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annotate page-index.c @ 81:1ffe2f5a8500

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pasterd: use HTML files to allow themes
author David Demelier <markand@malikania.fr>
date Fri, 17 Mar 2023 07:56:01 +0100
parents 52029a52a385
children 0a29424e4486
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1 /*
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2 * page-index.c -- page /
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3 *
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4 * Copyright (c) 2020-2023 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 <assert.h>
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20
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21 #include "database.h"
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22 #include "page-index.h"
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23 #include "page-status.h"
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24 #include "page.h"
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25 #include "paste.h"
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26 #include "util.h"
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27
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28 #define LIMIT 16
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29 #define TITLE "paster -- recent pastes"
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30
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31 struct page {
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32 struct kreq *req;
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33 struct ktemplate template;
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34 const struct paste *pastes;
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35 const size_t pastesz;
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36 };
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37
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38 enum {
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39 KEYWORD_PASTES
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40 };
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41
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42 static const char * const keywords[] = {
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43 [KEYWORD_PASTES] = "pastes"
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44 };
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45
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46 static int
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47 format(size_t keyword, void *data)
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48 {
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49 struct page *page = data;
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50 struct khtmlreq html;
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51 const struct paste *paste;
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52
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53 khtml_open(&html, page->req, KHTML_PRETTY);
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54
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55 switch (keyword) {
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56 case KEYWORD_PASTES:
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57 for (size_t i = 0; i < page->pastesz; ++i) {
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58 paste = &page->pastes[i];
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59
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60 khtml_elem(&html, KELEM_TR);
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61
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62 /* link */
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63 khtml_elem(&html, KELEM_TD);
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64 khtml_attr(&html, KELEM_A,
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65 KATTR_HREF, bprintf("/paste/%s", paste->id), KATTR__MAX);
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66 khtml_printf(&html, paste->title);
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67 khtml_closeelem(&html, 1);
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68
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69 /* author */
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70 khtml_elem(&html, KELEM_TD);
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71 khtml_puts(&html, paste->author);
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72 khtml_closeelem(&html, 1);
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74 /* language */
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75 khtml_elem(&html, KELEM_TD);
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76 khtml_puts(&html, paste->language);
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77 khtml_closeelem(&html, 1);
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78
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79 /* date */
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80 khtml_elem(&html, KELEM_TD);
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81 khtml_puts(&html, bstrftime("%F %T", localtime(&paste->timestamp)));
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82 khtml_closeelem(&html, 1);
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83
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84 /* expiration */
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85 khtml_elem(&html, KELEM_TD);
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86 khtml_puts(&html, ttl(paste->timestamp, paste->duration));
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87 khtml_closeelem(&html, 1);
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88
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89 khtml_closeelem(&html, 1);
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90
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91 }
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92 break;
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93 default:
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94 break;
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95 }
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96
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97 khtml_close(&html);
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98
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99 return 1;
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100 }
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101
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102 static void
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103 get(struct kreq *req)
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104 {
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105 struct paste pastes[LIMIT];
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106 size_t pastesz = NELEM(pastes);
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107
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108 if (database_recents(pastes, &pastesz) < 0)
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109 page_status(req, KHTTP_500);
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110 else {
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111 page_index_render(req, pastes, pastesz);
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112
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113 for (size_t i = 0; i < pastesz; ++i)
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114 paste_finish(&pastes[i]);
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115 }
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116 }
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117
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118 void
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119 page_index_render(struct kreq *req, const struct paste *pastes, size_t pastesz)
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120 {
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121 assert(req);
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122 assert(pastes);
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123
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124 struct page self = {
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125 .req = req,
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126 .template = {
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127 .cb = format,
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128 .arg = &self,
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129 .key = keywords,
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130 .keysz = NELEM(keywords)
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131 },
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132 .pastes = pastes,
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133 .pastesz = pastesz
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134 };
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135
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136 page(req, KHTTP_200, TITLE, "index.html", &self.template);
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137 }
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138
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139 void
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140 page_index(struct kreq *req)
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141 {
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142 assert(req);
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143
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144 switch (req->method) {
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145 case KMETHOD_GET:
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146 get(req);
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147 break;
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148 default:
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149 page_status(req, KHTTP_400);
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150 break;
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151 }
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152 }