diff options
Diffstat (limited to 'cgit.c')
| -rw-r--r-- | cgit.c | 410 |
1 files changed, 410 insertions, 0 deletions
diff --git a/cgit.c b/cgit.c new file mode 100644 index 0000000..4c14f77 --- /dev/null +++ b/cgit.c @@ -0,0 +1,410 @@ +#include "cgit.h" + +static const char cgit_doctype[] = +"<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\"\n" +" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">\n"; + +static const char cgit_error[] = +"<div class='error'>%s</div>"; + +static const char cgit_lib_error[] = +"<div class='error'>%s: %s</div>"; + + +char *cgit_root = "/var/git"; +char *cgit_root_title = "Git repository browser"; +char *cgit_css = "/cgit.css"; +char *cgit_logo = "/git-logo.png"; +char *cgit_logo_link = "http://www.kernel.org/pub/software/scm/git/docs/"; +char *cgit_virtual_root = NULL; + +char *cgit_repo_name = NULL; +char *cgit_repo_desc = NULL; +char *cgit_repo_owner = NULL; + +char *cgit_query_repo = NULL; +char *cgit_query_page = NULL; +char *cgit_query_head = NULL; + +int cgit_parse_query(char *txt, configfn fn) +{ + char *t = txt, *value = NULL, c; + + if (!txt) + return 0; + + while((c=*t) != '\0') { + if (c=='=') { + *t = '\0'; + value = t+1; + } else if (c=='&') { + *t = '\0'; + (*fn)(txt, value); + txt = t+1; + value = NULL; + } + t++; + } + if (t!=txt) + (*fn)(txt, value); + return 0; +} + +void cgit_global_config_cb(const char *name, const char *value) +{ + if (!strcmp(name, "root")) + cgit_root = xstrdup(value); + else if (!strcmp(name, "root-title")) + cgit_root_title = xstrdup(value); + else if (!strcmp(name, "css")) + cgit_css = xstrdup(value); + else if (!strcmp(name, "logo")) + cgit_logo = xstrdup(value); + else if (!strcmp(name, "logo-link")) + cgit_logo_link = xstrdup(value); + else if (!strcmp(name, "virtual-root")) + cgit_virtual_root = xstrdup(value); +} + +void cgit_repo_config_cb(const char *name, const char *value) +{ + if (!strcmp(name, "name")) + cgit_repo_name = xstrdup(value); + else if (!strcmp(name, "desc")) + cgit_repo_desc = xstrdup(value); + else if (!strcmp(name, "owner")) + cgit_repo_owner = xstrdup(value); +} + +void cgit_querystring_cb(const char *name, const char *value) +{ + if (!strcmp(name,"r")) + cgit_query_repo = xstrdup(value); + else if (!strcmp(name, "p")) + cgit_query_page = xstrdup(value); + else if (!strcmp(name, "h")) + cgit_query_head = xstrdup(value); +} + +char *cgit_repourl(const char *reponame) +{ + if (cgit_virtual_root) { + return fmt("%s/%s/", cgit_virtual_root, reponame); + } else { + return fmt("?r=%s", reponame); + } +} + +char *cgit_pageurl(const char *reponame, const char *pagename, + const char *query) +{ + if (cgit_virtual_root) { + return fmt("%s/%s/%s/?%s", cgit_virtual_root, reponame, + pagename, query); + } else { + return fmt("?r=%s&p=%s&%s", reponame, pagename, query); + } +} + +static int cgit_print_branch_cb(const char *refname, const unsigned char *sha1, + int flags, void *cb_data) +{ + struct commit *commit; + char buf[256], *url; + + commit = lookup_commit(sha1); + if (commit && !parse_commit(commit)){ + html("<tr><td>"); + url = cgit_pageurl(cgit_query_repo, "log", + fmt("h=%s", refname)); + html_link_open(url, NULL, NULL); + strncpy(buf, refname, sizeof(buf)); + html_txt(buf); + html_link_close(); + html("</td><td>"); + pretty_print_commit(CMIT_FMT_ONELINE, commit, ~0, buf, + sizeof(buf), 0, NULL, NULL, 0); + html_txt(buf); + html("</td></tr>\n"); + } else { + html("<tr><td>"); + html_txt(buf); + html("</td><td>"); + htmlf("*** bad ref %s", sha1_to_hex(sha1)); + html("</td></tr>\n"); + } + return 0; +} + +static void cgit_print_docstart(char *title) +{ + html("Content-Type: text/html; charset=utf-8\n"); + html("\n"); + html(cgit_doctype); + html("<html>\n"); + html("<head>\n"); + html("<title>"); + html_txt(title); + html("</title>\n"); + html("<link rel='stylesheet' type='text/css' href='"); + html_attr(cgit_css); + html("'/>\n"); + html("</head>\n"); + html("<body>\n"); +} + +static void cgit_print_docend() +{ + html("</body>\n</html>\n"); +} + +static void cgit_print_pageheader(char *title) +{ + html("<div id='header'>"); + htmlf("<a href='%s'>", cgit_logo_link); + htmlf("<img id='logo' src='%s'/>\n", cgit_logo); + htmlf("</a>"); + html_txt(title); + html("</div>"); +} + +static void cgit_print_repolist() +{ + DIR *d; + struct dirent *de; + struct stat st; + char *name; + + cgit_print_docstart(cgit_root_title); + cgit_print_pageheader(cgit_root_title); + + if (!(d = opendir("."))) { + htmlf(cgit_lib_error, "Unable to scan repository directory", + strerror(errno)); + cgit_print_docend(); + return; + } + + html("<h2>Repositories</h2>\n"); + html("<table class='list'>"); + html("<tr><th>Name</th><th>Description</th><th>Owner</th></tr>\n"); + while ((de = readdir(d)) != NULL) { + if (de->d_name[0] == '.') + continue; + if (stat(de->d_name, &st) < 0) + continue; + if (!S_ISDIR(st.st_mode)) + continue; + + cgit_repo_name = cgit_repo_desc = cgit_repo_owner = NULL; + name = fmt("%s/.git/info/cgit", de->d_name); + if (cgit_read_config(name, cgit_repo_config_cb)) + continue; + + html("<tr><td>"); + html_link_open(cgit_repourl(de->d_name), NULL, NULL); + html_txt(cgit_repo_name); + html_link_close(); + html("</td><td>"); + html_txt(cgit_repo_desc); + html("</td><td>"); + html_txt(cgit_repo_owner); + html("</td></tr>\n"); + } + closedir(d); + html("</table>"); + cgit_print_docend(); +} + +static void cgit_print_branches() +{ + html("<table class='list'>"); + html("<tr><th>Branch name</th><th>Head commit</th></tr>\n"); + for_each_branch_ref(cgit_print_branch_cb, NULL); + html("</table>"); +} + +static int get_one_line(char *txt) +{ + char *t; + + for(t=txt; *t != '\n' && t != '\0'; t++) + ; + *t = '\0'; + return t-txt-1; +} + +static void cgit_print_commit_shortlog(struct commit *commit) +{ + char *h, *t, *p; + char *tree = NULL, *author = NULL, *subject = NULL; + int len; + time_t sec; + struct tm *time; + char buf[32]; + + h = t = commit->buffer; + + if (strncmp(h, "tree ", 5)) + die("Bad commit format: %s", + sha1_to_hex(commit->object.sha1)); + + len = get_one_line(h); + tree = h+5; + h += len + 2; + + while (!strncmp(h, "parent ", 7)) + h += get_one_line(h) + 2; + + if (!strncmp(h, "author ", 7)) { + author = h+7; + h += get_one_line(h) + 2; + t = author; + while(t!=h && *t!='<') + t++; + *t='\0'; + p = t; + while(--t!=author && *t==' ') + *t='\0'; + while(++p!=h && *p!='>') + ; + while(++p!=h && !isdigit(*p)) + ; + + t = p; + while(++p && isdigit(*p)) + ; + *p = '\0'; + sec = atoi(t); + time = gmtime(&sec); + } + + while((len = get_one_line(h)) > 0) + h += len+2; + + h++; + len = get_one_line(h); + + subject = h; + + html("<tr><td>"); + strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S", time); + html_txt(buf); + html("</td><td>"); + char *qry = fmt("h=%s", sha1_to_hex(commit->object.sha1)); + char *url = cgit_pageurl(cgit_query_repo, "view", qry); + html_link_open(url, NULL, NULL); + html_txt(subject); + html_link_close(); + html("</td><td>"); + html_txt(author); + html("</td></tr>\n"); +} + +static void cgit_print_log(const char *tip, int ofs, int cnt) +{ + struct rev_info rev; + struct commit *commit; + const char *argv[2] = {NULL, tip}; + int n = 0; + + init_revisions(&rev, NULL); + rev.abbrev = DEFAULT_ABBREV; + rev.commit_format = CMIT_FMT_DEFAULT; + rev.verbose_header = 1; + rev.show_root_diff = 0; + setup_revisions(2, argv, &rev, NULL); + prepare_revision_walk(&rev); + + html("<h2>Log</h2>"); + html("<table class='list'>"); + html("<tr><th>Date</th><th>Message</th><th>Author</th></tr>\n"); + while ((commit = get_revision(&rev)) != NULL && n++ < 100) { + cgit_print_commit_shortlog(commit); + free(commit->buffer); + commit->buffer = NULL; + free_commit_list(commit->parents); + commit->parents = NULL; + } + html("</table>\n"); +} + +static void cgit_print_repo_summary() +{ + html("<h2>"); + html_txt("Repo summary page"); + html("</h2>"); + cgit_print_branches(); +} + +static void cgit_print_object(char *hex) +{ + unsigned char sha1[20]; + //struct object *object; + char type[20]; + unsigned char *buf; + unsigned long size; + + if (get_sha1_hex(hex, sha1)){ + htmlf(cgit_error, "Bad hex value"); + return; + } + + if (sha1_object_info(sha1, type, NULL)){ + htmlf(cgit_error, "Bad object name"); + return; + } + + buf = read_sha1_file(sha1, type, &size); + if (!buf) { + htmlf(cgit_error, "Error reading object"); + return; + } + + buf[size] = '\0'; + html("<h2>Object view</h2>"); + htmlf("sha1=%s<br/>type=%s<br/>size=%i<br/>", hex, type, size); + html("<pre>"); + html_txt(buf); + html("</pre>"); +} + +static void cgit_print_repo_page() +{ + if (chdir(cgit_query_repo) || + cgit_read_config(".git/info/cgit", cgit_repo_config_cb)) { + char *title = fmt("%s - %s", cgit_root_title, "Bad request"); + cgit_print_docstart(title); + cgit_print_pageheader(title); + htmlf(cgit_lib_error, "Unable to scan repository", + strerror(errno)); + cgit_print_docend(); + return; + } + + char *title = fmt("%s - %s", cgit_repo_name, cgit_repo_desc); + cgit_print_docstart(title); + cgit_print_pageheader(title); + if (!cgit_query_page) + cgit_print_repo_summary(); + else if (!strcmp(cgit_query_page, "log")) { + cgit_print_log(cgit_query_head, 0, 100); + } else if (!strcmp(cgit_query_page, "view")) { + cgit_print_object(cgit_query_head); + } + cgit_print_docend(); +} + +int main(int argc, const char **argv) +{ + if (cgit_read_config("/etc/cgitrc", cgit_global_config_cb)) + die("Error reading config: %d %s", errno, strerror(errno)); + + chdir(cgit_root); + cgit_parse_query(getenv("QUERY_STRING"), cgit_querystring_cb); + if (cgit_query_repo) + cgit_print_repo_page(); + else + cgit_print_repolist(); + return 0; +} |