/*
* kakumei_config.c
*
* Config management for the kakumei server.
*
* Author: Dario Rodriguez dario@softhome.net
* This program is licensed under the terms of the Affero GPL v1.0+ license.
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include "loglib.h"
#include "kakumei_config.h"
#define MAXLINESIZE 2048
#define LINESBLOCK 32
typedef enum esection {
section_none=0,
section_general,
section_mail
} esection;
kaconfig *
kaconfig_init(char *configfile)
{
kaconfig *config;
FILE *f;
char line[MAXLINESIZE];
int len;
char *ptr,*sep,*value;
esection section;
int lineno;
char **configvalue;
if((f=fopen(configfile,"r"))==NULL)
return(NULL);
if((config=malloc(sizeof(kaconfig)))==NULL) {
fclose(f),f=NULL;
return(NULL);
}
memset(config,0,sizeof(kaconfig));
section=section_none;
lineno=0;
while(fgets(line,sizeof(line),f)!=NULL) {
lineno++;
line[sizeof(line)-1]='\0';
/* trim line */
for(ptr=line;*ptr!='\0' && strchr("\t ",*ptr)!=NULL;ptr++)
;
len=strlen(line);
if(!(section==section_mail && memcmp(ptr,"line.",5)==0)) {
while(len>0 && strchr("\n\t ",line[len-1])!=NULL)
line[len-1]='\0',len--;
} else {
while(len>0 && line[len-1]=='\n')
line[len-1]='\0',len--;
}
for(ptr=line;*ptr!='\0' && strchr("\t ",*ptr)!=NULL;ptr++)
;
len=strlen(ptr);
/* ignore empty lines and comments */
if(*ptr=='\0' || strchr("#;",*ptr)!=NULL)
continue;
/* parse line */
if(*ptr=='[' && ptr[len-1]==']') {
/* section */
if(strcmp(ptr,"[general]")==0) {
section=section_general;
} else if(strcmp(ptr,"[mail]")==0) {
section=section_mail;
} else {
log_write("CONF","%s:%i: unknown section name \"%s\"\n",configfile,lineno,ptr);
section=section_none;
}
continue;
} else if((sep=strchr(ptr,'='))!=NULL) {
*sep='\0';
value=sep+1;
/* trim key */
while(sep>ptr && strchr(" \t",sep[-1])!=NULL) {
sep--;
*sep='\0';
}
if(!(section==section_mail && memcmp(ptr,"line.",5)==0)) {
/* trim value */
while(*value!='\0' && strchr(" \t",*value)!=NULL)
value++;
}
/* sanity check */
if(*value=='\0') {
if(!(section==section_mail && memcmp(ptr,"line.",5)==0))
log_write("CONF","%s:%i: ignoring key without value; key:\"%s\"\n",configfile,lineno,ptr);
continue;
}
/* assign value */
if(section==section_none) {
log_write("CONF","%s:%i: ignoring key-value pair in unknown section; key:\"%s\"\n",configfile,lineno,ptr);
continue;
}
/* identify key-value pair */
if(section==section_general) {
if(strcmp(ptr,"logfile")==0) {
configvalue=&(config->logfile);
} else if(strcmp(ptr,"cookiename")==0) {
configvalue=&(config->cookiename);
} else if(strcmp(ptr,"cookiedomain")==0) {
configvalue=&(config->cookiedomain);
} else if(strcmp(ptr,"bannerpath")==0) {
configvalue=&(config->bannerpath);
} else if(strcmp(ptr,"sslproxy")==0) {
if(strcmp(value,"true")==0 || strcmp(value,"1")==0 || strcmp(value,"yes")==0)
config->sslproxy=1;
else
config->sslproxy=0;
continue;
} else {
log_write("CONF","%s:%i: unknown key, ignoring key-value pair; key:\"%s\"\n",configfile,lineno,ptr);
continue;
}
} else if(section==section_mail) {
if(strcmp(ptr,"from")==0) {
configvalue=&(config->from);
} else if(strcmp(ptr,"subjpost")==0) {
configvalue=&(config->subjpost);
} else if(strcmp(ptr,"subjcomment")==0) {
configvalue=&(config->subjcomment);
} else if(memcmp(ptr,"line.",5)==0) {
int lineno=atoi(ptr+5);
if(lineno<0)
lineno=0;
if(lineno>=config->sizelines) {
char **lines;
int minsize;
minsize=(lineno+LINESBLOCK)/LINESBLOCK;
minsize*=LINESBLOCK;
if((lines=realloc(config->lines,minsize*sizeof(char *)))==NULL) {
fclose(f),f=NULL;
kaconfig_free(config),config=NULL;
return(NULL); /* insufficient memory */
}
config->lines=lines;
memset(lines+config->sizelines,0,sizeof(char *)*(minsize-config->sizelines));
config->sizelines=minsize;
}
configvalue=config->lines+lineno;
if(config->usedlines<=lineno)
config->usedlines=lineno+1;
} else {
log_write("CONF","%s:%i: unknown key, ignoring key-value pair; key:\"%s\"\n",configfile,lineno,ptr);
continue;
}
} else
continue;
/* store value */
if(*configvalue!=NULL) {
log_write("CONF","%s:%i: duplicate key, ignoring key-value pair; key:\"%s\"\n",configfile,lineno,ptr);
continue;
}
if((*configvalue=strdup(value))==NULL) {
fclose(f),f=NULL;
kaconfig_free(config),config=NULL;
return(NULL); /* insufficient memory */
}
continue;
} else {
log_write("CONF","%s:%i: malformed line, ignoring; contents:\"%s\"\n",configfile,lineno,ptr);
continue;
}
}
fclose(f),f=NULL;
return(config);
}
void
kaconfig_free(kaconfig *config)
{
if(config==NULL)
return;
if(config->logfile!=NULL)
free(config->logfile),config->logfile=NULL;
if(config->cookiename!=NULL)
free(config->cookiename),config->cookiename=NULL;
if(config->cookiedomain!=NULL)
free(config->cookiedomain),config->cookiedomain=NULL;
if(config->bannerpath!=NULL)
free(config->bannerpath),config->bannerpath=NULL;
if(config->from!=NULL)
free(config->from),config->from=NULL;
if(config->subjpost!=NULL)
free(config->subjpost),config->subjpost=NULL;
if(config->subjcomment!=NULL)
free(config->subjcomment),config->subjcomment=NULL;
if(config->lines!=NULL) {
int i;
for(i=0;i<config->usedlines;i++) {
if(config->lines[i]!=NULL)
free(config->lines[i]),config->lines[i]=NULL;
}
config->sizelines=0;
config->usedlines=0;
free(config->lines),config->lines=NULL;
}
free(config),config=NULL;
return;
}
int
kaconfig_exists(char *configfile)
{
struct stat st;
if(stat(configfile,&st)!=0)
return(-1);
return(0);
}
int
kaconfig_write(char *configfile,char *logfile, char *cookiename,char *cookiedomain, char *bannerpath, int sslproxy)
{
FILE *f;
if((f=fopen(configfile,"w"))==NULL)
return(-1);
fprintf(f,"; kakumei config file\n");
fprintf(f,"[general]\n");
fprintf(f,"logfile=%s\n",(logfile!=NULL)?logfile:"kakumei.log");
fprintf(f,"cookiename=%s\n",(cookiename!=NULL)?cookiename:"kakumeiauthid");
fprintf(f,"cookiedomain=%s\n",(cookiedomain!=NULL)?cookiedomain:"localhost");
fprintf(f,"bannerpath=%s\n",(bannerpath!=NULL)?bannerpath:"default.png");
fprintf(f,"sslproxy=%s\n",(sslproxy==0)?"no":"yes");
fprintf(f,"\n[mail]\nfrom=\nsubjpost=New post\nsubjcomment=New comment in post\nline.0=There is a new post or comment\nline.1=Best regards, kakumei web\n");
return(0);
}