diff options
Diffstat (limited to 'html.c')
| -rw-r--r-- | html.c | 256 |
1 files changed, 256 insertions, 0 deletions
diff --git a/html.c b/html.c new file mode 100644 index 0000000..fa83f2c --- /dev/null +++ b/html.c @@ -0,0 +1,256 @@ +#include <sys/stat.h> +#include <sys/types.h> + +#include <fcntl.h> +#include <errno.h> +#include <limits.h> +#include <stdio.h> +#include <string.h> +#include <time.h> +#include <unistd.h> + +#include <gemtext.h> + +#include "gemlog.h" + +/* TODO: allow user to specify custom header/footer */ +#define HTML_HEADER_BEGIN "<!DOCTYPE html><html><head><meta charset=\"UTF-8\"><meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\">" +#define HTML_HEADER_END "</head><body>" +#define HTML_FOOTER "</body></html>" + +static int +gemlog_write_html_text(struct gemtext *text, int fd) +{ + if (write(fd, "<p>", strlen("<p>")) == -1) + return -1; + if (write(fd, ((struct gemtext_text *)text)->text, strlen(((struct gemtext_text *)text)->text)) == -1) + return -1; + if (write(fd, "</p>\n", strlen("</p>\n")) == -1) + return -1; + return 0; +} + +static int +gemlog_write_html_link(struct gemtext *text, int fd) +{ + if (write(fd, "<p><a href=\"", strlen("<p><a href=\"")) == -1) + return -1; + if (write(fd, ((struct gemtext_link *)text)->link, strlen(((struct gemtext_link *)text)->link)) == -1) + return -1; + if (write(fd, "\">", strlen("\">")) == -1) + return -1; + if (((struct gemtext_link *)text)->name) { + if (write(fd, ((struct gemtext_link *)text)->name, strlen(((struct gemtext_link *)text)->name)) == -1) + return -1; + } + if (write(fd, "</a></p>\n", strlen("</a></p>\n")) == -1) + return -1; + return 0; +} + +static int +gemlog_write_html_pre(struct gemtext *text, int fd) +{ + if (write(fd, "<p><pre>", strlen("<p><pre>")) == -1) + return -1; + if (write(fd, ((struct gemtext_pre *)text)->text, strlen(((struct gemtext_pre *)text)->text)) == -1) + return -1; + if (write(fd, "</pre></p>\n", strlen("</pre></p>\n")) == -1) + return -1; + return 0; +} + +static int +gemlog_write_html_h1(struct gemtext *text, int fd) +{ + if (write(fd, "<h1>", strlen("<h1>")) == -1) + return -1; + if (write(fd, ((struct gemtext_h1 *)text)->text, strlen(((struct gemtext_h1 *)text)->text)) == -1) + return -1; + if (write(fd, "</h1>\n", strlen("</h1>\n")) == -1) + return -1; + return 0; +} + +static int +gemlog_write_html_h2(struct gemtext *text, int fd) +{ + if (write(fd, "<h2>", strlen("<h2>")) == -1) + return -1; + if (write(fd, ((struct gemtext_h2 *)text)->text, strlen(((struct gemtext_h2 *)text)->text)) == -1) + return -1; + if (write(fd, "</h2>\n", strlen("</h2>\n")) == -1) + return -1; + return 0; +} + +static int +gemlog_write_html_h3(struct gemtext *text, int fd) +{ + if (write(fd, "<h3>", strlen("<h3>")) == -1) + return -1; + if (write(fd, ((struct gemtext_h3 *)text)->text, strlen(((struct gemtext_h3 *)text)->text)) == -1) + return -1; + if (write(fd, "</h3>\n", strlen("</h3>\n")) == -1) + return -1; + return 0; +} + +static int +gemlog_write_html_ul(struct gemtext *text, int fd) +{ + if (write(fd, "<li>", strlen("<li>")) == -1) + return -1; + if (write(fd, ((struct gemtext_ul *)text)->text, strlen(((struct gemtext_ul *)text)->text)) == -1) + return -1; + if (write(fd, "</li>\n", strlen("</li>\n")) == -1) + return -1; + return 0; +} + +static int +gemlog_write_html_qt(struct gemtext *text, int fd) +{ + if (write(fd, "<blockquote>", strlen("<blockquote>")) == -1) + return -1; + if (write(fd, ((struct gemtext_qt *)text)->text, strlen(((struct gemtext_qt *)text)->text)) == -1) + return -1; + if (write(fd, "</blockquote>\n", strlen("</blockquote>\n")) == -1) + return -1; + return 0; +} + +int +gemlog_write_html(struct gemlog_entry **feed, const char *path) +{ + int i; + int x; + int ulindicator; + int fd; + char pathbuf[PATH_MAX+1]; + char fmtbuf[PATH_MAX+1]; + + if (mkdir(path, 0755) == -1) { + if (errno != EEXIST) + return -1; + } + + for (i = 0; feed[i] != NULL; i++) { + strlcpy(pathbuf, path, sizeof(pathbuf)); + strlcat(pathbuf, "/", sizeof(pathbuf)); + snprintf(fmtbuf, sizeof(fmtbuf), "%d", feed[i]->date.tm_year+1900); + strlcat(pathbuf, fmtbuf, sizeof(pathbuf)); + if (mkdir(pathbuf, 0755) == -1) { + if (errno != EEXIST) + return -1; + } + + strlcat(pathbuf, "/", sizeof(pathbuf)); + snprintf(fmtbuf, sizeof(fmtbuf), "%d", feed[i]->date.tm_mon+1); + strlcat(pathbuf, fmtbuf, sizeof(pathbuf)); + if (mkdir(pathbuf, 0755) == -1) { + if (errno != EEXIST) + return -1; + } + + strlcat(pathbuf, "/", sizeof(pathbuf)); + snprintf(fmtbuf, sizeof(fmtbuf), "%d", feed[i]->date.tm_mday); + strlcat(pathbuf, fmtbuf, sizeof(pathbuf)); + if (mkdir(pathbuf, 0755) == -1) { + if (errno != EEXIST) + return -1; + } + + strlcat(pathbuf, "/", sizeof(pathbuf)); + snprintf(fmtbuf, sizeof(fmtbuf), "%d", feed[i]->date.tm_hour); + strlcat(pathbuf, fmtbuf, sizeof(pathbuf)); + if (mkdir(pathbuf, 0755) == -1) { + if (errno != EEXIST) + return -1; + } + + strlcat(pathbuf, "/", sizeof(pathbuf)); + strlcat(pathbuf, GEMLOG_CONTENT_HTML_FILENAME, sizeof(pathbuf)); + fd = open(pathbuf, O_WRONLY|O_CREAT|O_TRUNC); + if (fd == -1) + return -1; + if (chmod(pathbuf, 0644) == -1) { + close(fd); + return -1; + } + + /* write header */ + if (write(fd, HTML_HEADER_BEGIN, strlen(HTML_HEADER_BEGIN)) == -1) { + close(fd); + return -1; + } + if (write(fd, "<title>", strlen("<title>")) == -1) { + close(fd); + return -1; + } + if (write(fd, feed[i]->title, strlen(feed[i]->title)) == -1) { + close(fd); + return -1; + } + if (write(fd, "</title>", strlen("</title>")) == -1) { + close(fd); + return -1; + } + if (write(fd, HTML_HEADER_END, strlen(HTML_HEADER_END)) == -1) { + close(fd); + return -1; + } + + ulindicator = 0; + for (x = 0; feed[i]->content[x] != NULL; x++) { + if (ulindicator) { + if (gemtext_type(feed[i]->content[x]) != GEMTEXT_UL) { + if (write(fd, "</ul>\n", strlen("</ul>\n")) == -1) { + close(fd); + return -1; + } + ulindicator = 0; + } + } + switch (gemtext_type(feed[i]->content[x])) { + case GEMTEXT_TEXT: + gemlog_write_html_text(feed[i]->content[x], fd); + break; + case GEMTEXT_LINK: + gemlog_write_html_link(feed[i]->content[x], fd); + break; + case GEMTEXT_PRE: + gemlog_write_html_pre(feed[i]->content[x], fd); + break; + case GEMTEXT_H1: + gemlog_write_html_h1(feed[i]->content[x], fd); + break; + case GEMTEXT_H2: + gemlog_write_html_h2(feed[i]->content[x], fd); + break; + case GEMTEXT_H3: + gemlog_write_html_h3(feed[i]->content[x], fd); + break; + case GEMTEXT_UL: + if (!ulindicator) { + if (write(fd, "<ul>\n", strlen("<ul>\n")) == -1) { + close(fd); + return -1; + } + ulindicator = 1; + } + gemlog_write_html_ul(feed[i]->content[x], fd); + break; + case GEMTEXT_QT: + gemlog_write_html_qt(feed[i]->content[x], fd); + break; + default: + close(fd); + return -1; + } + } + close(fd); + } + + return 0; +} |