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https://github.com/Zeal-Operating-System/ZealOS.git
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Port Gopher client.
(Gopher client from https://github.com/DeclanHoare/tos-gopher) Implement TCPSocketReceiveLine and TCPConnectionCreate. Update HolyC --> CosmiC conversion script. Include DNS before TCP so that DNSAddressInfoGet can be used in TCP methods.
This commit is contained in:
TomAwezome
parent
8306996ff4
commit
9ac4b35c29
4 changed files with 376 additions and 2 deletions
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@ -17,9 +17,10 @@ Cd(__DIR__);;
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#include "Utilities/BST"
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#include "Protocols/UDP/MakeUDP"
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#include "Protocols/TCP/MakeTCP"
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#include "Protocols/DNS"
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#include "Protocols/TCP/MakeTCP"
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#include "Protocols/DHCP"
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#include "Utilities/NetHandler" // needs IPV4, UDP, ICMP
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290
src/Home/Net/Programs/Gopher.CC
Executable file
290
src/Home/Net/Programs/Gopher.CC
Executable file
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@ -0,0 +1,290 @@
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/* Gopher client for TempleOS/Sockets
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by Declan Hoare 2020
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ported to ZealOS by TomAwezome in 2021
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Public Domain - No Warranty */
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#define GOPHER_CLIENT_LOADED
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#ifndef GOPHER_ASSOCIATIONS
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#define GOPHER_ASSOCIATIONS
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U8* gopher_associations[256];
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#endif
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I64 GopherOpen(U8* host, U16 port, U8* selector, U8* query)
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{
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U8* line;
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I64 sock;
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if (host == NULL)
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{
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return -1;
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}
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// sock = create_connection(host, port);
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sock = TCPConnectionCreate(host, port);
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if (sock < 0)
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{
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PrintErr("Failed to connect to %s:%d\n", host, port);
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return sock;
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}
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if (query == NULL)
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{
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line = StrPrint(NULL, "%s\r\n", selector);
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}
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else
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{
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line = StrPrint(NULL, "%s\t%s\r\n", selector, query);
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}
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// sendString(sock, line, 0);
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TCPSocketSendString(sock, line);
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Free(line);
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return sock;
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}
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public I64 GopherDl
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(U8* host, U16 port = 70, U8* selector, U8* query = NULL, U8* dest)
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{
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CFile* f;
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U8 buf[BLK_SIZE];
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I64 data_len = 0, total_len = 0, got, sock;
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f = FOpen(dest, "w");
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if (!f)
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{
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PrintErr("Failed to open %s for writing\n", dest);
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return -1;
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}
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sock = GopherOpen(host, port, selector, query);
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if (sock < 0)
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{
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return sock;
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}
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while (TRUE)
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{
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// got = recv(sock, buf + data_len, sizeof(buf) - data_len, 0);
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got = TCPSocketReceive(sock, buf + data_len, sizeof(buf) - data_len);
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if (got <= 0)
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{
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if (data_len != 0 && !FBlkWrite(f, buf))
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{
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break;
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}
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f->de.size = total_len;
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FClose(f);
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return got;
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}
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data_len += got;
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total_len += got;
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if (data_len == BLK_SIZE)
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{
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if (!FBlkWrite(f, buf))
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{
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break;
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}
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data_len = 0;
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}
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}
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PrintErr("Write failed, %s may be corrupted\n", dest);
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FClose(f);
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return -1;
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}
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U0 PrintEscaped(U8* txt, U8* backslashes = "")
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{
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U8* cur;
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U8 offending;
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while (cur = StrFirstOcc(txt, "$$\\\""))
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{
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offending = *cur;
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*cur = 0;
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if (offending == '$$')
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{
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"%s$$$$", txt;
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}
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else
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{
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"%s%s%c", txt, backslashes, offending;
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}
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txt = cur + 1;
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}
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"%s", txt;
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}
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U8* GopherBasename(U8* selector)
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{
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U8* lastslash = StrLastOcc(selector, "/");
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if (lastslash == NULL)
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{
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return selector;
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}
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else
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{
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return lastslash + 1;
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}
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}
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U0 GopherTextView(U8* host, U16 port, U8* selector)
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{
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U8* basename;
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U8* tmpname;
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DirMake("::/Tmp/Gopher");
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basename = ExtChange(GopherBasename(selector), "TXT");
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tmpname = StrPrint(NULL, "::/Tmp/Gopher/%s", basename);
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Free(basename);
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if (GopherDl(host, port, selector, , tmpname) == 0)
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{
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Plain(tmpname);
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}
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else
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{
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PrintErr("Failed to download %s from %s:%d\n",
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selector, host, port);
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}
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Free(tmpname);
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}
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U0 GopherLine(U8* line)
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{
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U8 type;
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U8* display;
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U8* selector;
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U8* host = NULL;
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U16 port = 0;
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if (*line == 0)
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{
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"\n";
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return;
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}
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type = *line++;
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display = line;
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line = StrFind("\t", line);
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if (line)
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{
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*line = 0;
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line++;
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}
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selector = line;
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if (line)
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{
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line = StrFind("\t", line);
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}
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if (line)
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{
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*line = 0;
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line++;
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}
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host = line;
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if (line)
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{
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line = StrFind("\t", line);
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}
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if (line)
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{
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*line = 0;
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line++;
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port = Str2I64(line);
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}
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switch (type)
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{
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case '3':
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PrintErr("");
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case 'i':
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PrintEscaped(display);
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break;
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default:
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"$$MA,\"";
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PrintEscaped(display, "\\");
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"\",LM=\"%s(\\\"", gopher_associations[type];
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PrintEscaped(host, "\\\\\\");
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"\\\",%d,\\\"", port;
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PrintEscaped(selector, "\\\\\\");
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"\\\");\\n\"$$";
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}
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"\n";
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}
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public I64 GopherMenu
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(U8* host, U16 port = 70, U8* selector = "/", U8* query = NULL)
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{
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I64 sock, n;
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U8 buf[256];
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sock = GopherOpen(host, port, selector, query);
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if (sock < 0)
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{
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return sock;
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}
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do
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{
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// n = recvLine(sock, buf, sizeof(buf), 0);
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n = TCPSocketReceiveLine(sock, buf, sizeof(buf));
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if (StrCompare(buf, ".") == 0)
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{
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break;
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}
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GopherLine(buf);
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}
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while (n > 0);
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// close(sock);
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TCPSocketClose(sock);
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return 0;
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}
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class CQueryForm
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{
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U8 query[65] format "$$DA-P,A=\"Query:%s\"$$";
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};
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U0 GopherQueryPrompt(U8* host, U16 port, U8* selector)
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{
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CQueryForm form;
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form.query[0] = 0;
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if (PopUpForm(&form))
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{
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GopherMenu(host, port, selector, form.query);
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}
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}
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class CDlForm
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{
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U8 name[256] format "$$DA-P,LEN=255,A=\"FileName:%s\"$$";
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};
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U0 GopherDlPrompt(U8* host, U16 port, U8* selector)
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{
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CDlForm form;
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U8* basename;
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basename = GopherBasename(selector);
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MemCopy(form.name, basename,
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MinI64(StrLen(basename), sizeof(form.name) - 1));
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form.name[255] = 0;
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if (PopUpForm(&form))
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{
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GopherDl(host, port, selector, , form.name);
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}
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}
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MemSetI64(gopher_associations, "GopherDlPrompt", 256);
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gopher_associations['0'] = "GopherTextView";
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gopher_associations['1'] = "GopherMenu";
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gopher_associations['7'] = "GopherQueryPrompt";
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/* Include this file from your HomeSys, then add more associations */
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"\n\nTry using GopherMenu to connect to a gopher server,"
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"for example: GopherMenu(\"gopher.floodgap.com\");\n\n";
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@ -1076,7 +1076,10 @@ I64 TCPSocketConnect(CTCPSocket *tcp_socket, CSocketAddressStorage *address)
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}
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if (tcp_socket->state != TCP_STATE_ESTABLISHED)
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{
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NetErr("TCP SOCKET CONNECT: Failed to establish TCP Socket connection.");
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return -1;
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}
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switch (tcp_socket->socket->state)
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{
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@ -1303,6 +1306,28 @@ I64 TCPSocketReceive(CTCPSocket *tcp_socket, U8 *buffer, I64 length)
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return read_total;
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}
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I64 TCPSocketReceiveLine(CTCPSocket *tcp_socket, U8 *buffer, I64 size)
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{
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I64 received = 0;
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while (received + 1 < size)
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{
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if (TCPSocketReceive(tcp_socket, buffer + received, 1) <= 0)
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{
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NetErr("TCP SOCKET RECEIVE LINE: Failed at TCPSocketReceive.");
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return -1;
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}
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if (buffer[received] == '\n')
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break;
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else if (buffer[received] != '\r')
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received++;
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}
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// Shrine has 'FIXME: safe but incorrect behavior on overflow'
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buffer[received] = 0; // terminate string
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return received;
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}
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I64 TCPSocketSend(CTCPSocket *tcp_socket, U8 *buffer, I64 length)
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{
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I64 sent_total = 0;
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@ -1399,6 +1424,62 @@ I64 TCPSocketSendString(CTCPSocket *tcp_socket, U8 *string)
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return TCPSocketSendAll(tcp_socket, string, StrLen(string));
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}
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CTCPSocket *TCPConnectionCreate(U8 *hostname, U16 port)
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{
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CSocketAddressIPV4 socket_addr;
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CAddressInfo *current;
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CAddressInfo *info = NULL;
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I64 error = DNSAddressInfoGet(hostname, NULL, &info);
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CTCPSocket *result;
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if (error < 0)
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{
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NetErr("TCP CONNECTION CREATE: Failed at DNSAddressInfoGet.");
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AddressInfoFree(info);
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return NULL;
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}
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socket_addr.family = AF_INET;
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socket_addr.port = EndianU16(port);
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socket_addr.address.address = INADDR_ANY;
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current = info;
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while (current)
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{
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if (current->family == AF_INET && (current->socket_type == 0 || current->socket_type == SOCKET_STREAM))
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{ // TODO: IPV6 support !
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socket_addr.address.address = EndianU32(current->address(CSocketAddressIPV4 *)->address.address); // ?? why are bits flipped here
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AddressInfoFree(info);
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result = TCPSocket(AF_INET);
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if (!result)
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{
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NetErr("TCP CONNECTION CREATE: Failed to create new TCP Socket.");
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return NULL;
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}
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result->timeout = TCP_TIMEOUT;
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error = TCPSocketConnect(result, &socket_addr);
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if (error < 0)
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{
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NetErr("TCP CONNECTION CREATE: Failed to connect TCP Socket to address.");
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TCPSocketClose(result);
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return error;
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}
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return result;
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}
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current = current->next;
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}
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NetErr("TCP CONNECTION CREATE: Failed to find a suitable address.");
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AddressInfoFree(info);
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return NULL;
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}
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U0 TCPTreeNodeRep(CTCPTreeNode *node)
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{
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CTCPTreeQueue *queue = node->queue->next;
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@ -39,6 +39,7 @@ U0 Cvt(U8 *ff_mask="*", U8 *fu_flags="+r+l-i+S")
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Find("LstMatch", ff_mask, fu_flags, "ListMatch");
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Find("DefineLstLoad", ff_mask, fu_flags, "DefineListLoad");
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Find("ExtDft", ff_mask, fu_flags, "ExtDefault");
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Find("ExtChg", ff_mask, fu_flags, "ExtChange");
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Find("RegDft", ff_mask, fu_flags, "RegDefault");
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Find("\"HC\"", ff_mask, fu_flags, "\"CC\"");
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Find("CDrv", ff_mask, fu_flags, "CDrive");
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@ -60,6 +61,7 @@ U0 Cvt(U8 *ff_mask="*", U8 *fu_flags="+r+l-i+S")
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Find("fp_draw_ms", ff_mask, fu_flags, "fp_draw_mouse");
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Find("DrawStdMs", ff_mask, fu_flags, "DrawStdMouse");
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Find("WIG_TASK_DFT", ff_mask, fu_flags, "WIG_TASK_DEFAULT");
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Find("DirMk", ff_mask, fu_flags, "DirMake");
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"\n$$BK,1$$$$LTRED$$Might want to go over these$$FG$$$$BK,0$$\n";
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