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1 /* |
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2 * page-download.c -- page /download/<id> |
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3 * |
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4 * Copyright (c) 2020 David Demelier <markand@malikania.fr> |
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5 * |
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6 * Permission to use, copy, modify, and/or distribute this software for any |
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7 * purpose with or without fee is hereby granted, provided that the above |
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8 * copyright notice and this permission notice appear in all copies. |
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9 * |
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10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
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13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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17 */ |
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18 |
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19 #include <sys/types.h> |
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20 #include <assert.h> |
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21 #include <stdarg.h> |
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22 #include <stdint.h> |
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23 |
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24 #include <kcgi.h> |
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25 |
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26 #include "database.h" |
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27 #include "image.h" |
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28 #include "page.h" |
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29 |
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30 static void |
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31 get(struct kreq *r) |
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32 { |
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33 struct image image = {0}; |
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34 |
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35 if (!database_get(&image, r->path)) |
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36 page(r, NULL, KHTTP_404, "pages/404.html"); |
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37 else { |
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38 khttp_head(r, kresps[KRESP_CONTENT_TYPE], "%s", kmimetypes[KMIME_APP_OCTET_STREAM]); |
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39 khttp_head(r, kresps[KRESP_CONTENT_LENGTH], "%llu", (unsigned long long)image.datasz); |
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40 khttp_head(r, kresps[KRESP_CONNECTION], "keep-alive"); |
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41 khttp_head(r, kresps[KRESP_CONTENT_DISPOSITION], |
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42 "attachment; filename=\"%s\"", image.filename); |
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43 khttp_body(r); |
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44 khttp_write(r, image.data, image.datasz); |
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45 khttp_free(r); |
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46 image_finish(&image); |
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47 } |
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48 } |
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49 |
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50 void |
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51 page_download(struct kreq *r) |
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52 { |
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53 assert(r); |
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54 |
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55 switch (r->method) { |
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56 case KMETHOD_GET: |
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57 get(r); |
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58 break; |
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59 default: |
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60 page(r, NULL, KHTTP_400, "pages/400.html"); |
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61 break; |
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62 } |
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63 } |
