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/* cmd.c: the cgit command dispatcher
 *
 * Copyright (C) 2008 Lars Hjemli
 *
 * Licensed under GNU General Public License v2
 *   (see COPYING for full license text)
 */

#include "cgit.h"
#include "cmd.h"
#include "cache.h"
#include "ui-shared.h"
#include "ui-atom.h"
#include "ui-blob.h"
#include "ui-clone.h"
#include "ui-commit.h"
#include "ui-diff.h"
#include "ui-log.h"
#include "ui-patch.h"
#include "ui-plain.h"
#include "ui-refs.h"
#include "ui-repolist.h"
#include "ui-snapshot.h"
#include "ui-stats.h"
#include "ui-summary.h"
#include "ui-tag.h"
#include "ui-tree.h"

static void HEAD_fn(struct cgit_context *ctx)
{
	cgit_clone_head(ctx);
}

static void atom_fn(struct cgit_context *ctx)
{
	cgit_print_atom(ctx->qry.head, ctx->qry.path, 10);
}

static void about_fn(struct cgit_context *ctx)
{
	if (ctx->repo)
		cgit_print_repo_readme();
	else
		cgit_print_site_readme();
}

static void blob_fn(struct cgit_context *ctx)
{
	cgit_print_blob(ctx->qry.sha1, ctx->qry.path, ctx->qry.head);
}

static void commit_fn(struct cgit_context *ctx)
{
	cgit_print_commit(ctx->qry.sha1);
}

static void diff_fn(struct cgit_context *ctx)
{
	cgit_print_diff(ctx->qry.sha1, ctx->qry.sha2, ctx->qry.path);
}

static void info_fn(struct cgit_context *ctx)
{
	cgit_clone_info(ctx);
}

static void log_fn(struct cgit_context *ctx)
{
	cgit_print_log(ctx->qry.sha1, ctx->qry.ofs, ctx->cfg.max_commit_count,
		       ctx->qry.grep, ctx->qry.search, ctx->qry.path, 1);
}

static void ls_cache_fn(struct cgit_context *ctx)
{
	ctx->page.mimetype = "text/plain";
	ctx->page.filename = "ls-cache.txt";
	cgit_print_http_headers(ctx);
	cache_ls(ctx->cfg.cache_root);
}

static void objects_fn(struct cgit_context *ctx)
{
	cgit_clone_objects(ctx);
}

static void repolist_fn(struct cgit_context *ctx)
{
	cgit_print_repolist();
}

static void patch_fn(struct cgit_context *ctx)
{
	cgit_print_patch(ctx->qry.sha1);
}

static void plain_fn(struct cgit_context *ctx)
{
	cgit_print_plain(ctx);
}

static void refs_fn(struct cgit_context *ctx)
{
	cgit_print_refs();
}

static void snapshot_fn(struct cgit_context *ctx)
{
	cgit_print_snapshot(ctx->qry.head, ctx->qry.sha1,
			    cgit_repobasename(ctx->repo->url), ctx->qry.path,
			    ctx->repo->snapshots, ctx->qry.nohead);
}

static void stats_fn(struct cgit_context *ctx)
{
	cgit_show_stats(ctx);
}

static void summary_fn(struct cgit_context *ctx)
{
	cgit_print_summary();
}

static void tag_fn(struct cgit_context *ctx)
{
	cgit_print_tag(ctx->qry.sha1);
}

static void tree_fn(struct cgit_context *ctx)
{
	cgit_print_tree(ctx->qry.sha1, ctx->qry.path);
}

#define def_cmd(name, want_repo, want_layout) \
	{#name, name##_fn, want_repo, want_layout}

struct cgit_cmd *cgit_get_cmd(struct cgit_context *ctx)
{
	static struct cgit_cmd cmds[] = {
		def_cmd(HEAD, 1, 0),
		def_cmd(atom, 1, 0),
		def_cmd(about, 0, 1),
		def_cmd(blob, 1, 0),
		def_cmd(commit, 1, 1),
		def_cmd(diff, 1, 1),
		def_cmd(info, 1, 0),
		def_cmd(log, 1, 1),
		def_cmd(ls_cache, 0, 0),
		def_cmd(objects, 1, 0),
		def_cmd(patch, 1, 0),
		def_cmd(plain, 1, 0),
		def_cmd(refs, 1, 1),
		def_cmd(repolist, 0, 0),
		def_cmd(snapshot, 1, 0),
		def_cmd(stats, 1, 1),
		def_cmd(summary, 1, 1),
		def_cmd(tag, 1, 1),
		def_cmd(tree, 1, 1),
	};
	int i;

	if (ctx->qry.page == NULL) {
		if (ctx->repo)
			ctx->qry.page = "summary";
		else
			ctx->qry.page = "repolist";
	}

	for(i = 0; i < sizeof(cmds)/sizeof(*cmds); i++)
		if (!strcmp(ctx->qry.page, cmds[i].name))
			return &cmds[i];
	return NULL;
}
span class="w"> "%fd", "%fe", "%ff" }; int htmlfd = STDOUT_FILENO; char *fmt(const char *format, ...) { static char buf[8][1024]; static int bufidx; int len; va_list args; bufidx++; bufidx &= 7; va_start(args, format); len = vsnprintf(buf[bufidx], sizeof(buf[bufidx]), format, args); va_end(args); if (len>sizeof(buf[bufidx])) { fprintf(stderr, "[html.c] string truncated: %s\n", format); exit(1); } return buf[bufidx]; } void html_raw(const char *data, size_t size) { write(htmlfd, data, size); } void html(const char *txt) { write(htmlfd, txt, strlen(txt)); } void htmlf(const char *format, ...) { static char buf[65536]; va_list args; va_start(args, format); vsnprintf(buf, sizeof(buf), format, args); va_end(args); html(buf); } void html_status(int code, const char *msg, int more_headers) { htmlf("Status: %d %s\n", code, msg); if (!more_headers) html("\n"); } void html_txt(const char *txt) { const char *t = txt; while(t && *t){ int c = *t; if (c=='<' || c=='>' || c=='&') { write(htmlfd, txt, t - txt); if (c=='>') html("&gt;"); else if (c=='<') html("&lt;"); else if (c=='&') html("&amp;"); txt = t+1; } t++; } if (t!=txt) html(txt); } void html_ntxt(int len, const char *txt) { const char *t = txt; while(t && *t && len--){ int c = *t; if (c=='<' || c=='>' || c=='&') { write(htmlfd, txt, t - txt); if (c=='>') html("&gt;"); else if (c=='<') html("&lt;"); else if (c=='&') html("&amp;"); txt = t+1; } t++; } if (t!=txt) write(htmlfd, txt, t - txt); if (len<0) html("..."); } void html_attr(const char *txt) { const char *t = txt; while(t && *t){ int c = *t; if (c=='<' || c=='>' || c=='\'' || c=='\"') { write(htmlfd, txt, t - txt); if (c=='>') html("&gt;"); else if (c=='<') html("&lt;"); else if (c=='\'') html("&#x27;"); else if (c=='"') html("&quot;"); txt = t+1; } t++; } if (t!=txt) html(txt); } void html_url_path(const char *txt) { const char *t = txt; while(t && *t){ int c = *t; const char *e = url_escape_table[c]; if (e && c!='+' && c!='&' && c!='+') { write(htmlfd, txt, t - txt); write(htmlfd, e, 3); txt = t+1; } t++; } if (t!=txt) html(txt); } void html_url_arg(const char *txt) { const char *t = txt; while(t && *t){ int c = *t; const char *e = url_escape_table[c]; if (e) { write(htmlfd, txt, t - txt); write(htmlfd, e, 3); txt = t+1; } t++; } if (t!=txt) html(txt); } void html_hidden(const char *name, const char *value) { html("<input type='hidden' name='"); html_attr(name); html("' value='"); html_attr(value); html("'/>"); } void html_option(const char *value, const char *text, const char *selected_value) { html("<option value='"); html_attr(value); html("'"); if (selected_value && !strcmp(selected_value, value)) html(" selected='selected'"); html(">"); html_txt(text); html("</option>\n"); } void html_link_open(const char *url, const char *title, const char *class) { html("<a href='"); html_attr(url); if (title) { html("' title='"); html_attr(title); } if (class) { html("' class='"); html_attr(class); } html("'>"); } void html_link_close(void) { html("</a>"); } void html_fileperm(unsigned short mode) { htmlf("%c%c%c", (mode & 4 ? 'r' : '-'), (mode & 2 ? 'w' : '-'), (mode & 1 ? 'x' : '-')); } int html_include(const char *filename) { FILE *f; char buf[4096]; size_t len; if (!(f = fopen(filename, "r"))) { fprintf(stderr, "[cgit] Failed to include file %s: %s (%d).\n", filename, strerror(errno), errno); return -1; } while((len = fread(buf, 1, 4096, f)) > 0) write(htmlfd, buf, len); fclose(f); return 0; } int hextoint(char c) { if (c >= 'a' && c <= 'f') return 10 + c - 'a'; else if (c >= 'A' && c <= 'F') return 10 + c - 'A'; else if (c >= '0' && c <= '9') return c - '0'; else return -1; } char *convert_query_hexchar(char *txt) { int d1, d2; if (strlen(txt) < 3) { *txt = '\0'; return txt-1; } d1 = hextoint(*(txt+1)); d2 = hextoint(*(txt+2)); if (d1<0 || d2<0) { strcpy(txt, txt+3); return txt-1; } else { *txt = d1 * 16 + d2; strcpy(txt+1, txt+3); return txt; } } int http_parse_querystring(const char *txt_, void (*fn)(const char *name, const char *value)) { char *t, *txt, *value = NULL, c; if (!txt_) return 0; t = txt = strdup(txt_); if (t == NULL) { printf("Out of memory\n"); exit(1); } while((c=*t) != '\0') { if (c=='=') { *t = '\0'; value = t+1; } else if (c=='+') { *t = ' '; } else if (c=='%') { t = convert_query_hexchar(t); } else if (c=='&') { *t = '\0'; (*fn)(txt, value); txt = t+1; value = NULL; } t++; } if (t!=txt) (*fn)(txt, value); return 0; }