stagit-index.c (6354B)
1 #include <err.h> 2 #include <limits.h> 3 #include <stdio.h> 4 #include <stdlib.h> 5 #include <string.h> 6 #include <time.h> 7 #include <unistd.h> 8 9 #include <git2.h> 10 11 #include "config.h" 12 13 static git_repository *repo; 14 15 static const char *relpath = ""; 16 17 static char description[255] = "Repositories"; 18 static char *name = ""; 19 20 /* Handle read or write errors for a FILE * stream */ 21 void 22 checkfileerror(FILE *fp, const char *name, int mode) 23 { 24 if (mode == 'r' && ferror(fp)) 25 errx(1, "read error: %s", name); 26 else if (mode == 'w' && (fflush(fp) || ferror(fp))) 27 errx(1, "write error: %s", name); 28 } 29 30 void 31 joinpath(char *buf, size_t bufsiz, const char *path, const char *path2) 32 { 33 int r; 34 35 r = snprintf(buf, bufsiz, "%s%s%s", 36 path, path[0] && path[strlen(path) - 1] != '/' ? "/" : "", path2); 37 if (r < 0 || (size_t)r >= bufsiz) 38 errx(1, "path truncated: '%s%s%s'", 39 path, path[0] && path[strlen(path) - 1] != '/' ? "/" : "", path2); 40 } 41 42 /* Percent-encode, see RFC3986 section 2.1. */ 43 void 44 percentencode(FILE *fp, const char *s, size_t len) 45 { 46 static char tab[] = "0123456789ABCDEF"; 47 unsigned char uc; 48 size_t i; 49 50 for (i = 0; *s && i < len; s++, i++) { 51 uc = *s; 52 /* NOTE: do not encode '/' for paths or ",-." */ 53 if (uc < ',' || uc >= 127 || (uc >= ':' && uc <= '@') || 54 uc == '[' || uc == ']') { 55 putc('%', fp); 56 putc(tab[(uc >> 4) & 0x0f], fp); 57 putc(tab[uc & 0x0f], fp); 58 } else { 59 putc(uc, fp); 60 } 61 } 62 } 63 64 /* Escape characters below as HTML 2.0 / XML 1.0. */ 65 void 66 xmlencode(FILE *fp, const char *s, size_t len) 67 { 68 size_t i; 69 70 for (i = 0; *s && i < len; s++, i++) { 71 switch(*s) { 72 case '<': fputs("<", fp); break; 73 case '>': fputs(">", fp); break; 74 case '\'': fputs("'" , fp); break; 75 case '&': fputs("&", fp); break; 76 case '"': fputs(""", fp); break; 77 default: putc(*s, fp); 78 } 79 } 80 } 81 82 void 83 printtimeshort(FILE *fp, const git_time *intime) 84 { 85 struct tm *intm; 86 time_t t; 87 char out[32]; 88 89 t = (time_t)intime->time; 90 if (!(intm = gmtime(&t))) 91 return; 92 strftime(out, sizeof(out), "%Y-%m-%d %H:%M", intm); 93 fputs(out, fp); 94 } 95 96 void 97 writeheader(FILE *fp) 98 { 99 fputs("<!DOCTYPE html>\n" 100 "<html>\n<head>\n" 101 "<meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\" />\n" 102 "<meta name=\"viewport\" content=\"width=device-width, initial-scale=1\" />\n" 103 "<title>", fp); 104 fputs(indextitle, fp); 105 fprintf(fp, "</title>\n<link rel=\"icon\" type=\"image/png\" href=\"%sfavicon.png\" />\n", relpath); 106 fprintf(fp, "<link rel=\"stylesheet\" type=\"text/css\" href=\"%sstyle.css\" />\n", relpath); 107 fputs("</head>\n<body class=\"git\">\n", fp); 108 fprintf(fp, "<nav>\n\t<h4><a href=\"/\">%s</a></h4>\n", navtitle); 109 fputs("\t<div class=\"navbar\">\n", fp); 110 for (int i = 0; i < (sizeof(navbar)/sizeof(*navbar)); i++) 111 fprintf(fp, "\t\t<a href=\"/%s\">%s</a>\n", navbar[i][1], navbar[i][0]); 112 fputs("\t</div><hr>\n</nav>\n<h1>", fp); 113 xmlencode(fp, description, strlen(description)); 114 fputs("</h1>\n<div id=\"content\">\n" 115 "<table id=\"index\"><thead>\n" 116 "<tr><td><b>Name</b></td><td><b>Description</b></td>" 117 "<td><b>Last commit</b></td></tr>" 118 "</thead><tbody>\n", fp); 119 } 120 121 void 122 writefooter(FILE *fp) 123 { 124 fputs("</tbody>\n</table>\n</div>\n", fp); 125 fputs("<footer>\n\t<hr>\n\t<p><a href=\"/\">", fp); 126 fputs(siteurl, fp); 127 fputs("</a></p>\n\t<div>\n\t<img src=\"/assets/xmr.svg\" " 128 "style=\"max-height:1.5em;border-radius: 10px\" alt=\"XMR\"> " 129 "Monero (XMR): <div class=\"crypto\" style=\"display: inline-block;\"><code>" 130 "866mNUnXQr32FhZ9SFgfmedr2KjYQnhCwbmAxzqJ1nteCVsv8eifyn6E6cuQvyhRAVY5arYznUiUtBBbzBpiGqKCSrEqVxS" 131 "</code></div>\n\t</div>\n</footer>", fp); 132 fputs("</body>\n</html>\n", fp); 133 } 134 135 int 136 writelog(FILE *fp) 137 { 138 git_commit *commit = NULL; 139 const git_signature *author; 140 git_revwalk *w = NULL; 141 git_oid id; 142 char *stripped_name = NULL, *p; 143 int ret = 0; 144 145 git_revwalk_new(&w, repo); 146 git_revwalk_push_head(w); 147 148 if (git_revwalk_next(&id, w) || 149 git_commit_lookup(&commit, repo, &id)) { 150 ret = -1; 151 goto err; 152 } 153 154 author = git_commit_author(commit); 155 156 /* strip .git suffix */ 157 if (!(stripped_name = strdup(name))) 158 err(1, "strdup"); 159 if ((p = strrchr(stripped_name, '.'))) 160 if (!strcmp(p, ".git")) 161 *p = '\0'; 162 163 fputs("<tr><td><a href=\"", fp); 164 percentencode(fp, stripped_name, strlen(stripped_name)); 165 fputs("/log.html\">", fp); 166 xmlencode(fp, stripped_name, strlen(stripped_name)); 167 fputs("</a></td><td>", fp); 168 xmlencode(fp, description, strlen(description)); 169 fputs("</td><td>", fp); 170 if (author) 171 printtimeshort(fp, &(author->when)); 172 fputs("</td></tr>", fp); 173 174 git_commit_free(commit); 175 err: 176 git_revwalk_free(w); 177 free(stripped_name); 178 179 return ret; 180 } 181 182 int 183 main(int argc, char *argv[]) 184 { 185 FILE *fp; 186 char path[PATH_MAX], repodirabs[PATH_MAX + 1]; 187 const char *repodir; 188 int i, ret = 0; 189 190 if (argc < 2) { 191 fprintf(stderr, "usage: %s [repodir...]\n", argv[0]); 192 return 1; 193 } 194 195 /* do not search outside the git repository: 196 GIT_CONFIG_LEVEL_APP is the highest level currently */ 197 git_libgit2_init(); 198 for (i = 1; i <= GIT_CONFIG_LEVEL_APP; i++) 199 git_libgit2_opts(GIT_OPT_SET_SEARCH_PATH, i, ""); 200 /* do not require the git repository to be owned by the current user */ 201 git_libgit2_opts(GIT_OPT_SET_OWNER_VALIDATION, 0); 202 203 #ifdef __OpenBSD__ 204 if (pledge("stdio rpath", NULL) == -1) 205 err(1, "pledge"); 206 #endif 207 208 writeheader(stdout); 209 210 for (i = 1; i < argc; i++) { 211 repodir = argv[i]; 212 if (!realpath(repodir, repodirabs)) 213 err(1, "realpath"); 214 215 if (git_repository_open_ext(&repo, repodir, 216 GIT_REPOSITORY_OPEN_NO_SEARCH, NULL)) { 217 fprintf(stderr, "%s: cannot open repository\n", argv[0]); 218 ret = 1; 219 continue; 220 } 221 222 /* use directory name as name */ 223 if ((name = strrchr(repodirabs, '/'))) 224 name++; 225 else 226 name = ""; 227 228 /* read description or .git/description */ 229 joinpath(path, sizeof(path), repodir, "description"); 230 if (!(fp = fopen(path, "r"))) { 231 joinpath(path, sizeof(path), repodir, ".git/description"); 232 fp = fopen(path, "r"); 233 } 234 description[0] = '\0'; 235 if (fp) { 236 if (!fgets(description, sizeof(description), fp)) 237 description[0] = '\0'; 238 checkfileerror(fp, "description", 'r'); 239 fclose(fp); 240 } 241 242 writelog(stdout); 243 } 244 writefooter(stdout); 245 246 /* cleanup */ 247 git_repository_free(repo); 248 git_libgit2_shutdown(); 249 250 checkfileerror(stdout, "<stdout>", 'w'); 251 252 return ret; 253 }