[4699] | 1 | //emul_gopher.c: |
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| 2 | |
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| 3 | /* |
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| 4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2010 |
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| 5 | * |
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| 6 | * This file is part of roard a part of RoarAudio, |
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| 7 | * a cross-platform sound system for both, home and professional use. |
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| 8 | * See README for details. |
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| 9 | * |
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| 10 | * This file is free software; you can redistribute it and/or modify |
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| 11 | * it under the terms of the GNU General Public License version 3 |
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| 12 | * as published by the Free Software Foundation. |
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| 13 | * |
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| 14 | * RoarAudio is distributed in the hope that it will be useful, |
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| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 17 | * GNU General Public License for more details. |
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| 18 | * |
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| 19 | * You should have received a copy of the GNU General Public License |
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| 20 | * along with this software; see the file COPYING. If not, write to |
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| 21 | * the Free Software Foundation, 51 Franklin Street, Fifth Floor, |
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| 22 | * Boston, MA 02110-1301, USA. |
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| 23 | * |
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| 24 | */ |
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| 25 | |
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| 26 | #include "roard.h" |
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| 27 | |
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| 28 | #ifndef ROAR_WITHOUT_DCOMP_EMUL_GOPHER |
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| 29 | #include <roaraudio/proto_gopher.h> |
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| 30 | |
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[4703] | 31 | #define _INFO ROAR_GOPHER_TYPE_INFO |
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| 32 | #define _DIR ROAR_GOPHER_TYPE_DIR |
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| 33 | #define _FILE ROAR_GOPHER_TYPE_FILE |
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| 34 | #define _SOUND ROAR_GOPHER_TYPE_SOUND |
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| 35 | |
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| 36 | static struct roar_gopher_menu_item g_gopher_root_menu[] = { |
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| 37 | {.type = _INFO, .name = "roard Root Menu"}, |
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| 38 | {.type = _FILE, .name = "Server Info", .selector = "/info.txt", .host = NULL, .port = 0} |
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| 39 | }; |
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| 40 | |
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| 41 | static struct item { |
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| 42 | const char * selector; |
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| 43 | char type; |
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| 44 | struct roar_gopher_menu menu; |
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| 45 | struct roar_audio_info info; |
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| 46 | int dir; |
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| 47 | const char * text; |
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| 48 | } g_gopher_items[] = { |
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| 49 | {.selector = "", .type = _DIR, |
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| 50 | .menu = {.items = g_gopher_root_menu, .items_len = sizeof(g_gopher_root_menu)/sizeof(*g_gopher_root_menu)} |
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| 51 | }, |
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| 52 | // and again as selector '/' as some clients seems to require it: |
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| 53 | {.selector = "/", .type = _DIR, |
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| 54 | .menu = {.items = g_gopher_root_menu, .items_len = sizeof(g_gopher_root_menu)/sizeof(*g_gopher_root_menu)} |
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| 55 | }, |
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| 56 | {.selector = "/info.txt", .type = _FILE, .text = "Some\nText."} |
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| 57 | }; |
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| 58 | |
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| 59 | |
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| 60 | static int strip_nl (char * str) { |
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| 61 | register char c; |
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| 62 | |
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| 63 | for (; (c = *str) != 0; str++) { |
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| 64 | if ( c == '\r' || c == '\n' ) { |
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| 65 | *str = 0; |
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| 66 | return 1; |
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| 67 | } |
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| 68 | } |
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| 69 | |
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| 70 | return 0; |
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| 71 | } |
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| 72 | |
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| 73 | static int send_menu (int client, struct roar_gopher_menu * menu) { |
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| 74 | struct roar_buffer * buf; |
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| 75 | struct roar_gopher_menu_item * item; |
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| 76 | const size_t len = 80; |
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| 77 | size_t i; |
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| 78 | void * data; |
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| 79 | char * chardata; |
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[4704] | 80 | char * host; |
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| 81 | unsigned int port; |
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[4703] | 82 | |
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| 83 | for (i = 0; i < menu->items_len; i++) { |
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| 84 | item = &(menu->items[i]); |
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| 85 | if ( roar_buffer_new_data(&buf, len, &data) == -1 ) |
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| 86 | return -1; |
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| 87 | |
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| 88 | chardata = data; |
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| 89 | |
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| 90 | switch (item->type) { |
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| 91 | case _INFO: |
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| 92 | snprintf(data, len-1, "i%s\tfake\t(NULL)\t0\r\n", item->name); |
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| 93 | break; |
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| 94 | default: |
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[4704] | 95 | host = item->host; |
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| 96 | port = item->port; |
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| 97 | snprintf(data, len-1, "%c%s\t%s\t%s\t%u\r\n", item->type, item->name, item->selector, host, port); |
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[4703] | 98 | break; |
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| 99 | } |
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| 100 | |
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| 101 | chardata[len-1] = 0; |
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| 102 | |
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| 103 | roar_buffer_set_len(buf, strlen(data)); |
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| 104 | |
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| 105 | clients_add_output(client, buf); |
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| 106 | } |
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| 107 | |
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| 108 | return 0; |
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| 109 | } |
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| 110 | |
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| 111 | static int send_text (int client, const char * text) { |
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| 112 | struct roar_buffer * buf; |
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| 113 | void * data; |
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| 114 | size_t len = strlen(text); |
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| 115 | |
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| 116 | if ( roar_buffer_new_data(&buf, len+6, &data) == -1 ) |
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| 117 | return -1; |
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| 118 | |
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| 119 | memcpy(data, text, len); |
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| 120 | memcpy(data+len, "\r\n.\r\n\0", 6); |
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| 121 | clients_add_output(client, buf); |
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| 122 | |
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| 123 | return 0; |
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| 124 | } |
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| 125 | |
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| 126 | int emul_gopher_check_client(int client, struct roar_vio_calls * vio) { |
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| 127 | struct roar_client_server * cs; |
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| 128 | struct roar_vio_calls rvio; |
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| 129 | struct item * c = NULL; |
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| 130 | char inbuf[1024]; |
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| 131 | ssize_t ret; |
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| 132 | size_t i; |
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| 133 | int funcret = -1; |
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| 134 | size_t len = 0; |
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| 135 | void * data; |
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| 136 | |
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| 137 | if ( clients_get_server(client, &cs) == -1 ) { |
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| 138 | clients_delete(client); |
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| 139 | return -1; |
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| 140 | } |
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| 141 | |
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| 142 | if ( vio == NULL ) { |
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| 143 | vio = &rvio; |
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| 144 | roar_vio_open_fh_socket(vio, clients_get_fh(client)); |
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| 145 | } |
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| 146 | |
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| 147 | if ( cs->inbuf != NULL ) { |
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| 148 | len = sizeof(inbuf)-1; |
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| 149 | if ( roar_buffer_shift_out(&(cs->inbuf), inbuf, &len) == -1 ) { |
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| 150 | clients_delete(client); |
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| 151 | return -1; |
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| 152 | } |
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| 153 | |
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| 154 | if ( cs->inbuf != NULL ) { |
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| 155 | roar_buffer_free(cs->inbuf); |
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| 156 | clients_delete(client); |
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| 157 | return -1; |
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| 158 | } |
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| 159 | |
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| 160 | // test if we have still buffer space left. |
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| 161 | if ( len == (sizeof(inbuf)-1) ) { |
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| 162 | clients_delete(client); |
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| 163 | return -1; |
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| 164 | } |
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| 165 | } |
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| 166 | |
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| 167 | ret = roar_vio_read(vio, inbuf+len, sizeof(inbuf)-len-1); |
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| 168 | if ( ret < 1 ) { |
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| 169 | clients_delete(client); |
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| 170 | return -1; |
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| 171 | } |
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| 172 | |
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| 173 | ret += len; |
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| 174 | |
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| 175 | inbuf[ret] = 0; |
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| 176 | |
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| 177 | if ( !strip_nl(inbuf) ) { |
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| 178 | if ( roar_buffer_new_data(&(cs->inbuf), ret, &data) == -1 ) { |
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| 179 | clients_delete(client); |
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| 180 | return -1; |
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| 181 | } |
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| 182 | |
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| 183 | memcpy(data, inbuf, ret); |
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| 184 | return 0; |
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| 185 | } |
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| 186 | |
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| 187 | for (i = 0; i < sizeof(g_gopher_items)/sizeof(*g_gopher_items); i++) { |
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| 188 | if ( !strcmp(g_gopher_items[i].selector, inbuf) ) { |
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| 189 | c = &(g_gopher_items[i]); |
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| 190 | break; |
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| 191 | } |
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| 192 | } |
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| 193 | |
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| 194 | if ( c == NULL ) { |
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| 195 | clients_delete(client); |
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| 196 | return -1; |
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| 197 | } |
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| 198 | |
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| 199 | switch (c->type) { |
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| 200 | case _DIR: |
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| 201 | funcret = send_menu(client, &(c->menu)); |
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| 202 | break; |
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| 203 | case _FILE: |
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| 204 | funcret = send_text(client, c->text); |
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| 205 | break; |
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| 206 | default: |
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| 207 | funcret = -1; |
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| 208 | break; |
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| 209 | } |
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| 210 | |
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| 211 | if ( funcret == -1 ) { |
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| 212 | clients_delete(client); |
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| 213 | return -1; |
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| 214 | } |
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| 215 | |
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| 216 | return 0; |
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| 217 | } |
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| 218 | |
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| 219 | int emul_gopher_flushed_client(int client, struct roar_vio_calls * vio) { |
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| 220 | return clients_delete(client); |
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| 221 | } |
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| 222 | |
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[4699] | 223 | #endif |
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| 224 | |
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| 225 | //ll |
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