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-rw-r--r--url.h261
1 files changed, 0 insertions, 261 deletions
diff --git a/url.h b/url.h
deleted file mode 100644
index 6304a48..0000000
--- a/url.h
+++ /dev/null
@@ -1,261 +0,0 @@
-#ifndef URL_H
-#define URL_H
-
-#include <netdb.h>
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-
-//reserved = gen-delims / sub-delims
-#define pe_gen_delims ":/?#[]@"
-#define pe_sub_delims "!$&'()*+,;="
-//char *pe_reserved[]=pe_gen_delims "" pe_sub_delims;
-#define pe_ALPHA "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
-#define pe_DIGIT "0123456789"
-#define pe_HPUT "-._~"
-//char *pe_unreserved[]=pe_ALPHA "" pe_DIGIT "" pe_HPUT;
-
-unsigned char rfc3086_percent_encoding[256];
-
-#define isxdigit(a) ((a >= 'a' && a <= 'f') || (a >= '0' && a <= '9') || (a >= 'A' && a <= 'F'))
-#define toupper(a) ((a >= 'a' && a <= 'z')?a-' ':a)
-
-char *reserved={
- pe_gen_delims
- pe_sub_delims
- pe_ALPHA
- pe_DIGIT
- pe_HPUT
-};
-
-int urlescapelength(char *in,int len) {
- int rlen=0;//be sure to add one to this return value if you plan on putting a null byte at the end.
- int i;
- for(i=0;i<len;i++) {
- rlen+=strchr(reserved,in[i])?1:3;
- }
- return rlen;
-}
-
-// make sure your out char * has enough space! use urlescapelength for it.
-void urlescape(char *in,char *out,int len) {
- int i;
- int j;
- for(i=0,j=0;i<len;i++) {
- if(strchr(reserved,in[i])) {
- out[j]=in[i];
- j++;
- } else {
- out[j]='%';
- j++;
- out[j]="0123456789ABCDEF"[(in[i] >> 4 & 0x15)];
- j++;
- out[j]="0123456789ABCDEF"[(in[i] % 16)];
- j++;
- }
- }
-}
-
-int urlunescape(char *in,char *out) {
- char *o=out;
- char *t;
- char a,b;
- char *s=in;
- if(!strchr(s,'%')) memmove(out,in,strlen(in));
- while((t=strchr(s,'%'))) {
- if(t-s) {//if there are actually bytes to copy.
- memmove(o,s,t-s);
- o+=(t-s);
- s+=(t-s);
- }
- if(isxdigit(t[1]) && isxdigit(t[2])) {
- s+=3;//skip the %XX
- a=toupper(t[1]);
- b=toupper(t[2]);
- *o=((a-'0'<10 ? a-'0' : a-'A'+10) << 4) + (b-'0'<10 ? b-'0' : b-'A'+10);
- o++;
- } else {
- s++;//skip just the %. the next character might be a % //TODO: look up what the "right" thing to do here is.
- *o='%';
- o++;
- }
- }
- //copy the last part.
- memmove(o,s,strlen(s));
- o[strlen(s)]=0;
- return o+strlen(s)-out;
-}
-
-struct url {
- char *scheme;
- char *username;
- char *password;
- char *domain;
- char *port;
- char *path;
- char *query_string;
- char *fragment_id;
-};
-
-
-/*
- schemes are case sensitive but cononicals are lower case.
- domain is case insensitive. return it lowercased?
- port is optional and in decimal
- path
- scheme://username:password@domain:port/path?query_string#fragment_id
- mailto:username@domain
-
- optional stuff:
- scheme, username, password, port, path, query_string, fragment_id
-*/
-
-void urlfromline(struct url *u,char *line) {
- int i;
- char hack=0;//we need to allow for // as host//path separator
- //split at first single / into line and path
- //this fails to split scheme://host//path into: scheme, host, /path. needs to be first single / or second double-or-more-/
- for(i=0;line[i];i++) {
- if(line[i] == '/' && line[i+1] == '/') {
- if(!hack) {//only skip out on the first // because it is probably used in the scheme.
- hack=1;
- i++;
- continue;
- }
- }
- if(line[i] == '/') {
- line[i]=0;
- u->path=line+i+1;
- break;
- }
- }
- if(u->path) {
- if(strchr(u->path,'?')) {
- u->query_string=strchr(u->path,'?');
- *u->query_string=0;
- u->query_string++;
- }
- }
-
- if(u->query_string) {
- if(strchr(u->query_string,'#')) {
- u->fragment_id=strchr(u->query_string,'#');
- *u->fragment_id=0;
- u->fragment_id++;
- }
- }
-
- if(strstr(line,"://")) {
- u->scheme=line;
- u->domain=strstr(line,"://");
- *u->domain=0;
- u->domain+=3;
- } else {
- u->domain=line;
- }
-
- if(u->domain) {
- if(strchr(u->domain,'@')) {
- u->username=u->domain;
- u->domain=strchr(u->domain,'@');
- *u->domain=0;
- u->domain++;
- }
- }
-
- if(u->username) {
- if(strchr(u->username,':')) {
- u->password=strchr(u->username,':');
- *u->password=0;
- u->password++;
- }
- }
-
- if(u->domain) {
- if(strchr(u->domain,']')) {//the end of an IPv6 address
- if(strchr(strchr(u->domain,']'),':')) {
- u->port=strchr(strchr(u->domain,']'),':');
- if(u->port[1] == '?') {//for magnet links
- u->port=0;
- } else {
- *u->port=0;
- u->port++;
- }
- }
- } else {
- if(strchr(u->domain,':')) {
- u->port=strchr(u->domain,':');
- if(u->port[1] == '?') {//for magnet links
- u->port=0;
- } else {
- *u->port=0;
- u->port++;
- }
- }
- }
- }
- if(u->port) {
- for(i=0;u->port[i];i++) {
- if(u->port[i] < '0' || u->port[i] > '9') {
- //this port number isn't a number!
- //it is probably a different portion of the url then... and the domain is probably the scheme.
- if(u->domain && !u->scheme) {
- u->scheme=u->domain;
- u->domain=0;
- }
- if(!u->path) {
- u->path=u->port;
- u->port=0;
- }
- break;
- }
- }
- }
-
- if(u->domain) {//for magnet links.
- if(strchr(u->domain,'?')) {
- u->query_string=strchr(u->domain,'?');
- *u->query_string=0;
- u->query_string++;
- }
- }
-
- if(u->domain) {
- if(strchr(u->domain,':') && !strchr(u->domain,']')) {//for scheme:?query_string
- u->scheme=u->domain;
- *strchr(u->scheme,':')=0;
- u->domain=0;
- }
- }
-
- if(!u->scheme && u->username) {//for mailto:
- u->scheme=u->username;
- u->username=u->password;
- u->password=0;
- }
-}
-
-#define AorB(a,b) ((a)?(a):(b))
-
-void magic_and_defaults(struct url *u) {
- struct servent *serv;
- char sport[10];
- u->scheme=AorB(u->scheme,AorB(getenv("URL_SCHEME"),"DEFAULT"));
- u->username=AorB(u->username,AorB(getenv("URL_USERNAME"),"DEFAULT"));
- u->password=AorB(u->password,AorB(getenv("URL_PASSWORD"),"DEFAULT"));
- u->domain=AorB(u->domain,AorB(getenv("URL_DOMAIN"),"DEFAULT"));
- serv=getservbyname(u->scheme,strcmp(u->scheme,"udp")?"tcp":"udp");//gets default port for the scheme. http -> 80
- if(serv) snprintf(sport,sizeof(sport)-1,"%d",ntohs(serv->s_port));
-// else snprintf(sport,sizeof(sport)-1,"%d",serv);
- u->port=AorB(u->port,AorB(getenv("URL_PORT"),(serv?strdup(sport):"DEFAULT")));
-
-// if(!strcmp(u->port,"DEFAULT")) {
- //this shouldn't happen most of the time. :/
-// printf("serv: %d\nsport: %s\nu->scheme: %s\n",serv,sport,u->scheme);
-// }
-
- u->path=AorB(u->path,AorB(getenv("URL_PATH"),"DEFAULT"));
- u->query_string=AorB(u->query_string,AorB(getenv("URL_QUERY_STRING"),"DEFAULT"));
- u->fragment_id=AorB(u->fragment_id,AorB(getenv("URL_FRAGMENT_ID"),"DEFAULT"));
-}
-#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-15 02:35:57 +0000