
}
ret_line = parser->line;
if(attribs) {
parser->line = attrib_line;
n_attrib = asx_parse_attribs(parser,attribs,_attribs);
free(attribs);
if(n_attrib < 0) {
mp_msg(MSGT_PLAYTREE,MSGL_WARN,"At line %d : error while parsing element %s attributes",parser->line,element);
free(element);
free(body);
return -1;
}
} else
*_attribs = NULL;
*_element = element;
*_body = body;
parser->last_body = body;
parser->ret_stack_size++;
parser->ret_stack = (ASX_LineSave_t*)realloc(parser->ret_stack,parser->ret_stack_size*sizeof(ASX_LineSave_t));
if(parser->ret_stack_size > 1)
memmove(parser->ret_stack+1,parser->ret_stack,(parser->ret_stack_size-1)*sizeof(ASX_LineSave_t));
parser->ret_stack[0].buffer = ret;
parser->ret_stack[0].line = ret_line;
parser->line = body ? body_line : ret_line;
*_buffer = ret;
return 1;
}
static void
asx_parse_param(ASX_Parser_t* parser, char** attribs, play_tree_t* pt) {
char *name,*val;
name = asx_get_attrib("NAME",attribs);
if(!name) {
asx_warning_attrib_required(parser,"PARAM" ,"NAME" );
return;
}
val = asx_get_attrib("VALUE",attribs);
if(m_config_get_option(mconfig,name) == NULL) {
mp_msg(MSGT_PLAYTREE,MSGL_WARN,"Found unknown param in asx: %s",name);
if(val)
mp_msg(MSGT_PLAYTREE,MSGL_WARN,"=%s\n",val);
else
mp_msg(MSGT_PLAYTREE,MSGL_WARN,"\n");
return;
}
play_tree_set_param(pt,name,val);
free(name);
if(val) free(val);
}
static void
asx_parse_ref(ASX_Parser_t* parser, char** attribs, play_tree_t* pt) {
char *href;
href = asx_get_attrib("HREF",attribs);
if(href == NULL) {
asx_warning_attrib_required(parser,"REF" ,"HREF" );
return;
}
play_tree_add_file(pt,href);
mp_msg(MSGT_PLAYTREE,MSGL_V,"Adding file %s to element entry\n",href);
free(href);
}
static play_tree_t*
asx_parse_entryref(ASX_Parser_t* parser,char* buffer,char** _attribs) {
play_tree_t* pt;
char *href;
stream_t* stream;
play_tree_parser_t* ptp;
int f=DEMUXER_TYPE_UNKNOWN;
if(parser->deep > 0)
return NULL;
href = asx_get_attrib("HREF",_attribs);
if(href == NULL) {
asx_warning_attrib_required(parser,"ENTRYREF" ,"HREF" );
return NULL;
}
stream=open_stream(href,0,&f);
if(!stream) {
mp_msg(MSGT_PLAYTREE,MSGL_WARN,"Can't open playlist %s\n",href);
free(href);
return NULL;
}
mp_msg(MSGT_PLAYTREE,MSGL_V,"Adding playlist %s to element entryref\n",href);
ptp = play_tree_parser_new(stream,parser->deep+1);
pt = play_tree_parser_get_play_tree(ptp, 1);
play_tree_parser_free(ptp);
free_stream(stream);
free(href);
//mp_msg(MSGT_PLAYTREE,MSGL_INFO,"Need to implement entryref\n");
return pt;
}
static play_tree_t*
asx_parse_entry(ASX_Parser_t* parser,char* buffer,char** _attribs) {
char *element,*body,**attribs;
int r,nref=0;
play_tree_t *ref;
ref = play_tree_new();
while(buffer && buffer[0] != '\0') {
r = asx_get_element(parser,&buffer,&element,&body,&attribs);
if(r < 0) {
asx_warning_body_parse_error(parser,"ENTRY");
return NULL;
} else if (r == 0) { // No more element
break;
}
if(strcasecmp(element,"REF") == 0) {
asx_parse_ref(parser,attribs,ref);
mp_msg(MSGT_PLAYTREE,MSGL_DBG2,"Adding element %s to entry\n",element);
nref++;
} else
mp_msg(MSGT_PLAYTREE,MSGL_DBG2,"Ignoring element %s\n",element);
if(body) free(body);
asx_free_attribs(attribs);
}
if(nref <= 0) {
play_tree_free(ref,1);
return NULL;
}
return ref;
}
static play_tree_t*
asx_parse_repeat(ASX_Parser_t* parser,char* buffer,char** _attribs) {
char *element,*body,**attribs;
play_tree_t *repeat, *list=NULL, *entry;
char* count;
int r;
repeat = play_tree_new();
count = asx_get_attrib("COUNT",_attribs);
if(count == NULL) {
mp_msg(MSGT_PLAYTREE,MSGL_DBG2,"Setting element repeat loop to infinit\n");
repeat->loop = -1; // Infinit
} else {
repeat->loop = atoi(count);
free(count);
if(repeat->loop == 0) repeat->loop = 1;
mp_msg(MSGT_PLAYTREE,MSGL_DBG2,"Setting element repeat loop to %d\n",repeat->loop);
}
while(buffer && buffer[0] != '\0') {
r = asx_get_element(parser,&buffer,&element,&body,&attribs);
if(r < 0) {
asx_warning_body_parse_error(parser,"REPEAT");
return NULL;
} else if (r == 0) { // No more element
break;
}
if(strcasecmp(element,"ENTRY") == 0) {
entry = asx_parse_entry(parser,body,attribs);
if(entry) {
if(!list) list = entry;
else play_tree_append_entry(list,entry);
mp_msg(MSGT_PLAYTREE,MSGL_DBG2,"Adding element %s to repeat\n",element);
}
} else if(strcasecmp(element,"ENTRYREF") == 0) {
entry = asx_parse_entryref(parser,body,attribs);
if(entry) {
if(!list) list = entry;
else play_tree_append_entry(list,entry);
mp_msg(MSGT_PLAYTREE,MSGL_DBG2,"Adding element %s to repeat\n",element);
}
} else if(strcasecmp(element,"REPEAT") == 0) {
entry = asx_parse_repeat(parser,body,attribs);
if(entry) {
if(!list) list = entry;
else play_tree_append_entry(list,entry);
mp_msg(MSGT_PLAYTREE,MSGL_DBG2,"Adding element %s to repeat\n",element);
}
} else if(strcasecmp(element,"PARAM") == 0) {
asx_parse_param(parser,attribs,repeat);
} else
mp_msg(MSGT_PLAYTREE,MSGL_DBG2,"Ignoring element %s\n",element);
if(body) free(body);
asx_free_attribs(attribs);
}
if(!list) {
play_tree_free(repeat,1);
return NULL;
}
play_tree_set_child(repeat,list);
return repeat;
}
play_tree_t*
asx_parser_build_tree(char* buffer,int deep) {
char *element,*asx_body,**asx_attribs,*body, **attribs;
int r;
play_tree_t *asx,*entry,*list = NULL;
ASX_Parser_t* parser = asx_parser_new();
parser->line = 1;
parser->deep = deep;
r = asx_get_element(parser,&buffer,&element,&asx_body,&asx_attribs);
if(r < 0) {
mp_msg(MSGT_PLAYTREE,MSGL_ERR,"At line %d : Syntax error ???",parser->line);
asx_parser_free(parser);
return NULL;
} else if(r == 0) { // No contents
mp_msg(MSGT_PLAYTREE,MSGL_ERR,"empty asx element");
asx_parser_free(parser);
return NULL;
}
if(strcasecmp(element,"ASX") != 0) {
mp_msg(MSGT_PLAYTREE,MSGL_ERR,"first element isn't ASX, it's %s\n",element);
asx_free_attribs(asx_attribs);
if(body) free(body);
asx_parser_free(parser);
return NULL;
}
if(!asx_body) {
mp_msg(MSGT_PLAYTREE,MSGL_ERR,"ASX element is empty");
asx_free_attribs(asx_attribs);
asx_parser_free(parser);
return NULL;
}
asx = play_tree_new();
buffer = asx_body;
while(buffer && buffer[0] != '\0') {
r = asx_get_element(parser,&buffer,&element,&body,&attribs);
if(r < 0) {
asx_warning_body_parse_error(parser,"ASX");
asx_parser_free(parser);
return NULL;
} else if (r == 0) { // No more element
break;
}
if(strcasecmp(element,"ENTRY") == 0) {
entry = asx_parse_entry(parser,body,attribs);
if(entry) {
if(!list) list = entry;
else play_tree_append_entry(list,entry);
mp_msg(MSGT_PLAYTREE,MSGL_DBG2,"Adding element %s to asx\n",element);
}
} else if(strcasecmp(element,"ENTRYREF") == 0) {
entry = asx_parse_entryref(parser,body,attribs);
if(entry) {
if(!list) list = entry;
else play_tree_append_entry(list,entry);
mp_msg(MSGT_PLAYTREE,MSGL_DBG2,"Adding element %s to asx\n",element);
}
} else if(strcasecmp(element,"REPEAT") == 0) {
entry = asx_parse_repeat(parser,body,attribs);
if(entry) {
if(!list) list = entry;
else play_tree_append_entry(list,entry);
mp_msg(MSGT_PLAYTREE,MSGL_DBG2,"Adding element %s to asx\n",element);
}
} else
mp_msg(MSGT_PLAYTREE,MSGL_DBG2,"Ignoring element %s\n",element);
if(body) free(body);
asx_free_attribs(attribs);
}
free(asx_body);
asx_free_attribs(asx_attribs);
asx_parser_free(parser);
if(!list) {
play_tree_free(asx,1);
return NULL;
}
play_tree_set_child(asx,list);
return asx;
}
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