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/* 使用方法: 自己先用 r->method_number 判斷是 M_GET 或 M_POST
*/
#include "mod_ptt.h"
unsigned char xtoc(char ch1, char ch2) {
unsigned char d, up1, up2;
if (!isxdigit(ch1) || !isxdigit(ch2)) return ' ';
up1 = toupper(ch1);
up2 = toupper(ch2);
if (up1>='0' && up1<='9') d = up1-'0';
else d = up1-'A'+10;
d <<= 4;
if (up2>='0' && up2<='9') d += up2-'0';
else d += up2-'A'+10;
return d;
}
char * cstoxs(pool *p, char *str)
{
char * newstr = pstrdup(p,""), *po = str;
for(po = str; *po; po++)
{
if(isprint(*po) && *po!=' ') newstr=psprintf(p, "%s%c", newstr,*po);
else newstr=psprintf(p, "%s%%%X", newstr, *po& 0xFF);
}
return newstr;
}
int // Ptt: 我重寫拿掉mygetchar 並加上fileupload的功能
inital_postdata(request_rec *r, int *fileupload, char *boundary,
char **data)
{
char *buf, *mb;
int size, off = 0, len_read;
void (*handler)();
buf = table_get(r->subprocess_env,"CONTENT_TYPE");
if(!buf ||
(strncasecmp(buf,"application/x-www-form-urlencoded",33) &&
strncasecmp(buf,"multipart/form-data",19)))
return -1;
if(!strncasecmp(buf,"multipart/form-data",19)) {
if(!fileupload) return -1;
*fileupload=1;
mb = strchr(buf,'=');
if(mb) {
strcpy(boundary,mb+1);
strtok(boundary, " ;\n");
}
else return -1;
}
buf = table_get(r->subprocess_env,"CONTENT_LENGTH");
if(buf==NULL) return -1;
size = atoi(buf);
mb = (char *)palloc(r->pool,(size+1)*sizeof(char));
if(!mb ||
(setup_client_block(r ,REQUEST_CHUNKED_ERROR) != 0) ||
(should_client_block(r) == 0))
return -1;
hard_timeout("args.c copy script args", r);
handler = signal(SIGPIPE, SIG_IGN);
while(size-off > 0 && (len_read = get_client_block
(r, mb + off, size - off)) > 0) {
off += len_read;
}
signal(SIGPIPE, handler);
kill_timeout(r);
if(len_read < 0) return -1; // 讀的中途有中斷
mb[size]=0; // Ptt:截掉不需要吧 因為不是用字串處理方式
(*data) = mb;
return size;
}
#define ENCODED_NAME " name=\""
#define ENCODED_FILENAME " filename=\""
#define ENCODED_CONTENT "Content-Type: "
//#define FILEDATAFILE DATABASEDIR "/" FDATA
int
unescape(request_rec *r, char** name, char** value) {
static char *sp=NULL, boundary[150];
static int fileupload, boundarylen, dsize;
pool *p = r->pool;
char ch, ch1, *dp, *p0, *p1, *temp_sp, *ftype;
int type;
if (sp==NULL) {
fileupload=0;
switch (r->method_number) {
case M_GET:
if (r->args) sp = pstrdup(p, r->args);
else {sp=NULL; return -1;}
break;
case M_POST:
if ((dsize =
inital_postdata(r, &fileupload, boundary,&sp))<0)
{sp=NULL; return -1; }
if(fileupload) boundarylen = strlen(boundary);
break;
default:
sp=NULL;
return -1;
}
}
if(fileupload)
{
if(dsize >0 && (temp_sp = memstr(sp, boundary, dsize)))
{
temp_sp += boundarylen;
p0 = strstr(temp_sp, "\r\n\r\n");
p1 = strstr(temp_sp, "\n\n");
if(!((*name) = strstr(temp_sp, ENCODED_NAME)))
{sp=NULL; return -1; }
(*name) += strlen(ENCODED_NAME);
strtok((*name) + 1 , "\"");
if( (!p0 && p1) || (p0 && p1 && p1<p0))
{
(*value) = sp = p1 + 2;
type = 2;
}
else if(p0)
{
(*value) = sp = p0 + 4;
type = 4;
}
else
{
sp=NULL;
return -1;
}
if((p1 = memstr(temp_sp, boundary, dsize - boundarylen)))
temp_sp = p1;
else
temp_sp = sp + dsize;
*(temp_sp - type) = 0;
// 檢查是不是file 若是就給fileinfo
if((dp=memstr(
(*name) + strlen(*name) +1, ENCODED_FILENAME, dsize)) &&
dp < *value)
{
dp += strlen(ENCODED_FILENAME);
p0 = strchr(dp,'"');
*p0 = 0;
if(p0 - dp>3)
{
fileheader_t *file=(fileheader_t *)pcalloc(p, sizeof(fileheader_t));
if((ftype = strstr(p0 + 1, ENCODED_CONTENT)))
{
ftype += strlen(ENCODED_CONTENT);
strtok(ftype, "\r\n");
}
while(p0 > dp && *p0 !='/' && *p0 !='\\') p0--;
strcpy(file->name, p0+1);
strcpy(file->content_type, ftype);
file->icontent_type = filetype(ftype);
// if(file->icontent_type & (FILE_TXT | FILE_HTML))
// file->size = strlen(sp);
// else
file->size = temp_sp - sp - type;
file->uploadtime = time(NULL);
file->data = (*value);
(*value) = (char *)file;
}
else
{
(*value) = NULL;
}
}
dsize -= (temp_sp - sp);
sp = temp_sp;
return 1;
}
else
{
sp=NULL;
return -1;
}
}
dp = (*name) = sp;
while(1) {
ch = *sp++;
switch(ch) {
case '+':
*dp++ = ' ';
break;
case '=':
*dp++ = '\0';
(*value) = dp;
break;
case '&': case '|':
*dp++ = '\0';
return 1;
case '\0': case EOF:
*dp = '\0';
sp=NULL;
return 0;
case '%':
ch = *sp++; ch1 = *sp++;
*dp++ = xtoc(ch, ch1);
break;
default:
*dp++=ch;
break;
}
}
}
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