steam-frame/KarnerF--SMPlusGui
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Fix icon: extract tid from mp, use /data/homebrew/{tid}/ symlink, cache always by tid

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KarnerF committed 2026-08-30 13:47:22 +02:00
1 parent 110c9cb1cd
commit b7a039e80e
1 file changed
+19 -7
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main.c
+19 -7
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@@ -2925,22 +2925,34 @@ static void fn(struct mg_connection *c, int ev, void *ev_data) {
else if(mg_match(hm->uri,mg_str("/api/game/icon"),NULL)){
char tid[64]={0}; mg_http_get_var(&hm->query,"title_id",tid,sizeof(tid));
char mp[128]={0}; mg_http_get_var(&hm->query,"mp",mp,sizeof(mp));
/* sanitise mp: only alnum, dot, underscore */
/* sanitise mp: only alnum, underscore, hyphen */
for(int i=0;mp[i];i++) if(!isalnum((unsigned char)mp[i])&&mp[i]!='_'&&mp[i]!='-'){mp[0]=0;break;}
/* sanitise tid: only alphanumeric */
for(int i=0;tid[i];i++) if(!isalnum((unsigned char)tid[i])){tid[0]=0;break;}
if(!tid[0]&&!mp[0]){mg_http_reply(c,404,"","");return;}
/* extract tid from mp basename when tid not supplied: PPSA20515_name_hash -> PPSA20515 */
if(!tid[0]&&mp[0]){
char tmp[64]={0}; strncpy(tmp,mp,sizeof(tmp)-1);
char *us=strchr(tmp,'_'); if(us) *us=0;
if(strlen(tmp)==9){
int ok=1;
for(int i=0;i<4;i++) if(!isalpha((unsigned char)tmp[i])){ok=0;break;}
for(int i=4;i<9;i++) if(!isdigit((unsigned char)tmp[i])){ok=0;break;}
if(ok) strncpy(tid,tmp,sizeof(tid)-1);
}
}
if(!tid[0]){mg_http_reply(c,404,"","");return;}
#define SMG_ICON_CACHE "/data/SMPlusGui/icon-cache"
/* cache key: prefer mp over tid since mp is more specific */
char ckey[128]; snprintf(ckey,sizeof(ckey),"%s",mp[0]?mp:tid);
char cache[256]; snprintf(cache,sizeof(cache),SMG_ICON_CACHE "/%s.png",ckey);
/* always cache under tid so unmounted lookups hit the same entry */
char cache[256]; snprintf(cache,sizeof(cache),SMG_ICON_CACHE "/%s.png",tid);
/* serve from our own cache if available */
FILE *f=fopen(cache,"rb");
/* if not cached, try live mount paths and populate cache */
if(!f){
char src[256]; FILE *sf=NULL;
/* try mount_point path first (most direct) */
if(mp[0]&&!sf){
/* /data/homebrew/{tid}/ is SM's symlink - most reliable path */
if(!sf){ snprintf(src,sizeof(src),"/data/homebrew/%s/sce_sys/icon0.png",tid); sf=fopen(src,"rb"); }
/* also try mount_point directly */
if(!sf&&mp[0]){
snprintf(src,sizeof(src),"/mnt/shadowmnt/%s/sce_sys/icon0.png",mp);
sf=fopen(src,"rb");
}