comparison: src/server/service.c
src/server/service.c
- changeset 14
- b8bf95b39952
- parent 13
- 1fdbf4170ef4
- child 15
- cff9c4101dd7
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| 13:1fdbf4170ef4 | 14:b8bf95b39952 |
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| 1 /* | |
| 2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. | |
| 3 * | |
| 4 * Copyright 2011 Olaf Wintermann. All rights reserved. | |
| 5 * | |
| 6 * Redistribution and use in source and binary forms, with or without | |
| 7 * modification, are permitted provided that the following conditions are met: | |
| 8 * | |
| 9 * 1. Redistributions of source code must retain the above copyright | |
| 10 * notice, this list of conditions and the following disclaimer. | |
| 11 * | |
| 12 * 2. Redistributions in binary form must reproduce the above copyright | |
| 13 * notice, this list of conditions and the following disclaimer in the | |
| 14 * documentation and/or other materials provided with the distribution. | |
| 15 * | |
| 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
| 17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE | |
| 20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
| 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
| 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
| 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
| 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
| 26 * POSSIBILITY OF SUCH DAMAGE. | |
| 27 */ | |
| 28 | |
| 29 #include <stdio.h> | |
| 30 #include <errno.h> | |
| 31 #include <sys/file.h> | |
| 32 #include <sys/stat.h> | |
| 33 | |
| 34 #include "service.h" | |
| 35 #include "io.h" | |
| 36 #include "pblock.h" | |
| 37 #include "protocol.h" | |
| 38 | |
| 39 #include <sys/sendfile.h> | |
| 40 #include "strbuf.h" | |
| 41 | |
| 42 // TODO: system sendfile Abstraktionen in neue Datei auslagern | |
| 43 /* | |
| 44 ssize_t sys_sendfile(int out_fd, int in_fd, off_t *off, size_t len) { | |
| 45 | |
| 46 } | |
| 47 */ | |
| 48 #define sys_sendfile sendfile | |
| 49 | |
| 50 | |
| 51 /* | |
| 52 * prepares for servicing a file | |
| 53 * | |
| 54 * adds content-length header and starts the response | |
| 55 * | |
| 56 * return the file descriptor or an error code | |
| 57 */ | |
| 58 int prepare_service_file(Session *sn, Request *rq) { | |
| 59 char *ppath = pblock_findkeyval(pb_key_ppath, rq->vars); | |
| 60 | |
| 61 /* open the file */ | |
| 62 int fd = open(ppath, O_RDONLY); | |
| 63 if(fd < 0) { | |
| 64 perror("prepare_service_file: open"); | |
| 65 | |
| 66 int status = 500; | |
| 67 switch(errno) { | |
| 68 case EACCES: { | |
| 69 status = 403; | |
| 70 break; | |
| 71 } | |
| 72 case ENOENT: { | |
| 73 status = 404; | |
| 74 break; | |
| 75 } | |
| 76 } | |
| 77 protocol_status(sn, rq, status, NULL); | |
| 78 return -1; | |
| 79 } | |
| 80 | |
| 81 /* get stat */ | |
| 82 struct stat stat; | |
| 83 if (fstat(fd, &stat) != 0) { | |
| 84 perror("prepare_service_file: stat"); | |
| 85 | |
| 86 protocol_status(sn, rq, 500, NULL); | |
| 87 return -1; | |
| 88 } | |
| 89 | |
| 90 /* add content-length header*/ | |
| 91 char contentLength[32]; | |
| 92 int len = snprintf(contentLength, 32, "%d", stat.st_size); | |
| 93 | |
| 94 pblock_kvinsert(pb_key_content_length, contentLength, len, rq->srvhdrs); | |
| 95 | |
| 96 /* start response */ | |
| 97 protocol_status(sn, rq, 200, NULL); | |
| 98 http_start_response(sn, rq); | |
| 99 | |
| 100 return fd; | |
| 101 } | |
| 102 | |
| 103 int send_file(pblock *pb, Session *sn, Request *rq) { | |
| 104 printf("test_service\n"); | |
| 105 | |
| 106 // request body test begin | |
| 107 char *ctval = pblock_findkeyval(pb_key_content_length, rq->headers); | |
| 108 if(ctval != NULL) { | |
| 109 printf("read request body\n"); | |
| 110 | |
| 111 printf("netbuf{%d}\n", sn->inbuf); | |
| 112 | |
| 113 int c; | |
| 114 while((c = netbuf_getc(sn->inbuf)) != IO_EOF) { | |
| 115 putchar(c); | |
| 116 } | |
| 117 printf("\n"); | |
| 118 } | |
| 119 | |
| 120 | |
| 121 // end test | |
| 122 | |
| 123 int fd = prepare_service_file(sn, rq); | |
| 124 if(fd < 0) { | |
| 125 /* TODO: service error */ | |
| 126 http_start_response(sn, rq); | |
| 127 return REQ_PROCEED; | |
| 128 } | |
| 129 | |
| 130 /* send file*/ | |
| 131 SystemIOStream *io = (SystemIOStream*) sn->csd; | |
| 132 | |
| 133 off_t fileoffset = 0; | |
| 134 int len = atoi(pblock_findkeyval(pb_key_content_length, rq->srvhdrs)); | |
| 135 printf("content-length: %d\n", len); | |
| 136 sendfile(io->fd, fd, &fileoffset, len); | |
| 137 | |
| 138 close(fd); | |
| 139 | |
| 140 return REQ_PROCEED; | |
| 141 } | |
| 142 | |
| 143 int service_hello(pblock *pb, Session *sn, Request *rq) { | |
| 144 pblock_nninsert("content-length", 13, rq->srvhdrs); | |
| 145 protocol_status(sn, rq, 200, NULL); | |
| 146 http_start_response(sn, rq); | |
| 147 net_write(sn->csd, "Hello World!\n", 13); | |
| 148 return REQ_PROCEED; | |
| 149 } | |
| 150 | |
| 151 int service_index(pblock *pb, Session *sn, Request *rq) { | |
| 152 printf("service_index\n"); | |
| 153 | |
| 154 char *ppath = pblock_findkeyval(pb_key_ppath, rq->vars); | |
| 155 char *uri = pblock_findkeyval(pb_key_uri, rq->reqpb); | |
| 156 | |
| 157 sstr_t r_uri = sstr(uri); | |
| 158 | |
| 159 /* open the file */ | |
| 160 int fd = open(ppath, O_RDONLY); | |
| 161 if(fd < 0) { | |
| 162 perror("service_index: open"); | |
| 163 | |
| 164 int status = 500; | |
| 165 switch(errno) { | |
| 166 case EACCES: { | |
| 167 status = 403; | |
| 168 break; | |
| 169 } | |
| 170 case ENOENT: { | |
| 171 status = 404; | |
| 172 break; | |
| 173 } | |
| 174 } | |
| 175 protocol_status(sn, rq, status, NULL); | |
| 176 printf("REQ_ABORTED\n"); | |
| 177 return REQ_ABORTED; | |
| 178 } | |
| 179 | |
| 180 DIR *dir = fdopendir(fd); | |
| 181 if(dir == NULL) { | |
| 182 protocol_status(sn, rq, 500, NULL); | |
| 183 printf("DIR is null\n"); | |
| 184 return REQ_ABORTED; | |
| 185 } | |
| 186 | |
| 187 sbuf_t *out = sbuf_new(1024); /* output buffer */ | |
| 188 | |
| 189 /* write html header */ | |
| 190 sbuf_puts(out, "<html>\n<head>\n<title>Index of "); | |
| 191 sbuf_puts(out, uri); | |
| 192 sbuf_puts(out, "</title>\n</head><body>\n<h1>Index of "); | |
| 193 sbuf_puts(out, uri); | |
| 194 sbuf_puts(out, "</h1><hr>\n\n"); | |
| 195 | |
| 196 struct dirent *f; | |
| 197 while((f = readdir(dir)) != NULL) { | |
| 198 if(strcmp(f->d_name, ".") == 0 || strcmp(f->d_name, "..") == 0) { | |
| 199 continue; | |
| 200 } | |
| 201 | |
| 202 sstr_t filename = sstr(f->d_name); | |
| 203 | |
| 204 sbuf_puts(out, "<a href=\""); | |
| 205 sbuf_append(out, r_uri); | |
| 206 sbuf_append(out, filename); | |
| 207 sbuf_puts(out, "\">"); | |
| 208 sbuf_append(out, filename); | |
| 209 sbuf_puts(out, "</a><br>\n"); | |
| 210 } | |
| 211 | |
| 212 sbuf_puts(out, "\n</body>\n</html>\n"); | |
| 213 | |
| 214 /* send stuff to client */ | |
| 215 pblock_removekey(pb_key_content_type, rq->srvhdrs); | |
| 216 pblock_kvinsert(pb_key_content_type, "text/html", 9, rq->srvhdrs); | |
| 217 pblock_nninsert("content-length", out->length, rq->srvhdrs); | |
| 218 protocol_status(sn, rq, 200, NULL); | |
| 219 http_start_response(sn, rq); | |
| 220 | |
| 221 net_write(sn->csd, out->ptr, out->length); | |
| 222 | |
| 223 /* close */ | |
| 224 closedir(dir); | |
| 225 | |
| 226 return REQ_PROCEED; | |
| 227 } |
